Github user gauravgopi123 commented on a diff in the pull request:
https://github.com/apache/incubator-apex-malhar/pull/131#discussion_r50760108
--- Diff:
contrib/src/main/java/com/datatorrent/contrib/geode/GeodeStore.java ---
@@ -0,0 +1,298 @@
+/**
+ * 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 com.datatorrent.contrib.geode;
+
+import java.io.IOException;
+import java.io.Serializable;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Map;
+
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import
org.apache.accumulo.core.client.impl.thrift.ThriftTest.Processor.throwsError;
+
+import com.gemstone.gemfire.cache.CacheClosedException;
+import com.gemstone.gemfire.cache.CacheWriterException;
+import com.gemstone.gemfire.cache.EntryNotFoundException;
+import com.gemstone.gemfire.cache.Region;
+import com.gemstone.gemfire.cache.TimeoutException;
+import com.gemstone.gemfire.cache.client.ClientCache;
+import com.gemstone.gemfire.cache.client.ClientCacheFactory;
+import com.gemstone.gemfire.cache.client.ClientRegionShortcut;
+import com.gemstone.gemfire.cache.query.FunctionDomainException;
+import com.gemstone.gemfire.cache.query.NameResolutionException;
+import com.gemstone.gemfire.cache.query.QueryInvocationTargetException;
+import com.gemstone.gemfire.cache.query.SelectResults;
+import com.gemstone.gemfire.cache.query.TypeMismatchException;
+
+import com.datatorrent.lib.db.KeyValueStore;
+
+/**
+ * Provides the implementation of a Geode store.
+ * Geode is a distributed in-memory database
+ * that provides reliable asynchronous event notifications and guaranteed
message delivery.
+ * Geode is a data management platform that provides real-time
+ * , consistent access to data-intensive applications.
+ *
+ */
+public class GeodeStore implements KeyValueStore, Serializable
+{
+ /**
+ *
+ */
+ private static final long serialVersionUID = -5076452548893319967L;
+ private static final Logger logger =
LoggerFactory.getLogger(GeodeStore.class);
+ private transient ClientCache clientCache = null;
+ private transient Region<Object, Object> region = null;
+ private String locatorHost;
+ private int locatorPort;
+ private String regionName;
+
+ private ClientCache initClient()
+ {
+ try {
+ clientCache = new
ClientCacheFactory().addPoolLocator(getLocatorHost(),
getLocatorPort()).create();
+ } catch (CacheClosedException ex) {
+ throw new RuntimeException("Exception while creating cache", ex);
+
+ }
+
+ return clientCache;
+ }
+
+ /**
+ * @return the regionName
+ */
+ public String getRegionName()
+ {
+ return regionName;
+ }
+
+
+ /**
+ * @return the clientCache
+ */
+ public ClientCache getClientCache()
+ {
+ return clientCache;
+ }
+
+ /**
+ * @return the locatorPort
+ */
+ public int getLocatorPort()
+ {
+ return locatorPort;
+ }
+
+ /**
+ * @param locatorPort
+ * the locatorPort to set
+ */
+ public void setLocatorPort(int locatorPort)
+ {
+ this.locatorPort = locatorPort;
+ }
+
+ /**
+ * @return the locatorHost
+ */
+ public String getLocatorHost()
+ {
+ return locatorHost;
+ }
+
+ /**
+ * @param locatorHost
+ * the locatorHost to set
+ */
+ public void setLocatorHost(String locatorHost)
+ {
+ this.locatorHost = locatorHost;
+ }
+
+ /**
+ * @return the region
+ * @throws IOException
+ */
+ public Region<Object, Object> getRegion() throws IOException
+ {
+ // return region;
+ if (clientCache == null || clientCache.isClosed()) {
+ initClient();
+ }
+
+ if (region == null) {
+ region = clientCache.getRegion(regionName);
+ if (region == null) {
+ region = clientCache.<Object, Object>
createClientRegionFactory(ClientRegionShortcut.PROXY).create(regionName);
+ }
+ }
+
+ return region;
+ }
+
+ @Override
+ public void connect() throws IOException
+ {
+ try {
+ clientCache = new
ClientCacheFactory().addPoolLocator(getLocatorHost(),
getLocatorPort()).create();
+ } catch (Exception ex) {
+ throw new RuntimeException(ex);
+ }
+
+ region = clientCache.getRegion(getRegionName());
+
+ if (region == null) {
+ region = clientCache.<Object, Object>
createClientRegionFactory(ClientRegionShortcut.PROXY).create(
+ getRegionName());
+ }
+
+ }
+
+ @Override
+ public void disconnect() throws IOException
+ {
+ clientCache.close();
+
+ }
+
+ @Override
+ public boolean isConnected()
+ {
+ return (clientCache.isClosed());
+
+ }
+
+ /**
+ * Gets the value given the key. Note that it does NOT work with hash
values
+ * or list values
+ *
+ * @param key
+ * @return The value.
+ */
+ @Override
+ public Object get(Object key)
+ {
+
+ try {
+ return (getRegion().get(key));
+ } catch (IOException ex) {
+ throw new RuntimeException("Exception while getting the object",
ex);
+
+ }
+
+ }
+
+ /**
+ * Gets all the values given the keys. Note that it does NOT work with
hash
+ * values or list values
+ *
+ * @param keys
+ * @return All values for the given keys.
+ */
+ @SuppressWarnings("unchecked")
+ @Override
+ public List<Object> getAll(List<Object> keys)
+ {
+
+ List<Object> values = new ArrayList<Object>();
+
+ try {
+ final Map<Object, Object> entries = getRegion().getAll(keys);
+ for (int i = 0; i < keys.size(); i++) {
+ values.add(entries.get(keys.get(i)));
+ }
+ } catch (IOException ex) {
+ logger.info("error getting region ", ex);
+ }
+
+ return (values);
+
+ }
+
+ /**
+ * @param regionName
+ * the regionName to set
+ */
+ public void setRegionName(String regionName)
+ {
+ this.regionName = regionName;
+ }
+
+
+ public Map<Object, Object> getAllMap(List<Object> keys)
+ {
+
+ try {
+ final Map<Object, Object> entries = getRegion().getAll(keys);
+ return (entries);
+ } catch (IOException ex) {
+ logger.info("error getting object ", ex);
--- End diff --
why swallowing exception?
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