Example usage for java.util.jar JarFile close

Introduction

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

Prototype

public void close() throws IOException 

Source Link

Document

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Usage

From source file:org.talend.commons.utils.resource.BundleFileUtil.java

public static Manifest getManifest(File f) throws IOException {
    if (f == null || !f.exists() || !f.isFile() || !f.getName().endsWith(FileExtensions.JAR_FILE_SUFFIX)) {
        return null;
    }//from  w  w  w.j  a v  a 2  s. c  o m
    JarFile jarFile = null;
    try {
        jarFile = new JarFile(f);
        return jarFile.getManifest();
    } finally {
        if (jarFile != null) {
            try {
                jarFile.close();
            } catch (IOException e) {
            }
        }
    }
}

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From source file:net.fabricmc.installer.installer.LocalVersionInstaller.java

public static void install(File mcDir, IInstallerProgress progress) throws Exception {
    JFileChooser fc = new JFileChooser();
    fc.setDialogTitle(Translator.getString("install.client.selectCustomJar"));
    fc.setFileFilter(new FileNameExtensionFilter("Jar Files", "jar"));
    if (fc.showOpenDialog(null) == JFileChooser.APPROVE_OPTION) {
        File inputFile = fc.getSelectedFile();

        JarFile jarFile = new JarFile(inputFile);
        Attributes attributes = jarFile.getManifest().getMainAttributes();
        String mcVersion = attributes.getValue("MinecraftVersion");
        Optional<String> stringOptional = ClientInstaller.isValidInstallLocation(mcDir, mcVersion);
        jarFile.close();
        if (stringOptional.isPresent()) {
            throw new Exception(stringOptional.get());
        }//ww  w. j  av a 2 s . c  om
        ClientInstaller.install(mcDir, mcVersion, progress, inputFile);
    } else {
        throw new Exception("Failed to find jar");
    }

}

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From source file:org.sonar.updatecenter.deprecated.Plugin.java

public static Plugin extractMetadata(File file) throws IOException {
    JarFile jar = new JarFile(file);
    ZipEntry entry = jar.getEntry("META-INF/MANIFEST.MF");
    long timestamp = entry.getTime();
    Manifest manifest = jar.getManifest();
    jar.close();

    Attributes attributes = manifest.getMainAttributes();
    String pluginKey = attributes.getValue("Plugin-Key");
    Plugin plugin = new Plugin(pluginKey);
    plugin.setName(attributes.getValue("Plugin-Name"));
    plugin.setVersion(attributes.getValue("Plugin-Version"));
    plugin.setRequiredSonarVersion(attributes.getValue("Sonar-Version"));
    plugin.setHomepage(attributes.getValue("Plugin-Homepage"));
    plugin.setDate(timestamp);/*from   ww  w.ja  v a  2 s  .c o m*/
    return plugin;
}

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From source file:org.ow2.chameleon.core.utils.BundleHelper.java

/**
 * Checks whether the given file is a bundle or not.
 * The check is based on the {@literal Bundle-ManifestVersion} header.
 * If the file is a directory this method checks if the directory is an exploded bundle.
 * If the file is a jar file, it checks the manifest.
 *
 * @param file the file.//from  w  w  w. j a v  a2s. c  o m
 * @return {@literal true} if it's a bundle, {@literal false} otherwise.
 */
public static boolean isBundle(File file) {

    if (file.isFile() && file.getName().endsWith(".jar")) {
        JarFile jar = null;
        try {
            jar = new JarFile(file);
            return jar.getManifest() != null && jar.getManifest().getMainAttributes() != null
                    && jar.getManifest().getMainAttributes().getValue(Constants.BUNDLE_SYMBOLICNAME) != null;
            // We check the symbolic name because it's the only mandatory header
            // see http://wiki.osgi.org/wiki/Bundle-SymbolicName.
        } catch (IOException e) {
            LoggerFactory.getLogger(BundleHelper.class)
                    .error("Cannot check if the file {} is a bundle, " + "cannot open it", file.getName(), e);
            return false;
        } finally {
            final JarFile finalJar = jar;
            IOUtils.closeQuietly(new Closeable() {
                @Override
                public void close() throws IOException {
                    if (finalJar != null) {
                        finalJar.close();
                    }
                }
            });
        }
    }

    return isExplodedBundle(file);

}

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From source file:org.tangram.util.SetupUtils.java

private static Set<String> getResourceListing(URL pathUrl, String prefix, String suffix)
        throws URISyntaxException, IOException {
    Set<String> result = new HashSet<>();
    if ("file".equals(pathUrl.getProtocol())) {
        for (String name : new File(pathUrl.toURI()).list()) {
            if (name.endsWith(suffix)) {
                result.add(prefix + "/" + name);
            } // if
        } // for//  w  w  w .j a v a2  s  .com
    } // if

    if ("jar".equals(pathUrl.getProtocol())) {
        String jarPath = pathUrl.getPath().substring(5, pathUrl.getPath().indexOf("!")); // only the JAR file
        JarFile jar = new JarFile(URLDecoder.decode(jarPath, "UTF-8"));
        for (Enumeration<JarEntry> entries = jar.entries(); entries.hasMoreElements();) {
            String name = entries.nextElement().getName();
            if (name.startsWith(prefix) && name.endsWith(suffix)) {
                result.add(name);
            } // if
        } // for
        jar.close();
    } // if

    return result;
}

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From source file:org.wisdom.maven.utils.WebJars.java

/**
 * Checks whether the given file is a WebJar or not (http://www.webjars.org/documentation).
 * The check is based on the presence of {@literal META-INF/resources/webjars/} directory in the jar file.
 *
 * @param file the file./*  w w w .  j ava 2 s. c  om*/
 * @return {@literal true} if it's a bundle, {@literal false} otherwise.
 */
public static boolean isWebJar(File file) {
    Set<String> found = new LinkedHashSet<>();
    if (file.isFile() && file.getName().endsWith(".jar")) {
        JarFile jar = null;
        try {
            jar = new JarFile(file);

            // Fast return if the base structure is not there
            if (jar.getEntry(WEBJAR_LOCATION) == null) {
                return false;
            }

            Enumeration<JarEntry> entries = jar.entries();
            while (entries.hasMoreElements()) {
                JarEntry entry = entries.nextElement();
                Matcher matcher = WEBJAR_REGEX.matcher(entry.getName());
                if (matcher.matches()) {
                    found.add(matcher.group(1) + "-" + matcher.group(2));
                }
            }
        } catch (IOException e) {
            LoggerFactory.getLogger(DependencyCopy.class)
                    .error("Cannot check if the file {} is a webjar, " + "cannot open it", file.getName(), e);
            return false;
        } finally {
            final JarFile finalJar = jar;
            IOUtils.closeQuietly(new Closeable() {
                @Override
                public void close() throws IOException {
                    if (finalJar != null) {
                        finalJar.close();
                    }
                }
            });
        }

        for (String lib : found) {
            LoggerFactory.getLogger(DependencyCopy.class).info("Web Library found in {} : {}", file.getName(),
                    lib);
        }

        return !found.isEmpty();
    }

    return false;
}

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From source file:com.app.server.util.ClassLoaderUtil.java

public static boolean cleanupJarFileFactory(CopyOnWriteArrayList setJarFileNames2Close) {
    boolean res = false;
    Class classJarURLConnection = null;
    try {// w w  w  .java2  s .  c  o  m
        classJarURLConnection = Class.forName("sun.net.www.protocol.jar.JarURLConnection");
    } catch (ClassNotFoundException e) {
        e.printStackTrace();
    }
    if (classJarURLConnection == null) {
        return res;
    }
    Field f = null;
    try {
        f = classJarURLConnection.getDeclaredField("factory");
    } catch (NoSuchFieldException e) {
        e.printStackTrace();
    }
    if (f == null) {
        return res;
    }
    f.setAccessible(true);
    Object obj = null;
    try {
        obj = f.get(null);
    } catch (IllegalAccessException e) {
        // ignore
    }
    if (obj == null) {
        return res;
    }
    Class classJarFileFactory = obj.getClass();
    //
    HashMap fileCache = null;
    try {
        f = classJarFileFactory.getDeclaredField("fileCache");
        f.setAccessible(true);
        obj = f.get(null);
        if (obj instanceof HashMap) {
            fileCache = (HashMap) obj;
        }
    } catch (NoSuchFieldException e) {
        e.printStackTrace();
    } catch (IllegalAccessException e) {
        e.printStackTrace();
    }
    HashMap urlCache = null;
    try {
        f = classJarFileFactory.getDeclaredField("urlCache");
        f.setAccessible(true);
        obj = f.get(null);
        if (obj instanceof HashMap) {
            urlCache = (HashMap) obj;
        }
    } catch (NoSuchFieldException e) {
        e.printStackTrace();
    } catch (IllegalAccessException e) {
        e.printStackTrace();
    }
    if (urlCache != null) {
        HashMap urlCacheTmp = (HashMap) urlCache.clone();
        Iterator it = urlCacheTmp.keySet().iterator();
        while (it.hasNext()) {
            obj = it.next();
            if (!(obj instanceof JarFile)) {
                continue;
            }
            JarFile jarFile = (JarFile) obj;
            if (setJarFileNames2Close.contains(jarFile.getName().trim().toUpperCase())) {
                try {
                    jarFile.close();
                } catch (IOException e) {
                    e.printStackTrace();
                }
                if (fileCache != null) {
                    fileCache.remove(jarFile);
                }
                urlCache.remove(jarFile);
            }
        }
        res = true;
    } else if (fileCache != null) {
        // urlCache := null
        HashMap fileCacheTmp = (HashMap) fileCache.clone();
        Iterator it = fileCacheTmp.keySet().iterator();
        while (it.hasNext()) {
            Object key = it.next();
            obj = fileCache.get(key);
            if (!(obj instanceof JarFile)) {
                continue;
            }
            JarFile jarFile = (JarFile) obj;

            try {
                jarFile.close();
            } catch (IOException e) {
                // ignore
            }
            fileCache.remove(key);

        }
        res = true;
    }
    setJarFileNames2Close.clear();
    return res;
}

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From source file:org.jvnet.hudson.test.JellyTestSuiteBuilder.java

static Map<URL, String> scan(File resources, String extension) throws IOException {
    Map<URL, String> result = new HashMap<>();
    if (resources.isDirectory()) {
        for (File f : FileUtils.listFiles(resources, new String[] { extension }, true)) {
            result.put(f.toURI().toURL(),
                    f.getAbsolutePath().substring((resources.getAbsolutePath() + File.separator).length()));
        }// w ww .j a  v a  2 s  .  c  o  m
    } else if (resources.getName().endsWith(".jar")) {
        String jarUrl = resources.toURI().toURL().toExternalForm();
        JarFile jf = new JarFile(resources);
        Enumeration<JarEntry> e = jf.entries();
        while (e.hasMoreElements()) {
            JarEntry ent = e.nextElement();
            if (ent.getName().endsWith("." + extension)) {
                result.put(new URL("jar:" + jarUrl + "!/" + ent.getName()), ent.getName());
            }
        }
        jf.close();
    }
    return result;
}

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From source file:hudson.plugins.simpleupdatesite.HPI.java

public static HPI loadHPI(File file) throws IOException {
    JarFile jarFile = new JarFile(file);
    try {/* w w w .  ja  va 2s .  c om*/
        ZipEntry entry = jarFile.getEntry("META-INF/MANIFEST.MF");
        HPI hpi = new HPI();
        hpi.init(jarFile.getManifest().getMainAttributes(), entry.getTime());
        return hpi;
    } finally {
        jarFile.close();
    }
}

---

From source file:org.wisdom.resources.WebJarDeployer.java

/**
 * Checks whether the given file is a WebJar or not (http://www.webjars.org/documentation).
 * The check is based on the presence of {@literal META-INF/resources/webjars/} directory in the jar file.
 *
 * @param file the file.//from   ww w. j  a  v a2  s.c  om
 * @return the set of libraries found in the file, {@code null} if none.
 */
public static Set<DetectedWebJar> isWebJar(File file) {
    Set<DetectedWebJar> found = new LinkedHashSet<>();
    if (file.isFile() && file.getName().endsWith(".jar")) {
        JarFile jar = null;
        try {
            jar = new JarFile(file);

            // Fast return if the base structure is not there
            if (jar.getEntry(WebJarController.WEBJAR_LOCATION) == null) {
                return null;
            }

            Enumeration<JarEntry> entries = jar.entries();
            while (entries.hasMoreElements()) {
                JarEntry entry = entries.nextElement();
                Matcher matcher = WebJarController.WEBJAR_REGEX.matcher(entry.getName());
                if (matcher.matches()) {
                    found.add(new DetectedWebJar(matcher.group(1), matcher.group(2), entry.getName(), file));
                }
            }
        } catch (IOException e) {
            LOGGER.error("Cannot check if the file {} is a webjar, " + "cannot open it", file.getName(), e);
            return null;
        } finally {
            final JarFile finalJar = jar;
            IOUtils.closeQuietly(new Closeable() {
                @Override
                public void close() throws IOException {
                    if (finalJar != null) {
                        finalJar.close();
                    }
                }
            });
        }

        for (DetectedWebJar lib : found) {
            LOGGER.info("Web Library found in {} : {}", file.getName(), lib.id);
        }

        return found;
    }

    return null;
}

---

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