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:net.dmulloy2.ultimatearena.api.ArenaLoader.java

public final ArenaDescription getArenaDescription(File file) throws InvalidArenaException {
    Validate.notNull(file, "file cannot be null!");

    try (Closer closer = new Closer()) {
        JarFile jar = closer.register(new JarFile(file));
        JarEntry entry = jar.getJarEntry("arena.yml");

        if (entry == null)
            throw new InvalidArenaException(new FileNotFoundException("Jar does not contain arena.yml"));

        InputStream stream = closer.register(jar.getInputStream(entry));
        Map<?, ?> map = (Map<?, ?>) yaml.load(stream);

        String name = (String) map.get("name");
        Validate.notNull(name, "Missing required key: name");
        Validate.isTrue(name.matches("^[A-Za-z0-9 _.-]+$"), "Name '" + name + "' contains invalid characters");

        String main = (String) map.get("main");
        Validate.notNull(main, "Missing required key: main");

        String version = (String) map.get("version");
        Validate.notNull(version, "Missing required key: version");

        String author = (String) map.get("author");
        if (author == null)
            author = "Unascribed";

        String stylized = (String) map.get("stylized");
        if (stylized == null)
            stylized = name;/*from  ww  w. j a v  a2 s  .c o m*/

        return new ArenaDescription(name, main, stylized, version, author);
    } catch (InvalidArenaException ex) {
        throw ex;
    } catch (Throwable ex) {
        throw new InvalidArenaException("Failed to read arena.yml from " + file.getName(), ex);
    }
}

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From source file:com.l2jserver.service.game.scripting.impl.ecj.EclipseCompilerScriptClassLoader.java

/**
 * AddsLibrary jar// w ww.  jav  a  2  s . c o m
 * 
 * @param file
 *            jar file to add
 * @throws IOException
 *             if any I/O error occur
 */
@Override
public void addLibrary(File file) throws IOException {
    URL fileURL = file.toURI().toURL();
    addURL(fileURL);

    JarFile jarFile = new JarFile(file);

    Enumeration<JarEntry> entries = jarFile.entries();
    while (entries.hasMoreElements()) {
        JarEntry entry = entries.nextElement();

        String name = entry.getName();
        if (name.endsWith(".class")) {
            name = name.substring(0, name.length() - 6);
            name = name.replace('/', '.');
            libraryClasses.add(name);
        }
    }

    jarFile.close();
}

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From source file:edu.stanford.muse.email.JarDocCache.java

private synchronized Set<String> getHeaders(String prefix) throws IOException {
    Set<String> headers = headersMap.get(prefix);
    if (headers != null)
        return headers;

    // check if the file exists first, if it doesn't return null
    String filename = baseDir + File.separator + prefix + ".headers";
    File f = new File(filename);
    Set<String> result = new LinkedHashSet<String>();
    if (f.exists()) {
        JarFile jarFile;//  w  w w.  j  ava  2  s . c  o  m
        try {
            jarFile = new JarFile(filename);
            result = readJarFileEntries(jarFile);
        } catch (Exception e) {
            // not really a jar file. delete the sucker
            log.warn("Bad jar file! " + filename + " size " + new File(filename).length() + " bytes");
            Util.print_exception(e, log);
            new File(filename).delete();
        }
    }

    headersMap.put(prefix, result);
    return result;
}

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From source file:com.arcusys.liferay.vaadinplugin.util.ControlPanelPortletUtil.java

public static String getPortalVaadinJarVersion(String jarPath) throws IOException {
    JarFile jarFile = new JarFile(jarPath);
    try {// www .  ja va 2s.  c o  m
        String version = getManifestVaadinVersion(jarFile);
        if (version == null) {
            version = getPomVaadinVersion(jarFile);
        }

        return version;
    } catch (Exception ex) {
        return null;
    } finally {
        try {
            jarFile.close();
        } catch (IOException e) {
            log.warn(e);
        }
    }
}

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From source file:info.dolezel.fatrat.plugins.helpers.NativeHelpers.java

private static Set<Class> findClasses(File directory, String packageName, Class annotation)
        throws ClassNotFoundException, IOException {
    Set<Class> classes = new HashSet<Class>();
    if (!directory.exists()) {

        String fullPath = directory.toString();
        String jarPath = fullPath.replaceFirst("[.]jar[!].*", ".jar").replaceFirst("file:", "");
        JarFile jarFile = new JarFile(jarPath);
        Enumeration<JarEntry> entries = jarFile.entries();
        while (entries.hasMoreElements()) {
            JarEntry entry = entries.nextElement();
            String entryName = entry.getName();
            if (entryName.endsWith(".class") && !entryName.contains("$")) {
                String className = entryName.replace('/', '.').replace('\\', '.').replace(".class", "");
                Class cls = loader.loadClass(className);

                if (annotation == null || cls.isAnnotationPresent(annotation))
                    classes.add(cls);/*from w  w  w .j a  v a  2s. com*/
            }
        }
    } else {
        File[] files = directory.listFiles();
        for (File file : files) {
            if (file.isDirectory()) {
                assert !file.getName().contains(".");
                classes.addAll(findClasses(file, packageName + "." + file.getName(), annotation));
            } else if (file.getName().endsWith(".class")) {
                Class cls = loader.loadClass(
                        packageName + '.' + file.getName().substring(0, file.getName().length() - 6));

                if (annotation == null || cls.isAnnotationPresent(annotation))
                    classes.add(cls);
            }
        }
    }
    return classes;
}

---

From source file:com.jayway.maven.plugins.android.standalonemojos.UnpackMojo.java

private File unpackClasses() throws MojoExecutionException {
    File outputDirectory = new File(targetDirectory, "android-classes");
    if (lazyLibraryUnpack && outputDirectory.exists()) {
        getLog().info("skip library unpacking due to lazyLibraryUnpack policy");
    } else {//from w  w w  .j a  va 2  s .  c  o m
        outputDirectory.mkdirs();

        for (Artifact artifact : getRelevantCompileArtifacts()) {

            if (artifact.getFile().isDirectory()) {
                try {
                    FileUtils.copyDirectory(artifact.getFile(), outputDirectory);
                } catch (IOException e) {
                    throw new MojoExecutionException(
                            "IOException while copying " + artifact.getFile().getAbsolutePath() + " into "
                                    + outputDirectory.getAbsolutePath(),
                            e);
                }
            } else {
                try {
                    JarHelper.unjar(new JarFile(artifact.getFile()), outputDirectory,
                            new JarHelper.UnjarListener() {
                                @Override
                                public boolean include(JarEntry jarEntry) {
                                    return isIncluded(jarEntry);
                                }
                            });
                } catch (IOException e) {
                    throw new MojoExecutionException(
                            "IOException while unjarring " + artifact.getFile().getAbsolutePath() + " into "
                                    + outputDirectory.getAbsolutePath(),
                            e);
                }
            }

        }
    }

    try {
        FileUtils.copyDirectory(projectOutputDirectory, outputDirectory);
    } catch (IOException e) {
        throw new MojoExecutionException("IOException while copying " + sourceDirectory.getAbsolutePath()
                + " into " + outputDirectory.getAbsolutePath(), e);
    }
    return outputDirectory;
}

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From source file:org.apache.bcel.generic.JDKGenericDumpTestCase.java

private void testJar(final File file) throws Exception {
    System.out.println(file);//from   w  ww  .j a  v a  2s. c o m
    try (JarFile jar = new JarFile(file)) {
        final Enumeration<JarEntry> en = jar.entries();
        while (en.hasMoreElements()) {
            final JarEntry e = en.nextElement();
            final String name = e.getName();
            if (name.endsWith(".class")) {
                // System.out.println("- " + name);
                try (InputStream in = jar.getInputStream(e)) {
                    final ClassParser parser = new ClassParser(in, name);
                    final JavaClass jc = parser.parse();
                    for (final Method m : jc.getMethods()) {
                        compare(name, m);
                    }
                }
            }
        }
    }
}

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From source file:org.compass.core.config.binding.AbstractInputStreamMappingBinding.java

public boolean addJar(File jar) throws ConfigurationException, MappingException {
    final JarFile jarFile;
    try {//from w w w .  j av  a 2 s  . c  o  m
        jarFile = new JarFile(jar);
    } catch (IOException ioe) {
        throw new ConfigurationException("Could not configure datastore from jar [" + jar.getName() + "]", ioe);
    }

    boolean addedAtLeastOne = false;
    Enumeration jarEntries = jarFile.entries();
    while (jarEntries.hasMoreElements()) {
        ZipEntry ze = (ZipEntry) jarEntries.nextElement();
        for (String suffix : getSuffixes()) {
            if (ze.getName().endsWith(suffix)) {
                try {
                    boolean retVal = internalAddInputStream(jarFile.getInputStream(ze), ze.getName(), true);
                    if (retVal) {
                        addedAtLeastOne = true;
                    }
                } catch (ConfigurationException me) {
                    throw me;
                } catch (Exception e) {
                    throw new ConfigurationException(
                            "Could not configure datastore from jar [" + jar.getAbsolutePath() + "]", e);
                }
            }
        }
    }
    return addedAtLeastOne;
}

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From source file:org.apache.hadoop.util.TestClasspath.java

/**
 * Asserts that the specified file is a jar file with a manifest containing a
 * non-empty classpath attribute.//  ww w . java  2s  .  c o m
 *
 * @param file File to check
 * @throws IOException if there is an I/O error
 */
private static void assertJar(File file) throws IOException {
    JarFile jarFile = null;
    try {
        jarFile = new JarFile(file);
        Manifest manifest = jarFile.getManifest();
        assertNotNull(manifest);
        Attributes mainAttributes = manifest.getMainAttributes();
        assertNotNull(mainAttributes);
        assertTrue(mainAttributes.containsKey(Attributes.Name.CLASS_PATH));
        String classPathAttr = mainAttributes.getValue(Attributes.Name.CLASS_PATH);
        assertNotNull(classPathAttr);
        assertFalse(classPathAttr.isEmpty());
    } finally {
        // It's too bad JarFile doesn't implement Closeable.
        if (jarFile != null) {
            try {
                jarFile.close();
            } catch (IOException e) {
                LOG.warn("exception closing jarFile: " + jarFile, e);
            }
        }
    }
}

---

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.//  ww  w  . ja va2 s.  co  m
 *
 * @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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