001: /*
002: * $Id: FuncSerialize.java,v 1.3 2002/03/13 01:46:17 skavish Exp $
003: *
004: * ===========================================================================
005: *
006: * The JGenerator Software License, Version 1.0
007: *
008: * Copyright (c) 2000 Dmitry Skavish (skavish@usa.net). All rights reserved.
009: *
010: * Redistribution and use in source and binary forms, with or without
011: * modification, are permitted provided that the following conditions are met:
012: *
013: * 1. Redistributions of source code must retain the above copyright
014: * notice, this list of conditions and the following disclaimer.
015: *
016: * 2. Redistributions in binary form must reproduce the above copyright
017: * notice, this list of conditions and the following disclaimer in
018: * the documentation and/or other materials provided with the
019: * distribution.
020: *
021: * 3. The end-user documentation included with the redistribution, if
022: * any, must include the following acknowlegement:
023: * "This product includes software developed by Dmitry Skavish
024: * (skavish@usa.net, http://www.flashgap.com/)."
025: * Alternately, this acknowlegement may appear in the software itself,
026: * if and wherever such third-party acknowlegements normally appear.
027: *
028: * 4. The name "The JGenerator" must not be used to endorse or promote
029: * products derived from this software without prior written permission.
030: * For written permission, please contact skavish@usa.net.
031: *
032: * 5. Products derived from this software may not be called "The JGenerator"
033: * nor may "The JGenerator" appear in their names without prior written
034: * permission of Dmitry Skavish.
035: *
036: * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
037: * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
038: * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
039: * DISCLAIMED. IN NO EVENT SHALL DMITRY SKAVISH OR THE OTHER
040: * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
041: * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
042: * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
043: * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
044: * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
045: * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
046: * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
047: * SUCH DAMAGE.
048: *
049: */
050:
051: package org.openlaszlo.iv.flash.xml.apache.functions;
052:
053: import org.w3c.dom.*;
054:
055: import org.apache.xpath.functions.*;
056: import org.apache.xpath.objects.*;
057: import org.apache.xpath.*;
058: import org.apache.xml.serialize.*;
059: import org.apache.xml.dtm.*;
060:
061: import java.io.*;
062: import org.openlaszlo.iv.flash.util.*;
063:
064: /**
065: * Serialize specified node
066: */
067: public class FuncSerialize extends FunctionDef1Arg {
068:
069: /**
070: * Execute the function. The function must return a valid object.
071: *
072: * @param xctxt The current execution context.
073: * @return A valid XObject.
074: *
075: * @throws javax.xml.transform.TransformerException
076: */
077: public XObject execute(XPathContext xctxt)
078: throws javax.xml.transform.TransformerException {
079:
080: int context = getArg0AsNode(xctxt);
081:
082: Node node = null;
083: if (context != DTM.NULL) {
084: DTM dtm = xctxt.getDTM(context);
085: node = dtm.getNode(context);
086: }
087:
088: if (node != null)
089: return serialize(node, Method.XML, 0);
090: return null;
091: }
092:
093: static XObject serialize(Node node, String method, int indent) {
094:
095: OutputFormat format = new OutputFormat(method, null, indent > 0);
096: format.setOmitXMLDeclaration(true);
097: format.setIndent(indent);
098:
099: Serializer ser = SerializerFactory.getSerializerFactory(method)
100: .makeSerializer(format);
101: StringWriter ow = new StringWriter();
102: ser.setOutputCharStream(ow);
103:
104: try {
105: DOMSerializer domser = ser.asDOMSerializer();
106:
107: switch (node.getNodeType()) {
108: case Node.ELEMENT_NODE:
109: domser.serialize((Element) node);
110: break;
111: case Node.DOCUMENT_NODE:
112: domser.serialize((Document) node);
113: break;
114: }
115: } catch (IOException e) {
116: Log.logRB(e);
117: }
118:
119: return new XString(ow.toString());
120: }
121: }
|