| /** |
| * 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.activemq.store.memory; |
| |
| import java.io.File; |
| import java.io.IOException; |
| import java.util.HashSet; |
| import java.util.Iterator; |
| import java.util.Set; |
| import java.util.concurrent.ConcurrentHashMap; |
| |
| import org.apache.activemq.broker.ConnectionContext; |
| import org.apache.activemq.command.ActiveMQDestination; |
| import org.apache.activemq.command.ActiveMQQueue; |
| import org.apache.activemq.command.ActiveMQTopic; |
| import org.apache.activemq.command.ProducerId; |
| import org.apache.activemq.store.MessageStore; |
| import org.apache.activemq.store.PersistenceAdapter; |
| import org.apache.activemq.store.ProxyMessageStore; |
| import org.apache.activemq.store.TopicMessageStore; |
| import org.apache.activemq.store.TransactionStore; |
| import org.apache.activemq.usage.SystemUsage; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| /** |
| * @org.apache.xbean.XBean |
| * |
| */ |
| public class MemoryPersistenceAdapter implements PersistenceAdapter { |
| private static final Logger LOG = LoggerFactory.getLogger(MemoryPersistenceAdapter.class); |
| |
| MemoryTransactionStore transactionStore; |
| ConcurrentHashMap<ActiveMQDestination, TopicMessageStore> topics = new ConcurrentHashMap<ActiveMQDestination, TopicMessageStore>(); |
| ConcurrentHashMap<ActiveMQDestination, MessageStore> queues = new ConcurrentHashMap<ActiveMQDestination, MessageStore>(); |
| private boolean useExternalMessageReferences; |
| |
| public Set<ActiveMQDestination> getDestinations() { |
| Set<ActiveMQDestination> rc = new HashSet<ActiveMQDestination>(queues.size() + topics.size()); |
| for (Iterator<ActiveMQDestination> iter = queues.keySet().iterator(); iter.hasNext();) { |
| rc.add(iter.next()); |
| } |
| for (Iterator<ActiveMQDestination> iter = topics.keySet().iterator(); iter.hasNext();) { |
| rc.add(iter.next()); |
| } |
| return rc; |
| } |
| |
| public static MemoryPersistenceAdapter newInstance(File file) { |
| return new MemoryPersistenceAdapter(); |
| } |
| |
| public MessageStore createQueueMessageStore(ActiveMQQueue destination) throws IOException { |
| MessageStore rc = queues.get(destination); |
| if (rc == null) { |
| rc = new MemoryMessageStore(destination); |
| if (transactionStore != null) { |
| rc = transactionStore.proxy(rc); |
| } |
| queues.put(destination, rc); |
| } |
| return rc; |
| } |
| |
| public TopicMessageStore createTopicMessageStore(ActiveMQTopic destination) throws IOException { |
| TopicMessageStore rc = topics.get(destination); |
| if (rc == null) { |
| rc = new MemoryTopicMessageStore(destination); |
| if (transactionStore != null) { |
| rc = transactionStore.proxy(rc); |
| } |
| topics.put(destination, rc); |
| } |
| return rc; |
| } |
| |
| /** |
| * Cleanup method to remove any state associated with the given destination |
| * |
| * @param destination Destination to forget |
| */ |
| public void removeQueueMessageStore(ActiveMQQueue destination) { |
| queues.remove(destination); |
| } |
| |
| /** |
| * Cleanup method to remove any state associated with the given destination |
| * |
| * @param destination Destination to forget |
| */ |
| public void removeTopicMessageStore(ActiveMQTopic destination) { |
| topics.remove(destination); |
| } |
| |
| public TransactionStore createTransactionStore() throws IOException { |
| if (transactionStore == null) { |
| transactionStore = new MemoryTransactionStore(this); |
| } |
| return transactionStore; |
| } |
| |
| public void beginTransaction(ConnectionContext context) { |
| } |
| |
| public void commitTransaction(ConnectionContext context) { |
| } |
| |
| public void rollbackTransaction(ConnectionContext context) { |
| } |
| |
| public void start() throws Exception { |
| } |
| |
| public void stop() throws Exception { |
| } |
| |
| public long getLastMessageBrokerSequenceId() throws IOException { |
| return 0; |
| } |
| |
| public void deleteAllMessages() throws IOException { |
| for (Iterator<TopicMessageStore> iter = topics.values().iterator(); iter.hasNext();) { |
| MemoryMessageStore store = asMemoryMessageStore(iter.next()); |
| if (store != null) { |
| store.delete(); |
| } |
| } |
| for (Iterator<MessageStore> iter = queues.values().iterator(); iter.hasNext();) { |
| MemoryMessageStore store = asMemoryMessageStore(iter.next()); |
| if (store != null) { |
| store.delete(); |
| } |
| } |
| |
| if (transactionStore != null) { |
| transactionStore.delete(); |
| } |
| } |
| |
| public boolean isUseExternalMessageReferences() { |
| return useExternalMessageReferences; |
| } |
| |
| public void setUseExternalMessageReferences(boolean useExternalMessageReferences) { |
| this.useExternalMessageReferences = useExternalMessageReferences; |
| } |
| |
| protected MemoryMessageStore asMemoryMessageStore(Object value) { |
| if (value instanceof MemoryMessageStore) { |
| return (MemoryMessageStore)value; |
| } |
| if (value instanceof ProxyMessageStore) { |
| MessageStore delegate = ((ProxyMessageStore)value).getDelegate(); |
| if (delegate instanceof MemoryMessageStore) { |
| return (MemoryMessageStore) delegate; |
| } |
| } |
| LOG.warn("Expected an instance of MemoryMessageStore but was: " + value); |
| return null; |
| } |
| |
| /** |
| * @param usageManager The UsageManager that is controlling the broker's |
| * memory usage. |
| */ |
| public void setUsageManager(SystemUsage usageManager) { |
| } |
| |
| public String toString() { |
| return "MemoryPersistenceAdapter"; |
| } |
| |
| public void setBrokerName(String brokerName) { |
| } |
| |
| public void setDirectory(File dir) { |
| } |
| |
| public void checkpoint(boolean sync) throws IOException { |
| } |
| |
| public long size(){ |
| return 0; |
| } |
| |
| public void setCreateTransactionStore(boolean create) throws IOException { |
| if (create) { |
| createTransactionStore(); |
| } |
| } |
| |
| public long getLastProducerSequenceId(ProducerId id) { |
| // memory map does duplicate suppression |
| return -1; |
| } |
| } |