Examples with JarURLConnection java.net.JarURLConnection used on opensource projects

Example 41 with JarURLConnection

use of java.net.JarURLConnection in project Bytecoder by mirkosertic.

the class URLClassPath method check.

/*
     * Check whether the resource URL should be returned.
     * Throw exception on failure.
     * Called internally within this file.
     */
public static void check(URL url) throws IOException {
    SecurityManager security = System.getSecurityManager();
    if (security != null) {
        URLConnection urlConnection = url.openConnection();
        Permission perm = urlConnection.getPermission();
        if (perm != null) {
            try {
                security.checkPermission(perm);
            } catch (SecurityException se) {
                // security managers
                if ((perm instanceof java.io.FilePermission) && perm.getActions().indexOf("read") != -1) {
                    security.checkRead(perm.getName());
                } else if ((perm instanceof java.net.SocketPermission) && perm.getActions().indexOf("connect") != -1) {
                    URL locUrl = url;
                    if (urlConnection instanceof JarURLConnection) {
                        locUrl = ((JarURLConnection) urlConnection).getJarFileURL();
                    }
                    security.checkConnect(locUrl.getHost(), locUrl.getPort());
                } else {
                    throw se;
                }
            }
        }
    }
}

Example 42 with JarURLConnection

use of java.net.JarURLConnection in project n4js by eclipse.

the class ShippedCodeAccess method getShippedRuntimeCodePath.

/**
 * Returns path for the shipped code from the provided location. If location is plain file returns its absolute path
 * as string. If location is inside jar file, unpacks desired resource to the temporal location and returns path to
 * that location.
 *
 * @param rootName
 *            name of shipped root to be located
 * @return the path pointing to the shipped code
 */
protected static String getShippedRuntimeCodePath(String rootName) {
    try {
        URL resourceUrl = getResource(rootName);
        final URLConnection connection = resourceUrl.openConnection();
        if (connection instanceof JarURLConnection) {
            return recursivelyCopyContent((JarURLConnection) connection, rootName);
        }
        return new File(resourceUrl.toURI()).getCanonicalFile().getAbsolutePath().replace("\\", "\\\\");
    } catch (final Exception e) {
        throw new RuntimeException("Error while getting shipped code path.", e);
    }
}

Example 43 with JarURLConnection

use of java.net.JarURLConnection in project mlib by myshzzx.

the class JarTest1 method t1.

@Test
@Ignore
public void t1() throws IOException {
    final URL url = new URL("jar:file:///L:/javafx-mx.jar!/");
    final JarURLConnection jar = (JarURLConnection) url.openConnection();
    final JarFile jarFile = jar.getJarFile();
    jarFile.stream().forEach(e -> {
        System.out.println(e.getName());
        System.out.println(e.getTime());
    });
}

Example 44 with JarURLConnection

use of java.net.JarURLConnection in project gate-core by GateNLP.

the class Tools method findSubclasses.

/**
 * Finds all subclasses of a given class or interface. It will only search
 * within the loaded packages and not the entire classpath.
 * @param parentClass the class for which subclasses are sought
 * @return a list of {@link Class} objects.
 */
public static List<Class<?>> findSubclasses(Class<?> parentClass) {
    Package[] packages = Package.getPackages();
    List<Class<?>> result = new ArrayList<Class<?>>();
    for (int i = 0; i < packages.length; i++) {
        String packageDir = packages[i].getName();
        // look in the file system
        if (!packageDir.startsWith("/"))
            packageDir = "/" + packageDir;
        packageDir = packageDir.replace('.', Strings.getPathSep().charAt(0));
        URL packageURL = Gate.getClassLoader().getResource(packageDir);
        if (packageURL != null) {
            File directory = Files.fileFromURL(packageURL);
            if (directory.exists()) {
                String[] files = directory.list();
                for (int j = 0; j < files.length; j++) {
                    // we are only interested in .class files
                    if (files[j].endsWith(".class")) {
                        // removes the .class extension
                        String classname = files[j].substring(0, files[j].length() - 6);
                        try {
                            // Try to create an instance of the object
                            Class<?> aClass = Class.forName(packages[i] + "." + classname, true, Gate.getClassLoader());
                            if (parentClass.isAssignableFrom(aClass))
                                result.add(aClass);
                        } catch (ClassNotFoundException cnfex) {
                        }
                    }
                }
            } else {
                // look in jar files
                try {
                    JarURLConnection conn = (JarURLConnection) packageURL.openConnection();
                    String starts = conn.getEntryName();
                    JarFile jFile = conn.getJarFile();
                    Enumeration<JarEntry> e = jFile.entries();
                    while (e.hasMoreElements()) {
                        String entryname = e.nextElement().getName();
                        if (entryname.startsWith(starts) && // not sub dir
                        (entryname.lastIndexOf('/') <= starts.length()) && entryname.endsWith(".class")) {
                            String classname = entryname.substring(0, entryname.length() - 6);
                            if (classname.startsWith("/"))
                                classname = classname.substring(1);
                            classname = classname.replace('/', '.');
                            try {
                                // Try to create an instance of the object
                                Class<?> aClass = Class.forName(packages[i] + "." + classname, true, Gate.getClassLoader());
                                if (parentClass.isAssignableFrom(aClass))
                                    result.add(aClass);
                            } catch (ClassNotFoundException cnfex) {
                            }
                        }
                    }
                } catch (java.io.IOException ioe) {
                }
            }
        }
    }
    return result;
}

Example 45 with JarURLConnection

use of java.net.JarURLConnection in project earth-snow by justlive1.

the class AbstractResourceLoader method findJarMatchPath.

/**
 * 获取资源下匹配的jar中的文件
 *
 * @param resource
 * @param rootUrl
 * @param subPattern
 * @return
 * @throws IOException
 */
protected List<SourceResource> findJarMatchPath(SourceResource resource, URL rootUrl, String subPattern) throws IOException {
    List<SourceResource> all = new LinkedList<>();
    URLConnection con = rootUrl.openConnection();
    JarFile jarFile;
    String jarFileUrl;
    String rootEntryPath;
    if (con instanceof JarURLConnection) {
        JarURLConnection jarCon = (JarURLConnection) con;
        jarFile = jarCon.getJarFile();
        jarFileUrl = jarCon.getJarFileURL().toExternalForm();
        JarEntry jarEntry = jarCon.getJarEntry();
        rootEntryPath = (jarEntry != null ? jarEntry.getName() : "");
    } else {
        String urlFile = rootUrl.getFile();
        int separatorLength = BaseConstants.WAR_URL_SEPARATOR.length();
        int separatorIndex = urlFile.indexOf(BaseConstants.WAR_URL_SEPARATOR);
        if (separatorIndex == -1) {
            separatorIndex = urlFile.indexOf(BaseConstants.JAR_URL_SEPARATOR);
            separatorLength = BaseConstants.JAR_URL_SEPARATOR.length();
        }
        if (separatorIndex != -1) {
            jarFileUrl = urlFile.substring(0, separatorIndex);
            rootEntryPath = urlFile.substring(separatorIndex + separatorLength);
            jarFile = this.getJarFile(jarFileUrl);
        } else {
            jarFile = new JarFile(urlFile);
            jarFileUrl = urlFile;
            rootEntryPath = "";
        }
    }
    try {
        if (log.isDebugEnabled()) {
            log.debug("Looking for matching resources in jar file [" + jarFileUrl + "]");
        }
        if (rootEntryPath.length() > 0 && !rootEntryPath.endsWith(BaseConstants.PATH_SEPARATOR)) {
            rootEntryPath += BaseConstants.PATH_SEPARATOR;
        }
        for (Enumeration<JarEntry> entries = jarFile.entries(); entries.hasMoreElements(); ) {
            JarEntry entry = entries.nextElement();
            String entryPath = entry.getName();
            if (entryPath.startsWith(rootEntryPath)) {
                String relativePath = entryPath.substring(rootEntryPath.length());
                if (matcher.match(subPattern, relativePath)) {
                    all.add(resource.createRelative(relativePath));
                }
            }
        }
    } finally {
        jarFile.close();
    }
    return all;
}