| /* |
| * Copyright 1999-2004 The Apache Software Foundation. |
| * |
| * Licensed 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.acting; |
| |
| import org.apache.avalon.framework.configuration.Configuration; |
| import org.apache.avalon.framework.configuration.ConfigurationException; |
| import org.apache.avalon.framework.parameters.Parameters; |
| import org.apache.avalon.framework.thread.ThreadSafe; |
| import org.apache.cocoon.environment.ObjectModelHelper; |
| import org.apache.cocoon.environment.Redirector; |
| import org.apache.cocoon.environment.Response; |
| import org.apache.cocoon.environment.SourceResolver; |
| |
| import java.util.Collections; |
| import java.util.HashMap; |
| import java.util.Map; |
| |
| /** |
| * This action adds HTTP headers to the response. |
| * |
| * @version $Id$ |
| */ |
| public class HttpHeaderAction |
| extends AbstractConfigurableAction |
| implements ThreadSafe { |
| |
| /** |
| * Stores keys of global configuration. |
| */ |
| private Object[] defaults = {}; |
| |
| public void configure(Configuration conf) throws ConfigurationException { |
| super.configure(conf); |
| this.defaults = super.settings.keySet().toArray(); |
| } |
| |
| public Map act(Redirector redirector, SourceResolver resolver, |
| Map objectModel, String source, Parameters parameters) |
| throws Exception { |
| final Map results = new HashMap(); |
| |
| final Response response = ObjectModelHelper.getResponse(objectModel); |
| |
| // Process local configuration parameters |
| final String[] names = parameters.getNames(); |
| for (int i = 0; i < names.length; i++) { |
| response.setHeader(names[i],parameters.getParameter(names[i])); |
| results.put(names[i], parameters.getParameter(names[i])); |
| } |
| |
| // Process global defaults, that are not overridden |
| for (int i = 0; i < defaults.length; i++) { |
| if (!results.containsKey(this.defaults[i])) { |
| response.setHeader((String) this.defaults[i], (String) this.settings.get(defaults[i])); |
| results.put(this.defaults[i], this.settings.get(defaults[i])); |
| } |
| } |
| |
| return Collections.unmodifiableMap(results); |
| } |
| } |