/* **********************************************************************
/*
* NOTE: This copyright does *not* cover user programs that use Hyperic
* program services by normal system calls through the application
* program interfaces provided as part of the Hyperic Plug-in Development
* Kit or the Hyperic Client Development Kit - this is merely considered
* normal use of the program, and does *not* fall under the heading of
* "derived work".
*
* Copyright (C) [2004-2012], VMware, Inc.
* This file is part of Hyperic.
*
* Hyperic is free software; you can redistribute it and/or modify
* it under the terms version 2 of the GNU General Public License as
* published by the Free Software Foundation. This program is distributed
* in the hope that it will be useful, but WITHOUT ANY WARRANTY; without
* even the implied warranty of MERCHANTABILITY or FITNESS FOR A
* PARTICULAR PURPOSE. See the GNU General Public License for more
* details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
* USA.
*/
package org.hyperic.tools.ant;
import java.io.ByteArrayInputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.lang.reflect.Method;
import java.util.HashMap;
import java.util.Map;
import java.util.Properties;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
public class PropertiesFileMergerTask extends Properties{
private static Method saveConvertMethod ;
private String fileContent ;
private Map<String,String[]> delta ;
private boolean isLoaded ;
static {
try{
saveConvertMethod = Properties.class.getDeclaredMethod("saveConvert", String.class, boolean.class, boolean.class) ;
saveConvertMethod.setAccessible(true) ;
}catch(Throwable t) {
throw (t instanceof RuntimeException ? (RuntimeException) t: new RuntimeException(t)) ;
}//EO catch block
}//EO static block
public PropertiesFileMergerTask() {
this.delta = new HashMap<String, String[]>() ;
}//EOM
@Override
public synchronized Object put(Object key, Object value) {
Object oPrevious = null ;
try{
oPrevious = super.put(key, value);
if(this.isLoaded && !value.equals(oPrevious)) this.delta.put(key.toString(), new String[] { value.toString(), (String) oPrevious}) ;
return oPrevious ;
}catch(Throwable t) {
t.printStackTrace() ;
throw new RuntimeException(t) ;
}//EO catch block
}//EOM
@Override
public final synchronized Object remove(Object key) {
final Object oExisting = super.remove(key);
this.delta.remove(key) ;
return oExisting ;
}//EOM
public static final PropertiesFileMergerTask load(final File file) throws IOException {
InputStream fis = null, fis1 = null ;
try{
if(!file.exists()) throw new IOException(file + " does not exist or is not readable") ;
//else
final PropertiesFileMergerTask properties = new PropertiesFileMergerTask() ;
fis = new FileInputStream(file) ;
//first read the content into a string
final byte[] arrFileContent = new byte[(int)fis.available()] ;
fis.read(arrFileContent) ;
properties.fileContent = new String(arrFileContent) ;
fis1 = new ByteArrayInputStream(arrFileContent) ;
properties.load(fis1);
// System.out.println(properties.fileContent);
return properties ;
}catch(Throwable t) {
throw (t instanceof IOException ? (IOException)t : new IOException(t)) ;
}finally{
if(fis != null) fis.close() ;
if(fis1 != null) fis1.close() ;
}//EO catch block
}//EOM
@Override
public synchronized void load(InputStream inStream) throws IOException {
try{
super.load(inStream);
}finally{
this.isLoaded = true ;
}//EO catch block
}//EOm
public final void store(final File outputFile, final String comments) throws IOException {
if(this.delta.isEmpty()) return ;
FileOutputStream fos = null ;
String key = null, value = null ;
Pattern pattern = null ;
Matcher matcher = null ;
String[] arrValues = null;
try{
for(Map.Entry<String,String[]> entry : this.delta.entrySet()) {
key = (String) saveConvertMethod.invoke(this, entry.getKey(), true/*escapeSpace*/, true /*escUnicode*/);
arrValues = entry.getValue() ;
value = (String) saveConvertMethod.invoke(this, arrValues[0], false/*escapeSpace*/, true /*escUnicode*/);
//if the arrValues[1] == null then this is a new property
if(arrValues[1] == null) {
this.fileContent = this.fileContent + "\n" + key + "=" + value ;
}else {
//pattern = Pattern.compile(key+"\\s*=(\\s*.*\\s*)"+ arrValues[1].replaceAll("\\s+", "(\\\\s*.*\\\\s*)") , Pattern.MULTILINE) ;
pattern = Pattern.compile(key+"\\s*=.*\n", Pattern.MULTILINE) ;
matcher = pattern.matcher(this.fileContent) ;
this.fileContent = matcher.replaceAll(key + "=" + value) ;
}//EO else if existing property
System.out.println("Adding/Replacing " + key + "-->" + arrValues[1] + " with: " + value) ;
}//EO while there are more entries ;
fos = new FileOutputStream(outputFile) ;
fos.write(this.fileContent.getBytes()) ;
}catch(Throwable t) {
throw (t instanceof IOException ? (IOException)t : new IOException(t)) ;
}finally{
if(fos != null) {
fos.flush() ;
fos.close() ;
}//EO if bw was initialized
}//EO catch block
}//EOM
public static void main(String[] args) throws Throwable {
///FOR DEBUG
String s = " 1 2 4 sdf \\\\\nsdfsd" ;
final Pattern pattern = Pattern.compile("test.prop2\\s*=.*(?:\\\\?\\s*)(\n)" , Pattern.MULTILINE) ;
final Matcher matcher = pattern.matcher("test.prop2="+s) ;
System.out.println(matcher.replaceAll("test.prop2=" + "newvalue$1")) ;
///FOR DEBUG
if(true) return ;
final String path = "/tmp/confs/hq-server-46.conf" ;
final File file = new File(path) ;
final PropertiesFileMergerTask properties = PropertiesFileMergerTask.load(file) ;
/* final Pattern pattern = Pattern.compile("test.prop1\\s*=this(\\s*.*\\s*)is(\\s*.*\\s*)the(\\s*.*\\s*)value" ,
Pattern.MULTILINE) ;
final Matcher matcher = pattern.matcher(properties.fileContent) ;
System.out.println( matcher.replaceAll("test.prop1=new value") ) ;
System.out.println("\n\n--> " + properties.get("test.prop1")) ;*/
final String overridingConfPath = "/tmp/confs/hq-server-5.conf" ;
//final Properties overrdingProperties = new Properties() ;
final FileInputStream fis = new FileInputStream(overridingConfPath) ;
properties.load(fis) ;
fis.close() ;
///properties.putAll(overrdingProperties) ;
final String outputPath = "/tmp/confs/output-hq-server.conf" ;
final File outputFile = new File(outputPath) ;
final String comments = "" ;
properties.store(outputFile, comments) ;
}//EOM
}//EOC