package org.apache.axis2.util; | |
import org.apache.commons.logging.Log; | |
import org.apache.commons.logging.LogFactory; | |
import java.io.File; | |
import java.io.FileInputStream; | |
import java.io.FileOutputStream; | |
import java.io.InputStream; | |
import java.io.OutputStream; | |
import java.lang.reflect.Method; | |
/* | |
* Copyright 2004,2005 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. | |
*/ | |
/** | |
* An XML pretty printer based on jtidy (http://sourceforge.net/projects/jtidy) | |
* The Jtidy jar needs to be in classpath for this to work and can be found at | |
* http://sourceforge.net/project/showfiles.php?group_id=13153 | |
* | |
*/ | |
public class XMLPrettyPrinter { | |
private static final Log log = LogFactory.getLog(XMLPrettyPrinter.class); | |
private static final String PRETTIFIED_SUFFIX = ".prettyfied"; | |
/** | |
* Pretty prints contents of the java source file. | |
* | |
* @param file | |
*/ | |
public static void prettify(File file) { | |
try{ | |
// Create an instance of the Jalopy bean | |
Class clazz = Loader.loadClass("org.w3c.tidy.Tidy"); | |
Object prettifier = clazz.newInstance(); | |
//set the input to be xml | |
Method setXmlInFlagMethod = clazz.getMethod( | |
"setXmlTags", | |
new Class[]{boolean.class}); | |
setXmlInFlagMethod.invoke(prettifier, | |
new Object[]{Boolean.TRUE}); | |
//set the output to be xml | |
Method setXmlOutFlagMethod = clazz.getMethod( | |
"setXmlOut", | |
new Class[]{boolean.class}); | |
setXmlOutFlagMethod.invoke(prettifier, | |
new Object[]{Boolean.TRUE}); | |
//create the input stream | |
InputStream input = new FileInputStream(file); | |
//create a new file with "prettyfied" attached | |
// to existing file name | |
String existingFileName = file.getAbsolutePath(); | |
String tempFileName = existingFileName + PRETTIFIED_SUFFIX; | |
File tempFile = new File(tempFileName); | |
FileOutputStream tempFileOutputStream = new FileOutputStream(tempFile); | |
//Call the pretty printer | |
Method parsr = clazz.getMethod("parse", new Class[]{ | |
InputStream.class, | |
OutputStream.class}); | |
parsr.invoke(prettifier, new Object[]{input, | |
tempFileOutputStream}); | |
//rename and restore the pretty printed one as the original | |
//first close the streams. if not this may cause the | |
// files not to be renamed | |
input.close(); | |
tempFileOutputStream.close(); | |
//delete the original | |
file.delete(); | |
if (!tempFile.renameTo(new File(existingFileName))){ | |
throw new Exception("File renaming failed!" + existingFileName); | |
} | |
log.debug("Pretty printed file : " + file); | |
} catch (ClassNotFoundException e) { | |
log.debug("Tidy not found - unable to pretty print " + file); | |
} catch (Exception e) { | |
log.warn("Exception occurred while trying to pretty print file " + file, e); | |
} catch (Throwable t) { | |
log.debug("Exception occurred while trying to pretty print file " + file, t); | |
} | |
} | |
} |