Examples with HashSet java.util.HashSet used on opensource projects

Example 1 with HashSet

use of java.util.HashSet in project jetty.project by eclipse.

the class BalancerServlet method getBalancerNames.

private Set<String> getBalancerNames() throws ServletException {
    Set<String> names = new HashSet<>();
    for (String initParameterName : Collections.list(getServletConfig().getInitParameterNames())) {
        if (!initParameterName.startsWith(BALANCER_MEMBER_PREFIX))
            continue;
        int endOfNameIndex = initParameterName.lastIndexOf(".");
        if (endOfNameIndex <= BALANCER_MEMBER_PREFIX.length())
            throw new UnavailableException(initParameterName + " parameter does not provide a balancer member name");
        names.add(initParameterName.substring(BALANCER_MEMBER_PREFIX.length(), endOfNameIndex));
    }
    return names;
}

Example 2 with HashSet

use of java.util.HashSet in project jetty.project by eclipse.

the class JarResourceTest method testJarFile.

@Test
public void testJarFile() throws Exception {
    String s = "jar:" + testResURI + "TestData/test.zip!/subdir/";
    Resource r = Resource.newResource(s);
    Set<String> entries = new HashSet<>(Arrays.asList(r.list()));
    assertEquals(3, entries.size());
    assertTrue(entries.contains("alphabet"));
    assertTrue(entries.contains("numbers"));
    assertTrue(entries.contains("subsubdir/"));
    File extract = File.createTempFile("extract", null);
    if (extract.exists())
        extract.delete();
    extract.mkdir();
    extract.deleteOnExit();
    r.copyTo(extract);
    Resource e = Resource.newResource(extract.getAbsolutePath());
    entries = new HashSet<>(Arrays.asList(e.list()));
    assertEquals(3, entries.size());
    assertTrue(entries.contains("alphabet"));
    assertTrue(entries.contains("numbers"));
    assertTrue(entries.contains("subsubdir/"));
    IO.delete(extract);
    s = "jar:" + testResURI + "TestData/test.zip!/subdir/subsubdir/";
    r = Resource.newResource(s);
    entries = new HashSet<>(Arrays.asList(r.list()));
    assertEquals(2, entries.size());
    assertTrue(entries.contains("alphabet"));
    assertTrue(entries.contains("numbers"));
    extract = File.createTempFile("extract", null);
    if (extract.exists())
        extract.delete();
    extract.mkdir();
    extract.deleteOnExit();
    r.copyTo(extract);
    e = Resource.newResource(extract.getAbsolutePath());
    entries = new HashSet<>(Arrays.asList(e.list()));
    assertEquals(2, entries.size());
    assertTrue(entries.contains("alphabet"));
    assertTrue(entries.contains("numbers"));
    IO.delete(extract);
}

Example 3 with HashSet

use of java.util.HashSet in project jetty.project by eclipse.

the class MetaInfConfiguration method scanForResources.

/**
     * Scan for META-INF/resources dir in the given jar.
     * 
     * @param context the context for the scan
     * @param target the target resource to scan for
     * @param cache the resource cache
     * @throws Exception if unable to scan for resources
     */
public void scanForResources(WebAppContext context, Resource target, ConcurrentHashMap<Resource, Resource> cache) throws Exception {
    Resource resourcesDir = null;
    if (cache != null && cache.containsKey(target)) {
        resourcesDir = cache.get(target);
        if (resourcesDir == EmptyResource.INSTANCE) {
            if (LOG.isDebugEnabled())
                LOG.debug(target + " cached as containing no META-INF/resources");
            return;
        } else if (LOG.isDebugEnabled())
            LOG.debug(target + " META-INF/resources found in cache ");
    } else {
        //not using caches or not in the cache so check for the resources dir
        if (LOG.isDebugEnabled())
            LOG.debug(target + " META-INF/resources checked");
        if (target.isDirectory()) {
            //TODO think  how to handle an unpacked jar file (eg for osgi)
            resourcesDir = target.addPath("/META-INF/resources");
        } else {
            //Resource represents a packed jar
            URI uri = target.getURI();
            resourcesDir = Resource.newResource(uriJarPrefix(uri, "!/META-INF/resources"));
        }
        if (!resourcesDir.exists() || !resourcesDir.isDirectory()) {
            resourcesDir.close();
            resourcesDir = EmptyResource.INSTANCE;
        }
        if (cache != null) {
            Resource old = cache.putIfAbsent(target, resourcesDir);
            if (old != null)
                resourcesDir = old;
            else if (LOG.isDebugEnabled())
                LOG.debug(target + " META-INF/resources cache updated");
        }
        if (resourcesDir == EmptyResource.INSTANCE) {
            return;
        }
    }
    //add it to the meta inf resources for this context
    Set<Resource> dirs = (Set<Resource>) context.getAttribute(METAINF_RESOURCES);
    if (dirs == null) {
        dirs = new HashSet<Resource>();
        context.setAttribute(METAINF_RESOURCES, dirs);
    }
    if (LOG.isDebugEnabled())
        LOG.debug(resourcesDir + " added to context");
    dirs.add(resourcesDir);
}

Example 4 with HashSet

use of java.util.HashSet in project jetty.project by eclipse.

the class MetaInfConfiguration method getTlds.

/**
     * Find all .tld files in all subdirs of the given dir.
     * 
     * @param dir the directory to scan
     * @return the list of tlds found
     * @throws IOException if unable to scan the directory
     */
public Collection<URL> getTlds(File dir) throws IOException {
    if (dir == null || !dir.isDirectory())
        return Collections.emptySet();
    HashSet<URL> tlds = new HashSet<URL>();
    File[] files = dir.listFiles();
    if (files != null) {
        for (File f : files) {
            if (f.isDirectory())
                tlds.addAll(getTlds(f));
            else {
                String name = f.getCanonicalPath();
                if (name.contains("META-INF") && name.endsWith(".tld"))
                    tlds.add(f.toURI().toURL());
            }
        }
    }
    return tlds;
}

Example 5 with HashSet

use of java.util.HashSet in project jetty.project by eclipse.

the class MetaInfConfiguration method getTlds.

/**
     * Find all .tld files in the given jar.
     * 
     * @param uri the uri to jar file
     * @return the collection of tlds as url references  
     * @throws IOException if unable to scan the jar file
     */
public Collection<URL> getTlds(URI uri) throws IOException {
    HashSet<URL> tlds = new HashSet<URL>();
    String jarUri = uriJarPrefix(uri, "!/");
    URL url = new URL(jarUri);
    JarURLConnection jarConn = (JarURLConnection) url.openConnection();
    jarConn.setUseCaches(Resource.getDefaultUseCaches());
    JarFile jarFile = jarConn.getJarFile();
    Enumeration<JarEntry> entries = jarFile.entries();
    while (entries.hasMoreElements()) {
        JarEntry e = entries.nextElement();
        String name = e.getName();
        if (name.startsWith("META-INF") && name.endsWith(".tld")) {
            tlds.add(new URL(jarUri + name));
        }
    }
    if (!Resource.getDefaultUseCaches())
        jarFile.close();
    return tlds;
}