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/*
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* The Apache Software License, Version 1.1
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*
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* Copyright (c) 2001-2003 The Apache Software Foundation. All rights
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* reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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*
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* 3. The end-user documentation included with the redistribution, if
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* any, must include the following acknowlegement:
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* "This product includes software developed by the
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* Apache Software Foundation (http://www.apache.org/)."
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* Alternately, this acknowlegement may appear in the software itself,
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* if and wherever such third-party acknowlegements normally appear.
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*
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* 4. The names "Ant" and "Apache Software
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* Foundation" must not be used to endorse or promote products derived
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* from this software without prior written permission. For written
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* permission, please contact apache@apache.org.
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*
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* 5. Products derived from this software may not be called "Apache"
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* nor may "Apache" appear in their names without prior written
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* permission of the Apache Group.
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*
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* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
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* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
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* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
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* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
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* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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* ====================================================================
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*
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* This software consists of voluntary contributions made by many
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* individuals on behalf of the Apache Software Foundation. For more
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* information on the Apache Software Foundation, please see
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* <http://www.apache.org/>.
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*/
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package org.apache.tools.ant.taskdefs.optional.junit;
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import java.io.BufferedOutputStream;
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import java.io.ByteArrayOutputStream;
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import java.io.File;
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import java.io.FileOutputStream;
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import java.io.IOException;
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import java.io.OutputStream;
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import java.io.PrintWriter;
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import java.io.StringWriter;
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import java.lang.reflect.Field;
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import org.apache.tools.ant.BuildException;
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import org.apache.tools.ant.Project;
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/**
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* Command class that encapsulate specific behavior for each
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* Xalan version. The right executor will be instantiated at
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* runtime via class lookup. For instance, it will check first
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* for Xalan2, then for Xalan1.
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*/
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abstract class XalanExecutor {
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/** the transformer caller */
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protected AggregateTransformer caller;
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/** set the caller for this object. */
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private final void setCaller(AggregateTransformer caller){
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this.caller = caller;
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}
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/** get the appropriate stream based on the format (frames/noframes) */
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protected OutputStream getOutputStream() throws IOException {
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if (AggregateTransformer.FRAMES.equals(caller.format)){
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// dummy output for the framed report
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// it's all done by extension...
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return new ByteArrayOutputStream();
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} else {
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return new BufferedOutputStream(new FileOutputStream(new File(caller.toDir, "junit-noframes.html")));
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}
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}
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/** override to perform transformation */
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abstract void execute() throws Exception;
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/**
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* Create a valid Xalan executor. It checks first if Xalan2 is
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* present, if not it checks for xalan1. If none is available, it
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* fails.
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* @param caller object containing the transformation information.
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* @throws BuildException thrown if it could not find a valid xalan
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* executor.
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*/
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static XalanExecutor newInstance(AggregateTransformer caller) throws BuildException {
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Class procVersion = null;
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XalanExecutor executor = null;
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try {
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procVersion = Class.forName("org.apache.xalan.processor.XSLProcessorVersion");
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executor = (XalanExecutor) Class.forName(
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"org.apache.tools.ant.taskdefs.optional.junit.Xalan2Executor").newInstance();
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} catch (Exception xalan2missing){
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StringWriter swr = new StringWriter();
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xalan2missing.printStackTrace(new PrintWriter(swr));
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caller.task.log("Didn't find Xalan2.", Project.MSG_DEBUG);
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caller.task.log(swr.toString(), Project.MSG_DEBUG);
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try {
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procVersion = Class.forName("org.apache.xalan.xslt.XSLProcessorVersion");
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executor = (XalanExecutor) Class.forName(
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"org.apache.tools.ant.taskdefs.optional.junit.Xalan1Executor").newInstance();
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} catch (Exception xalan1missing){
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swr = new StringWriter();
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xalan1missing.printStackTrace(new PrintWriter(swr));
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caller.task.log("Didn't find Xalan1.", Project.MSG_DEBUG);
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caller.task.log(swr.toString(), Project.MSG_DEBUG);
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throw new BuildException("Could not find xalan2 nor xalan1 in the classpath. Check http://xml.apache.org/xalan-j");
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}
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}
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String version = getXalanVersion(procVersion);
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caller.task.log("Using Xalan version: " + version);
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executor.setCaller(caller);
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return executor;
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}
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/** pretty useful data (Xalan version information) to display. */
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private static String getXalanVersion(Class procVersion) {
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try {
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Field f = procVersion.getField("S_VERSION");
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return f.get(null).toString();
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} catch (Exception e){
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return "?";
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}
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}
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}
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