Example usage for java.net JarURLConnection getJarFile

Introduction

In this page you can find the example usage for java.net JarURLConnection getJarFile.

Prototype

public abstract JarFile getJarFile() throws IOException;

Source Link

Document

Return the JAR file for this connection.

Usage

From source file:Main.java

public static List<Class<?>> getClassesForPackage(final String iPackageName, final ClassLoader iClassLoader)
        throws ClassNotFoundException {
    // This will hold a list of directories matching the pckgname.
    // There may be more than one if a package is split over multiple jars/paths
    List<Class<?>> classes = new ArrayList<Class<?>>();
    ArrayList<File> directories = new ArrayList<File>();
    try {//from w  ww . jav  a 2s. c o m
        // Ask for all resources for the path
        final String packageUrl = iPackageName.replace('.', '/');
        Enumeration<URL> resources = iClassLoader.getResources(packageUrl);
        if (!resources.hasMoreElements()) {
            resources = iClassLoader.getResources(packageUrl + CLASS_EXTENSION);
            if (resources.hasMoreElements()) {
                throw new IllegalArgumentException(
                        iPackageName + " does not appear to be a valid package but a class");
            }
        } else {
            while (resources.hasMoreElements()) {
                URL res = resources.nextElement();
                if (res.getProtocol().equalsIgnoreCase("jar")) {
                    JarURLConnection conn = (JarURLConnection) res.openConnection();
                    JarFile jar = conn.getJarFile();
                    for (JarEntry e : Collections.list(jar.entries())) {

                        if (e.getName().startsWith(iPackageName.replace('.', '/'))
                                && e.getName().endsWith(CLASS_EXTENSION) && !e.getName().contains("$")) {
                            String className = e.getName().replace("/", ".").substring(0,
                                    e.getName().length() - 6);
                            classes.add(Class.forName(className));
                        }
                    }
                } else
                    directories.add(new File(URLDecoder.decode(res.getPath(), "UTF-8")));
            }
        }
    } catch (NullPointerException x) {
        throw new ClassNotFoundException(
                iPackageName + " does not appear to be " + "a valid package (Null pointer exception)");
    } catch (UnsupportedEncodingException encex) {
        throw new ClassNotFoundException(
                iPackageName + " does not appear to be " + "a valid package (Unsupported encoding)");
    } catch (IOException ioex) {
        throw new ClassNotFoundException(
                "IOException was thrown when trying " + "to get all resources for " + iPackageName);
    }

    // For every directory identified capture all the .class files
    for (File directory : directories) {
        if (directory.exists()) {
            // Get the list of the files contained in the package
            File[] files = directory.listFiles();
            for (File file : files) {
                if (file.isDirectory()) {
                    classes.addAll(findClasses(file, iPackageName));
                } else {
                    String className;
                    if (file.getName().endsWith(CLASS_EXTENSION)) {
                        className = file.getName().substring(0,
                                file.getName().length() - CLASS_EXTENSION.length());
                        classes.add(Class.forName(iPackageName + '.' + className));
                    }
                }
            }
        } else {
            throw new ClassNotFoundException(
                    iPackageName + " (" + directory.getPath() + ") does not appear to be a valid package");
        }
    }
    return classes;
}

---

From source file:cz.lbenda.common.ClassLoaderHelper.java

/** Stream of class which is in given packages
 * @param basePackage base package/*  w ww.  j  av  a 2  s  .  c  om*/
 * @param classLoader class loader where is classes found
 * @return stream of class names */
public static List<String> classInPackage(String basePackage, ClassLoader classLoader) {
    List<String> result = new ArrayList<>();
    try {
        for (Enumeration<URL> resources = classLoader.getResources(basePackage.replace(".", "/")); resources
                .hasMoreElements();) {
            URL url = resources.nextElement();
            if (String.valueOf(url).startsWith("file:")) {
                File file = new File(url.getFile());
                int prefixLength = url.getFile().length() - basePackage.length();
                List<File> files = subClasses(file);
                files.stream().forEach(f -> {
                    String fName = f.getAbsolutePath();
                    result.add(fName.substring(prefixLength, fName.length() - 6).replace("/", "."));
                });
            } else {
                URLConnection urlCon = url.openConnection();
                if (urlCon instanceof JarURLConnection) {
                    JarURLConnection jarURLConnection = (JarURLConnection) urlCon;
                    try (JarFile jar = jarURLConnection.getJarFile()) {
                        jar.stream().forEach(entry -> {
                            String entryName = entry.getName();
                            if (entryName.endsWith(".class") && entryName.startsWith(basePackage)) {
                                result.add(entryName.substring(0, entryName.length() - 6));
                            }
                        });
                    }
                }
            }
        }
    } catch (IOException e) {
        throw new RuntimeException(e);
    }
    return result;
}

---

From source file:net.sourceforge.tess4j.util.LoadLibs.java

/**
 * Copies resources from the jar file of the current thread and extract it
 * to the destination path.//  www.j a v  a 2  s. c  om
 *
 * @param jarConnection
 * @param destPath destination file or directory
 */
static void copyJarResourceToPath(JarURLConnection jarConnection, File destPath) {
    try {
        JarFile jarFile = jarConnection.getJarFile();
        String jarConnectionEntryName = jarConnection.getEntryName();

        /**
         * Iterate all entries in the jar file.
         */
        for (Enumeration<JarEntry> e = jarFile.entries(); e.hasMoreElements();) {
            JarEntry jarEntry = e.nextElement();
            String jarEntryName = jarEntry.getName();

            /**
             * Extract files only if they match the path.
             */
            if (jarEntryName.startsWith(jarConnectionEntryName)) {
                String filename = jarEntryName.substring(jarConnectionEntryName.length());
                File currentFile = new File(destPath, filename);

                if (jarEntry.isDirectory()) {
                    currentFile.mkdirs();
                } else {
                    currentFile.deleteOnExit();
                    InputStream is = jarFile.getInputStream(jarEntry);
                    OutputStream out = FileUtils.openOutputStream(currentFile);
                    IOUtils.copy(is, out);
                    is.close();
                    out.close();
                }
            }
        }
    } catch (IOException e) {
        logger.log(Level.SEVERE, e.getMessage(), e);
    }
}

---

From source file:com.wordnik.swagger.codegen.util.FileUtil.java

public static boolean copyJarResourcesRecursively(final File destDir, final JarURLConnection jarConnection)
        throws IOException {

    final JarFile jarFile = jarConnection.getJarFile();

    for (final Enumeration<JarEntry> e = jarFile.entries(); e.hasMoreElements();) {
        final JarEntry entry = e.nextElement();
        if (entry.getName().startsWith(jarConnection.getEntryName())) {
            final String filename = StringUtils.removeStart(entry.getName(), //
                    jarConnection.getEntryName());

            final File f = new File(destDir, filename);
            if (!entry.isDirectory()) {
                final InputStream entryInputStream = jarFile.getInputStream(entry);
                if (!FileUtil.copyStream(entryInputStream, f)) {
                    return false;
                }//from   w  w w. j  a v  a  2s .c  o  m
                entryInputStream.close();
            } else {
                if (!FileUtil.ensureDirectoryExists(f)) {
                    throw new IOException("Could not create directory: " + f.getAbsolutePath());
                }
            }
        }
    }
    return true;
}

---

From source file:org.reprap.configuration.store.ConfigurationInitializer.java

private static void copyJarTree(final URL source, final File target) throws IOException {
    final JarURLConnection jarConnection = (JarURLConnection) source.openConnection();
    final String prefix = jarConnection.getEntryName();
    final JarFile jarFile = jarConnection.getJarFile();
    for (final JarEntry jarEntry : Collections.list(jarFile.entries())) {
        final String entryName = jarEntry.getName();
        if (entryName.startsWith(prefix)) {
            if (!jarEntry.isDirectory()) {
                final String fileName = StringUtils.removeStart(entryName, prefix);
                final InputStream fileStream = jarFile.getInputStream(jarEntry);
                try {
                    FileUtils.copyInputStreamToFile(fileStream, new File(target, fileName));
                } finally {
                    fileStream.close();//  w w w.  j a  v a 2s. c o  m
                }
            }
        }
    }
}

---

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

private static void includeVaadinAddonJar(File file, List<VaadinAddonInfo> addons) {
    try {/*from  w  w  w .j a v  a  2 s .  c  o  m*/
        URL url = new URL("file:" + file.getCanonicalPath());
        url = new URL("jar:" + url.toExternalForm() + "!/");
        JarURLConnection conn = (JarURLConnection) url.openConnection();
        JarFile jarFile = conn.getJarFile();
        if (jarFile != null) {
            Manifest manifest = jarFile.getManifest();
            if (manifest == null) {
                // No manifest so this is not a Vaadin Add-on
                return;
            }

            Attributes attrs = manifest.getMainAttributes();
            String value = attrs.getValue("Vaadin-Widgetsets");
            if (value != null) {
                String name = attrs.getValue("Implementation-Title");
                String version = attrs.getValue("Implementation-Version");
                if (name == null || version == null) {
                    // A jar file with Vaadin-Widgetsets but name or version
                    // missing. Most probably vaadin.jar itself, skipping it
                    // here
                    return;
                }

                List<String> widgetsets = new ArrayList<String>();
                String[] widgetsetNames = value.split(",");
                for (String wName : widgetsetNames) {
                    String widgetsetname = wName.trim().intern();
                    if (!widgetsetname.equals("")) {
                        widgetsets.add(widgetsetname);
                    }
                }

                if (!widgetsets.isEmpty()) {
                    addons.add(new VaadinAddonInfo(name, version, file, widgetsets));
                }
            }
        }
    } catch (Exception e) {
        log.warn("Exception trying to include Vaadin Add-ons.", e);
    }

}

---

From source file:org.jboss.tools.jst.web.kb.taglib.TagLibraryManager.java

private static File convertUriToFile(String uri) throws IOException {
    File file = tempFiles.get(uri);
    if (file != null && file.exists()) {
        return file;
    }/* w  w w.ja v  a  2  s  .com*/

    URL url = new URL(uri);
    String filePath = url.getFile();
    file = new File(filePath);
    if (!file.exists()) {
        URLConnection c = url.openConnection();
        if (c instanceof JarURLConnection) {
            JarURLConnection connection = (JarURLConnection) c;
            JarFile jar = connection.getJarFile();
            JarEntry entry = connection.getJarEntry();

            File entryFile = new File(entry.getName());
            String name = entryFile.getName();
            String prefix = name;
            String sufix = null;
            int i = name.lastIndexOf('.');
            if (i > 0 && i < name.length()) {
                prefix = name.substring(0, i);
                sufix = name.substring(i);
            }
            while (prefix.length() < 3) {
                prefix += "_";
            }

            WebKbPlugin plugin = WebKbPlugin.getDefault();
            if (plugin != null) {
                //The plug-in instance can be null at shutdown, when the plug-in is stopped. 
                IPath path = plugin.getStateLocation();
                File tmp = new File(path.toFile(), "tmp"); //$NON-NLS-1$
                tmp.mkdirs();
                file = File.createTempFile(prefix, sufix, tmp);
                file.deleteOnExit();

                InputStream in = null;
                try {
                    in = jar.getInputStream(entry);
                    FileOutputStream out = new FileOutputStream(file);
                    IOUtils.copy(in, out);

                } finally {
                    IOUtils.closeQuietly(in);
                }
            }
        }
    }
    if (file.exists()) {
        tempFiles.put(uri, file);
    } else {
        file = null;
    }
    return file;
}

---

From source file:org.mrgeo.utils.ClassLoaderUtil.java

public static List<URL> loadJar(String path, URL resource) throws IOException {
    JarURLConnection conn = (JarURLConnection) resource.openConnection();
    JarFile jarFile = conn.getJarFile();
    Enumeration<JarEntry> entries = jarFile.entries();
    List<URL> result = new LinkedList<URL>();

    String p = path;/*from  www. j  ava 2s.c o m*/
    if (p.endsWith("/") == false) {
        p = p + "/";
    }

    while (entries.hasMoreElements()) {
        JarEntry entry = entries.nextElement();
        if ((!entry.getName().equals(p))
                && (entry.getName().startsWith(p) || entry.getName().startsWith("WEB-INF/classes/" + p))) {
            URL url = new URL("jar:" + new URL("file", null, jarFile.getName() + "!/" + entry.getName()));
            result.add(url);
        }
    }

    return result;
}

---

From source file:com.vmware.admiral.closures.util.ClosureUtils.java

private static void buildTarData(URL dirURL, String folderNameFilter, OutputStream outputStream)
        throws IOException {
    final JarURLConnection jarConnection = (JarURLConnection) dirURL.openConnection();
    final ZipFile jar = jarConnection.getJarFile();
    final Enumeration<? extends ZipEntry> entries = jar.entries();

    try (TarArchiveOutputStream tarArchiveOutputStream = buildTarStream(outputStream)) {
        while (entries.hasMoreElements()) {
            final ZipEntry entry = entries.nextElement();
            final String name = entry.getName();
            if (!name.startsWith(folderNameFilter)) {
                // entry in wrong subdir -- don't copy
                continue;
            }/* w w w .  j a v  a2s. c  o m*/
            TarArchiveEntry tarEntry = new TarArchiveEntry(entry.getName().replaceAll(folderNameFilter, ""));
            try (InputStream is = jar.getInputStream(entry)) {
                putTarEntry(tarArchiveOutputStream, tarEntry, is, entry.getSize());
            }
        }

        tarArchiveOutputStream.flush();
        tarArchiveOutputStream.close();
    }
}

---

From source file:org.mrgeo.utils.ClassLoaderUtil.java

public static Collection<String> getMostJars() {

    ClassLoader classLoader = Thread.currentThread().getContextClassLoader();
    try {/*from   w  ww  . j  av a2 s .  co  m*/
        // this seems to populate more jars. Odd.
        getChildResources("META-INF/services");
        getChildResources("");
        getChildResources("/");

    } catch (Exception e1) {
        e1.printStackTrace();
    }
    Thief t = new Thief(classLoader);
    Package[] packages = t.getPackages();
    TreeSet<String> result = new TreeSet<String>();

    for (Package p : packages) {
        Enumeration<URL> urls;
        try {
            String path = p.getName().replace(".", "/");

            urls = classLoader.getResources(path);
            while (urls.hasMoreElements()) {
                URL resource = urls.nextElement();
                if (resource.getProtocol().equalsIgnoreCase("jar")) {
                    JarURLConnection conn = (JarURLConnection) resource.openConnection();
                    JarFile jarFile = conn.getJarFile();
                    result.add(jarFile.getName());
                }
            }
        } catch (IOException e) {
            e.printStackTrace();
        }
    }

    return result;
}

---

• «
• 1
• 2
• 3
• 4
• 5
• 6
• 7
• 8
• 9
• »