| /** |
| * Copyright 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.commons.jelly.tags.jaxme; |
| |
| import java.io.File; |
| import java.io.IOException; |
| |
| import javax.xml.bind.UnmarshallerHandler; |
| import javax.xml.bind.Unmarshaller; |
| import javax.xml.bind.JAXBException; |
| import javax.xml.bind.JAXBContext; |
| |
| import org.apache.commons.jelly.TagSupport; |
| import org.apache.commons.jelly.XMLOutput; |
| import org.apache.commons.jelly.MissingAttributeException; |
| import org.apache.commons.jelly.JellyTagException; |
| |
| import org.apache.ws.jaxme.generator.Generator; |
| import org.apache.ws.jaxme.generator.SchemaReader; |
| import org.apache.ws.jaxme.generator.sg.impl.JAXBSchemaReader; |
| import org.apache.ws.jaxme.generator.sg.SchemaSG; |
| import org.apache.ws.jaxme.generator.impl.GeneratorImpl; |
| |
| import org.xml.sax.SAXException; |
| |
| /** |
| * <p>Unmarshalls xml documents into java objects.</p> |
| * <p> |
| * This tag unmarshalls the xml content contained |
| * into the JaxMe generated java objects in the packages specified. |
| * </p> |
| * |
| * @author <a href="mailto:joe@ispsoft.de">Jochen Wiedmann</a> |
| * @author <a href="mailto:commons-dev at jakarta.apache.org">Jakarta Commons Development Team</a> |
| * @version $Revision: 1.2 $ |
| */ |
| public class UnmarshallTag extends TagSupport { |
| |
| private String packages; |
| private String var; |
| |
| public String getPackages() { |
| return packages; |
| } |
| |
| /** |
| * Defines the generated objects to which the xml should be unmarshalled. |
| */ |
| public void setPackages(String packages) { |
| this.packages = packages; |
| } |
| |
| public String getVar() { |
| return var; |
| } |
| |
| /** |
| * Sets the name of the jelly variable to which |
| * the unmarshalled java object should be bound. |
| */ |
| public void setVar(String var) { |
| this.var = var; |
| } |
| |
| public void doTag(XMLOutput output) throws MissingAttributeException, JellyTagException { |
| if (packages == null) { |
| throw new MissingAttributeException( "packages" ); |
| } |
| if ( var == null ) { |
| throw new MissingAttributeException( "var" ); |
| } |
| try { |
| |
| JAXBContext jaxbContext = JAXBContext.newInstance(packages); |
| Unmarshaller unmarshaller = jaxbContext.createUnmarshaller(); |
| UnmarshallerHandler handler = unmarshaller.getUnmarshallerHandler(); |
| |
| handler.startDocument(); |
| |
| XMLOutput newOutput = new XMLOutput( handler ); |
| |
| invokeBody(newOutput); |
| handler.endDocument(); |
| |
| Object result = handler.getResult(); |
| context.setVariable( var, result ); |
| |
| } catch (JAXBException ex) { |
| throw new JellyTagException(ex); |
| } catch (SAXException ex) { |
| throw new JellyTagException(ex); |
| } |
| |
| } |
| } |