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/*
* reserved comment block
* DO NOT REMOVE OR ALTER!
*/
/*
* Copyright 2001-2004 The Apache Software Foundation.
*
* Licensed 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.
*/
/*
* $Id: Import.java,v 1.8 2007/04/09 21:30:40 joehw Exp $
*/
package com.sun.org.apache.xalan.internal.xsltc.compiler;
import com.sun.org.apache.xalan.internal.XalanConstants;
import com.sun.org.apache.xalan.internal.utils.SecuritySupport;
import com.sun.org.apache.xalan.internal.xsltc.compiler.util.ClassGenerator;
import com.sun.org.apache.xalan.internal.xsltc.compiler.util.ErrorMsg;
import com.sun.org.apache.xalan.internal.xsltc.compiler.util.MethodGenerator;
import com.sun.org.apache.xalan.internal.xsltc.compiler.util.Type;
import com.sun.org.apache.xalan.internal.xsltc.compiler.util.TypeCheckError;
import com.sun.org.apache.xml.internal.utils.SystemIDResolver;
import java.io.File;
import java.net.URL;
import java.net.MalformedURLException;
import java.util.Enumeration;
import javax.xml.XMLConstants;
import org.xml.sax.InputSource;
import org.xml.sax.XMLReader;
/**
* @author Jacek Ambroziak
* @author Morten Jorgensen
* @author Erwin Bolwidt <ejb@klomp.org>
* @author Gunnlaugur Briem <gthb@dimon.is>
*/
final class Import extends TopLevelElement {
private Stylesheet _imported = null;
public Stylesheet getImportedStylesheet() {
return _imported;
}
public void parseContents(final Parser parser) {
final XSLTC xsltc = parser.getXSLTC();
final Stylesheet context = parser.getCurrentStylesheet();
try {
String docToLoad = getAttribute("href");
if (context.checkForLoop(docToLoad)) {
final ErrorMsg msg = new ErrorMsg(ErrorMsg.CIRCULAR_INCLUDE_ERR,
docToLoad, this);
parser.reportError(Constants.FATAL, msg);
return;
}
InputSource input = null;
XMLReader reader = null;
String currLoadedDoc = context.getSystemId();
SourceLoader loader = context.getSourceLoader();
// Use SourceLoader if available
if (loader != null) {
input = loader.loadSource(docToLoad, currLoadedDoc, xsltc);
if (input != null) {
docToLoad = input.getSystemId();
reader = xsltc.getXMLReader();
} else if (parser.errorsFound()) {
return;
}
}
// No SourceLoader or not resolved by SourceLoader
if (input == null) {
docToLoad = SystemIDResolver.getAbsoluteURI(docToLoad, currLoadedDoc);
String accessError = SecuritySupport.checkAccess(docToLoad,
(String)xsltc.getProperty(XMLConstants.ACCESS_EXTERNAL_STYLESHEET),
XalanConstants.ACCESS_EXTERNAL_ALL);
if (accessError != null) {
final ErrorMsg msg = new ErrorMsg(ErrorMsg.ACCESSING_XSLT_TARGET_ERR,
SecuritySupport.sanitizePath(docToLoad), accessError,
this);
parser.reportError(Constants.FATAL, msg);
return;
}
input = new InputSource(docToLoad);
}
// Return if we could not resolve the URL
if (input == null) {
final ErrorMsg msg =
new ErrorMsg(ErrorMsg.FILE_NOT_FOUND_ERR, docToLoad, this);
parser.reportError(Constants.FATAL, msg);
return;
}
final SyntaxTreeNode root;
if (reader != null) {
root = parser.parse(reader,input);
}
else {
root = parser.parse(input);
}
if (root == null) return;
_imported = parser.makeStylesheet(root);
if (_imported == null) return;
_imported.setSourceLoader(loader);
_imported.setSystemId(docToLoad);
_imported.setParentStylesheet(context);
_imported.setImportingStylesheet(context);
_imported.setTemplateInlining(context.getTemplateInlining());
// precedence for the including stylesheet
final int currPrecedence = parser.getCurrentImportPrecedence();
final int nextPrecedence = parser.getNextImportPrecedence();
_imported.setImportPrecedence(currPrecedence);
context.setImportPrecedence(nextPrecedence);
parser.setCurrentStylesheet(_imported);
_imported.parseContents(parser);
final Enumeration elements = _imported.elements();
final Stylesheet topStylesheet = parser.getTopLevelStylesheet();
while (elements.hasMoreElements()) {
final Object element = elements.nextElement();
if (element instanceof TopLevelElement) {
if (element instanceof Variable) {
topStylesheet.addVariable((Variable) element);
}
else if (element instanceof Param) {
topStylesheet.addParam((Param) element);
}
else {
topStylesheet.addElement((TopLevelElement) element);
}
}
}
}
catch (Exception e) {
e.printStackTrace();
}
finally {
parser.setCurrentStylesheet(context);
}
}
public Type typeCheck(SymbolTable stable) throws TypeCheckError {
return Type.Void;
}
public void translate(ClassGenerator classGen, MethodGenerator methodGen) {
// do nothing
}
}
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