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 1997-2008 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:
042: package org.apache.jasper.compiler;
043:
044: import java.io.FileNotFoundException;
045: import java.io.IOException;
046: import org.apache.jasper.JasperException;
047: import org.apache.jasper.JspCompilationContext;
048: import org.apache.jasper.Options;
049:
050: /**
051: *
052: * @author Petr Jiricka
053: */
054: public class ExtractPageData {
055:
056: private final JspCompilationContext ctxt;
057:
058: private final Options options;
059: private final CompilerHacks compHacks;
060:
061: private boolean isXml;
062: private String sourceEnc;
063:
064: /** Creates a new instance of ExtractPageData */
065: public ExtractPageData(JspCompilationContext ctxt) {
066: this .ctxt = ctxt;
067: options = ctxt.getOptions();
068: compHacks = new CompilerHacks(ctxt);
069: }
070:
071: public boolean isXMLSyntax() throws JasperException,
072: FileNotFoundException, IOException {
073: if (sourceEnc == null) {
074: extractPageData();
075: }
076: return isXml;
077: }
078:
079: public String getEncoding() throws JasperException,
080: FileNotFoundException, IOException {
081: if (sourceEnc == null) {
082: extractPageData();
083: }
084: return sourceEnc;
085: }
086:
087: private void extractPageData() throws JasperException,
088: FileNotFoundException, IOException {
089:
090: // the following also sets up ErrorDispatcher and PageInfo in the compiler
091: Compiler comp = compHacks.getCompiler();
092: PageInfo pageInfo = comp.getPageInfo();
093:
094: JspConfig jspConfig = options.getJspConfig();
095: JspProperty jspProperty = jspConfig.findJspProperty(ctxt
096: .getJspFile());
097:
098: /*
099: * If the current uri is matched by a pattern specified in
100: * a jsp-property-group in web.xml, initialize pageInfo with
101: * those properties.
102: */
103: pageInfo.setELIgnored(JspUtil.booleanValue(jspProperty
104: .isELIgnored()));
105: pageInfo.setScriptingInvalid(JspUtil.booleanValue(jspProperty
106: .isScriptingInvalid()));
107: if (jspProperty.getIncludePrelude() != null) {
108: pageInfo.setIncludePrelude(jspProperty.getIncludePrelude());
109: }
110: if (jspProperty.getIncludeCoda() != null) {
111: pageInfo.setIncludeCoda(jspProperty.getIncludeCoda());
112: }
113: /*String javaFileName = ctxt.getServletJavaFileName();
114:
115: // Setup the ServletWriter
116: String javaEncoding = ctxt.getOptions().getJavaEncoding();
117: OutputStreamWriter osw = null;
118: try {
119: osw = new OutputStreamWriter(new FileOutputStream(javaFileName),
120: javaEncoding);
121: } catch (UnsupportedEncodingException ex) {
122: errDispatcher.jspError("jsp.error.needAlternateJavaEncoding", javaEncoding);
123: }
124:
125: ServletWriter writer = new ServletWriter(new PrintWriter(osw));
126: ctxt.setWriter(writer);*/
127:
128: // Reset the temporary variable counter for the generator.
129: JspUtil.resetTemporaryVariableName();
130:
131: // Parse the file
132: ParserControllerProxy parserCtl = new ParserControllerProxy(
133: ctxt, comp);
134: parserCtl.extractSyntaxAndEncoding(ctxt.getJspFile());
135:
136: isXml = parserCtl.isXml;
137: sourceEnc = parserCtl.sourceEnc;
138: }
139:
140: }
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