| /** |
| * 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.camel.component.infinispan; |
| |
| import org.apache.camel.Exchange; |
| import org.apache.camel.Processor; |
| import org.apache.camel.component.infinispan.embedded.InfinispanConsumerEmbeddedHandler; |
| import org.apache.camel.component.infinispan.remote.InfinispanConsumerRemoteHandler; |
| import org.apache.camel.component.infinispan.remote.InfinispanRemoteOperation; |
| import org.apache.camel.impl.DefaultConsumer; |
| import org.infinispan.client.hotrod.RemoteCache; |
| import org.infinispan.client.hotrod.Search; |
| import org.infinispan.commons.api.BasicCache; |
| import org.infinispan.commons.api.BasicCacheContainer; |
| import org.infinispan.query.api.continuous.ContinuousQuery; |
| import org.infinispan.query.api.continuous.ContinuousQueryListener; |
| import org.infinispan.query.dsl.Query; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| public class InfinispanConsumer extends DefaultConsumer { |
| private static final transient Logger LOGGER = LoggerFactory.getLogger(InfinispanProducer.class); |
| private final InfinispanConfiguration configuration; |
| private InfinispanEventListener listener; |
| private InfinispanConsumerHandler consumerHandler; |
| private BasicCache<Object, Object> cache; |
| private ContinuousQuery<Object, Object> continuousQuery; |
| |
| public InfinispanConsumer(InfinispanEndpoint endpoint, Processor processor, InfinispanConfiguration configuration) { |
| super(endpoint, processor); |
| this.configuration = configuration; |
| } |
| |
| public void processEvent(String eventType, boolean isPre, String cacheName, Object key) { |
| processEvent(eventType, isPre, cacheName, key, null); |
| } |
| |
| public void processEvent(String eventType, boolean isPre, String cacheName, Object key, Object eventData) { |
| Exchange exchange = getEndpoint().createExchange(); |
| exchange.getOut().setHeader(InfinispanConstants.EVENT_TYPE, eventType); |
| exchange.getOut().setHeader(InfinispanConstants.IS_PRE, isPre); |
| exchange.getOut().setHeader(InfinispanConstants.CACHE_NAME, cacheName); |
| exchange.getOut().setHeader(InfinispanConstants.KEY, key); |
| if (eventData != null) { |
| exchange.getOut().setHeader(InfinispanConstants.EVENT_DATA, eventData); |
| } |
| |
| try { |
| getProcessor().process(exchange); |
| } catch (Exception e) { |
| LOGGER.error("Error processing event ", e); |
| } |
| } |
| |
| @Override |
| protected void doStart() throws Exception { |
| super.doStart(); |
| |
| BasicCacheContainer cacheContainer = configuration.getCacheContainer(); |
| cache = InfinispanUtil.getCache(configuration.getCacheContainer(), configuration.getCacheName()); |
| |
| if (configuration.hasQueryBuilder()) { |
| if (InfinispanUtil.isRemote(cache)) { |
| RemoteCache<Object, Object> remoteCache = InfinispanUtil.asRemote(cache); |
| Query query = InfinispanRemoteOperation.buildQuery(configuration.getQueryBuilder(), remoteCache); |
| |
| continuousQuery = Search.getContinuousQuery(remoteCache); |
| continuousQuery.addContinuousQueryListener(query, new ContinuousQueryEventListener(cache.getName())); |
| } else { |
| throw new IllegalArgumentException("Can't run continuous queries against embedded cache (" + cache.getName() + ")"); |
| } |
| } else { |
| if (InfinispanUtil.isEmbedded(cacheContainer)) { |
| consumerHandler = InfinispanConsumerEmbeddedHandler.INSTANCE; |
| } else if (InfinispanUtil.isRemote(cacheContainer)) { |
| consumerHandler = InfinispanConsumerRemoteHandler.INSTANCE; |
| } else { |
| throw new UnsupportedOperationException("Consumer not support for CacheContainer: " + cacheContainer); |
| } |
| |
| listener = consumerHandler.start(this); |
| } |
| } |
| |
| @Override |
| protected void doStop() throws Exception { |
| if (continuousQuery != null) { |
| continuousQuery.removeAllListeners(); |
| } |
| |
| if (consumerHandler != null) { |
| consumerHandler.stop(this); |
| } |
| |
| super.doStop(); |
| } |
| |
| public BasicCache<Object, Object> getCache() { |
| return cache; |
| } |
| |
| public InfinispanEventListener getListener() { |
| return listener; |
| } |
| |
| public InfinispanConfiguration getConfiguration() { |
| return configuration; |
| } |
| |
| private class ContinuousQueryEventListener implements ContinuousQueryListener<Object, Object> { |
| private final String cacheName; |
| |
| public ContinuousQueryEventListener(String cacheName) { |
| this.cacheName = cacheName; |
| } |
| |
| @Override |
| public void resultJoining(Object key, Object value) { |
| processEvent(InfinispanConstants.CACHE_ENTRY_JOINING, false, cacheName, key, value); |
| } |
| |
| @Override |
| public void resultLeaving(Object key) { |
| processEvent(InfinispanConstants.CACHE_ENTRY_LEAVING, false, cacheName, key); |
| } |
| } |
| } |