Android Properties Write writeAsJAR(File dest, String propsFileName, Properties props)

Description

write As JAR

License

Apache License

Declaration

public static void writeAsJAR(File dest, String propsFileName,
            Properties props) throws FileNotFoundException, IOException 

Method Source Code

//package com.java2s;
/*// ww  w .  ja va2  s .c  om
 * Copyright 2004-2005 Germinus XXI, Liferay LLC
 *
 * 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.
 * 
 * This is a derived work from source code taken from Liferay.
 */

import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.ByteArrayOutputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.FileReader;
import java.io.FileWriter;
import java.io.IOException;

import java.util.Enumeration;

import java.util.Properties;
import java.util.jar.JarEntry;
import java.util.jar.JarOutputStream;

public class Main {
    public static void writeAsJAR(File dest, String propsFileName,
            Properties props) throws FileNotFoundException, IOException {
        JarOutputStream out = new JarOutputStream(
                new FileOutputStream(dest));
        JarEntry propertiesFile = new JarEntry(propsFileName);
        propertiesFile.setExtra(propertiesToString(props).getBytes());
        out.putNextEntry(propertiesFile);
        out.close();
    }

    public static byte[] getBytes(File file) throws IOException {
        if (file == null || !file.exists()) {
            return null;
        }

        ByteArrayOutputStream out = new ByteArrayOutputStream();
        FileInputStream in = new FileInputStream(file);

        int c = in.read();

        while (c != -1) {
            out.write(c);
            c = in.read();
        }

        in.close();
        out.close();

        return out.toByteArray();
    }

    public static String propertiesToString(Properties p) {
        StringBuffer sb = new StringBuffer();

        Enumeration enu = p.propertyNames();

        while (enu.hasMoreElements()) {
            String key = (String) enu.nextElement();

            sb.append(key);
            sb.append("=");
            sb.append(p.getProperty(key));
            sb.append("\n");
        }

        return sb.toString();
    }

    public static boolean exists(String fileName) {
        File file = new File(fileName);

        return file.exists();
    }

    public static String read(String fileName) throws IOException {
        return read(new File(fileName));
    }

    public static String read(File file) throws IOException {
        BufferedReader br = new BufferedReader(new FileReader(file));

        StringBuffer sb = new StringBuffer();
        String line = null;

        while ((line = br.readLine()) != null) {
            sb.append(line).append('\n');
        }

        br.close();

        return sb.toString().trim();
    }

    public static void write(File file, String s) throws IOException {
        if (file.getParent() != null) {
            mkdirs(file.getParent());
        }

        BufferedWriter bw = new BufferedWriter(new FileWriter(file));

        bw.flush();
        bw.write(s);
        bw.flush();

        bw.close();
    }

    public static void write(String fileName, String s) throws IOException {
        write(new File(fileName), s);
    }

    public static void write(String pathName, String fileName, String s)
            throws IOException {

        write(new File(pathName, fileName), s);
    }

    public static void write(File dest, Properties props)
            throws IOException {
        write(dest, propertiesToString(props));
    }

    public static void mkdirs(String pathName) {
        File file = new File(pathName);
        file.mkdirs();
    }
}

Related

1. write(File dest, Properties props)