org.apache.jackrabbit.test.RepositoryHelperPoolImpl Maven / Gradle / Ivy
/*
* 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.jackrabbit.test;
import java.util.List;
import java.util.LinkedList;
import java.util.Properties;
import java.util.Map;
import java.util.HashMap;
import java.io.InputStream;
import java.io.IOException;
/**
* RepositoryHelperPoolImpl implements a pool of repository helper
* instances.
*/
public class RepositoryHelperPoolImpl implements RepositoryHelperPool {
private static final String PROP_FILE = "repositoryHelperPool.properties";
private List helpers = new LinkedList();
private static RepositoryHelperPool POOL = null;
public synchronized static RepositoryHelperPool getInstance() {
if (POOL == null) {
POOL = new RepositoryHelperPoolImpl();
}
return POOL;
}
private RepositoryHelperPoolImpl() {
InputStream in = RepositoryHelperPoolImpl.class.getClassLoader().getResourceAsStream(PROP_FILE);
if (in != null) {
try {
Properties props = new Properties();
props.load(in);
for (int i = 0;; i++) {
String prefix = "helper." + i + ".";
Map helperProp = new HashMap();
for (Map.Entry entry : props.entrySet()) {
String key = (String) entry.getKey();
if (key.startsWith(prefix)) {
helperProp.put(key.substring(prefix.length()), entry.getValue());
}
}
if (helperProp.isEmpty()) {
break;
}
addHelper(new RepositoryHelper(helperProp));
}
} catch (IOException e) {
// ignore and use default
} finally {
try {
in.close();
} catch (IOException e) {
// ignore
}
}
}
if (helpers.isEmpty()) {
// use single default repo helper
addHelper(new RepositoryHelper());
}
}
public synchronized void addHelper(RepositoryHelper helper) {
helpers.add(helper);
}
public synchronized RepositoryHelper borrowHelper()
throws InterruptedException {
while (helpers.isEmpty()) {
wait();
}
return helpers.remove(0);
}
public synchronized RepositoryHelper[] borrowHelpers() throws InterruptedException {
while (helpers.isEmpty()) {
wait();
}
try {
return helpers.toArray(new RepositoryHelper[helpers.size()]);
} finally {
helpers.clear();
}
}
public synchronized void returnHelper(RepositoryHelper helper) {
helpers.add(helper);
notifyAll();
}
}