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.springframework.web.context.support.ServletContextResourcePatternResolver.java

/**
 * Extract entries from the given jar by pattern.
 * @param jarFilePath the path to the jar file
 * @param entryPattern the pattern for jar entries to match
 * @param result the Set of matching Resources to add to
 *///from  w  w w. j a v a  2s  . c  o  m
private void doRetrieveMatchingJarEntries(String jarFilePath, String entryPattern, Set<Resource> result) {
    if (logger.isDebugEnabled()) {
        logger.debug("Searching jar file [" + jarFilePath + "] for entries matching [" + entryPattern + "]");
    }
    try {
        JarFile jarFile = new JarFile(jarFilePath);
        try {
            for (Enumeration<JarEntry> entries = jarFile.entries(); entries.hasMoreElements();) {
                JarEntry entry = entries.nextElement();
                String entryPath = entry.getName();
                if (getPathMatcher().match(entryPattern, entryPath)) {
                    result.add(new UrlResource(ResourceUtils.URL_PROTOCOL_JAR, ResourceUtils.FILE_URL_PREFIX
                            + jarFilePath + ResourceUtils.JAR_URL_SEPARATOR + entryPath));
                }
            }
        } finally {
            jarFile.close();
        }
    } catch (IOException ex) {
        if (logger.isWarnEnabled()) {
            logger.warn("Cannot search for matching resources in jar file [" + jarFilePath
                    + "] because the jar cannot be opened through the file system", ex);
        }
    }
}

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From source file:Zip.java

/**
 * Reads a Jar file, displaying the attributes in its manifest and dumping
 * the contents of each file contained to the console.
 *//*  w w  w. j av  a2s. com*/
public static void readJarFile(String fileName) {
    JarFile jarFile = null;
    try {
        // JarFile extends ZipFile and adds manifest information
        jarFile = new JarFile(fileName);
        if (jarFile.getManifest() != null) {
            System.out.println("Manifest Main Attributes:");
            Iterator iter = jarFile.getManifest().getMainAttributes().keySet().iterator();
            while (iter.hasNext()) {
                Attributes.Name attribute = (Attributes.Name) iter.next();
                System.out.println(
                        attribute + " : " + jarFile.getManifest().getMainAttributes().getValue(attribute));
            }
            System.out.println();
        }
        // use the Enumeration to dump the contents of each file to the console
        System.out.println("Jar file entries:");
        for (Enumeration e = jarFile.entries(); e.hasMoreElements();) {
            JarEntry jarEntry = (JarEntry) e.nextElement();
            if (!jarEntry.isDirectory()) {
                System.out.println(jarEntry.getName() + " contains:");
                BufferedReader jarReader = new BufferedReader(
                        new InputStreamReader(jarFile.getInputStream(jarEntry)));
                while (jarReader.ready()) {
                    System.out.println(jarReader.readLine());
                }
                jarReader.close();
            }
        }
    } catch (IOException ioe) {
        System.out.println("An IOException occurred: " + ioe.getMessage());
    } finally {
        if (jarFile != null) {
            try {
                jarFile.close();
            } catch (IOException ioe) {
            }
        }
    }
}

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From source file:org.apache.maven.shared.osgi.DefaultMaven2OsgiConverter.java

private String getGroupIdFromPackage(File artifactFile) {
    try {//from  w ww .  j a  v  a 2  s .  c  om
        /* get package names from jar */
        Set packageNames = new HashSet();
        JarFile jar = new JarFile(artifactFile, false);
        Enumeration entries = jar.entries();
        while (entries.hasMoreElements()) {
            ZipEntry entry = (ZipEntry) entries.nextElement();
            if (entry.getName().endsWith(".class")) {
                File f = new File(entry.getName());
                String packageName = f.getParent();
                if (packageName != null) {
                    packageNames.add(packageName);
                }
            }
        }
        jar.close();

        /* find the top package */
        String[] groupIdSections = null;
        for (Iterator it = packageNames.iterator(); it.hasNext();) {
            String packageName = (String) it.next();

            String[] packageNameSections = packageName.split("\\" + FILE_SEPARATOR);
            if (groupIdSections == null) {
                /* first candidate */
                groupIdSections = packageNameSections;
            } else
            // if ( packageNameSections.length < groupIdSections.length )
            {
                /*
                 * find the common portion of current package and previous selected groupId
                 */
                int i;
                for (i = 0; (i < packageNameSections.length) && (i < groupIdSections.length); i++) {
                    if (!packageNameSections[i].equals(groupIdSections[i])) {
                        break;
                    }
                }
                groupIdSections = new String[i];
                System.arraycopy(packageNameSections, 0, groupIdSections, 0, i);
            }
        }

        if ((groupIdSections == null) || (groupIdSections.length == 0)) {
            return null;
        }

        /* only one section as id doesn't seem enough, so ignore it */
        if (groupIdSections.length == 1) {
            return null;
        }

        StringBuffer sb = new StringBuffer();
        for (int i = 0; i < groupIdSections.length; i++) {
            sb.append(groupIdSections[i]);
            if (i < groupIdSections.length - 1) {
                sb.append('.');
            }
        }
        return sb.toString();
    } catch (IOException e) {
        /* we took all the precautions to avoid this */
        throw new RuntimeException(e);
    }
}

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From source file:com.eucalyptus.simpleworkflow.common.client.WorkflowClientStandalone.java

private void processJar(File f) throws Exception {
    final JarFile jar = new JarFile(f);
    final Properties props = new Properties();
    final List<JarEntry> jarList = Collections.list(jar.entries());
    LOG.trace("-> Trying to load component info from " + f.getAbsolutePath());
    for (final JarEntry j : jarList) {
        try {/*w ww.  j a  v  a  2 s . c o  m*/
            if (j.getName().matches(".*\\.class.{0,1}")) {
                handleClassFile(f, j);
            }
        } catch (RuntimeException ex) {
            LOG.error(ex, ex);
            jar.close();
            throw ex;
        }
    }
    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 {//www  . jav  a 2 s  .  com
        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:com.zb.jcseg.core.JcsegTaskConfig.java

public static void unJar(JarFile jar, File toDir) throws IOException {
    try {//from  w  ww .  jav  a  2  s.  c om
        Enumeration<JarEntry> entries = jar.entries();
        while (entries.hasMoreElements()) {
            JarEntry entry = (JarEntry) entries.nextElement();
            if (!entry.isDirectory()) {
                InputStream in = jar.getInputStream(entry);
                try {
                    File file = new File(toDir, entry.getName());
                    if (!file.getParentFile().mkdirs()) {
                        if (!file.getParentFile().isDirectory()) {
                            throw new IOException("Mkdirs failed to create " + file.getParentFile().toString());
                        }
                    }
                    OutputStream out = new FileOutputStream(file);
                    try {
                        byte[] buffer = new byte[8192];
                        int i;
                        while ((i = in.read(buffer)) != -1) {
                            out.write(buffer, 0, i);
                        }
                    } finally {
                        out.close();
                    }
                } finally {
                    in.close();
                }
            }
        }
    } finally {
        jar.close();
    }
}

---

From source file:SerialVersionUID.java

/**
 * Build a TreeMap of the class name to ClassVersionInfo
 * //w w w .j  a  v  a2  s .c  o m
 * @param jar
 * @param classVersionMap
 *          TreeMap<String, ClassVersionInfo> for serializable classes
 * @param cl -
 *          the class loader to use
 * @throws IOException
 *           thrown if the jar cannot be opened
 */
static void generateJarSerialVersionUIDs(URL jar, TreeMap classVersionMap, ClassLoader cl, String pkgPrefix)
        throws IOException {
    String jarName = jar.getFile();
    JarFile jf = new JarFile(jarName);
    Enumeration entries = jf.entries();
    while (entries.hasMoreElements()) {
        JarEntry entry = (JarEntry) entries.nextElement();
        String name = entry.getName();
        if (name.endsWith(".class") && name.startsWith(pkgPrefix)) {
            name = name.substring(0, name.length() - 6);
            String classname = name.replace('/', '.');
            try {
                log.fine("Creating ClassVersionInfo for: " + classname);
                ClassVersionInfo cvi = new ClassVersionInfo(classname, cl);
                log.fine(cvi.toString());
                if (cvi.getSerialVersion() != 0) {
                    ClassVersionInfo prevCVI = (ClassVersionInfo) classVersionMap.put(classname, cvi);
                    if (prevCVI != null) {
                        if (prevCVI.getSerialVersion() != cvi.getSerialVersion()) {
                            log.severe("Found inconsistent classes, " + prevCVI + " != " + cvi + ", jar: "
                                    + jarName);
                        }
                    }
                    if (cvi.getHasExplicitSerialVersionUID() == false) {
                        log.warning("No explicit serialVersionUID: " + cvi);
                    }
                }
            } catch (OutOfMemoryError e) {
                log.log(Level.SEVERE, "Check the MaxPermSize", e);
            } catch (Throwable e) {
                log.log(Level.FINE, "While loading: " + name, e);
            }
        }
    }
    jf.close();
}

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From source file:org.eclipse.licensing.eclipse_licensing_plugin.InjectLicensingMojo.java

private void extractLicensingBaseFiles() throws IOException {
    JarFile jar = new JarFile(getLicensingBasePlugin());
    Enumeration<JarEntry> entries = jar.entries();
    while (entries.hasMoreElements()) {
        JarEntry entry = entries.nextElement();
        String entryName = entry.getName();
        if (entryName.startsWith("org")) {
            File file = new File(classesDirectory, entryName);
            if (entry.isDirectory()) {
                file.mkdir();/*from  w w w.  ja v  a 2s.c  o  m*/
            } else {
                InputStream is = jar.getInputStream(entry);
                FileOutputStream fos = new FileOutputStream(file);
                while (is.available() > 0) {
                    fos.write(is.read());
                }
                fos.close();
                is.close();
            }
        }
    }
    jar.close();
}

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From source file:com.netflix.nicobar.core.archive.JarScriptArchive.java

protected JarScriptArchive(ScriptModuleSpec moduleSpec, Path jarPath, String moduleSpecEntry, long createTime)
        throws IOException {
    this.createTime = createTime;
    this.moduleSpec = Objects.requireNonNull(moduleSpec, "moduleSpec");
    Objects.requireNonNull(jarPath, "jarFile");
    if (!jarPath.isAbsolute())
        throw new IllegalArgumentException("jarPath must be absolute.");

    // initialize the index
    JarFile jarFile = new JarFile(jarPath.toFile());
    Set<String> indexBuilder;
    try {//from  w ww.j  a v a2  s  .c o m
        Enumeration<JarEntry> jarEntries = jarFile.entries();
        indexBuilder = new HashSet<String>();
        while (jarEntries.hasMoreElements()) {
            JarEntry jarEntry = jarEntries.nextElement();
            // Skip adding moduleSpec to archive entries
            if (jarEntry.getName().equals(moduleSpecEntry)) {
                continue;
            }

            if (!jarEntry.isDirectory()) {
                indexBuilder.add(jarEntry.getName());
            }
        }
    } finally {
        jarFile.close();
    }

    entryNames = Collections.unmodifiableSet(indexBuilder);

    rootUrl = jarPath.toUri().toURL();
}

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From source file:com.wavemaker.tools.util.CFClassLoader.java

@Override
protected Class<?> findClass(String name) throws ClassNotFoundException {

    if (this.resources == null) {
        throw new ClassNotFoundException("invalid search root: " + this.resources);
    } else if (name == null) {
        throw new ClassNotFoundException(MessageResource.NULL_CLASS.getMessage());
    }/*  w w w . j  a va 2 s  .  c om*/

    String classNamePath = name.replace('.', '/') + ".class";

    List<Resource> files = new ArrayList<Resource>();
    for (int i = 0; i < this.resources.length; i++) {
        files.addAll(this.fileSystem.listAllChildren(this.resources[i], null));
    }

    byte[] fileBytes = null;
    try {
        InputStream is = null;
        JarFile jarFile = null;

        for (Resource entry : files) {
            String resourcePath = getPath(entry);
            int len1 = resourcePath.length();
            int len2 = classNamePath.length();
            if (len1 > len2) {
                if (resourcePath.substring(len1 - len2, len1).equals(classNamePath)) {
                    is = entry.getInputStream();
                    break;
                }
            }
        }

        if (is != null) {
            try {
                fileBytes = IOUtils.toByteArray(is);
                is.close();
            } finally {
                if (jarFile != null) {
                    jarFile.close();
                }
            }
        }
    } catch (IOException e) {
        throw new ClassNotFoundException(e.getMessage(), e);
    }

    if (name.contains(".")) {
        String packageName = name.substring(0, name.lastIndexOf('.'));
        if (getPackage(packageName) == null) {
            definePackage(packageName, "", "", "", "", "", "", null);
        }
    }

    Class<?> ret;
    try {
        if (fileBytes == null) {
            ret = ClassLoaderUtils.loadClass(name, this.parentClassLoader);
        } else {
            ret = defineClass(name, fileBytes, 0, fileBytes.length);
        }
    } catch (WMRuntimeException ex) {
        ret = null;
    }

    if (ret == null) {
        throw new ClassNotFoundException(
                "Couldn't find class " + name + " in expected classpath: " + this.resources);
    }

    return ret;
}

---

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