Java Jar Zip File addFileToJar(File fileOrDirectoryToAdd, File extractedJarPath, JarOutputStream target)

Description

add File To Jar

License

Open Source License

Declaration

public static void addFileToJar(File fileOrDirectoryToAdd, File extractedJarPath, JarOutputStream target)
            throws IOException 

Method Source Code

//package com.java2s;
//License from project: Open Source License 

import java.io.BufferedInputStream;
import java.io.File;
import java.io.FileInputStream;

import java.io.IOException;

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

public class Main {
    public static void addFileToJar(File fileOrDirectoryToAdd, File extractedJarPath, JarOutputStream target)
            throws IOException {
        String relPath = "";
        if (!fileOrDirectoryToAdd.getAbsolutePath().equals(extractedJarPath.getAbsolutePath())) {
            String fileToAddCanonicalPath = fileOrDirectoryToAdd.getCanonicalPath();
            int relStart = extractedJarPath.getCanonicalPath().length() + 1;
            int relEnd = fileOrDirectoryToAdd.getCanonicalPath().length();
            String d = fileToAddCanonicalPath.substring(relStart, relEnd);
            relPath = d.replace("\\", "/");
        }/*from   w w w  .j  a va2  s .c  o m*/
        BufferedInputStream in = null;
        try {
            if (fileOrDirectoryToAdd.isDirectory()) {
                if (!relPath.isEmpty()) {
                    if (!relPath.endsWith("/")) {
                        relPath += "/";
                    }
                    JarEntry entry = new JarEntry(relPath);
                    entry.setTime(fileOrDirectoryToAdd.lastModified());
                    target.putNextEntry(entry);
                    target.closeEntry();
                }
                for (File nestedFile : fileOrDirectoryToAdd.listFiles()) {
                    addFileToJar(nestedFile, extractedJarPath, target);
                }
                return;
            }

            JarEntry entry = new JarEntry(relPath);
            entry.setTime(fileOrDirectoryToAdd.lastModified());
            target.putNextEntry(entry);
            in = new BufferedInputStream(new FileInputStream(fileOrDirectoryToAdd));

            byte[] buffer = new byte[1024];
            while (true) {
                int count = in.read(buffer);
                if (count == -1) {
                    break;
                }
                target.write(buffer, 0, count);
            }
            target.closeEntry();
        } finally {
            if (in != null) {
                in.close();
            }
        }
    }
}

Related

1. addFileToJar(File baseDir, File src, JarOutputStream zOut)
2. addFileToJar(File file, ZipOutputStream zipStream, String path)
3. addFileToJar(JarOutputStream jar, InputStream file, String path)
4. addJar(File path)
5. addJarLibralyClassPath(Object classLoaderMakedObject, File jarPath)
6. addJarLibralySystemClassPath(File jarPath)