Example usage for java.util.jar JarFile JarFile

Introduction

In this page you can find the example usage for java.util.jar JarFile JarFile.

Prototype

public JarFile(File file) throws IOException 

Source Link

Document

Creates a new JarFile to read from the specified File object.

Usage

From source file:Main.java

public static void main(String[] argv) throws Exception {
    JarFile jarfile = new JarFile("filename.jar");

    Manifest manifest = jarfile.getManifest();

    Map map = manifest.getEntries();

    for (Iterator it = map.keySet().iterator(); it.hasNext();) {
        String entryName = (String) it.next();

        Attributes attrs = (Attributes) map.get(entryName);

        for (Iterator it2 = attrs.keySet().iterator(); it2.hasNext();) {
            Attributes.Name attrName = (Attributes.Name) it2.next();

            String attrValue = attrs.getValue(attrName);
        }/*w w  w . j av a2  s .  c om*/
    }
}

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From source file:Main.java

public static void main(String[] args) throws IOException {

    JarFile jf = new JarFile(args[0]);
    Enumeration e = jf.entries();
    while (e.hasMoreElements()) {
        JarEntry je = (JarEntry) e.nextElement();
        String name = je.getName();

        Attributes a = je.getAttributes();
        if (a != null) {
            Object[] nameValuePairs = a.entrySet().toArray();
            for (int j = 0; j < nameValuePairs.length; j++) {
                System.out.println(nameValuePairs[j]);
            }/*w  w  w.  j  a v  a  2 s .com*/
        }
    }
}

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From source file:JarRead.java

public static void main(String args[]) throws IOException {
    if (args.length != 2) {
        System.out.println("Please provide a JAR filename and file to read");
        System.exit(-1);/*from  www  .  j av  a2  s .co  m*/
    }
    JarFile jarFile = new JarFile(args[0]);
    JarEntry entry = jarFile.getJarEntry(args[1]);
    InputStream input = jarFile.getInputStream(entry);
    process(input);
    jarFile.close();
}

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From source file:MainClass.java

public static void main(String[] args) throws IOException {

    JarFile jf = new JarFile(args[0]);
    Enumeration e = jf.entries();
    while (e.hasMoreElements()) {
        JarEntry je = (JarEntry) e.nextElement();
        String name = je.getName();
        Date lastModified = new Date(je.getTime());
        long uncompressedSize = je.getSize();
        long compressedSize = je.getCompressedSize();

        int method = je.getMethod();

        if (method == ZipEntry.STORED) {
            System.out.println(name + " was stored at " + lastModified);
            System.out.println("with a size of  " + uncompressedSize + " bytes");
        } else if (method == ZipEntry.DEFLATED) {
            System.out.println(name + " was deflated at " + lastModified);
            System.out.println("from  " + uncompressedSize + " bytes to " + compressedSize
                    + " bytes, a savings of " + (100.0 - 100.0 * compressedSize / uncompressedSize) + "%");
        } else {/*from   ww w  . j  a  va2s  .c o  m*/
            System.out.println(name + " was compressed using an unrecognized method at " + lastModified);
            System.out.println("from  " + uncompressedSize + " bytes to " + compressedSize
                    + " bytes, a savings of " + (100.0 - 100.0 * compressedSize / uncompressedSize) + "%");
        }
    }
}

---

From source file:Main.java

public static void main(String[] args) throws IOException {
    JarFile jf = new JarFile("a.jar");
    Enumeration e = jf.entries();
    while (e.hasMoreElements()) {
        JarEntry je = (JarEntry) e.nextElement();
        System.out.println(je.getName());
        long uncompressedSize = je.getSize();
        long compressedSize = je.getCompressedSize();
        long crc = je.getCrc();
        int method = je.getMethod();
        String comment = je.getComment();
        System.out.println(new Date(je.getTime()));
        System.out.println("from  " + uncompressedSize + " bytes to " + compressedSize);
        if (method == ZipEntry.STORED) {
            System.out.println("ZipEntry.STORED");
        } else if (method == ZipEntry.DEFLATED) {
            System.out.println(ZipEntry.DEFLATED);
        }/*from  ww w  . j a v a 2s  .co  m*/
        System.out.println("Its CRC is " + crc);
        System.out.println(comment);
        System.out.println(je.isDirectory());

        Attributes a = je.getAttributes();
        if (a != null) {
            Object[] nameValuePairs = a.entrySet().toArray();
            for (int j = 0; j < nameValuePairs.length; j++) {
                System.out.println(nameValuePairs[j]);
            }
        }
        System.out.println();
    }
}

---

From source file:kilim.tools.DumpClass.java

public static void main(String[] args) throws IOException {
    String name = args.length == 2 ? args[1] : args[0];

    if (name.endsWith(".jar")) {
        try {/*from w w w .  j  ava  2s. c o  m*/
            Enumeration<JarEntry> e = new JarFile(name).entries();
            while (e.hasMoreElements()) {
                ZipEntry en = (ZipEntry) e.nextElement();
                String n = en.getName();
                if (!n.endsWith(".class"))
                    continue;
                n = n.substring(0, n.length() - 6).replace('/', '.');
                new DumpClass(n);
            }
        } catch (Exception e) {
            e.printStackTrace();
        }
    } else {
        new DumpClass(name);
    }
}

---

From source file:net.minecraftforge.fml.common.patcher.GenDiffSet.java

public static void main(String[] args) throws IOException {
    String sourceJar = args[0]; //Clean Vanilla jar minecraft.jar or minecraft_server.jar
    String targetDir = args[1]; //Directory containing obfed output classes, typically mcp/reobf/minecraft
    String deobfData = args[2]; //Path to FML's deobfusication_data.lzma
    String outputDir = args[3]; //Path to place generated .binpatch
    String killTarget = args[4]; //"true" if we should destroy the target file if it generated a successful .binpatch

    LogManager.getLogger("GENDIFF").log(Level.INFO,
            String.format("Creating patches at %s for %s from %s", outputDir, sourceJar, targetDir));
    Delta delta = new Delta();
    FMLDeobfuscatingRemapper remapper = FMLDeobfuscatingRemapper.INSTANCE;
    remapper.setupLoadOnly(deobfData, false);
    JarFile sourceZip = new JarFile(sourceJar);
    boolean kill = killTarget.equalsIgnoreCase("true");

    File f = new File(outputDir);
    f.mkdirs();/*from   www . j  ava  2s  .co m*/

    for (String name : remapper.getObfedClasses()) {
        //            Logger.getLogger("GENDIFF").info(String.format("Evaluating path for data :%s",name));
        String fileName = name;
        String jarName = name;
        if (RESERVED_NAMES.contains(name.toUpperCase(Locale.ENGLISH))) {
            fileName = "_" + name;
        }
        File targetFile = new File(targetDir, fileName.replace('/', File.separatorChar) + ".class");
        jarName = jarName + ".class";
        if (targetFile.exists()) {
            String sourceClassName = name.replace('/', '.');
            String targetClassName = remapper.map(name).replace('/', '.');
            JarEntry entry = sourceZip.getJarEntry(jarName);
            byte[] vanillaBytes = toByteArray(sourceZip, entry);
            byte[] patchedBytes = Files.toByteArray(targetFile);

            byte[] diff = delta.compute(vanillaBytes, patchedBytes);

            ByteArrayDataOutput diffOut = ByteStreams.newDataOutput(diff.length + 50);
            // Original name
            diffOut.writeUTF(name);
            // Source name
            diffOut.writeUTF(sourceClassName);
            // Target name
            diffOut.writeUTF(targetClassName);
            // exists at original
            diffOut.writeBoolean(entry != null);
            if (entry != null) {
                diffOut.writeInt(Hashing.adler32().hashBytes(vanillaBytes).asInt());
            }
            // length of patch
            diffOut.writeInt(diff.length);
            // patch
            diffOut.write(diff);

            File target = new File(outputDir, targetClassName + ".binpatch");
            target.getParentFile().mkdirs();
            Files.write(diffOut.toByteArray(), target);
            Logger.getLogger("GENDIFF").info(String.format("Wrote patch for %s (%s) at %s", name,
                    targetClassName, target.getAbsolutePath()));
            if (kill) {
                targetFile.delete();
                Logger.getLogger("GENDIFF").info(String.format("  Deleted target: %s", targetFile.toString()));
            }
        }
    }
    sourceZip.close();
}

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From source file:de.unibi.techfak.bibiserv.util.codegen.Main.java

public static void main(String[] args) {
    // check &   validate cmdline options
    OptionGroup opt_g = getCMDLineOptionsGroups();
    Options opt = getCMDLineOptions();/*from ww w .j  a v  a2  s . c  om*/
    opt.addOptionGroup(opt_g);

    CommandLineParser cli = new DefaultParser();
    try {
        CommandLine cl = cli.parse(opt, args);

        if (cl.hasOption("v")) {
            VerboseOutputFilter.SHOW_VERBOSE = true;
        }

        switch (opt_g.getSelected()) {
        case "V":
            try {
                URL jarUrl = Main.class.getProtectionDomain().getCodeSource().getLocation();
                String jarPath = URLDecoder.decode(jarUrl.getFile(), "UTF-8");
                JarFile jarFile = new JarFile(jarPath);
                Manifest m = jarFile.getManifest();
                StringBuilder versionInfo = new StringBuilder();
                for (Object key : m.getMainAttributes().keySet()) {
                    versionInfo.append(key).append(":").append(m.getMainAttributes().getValue(key.toString()))
                            .append("\n");
                }
                System.out.println(versionInfo.toString());
            } catch (Exception e) {
                log.error("Version info could not be read.");
            }
            break;
        case "h":
            HelpFormatter help = new HelpFormatter();
            String header = ""; //TODO: missing infotext 
            StringBuilder footer = new StringBuilder("Supported configuration properties :");
            help.printHelp("CodeGen -h | -V | -g  [...]", header, opt, footer.toString());
            break;
        case "g":
            // target dir
            if (cl.hasOption("t")) {
                File target = new File(cl.getOptionValue("t"));
                if (target.isDirectory() && target.canExecute() && target.canWrite()) {
                    config.setProperty("target.dir", cl.getOptionValue("t"));
                } else {
                    log.error("Target dir '{}' is inaccessible!", cl.getOptionValue("t"));
                    break;
                }
            } else {
                config.setProperty("target.dir", System.getProperty("java.io.tmpdir"));
            }

            // project dir
            if (cl.hasOption("p")) {
                File project = new File(cl.getOptionValue("p"));
                if (!project.exists()) {
                    if (!project.mkdirs()) {
                        log.error("Project dir '{}' can't be created!", cl.getOptionValue("p"));
                        break;
                    }
                }

                if (project.isDirectory() && project.canExecute() && project.canWrite()) {
                    config.setProperty("project.dir", cl.getOptionValue("p"));
                } else {
                    log.error("Project dir '{}' is inaccessible!", cl.getOptionValue("p"));
                    break;
                }
            }

            generateAppfromXML(cl.getOptionValue("g"));
            break;
        }
    } catch (ParseException e) {
        log.error("ParseException occurred while parsing cmdline arguments!\n{}", e.getLocalizedMessage());
    }

}

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From source file:com.mirth.connect.server.launcher.MirthLauncher.java

public static void main(String[] args) {
    try {/*w  w  w . jav  a 2 s.  c  o m*/
        try {
            uninstallPendingExtensions();
            installPendingExtensions();
        } catch (Exception e) {
            logger.error("Error uninstalling or installing pending extensions.", e);
        }

        Properties mirthProperties = new Properties();
        String includeCustomLib = null;

        try {
            mirthProperties.load(new FileInputStream(new File(MIRTH_PROPERTIES_FILE)));
            includeCustomLib = mirthProperties.getProperty(PROPERTY_INCLUDE_CUSTOM_LIB);
            createAppdataDir(mirthProperties);
        } catch (Exception e) {
            logger.error("Error creating the appdata directory.", e);
        }

        ManifestFile mirthServerJar = new ManifestFile("server-lib/mirth-server.jar");
        ManifestFile mirthClientCoreJar = new ManifestFile("server-lib/mirth-client-core.jar");
        ManifestDirectory serverLibDir = new ManifestDirectory("server-lib");
        serverLibDir.setExcludes(new String[] { "mirth-client-core.jar" });

        List<ManifestEntry> manifestList = new ArrayList<ManifestEntry>();
        manifestList.add(mirthServerJar);
        manifestList.add(mirthClientCoreJar);
        manifestList.add(serverLibDir);

        // We want to include custom-lib if the property isn't found, or if it equals "true"
        if (includeCustomLib == null || Boolean.valueOf(includeCustomLib)) {
            manifestList.add(new ManifestDirectory("custom-lib"));
        }

        ManifestEntry[] manifest = manifestList.toArray(new ManifestEntry[manifestList.size()]);

        // Get the current server version
        JarFile mirthClientCoreJarFile = new JarFile(mirthClientCoreJar.getName());
        Properties versionProperties = new Properties();
        versionProperties.load(mirthClientCoreJarFile
                .getInputStream(mirthClientCoreJarFile.getJarEntry("version.properties")));
        String currentVersion = versionProperties.getProperty("mirth.version");

        List<URL> classpathUrls = new ArrayList<URL>();
        addManifestToClasspath(manifest, classpathUrls);
        addExtensionsToClasspath(classpathUrls, currentVersion);
        URLClassLoader classLoader = new URLClassLoader(classpathUrls.toArray(new URL[classpathUrls.size()]));
        Class<?> mirthClass = classLoader.loadClass("com.mirth.connect.server.Mirth");
        Thread mirthThread = (Thread) mirthClass.newInstance();
        mirthThread.setContextClassLoader(classLoader);
        mirthThread.start();
    } catch (Exception e) {
        e.printStackTrace();
    }
}

---

From source file:org.apache.hadoop.hbase.util.RunTrigger.java

/**
 * @param args/*  ww w.j a v a2s  .  c  om*/
 * @throws Throwable 
 */
public static void main(String[] args) throws Throwable {
    String usage = "RunTrigger jarFile [mainClass] args...";

    if (args.length < 1) {
        System.err.println(usage);
        System.exit(-1);
    }
    int firstArg = 0;
    String fileName = args[firstArg++];
    File file = new File(fileName);
    File tmpJarFile = new File("/tmp/hbase/triggerJar/trigger.jar");
    if (tmpJarFile.exists()) {
        tmpJarFile.delete();
    }
    FileUtils.copyFile(file, tmpJarFile);

    String mainClassName = null;
    JarFile jarFile;
    try {
        jarFile = new JarFile(fileName);
    } catch (IOException e) {
        throw new IOException("Error opening trigger jar: " + fileName).initCause(e);
    }

    Manifest manifest = jarFile.getManifest();
    if (manifest != null) {
        mainClassName = manifest.getMainAttributes().getValue("Main-Class");
    }
    jarFile.close();
    System.out.println("Manifest From Jar: " + mainClassName);

    if (mainClassName == null) {
        if (args.length < 2) {
            System.err.println(usage);
            System.exit(-1);
        }
        mainClassName = args[firstArg++];
    }
    System.out.println("Manifest class from argument: " + mainClassName);

    mainClassName = mainClassName.replace("/", ".");

    //'hbase.tmp.dir'
    File tmpDir = new File("/tmp/hbase/trigger/");

    tmpDir.mkdirs();
    if (!tmpDir.isDirectory()) {
        System.err.println("Mkdirs failed to create " + tmpDir);
        System.exit(-1);
    }
    final File workDir = File.createTempFile("trigger-unjar", "", tmpDir);
    workDir.delete();
    workDir.mkdirs();
    if (!workDir.isDirectory()) {
        System.err.println("Mkdirs failed to create " + workDir);
        System.exit(-1);
    }

    Runtime.getRuntime().addShutdownHook(new Thread() {
        public void run() {
            try {
                FileUtil.fullyDelete(workDir);
            } catch (IOException e) {
            }
        }
    });

    unJar(file, workDir);

    ArrayList<URL> classPath = new ArrayList<URL>();
    classPath.add(new File(workDir + "/").toURL());
    classPath.add(file.toURL());
    classPath.add(new File(workDir, "classes/").toURL());
    File[] libs = new File(workDir, "lib").listFiles();
    if (libs != null) {
        for (int i = 0; i < libs.length; i++) {
            classPath.add(libs[i].toURL());
        }
    }

    ClassLoader loader = new URLClassLoader(classPath.toArray(new URL[0]));
    Thread.currentThread().setContextClassLoader(loader);
    Class<?> mainClass = Class.forName(mainClassName, true, loader);
    Method main = mainClass.getMethod("main", new Class[] { Array.newInstance(String.class, 0).getClass() });
    String[] newArgs = Arrays.asList(args).subList(firstArg, args.length).toArray(new String[0]);
    try {
        main.invoke(null, new Object[] { newArgs });
    } catch (InvocationTargetException e) {
        throw e.getTargetException();
    }
}

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