com.gemstone.gemfire.cache.hdfs.internal.hoplog.HDFSStoreDirector Maven / Gradle / Ivy
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TIBCO ComputeDB store based off Pivotal GemFireXD
/*
* Copyright (c) 2010-2015 Pivotal Software, Inc. All rights reserved.
*
* Licensed 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. See accompanying
* LICENSE file.
*/
package com.gemstone.gemfire.cache.hdfs.internal.hoplog;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.concurrent.ConcurrentHashMap;
import com.gemstone.gemfire.cache.hdfs.internal.HDFSStoreImpl;
/**
* HDFSStoreDirector is created for managing all instances of HDFSStoreImpl.
*
* @author Hemant Bhanawat
*/
public final class HDFSStoreDirector {
private final ConcurrentHashMap storeMap = new ConcurrentHashMap();
// singleton instance
private static volatile HDFSStoreDirector instance;
private HDFSStoreDirector() {
}
public static final HDFSStoreDirector getInstance() {
if (instance == null) {
synchronized (HDFSStoreDirector.class) {
if (instance == null)
instance = new HDFSStoreDirector();
}
}
return instance;
}
// Called when the region is created.
public final void addHDFSStore(HDFSStoreImpl hdfsStore){
this.storeMap.put(hdfsStore.getName(), hdfsStore);
}
public final HDFSStoreImpl getHDFSStore(String hdfsStoreName) {
return this.storeMap.get(hdfsStoreName);
}
public final void removeHDFSStore(String hdfsStoreName) {
this.storeMap.remove(hdfsStoreName);
}
public void closeHDFSStores() {
Iterator it = this.storeMap.values().iterator();
while (it.hasNext()) {
HDFSStoreImpl hsi = it.next();
hsi.close();
}
this.storeMap.clear();
}
public ArrayList getAllHDFSStores() {
ArrayList hdfsStores = new ArrayList();
hdfsStores.addAll(this.storeMap.values());
return hdfsStores;
}
}