http://git-wip-us.apache.org/repos/asf/airavata-php-gateway/blob/488b772f/modules/commons/src/main/java/org/apache/airavata/common/utils/ApplicationSettings.java
----------------------------------------------------------------------
diff --git 
a/modules/commons/src/main/java/org/apache/airavata/common/utils/ApplicationSettings.java
 
b/modules/commons/src/main/java/org/apache/airavata/common/utils/ApplicationSettings.java
deleted file mode 100644
index 3c3eed7..0000000
--- 
a/modules/commons/src/main/java/org/apache/airavata/common/utils/ApplicationSettings.java
+++ /dev/null
@@ -1,455 +0,0 @@
-/*
- *
- * Licensed to the Apache Software Foundation (ASF) under one
- * or more contributor license agreements.  See the NOTICE file
- * distributed with this work for additional information
- * regarding copyright ownership.  The ASF licenses this file
- * to you under the Apache License, Version 2.0 (the
- * "License"); you may not use this file except in compliance
- * with the License.  You may obtain a copy of the License at
- *
- *   http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing,
- * software distributed under the License is distributed on an
- * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
- * KIND, either express or implied.  See the License for the
- * specific language governing permissions and limitations
- * under the License.
- *
- */
-
-package org.apache.airavata.common.utils;
-
-import org.apache.airavata.common.exception.ApplicationSettingsException;
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
-
-import java.io.File;
-import java.io.FileOutputStream;
-import java.io.IOException;
-import java.io.InputStream;
-import java.net.MalformedURLException;
-import java.net.URL;
-import java.util.*;
-import java.util.regex.Matcher;
-import java.util.regex.Pattern;
-
-public class ApplicationSettings {
-    public static final String SERVER_PROPERTIES="airavata-server.properties";
-    public static final String AIRAVATA_CONFIG_DIR = "airavata.config.dir";
-
-    public static String ADDITIONAL_SETTINGS_FILES = "external.settings";
-
-       protected Properties properties = new Properties();
-
-    private Exception propertyLoadException;
-
-
-    protected static final String TRUST_STORE_PATH="trust.store";
-    protected static final String TRUST_STORE_PASSWORD="trust.store.password";
-
-    private static final String REGULAR_EXPRESSION = "\\$\\{[a-zA-Z.-]*\\}";
-
-    private final static Logger logger = 
LoggerFactory.getLogger(ApplicationSettings.class);
-
-    private static final String SHUTDOWN_STATEGY_STRING="shutdown.strategy";
-    
-    protected static ApplicationSettings INSTANCE;
-    public static enum ShutdownStrategy{
-       NONE,
-       SELF_TERMINATE
-    }
-    {
-       loadProperties();
-    }
-
-       private void loadProperties() {
-               URL url = getPropertyFileURL();
-        try {
-            properties.load(url.openStream());
-            logger.info("Settings loaded from "+url.toString());
-            URL[] externalSettingsFileURLs = getExternalSettingsFileURLs();
-            for (URL externalSettings : externalSettingsFileURLs) {
-                               
mergeSettingsImpl(externalSettings.openStream());
-                               logger.info("External settings merged from 
"+url.toString());
-                       }
-        } catch (Exception e) {
-               propertyLoadException=e;
-        }
-       }
-
-       protected URL getPropertyFileURL() {
-               return ApplicationSettings.loadFile(SERVER_PROPERTIES);
-       }
-       
-       protected URL[] getExternalSettingsFileURLs(){
-               try {
-                       List<URL> externalSettingsFileURLs=new ArrayList<URL>();
-                       String externalSettingsFileNames = 
getSettingImpl(ADDITIONAL_SETTINGS_FILES);
-                       String[] externalSettingFiles = 
externalSettingsFileNames.split(",");
-                       for (String externalSettingFile : externalSettingFiles) 
{
-                               URL externalSettingFileURL = 
ApplicationSettings.loadFile(externalSettingFile);
-                               if (externalSettingFileURL==null){
-                                       logger.warn("Could not file external 
settings file "+externalSettingFile);
-                               }else{
-                                       
externalSettingsFileURLs.add(externalSettingFileURL);
-                               }
-                       }
-                       return externalSettingsFileURLs.toArray(new URL[]{});
-               } catch (ApplicationSettingsException e) {
-                       return new URL[]{};
-               }
-       }
-       protected static ApplicationSettings getInstance(){
-               if (INSTANCE==null){
-                       INSTANCE=new ApplicationSettings();
-               }
-               return INSTANCE;
-       }
-       
-       protected static void setInstance(ApplicationSettings settingsInstance){
-               INSTANCE=settingsInstance;
-       }
-       
-       private void saveProperties() throws ApplicationSettingsException{
-               URL url = getPropertyFileURL();
-               if (url.getProtocol().equalsIgnoreCase("file")){
-                       try {
-                               properties.store(new 
FileOutputStream(url.getPath()), Calendar.getInstance().toString());
-                       } catch (Exception e) {
-                               throw new 
ApplicationSettingsException(url.getPath(), e);
-                       }
-               }else{
-                       logger.warn("Properties cannot be updated to location 
"+url.toString());
-               }
-       }
-       
-    private void validateSuccessfulPropertyFileLoad() throws 
ApplicationSettingsException{
-       if (propertyLoadException!=null){
-               throw new 
ApplicationSettingsException(propertyLoadException.getMessage(), 
propertyLoadException);
-       }
-    }
-
-    /**
-     * Returns the configuration value relevant for the given key.
-     * If configuration value contains references to other configuration 
values they will also
-     * be replaced. E.g :- If configuration key reads 
http://${ip}:${port}/axis2/services/RegistryService?wsdl,
-     * the variables ip and port will get replaced by their appropriated 
values in the configuration.
-     * @param key The configuration key to read value of
-     * @return The configuration value. For above example caller will get a 
value like
-     * http://192.2.33.12:8080/axis2/services/RegistryService?wsdl
-     * @throws ApplicationSettingsException If an error occurred while reading 
configurations.
-     * @deprecated use #getSetting(String) instead
-     */
-    public String getAbsoluteSetting(String key) throws 
ApplicationSettingsException {
-
-        String configurationValueWithVariables = 
ApplicationSettings.getSetting(key);
-
-        List<String> variableList
-                = getAllMatches(configurationValueWithVariables, 
REGULAR_EXPRESSION);
-
-        if (variableList == null || variableList.isEmpty()) {
-            return configurationValueWithVariables;
-        }
-
-        for(String variableIdentifier : variableList) {
-            String variableName = getVariableNameOnly(variableIdentifier);
-            String value = getAbsoluteSetting(variableName);
-
-            configurationValueWithVariables = 
configurationValueWithVariables.replace(variableIdentifier, value);
-        }
-
-        return configurationValueWithVariables;
-
-    }
-
-    private static String getVariableNameOnly(String variableWithIdentifiers) {
-        return variableWithIdentifiers.substring(2, 
(variableWithIdentifiers.length() - 1));
-    }
-
-    private static List<String> getAllMatches(String text, String regex) {
-        List<String> matches = new ArrayList<String>();
-        Matcher m = Pattern.compile("(?=(" + regex + "))").matcher(text);
-        while(m.find()) {
-            matches.add(m.group(1));
-        }
-        return matches;
-    }
-    
-    public String getSettingImpl(String key) throws 
ApplicationSettingsException{
-       String rawValue=null;
-       if (System.getProperties().containsKey(key)){
-               rawValue=System.getProperties().getProperty(key);
-       }else{
-               validateSuccessfulPropertyFileLoad();
-               if (properties.containsKey(key)){
-                       rawValue=properties.getProperty(key);
-               }else{
-                       throw new ApplicationSettingsException(key);
-               }
-       }
-       return deriveAbsoluteValueImpl(rawValue);
-    }
-    
-    public String getSettingImpl(String key, String defaultValue){
-       try {
-               return getSettingImpl(key);
-               } catch (ApplicationSettingsException e) {
-                       //we'll ignore this error since a default value is 
provided
-               }
-               return defaultValue;
-    }
-
-       private String deriveAbsoluteValueImpl(String property){
-               if (property!=null){
-                       Map<Integer, String> containedParameters = 
StringUtil.getContainedParameters(property);
-                       List<String> parametersAlreadyProcessed=new 
ArrayList<String>();
-                       for (String parameter : containedParameters.values()) {
-                               if 
(!parametersAlreadyProcessed.contains(parameter)) {
-                                       String parameterName = 
parameter.substring(2,parameter.length() - 1);
-                                       String parameterValue = 
getSetting(parameterName,parameter);
-                                       property = 
property.replaceAll(Pattern.quote(parameter), parameterValue);
-                                       
parametersAlreadyProcessed.add(parameter);
-                               }
-                       }
-               }
-               return property;
-       }
-    
-    public void setSettingImpl(String key, String value) throws 
ApplicationSettingsException{
-       properties.setProperty(key, value);
-       saveProperties();
-    }
-    
-    public boolean isSettingDefinedImpl(String key) throws 
ApplicationSettingsException{
-       validateSuccessfulPropertyFileLoad();
-       return properties.containsKey(key);
-    }
-
-    public String getTrustStorePathImpl() throws ApplicationSettingsException {
-        return getSetting(TRUST_STORE_PATH);
-    }
-
-    public String getTrustStorePasswordImpl() throws 
ApplicationSettingsException {
-        return getSetting(TRUST_STORE_PASSWORD);
-    }
-
-    public String getCredentialStoreKeyStorePathImpl() throws 
ApplicationSettingsException {
-        return getSetting("credential.store.keystore.url");
-    }
-
-    public String getCredentialStoreKeyAliasImpl() throws 
ApplicationSettingsException {
-        return getSetting("credential.store.keystore.alias");
-    }
-
-    public String getCredentialStoreKeyStorePasswordImpl() throws 
ApplicationSettingsException {
-        return getSetting("credential.store.keystore.password");
-    }
-
-    public String getCredentialStoreNotifierEnabledImpl() throws 
ApplicationSettingsException {
-        return getSetting("notifier.enabled");
-    }
-
-    public String getCredentialStoreNotifierDurationImpl() throws 
ApplicationSettingsException {
-        return getSetting("notifier.duration");
-    }
-
-    public String getCredentialStoreEmailServerImpl() throws 
ApplicationSettingsException {
-        return getSetting("email.server");
-    }
-
-    public String getCredentialStoreEmailServerPortImpl() throws 
ApplicationSettingsException {
-        return getSetting("email.server.port");
-    }
-
-    public String getCredentialStoreEmailUserImpl() throws 
ApplicationSettingsException {
-        return getSetting("email.user");
-    }
-
-    public String getCredentialStoreEmailPasswordImpl() throws 
ApplicationSettingsException {
-        return getSetting("email.password");
-    }
-
-    public String getCredentialStoreEmailSSLConnectImpl() throws 
ApplicationSettingsException {
-        return getSetting("email.ssl");
-    }
-
-    public String getCredentialStoreEmailFromEmailImpl() throws 
ApplicationSettingsException {
-        return getSetting("email.from");
-    }
-
-    /**
-     * @deprecated use {{@link #getSetting(String)}}
-     * @return
-     */
-    public Properties getPropertiesImpl() {
-        return properties;
-    }
-    
-    public void mergeSettingsImpl(Map<String,String> props){
-       properties.putAll(props);
-    }
-    
-    public void mergeSettingsImpl(InputStream stream) throws IOException{
-       Properties tmpProp = new Properties();
-       tmpProp.load(stream);
-       properties.putAll(tmpProp);
-    }
-    
-    public void mergeSettingsCommandLineArgsImpl(String[] args){
-       properties.putAll(StringUtil.parseCommandLineOptions(args));
-    }
- 
-    public ShutdownStrategy getShutdownStrategyImpl() throws Exception{
-       String strategy = null;
-       try {
-                       strategy = getSetting(SHUTDOWN_STATEGY_STRING, 
ShutdownStrategy.SELF_TERMINATE.toString());
-                       return ShutdownStrategy.valueOf(strategy);
-               } catch (Exception e) {
-                       //if the string mentioned in config is invalid
-                       throw new Exception("Invalid shutdown strategy 
configured : "+strategy);
-               }
-    }
-    
-    /*
-     * Static methods which will be used by the users
-     */
-    
-    public static String getSetting(String key) throws 
ApplicationSettingsException {
-       return getInstance().getSettingImpl(key);
-    }
-
-    public static String getSetting(String key, String defaultValue) {
-       return getInstance().getSettingImpl(key,defaultValue);
-
-    }
-    
-    public static void setSetting(String key, String value) throws 
ApplicationSettingsException{
-       getInstance().properties.setProperty(key, value);
-       getInstance().saveProperties();
-    }
-    
-    public static boolean isSettingDefined(String key) throws 
ApplicationSettingsException{
-       return getInstance().properties.containsKey(key);
-    }
-
-    public static String getTrustStorePath() throws 
ApplicationSettingsException {
-        return getSetting(TRUST_STORE_PATH);
-    }
-
-    public static String getTrustStorePassword() throws 
ApplicationSettingsException {
-        return getSetting(TRUST_STORE_PASSWORD);
-    }
-
-    public static void initializeTrustStore() throws 
ApplicationSettingsException {
-        SecurityUtil.setTrustStoreParameters(getTrustStorePath(), 
getTrustStorePassword());
-    }
-
-    public static String getCredentialStoreKeyStorePath() throws 
ApplicationSettingsException {
-        return getSetting("credential.store.keystore.url");
-    }
-
-    public static String getCredentialStoreKeyAlias() throws 
ApplicationSettingsException {
-        return getSetting("credential.store.keystore.alias");
-    }
-
-    public static String getCredentialStoreKeyStorePassword() throws 
ApplicationSettingsException {
-        return getSetting("credential.store.keystore.password");
-    }
-
-    public static String getCredentialStoreServerHost() throws 
ApplicationSettingsException {
-        return getSetting("credential.store.server.host");
-    }
-
-    public static String getCredentialStoreServerPort() throws 
ApplicationSettingsException {
-        return getSetting("credential.store.server.port");
-    }
-    public static String getCredentialStoreNotifierEnabled() throws 
ApplicationSettingsException {
-        return getSetting("notifier.enabled");
-    }
-
-    public static String getCredentialStoreNotifierDuration() throws 
ApplicationSettingsException {
-        return getSetting("notifier.duration");
-    }
-
-    public static String getCredentialStoreEmailServer() throws 
ApplicationSettingsException {
-        return getSetting("email.server");
-    }
-
-    public static String getCredentialStoreEmailServerPort() throws 
ApplicationSettingsException {
-        return getSetting("email.server.port");
-    }
-
-    public static String getCredentialStoreEmailUser() throws 
ApplicationSettingsException {
-        return getSetting("email.user");
-    }
-
-    public static String getCredentialStoreEmailPassword() throws 
ApplicationSettingsException {
-        return getSetting("email.password");
-    }
-
-    public static String getCredentialStoreEmailSSLConnect() throws 
ApplicationSettingsException {
-        return getSetting("email.ssl");
-    }
-
-    public static String getCredentialStoreEmailFromEmail() throws 
ApplicationSettingsException {
-        return getSetting("email.from");
-    }
-
-    public static String getRegistryServerPort() throws 
ApplicationSettingsException {
-        return getSetting("regserver.server.port");
-    }
-
-    public static String getRegistryServerHost() throws 
ApplicationSettingsException {
-        return getSetting("regserver.server.host");
-    }
-
-    public static String getSuperTenantGatewayId() throws 
ApplicationSettingsException {
-        return getSetting("super.tenant.gatewayId");
-    }
-
-    public static String getClusterStatusMonitoringRepatTime() throws 
ApplicationSettingsException {
-        return getSetting("cluster.status.monitoring.repeat.time");
-    }
-
-    /**
-     * @deprecated use {{@link #getSetting(String)}}
-     * @return
-     * @throws ApplicationSettingsException 
-     */
-    public static Properties getProperties() throws 
ApplicationSettingsException {
-        return getInstance().properties;
-    }
-    
-    public static void mergeSettings(Map<String,String> props) {
-       getInstance().mergeSettingsImpl(props);
-    }
-    
-    public static void mergeSettings(InputStream stream) throws IOException{
-       getInstance().mergeSettingsImpl(stream);
-    }
-    
-    public static void mergeSettingsCommandLineArgs(String[] args){
-       getInstance().mergeSettingsCommandLineArgsImpl(args);
-    }
- 
-    public static ShutdownStrategy getShutdownStrategy() throws Exception{
-       return getInstance().getShutdownStrategyImpl();
-    }
-
-    public static URL loadFile(String fileName) {
-        final URL resource = 
ApplicationSettings.class.getClassLoader().getResource(fileName);
-        if(resource == null) {
-            if(System.getProperty(AIRAVATA_CONFIG_DIR) != null) {
-                final String airavataConfigDir = 
System.getProperty(AIRAVATA_CONFIG_DIR);
-                try {
-                     return new File(airavataConfigDir + File.separator + 
fileName).toURI().toURL();
-                } catch (MalformedURLException e) {
-                    logger.error("Error parsing the file from 
airavata.config.dir", airavataConfigDir);
-                }
-            }
-        }
-        return resource;
-    }
-}

http://git-wip-us.apache.org/repos/asf/airavata-php-gateway/blob/488b772f/modules/commons/src/main/java/org/apache/airavata/common/utils/AwsMetadata.java
----------------------------------------------------------------------
diff --git 
a/modules/commons/src/main/java/org/apache/airavata/common/utils/AwsMetadata.java
 
b/modules/commons/src/main/java/org/apache/airavata/common/utils/AwsMetadata.java
deleted file mode 100644
index f9b4a65..0000000
--- 
a/modules/commons/src/main/java/org/apache/airavata/common/utils/AwsMetadata.java
+++ /dev/null
@@ -1,137 +0,0 @@
-/*
- *
- * Licensed to the Apache Software Foundation (ASF) under one
- * or more contributor license agreements.  See the NOTICE file
- * distributed with this work for additional information
- * regarding copyright ownership.  The ASF licenses this file
- * to you under the Apache License, Version 2.0 (the
- * "License"); you may not use this file except in compliance
- * with the License.  You may obtain a copy of the License at
- *
- *   http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing,
- * software distributed under the License is distributed on an
- * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
- * KIND, either express or implied.  See the License for the
- * specific language governing permissions and limitations
- * under the License.
- *
- */
-package org.apache.airavata.common.utils;
-
-
-import com.google.common.base.Preconditions;
-import com.google.common.net.InetAddresses;
-import com.google.gson.*;
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
-
-import java.io.BufferedReader;
-import java.io.InputStreamReader;
-import java.net.InetAddress;
-import java.net.URI;
-import java.net.URISyntaxException;
-
-public class AwsMetadata {
-    private static final Logger log = 
LoggerFactory.getLogger(AwsMetadata.class);
-    private static final String METADATA_URI_BASE = "http://169.254.169.254/";;
-    private static final String REGION_SUFFIX = 
"/latest/dynamic/instance-identity/document";
-    private static final String ZONE_SUFFIX = 
"/latest/meta-data/placement/availability-zone";
-    private static final String PUBLIC_IPV4_SUFFIX = 
"/latest/meta-data/public-ipv4";
-    private static final String PRIVATE_IPV4_SUFFIX = 
"latest/meta-data/local-ipv4";
-    private static final String HOSTNAME_SUFFIX = "/latest/meta-data/hostname";
-    private static final String ID_SUFFIX = "/latest/meta-data/instance-id";
-
-    private final URI baseUri;
-
-    private String id;
-    private String region;
-    private String hostname;
-    private String zone;
-    private InetAddress publicIp;
-    private InetAddress privateIp;
-
-    public AwsMetadata() {
-        try {
-            baseUri = new URI(METADATA_URI_BASE);
-        } catch (URISyntaxException e) {
-            Preconditions.checkState(false, "Unexpected URI Syntax Exception: 
{}", e);
-            throw new RuntimeException(e);
-        }
-    }
-
-    public String getRegion() {
-        if (region == null) {
-            try {
-                String dynamicData = getMetadataAt(REGION_SUFFIX);
-                if (dynamicData != null) {
-                    final JsonObject asJsonObject = new 
JsonParser().parse(dynamicData).getAsJsonObject();
-                    region = asJsonObject.get("region").getAsString();
-                }
-            } catch (ClassCastException e) {
-                log.error("Unable to get region, expecting a JSON Object", e);
-            }
-        }
-        return region;
-    }
-
-    public String getZoneName() {
-        if (zone == null) {
-            zone = getMetadataAt(ZONE_SUFFIX);
-        }
-        return zone;
-    }
-
-    public String getId() {
-        if (id == null) {
-            id = getMetadataAt(ID_SUFFIX);
-        }
-
-        return id;
-    }
-
-    public String getHostname() {
-        if (hostname == null) {
-            hostname = getMetadataAt(HOSTNAME_SUFFIX);
-        }
-        return hostname;
-    }
-
-    public InetAddress getPublicIpAddress() {
-        if (publicIp == null) {
-            String ip = getMetadataAt(PUBLIC_IPV4_SUFFIX);
-            if (ip != null) {
-                publicIp = InetAddresses.forString(ip);
-            }
-        }
-        return publicIp;
-    }
-
-    public InetAddress getInternalIpAddress() {
-        if (privateIp == null) {
-            String ip = getMetadataAt(PRIVATE_IPV4_SUFFIX);
-            if (ip != null) {
-                privateIp = InetAddresses.forString(ip);
-            }
-        }
-        return privateIp;
-    }
-
-    private String getMetadataAt(String suffix) {
-        try {
-            URI resolved = baseUri.resolve(suffix);
-            StringBuilder builder = new StringBuilder();
-            String line = null;
-            try (BufferedReader reader = new BufferedReader(new 
InputStreamReader(resolved.toURL().openStream()))) {
-                while ((line = reader.readLine()) != null) {
-                    builder.append(line);
-                }
-                return builder.toString();
-            }
-        } catch (Exception e) {
-            // ignore for now to make sure local servers don't go verbose
-        }
-        return null;
-    }
-}

http://git-wip-us.apache.org/repos/asf/airavata-php-gateway/blob/488b772f/modules/commons/src/main/java/org/apache/airavata/common/utils/BrowserLauncher.java
----------------------------------------------------------------------
diff --git 
a/modules/commons/src/main/java/org/apache/airavata/common/utils/BrowserLauncher.java
 
b/modules/commons/src/main/java/org/apache/airavata/common/utils/BrowserLauncher.java
deleted file mode 100644
index 3ac6d4e..0000000
--- 
a/modules/commons/src/main/java/org/apache/airavata/common/utils/BrowserLauncher.java
+++ /dev/null
@@ -1,98 +0,0 @@
-/*
- *
- * Licensed to the Apache Software Foundation (ASF) under one
- * or more contributor license agreements.  See the NOTICE file
- * distributed with this work for additional information
- * regarding copyright ownership.  The ASF licenses this file
- * to you under the Apache License, Version 2.0 (the
- * "License"); you may not use this file except in compliance
- * with the License.  You may obtain a copy of the License at
- *
- *   http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing,
- * software distributed under the License is distributed on an
- * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
- * KIND, either express or implied.  See the License for the
- * specific language governing permissions and limitations
- * under the License.
- *
- */
-
-package org.apache.airavata.common.utils;
-
-import java.io.IOException;
-import java.lang.reflect.InvocationTargetException;
-import java.lang.reflect.Method;
-import java.net.URL;
-
-import org.apache.airavata.common.exception.AiravataException;
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
-
-/**
- * Opens URLs with the OS-specific browser.
- */
-public class BrowserLauncher {
-
-    private static final String ERROR_MESSAGE = "Error while attempting to 
launch web browser";
-
-    private static Logger logger = 
LoggerFactory.getLogger(BrowserLauncher.class);
-
-    /**
-     * Opens a specified URL with the browser.
-     * 
-     * @param url
-     *            The specified URL.
-     * @throws AiravataException
-     */
-    public static void openURL(URL url) throws AiravataException {
-        openURL(url.toString());
-    }
-
-    /**
-     * Opens a specified URL with the browser.
-     * 
-     * @param url
-     *            The specified URL.
-     * @throws AiravataException
-     */
-    public static void openURL(String url) throws AiravataException {
-        logger.debug("Enter:" + url);
-        String osName = System.getProperty("os.name");
-        try {
-            if (osName.startsWith("Mac OS")) {
-                Class macUtils = Class.forName("com.apple.mrj.MRJFileUtils");
-                Method openURL = macUtils.getDeclaredMethod("openURL", new 
Class[] { String.class });
-                openURL.invoke(null, new Object[] { url });
-            } else if (osName.startsWith("Windows"))
-                Runtime.getRuntime().exec("rundll32 
url.dll,FileProtocolHandler " + url);
-            else { // assume Unix or Linux
-                String[] browsers = { "firefox", "mozilla", "netscape", 
"opera", "konqueror" };
-                String browser = null;
-                for (int count = 0; count < browsers.length && browser == 
null; count++)
-                    if (Runtime.getRuntime().exec(new String[] { "which", 
browsers[count] }).waitFor() == 0)
-                        browser = browsers[count];
-                if (browser == null) {
-                    throw new AiravataException("Could not find web browser.");
-                } else {
-                    Runtime.getRuntime().exec(new String[] { browser, url });
-                }
-            }
-        } catch (ClassNotFoundException e) {
-            throw new AiravataException(ERROR_MESSAGE, e);
-        } catch (NoSuchMethodException e) {
-            throw new AiravataException(ERROR_MESSAGE, e);
-        } catch (IllegalAccessException e) {
-            throw new AiravataException(ERROR_MESSAGE, e);
-        } catch (InvocationTargetException e) {
-            throw new AiravataException(ERROR_MESSAGE, e);
-        } catch (IOException e) {
-            throw new AiravataException(ERROR_MESSAGE, e);
-        } catch (InterruptedException e) {
-            throw new AiravataException(ERROR_MESSAGE, e);
-        } catch (RuntimeException e) {
-            throw new AiravataException(ERROR_MESSAGE, e);
-        }
-    }
-}
\ No newline at end of file

http://git-wip-us.apache.org/repos/asf/airavata-php-gateway/blob/488b772f/modules/commons/src/main/java/org/apache/airavata/common/utils/ClientSettings.java
----------------------------------------------------------------------
diff --git 
a/modules/commons/src/main/java/org/apache/airavata/common/utils/ClientSettings.java
 
b/modules/commons/src/main/java/org/apache/airavata/common/utils/ClientSettings.java
deleted file mode 100644
index 5373772..0000000
--- 
a/modules/commons/src/main/java/org/apache/airavata/common/utils/ClientSettings.java
+++ /dev/null
@@ -1,27 +0,0 @@
-/*
- *
- * Licensed to the Apache Software Foundation (ASF) under one
- * or more contributor license agreements.  See the NOTICE file
- * distributed with this work for additional information
- * regarding copyright ownership.  The ASF licenses this file
- * to you under the Apache License, Version 2.0 (the
- * "License"); you may not use this file except in compliance
- * with the License.  You may obtain a copy of the License at
- *
- *   http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing,
- * software distributed under the License is distributed on an
- * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
- * KIND, either express or implied.  See the License for the
- * specific language governing permissions and limitations
- * under the License.
- *
- */
-
-package org.apache.airavata.common.utils;
-
-
-public class ClientSettings extends ApplicationSettings {
-
-}

http://git-wip-us.apache.org/repos/asf/airavata-php-gateway/blob/488b772f/modules/commons/src/main/java/org/apache/airavata/common/utils/Constants.java
----------------------------------------------------------------------
diff --git 
a/modules/commons/src/main/java/org/apache/airavata/common/utils/Constants.java 
b/modules/commons/src/main/java/org/apache/airavata/common/utils/Constants.java
deleted file mode 100644
index b5fbd4b..0000000
--- 
a/modules/commons/src/main/java/org/apache/airavata/common/utils/Constants.java
+++ /dev/null
@@ -1,70 +0,0 @@
-/*
- *
- * Licensed to the Apache Software Foundation (ASF) under one
- * or more contributor license agreements.  See the NOTICE file
- * distributed with this work for additional information
- * regarding copyright ownership.  The ASF licenses this file
- * to you under the Apache License, Version 2.0 (the
- * "License"); you may not use this file except in compliance
- * with the License.  You may obtain a copy of the License at
- *
- *   http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing,
- * software distributed under the License is distributed on an
- * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
- * KIND, either express or implied.  See the License for the
- * specific language governing permissions and limitations
- * under the License.
- *
- */
-
-package org.apache.airavata.common.utils;
-
-/**
- * Constants used in Airavata should go here.
- */
-public final class Constants {
-
-    public static final String USER_IN_SESSION = "userName";
-
-
-    public static final String STAT = "stat";
-    public static final String JOB = "job";
-    //API security relates property names
-    public static final String IS_API_SECURED = "api.secured";
-    public static final String SECURITY_MANAGER_CLASS = 
"security.manager.class";
-    public static final String REMOTE_OAUTH_SERVER_URL = 
"remote.oauth.authorization.server";
-    public static final String IS_TLS_ENABLED = "TLS.enabled";
-    public static final String TLS_SERVER_PORT = "TLS.api.server.port";
-    public static final String KEYSTORE_PATH = "keystore.path";
-    public static final String KEYSTORE_PASSWORD = "keystore.password";
-    public static final String TLS_CLIENT_TIMEOUT = "TLS.client.timeout";
-
-    public static final String API_METHOD_NAME = "api.method.name";
-
-    //constants in XACML authorization response.
-    public static final String NOT_APPLICABLE = "NotApplicable";
-    public static final String INDETERMINATE = "Indeterminate";
-    public static final String DENY = "Deny";
-    public static final String PERMIT = "Permit";
-
-    public static final String AUTHORIZATION_POLICY_NAME = 
"authorization.policy";
-
-    public static final String AUTHZ_CACHE_MANAGER_CLASS = 
"authz.cache.manager.class";
-
-    public static final String AUTHZ_CACHE_ENABLED = "authz.cache.enabled";
-
-    public static final String IN_MEMORY_CACHE_SIZE = "in.memory.cache.size";
-
-    //Names of the attributes that could be passed in the AuthzToken's claims 
map.
-    public static final String USER_NAME = "userName";
-    public static final String GATEWAY_ID = "gatewayID";
-    public static final String EMAIL = "email";
-    public static final String ROLE = "role";
-
-    public static final String TRUSTED_CERT_LOCATION = "trusted.cert.location";
-    public static final String TRUSTED_CERTIFICATE_SYSTEM_PROPERTY = 
"X509_CERT_DIR";
-
-    public static final String NEWLINE = System.getProperty("line.separator");
-}

http://git-wip-us.apache.org/repos/asf/airavata-php-gateway/blob/488b772f/modules/commons/src/main/java/org/apache/airavata/common/utils/DBUtil.java
----------------------------------------------------------------------
diff --git 
a/modules/commons/src/main/java/org/apache/airavata/common/utils/DBUtil.java 
b/modules/commons/src/main/java/org/apache/airavata/common/utils/DBUtil.java
deleted file mode 100644
index bb2ff1d..0000000
--- a/modules/commons/src/main/java/org/apache/airavata/common/utils/DBUtil.java
+++ /dev/null
@@ -1,334 +0,0 @@
-/*
- *
- * Licensed to the Apache Software Foundation (ASF) under one
- * or more contributor license agreements.  See the NOTICE file
- * distributed with this work for additional information
- * regarding copyright ownership.  The ASF licenses this file
- * to you under the Apache License, Version 2.0 (the
- * "License"); you may not use this file except in compliance
- * with the License.  You may obtain a copy of the License at
- *
- *   http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing,
- * software distributed under the License is distributed on an
- * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
- * KIND, either express or implied.  See the License for the
- * specific language governing permissions and limitations
- * under the License.
- *
- */
-
-package org.apache.airavata.common.utils;
-
-import org.apache.airavata.common.exception.ApplicationSettingsException;
-import org.apache.commons.dbcp.BasicDataSource;
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
-
-import javax.sql.DataSource;
-import java.sql.*;
-import java.util.Properties;
-
-/**
- * Database lookup. Abstracts out JDBC operations.
- */
-public class DBUtil {
-
-    private String jdbcUrl;
-    private String databaseUserName;
-    private String databasePassword;
-    private String driverName;
-
-    protected static Logger log = LoggerFactory.getLogger(DBUtil.class);
-
-    private Properties properties;
-
-    public DBUtil(String jdbcUrl, String userName, String password, String 
driver) throws InstantiationException,
-            IllegalAccessException, ClassNotFoundException {
-
-        this.jdbcUrl = jdbcUrl;
-        this.databaseUserName = userName;
-        this.databasePassword = password;
-        this.driverName = driver;
-
-        init();
-    }
-
-    /**
-     * Initializes and load driver. Must be called this before calling 
anyother method.
-     * 
-     * @throws ClassNotFoundException
-     *             If DB driver is not found.
-     * @throws InstantiationException
-     *             If unable to create driver class.
-     * @throws IllegalAccessException
-     *             If security does not allow users to instantiate driver 
object.
-     */
-    private void init() throws ClassNotFoundException, InstantiationException, 
IllegalAccessException {
-        properties = new Properties();
-
-        properties.put("user", databaseUserName);
-        properties.put("password", databasePassword);
-        properties.put("characterEncoding", "ISO-8859-1");
-        properties.put("useUnicode", "true");
-
-        loadDriver();
-    }
-
-    /**
-     * Generic method to query values in the database.
-     * 
-     * @param tableName
-     *            Table name to query
-     * @param selectColumn
-     *            The column selecting
-     * @param whereValue
-     *            The condition query
-     * @return The value appropriate to the query.
-     * @throws SQLException
-     *             If an error occurred while querying
-     */
-    public String getMatchingColumnValue(String tableName, String 
selectColumn, String whereValue) throws SQLException {
-        return getMatchingColumnValue(tableName, selectColumn, selectColumn, 
whereValue);
-    }
-
-    /**
-     * Generic method to query values in the database.
-     * 
-     * @param tableName
-     *            Table name to query
-     * @param selectColumn
-     *            The column selecting
-     * @param whereColumn
-     *            The column which condition should apply
-     * @param whereValue
-     *            The condition query
-     * @return The value appropriate to the query.
-     * @throws SQLException
-     *             If an error occurred while querying
-     */
-    public String getMatchingColumnValue(String tableName, String 
selectColumn, String whereColumn, String whereValue)
-            throws SQLException {
-
-        StringBuilder stringBuilder = new StringBuilder();
-
-        stringBuilder.append("SELECT ").append(selectColumn).append(" FROM 
").append(tableName).append(" WHERE ")
-                .append(whereColumn).append(" = ?");
-
-        String sql = stringBuilder.toString();
-
-        Connection connection = getConnection();
-
-        PreparedStatement ps = connection.prepareStatement(sql);
-        ResultSet rs = null;
-
-        try {
-            ps.setString(1, whereValue);
-            rs = ps.executeQuery();
-
-            if (rs.next()) {
-                return rs.getString(1);
-            }
-
-        } finally {
-            try {
-                if (rs != null) {
-                    rs.close();
-                }
-
-                ps.close();
-                connection.close();
-
-            } catch (Exception ignore) {
-                log.error("An error occurred while closing database 
connections ", ignore);
-            }
-        }
-
-        return null;
-    }
-
-    /**
-     * Create table utility method.
-     * 
-     * @param sql
-     *            SQL to be executed.
-     * @throws SQLException
-     *             If an error occurred while creating the table.
-     */
-    public void executeSQL(String sql) throws SQLException {
-
-        Connection connection = getConnection();
-
-        PreparedStatement ps = connection.prepareStatement(sql);
-
-        try {
-            ps.executeUpdate();
-            connection.commit();
-        } finally {
-            try {
-                if (ps != null) {
-                    ps.close();
-                }
-
-                connection.close();
-
-            } catch (Exception ignore) {
-                log.error("An error occurred while closing database 
connections ", ignore);
-            }
-        }
-
-    }
-
-    private void loadDriver() throws ClassNotFoundException, 
IllegalAccessException, InstantiationException {
-        Class.forName(driverName).newInstance();
-    }
-
-    /**
-     * Gets a new DBCP data source.
-     * 
-     * @return A new data source.
-     */
-    public DataSource getDataSource() {
-        BasicDataSource ds = new BasicDataSource();
-        ds.setDriverClassName(this.driverName);
-        ds.setUsername(this.databaseUserName);
-        ds.setPassword(this.databasePassword);
-        ds.setUrl(this.jdbcUrl);
-
-        return ds;
-    }
-
-    /**
-     * Creates a new JDBC connections based on provided DBCP properties.
-     * 
-     * @return A new DB connection.
-     * @throws SQLException
-     *             If an error occurred while creating the connection.
-     */
-    public Connection getConnection() throws SQLException {
-        Connection connection = DriverManager.getConnection(jdbcUrl, 
properties);
-        connection.setAutoCommit(false);
-        return connection;
-    }
-
-    /**
-     * Utility method to close statements and connections.
-     * 
-     * @param preparedStatement
-     *            The prepared statement to close.
-     * @param connection
-     *            The connection to close.
-     */
-    public static void cleanup(PreparedStatement preparedStatement, Connection 
connection) {
-        if (preparedStatement != null) {
-            try {
-                preparedStatement.close();
-            } catch (SQLException e) {
-                log.error("Error closing prepared statement.", e);
-            }
-        }
-        if (connection != null) {
-            try {
-                connection.close();
-            } catch (SQLException e) {
-                log.error("Error closing database connection.", e);
-            }
-        }
-    }
-
-    /**
-     * Utility method to close statements and connections.
-     *
-     * @param preparedStatement
-     *            The prepared statement to close.
-     */
-    public static void cleanup(PreparedStatement preparedStatement) {
-        if (preparedStatement != null) {
-            try {
-                preparedStatement.close();
-            } catch (SQLException e) {
-                log.error("Error closing prepared statement.", e);
-            }
-        }
-    }
-
-    /**
-     * Utility method to close statements and connections.
-     *
-     * @param preparedStatement
-     *            The prepared statement to close.
-     */
-    public static void cleanup(PreparedStatement preparedStatement, ResultSet 
resultSet) {
-        if (resultSet != null) {
-            try {
-                resultSet.close();
-            } catch (SQLException e) {
-                log.error("Error closing prepared statement.", e);
-            }
-        }
-
-        cleanup(preparedStatement);
-    }
-
-    /**
-     * Cleanup the connection.
-     * @param connection The connection to close.
-     */
-    public static void cleanup(Connection connection) {
-        if (connection != null) {
-            try {
-                connection.close();
-            } catch (SQLException e) {
-                log.debug("Error closing connection.", e);
-                log.warn("Error closing connection.");
-            }
-        }
-    }
-
-    /**
-     * Mainly useful for tests.
-     * 
-     * @param tableName
-     *            The table name.
-     * @param connection
-     *            The connection to be used.
-     */
-    public static void truncate(String tableName, Connection connection) 
throws SQLException {
-
-        String sql = "delete from " + tableName;
-
-        PreparedStatement preparedStatement = connection.prepareStatement(sql);
-        preparedStatement.executeUpdate();
-
-        connection.commit();
-
-    }
-
-    /**
-     * Creates a DBUtil object based on servlet context configurations.
-     *
-     * @return DBUtil object.
-     * @throws Exception
-     * If an error occurred while reading configurations or while creating 
database object.
-     */
-    public static DBUtil getCredentialStoreDBUtil() throws 
ApplicationSettingsException, IllegalAccessException,
-            ClassNotFoundException, InstantiationException {
-        String jdbcUrl = ServerSettings.getCredentialStoreDBURL();
-        String userName = ServerSettings.getCredentialStoreDBUser();
-        String password = ServerSettings.getCredentialStoreDBPassword();
-        String driverName = ServerSettings.getCredentialStoreDBDriver();
-
-        StringBuilder stringBuilder = new StringBuilder("Starting credential 
store, connecting to database - ");
-        stringBuilder.append(jdbcUrl).append(" DB user - 
").append(userName).append(" driver name - ")
-                .append(driverName);
-
-        log.debug(stringBuilder.toString());
-
-        DBUtil dbUtil = new DBUtil(jdbcUrl, userName, password, driverName);
-        dbUtil.init();
-
-        return dbUtil;
-    }
-
-}

http://git-wip-us.apache.org/repos/asf/airavata-php-gateway/blob/488b772f/modules/commons/src/main/java/org/apache/airavata/common/utils/DatabaseTestCases.java
----------------------------------------------------------------------
diff --git 
a/modules/commons/src/main/java/org/apache/airavata/common/utils/DatabaseTestCases.java
 
b/modules/commons/src/main/java/org/apache/airavata/common/utils/DatabaseTestCases.java
deleted file mode 100644
index 6ff528d..0000000
--- 
a/modules/commons/src/main/java/org/apache/airavata/common/utils/DatabaseTestCases.java
+++ /dev/null
@@ -1,123 +0,0 @@
-/*
- *
- * Licensed to the Apache Software Foundation (ASF) under one
- * or more contributor license agreements.  See the NOTICE file
- * distributed with this work for additional information
- * regarding copyright ownership.  The ASF licenses this file
- * to you under the Apache License, Version 2.0 (the
- * "License"); you may not use this file except in compliance
- * with the License.  You may obtain a copy of the License at
- *
- *   http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing,
- * software distributed under the License is distributed on an
- * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
- * KIND, either express or implied.  See the License for the
- * specific language governing permissions and limitations
- * under the License.
- *
- */
-
-package org.apache.airavata.common.utils;
-
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
-
-import java.sql.Connection;
-import java.sql.SQLException;
-
-/**
- * An abstraction for database specific test classes. This will create a 
database and provides methods to execute SQLs.
- */
-public class DatabaseTestCases {
-
-    private static final Logger logger = 
LoggerFactory.getLogger(DatabaseTestCases.class);
-
-    protected static String hostAddress = "localhost";
-    protected static int port = 20000;
-    protected static String userName = "admin";
-    protected static String password = "admin";
-    protected static String driver = "org.apache.derby.jdbc.ClientDriver";
-
-    public static String getHostAddress() {
-        return hostAddress;
-    }
-
-    public static int getPort() {
-        return port;
-    }
-
-    public static String getUserName() {
-        return userName;
-    }
-
-    public static String getPassword() {
-        return password;
-    }
-
-    public static String getDriver() {
-        return driver;
-    }
-
-    public static String getJDBCUrl() {
-        return new 
StringBuilder().append("jdbc:derby://").append(getHostAddress()).append(":").append(getPort())
-                
.append("/experiment_catalog;create=true;user=").append(getUserName()).append(";password=")
-                .append(getPassword()).toString();
-    }
-
-    public static void waitTillServerStarts() {
-        DBUtil dbUtil = null;
-
-        try {
-            dbUtil = new DBUtil(getJDBCUrl(), getUserName(), getPassword(), 
getDriver());
-        } catch (Exception e) {
-           // ignore
-        }
-
-        Connection connection = null;
-        try {
-            if (dbUtil != null) {
-                connection = dbUtil.getConnection();
-            }
-        } catch (Throwable e) {
-            // ignore
-        }
-
-        while (connection == null) {
-            try {
-                Thread.sleep(1000);
-                try {
-                    if (dbUtil != null) {
-                        connection = dbUtil.getConnection();
-                    }
-                } catch (SQLException e) {
-                    // ignore
-                }
-            } catch (InterruptedException e) {
-                // ignore
-            }
-        }
-
-    }
-
-    public static void executeSQL(String sql) throws Exception {
-        DBUtil dbUtil = new DBUtil(getJDBCUrl(), getUserName(), getPassword(), 
getDriver());
-        dbUtil.executeSQL(sql);
-    }
-
-    public DBUtil getDbUtil () throws Exception {
-        return new DBUtil(getJDBCUrl(), getUserName(), getPassword(), 
getDriver());
-
-    }
-
-    public Connection getConnection() throws Exception {
-
-        DBUtil dbUtil =  getDbUtil ();
-        Connection connection = dbUtil.getConnection();
-        connection.setAutoCommit(true);
-        return connection;
-
-    }
-
-}

http://git-wip-us.apache.org/repos/asf/airavata-php-gateway/blob/488b772f/modules/commons/src/main/java/org/apache/airavata/common/utils/DefaultKeyStorePasswordCallback.java
----------------------------------------------------------------------
diff --git 
a/modules/commons/src/main/java/org/apache/airavata/common/utils/DefaultKeyStorePasswordCallback.java
 
b/modules/commons/src/main/java/org/apache/airavata/common/utils/DefaultKeyStorePasswordCallback.java
deleted file mode 100644
index fc7792b..0000000
--- 
a/modules/commons/src/main/java/org/apache/airavata/common/utils/DefaultKeyStorePasswordCallback.java
+++ /dev/null
@@ -1,55 +0,0 @@
-/*
- *
- * Licensed to the Apache Software Foundation (ASF) under one
- * or more contributor license agreements.  See the NOTICE file
- * distributed with this work for additional information
- * regarding copyright ownership.  The ASF licenses this file
- * to you under the Apache License, Version 2.0 (the
- * "License"); you may not use this file except in compliance
- * with the License.  You may obtain a copy of the License at
- *
- *   http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing,
- * software distributed under the License is distributed on an
- * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
- * KIND, either express or implied.  See the License for the
- * specific language governing permissions and limitations
- * under the License.
- *
- */
-
-package org.apache.airavata.common.utils;
-
-import org.apache.airavata.common.exception.ApplicationSettingsException;
-
-/**
- * User: AmilaJ ([email protected])
- * Date: 12/29/13
- * Time: 12:10 PM
- */
-
-public class DefaultKeyStorePasswordCallback implements 
KeyStorePasswordCallback {
-
-    public DefaultKeyStorePasswordCallback(){
-
-    }
-
-    @Override
-    public char[] getStorePassword() {
-        try {
-            return 
ApplicationSettings.getCredentialStoreKeyStorePassword().toCharArray();
-        } catch (ApplicationSettingsException e) {
-            throw new RuntimeException(e);
-        }
-    }
-
-    @Override
-    public char[] getSecretKeyPassPhrase(String keyAlias) {
-        try {
-            return 
ApplicationSettings.getCredentialStoreKeyStorePassword().toCharArray();
-        } catch (ApplicationSettingsException e) {
-            throw new RuntimeException(e);
-        }
-    }
-}

http://git-wip-us.apache.org/repos/asf/airavata-php-gateway/blob/488b772f/modules/commons/src/main/java/org/apache/airavata/common/utils/DerbyUtil.java
----------------------------------------------------------------------
diff --git 
a/modules/commons/src/main/java/org/apache/airavata/common/utils/DerbyUtil.java 
b/modules/commons/src/main/java/org/apache/airavata/common/utils/DerbyUtil.java
deleted file mode 100644
index 4fb35b9..0000000
--- 
a/modules/commons/src/main/java/org/apache/airavata/common/utils/DerbyUtil.java
+++ /dev/null
@@ -1,114 +0,0 @@
-/*
- *
- * Licensed to the Apache Software Foundation (ASF) under one
- * or more contributor license agreements.  See the NOTICE file
- * distributed with this work for additional information
- * regarding copyright ownership.  The ASF licenses this file
- * to you under the Apache License, Version 2.0 (the
- * "License"); you may not use this file except in compliance
- * with the License.  You may obtain a copy of the License at
- *
- *   http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing,
- * software distributed under the License is distributed on an
- * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
- * KIND, either express or implied.  See the License for the
- * specific language governing permissions and limitations
- * under the License.
- *
- */
-
-package org.apache.airavata.common.utils;
-
-import java.io.IOException;
-import java.io.PrintWriter;
-import java.net.InetAddress;
-import java.sql.DriverManager;
-import org.apache.derby.drda.NetworkServerControl;
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
-
-import java.sql.SQLException;
-
-/**
- * This class includes methods to start stop Derby database. Mainly user for 
tests.
- */
-public class DerbyUtil {
-
-    private static NetworkServerControl server;
-
-    private static final Logger logger = 
LoggerFactory.getLogger(DerbyUtil.class);
-
-    public static final String DERBY_SERVER_MODE_SYS_PROPERTY = 
"derby.drda.startNetworkServer";
-
-    /**
-     * Starts new derby server instance with given configurations.
-     * 
-     * @param hostAddress
-     *            The host address start the server.
-     * @param port
-     *            The port number which server is starting.
-     * @param user
-     *            JDBC user name.
-     * @param password
-     *            JDBC password.
-     * @throws Exception
-     *             If an error occurred while starting the server.
-     */
-    public static void startDerbyInServerMode(String hostAddress, int port, 
String user, String password)
-            throws Exception {
-        PrintWriter consoleWriter = null;
-
-        try {
-            System.setProperty(DERBY_SERVER_MODE_SYS_PROPERTY, "true");
-            server = new 
NetworkServerControl(InetAddress.getByName(hostAddress), port, user, password);
-            consoleWriter = new PrintWriter(System.out, true);
-            server.start(consoleWriter);
-
-        } catch (IOException e) {
-            logger.error("Unable to start Apache derby in the server mode! 
Check whether "
-                    + "specified port is available", e);
-            throw e;
-        } catch (Exception e) {
-            logger.error("Unable to start Apache derby in the server mode! 
Check whether "
-                    + "specified port is available", e);
-            throw e;
-        } finally {
-
-            if (consoleWriter != null) {
-                consoleWriter.close();
-            }
-
-        }
-
-    }
-
-    /**
-     * Starts derby server in embedded mode.
-     * 
-     * @throws ClassNotFoundException
-     *             If specified driver not found in the class path.
-     * @throws SQLException
-     *             If an error occurred while creat
-     */
-    public static void startDerbyInEmbeddedMode() throws 
ClassNotFoundException, SQLException {
-        Class.forName("org.apache.derby.jdbc.EmbeddedDriver");
-        
DriverManager.getConnection("jdbc:derby:memory:unit-testing-jpa;create=true").close();
-    }
-
-    /**
-     * Shuts down the server.
-     * 
-     * @throws Exception
-     *             If an error occurred while shutting down.
-     */
-    public static void stopDerbyServer() throws Exception {
-        try {
-            server.shutdown();
-        } catch (Exception e) {
-            logger.error("Error shutting down derby server.", e);
-            throw e;
-        }
-    }
-}

http://git-wip-us.apache.org/repos/asf/airavata-php-gateway/blob/488b772f/modules/commons/src/main/java/org/apache/airavata/common/utils/ExecutionMode.java
----------------------------------------------------------------------
diff --git 
a/modules/commons/src/main/java/org/apache/airavata/common/utils/ExecutionMode.java
 
b/modules/commons/src/main/java/org/apache/airavata/common/utils/ExecutionMode.java
deleted file mode 100644
index cf17ef0..0000000
--- 
a/modules/commons/src/main/java/org/apache/airavata/common/utils/ExecutionMode.java
+++ /dev/null
@@ -1,28 +0,0 @@
-/*
- *
- * Licensed to the Apache Software Foundation (ASF) under one
- * or more contributor license agreements.  See the NOTICE file
- * distributed with this work for additional information
- * regarding copyright ownership.  The ASF licenses this file
- * to you under the Apache License, Version 2.0 (the
- * "License"); you may not use this file except in compliance
- * with the License.  You may obtain a copy of the License at
- *
- *   http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing,
- * software distributed under the License is distributed on an
- * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
- * KIND, either express or implied.  See the License for the
- * specific language governing permissions and limitations
- * under the License.
- *
- */
-
-package org.apache.airavata.common.utils;
-
-public enum ExecutionMode {
-       CLIENT,
-       SERVER,
-       UNKNOWN
-}

http://git-wip-us.apache.org/repos/asf/airavata-php-gateway/blob/488b772f/modules/commons/src/main/java/org/apache/airavata/common/utils/IOUtil.java
----------------------------------------------------------------------
diff --git 
a/modules/commons/src/main/java/org/apache/airavata/common/utils/IOUtil.java 
b/modules/commons/src/main/java/org/apache/airavata/common/utils/IOUtil.java
deleted file mode 100644
index 9d1d7dd..0000000
--- a/modules/commons/src/main/java/org/apache/airavata/common/utils/IOUtil.java
+++ /dev/null
@@ -1,209 +0,0 @@
-/*
- *
- * Licensed to the Apache Software Foundation (ASF) under one
- * or more contributor license agreements.  See the NOTICE file
- * distributed with this work for additional information
- * regarding copyright ownership.  The ASF licenses this file
- * to you under the Apache License, Version 2.0 (the
- * "License"); you may not use this file except in compliance
- * with the License.  You may obtain a copy of the License at
- *
- *   http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing,
- * software distributed under the License is distributed on an
- * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
- * KIND, either express or implied.  See the License for the
- * specific language governing permissions and limitations
- * under the License.
- *
- */
-
-package org.apache.airavata.common.utils;
-
-import java.io.ByteArrayOutputStream;
-import java.io.File;
-import java.io.FileInputStream;
-import java.io.FileOutputStream;
-import java.io.FileReader;
-import java.io.FileWriter;
-import java.io.IOException;
-import java.io.InputStream;
-import java.io.InputStreamReader;
-import java.io.Reader;
-import java.io.Writer;
-
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
-
-public class IOUtil {
-
-    private static final Logger logger = LoggerFactory.getLogger(IOUtil.class);
-
-    /**
-     * @param path
-     * @param content
-     * @throws IOException
-     */
-    public static void writeToFile(String content, String path) throws 
IOException {
-        logger.debug("Path:" + path + " Content:" + content);
-
-        FileWriter fw = new FileWriter(path);
-        writeToWriter(content, fw);
-    }
-
-    /**
-     * @param content
-     * @param file
-     * @throws IOException
-     */
-    public static void writeToFile(String content, File file) throws 
IOException {
-        FileWriter fw = new FileWriter(file);
-        writeToWriter(content, fw);
-    }
-
-    /**
-     * @param inputStream
-     * @param file
-     * @throws IOException
-     */
-    public static void writeToFile(InputStream inputStream, File file) throws 
IOException {
-        FileOutputStream outputStream = new FileOutputStream(file);
-        byte[] bytes = new byte[1024];
-        int len;
-        while ((len = inputStream.read(bytes)) != -1) {
-            outputStream.write(bytes, 0, len);
-        }
-        outputStream.close();
-    }
-
-    /**
-     * Writes a specified String to a specified Writer.
-     * 
-     * @param content
-     *            The content to write
-     * @param writer
-     *            The specified Writer
-     * 
-     * @throws IOException
-     */
-    public static void writeToWriter(String content, Writer writer) throws 
IOException {
-        writer.write(content);
-        writer.close();
-    }
-
-    /**
-     * Returns the content of a specified file as a String.
-     * 
-     * @param path
-     * @return the content of a specified file as a String
-     * @throws IOException
-     */
-    public static String readFileToString(String path) throws IOException {
-        FileReader read = new FileReader(path);
-        return readToString(read);
-    }
-
-    /**
-     * Returns the content of a specified file as a String.
-     * 
-     * @param file
-     * @return the content of a specified file as a String
-     * @throws IOException
-     */
-    public static String readFileToString(File file) throws IOException {
-        FileReader reader = new FileReader(file);
-        return readToString(reader);
-    }
-
-    /**
-     * Returns a String read from a specified InputStream.
-     * 
-     * @param stream
-     *            The specified InputStream
-     * @return The String read from the specified InputStream
-     * @throws IOException
-     */
-    public static String readToString(InputStream stream) throws IOException {
-        return readToString(new InputStreamReader(stream));
-    }
-
-    /**
-     * Returns a String read from a specified Reader.
-     * 
-     * @param reader
-     *            The specified Reader
-     * @return The String read from the specified Reader
-     * @throws IOException
-     */
-    public static String readToString(Reader reader) throws IOException {
-        char[] cbuf = new char[1024];
-        StringBuilder sbuf = new StringBuilder();
-        int len;
-        while ((len = reader.read(cbuf)) != -1) {
-            sbuf.append(cbuf, 0, len);
-        }
-        return sbuf.toString();
-    }
-
-    /**
-     * @param file
-     * @return The byte array
-     * @throws IOException
-     */
-    public static byte[] readToByteArray(File file) throws IOException {
-        return readToByteArray(new FileInputStream(file));
-    }
-
-    /**
-     * @param inputStream
-     * @return The byte array.
-     * @throws IOException
-     */
-    public static byte[] readToByteArray(InputStream inputStream) throws 
IOException {
-        byte[] buf = new byte[1024];
-        ByteArrayOutputStream byteArrayStream = new ByteArrayOutputStream();
-        int len;
-        while ((len = inputStream.read(buf)) != -1) {
-            byteArrayStream.write(buf, 0, len);
-        }
-        return byteArrayStream.toByteArray();
-    }
-
-    /**
-     * @param path
-     * @return <code>true</code> if and only if the file or directory is 
successfully deleted; <code>false</code>
-     *         otherwise
-     */
-    public static boolean deleteDirectory(File path) {
-        if (path.exists()) {
-            File[] files = path.listFiles();
-            for (File file : files) {
-                if (file.isDirectory()) {
-                    deleteDirectory(file);
-                } else {
-                    file.delete();
-                }
-            }
-        }
-        return path.delete();
-    }
-
-    /**
-     * Gets the extension of a specified file.
-     * 
-     * @param file
-     *            the specified file.
-     * @return the extension of the file in lower case if there is an 
extension; null otherwise
-     */
-    public static String getExtension(File file) {
-        String ext = null;
-        String name = file.getName();
-
-        int index = name.lastIndexOf('.');
-        if (index > 0 && index < name.length() - 1) {
-            ext = name.substring(index + 1).toLowerCase();
-        }
-        return ext;
-    }
-}
\ No newline at end of file

http://git-wip-us.apache.org/repos/asf/airavata-php-gateway/blob/488b772f/modules/commons/src/main/java/org/apache/airavata/common/utils/IServer.java
----------------------------------------------------------------------
diff --git 
a/modules/commons/src/main/java/org/apache/airavata/common/utils/IServer.java 
b/modules/commons/src/main/java/org/apache/airavata/common/utils/IServer.java
deleted file mode 100644
index 867eb45..0000000
--- 
a/modules/commons/src/main/java/org/apache/airavata/common/utils/IServer.java
+++ /dev/null
@@ -1,51 +0,0 @@
-/*
- *
- * Licensed to the Apache Software Foundation (ASF) under one
- * or more contributor license agreements.  See the NOTICE file
- * distributed with this work for additional information
- * regarding copyright ownership.  The ASF licenses this file
- * to you under the Apache License, Version 2.0 (the
- * "License"); you may not use this file except in compliance
- * with the License.  You may obtain a copy of the License at
- *
- *   http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing,
- * software distributed under the License is distributed on an
- * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
- * KIND, either express or implied.  See the License for the
- * specific language governing permissions and limitations
- * under the License.
- *
- */
-
-package org.apache.airavata.common.utils;
-
-import java.util.Calendar;
-import java.util.Date;
-
-public interface IServer {
-       public enum ServerStatus{
-               STOPING,
-               STOPPED,
-               STARTING,
-               STARTED,
-               FAILED;
-               public void updateTime(){
-                       now=Calendar.getInstance().getTime();
-               }
-               private Date now;
-               public Date getTime(){
-                       return now;
-               }
-       }
-       public String getName();
-       public String getVersion();
-       public void start() throws Exception;
-       public void stop() throws Exception;
-       public void restart() throws Exception;
-       public void configure() throws Exception;
-       public ServerStatus getStatus() throws Exception;
-//     public void waitForServerToStart() throws Exception;
-//     public void waitForServerToStop() throws Exception;
-}

http://git-wip-us.apache.org/repos/asf/airavata-php-gateway/blob/488b772f/modules/commons/src/main/java/org/apache/airavata/common/utils/JSONUtil.java
----------------------------------------------------------------------
diff --git 
a/modules/commons/src/main/java/org/apache/airavata/common/utils/JSONUtil.java 
b/modules/commons/src/main/java/org/apache/airavata/common/utils/JSONUtil.java
deleted file mode 100644
index 222e5a2..0000000
--- 
a/modules/commons/src/main/java/org/apache/airavata/common/utils/JSONUtil.java
+++ /dev/null
@@ -1,158 +0,0 @@
-/*
- *
- * Licensed to the Apache Software Foundation (ASF) under one
- * or more contributor license agreements.  See the NOTICE file
- * distributed with this work for additional information
- * regarding copyright ownership.  The ASF licenses this file
- * to you under the Apache License, Version 2.0 (the
- * "License"); you may not use this file except in compliance
- * with the License.  You may obtain a copy of the License at
- *
- *   http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing,
- * software distributed under the License is distributed on an
- * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
- * KIND, either express or implied.  See the License for the
- * specific language governing permissions and limitations
- * under the License.
- *
- */
-
-package org.apache.airavata.common.utils;
-
-import com.google.gson.Gson;
-import com.google.gson.GsonBuilder;
-import com.google.gson.JsonArray;
-import com.google.gson.JsonElement;
-import com.google.gson.JsonObject;
-import com.google.gson.JsonParser;
-import com.google.gson.JsonPrimitive;
-import com.google.gson.stream.JsonReader;
-
-import java.io.File;
-import java.io.FileReader;
-import java.io.IOException;
-import java.io.Reader;
-import java.util.Map;
-import java.util.Set;
-
-public class JSONUtil {
-
-
-    public static void saveJSON(JsonElement jsonElement, File file) throws 
IOException {
-        IOUtil.writeToFile(jsonElementToString(jsonElement), file);
-    }
-
-    public static JsonObject stringToJSONObject(String workflowString) {
-        JsonParser parser = new JsonParser();
-        return (JsonObject) parser.parse(workflowString);
-    }
-
-    public static JsonObject loadJSON(File file) throws IOException {
-        return loadJSON(new FileReader(file));
-    }
-
-    public static JsonObject loadJSON(Reader reader) throws IOException {
-       JsonParser parser = new JsonParser();
-       JsonElement jsonElement = parser.parse(reader);
-        if (jsonElement instanceof JsonObject) {
-            return (JsonObject) jsonElement;
-        } else {
-            throw new RuntimeException("Error while loading Json from file");
-        }
-
-    }
-
-    public static String jsonElementToString(JsonElement jsonElement) {
-        Gson gson = new GsonBuilder().setPrettyPrinting().create();
-        return gson.toJson(jsonElement);
-    }
-
-    public static boolean isEqual(JsonObject originalJsonObject, JsonObject 
newJsonObject) {
-        // TODO - Implement this method
-        if (originalJsonObject == null && newJsonObject == null) {
-            return true;
-        }else if (originalJsonObject == null || newJsonObject == null) {
-            return false;
-        } else {
-            // check the number of childs
-            Set<Map.Entry<String , JsonElement>> entrySetOfOriginalJson =  
originalJsonObject.entrySet();
-            Set<Map.Entry<String , JsonElement>> entrySetOfNewJson =  
newJsonObject.entrySet();
-            if (entrySetOfOriginalJson.size() != entrySetOfNewJson.size()) {
-                return false;
-            }
-
-            for (Map.Entry<String, JsonElement> keyString : 
entrySetOfOriginalJson) {
-                JsonElement valueOrig = keyString.getValue();
-                JsonElement valueNew = newJsonObject.get(keyString.getKey());
-                if (valueOrig instanceof JsonObject && valueNew instanceof 
JsonObject &&
-                        !isEqual((JsonObject) valueOrig, (JsonObject) 
valueNew)) {
-                    return false;
-                }else if (valueOrig instanceof JsonArray && valueNew 
instanceof JsonArray &&
-                        !isEqual((JsonArray) valueOrig, (JsonArray) valueNew)) 
{
-                    return false;
-                }else if (valueOrig instanceof JsonPrimitive && valueNew 
instanceof JsonPrimitive &&
-                        !isEqual((JsonPrimitive) valueOrig, (JsonPrimitive) 
valueNew)) {
-                    return false;
-                }
-            }
-        }
-        return true;
-    }
-
-    private static boolean isEqual(JsonArray arrayOriginal, JsonArray 
arrayNew) {
-        if (arrayOriginal == null && arrayNew == null) {
-            return true;
-        }else if (arrayOriginal == null || arrayNew == null) {
-            return false;
-        }else {
-            // check the number of element
-            if (arrayOriginal.size() != arrayNew.size()) {
-                return false;
-            }else if (arrayOriginal.size() == 0) {
-                return true;
-            } else {
-                for (int i = 0; i < arrayOriginal.size(); i++) {
-                    JsonElement valueOrig = arrayOriginal.get(i);
-                    JsonElement valueNew = arrayNew.get(i);
-                    if (valueOrig instanceof JsonObject && valueNew instanceof 
JsonObject) {
-                        if (!isEqual((JsonObject) valueOrig, (JsonObject) 
valueNew)) {
-                            return false;
-                        }
-                    }else if (valueOrig instanceof JsonPrimitive && valueNew 
instanceof JsonPrimitive) {
-                        if (!isEqual((JsonPrimitive) valueOrig, 
(JsonPrimitive) valueNew)) {
-                            return false;
-                        }
-                    }
-                }
-            }
-        }
-        return true;
-    }
-
-    private static boolean isEqual(JsonPrimitive primitiveOrig, JsonPrimitive 
primitiveNew) {
-        if (primitiveOrig == null && primitiveNew == null) {
-            return true;
-        }else if (primitiveOrig == null || primitiveNew == null) {
-            return false;
-        } else {
-            if (primitiveOrig.isString() && primitiveNew.isString()){
-                
if(!primitiveOrig.getAsString().equals(primitiveNew.getAsString())) {
-                    return false;
-                }
-            }else if (primitiveOrig.isBoolean() && primitiveNew.isBoolean()) {
-                if 
((Boolean.valueOf(primitiveOrig.getAsBoolean()).compareTo(primitiveNew.getAsBoolean())
 != 0)) {
-                    return false;
-                }
-            }else if (primitiveOrig.isNumber() && primitiveNew.isNumber() ) {
-                if (new 
Double(primitiveOrig.getAsDouble()).compareTo(primitiveNew.getAsDouble()) != 0) 
{
-                    return false;
-                }
-            }else {
-                return primitiveOrig.isJsonNull() && primitiveNew.isJsonNull();
-            }
-        }
-        return true;
-    }
-}

http://git-wip-us.apache.org/repos/asf/airavata-php-gateway/blob/488b772f/modules/commons/src/main/java/org/apache/airavata/common/utils/KeyStorePasswordCallback.java
----------------------------------------------------------------------
diff --git 
a/modules/commons/src/main/java/org/apache/airavata/common/utils/KeyStorePasswordCallback.java
 
b/modules/commons/src/main/java/org/apache/airavata/common/utils/KeyStorePasswordCallback.java
deleted file mode 100644
index bafaff3..0000000
--- 
a/modules/commons/src/main/java/org/apache/airavata/common/utils/KeyStorePasswordCallback.java
+++ /dev/null
@@ -1,50 +0,0 @@
-package org.apache.airavata.common.utils;/*
- *
- * Licensed to the Apache Software Foundation (ASF) under one
- * or more contributor license agreements.  See the NOTICE file
- * distributed with this work for additional information
- * regarding copyright ownership.  The ASF licenses this file
- * to you under the Apache License, Version 2.0 (the
- * "License"); you may not use this file except in compliance
- * with the License.  You may obtain a copy of the License at
- *
- *   http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing,
- * software distributed under the License is distributed on an
- * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
- * KIND, either express or implied.  See the License for the
- * specific language governing permissions and limitations
- * under the License.
- *
- */
-
-/**
- * User: AmilaJ ([email protected])
- * Date: 10/11/13
- * Time: 11:30 AM
- */
-
-/**
- * An interface to get keystore password in a form of a callback.
- */
-public interface KeyStorePasswordCallback {
-
-    /**
-     * Caller should implement the interface. Should return the password for
-     * the keystore. This should return the keystore password. i.e. password 
used to open the keystore.
-     * Instead of the actual file.
-     * @return The password to open the keystore.
-     */
-    char[] getStorePassword() throws RuntimeException;
-
-    /**
-     * Caller should implement the interface. Should return the pass phrase for
-     * the secret key.
-     * Instead of the actual file.
-     * @param keyAlias The alias of the key
-     * @return The pass phrase for the secret key.
-     */
-    char[] getSecretKeyPassPhrase(String keyAlias);
-
-}

http://git-wip-us.apache.org/repos/asf/airavata-php-gateway/blob/488b772f/modules/commons/src/main/java/org/apache/airavata/common/utils/LocalEventPublisher.java
----------------------------------------------------------------------
diff --git 
a/modules/commons/src/main/java/org/apache/airavata/common/utils/LocalEventPublisher.java
 
b/modules/commons/src/main/java/org/apache/airavata/common/utils/LocalEventPublisher.java
deleted file mode 100644
index 2b5a1d8..0000000
--- 
a/modules/commons/src/main/java/org/apache/airavata/common/utils/LocalEventPublisher.java
+++ /dev/null
@@ -1,47 +0,0 @@
-/*
- *
- * Licensed to the Apache Software Foundation (ASF) under one
- * or more contributor license agreements.  See the NOTICE file
- * distributed with this work for additional information
- * regarding copyright ownership.  The ASF licenses this file
- * to you under the Apache License, Version 2.0 (the
- * "License"); you may not use this file except in compliance
- * with the License.  You may obtain a copy of the License at
- *
- *   http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing,
- * software distributed under the License is distributed on an
- * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
- * KIND, either express or implied.  See the License for the
- * specific language governing permissions and limitations
- * under the License.
- *
-*/
-package org.apache.airavata.common.utils;
-
-import com.google.common.eventbus.EventBus;
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
-
-public class LocalEventPublisher {
-    private final static Logger logger = 
LoggerFactory.getLogger(LocalEventPublisher.class);
-    private EventBus eventBus;
-    
-    public LocalEventPublisher(EventBus eventBus) {
-        this.eventBus = eventBus;
-    }
-
-    public void registerListener(Object listener) {
-        eventBus.register(listener);
-    }
-    
-    public void unregisterListener(Object listener) {
-        eventBus.unregister(listener);
-    }
-
-    public void publish(Object o) {
-        eventBus.post(o);
-    }
-
-}

http://git-wip-us.apache.org/repos/asf/airavata-php-gateway/blob/488b772f/modules/commons/src/main/java/org/apache/airavata/common/utils/NameValidator.java
----------------------------------------------------------------------
diff --git 
a/modules/commons/src/main/java/org/apache/airavata/common/utils/NameValidator.java
 
b/modules/commons/src/main/java/org/apache/airavata/common/utils/NameValidator.java
deleted file mode 100644
index 98530cf..0000000
--- 
a/modules/commons/src/main/java/org/apache/airavata/common/utils/NameValidator.java
+++ /dev/null
@@ -1,70 +0,0 @@
-/*
- *
- * Licensed to the Apache Software Foundation (ASF) under one
- * or more contributor license agreements.  See the NOTICE file
- * distributed with this work for additional information
- * regarding copyright ownership.  The ASF licenses this file
- * to you under the Apache License, Version 2.0 (the
- * "License"); you may not use this file except in compliance
- * with the License.  You may obtain a copy of the License at
- *
- *   http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing,
- * software distributed under the License is distributed on an
- * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
- * KIND, either express or implied.  See the License for the
- * specific language governing permissions and limitations
- * under the License.
- *
- */
-
-package org.apache.airavata.common.utils;
-
-import java.util.regex.Matcher;
-import java.util.regex.Pattern;
-
-public class NameValidator {
-
-    /**
-     * @param name
-     * @return Is it valid name?
-     */
-    public static boolean validate(String name) {
-        // Set the name pattern string
-        Pattern p = 
Pattern.compile("([a-zA-Z]){1,}([0-9]|_|\\.|[a-zA-Z]){0,}$");
-
-        // Match the given string with the pattern
-        Matcher m = p.matcher(name);
-
-        // Check whether match is found
-        boolean matchFound = m.matches();
-
-        return matchFound;
-    }
-
-    /**
-     * @param args
-     * @Description some quick tests
-     */
-    public static void main(String[] args) {
-        System.out.println(validate("abc90_90abc")); // true
-
-        System.out.println(validate("abc_abc_123")); // true
-
-        System.out.println(validate("abc_abc_")); // true
-
-        System.out.println(validate("abc_abc")); // true
-
-        System.out.println(validate("abc.abc")); // true
-
-        System.out.println(validate("9abc_abc")); // false, name cannot start 
with number
-
-        System.out.println(validate("_abc_abc")); // false, name cannot start 
with "_"
-
-        System.out.println(validate("\\abc_abc")); // false, name cannot start 
with "\"
-
-        System.out.println(validate("abc\\_abc")); // false, name cannot 
contain "\"
-    }
-
-}
\ No newline at end of file

http://git-wip-us.apache.org/repos/asf/airavata-php-gateway/blob/488b772f/modules/commons/src/main/java/org/apache/airavata/common/utils/Pair.java
----------------------------------------------------------------------
diff --git 
a/modules/commons/src/main/java/org/apache/airavata/common/utils/Pair.java 
b/modules/commons/src/main/java/org/apache/airavata/common/utils/Pair.java
deleted file mode 100644
index ee24360..0000000
--- a/modules/commons/src/main/java/org/apache/airavata/common/utils/Pair.java
+++ /dev/null
@@ -1,79 +0,0 @@
-/*
- *
- * Licensed to the Apache Software Foundation (ASF) under one
- * or more contributor license agreements.  See the NOTICE file
- * distributed with this work for additional information
- * regarding copyright ownership.  The ASF licenses this file
- * to you under the Apache License, Version 2.0 (the
- * "License"); you may not use this file except in compliance
- * with the License.  You may obtain a copy of the License at
- *
- *   http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing,
- * software distributed under the License is distributed on an
- * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
- * KIND, either express or implied.  See the License for the
- * specific language governing permissions and limitations
- * under the License.
- *
- */
-
-package org.apache.airavata.common.utils;
-
-public class Pair<L, R> {
-
-    private L left;
-
-    private R right;
-
-    /**
-     * Constructs a Pair.
-     * 
-     * @param left
-     * @param right
-     */
-    public Pair(L left, R right) {
-        this.left = left;
-        this.right = right;
-    }
-
-    /**
-     * Returns the left.
-     * 
-     * @return The left
-     */
-    public L getLeft() {
-        return this.left;
-    }
-
-    /**
-     * Sets left.
-     * 
-     * @param left
-     *            The left to set.
-     */
-    public void setLeft(L left) {
-        this.left = left;
-    }
-
-    /**
-     * Returns the right.
-     * 
-     * @return The right
-     */
-    public R getRight() {
-        return this.right;
-    }
-
-    /**
-     * Sets right.
-     * 
-     * @param right
-     *            The right to set.
-     */
-    public void setRight(R right) {
-        this.right = right;
-    }
-
-}
\ No newline at end of file

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