| /* |
| * 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.language.markup.xsp; |
| |
| |
| import org.apache.cocoon.components.modules.input.InputModuleHelper; |
| |
| import org.xml.sax.ContentHandler; |
| import org.xml.sax.SAXException; |
| import org.xml.sax.helpers.AttributesImpl; |
| |
| import java.util.Iterator; |
| import java.util.Map; |
| |
| /** |
| * Helper class that caches references to InputModules for use in |
| * XSPs. Works in conjunction with the input.xsl |
| * logicsheet. References are obtained the first time a module is |
| * accessed and kept until the page is completely displayed. |
| * |
| * @author <a href="mailto:haul@apache.org">Christian Haul</a> |
| * @version CVS $Id$ |
| */ |
| public class XSPModuleHelper extends InputModuleHelper { |
| |
| private static final String PREFIX = "input"; |
| private static final String URI = "http://apache.org/cocoon/xsp/input/1.0"; |
| |
| /** |
| * Output the request attribute values for a given name to the |
| * content handler. |
| * |
| * @param objectModel The Map objectModel |
| * @param contentHandler The SAX content handler |
| * @param module a <code>String</code> value holding the module name |
| * @param name a <code>String</code> value holding the attribute name |
| * @exception SAXException If a SAX error occurs |
| * @exception RuntimeException if an error occurs |
| */ |
| public void getAttributeValues(Map objectModel, ContentHandler contentHandler, String module, String name ) |
| throws SAXException, RuntimeException { |
| |
| AttributesImpl attr = new AttributesImpl(); |
| XSPObjectHelper.addAttribute(attr, "name", name); |
| |
| XSPObjectHelper.start(URI, PREFIX, contentHandler, |
| "attribute-values", attr); |
| |
| Object[] values = this.getAttributeValues(objectModel, module, name, null); |
| |
| if (values != null) { |
| for (int i = 0; i < values.length; i++) { |
| XSPObjectHelper.elementData(URI, PREFIX, contentHandler, |
| "value", String.valueOf(values[i])); |
| } |
| } |
| |
| XSPObjectHelper.end(URI, PREFIX, contentHandler, "attribute-values"); |
| } |
| |
| /** |
| * Output attribute names for a given request |
| * |
| * @param objectModel The Map objectModel |
| * @param contentHandler The SAX content handler |
| * @param module the module's name |
| * @exception SAXException If a SAX error occurs |
| * @exception RuntimeException if an error occurs |
| */ |
| public void getAttributeNames(Map objectModel, ContentHandler contentHandler, String module) |
| throws SAXException, RuntimeException { |
| |
| XSPObjectHelper.start(URI, PREFIX, contentHandler, "attribute-names"); |
| |
| Iterator iter = this.getAttributeNames(objectModel, module); |
| while (iter.hasNext()) { |
| String name = (String) iter.next(); |
| XSPObjectHelper.elementData(URI, PREFIX, contentHandler, "name", name); |
| } |
| |
| XSPObjectHelper.end(URI, PREFIX, contentHandler, "attribute-names"); |
| } |
| |
| |
| } |