| package org.apache.turbine.pipeline; |
| |
| import java.util.HashMap; |
| import java.util.Map; |
| |
| import org.apache.turbine.services.TurbineServices; |
| import org.apache.turbine.services.rundata.RunDataService; |
| import org.apache.turbine.util.RunData; |
| |
| |
| /* |
| * 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. |
| */ |
| |
| |
| /** |
| * <p>A <b>PipelineData</b> is a holder for data being passed from one |
| * Valve to the next. |
| * The detailed contract for a Valve is included in the description of |
| * the <code>invoke()</code> method below.</p> |
| * |
| * <b>HISTORICAL NOTE</b>: The "PipelineData" name was assigned to this |
| * holder as it functions similarly to the RunData object, but without |
| * the additional methods |
| * |
| * @author <a href="mailto:epugh@opensourceconnections.com">Eric Pugh</a> |
| * @author <a href="mailto:peter@courcoux.biz">Peter Courcoux</a> |
| */ |
| public class DefaultPipelineData implements PipelineData |
| { |
| private final Map<Class<?>, Map<Class<?>, ? super Object>> map = |
| new HashMap<>(); |
| |
| /** |
| * Put a configured map of objects into the pipeline data object |
| * |
| * @param key the key class |
| * @param value the value map |
| */ |
| @Override |
| public void put(Class<?> key, Map<Class<?>, ? super Object> value) |
| { |
| map.put(key, value); |
| } |
| |
| /** |
| * Get the configured map of objects for the given key |
| * |
| * @param key the key class |
| * @return the value map or null if no such key exists |
| */ |
| @Override |
| public Map<Class<?>, ? super Object> get(Class<?> key) |
| { |
| return map.get(key); |
| } |
| |
| /** |
| * Get a value from the configured map of objects for the given keys |
| * |
| * @param key the key class |
| * @param innerKey the key into the value map |
| * @return the inner value or null if no such keys exist |
| */ |
| @Override |
| @SuppressWarnings("unchecked") |
| public <T> T get(Class<?> key, Class<T> innerKey) |
| { |
| Map<Class<?>, ? super Object> innerMap = get(key); |
| if (innerMap == null) |
| { |
| return null; |
| } |
| return (T) innerMap.get(innerKey); |
| } |
| |
| /** |
| * Put object back into RunDataService for recycling |
| */ |
| @Override |
| public void close() throws Exception |
| { |
| RunDataService rds = (RunDataService) TurbineServices.getInstance().getService(RunDataService.SERVICE_NAME); |
| if (rds != null) |
| { |
| rds.putRunData((RunData) this); |
| } |
| } |
| } |