ListDeserializer.java |
/* * The Apache Software License, Version 1.1 * * * Copyright (c) 2001-2003 The Apache Software Foundation. All rights * reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in * the documentation and/or other materials provided with the * distribution. * * 3. The end-user documentation included with the redistribution, * if any, must include the following acknowledgment: * "This product includes software developed by the * Apache Software Foundation (http://www.apache.org/)." * Alternately, this acknowledgment may appear in the software itself, * if and wherever such third-party acknowledgments normally appear. * * 4. The names "Axis" and "Apache Software Foundation" must * not be used to endorse or promote products derived from this * software without prior written permission. For written * permission, please contact apache@apache.org. * * 5. Products derived from this software may not be called "Apache", * nor may "Apache" appear in their name, without prior written * permission of the Apache Software Foundation. * * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE * DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * ==================================================================== * * This software consists of voluntary contributions made by many * individuals on behalf of the Apache Software Foundation. For more * information on the Apache Software Foundation, please see * <http://www.apache.org/>. */ package org.jboss.axis.encoding.ser; import org.jboss.axis.encoding.DeserializationContext; import org.jboss.axis.encoding.DeserializerImpl; import org.jboss.logging.Logger; import org.xml.sax.Attributes; import org.xml.sax.SAXException; import javax.xml.namespace.QName; import java.lang.reflect.Array; import java.lang.reflect.Constructor; import java.util.ArrayList; import java.util.List; import java.util.StringTokenizer; /** * Deserializer for xsd:list * * @author Thomas Diesler (thomas.diesler@jboss.org) */ public class ListDeserializer extends DeserializerImpl { private static Logger log = Logger.getLogger(ListDeserializer.class.getName()); private List valueList = new ArrayList(); private Class javaType; private QName xmlType; public ListDeserializer(Class javaType, QName xmlType) { this.javaType = javaType; this.xmlType = xmlType; } /** * This method is invoked after startElement when the element requires * deserialization (i.e. the element is not an href and the value is not nil.) * <p/> * Simply creates * * @param namespace is the namespace of the element * @param localName is the name of the element * @param prefix is the prefix of the element * @param attributes are the attributes on the element...used to get the type * @param context is the DeserializationContext */ public void onStartElement(String namespace, String localName, String prefix, Attributes attributes, DeserializationContext context) throws SAXException { if (log.isDebugEnabled()) { log.debug("Enter: ListDeserializer::startElement()"); } if (context.isNil(attributes)) { return; } if (log.isDebugEnabled()) { log.debug("Exit: ListDeserializer::startElement()"); } } /** * onEndElement is called by endElement. It is not called * if the element has an href. * * @param namespace is the namespace of the child element * @param localName is the local name of the child element * @param context is the deserialization context */ public void onEndElement(String namespace, String localName, DeserializationContext context) throws SAXException { if (log.isDebugEnabled()) { log.debug("Enter: ListDeserializer::endElement()"); } Class componentType = javaType.getComponentType(); Constructor ctor = null; try { // Get component type string constructor ctor = componentType.getConstructor(new Class[]{String.class}); } catch (NoSuchMethodException e) { throw new IllegalStateException("Cannot obtain string constructor for: " + componentType); } // Build the return object array Object[] objArr = (Object[])Array.newInstance(componentType, valueList.size()); // Fill the object array String strValue = null; try { for (int i = 0; i < valueList.size(); i++) { strValue = (String)valueList.get(i); Object obj = ctor.newInstance(new Object[]{strValue}); objArr[i] = obj; } value = objArr; } catch (Exception e) { throw new IllegalArgumentException("Cannot construct object with: " + strValue); } if (log.isDebugEnabled()) { log.debug("Exit: ListDeserializer::endElement()"); } } /** * Parse the content and construct an Object array from it. */ public void characters(char[] p1, int p2, int p3) throws SAXException { super.characters(p1, p2, p3); String strContent = new String(p1, p2, p3); StringTokenizer st = new StringTokenizer(strContent); while (st.hasMoreTokens()) { String nextToken = st.nextToken(); Object item = getValueAsObject(nextToken); valueList.add(item); } } /** * Get the Object for this token */ private Object getValueAsObject(String token) { return token; } }
ListDeserializer.java |