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/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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.jasper.compiler;
import java.io.FileNotFoundException;
import java.io.IOException;
import org.apache.jasper.JasperException;
import org.apache.jasper.JspCompilationContext;
import org.apache.jasper.Options;
/**
*
* @author Petr Jiricka
*/
public class ExtractPageData {
private final JspCompilationContext ctxt;
private final Options options;
private final CompilerHacks compHacks;
private boolean isXml;
private String sourceEnc;
/** Creates a new instance of ExtractPageData */
public ExtractPageData(JspCompilationContext ctxt) {
this.ctxt = ctxt;
options = ctxt.getOptions();
compHacks = new CompilerHacks(ctxt);
}
public boolean isXMLSyntax() throws JasperException, FileNotFoundException, IOException {
if (sourceEnc == null) {
extractPageData();
}
return isXml;
}
public String getEncoding() throws JasperException, FileNotFoundException, IOException {
if (sourceEnc == null) {
extractPageData();
}
return sourceEnc;
}
private void extractPageData() throws JasperException, FileNotFoundException, IOException {
// the following also sets up ErrorDispatcher and PageInfo in the compiler
Compiler comp = compHacks.getCompiler();
PageInfo pageInfo = comp.getPageInfo();
JspConfig jspConfig = options.getJspConfig();
JspProperty jspProperty = jspConfig.findJspProperty(ctxt.getJspFile());
/*
* If the current uri is matched by a pattern specified in
* a jsp-property-group in web.xml, initialize pageInfo with
* those properties.
*/
pageInfo.setELIgnored(JspUtil.booleanValue(jspProperty.isELIgnored()));
pageInfo.setScriptingInvalid(JspUtil.booleanValue(jspProperty.isScriptingInvalid()));
if (jspProperty.getIncludePrelude() != null) {
pageInfo.setIncludePrelude(jspProperty.getIncludePrelude());
}
if (jspProperty.getIncludeCoda() != null) {
pageInfo.setIncludeCoda(jspProperty.getIncludeCoda());
}
/*String javaFileName = ctxt.getServletJavaFileName();
// Setup the ServletWriter
String javaEncoding = ctxt.getOptions().getJavaEncoding();
OutputStreamWriter osw = null;
try {
osw = new OutputStreamWriter(new FileOutputStream(javaFileName),
javaEncoding);
} catch (UnsupportedEncodingException ex) {
errDispatcher.jspError("jsp.error.needAlternateJavaEncoding", javaEncoding);
}
ServletWriter writer = new ServletWriter(new PrintWriter(osw));
ctxt.setWriter(writer);*/
// Reset the temporary variable counter for the generator.
JspUtil.resetTemporaryVariableName();
// Parse the file
ParserControllerProxy parserCtl = new ParserControllerProxy(ctxt, comp);
parserCtl.extractSyntaxAndEncoding(ctxt.getJspFile());
isXml = parserCtl.isXml;
sourceEnc = parserCtl.sourceEnc;
}
}
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