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:com.xiovr.unibot.plugin.impl.PluginLoaderImpl.java

private Properties getPluginProps(File file) throws IOException {
    Properties result = null;//w w  w  .java  2  s  .com
    JarFile jar = new JarFile(file);
    Enumeration<JarEntry> entries = jar.entries();

    while (entries.hasMoreElements()) {
        JarEntry entry = entries.nextElement();
        if (entry.getName().equals(PROPERTY_FILE_NAME)) {
            // That's it! Load props
            InputStream is = null;
            try {
                is = jar.getInputStream(entry);
                result = new Properties();
                result.load(is);
            } finally {
                if (is != null)
                    is.close();
            }
        }
    }
    jar.close();
    return result;
}

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From source file:org.b3log.latke.servlet.RequestProcessors.java

/**
 * Scans classpath (lib directory) to discover request processor classes.
 *///from ww w  .  ja va 2 s.  c o  m
private static void discoverFromLibDir() {
    final String webRoot = AbstractServletListener.getWebRoot();
    final File libDir = new File(
            webRoot + File.separator + "WEB-INF" + File.separator + "lib" + File.separator);
    @SuppressWarnings("unchecked")
    final Collection<File> files = FileUtils.listFiles(libDir, new String[] { "jar" }, true);

    final ClassLoader classLoader = RequestProcessors.class.getClassLoader();

    try {
        for (final File file : files) {
            if (file.getName().contains("appengine-api") || file.getName().startsWith("freemarker")
                    || file.getName().startsWith("javassist") || file.getName().startsWith("commons")
                    || file.getName().startsWith("mail") || file.getName().startsWith("activation")
                    || file.getName().startsWith("slf4j") || file.getName().startsWith("bonecp")
                    || file.getName().startsWith("jsoup") || file.getName().startsWith("guava")
                    || file.getName().startsWith("markdown") || file.getName().startsWith("mysql")
                    || file.getName().startsWith("c3p0")) {
                // Just skips some known dependencies hardly....
                LOGGER.log(Level.INFO, "Skipped request processing discovery[jarName={0}]", file.getName());

                continue;
            }

            final JarFile jarFile = new JarFile(file.getPath());
            final Enumeration<JarEntry> entries = jarFile.entries();

            while (entries.hasMoreElements()) {
                final JarEntry jarEntry = entries.nextElement();
                final String classFileName = jarEntry.getName();

                if (classFileName.contains("$") // Skips inner class
                        || !classFileName.endsWith(".class")) {
                    continue;
                }

                final DataInputStream classInputStream = new DataInputStream(jarFile.getInputStream(jarEntry));

                final ClassFile classFile = new ClassFile(classInputStream);
                final AnnotationsAttribute annotationsAttribute = (AnnotationsAttribute) classFile
                        .getAttribute(AnnotationsAttribute.visibleTag);

                if (null == annotationsAttribute) {
                    continue;
                }

                for (Annotation annotation : annotationsAttribute.getAnnotations()) {
                    if ((annotation.getTypeName()).equals(RequestProcessor.class.getName())) {
                        // Found a request processor class, loads it
                        final String className = classFile.getName();
                        final Class<?> clz = classLoader.loadClass(className);

                        LOGGER.log(Level.FINER, "Found a request processor[className={0}]", className);
                        final Method[] declaredMethods = clz.getDeclaredMethods();

                        for (int i = 0; i < declaredMethods.length; i++) {
                            final Method mthd = declaredMethods[i];
                            final RequestProcessing requestProcessingMethodAnn = mthd
                                    .getAnnotation(RequestProcessing.class);

                            if (null == requestProcessingMethodAnn) {
                                continue;
                            }

                            addProcessorMethod(requestProcessingMethodAnn, clz, mthd);
                        }
                    }
                }
            }
        }
    } catch (final Exception e) {
        LOGGER.log(Level.SEVERE, "Scans classpath (lib directory) failed", e);
    }
}

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From source file:org.massyframework.modules.utils.SunJdkModuleExporter.java

/**
 * ?SunJdk??/*from   w  w  w.  j a  v  a  2 s .c  o  m*/
 * 
 * @param fileName
 * @return
 * @throws IOException
 */
protected List<String> getSunJdkPackageNames(String rtJar) throws IOException {
    Set<String> packageNames = new HashSet<String>();
    JarFile file = null;
    try {
        file = new JarFile(rtJar);
        Enumeration<JarEntry> em = file.entries();
        while (em.hasMoreElements()) {
            JarEntry entry = em.nextElement();
            if (!entry.isDirectory()) {
                String name = entry.getName();
                if (name.endsWith(".class")) {
                    int index = StringUtils.lastIndexOf(name, "/");
                    packageNames.add(StringUtils.substring(name, 0, index));
                }
            }
        }
    } finally {
        IOUtils.closeStream(file);
    }
    List<String> result = new ArrayList<String>(packageNames);
    Collections.sort(result);
    return result;
}

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

/**
 * Finds directories and files within a given directory and its subdirectories.
 *
 * @param classLoader//from  www  .  ja  v  a 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
 * @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();
        rootPath = StringUtils.removeStart(rootPath, "/");

        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, "/");
            }
            jarPath = root.getPath().substring(5, root.getPath().indexOf("!")); //strip out only the JAR file
            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);
    }
}

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From source file:org.apache.hadoop.hive.ql.exec.tez.HivePreWarmProcessor.java

@Override
public void run(Map<String, LogicalInput> inputs, Map<String, LogicalOutput> outputs) throws Exception {
    if (prewarmed) {
        /* container reuse */
        return;// w w  w .  j  a  va2 s. c o m
    }
    for (LogicalInput input : inputs.values()) {
        input.start();
    }
    for (LogicalOutput output : outputs.values()) {
        output.start();
    }
    /* these are things that goes through singleton initialization on most queries */
    FileSystem fs = FileSystem.get(conf);
    Mac mac = Mac.getInstance("HmacSHA1");
    ReadaheadPool rpool = ReadaheadPool.getInstance();
    ShimLoader.getHadoopShims();

    URL hiveurl = new URL("jar:" + DagUtils.getInstance().getExecJarPathLocal() + "!/");
    JarURLConnection hiveconn = (JarURLConnection) hiveurl.openConnection();
    JarFile hivejar = hiveconn.getJarFile();
    try {
        Enumeration<JarEntry> classes = hivejar.entries();
        while (classes.hasMoreElements()) {
            JarEntry je = classes.nextElement();
            if (je.getName().endsWith(".class")) {
                String klass = je.getName().replace(".class", "").replaceAll("/", "\\.");
                if (klass.indexOf("ql.exec") != -1 || klass.indexOf("ql.io") != -1) {
                    /* several hive classes depend on the metastore APIs, which is not included
                     * in hive-exec.jar. These are the relatively safe ones - operators & io classes.
                     */
                    if (klass.indexOf("vector") != -1 || klass.indexOf("Operator") != -1) {
                        JavaUtils.loadClass(klass);
                    }
                }
            }
        }
    } finally {
        hivejar.close();
    }
    prewarmed = true;
}

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From source file:org.xwiki.webjars.internal.WebJarsExportURLFactoryActionHandler.java

private void copyResourceFromJAR(String resourcePath, String prefix, ExportURLFactoryContext factoryContext)
        throws IOException {
    // Note that we cannot use ClassLoader.getResource() to access the resource since the resourcePath may point
    // to a directory inside the JAR, and in this case we need to copy all resources inside that directory in the
    // JAR!/* w ww.j a  va  2  s . c  o m*/

    JarFile jar = new JarFile(getJARFile(resourcePath));
    for (Enumeration<JarEntry> enumeration = jar.entries(); enumeration.hasMoreElements();) {
        JarEntry entry = enumeration.nextElement();
        if (entry.getName().startsWith(resourcePath) && !entry.isDirectory()) {
            // Copy the resource!
            String targetPath = prefix + entry.getName();
            File targetLocation = new File(factoryContext.getExportDir(), targetPath);
            if (!targetLocation.exists()) {
                targetLocation.getParentFile().mkdirs();
                FileOutputStream fos = new FileOutputStream(targetLocation);
                InputStream is = jar.getInputStream(entry);
                IOUtils.copy(is, fos);
                fos.close();
                is.close();
            }
        }
    }
    jar.close();
}

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From source file:de.micromata.tpsb.doc.sources.JarSourceFileRepository.java

@Override
public Collection<JavaSourceFileHolder> getSources() {
    List<JavaSourceFileHolder> fileContentList = new ArrayList<JavaSourceFileHolder>();

    for (String jarFileName : getLocations()) {
        try {/*  w w w  .  j a va2s  .  c o  m*/
            JarFile jarFile;
            jarFile = new JarFile(jarFileName);
            Enumeration<? extends ZipEntry> jarEntryEnum = jarFile.entries();

            while (jarEntryEnum.hasMoreElements()) {
                JarEntry jarEntry = (JarEntry) jarEntryEnum.nextElement();

                // nur Java-Dateien beachten
                if (jarEntry.isDirectory() || StringUtils.endsWith(jarEntry.getName(), ".java") == false) {
                    continue;
                }

                String javaFilename = jarEntry.getName();
                String javaFileContent = getContents(jarFile, jarEntry);

                if (StringUtils.isBlank(javaFileContent) == true) {
                    continue;
                }
                JavaSourceFileHolder fileHolder = new JavaSourceFileHolder(javaFilename, javaFileContent);
                fileHolder.setSource(Source.Jar);
                fileHolder.setOrigin(jarFileName);
                fileContentList.add(fileHolder);
            }
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
    return fileContentList;
}

---

From source file:javadepchecker.Main.java

public void processJar(JarFile jar) throws IOException {
    for (Enumeration<JarEntry> e = jar.entries(); e.hasMoreElements();) {
        JarEntry entry = e.nextElement();
        String name = entry.getName();
        if (!entry.isDirectory() && name.endsWith(".class")) {
            this.current.add(name);
            InputStream stream = jar.getInputStream(entry);
            ClassParser parser = new ClassParser(stream, name);
            JavaClass jclass = parser.parse();
            this.pool = jclass.getConstantPool();
            new DescendingVisitor(jclass, this).visitConstantPool(this.pool);
        }/*from  w w w.  j a va  2 s .  co  m*/
    }
}

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From source file:hudson.remoting.RegExpBenchmark.java

private List<String> getAllRTClasses() throws Exception {
    List<String> classes = new ArrayList<String>();
    // Object.class.getProtectionDomain().getCodeSource() returns null :(
    String javaHome = System.getProperty("java.home");
    JarFile jf = new JarFile(javaHome + "/lib/rt.jar");
    for (JarEntry je : Collections.list(jf.entries())) {
        if (!je.isDirectory() && je.getName().endsWith(".class")) {
            String name = je.getName().replace('/', '.');
            // remove the .class
            name = name.substring(0, name.length() - 6);
            classes.add(name);//from w w w.java2s .  co m
        }
    }
    jf.close();
    // add in a couple from xalan and commons just for testing...
    classes.add(new String("org.apache.commons.collections.functors.EvilClass"));
    classes.add(new String("org.codehaus.groovy.runtime.IWIllHackYou"));
    classes.add(new String("org.apache.xalan.YouAreOwned"));
    return classes;
}

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From source file:i18nplugin.TranslationNode.java

/**
 * Create Tree//ww  w  . ja v a 2s. co  m
 * @param string Name of Tree-Node
 * @param file Jar-File with Properties
 */
public TranslationNode(String string, File file) {
    super(string);

    try {
        JarFile jarfile = new JarFile(file);

        Enumeration<JarEntry> entries = jarfile.entries();

        while (entries.hasMoreElements()) {
            JarEntry entry = entries.nextElement();

            if (entry.getName().endsWith(".properties")) {
                String name = entry.getName();

                name = name.substring(0, name.length() - 11);

                if (name.indexOf('/') >= 0) {
                    String dir = StringUtils.substringBeforeLast(name, "/");

                    if (dir.contains("/")) {
                        dir = StringUtils.substringAfterLast(dir, "/");
                    }

                    name = StringUtils.substringAfterLast(name, "/");

                    if (name.equals(dir)) {
                        addEntry(jarfile, entry);
                    }
                }
            }
        }

    } catch (IOException e) {
        e.printStackTrace();
    }

}

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