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

Example 71 with JarURLConnection

use of java.net.JarURLConnection in project tomcat70 by apache.

the class StandardJarScanner method process.

/*
     * Scan a URL for JARs with the optional extensions to look at all files
     * and all directories.
     */
protected void process(JarScannerCallback callback, URL url) throws IOException {
    if (log.isTraceEnabled()) {
        log.trace(sm.getString("jarScan.jarUrlStart", url));
    }
    URLConnection conn = url.openConnection();
    if (conn instanceof JarURLConnection) {
        callback.scan((JarURLConnection) conn);
    } else {
        String urlStr = url.toString();
        if (urlStr.startsWith("file:") || urlStr.startsWith("jndi:") || urlStr.startsWith("http:") || urlStr.startsWith("https:")) {
            if (urlStr.endsWith(Constants.JAR_EXT)) {
                URL jarURL = UriUtil.buildJarUrl(urlStr);
                callback.scan((JarURLConnection) jarURL.openConnection());
            } else {
                File f;
                try {
                    f = new File(url.toURI());
                    if (f.isFile() && scanAllFiles) {
                        // Treat this file as a JAR
                        URL jarURL = UriUtil.buildJarUrl(f);
                        callback.scan((JarURLConnection) jarURL.openConnection());
                    } else if (f.isDirectory() && scanAllDirectories) {
                        File metainf = new File(f.getAbsoluteFile() + File.separator + "META-INF");
                        if (metainf.isDirectory()) {
                            callback.scan(f);
                        }
                    }
                } catch (Throwable t) {
                    ExceptionUtils.handleThrowable(t);
                    // Wrap the exception and re-throw
                    IOException ioe = new IOException();
                    ioe.initCause(t);
                    throw ioe;
                }
            }
        }
    }
}

Example 72 with JarURLConnection

use of java.net.JarURLConnection in project tomcat70 by apache.

the class UrlJar method createJarInputStream.

private NonClosingJarInputStream createJarInputStream() throws IOException {
    JarURLConnection jarConn = (JarURLConnection) url.openConnection();
    URL resourceURL = jarConn.getJarFileURL();
    URLConnection resourceConn = resourceURL.openConnection();
    resourceConn.setUseCaches(false);
    return new NonClosingJarInputStream(resourceConn.getInputStream());
}

Example 73 with JarURLConnection

use of java.net.JarURLConnection in project tomcat70 by apache.

the class BaseDirContext method addResourcesJar.

// ------------------------------------------------------------- Properties
/**
 * Add a resources JAR. The contents of /META-INF/resources/ will be used if
 * a requested resource can not be found in the main context.
 */
public void addResourcesJar(URL url) {
    try {
        JarURLConnection conn = (JarURLConnection) url.openConnection();
        JarFile jarFile = conn.getJarFile();
        ZipEntry entry = jarFile.getEntry("/");
        WARDirContext warDirContext = new WARDirContext(jarFile, new WARDirContext.Entry("/", entry));
        warDirContext.loadEntries();
        altDirContexts.add(warDirContext);
    } catch (IOException ioe) {
        log.warn(sm.getString("resources.addResourcesJarFail", url), ioe);
    }
}

Example 74 with JarURLConnection

use of java.net.JarURLConnection in project elki by elki-project.

the class CheckELKIServices method checkServices.

/**
 * Retrieve all properties and check them.
 *
 * @param update Folder to update service files in
 */
public void checkServices(String update) {
    TreeSet<String> props = new TreeSet<>();
    Enumeration<URL> us;
    try {
        us = getClass().getClassLoader().getResources(ELKIServiceLoader.RESOURCE_PREFIX);
    } catch (IOException e) {
        throw new AbortException("Error enumerating service folders.", e);
    }
    while (us.hasMoreElements()) {
        URL u = us.nextElement();
        try {
            if (("jar".equals(u.getProtocol()))) {
                JarURLConnection con = (JarURLConnection) u.openConnection();
                try (JarFile jar = con.getJarFile()) {
                    Enumeration<JarEntry> entries = jar.entries();
                    while (entries.hasMoreElements()) {
                        String prop = entries.nextElement().getName();
                        if (prop.startsWith(ELKIServiceLoader.RESOURCE_PREFIX)) {
                            props.add(prop.substring(ELKIServiceLoader.RESOURCE_PREFIX.length()));
                        } else if (prop.startsWith(ELKIServiceLoader.FILENAME_PREFIX)) {
                            props.add(prop.substring(ELKIServiceLoader.FILENAME_PREFIX.length()));
                        }
                    }
                }
                continue;
            }
            if ("file".equals(u.getProtocol())) {
                props.addAll(Arrays.asList(new File(u.toURI()).list()));
            }
        } catch (IOException | URISyntaxException e) {
            throw new AbortException("Error enumerating service folders.", e);
        }
    }
    for (String prop : props) {
        if (LOG.isVerbose()) {
            LOG.verbose("Checking property: " + prop);
        }
        checkService(prop, update);
    }
}

Example 75 with JarURLConnection

use of java.net.JarURLConnection in project elki by elki-project.

the class CheckParameterizables method checkParameterizables.

/**
 * Validate all "Parameterizable" objects for parts of the API contract that
 * cannot be specified in Java interfaces (such as constructors, static
 * methods)
 */
public void checkParameterizables() {
    LoggingConfiguration.setVerbose(Level.VERBOSE);
    knownParameterizables = new ArrayList<>();
    try {
        Enumeration<URL> us = getClass().getClassLoader().getResources(ELKIServiceLoader.RESOURCE_PREFIX);
        while (us.hasMoreElements()) {
            URL u = us.nextElement();
            if ("file".equals(u.getProtocol())) {
                for (String prop : new File(u.toURI()).list()) {
                    try {
                        knownParameterizables.add(Class.forName(prop));
                    } catch (ClassNotFoundException e) {
                        LOG.warning("Service file name is not a class name: " + prop);
                        continue;
                    }
                }
            } else if (("jar".equals(u.getProtocol()))) {
                JarURLConnection con = (JarURLConnection) u.openConnection();
                try (JarFile jar = con.getJarFile()) {
                    Enumeration<JarEntry> entries = jar.entries();
                    while (entries.hasMoreElements()) {
                        String prop = entries.nextElement().getName();
                        if (prop.startsWith(ELKIServiceLoader.RESOURCE_PREFIX)) {
                            prop = prop.substring(ELKIServiceLoader.RESOURCE_PREFIX.length());
                        } else if (prop.startsWith(ELKIServiceLoader.FILENAME_PREFIX)) {
                            prop = prop.substring(ELKIServiceLoader.FILENAME_PREFIX.length());
                        } else {
                            continue;
                        }
                        try {
                            knownParameterizables.add(Class.forName(prop));
                        } catch (ClassNotFoundException e) {
                            LOG.warning("Service file name is not a class name: " + prop);
                            continue;
                        }
                    }
                }
            }
        }
    } catch (IOException | URISyntaxException e) {
        throw new AbortException("Error enumerating service folders.", e);
    }
    final String internal = de.lmu.ifi.dbs.elki.utilities.optionhandling.Parameterizer.class.getPackage().getName();
    for (final Class<?> cls : ELKIServiceRegistry.findAllImplementations(Object.class, false, false)) {
        // Classes in the same package are special and don't cause warnings.
        if (cls.getName().startsWith(internal)) {
            continue;
        }
        try {
            State state = State.NO_CONSTRUCTOR;
            state = checkV3Parameterization(cls, state);
            if (state == State.ERROR) {
                continue;
            }
            state = checkDefaultConstructor(cls, state);
            if (state == State.ERROR) {
                continue;
            }
            boolean expectedParameterizer = checkSupertypes(cls);
            if (state == State.NO_CONSTRUCTOR && expectedParameterizer) {
                LOG.verbose(// 
                "Class " + cls.getName() + " implements a parameterizable interface, but doesn't have a public and parameterless constructor!");
            }
            if (state == State.INSTANTIABLE && !expectedParameterizer) {
                LOG.verbose(// 
                "Class " + cls.getName() + " has a parameterizer, but there is no service file for any of its interfaces.");
            }
        } catch (NoClassDefFoundError e) {
            LOG.verbose("Class discovered but not found: " + cls.getName() + " (missing: " + e.getMessage() + ")");
        }
    }
}