| /* |
| * 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.cocoon.components.treeprocessor.sitemap; |
| |
| import org.apache.avalon.framework.activity.Initializable; |
| import org.apache.avalon.framework.component.ComponentException; |
| import org.apache.avalon.framework.component.ComponentManager; |
| import org.apache.avalon.framework.component.Composable; |
| import org.apache.cocoon.components.treeprocessor.AbstractProcessingNode; |
| import org.apache.cocoon.components.treeprocessor.CategoryNode; |
| import org.apache.cocoon.components.treeprocessor.InvokeContext; |
| import org.apache.cocoon.components.treeprocessor.ParameterizableProcessingNode; |
| import org.apache.cocoon.components.treeprocessor.ProcessingNode; |
| import org.apache.cocoon.components.treeprocessor.variables.VariableResolver; |
| import org.apache.cocoon.components.treeprocessor.variables.VariableResolverFactory; |
| import org.apache.cocoon.environment.Environment; |
| |
| import java.util.Map; |
| |
| /** |
| * |
| * @author <a href="mailto:sylvain@apache.org">Sylvain Wallez</a> |
| * @version CVS $Id$ |
| */ |
| |
| public class CallNode extends AbstractProcessingNode |
| implements Initializable, ParameterizableProcessingNode, Composable { |
| |
| private ComponentManager manager; |
| |
| /** The parameters of this node */ |
| private Map parameters; |
| |
| /** The 'resource' attribute */ |
| private String resourceName; |
| |
| private VariableResolver resourceResolver; |
| |
| /** The category node */ |
| private CategoryNode resources; |
| |
| private ProcessingNode resourceNode; |
| |
| public void compose(ComponentManager manager) throws ComponentException { |
| this.manager = manager; |
| } |
| |
| public void setParameters(Map parameterMap) { |
| this.parameters = parameterMap; |
| } |
| |
| public void setResource(CategoryNode resources, String resourceName) throws Exception { |
| this.resourceName = resourceName; |
| this.resources = resources; |
| } |
| |
| public void initialize() throws Exception { |
| if (VariableResolverFactory.needsResolve(this.resourceName)) { |
| // Will always be resolved at invoke time |
| this.resourceResolver = VariableResolverFactory.getResolver(this.resourceName, this.manager); |
| } else { |
| // Static name : get it now |
| this.resourceNode = this.resources.getNodeByName(VariableResolverFactory.unescape(this.resourceName)); |
| } |
| } |
| |
| public final boolean invoke(Environment env, InvokeContext context) |
| throws Exception { |
| |
| Map objectModel = env.getObjectModel(); |
| // Resolve parameters, but push them only once the resource name has been |
| // resolved, otherwise it adds an unwanted nesting level |
| Map params = VariableResolver.buildMap(this.parameters, context, objectModel); |
| |
| if (this.resourceNode != null) { |
| // Static resource name |
| context.pushMap(null,params); |
| |
| try { |
| return this.resourceNode.invoke(env, context); |
| } finally { |
| context.popMap(); |
| } |
| |
| } else { |
| // Resolved resource name |
| String name = this.resourceResolver.resolve(context, objectModel); |
| if (getLogger().isDebugEnabled()) { |
| getLogger().debug("Calling resource " + name); |
| } |
| |
| // and only now push the parameters |
| context.pushMap(null,params); |
| |
| try { |
| return this.resources.invokeByName(name, env, context); |
| } finally { |
| context.popMap(); |
| } |
| } |
| } |
| } |