/*
* IzPack - Copyright 2001-2008 Julien Ponge, All Rights Reserved.
*
* http://izpack.org/
* http://izpack.codehaus.org/
*
* Copyright 2001 Johannes Lehtinen
*
* 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.
*/
package com.izforge.izpack.installer;
import com.izforge.izpack.ParsableFile;
import com.izforge.izpack.util.OsConstraint;
import com.izforge.izpack.util.VariableSubstitutor;
import java.io.*;
import java.util.Collection;
import java.util.Iterator;
/**
* The script parser classe.
*
* @author Julien Ponge
* @author Johannes Lehtinen
*/
public class ScriptParser
{
/**
* The install path.
*/
public final static String INSTALL_PATH = "INSTALL_PATH";
/**
* The Java home path.
*/
public final static String JAVA_HOME = "JAVA_HOME";
/**
* The ClassPath.
*/
public final static String CLASS_PATH = "CLASS_PATH";
/**
* The user home path.
*/
public final static String USER_HOME = "USER_HOME";
/**
* The user name.
*/
public final static String USER_NAME = "USER_NAME";
/**
* The hostname.
*/
public final static String HOST_NAME = "HOST_NAME";
/**
* The ip address.
*/
public final static String IP_ADDRESS = "IP_ADDRESS";
/**
* The file separator character.
*/
public final static String FILE_SEPARATOR = "FILE_SEPARATOR";
/**
* The application name.
*/
public final static String APP_NAME = "APP_NAME";
/**
* The application URL.
*/
public final static String APP_URL = "APP_URL";
/**
* The application version.
*/
public final static String APP_VER = "APP_VER";
/**
* The language IS03 code.
*/
public final static String ISO3_LANG = "ISO3_LANG";
/**
* The language code as _ll_CC like used with ResourceBoundle.
*/
public final static String LOCALE = "LOCALE_IDENTIFIER";
/**
* The files to parse.
*/
private Collection<ParsableFile> files;
/**
* The variables substituror.
*/
private VariableSubstitutor vs;
/**
* Constructs a new parser. The parsable files specified must have pretranslated paths
* (variables expanded and file separator characters converted if necessary).
*
* @param files the parsable files to process
* @param vs the variable substitutor to use
*/
public ScriptParser(Collection<ParsableFile> files, VariableSubstitutor vs)
{
this.files = files;
this.vs = vs;
}
/**
* Parses the files.
*
* @throws Exception Description of the Exception
*/
public void parseFiles() throws Exception
{
// Parses the files
Iterator<ParsableFile> iter = files.iterator();
while (iter.hasNext())
{
// If interrupt is desired, return immediately.
if (Unpacker.isInterruptDesired())
{
return;
}
// Create a temporary file for the parsed data
// (Use the same directory so that renaming works later)
ParsableFile pfile = iter.next();
// check whether the OS matches
if (!OsConstraint.oneMatchesCurrentSystem(pfile.osConstraints))
{
continue;
}
File file = new File(pfile.path);
File parsedFile = File.createTempFile("izpp", null, file.getParentFile());
// Parses the file
// (Use buffering because substitutor processes byte at a time)
FileInputStream inFile = new FileInputStream(file);
BufferedInputStream in = new BufferedInputStream(inFile, 5120);
FileOutputStream outFile = new FileOutputStream(parsedFile);
BufferedOutputStream out = new BufferedOutputStream(outFile, 5120);
vs.substitute(in, out, pfile.type, pfile.encoding);
in.close();
out.close();
// Replace the original file with the parsed one
file.delete();
if (!parsedFile.renameTo(file))
{
throw new IOException("Could not rename file " + parsedFile + " to " + file);
}
}
}
}