Example usage for java.util.jar JarFile entries

Introduction

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

Prototype

public Enumeration<JarEntry> entries() 

Source Link

Document

Returns an enumeration of the jar file entries.

Usage

From source file:org.datavyu.util.NativeLoader.java

/**
 * Unpacks a native application to a temporary location so that it can be
 * utilized from within java code./*from ww  w .  j  a v a2  s .  c om*/
 *
 * @param appJar The jar containing the native app that you want to unpack.
 * @return The path of the native app as unpacked to a temporary location.
 *
 * @throws Exception If unable to unpack the native app to a temporary
 * location.
 */
public static String unpackNativeApp(final String appJar) throws Exception {
    final String nativeLibraryPath;

    if (nativeLibFolder == null) {
        nativeLibraryPath = System.getProperty("java.io.tmpdir") + UUID.randomUUID().toString() + "nativelibs";
        nativeLibFolder = new File(nativeLibraryPath);

        if (!nativeLibFolder.exists()) {
            nativeLibFolder.mkdir();
        }
    }

    // Search the class path for the application jar.
    JarFile jar = null;

    // BugID: 26178921 -- We need to inspect the surefire test class path as
    // well as the regular class path property so that we can scan dependencies
    // during tests.
    String searchPath = System.getProperty("surefire.test.class.path") + File.pathSeparator
            + System.getProperty("java.class.path");

    for (String s : searchPath.split(File.pathSeparator)) {
        // Success! We found a matching jar.
        if (s.endsWith(appJar + ".jar") || s.endsWith(appJar)) {
            jar = new JarFile(s);
        }
    }

    // If we found a jar - it should contain the desired application.
    // decompress as needed.
    if (jar != null) {
        Enumeration<JarEntry> entries = jar.entries();

        while (entries.hasMoreElements()) {
            JarEntry inFile = entries.nextElement();
            File outFile = new File(nativeLibFolder, inFile.getName());

            // If the file from the jar is a directory, create it.
            if (inFile.isDirectory()) {
                outFile.mkdir();

                // The file from the jar is regular - decompress it.
            } else {
                InputStream in = jar.getInputStream(inFile);

                // Create a temporary output location for the library.
                FileOutputStream out = new FileOutputStream(outFile);
                BufferedOutputStream dest = new BufferedOutputStream(out, BUFFER);
                int count;
                byte[] data = new byte[BUFFER];

                while ((count = in.read(data, 0, BUFFER)) != -1) {
                    dest.write(data, 0, count);
                }

                dest.flush();
                dest.close();
                out.close();
                in.close();
            }

            loadedLibs.add(outFile);
        }

        // Unable to find jar file - abort decompression.
    } else {
        System.err.println("Unable to find jar file for unpacking: " + appJar + ". Java classpath is:");

        for (String s : System.getProperty("java.class.path").split(File.pathSeparator)) {
            System.err.println("    " + s);
        }

        throw new Exception("Unable to find '" + appJar + "' for unpacking.");
    }

    return nativeLibFolder.getAbsolutePath();
}

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From source file:org.wso2.developerstudio.eclipse.utils.file.FileUtils.java

@SuppressWarnings("resource")
private static ArrayList<String> getPackages(File jarFile) {

    ArrayList<String> packages = new ArrayList<String>();

    JarFile jar = null;
    try {//from   www  .  ja  v  a2 s.  c  o  m
        jar = new JarFile(jarFile);
    } catch (IOException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    }

    if (jar != null) {
        Enumeration<? extends JarEntry> enumeration = jar.entries();
        // Iterates into the files in the jar file
        while (enumeration.hasMoreElements()) {

            ZipEntry zipEntry = enumeration.nextElement();
            if (zipEntry.getName().endsWith(".class")) {
                // Relative path of file into the jar.
                String className = zipEntry.getName();
                String packageName = new File(className).getParent();
                packageName = packageName.replace(File.separatorChar, '.');
                if (!packages.contains(packageName)) {
                    packages.add(packageName);
                }
            }
        }
    }
    return packages;
}

---

From source file:com.jrummyapps.busybox.signing.ZipSigner.java

/** Add the SHA1 of every file to the manifest, creating it if necessary. */
private static Manifest addDigestsToManifest(final JarFile jar) throws IOException, GeneralSecurityException {
    final Manifest input = jar.getManifest();
    final Manifest output = new Manifest();

    final Attributes main = output.getMainAttributes();
    main.putValue("Manifest-Version", MANIFEST_VERSION);
    main.putValue("Created-By", CREATED_BY);

    // We sort the input entries by name, and add them to the output manifest in sorted order.
    // We expect that the output map will be deterministic.
    final TreeMap<String, JarEntry> byName = new TreeMap<>();
    for (Enumeration<JarEntry> e = jar.entries(); e.hasMoreElements();) {
        JarEntry entry = e.nextElement();
        byName.put(entry.getName(), entry);
    }/*from  w ww.j  a va  2s  .  c om*/

    final MessageDigest md = MessageDigest.getInstance("SHA1");
    final byte[] buffer = new byte[4096];
    int num;

    for (JarEntry entry : byName.values()) {
        final String name = entry.getName();
        if (!entry.isDirectory() && !name.equals(JarFile.MANIFEST_NAME) && !name.equals(CERT_SF_NAME)
                && !name.equals(CERT_RSA_NAME)) {
            InputStream data = jar.getInputStream(entry);
            while ((num = data.read(buffer)) > 0) {
                md.update(buffer, 0, num);
            }

            Attributes attr = null;
            if (input != null) {
                attr = input.getAttributes(name);
            }
            attr = attr != null ? new Attributes(attr) : new Attributes();
            attr.putValue("SHA1-Digest", base64encode(md.digest()));
            output.getEntries().put(name, attr);
        }
    }

    return output;
}

---

From source file:org.sonar.server.util.ClassLoaderUtils.java

/**
 * Finds directories and files within a given directory and its subdirectories.
 *
 * @param classLoader//  www .j a v  a 2 s  . co m
 * @param rootPath    the root directory, for example org/sonar/sqale, or a file in this root directory, for example org/sonar/sqale/index.txt
 * @param predicate
 * @return a list of relative paths, for example {"org/sonar/sqale", "org/sonar/sqale/foo", "org/sonar/sqale/foo/bar.txt}. Never null.
 */
public static Collection<String> listResources(ClassLoader classLoader, String rootPath,
        Predicate<String> predicate) {
    String jarPath = null;
    JarFile jar = null;
    try {
        Collection<String> paths = Lists.newArrayList();
        URL root = classLoader.getResource(rootPath);
        if (root != null) {
            checkJarFile(root);

            // Path of the root directory
            // Examples :
            // org/sonar/sqale/index.txt -> rootDirectory is org/sonar/sqale
            // org/sonar/sqale/ -> rootDirectory is org/sonar/sqale
            // org/sonar/sqale -> rootDirectory is org/sonar/sqale
            String rootDirectory = rootPath;
            if (StringUtils.substringAfterLast(rootPath, "/").indexOf('.') >= 0) {
                rootDirectory = StringUtils.substringBeforeLast(rootPath, "/");
            }
            // strip out only the JAR file
            jarPath = root.getPath().substring(5, root.getPath().indexOf('!'));
            jar = new JarFile(URLDecoder.decode(jarPath, CharEncoding.UTF_8));
            Enumeration<JarEntry> entries = jar.entries();
            while (entries.hasMoreElements()) {
                String name = entries.nextElement().getName();
                if (name.startsWith(rootDirectory) && predicate.test(name)) {
                    paths.add(name);
                }
            }
        }
        return paths;
    } catch (Exception e) {
        throw Throwables.propagate(e);
    } finally {
        closeJar(jar, jarPath);
    }
}

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From source file:nl.tue.gale.ae.config.GaleContextLoader.java

private void findInJar(ServletContext sc, String path, List<String> locations) {
    try {//  w  ww  . j  a  v  a  2s .c o  m
        JarFile jar = new JarFile(sc.getRealPath(path));
        for (JarEntry entry : enumIterable(jar.entries())) {
            if (entry.getName().endsWith("-galeconfig.xml"))
                locations.add("classpath:" + entry.getName());
        }
        jar.close();
    } catch (Exception e) {
        e.printStackTrace();
    }
}

---

From source file:org.junit.extensions.dynamicsuite.engine.ClassPathScanner.java

private void loadJarEntries(JarFile jar) {
    Enumeration<JarEntry> entries = jar.entries();
    while (entries.hasMoreElements()) {

        JarEntry element = entries.nextElement();
        String name = element.getName();
        if (name.toLowerCase().endsWith(".class")) {
            String className = StringUtils.replace(name, "/", ".");
            className = StringUtils.removeEnd(className, ".class");
            foundClasses.add(className);
        }/* w  w w .  j av a  2  s. c om*/
    }
}

---

From source file:org.sonar.server.platform.ClassLoaderUtils.java

/**
 * Finds directories and files within a given directory and its subdirectories.
 *
 * @param classLoader/*ww w.  j  a  va  2  s .  c  o m*/
 * @param rootPath    the root directory, for example org/sonar/sqale, or a file in this root directory, for example org/sonar/sqale/index.txt
 * @param predicate
 * @return a list of relative paths, for example {"org/sonar/sqale", "org/sonar/sqale/foo", "org/sonar/sqale/foo/bar.txt}. Never null.
 */
static Collection<String> listResources(ClassLoader classLoader, String rootPath, Predicate<String> predicate) {
    String jarPath = null;
    JarFile jar = null;
    try {
        Collection<String> paths = Lists.newArrayList();
        URL root = classLoader.getResource(rootPath);
        if (root != null) {
            checkJarFile(root);

            // Path of the root directory
            // Examples :
            // org/sonar/sqale/index.txt  -> rootDirectory is org/sonar/sqale
            // org/sonar/sqale/  -> rootDirectory is org/sonar/sqale
            // org/sonar/sqale  -> rootDirectory is org/sonar/sqale
            String rootDirectory = rootPath;
            if (StringUtils.substringAfterLast(rootPath, "/").indexOf('.') >= 0) {
                rootDirectory = StringUtils.substringBeforeLast(rootPath, "/");
            }
            //strip out only the JAR file
            jarPath = root.getPath().substring(5, root.getPath().indexOf("!"));
            jar = new JarFile(URLDecoder.decode(jarPath, CharEncoding.UTF_8));
            Enumeration<JarEntry> entries = jar.entries();
            while (entries.hasMoreElements()) {
                String name = entries.nextElement().getName();
                if (name.startsWith(rootDirectory) && predicate.apply(name)) {
                    paths.add(name);
                }
            }
        }
        return paths;
    } catch (Exception e) {
        throw Throwables.propagate(e);
    } finally {
        closeJar(jar, jarPath);
    }
}

---

From source file:org.eclipse.licensing.eclipse_licensing_plugin.InjectLicensingMojo.java

private void extractLicensingBaseFiles() throws IOException {
    JarFile jar = new JarFile(getLicensingBasePlugin());
    Enumeration<JarEntry> entries = jar.entries();
    while (entries.hasMoreElements()) {
        JarEntry entry = entries.nextElement();
        String entryName = entry.getName();
        if (entryName.startsWith("org")) {
            File file = new File(classesDirectory, entryName);
            if (entry.isDirectory()) {
                file.mkdir();//from   w  w  w. j  a  v  a2s.co  m
            } else {
                InputStream is = jar.getInputStream(entry);
                FileOutputStream fos = new FileOutputStream(file);
                while (is.available() > 0) {
                    fos.write(is.read());
                }
                fos.close();
                is.close();
            }
        }
    }
    jar.close();
}

---

From source file:org.netbeans.nbbuild.MakeJnlp2.java

/** return alias if signed, or null if not */
private static String isSigned(File f) throws IOException {
    JarFile jar = new JarFile(f);
    try {// ww w .j  ava2 s .co m
        Enumeration<JarEntry> en = jar.entries();
        while (en.hasMoreElements()) {
            Matcher m = SF.matcher(en.nextElement().getName());
            if (m.matches()) {
                return m.group(1);
            }
        }
        return null;
    } finally {
        jar.close();
    }
}

---

From source file:rapture.plugin.app.JarBasedSandboxLoader.java

private String[] getResourceFiles(String path, String variant) throws Exception {
    URL dirURL = SelfInstaller.class.getClass().getResource(path);
    String jarPath = dirURL.getPath().substring(5, dirURL.getPath().indexOf("!")); // strip out only the JAR file
    JarFile jar = new JarFile(URLDecoder.decode(jarPath, "UTF-8"));
    Enumeration<JarEntry> entries = jar.entries(); // gives ALL entries in
                                                   // jar
    Set<String> result = new HashSet<String>(); // avoid duplicates in case
                                                // it is a subdirectory
    String checkPath = path.substring(1);
    String checkVariant = variant != null ? checkPath.replaceFirst(PluginSandbox.CONTENT, variant).concat("/")
            : null;//from ww w.  j a v a2s  .c o  m
    while (entries.hasMoreElements()) {
        String name = entries.nextElement().getName();
        if (!name.endsWith("/") && // don't return directories
                (name.startsWith(checkPath) || (checkVariant != null && name.startsWith(checkVariant)))) { // filter according to the path
            result.add(name);
        }
    }
    jar.close();
    return result.toArray(new String[result.size()]);

}

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