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/*
* $Id: Compare.java,v 1.5 2003/03/07 10:09:30 jeremias Exp $
* ============================================================================
* The Apache Software License, Version 1.1
* ============================================================================
*
* Copyright (C) 1999-2003 The Apache Software Foundation. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modifica-
* tion, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* 3. The end-user documentation included with the redistribution, if any, must
* include the following acknowledgment: "This product includes software
* developed by the Apache Software Foundation (http://www.apache.org/)."
* Alternately, this acknowledgment may appear in the software itself, if
* and wherever such third-party acknowledgments normally appear.
*
* 4. The names "FOP" and "Apache Software Foundation" must not be used to
* endorse or promote products derived from this software without prior
* written permission. For written permission, please contact
* apache@apache.org.
*
* 5. Products derived from this software may not be called "Apache", nor may
* "Apache" appear in their name, without prior written permission of the
* Apache Software Foundation.
*
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED WARRANTIES,
* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
* FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* APACHE SOFTWARE FOUNDATION OR ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLU-
* DING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
* ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
* ============================================================================
*
* This software consists of voluntary contributions made by many individuals
* on behalf of the Apache Software Foundation and was originally created by
* James Tauber <jtauber@jtauber.com>. For more information on the Apache
* Software Foundation, please see <http://www.apache.org/>.
*/
package org.apache.fop.tools.anttasks;
import java.util.Date;
import java.util.List;
import java.util.StringTokenizer;
import java.io.BufferedInputStream;
import java.io.File;
import java.io.IOException;
import java.io.PrintWriter;
import org.apache.tools.ant.BuildException;
import java.text.DateFormat;
/**
* This class is an extension of Ant, a script utility from
* http://ant.apache.org.
* It provides methods to compare two files.
*/
public class Compare {
private static final boolean IDENTICAL_FILES = true;
private static final boolean NOTIDENTICAL_FILES = false;
private String referenceDirectory, testDirectory;
private String[] filenameList;
private String filenames;
private BufferedInputStream oldfileInput;
private BufferedInputStream newfileInput;
/**
* Sets directory for test files.
* @param testDirectory the test directory
*/
public void setTestDirectory(String testDirectory) {
if (!(testDirectory.endsWith("/") | testDirectory.endsWith("\\"))) {
testDirectory += File.separator;
}
this.testDirectory = testDirectory;
}
/**
* Sets directory for reference files.
* @param referenceDirectory the reference directory
*/
public void setReferenceDirectory(String referenceDirectory) {
if (!(referenceDirectory.endsWith("/")
| referenceDirectory.endsWith("\\"))) {
referenceDirectory += File.separator;
}
this.referenceDirectory = referenceDirectory;
}
/**
* Sets the comma-separated list of files to process.
* @param filenames list of files, comma-separated
*/
public void setFilenames(String filenames) {
StringTokenizer tokens = new StringTokenizer(filenames, ",");
List filenameListTmp = new java.util.ArrayList(20);
while (tokens.hasMoreTokens()) {
filenameListTmp.add(tokens.nextToken());
}
filenameList = new String[filenameListTmp.size()];
filenameList = (String[])filenameListTmp.toArray(new String[0]);
}
private boolean compareBytes(File oldFile, File newFile) {
try {
oldfileInput =
new BufferedInputStream(new java.io.FileInputStream(oldFile));
newfileInput =
new BufferedInputStream(new java.io.FileInputStream(newFile));
int charactO = 0;
int charactN = 0;
boolean identical = true;
while (identical & (charactO != -1)) {
if (charactO == charactN) {
charactO = oldfileInput.read();
charactN = newfileInput.read();
} else {
return NOTIDENTICAL_FILES;
}
}
return IDENTICAL_FILES;
} catch (IOException io) {
System.err.println("Task Compare - Error: \n" + io.toString());
}
return NOTIDENTICAL_FILES;
}
private boolean compareFileSize(File oldFile, File newFile) {
if (oldFile.length() != newFile.length()) {
return NOTIDENTICAL_FILES;
} else {
return IDENTICAL_FILES;
}
} // end: compareBytes
private boolean filesExist(File oldFile, File newFile) {
if (!oldFile.exists()) {
System.err.println("Task Compare - ERROR: File "
+ referenceDirectory + oldFile.getName()
+ " doesn't exist!");
return false;
} else if (!newFile.exists()) {
System.err.println("Task Compare - ERROR: File " + testDirectory
+ newFile.getName() + " doesn't exist!");
return false;
} else {
return true;
}
}
private void writeHeader(PrintWriter results) {
String dateTime = DateFormat.getDateTimeInstance(DateFormat.MEDIUM,
DateFormat.MEDIUM).format(new Date());
results.println("<html><head><title>Test Results</title></head><body>\n");
results.println("<h2>Compare Results<br>");
results.println("<font size='1'>created " + dateTime
+ "</font></h2>");
results.println("<table cellpadding='10' border='2'><thead>"
+ "<th align='center'>reference file</th>"
+ "<th align='center'>test file</th>"
+ "<th align='center'>identical?</th></thead>");
}
/**
* Main method of task compare
* @throws BuildException If the execution fails.
*/
public void execute() throws BuildException {
boolean identical = false;
File oldFile;
File newFile;
try {
PrintWriter results =
new PrintWriter(new java.io.FileWriter("results.html"), true);
this.writeHeader(results);
for (int i = 0; i < filenameList.length; i++) {
oldFile = new File(referenceDirectory + filenameList[i]);
newFile = new File(testDirectory + filenameList[i]);
if (filesExist(oldFile, newFile)) {
identical = compareFileSize(oldFile, newFile);
if (identical) {
identical = compareBytes(oldFile, newFile);
}
if (!identical) {
System.out.println("Task Compare: \nFiles "
+ referenceDirectory
+ oldFile.getName() + " - "
+ testDirectory
+ newFile.getName()
+ " are *not* identical.");
results.println("<tr><td><a href='"
+ referenceDirectory
+ oldFile.getName() + "'>"
+ oldFile.getName()
+ "</a> </td><td> <a href='"
+ testDirectory + newFile.getName()
+ "'>" + newFile.getName() + "</a>"
+ " </td><td><font color='red'>No</font></td></tr>");
} else {
results.println("<tr><td><a href='"
+ referenceDirectory
+ oldFile.getName() + "'>"
+ oldFile.getName()
+ "</a> </td><td> <a href='"
+ testDirectory + newFile.getName()
+ "'>" + newFile.getName() + "</a>"
+ " </td><td>Yes</td></tr>");
}
}
}
results.println("</table></html>");
} catch (IOException ioe) {
System.err.println("ERROR: " + ioe);
}
} // end: execute()
}
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