Example usage for java.util.jar JarFile entries

List of usage examples for java.util.jar JarFile entries

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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.xwiki.webjars.internal.FilesystemResourceReferenceCopier.java

void copyResourceFromJAR(String resourcePrefix, String resourceName, String targetPrefix,
        FilesystemExportContext exportContext) 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!/*from ww  w  .  ja  v  a  2s.  c o  m*/

    String resourcePath = String.format(CONCAT_PATH_FORMAT, resourcePrefix, resourceName);
    JarFile jar = new JarFile(getJARFile(resourcePath));
    try {
        for (Enumeration<JarEntry> enumeration = jar.entries(); enumeration.hasMoreElements();) {
            JarEntry entry = enumeration.nextElement();
            if (entry.getName().startsWith(resourcePath) && !entry.isDirectory()) {
                // Copy the resource!
                // TODO: Won't this cause collisions if the same resource is available on several subwikis
                // for example?
                String targetPath = targetPrefix + entry.getName().substring(resourcePrefix.length());
                File targetLocation = new File(exportContext.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();
                }
            }
        }
    } finally {
        jar.close();
    }
}

From source file:com.fengduo.bee.commons.core.utilities.ClassPathScanner.java

void findInJar(List<Class<?>> results, File file, String packageName) {
    JarFile jarFile = null;
    String packagePath = dotToPath(packageName) + "/";
    try {//from  ww w .  j  a va 2s  .  c o m
        jarFile = new JarFile(file);
        Enumeration<JarEntry> en = jarFile.entries();
        while (en.hasMoreElements()) {
            JarEntry je = en.nextElement();
            String name = je.getName();
            if (name.startsWith(packagePath) && name.endsWith(CLASS_FILE)) {
                String className = name.substring(0, name.length() - CLASS_FILE.length());
                add(results, pathToDot(className));
            }
        }
    } catch (IOException e) {
        e.printStackTrace();
    } finally {
        if (jarFile != null) {
            try {
                jarFile.close();
            } catch (IOException e) {
            }
        }
    }
}

From source file:org.apache.hadoop.chukwa.hicc.HiccWebServer.java

public List<String> getResourceListing(String path) throws URISyntaxException, IOException {
    ClassLoader contextClassLoader = Thread.currentThread().getContextClassLoader();
    URL dirURL = contextClassLoader.getResource(path);

    if (dirURL == null) {
        dirURL = contextClassLoader.getResource(path);
    }//w  w w.  j a  v a2 s . c  o m

    if (dirURL.getProtocol().equals("jar")) {
        /* A JAR path */
        String jarPath = dirURL.getPath().substring(5, dirURL.getPath().indexOf("!")); //strip out only the JAR file
        JarFile jar = new JarFile(jarPath);
        Enumeration<JarEntry> entries = jar.entries(); //gives ALL entries in jar
        List<String> result = new ArrayList<String>(); //avoid duplicates in case it is a subdirectory
        while (entries.hasMoreElements()) {
            String name = entries.nextElement().getName();
            if (name.startsWith(path)) { //filter according to the path
                String entry = name.substring(path.length());
                int checkSubdir = entry.indexOf("/");
                if (checkSubdir == 0 && entry.length() > 1) {
                    // if it is a subdirectory, we just return the directory name
                    result.add(name);
                }
            }
        }
        return result;
    }

    throw new UnsupportedOperationException("Cannot list files for URL " + dirURL);
}

From source file:com.netease.hearttouch.hthotfix.HashTransformExecutor.java

public void transformJar(File inputFile, File outputFile) throws IOException {
    logger.info("HASHTRANSFORMJAR\t" + outputFile.getAbsolutePath());
    final JarFile jar = new JarFile(inputFile);
    final OutputJar outputJar = new OutputJar(outputFile);
    for (final Enumeration<JarEntry> entries = jar.entries(); entries.hasMoreElements();) {
        final JarEntry entry = entries.nextElement();
        if (entry.isDirectory()) {
            //                new File(outFile, entry.getName()).mkdirs();
            continue;
        }/*from w w  w.  j a v  a2 s.c  om*/
        final InputStream is = jar.getInputStream(entry);

        try {
            byte[] bytecode = IOUtils.toByteArray(is);
            if (entry.getName().endsWith(".class")) {
                if (!extension.getGeneratePatch()) {
                    hashFileGenerator.addClass(bytecode);
                    ClassReader cr = new ClassReader(bytecode);

                    outputJar.writeEntry(entry, hackInjector.inject(cr.getClassName(), bytecode));
                } else {
                    outputJar.writeEntry(entry, bytecode);
                }
            } else {
                outputJar.writeEntry(entry, bytecode);
            }
        } finally {
            IOUtils.closeQuietly(is);
        }
    }
    outputJar.close();
}

From source file:es.jamisoft.comun.utils.compression.Jar.java

public void descomprimir(String lsDirDestino) {
    try {// w ww.j a v a  2s .c  om
        JarFile lzfFichero = new JarFile(isFicheroJar);
        Enumeration lenum = lzfFichero.entries();
        JarArchiveEntry entrada = null;
        InputStream linput;

        for (; lenum.hasMoreElements(); linput.close()) {
            entrada = (JarArchiveEntry) lenum.nextElement();
            linput = lzfFichero.getInputStream(entrada);

            byte labBytes[] = new byte[2048];
            int liLeido = -1;
            String lsRutaDestino = lsDirDestino + File.separator + entrada.getName();

            lsRutaDestino = lsRutaDestino.replace('\\', File.separatorChar);

            File lfRutaCompleta = new File(lsRutaDestino);
            String lsRuta = lfRutaCompleta.getAbsolutePath();
            int liPosSeparator = lsRuta.lastIndexOf(File.separatorChar);

            lsRuta = lsRuta.substring(0, liPosSeparator);

            File ldDir = new File(lsRuta);
            boolean lbCreado = ldDir.mkdirs();

            if (entrada.isDirectory()) {
                continue;
            }

            FileOutputStream loutput = new FileOutputStream(lfRutaCompleta);

            if (entrada.getSize() > 0L) {
                while ((liLeido = linput.read(labBytes, 0, 2048)) != -1) {
                    loutput.write(labBytes, 0, liLeido);
                }
            }

            loutput.flush();
            loutput.close();
        }

        lzfFichero.close();
    } catch (Exception e) {
        e.printStackTrace();
    }
}

From source file:com.netease.hearttouch.hthotfix.patch.PatchRefGeneratorTransformExecutor.java

public void transformJar(File inputFile, File outputFile) throws IOException {
    final JarFile jar = new JarFile(inputFile);
    final OutputJar outputJar = new OutputJar(outputFile);
    for (final Enumeration<JarEntry> entries = jar.entries(); entries.hasMoreElements();) {
        final JarEntry entry = entries.nextElement();
        if (entry.isDirectory()) {
            continue;
        }/*from ww  w. j av  a  2  s .c om*/
        final InputStream is = jar.getInputStream(entry);
        try {

            byte[] bytecode = IOUtils.toByteArray(is);
            if (entry.getName().endsWith(".class")) {
                if (extension.getGeneratePatch() && extension.getScanRef()) {
                    ClassReader cr = new ClassReader(bytecode);
                    String className = cr.getClassName();
                    if (extension.getGeneratePatch() && extension.getScanRef()) {
                        if (!refScanInstrument.isPatchClass(className.replace("/", "."))) {
                            boolean bPatchRef = refScanInstrument.hasReference(bytecode, project);
                            if (bPatchRef) {
                                patchJarHelper.writeClassToDirectory(className, bytecode);
                            }
                        }
                    }
                }
                outputJar.writeEntry(entry, bytecode);
            } else {
                outputJar.writeEntry(entry, bytecode);
            }
        } finally {
            IOUtils.closeQuietly(is);
        }
    }
    outputJar.close();
}

From source file:com.opensymphony.xwork2.util.finder.ResourceFinder.java

private static void readJarEntries(URL location, String basePath, Map<String, URL> resources)
        throws IOException {
    JarURLConnection conn = (JarURLConnection) location.openConnection();
    JarFile jarfile = null;
    jarfile = conn.getJarFile();/*from w ww.  ja  va  2 s .  co  m*/

    Enumeration<JarEntry> entries = jarfile.entries();
    while (entries != null && entries.hasMoreElements()) {
        JarEntry entry = entries.nextElement();
        String name = entry.getName();

        if (entry.isDirectory() || !name.startsWith(basePath) || name.length() == basePath.length()) {
            continue;
        }

        name = name.substring(basePath.length());

        if (name.contains("/")) {
            continue;
        }

        URL resource = new URL(location, name);
        resources.put(name, resource);
    }
}

From source file:org.sonatype.maven.plugin.emma4it.InstrumentProjectArtifactMojo.java

private void append(JarOutputStream output, File jar, boolean excludeMetainf) throws IOException {
    JarFile ejar = new JarFile(jar);

    Enumeration<JarEntry> entries = ejar.entries();
    while (entries.hasMoreElements()) {
        JarEntry jarEntry = entries.nextElement();
        if (jarEntry.isDirectory() || (excludeMetainf && jarEntry.getName().startsWith("META-INF"))) {
            continue;
        }//from w  ww.ja  v a 2s  .co  m

        output.putNextEntry(jarEntry);

        InputStream input = ejar.getInputStream(jarEntry);
        try {
            IOUtil.copy(input, output);
        } finally {
            IOUtil.close(input);
        }

        output.flush();
    }

}

From source file:com.netease.hearttouch.hthotfix.patch.PatchGeneratorTransformExecutor.java

public void transformJar(File inputFile, File outputFile) throws IOException {
    final JarFile jar = new JarFile(inputFile);
    final OutputJar outputJar = new OutputJar(outputFile);
    for (final Enumeration<JarEntry> entries = jar.entries(); entries.hasMoreElements();) {
        final JarEntry entry = entries.nextElement();
        if (entry.isDirectory()) {
            continue;
        }/*w  ww.java2s  .  c om*/
        final InputStream is = jar.getInputStream(entry);
        try {

            byte[] bytecode = IOUtils.toByteArray(is);
            if (entry.getName().endsWith(".class")) {
                if (extension.getGeneratePatch()) {
                    ClassReader cr = new ClassReader(bytecode);
                    String className = cr.getClassName();
                    if ((hashFileParser != null) && (hashFileParser.isChanged(className, bytecode))) {
                        patchJarHelper.writeClassToDirectory(className,
                                hackInjector.inject(className, bytecode));
                        refScanInstrument.addPatchClassName(className, hackInjector.getLastSuperName());
                    }
                }
                outputJar.writeEntry(entry, bytecode);
            } else {
                outputJar.writeEntry(entry, bytecode);
            }
        } finally {
            IOUtils.closeQuietly(is);
        }
    }
    outputJar.close();
}

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);
            new ClassReader(stream).accept(this, 0);
        }//from w  w  w  . j av a 2s  . c  om
    }
}