Author: donsez
Date: Wed Jul 11 14:26:24 2007
New Revision: 555402
URL: http://svn.apache.org/viewvc?view=rev&rev=555402
Log:
creation of the monitor.sample.usagemonitor, a bundle providing a sample of
Monitorable service
Added:
felix/sandbox/donsez/monitor.sample.usagemonitor/
felix/sandbox/donsez/monitor.sample.usagemonitor/doc/
felix/sandbox/donsez/monitor.sample.usagemonitor/doc/readme.html (with
props)
felix/sandbox/donsez/monitor.sample.usagemonitor/pom.xml (with props)
felix/sandbox/donsez/monitor.sample.usagemonitor/src/
felix/sandbox/donsez/monitor.sample.usagemonitor/src/main/
felix/sandbox/donsez/monitor.sample.usagemonitor/src/main/java/
felix/sandbox/donsez/monitor.sample.usagemonitor/src/main/java/org/
felix/sandbox/donsez/monitor.sample.usagemonitor/src/main/java/org/apache/
felix/sandbox/donsez/monitor.sample.usagemonitor/src/main/java/org/apache/felix/
felix/sandbox/donsez/monitor.sample.usagemonitor/src/main/java/org/apache/felix/sandbox/
felix/sandbox/donsez/monitor.sample.usagemonitor/src/main/java/org/apache/felix/sandbox/monitor/
felix/sandbox/donsez/monitor.sample.usagemonitor/src/main/java/org/apache/felix/sandbox/monitor/sample/
felix/sandbox/donsez/monitor.sample.usagemonitor/src/main/java/org/apache/felix/sandbox/monitor/sample/Activator.java
(with props)
felix/sandbox/donsez/monitor.sample.usagemonitor/src/main/java/org/apache/felix/sandbox/monitor/sample/cpumonitor/
felix/sandbox/donsez/monitor.sample.usagemonitor/src/main/java/org/apache/felix/sandbox/monitor/sample/cpumonitor/CPUUsageMonitor.java
(with props)
felix/sandbox/donsez/monitor.sample.usagemonitor/src/main/java/org/apache/felix/sandbox/monitor/sample/osmemmonitor/
felix/sandbox/donsez/monitor.sample.usagemonitor/src/main/java/org/apache/felix/sandbox/monitor/sample/osmemmonitor/OSMemoryUsageMonitor.java
(with props)
Added: felix/sandbox/donsez/monitor.sample.usagemonitor/doc/readme.html
URL:
http://svn.apache.org/viewvc/felix/sandbox/donsez/monitor.sample.usagemonitor/doc/readme.html?view=auto&rev=555402
==============================================================================
--- felix/sandbox/donsez/monitor.sample.usagemonitor/doc/readme.html (added)
+++ felix/sandbox/donsez/monitor.sample.usagemonitor/doc/readme.html Wed Jul 11
14:26:24 2007
@@ -0,0 +1,56 @@
+<!DOCTYPE doctype PUBLIC "-//w3c//dtd html 4.0 transitional//en">
+<html>
+<head>
+ <meta http-equiv="Content-Type"
+ content="text/html; charset=iso-8859-1">
+ <title>Memory Monitor</title>
+</head>
+<body alink="#ff0000" vlink="#551a8b" link="#0000ee" bgcolor="#ffffff"
+ text="#000000">
+<h1><i>Usage Monitor</i></h1>
+
+<p><b>Description</b><br>
+This bundle provides a sample of a Monitorable service (Chapter 119 Monitor
Admin Service Specification Version 1.0).<br>
+It monitors memory and cpu of the underluying OS for Linux.
+</p>
+</font>
+
+<p><b>Contributor(s)</b><br>
+Apache Felix Project Team
+</p>
+
+<p><b>License</b><br>
+ASL2
+</p>
+
+<p><b>Services</b><br>
+<ul>
+<li>org.osgi.service.monitor.Monitorable</li>
+</ul>
+</p>
+
+
+<p><b>Provisions</b><br>
+None
+</p>
+
+<p id="doc"><b>Documentation</b><br>
+<ul>
+<li><a href=".">general</a></li>
+<li><a href="api">JavaDoc</a></li>
+</ul>
+</p>
+
+
+<p id="todolist"><b>TODOLIST</b><br>
+TODO
+</p>
+
+<p id="link"><b>Links</b><br>
+<ul>
+</ul>
+</p>
+
+
+</body>
+</html>
Propchange: felix/sandbox/donsez/monitor.sample.usagemonitor/doc/readme.html
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svn:eol-style = native
Added: felix/sandbox/donsez/monitor.sample.usagemonitor/pom.xml
URL:
http://svn.apache.org/viewvc/felix/sandbox/donsez/monitor.sample.usagemonitor/pom.xml?view=auto&rev=555402
==============================================================================
--- felix/sandbox/donsez/monitor.sample.usagemonitor/pom.xml (added)
+++ felix/sandbox/donsez/monitor.sample.usagemonitor/pom.xml Wed Jul 11
14:26:24 2007
@@ -0,0 +1,108 @@
+<!--
+ 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.
+-->
+<project>
+
+ <properties>
+
<repositoryLocation>http://www.apache.org/~donsez/dev/osgi/</repositoryLocation>
+ <description>provides a sample of Monitorable
service.</description>
+ </properties>
+
+ <parent>
+ <groupId>org.apache.felix</groupId>
+ <artifactId>felix</artifactId>
+ <version>0.9.0-incubator-SNAPSHOT</version>
+ </parent>
+
+ <modelVersion>4.0.0</modelVersion>
+ <packaging>bundle</packaging>
+ <name>Apache Felix Monitor Admin Sample : OS Memory and CPU Monitors</name>
+ <artifactId>org.apache.felix.sandbox.monitor.sample.usagemonitor</artifactId>
+ <description>${description}</description>
+
+ <dependencies>
+ <dependency>
+ <groupId>${pom.groupId}</groupId>
+ <artifactId>org.osgi.core</artifactId>
+ <version>${pom.version}</version>
+ </dependency>
+ <dependency>
+ <groupId>${pom.groupId}</groupId>
+ <artifactId>org.osgi.compendium</artifactId>
+ <version>${pom.version}</version>
+ </dependency>
+ <dependency>
+ <groupId>${pom.groupId}</groupId>
+ <artifactId>org.apache.felix.sandbox.monitor</artifactId>
+ <version>${pom.version}</version>
+ </dependency>
+ </dependencies>
+ <build>
+ <plugins>
+ <plugin>
+ <groupId>org.apache.felix</groupId>
+ <artifactId>maven-bundle-plugin</artifactId>
+ <extensions>true</extensions>
+ <configuration>
+ <instructions>
+
+ <!-- docs in
http://cwiki.apache.org/FELIX/bundle-plugin-for-maven-bnd.html and
http://cwiki.apache.org/FELIX/osgi-plugin-for-maven-2.html -->
+
+ <Export-Service>
+ org.osgi.service.monitor.Monitorable
+ </Export-Service>
+
+
<Private-Package>org.apache.felix.sandbox.monitor.sample.usagemonitor,org.apache.felix.sandbox.monitor.sample</Private-Package>
+ <Import-Package>*</Import-Package>
+
+
<Bundle-Activator>org.apache.felix.sandbox.monitor.sample.Activator</Bundle-Activator>
+
+ <!--
+
<Bundle-DocURL>${repositoryLocation}${pom.artifactId}/index.html</Bundle-DocURL>
+
<Bundle-Url>${repositoryLocation}${pom.artifactId}/${pom.artifactId}-${pom.version}.jar</Bundle-Url>
+
<Bundle-Source>${repositoryLocation}${pom.artifactId}/${pom.artifactId}-${pom.version}-src.jar</Bundle-Source>
+ -->
+
+ <!--
+ <Bundle-SymbolicName>${pom.artifactId}</Bundle-SymbolicName>
+ <Bundle-Description>${description}</Bundle-Description>
+ <Bundle-Vendor>Apache Software Foundation</Bundle-Vendor>
+ -->
+
+ </instructions>
+ </configuration>
+ </plugin>
+ </plugins>
+ </build>
+ <!--
+ <repositories>
+ <repository>
+ <id>apache.m2.incubator</id>
+ <name>Apache M2 Incubator Repository</name>
+ <url>http://people.apache.org/repo/m2-incubating-repository/</url>
+ </repository>
+ </repositories>
+ <pluginRepositories>
+ <pluginRepository>
+ <id>apache.m2.incubator</id>
+ <name>Apache M2 Incubator Repository</name>
+ <url>http://people.apache.org/repo/m2-incubating-repository/</url>
+ </pluginRepository>
+ </pluginRepositories>
+ -->
+</project>
Propchange: felix/sandbox/donsez/monitor.sample.usagemonitor/pom.xml
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svn:eol-style = native
Added:
felix/sandbox/donsez/monitor.sample.usagemonitor/src/main/java/org/apache/felix/sandbox/monitor/sample/Activator.java
URL:
http://svn.apache.org/viewvc/felix/sandbox/donsez/monitor.sample.usagemonitor/src/main/java/org/apache/felix/sandbox/monitor/sample/Activator.java?view=auto&rev=555402
==============================================================================
---
felix/sandbox/donsez/monitor.sample.usagemonitor/src/main/java/org/apache/felix/sandbox/monitor/sample/Activator.java
(added)
+++
felix/sandbox/donsez/monitor.sample.usagemonitor/src/main/java/org/apache/felix/sandbox/monitor/sample/Activator.java
Wed Jul 11 14:26:24 2007
@@ -0,0 +1,63 @@
+/*
+ * 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.felix.sandbox.monitor.sample;
+
+import java.util.ArrayList;
+import java.util.List;
+import java.util.ListIterator;
+
+import org.apache.felix.sandbox.monitor.sample.cpumonitor.CPUUsageMonitor;
+import
org.apache.felix.sandbox.monitor.sample.osmemmonitor.OSMemoryUsageMonitor;
+import org.osgi.framework.BundleActivator;
+import org.osgi.framework.BundleContext;
+
+/**
+ * This class activates several monitorable
+ * @author <a href="mailto:[EMAIL PROTECTED]">Felix Project Team</a>
+ */
+public class Activator implements BundleActivator {
+
+
+ private List bundleActivators=new ArrayList();
+
+ public void start(BundleContext bundleContext) throws Exception {
+
+ // TODO test if the operating system is Unix-based
+
+
+ BundleActivator bundleActivator;
+
+ bundleActivator=new OSMemoryUsageMonitor();
+ bundleActivator.start(bundleContext);
+ bundleActivators.add(bundleActivator);
+
+ bundleActivator=new CPUUsageMonitor();
+ bundleActivator.start(bundleContext);
+ bundleActivators.add(bundleActivator);
+ }
+
+ public void stop(BundleContext bundleContext) throws Exception {
+ ListIterator listIterator=bundleActivators.listIterator();
+ while (listIterator.hasNext()) {
+ BundleActivator bundleActivator=(BundleActivator)
listIterator.next();
+ listIterator.remove();
+ bundleActivator.stop(bundleContext);
+ }
+ }
+}
\ No newline at end of file
Propchange:
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Added:
felix/sandbox/donsez/monitor.sample.usagemonitor/src/main/java/org/apache/felix/sandbox/monitor/sample/cpumonitor/CPUUsageMonitor.java
URL:
http://svn.apache.org/viewvc/felix/sandbox/donsez/monitor.sample.usagemonitor/src/main/java/org/apache/felix/sandbox/monitor/sample/cpumonitor/CPUUsageMonitor.java?view=auto&rev=555402
==============================================================================
---
felix/sandbox/donsez/monitor.sample.usagemonitor/src/main/java/org/apache/felix/sandbox/monitor/sample/cpumonitor/CPUUsageMonitor.java
(added)
+++
felix/sandbox/donsez/monitor.sample.usagemonitor/src/main/java/org/apache/felix/sandbox/monitor/sample/cpumonitor/CPUUsageMonitor.java
Wed Jul 11 14:26:24 2007
@@ -0,0 +1,152 @@
+/*
+ * 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.felix.sandbox.monitor.sample.cpumonitor;
+
+import java.io.FileInputStream;
+import java.util.Dictionary;
+import java.util.HashMap;
+import java.util.Hashtable;
+import java.util.Map;
+import java.util.regex.Matcher;
+import java.util.regex.Pattern;
+
+import org.osgi.framework.BundleActivator;
+import org.osgi.framework.BundleContext;
+import org.osgi.framework.Constants;
+import org.osgi.framework.ServiceRegistration;
+import org.osgi.service.monitor.Monitorable;
+import org.osgi.service.monitor.StatusVariable;
+
+/**
+ * This class provides a Monitorable (see chapter 119 MEG spec.) to monitor
cpu of the underluying OS (only fot Linux).
+ * @author <a href="mailto:[EMAIL PROTECTED]">Felix Project Team</a>
+ */
+public class CPUUsageMonitor implements BundleActivator, Monitorable {
+
+ private static final String SERVICE_PID = "os.linux.proc";
+
+ private static final String CPU_USED_VARIABLE_NAME = "cpu.used";
+
+ private static final String CPU_FREQUENCY_VARIABLE_NAME =
"cpu.frequency";
+
+ private static final Map descriptions = new HashMap();
+
+ private ServiceRegistration serviceRegistration;
+
+ public CPUUsageMonitor() {
+ descriptions.put(CPU_USED_VARIABLE_NAME,
+ "current percentage of CPU used");
+ descriptions.put(CPU_FREQUENCY_VARIABLE_NAME,
+ "processor frequency");
+
+ }
+
+ public void start(BundleContext context) throws Exception {
+ Dictionary properties = new Hashtable();
+ properties.put(Constants.SERVICE_PID, SERVICE_PID);
+ properties.put(Constants.SERVICE_DESCRIPTION,
+ "monitor for processor frequency and of it is
used");
+
serviceRegistration=context.registerService(Monitorable.class.getName(), this,
properties);
+ }
+
+ public void stop(BundleContext context) throws Exception {
+ serviceRegistration.unregister();
+
+ }
+
+ public String[] getStatusVariableNames() {
+ return new String[] { CPU_USED_VARIABLE_NAME };
+ }
+
+ public StatusVariable getStatusVariable(String name)
+ throws IllegalArgumentException {
+ if (CPU_USED_VARIABLE_NAME.equals(name)) {
+ return new StatusVariable(name,
StatusVariable.CM_GAUGE,0);
+ //TODO
+
+ }
+ else if (CPU_FREQUENCY_VARIABLE_NAME.equals(name)) {
+
+ try {
+
+ Pattern pat;
+ Matcher mat;
+
+ FileInputStream fis=new
FileInputStream("/proc/cpuinfo");
+
+ byte[] buff=new byte[512];
+ fis.read(buff);
+ fis.close();
+
+ String s=new String(buff);
+
+ pat=Pattern.compile("cpu
MHz\\s*:\\s*\\d+.\\d+");
+ mat=pat.matcher(s);
+ String res="";
+ while(mat.find()) {
+ res=mat.group();
+ }
+
+ double frequency=0;
+
+ pat=Pattern.compile("\\d+");
+ mat=pat.matcher(res);
+ while(mat.find()) {
+ if(frequency==0)
+
frequency+=(Double.valueOf(mat.group())).doubleValue();
+ else
+
frequency+=(Double.valueOf(mat.group())).doubleValue()/1000;
+ }
+
+ return new StatusVariable(name,
StatusVariable.CM_GAUGE,(int) frequency);
+
+ } catch(Exception ex) {
+ return new StatusVariable(name,
StatusVariable.CM_GAUGE,0);
+ }
+ }
+ else
+ throw new IllegalArgumentException("Invalid Status
Variable name "
+ + name);
+ }
+
+ public boolean notifiesOnChange(String name)
+ throws IllegalArgumentException {
+ if (descriptions.get(name) != null)
+ return false;
+ else
+ throw new IllegalArgumentException("Invalid Status
Variable name " + name);
+
+ }
+
+ public boolean resetStatusVariable(String name)
+ throws IllegalArgumentException {
+ if (descriptions.get(name) != null)
+ return false;
+ else
+ throw new IllegalArgumentException("Invalid Status
Variable name " + name);
+ }
+
+ public String getDescription(String name) throws
IllegalArgumentException {
+ String description = (String) descriptions.get(name);
+ if (description != null)
+ return description;
+ else
+ throw new IllegalArgumentException("Invalid Status
Variable name " + name);
+ }
+}
Propchange:
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Added:
felix/sandbox/donsez/monitor.sample.usagemonitor/src/main/java/org/apache/felix/sandbox/monitor/sample/osmemmonitor/OSMemoryUsageMonitor.java
URL:
http://svn.apache.org/viewvc/felix/sandbox/donsez/monitor.sample.usagemonitor/src/main/java/org/apache/felix/sandbox/monitor/sample/osmemmonitor/OSMemoryUsageMonitor.java?view=auto&rev=555402
==============================================================================
---
felix/sandbox/donsez/monitor.sample.usagemonitor/src/main/java/org/apache/felix/sandbox/monitor/sample/osmemmonitor/OSMemoryUsageMonitor.java
(added)
+++
felix/sandbox/donsez/monitor.sample.usagemonitor/src/main/java/org/apache/felix/sandbox/monitor/sample/osmemmonitor/OSMemoryUsageMonitor.java
Wed Jul 11 14:26:24 2007
@@ -0,0 +1,158 @@
+/*
+ * 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.felix.sandbox.monitor.sample.osmemmonitor;
+
+import java.io.BufferedReader;
+import java.io.FileReader;
+import java.io.IOException;
+import java.util.Dictionary;
+import java.util.HashMap;
+import java.util.Hashtable;
+import java.util.Map;
+import java.util.StringTokenizer;
+
+import org.osgi.framework.BundleActivator;
+import org.osgi.framework.BundleContext;
+import org.osgi.framework.Constants;
+import org.osgi.framework.ServiceRegistration;
+import org.osgi.service.monitor.Monitorable;
+import org.osgi.service.monitor.StatusVariable;
+
+/**
+ * This class provides a Monitorable (see chapter 119 MEG spec.) to monitor
memory of the underluying OS (only fot Linux).
+ * @author <a href="mailto:[EMAIL PROTECTED]">Felix Project Team</a>
+ */
+public class OSMemoryUsageMonitor implements BundleActivator, Monitorable {
+
+ private static final String SERVICE_PID="monitoradmin.os.linux";
+
+ private static final String MEMORY_FREE_VARIABLE_NAME="memory.free";
+ private static final String MEMORY_TOTAL_VARIABLE_NAME="memory.total";
+
+
+ private long memoryFree=-1;
+ private long memoryTotal=-1;
+
+ private static final Map descriptions=new HashMap();
+
+ private ServiceRegistration serviceRegistration;
+
+ public OSMemoryUsageMonitor(){
+ descriptions.put(MEMORY_FREE_VARIABLE_NAME,
+ "current amount of free memory in the OS (in bytes)");
+ descriptions.put(MEMORY_TOTAL_VARIABLE_NAME,
+ "current amount of total memory in the OS (in bytes)");
+ }
+
+ private static final String badOSErrorMessage="This bundle could only
run under Linux";
+ public void start(BundleContext context) throws Exception {
+
if(!context.getProperty(Constants.FRAMEWORK_OS_NAME).equals("Linux")) {
+ System.out.println(badOSErrorMessage);
+ throw new Exception(badOSErrorMessage);
+ }
+ Dictionary properties = new Hashtable();
+ properties.put(Constants.SERVICE_PID, SERVICE_PID);
+ properties.put(Constants.SERVICE_DESCRIPTION, "monitor for free
and total amounts of OS memory");
+
serviceRegistration=context.registerService(Monitorable.class.getName(), this,
properties);
+ }
+
+ public void stop(BundleContext context) throws Exception {
+ serviceRegistration.unregister();
+ }
+
+ public String[] getStatusVariableNames() {
+ return new String[] { MEMORY_FREE_VARIABLE_NAME };
+ }
+
+
+ public StatusVariable getStatusVariable(String name)
+ throws IllegalArgumentException {
+ refreshMemory();
+ if (MEMORY_FREE_VARIABLE_NAME.equals(name))
+ return new StatusVariable(
+ name,
+ StatusVariable.CM_GAUGE,
+ memoryFree
+ );
+ else if (MEMORY_TOTAL_VARIABLE_NAME.equals(name))
+ return new StatusVariable(
+ name,
+ StatusVariable.CM_GAUGE,
+ memoryTotal
+ );
+ else
+ throw new IllegalArgumentException("Invalid Status
Variable name "
+ + name);
+ }
+
+ public boolean notifiesOnChange(String name)
+ throws IllegalArgumentException {
+ if(descriptions.get(name)!=null)
+ return false;
+ else
+ throw new IllegalArgumentException("Invalid Status
Variable name "
+ + name);
+
+ }
+
+ public boolean resetStatusVariable(String name)
+ throws IllegalArgumentException {
+ if(descriptions.get(name)!=null)
+ return false;
+ else
+ throw new IllegalArgumentException("Invalid Status
Variable name "
+ + name);
+ }
+
+ public String getDescription(String name) throws
IllegalArgumentException {
+ String description=(String) descriptions.get(name);
+ if(description!=null)
+ return description;
+ else
+ throw new IllegalArgumentException("Invalid Status
Variable name "
+ + name);
+ }
+
+
+ /**
+ * Refresh memory amounts
+ */
+ private void refreshMemory(){
+ StringTokenizer st;
+ long l=0;
+ try{
+ FileReader meminfo=new FileReader("/proc/meminfo");
+ BufferedReader buffer=new BufferedReader(meminfo);
+
+ st=new StringTokenizer(buffer.readLine());
+ st.nextToken();
+ memoryTotal=Long.valueOf(st.nextToken()).longValue();
+
+ st=new StringTokenizer(buffer.readLine());
+ st.nextToken();
+ memoryFree=Long.valueOf(st.nextToken()).longValue();
+
+ buffer.close();
+ meminfo.close();
+ }
+ catch(IOException e){
+ System.out.println(e);
+ }
+ }
+}
Propchange:
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