001: /*
002: * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
003: *
004: * Copyright 1997-2007 Sun Microsystems, Inc. All rights reserved.
005: *
006: * The contents of this file are subject to the terms of either the GNU
007: * General Public License Version 2 only ("GPL") or the Common
008: * Development and Distribution License("CDDL") (collectively, the
009: * "License"). You may not use this file except in compliance with the
010: * License. You can obtain a copy of the License at
011: * http://www.netbeans.org/cddl-gplv2.html
012: * or nbbuild/licenses/CDDL-GPL-2-CP. See the License for the
013: * specific language governing permissions and limitations under the
014: * License. When distributing the software, include this License Header
015: * Notice in each file and include the License file at
016: * nbbuild/licenses/CDDL-GPL-2-CP. Sun designates this
017: * particular file as subject to the "Classpath" exception as provided
018: * by Sun in the GPL Version 2 section of the License file that
019: * accompanied this code. If applicable, add the following below the
020: * License Header, with the fields enclosed by brackets [] replaced by
021: * your own identifying information:
022: * "Portions Copyrighted [year] [name of copyright owner]"
023: *
024: * Contributor(s):
025: *
026: * The Original Software is NetBeans. The Initial Developer of the Original
027: * Software is Sun Microsystems, Inc. Portions Copyright 1997-2007 Sun
028: * Microsystems, Inc. All Rights Reserved.
029: *
030: * If you wish your version of this file to be governed by only the CDDL
031: * or only the GPL Version 2, indicate your decision by adding
032: * "[Contributor] elects to include this software in this distribution
033: * under the [CDDL or GPL Version 2] license." If you do not indicate a
034: * single choice of license, a recipient has the option to distribute
035: * your version of this file under either the CDDL, the GPL Version 2 or
036: * to extend the choice of license to its licensees as provided above.
037: * However, if you add GPL Version 2 code and therefore, elected the GPL
038: * Version 2 license, then the option applies only if the new code is
039: * made subject to such option by the copyright holder.
040: */
041: package org.netbeans.modules.sql.framework.ui.editor.property.impl;
042:
043: import java.io.IOException;
044: import java.io.InputStream;
045: import java.io.OutputStreamWriter;
046: import java.io.StringWriter;
047: import java.io.Writer;
048: import javax.xml.parsers.SAXParser;
049: import javax.xml.parsers.SAXParserFactory;
050: import org.xml.sax.Attributes;
051: import org.xml.sax.SAXException;
052: import org.xml.sax.helpers.DefaultHandler;
053:
054: /**
055: * @author Ritesh Adval
056: * @version $Revision$
057: */
058: public class TemplateParser extends DefaultHandler {
059:
060: private static Writer out;
061: private TemplateFactory factory;
062:
063: public TemplateParser() {
064: }
065:
066: public TemplateParser(InputStream stream, TemplateFactory fac) {
067: this .factory = fac;
068: init(stream);
069: }
070:
071: @Override
072: public void characters(char[] buf, int offset, int len)
073: throws SAXException {
074: String s = new String(buf, offset, len);
075: showData(s);
076: }
077:
078: // ===========================================================
079: // Methods in SAX DocumentHandler
080: // ===========================================================
081:
082: @Override
083: public void endDocument() throws SAXException {
084: try {
085: newLine();
086: out.flush();
087: } catch (IOException e) {
088: throw new SAXException("I/O error", e);
089: }
090: }
091:
092: // SAX 2.0
093: @Override
094: public void endElement(String uri, String localName, String qName)
095: throws SAXException {
096: showData("</" + qName + ">");
097: if (factory != null) {
098: factory.endElement(uri, localName, qName);
099: }
100: }
101:
102: @Override
103: public void startDocument() throws SAXException {
104: showData("<?xml version='1.0' encoding='UTF-8'?>");
105: newLine();
106: }
107:
108: // SAX 2.0
109: @Override
110: public void startElement(String uri, String localName,
111: String qName, Attributes attrs) throws SAXException {
112: showData("<" + qName);
113: if (attrs != null) {
114: for (int i = 0; i < attrs.getLength(); i++) {
115: showData(" ");
116: showData(attrs.getQName(i) + "=\"" + attrs.getValue(i)
117: + "\"");
118: }
119: }
120: showData(">");
121: if (factory != null) {
122: factory.startElement(uri, localName, qName, attrs);
123: }
124: }
125:
126: private void init(InputStream stream) {
127: // Use the default (non-validating) parser
128: SAXParserFactory saxpFactory = SAXParserFactory.newInstance();
129: try {
130: // Set up output stream
131: if (Boolean
132: .getBoolean("org.netbeans.modules.sql.framework.ui.editor.property.impl.TemplateParser.showOutput")) {
133: out = new OutputStreamWriter(System.out, "UTF8");
134: } else {
135: out = new StringWriter(512);
136: }
137:
138: // Parse the input
139: SAXParser saxParser = saxpFactory.newSAXParser();
140: saxParser.parse(stream, this );
141: } catch (Exception t) {
142: t.printStackTrace();
143: }
144: }
145:
146: // ===========================================================
147: // Helpers Methods
148: // ===========================================================
149:
150: // Start a new line
151: private void newLine() throws SAXException {
152: String lineEnd = System.getProperty("line.separator");
153: try {
154: out.write(lineEnd);
155: } catch (IOException e) {
156: throw new SAXException("I/O error", e);
157: }
158: }
159:
160: // Wrap I/O exceptions in SAX exceptions, to
161: // suit handler signature requirements
162: private void showData(String s) throws SAXException {
163: try {
164: out.write(s);
165: out.flush();
166: } catch (IOException e) {
167: throw new SAXException("I/O error", e);
168: }
169: }
170: }
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