Example usage for java.util Collections unmodifiableList

Introduction

In this page you can find the example usage for java.util Collections unmodifiableList.

Prototype

public static <T> List<T> unmodifiableList(List<? extends T> list)

Source Link

Document

Returns an unmodifiable view of the specified list.

Usage

From source file:Main.java

/**
 * Functions as per {@link Collections#unmodifiableList(List)} with the exception that if the
 * given list is null, this method will return an unmodifiable empty list as per
 * {@link Collections#emptyList()}.// www .j  ava 2  s .  com
 * 
 * @param list the list for which an unmodifiable view is to be returned
 * @return an unmodifiable view of the specified list, or an unmodifiable empty list if the
 *         given list is null
 */
public static <T> List<T> unmodifiableListNullSafe(List<? extends T> list) {
    if (list == null) {
        return Collections.emptyList();
    }
    return Collections.unmodifiableList(list);
}

From source file:org.apache.nutch.storage.local.CustomDaoFactory.java

public List<Dao<?, ?>> getCreatedDaos() {
    synchronized (registredDaos) {
        return Collections.unmodifiableList(registredDaos);
    }
}

From source file:net.dv8tion.jda.core.utils.cache.impl.AbstractCacheView.java

@Override
public List<T> asList() {
    ArrayList<T> list = new ArrayList<>(elements.size());
    elements.forEachValue(list::add);//  ww  w .  ja v  a  2  s  .co  m
    return Collections.unmodifiableList(list);
}

From source file:com.imhasan.beingjava.test.ImageController.java

private List<File> getFilesFromDirectory(String directory) {
    File folder = new File(directory);
    File[] listOfFiles = folder.listFiles();
    List<File> files = new ArrayList<>();
    for (int i = 0; i < listOfFiles.length; i++) {
        if (listOfFiles[i].isFile()) {
            if (validateFile(listOfFiles[i].getName())) {
                files.add(listOfFiles[i]);
            }//from  www. j  a va  2  s. c  o m
        }
    }
    return Collections.unmodifiableList(files);
}

From source file:de.th.wildau.dsc.sne.webserver.WebServer.java

/**
 * Web server / main constructor.//from w  ww  . j a  va2 s. c om
 * 
 * @param startArguments
 */
public WebServer(String[] startArguments) {

    loadConfiguration(startArguments);
    Log.debug(Configuration.getInstance().toString());

    Log.debug("Information about the OS: " + System.getProperty("os.name") + " - "
            + System.getProperty("os.version") + " - " + System.getProperty("os.arch"));

    if (Configuration.getConfig().getProxyHost() != null) {
        Log.debug("setup proxy configuration");
        System.setProperty("http.proxyHost", Configuration.getConfig().getProxyHost());
        System.setProperty("http.proxyPort", String.valueOf(Configuration.getConfig().getProxyPort()));
    }

    Log.debug("find supported scripting languages");
    supportedScriptLanguages = Collections.unmodifiableList(ScriptExecutor.getSupportedScriptLanguages());
    Log.debug("Supported Script Languages " + Arrays.toString(supportedScriptLanguages.toArray()));

    Log.info("instantiating web server");
    try {
        ServerSocket server = new ServerSocket(Configuration.getConfig().getServerPort());
        Log.debug("bound port " + Configuration.getConfig().getServerPort());

        int corePoolSize = Runtime.getRuntime().availableProcessors();
        int maxPoolSize = (2 * corePoolSize) + 1;
        Log.debug("core/max pool size: " + corePoolSize + "/" + maxPoolSize);
        LinkedBlockingQueue<Runnable> workerQueue = new LinkedBlockingQueue<Runnable>();
        long keepAliveTime = 30;
        /*
         * keepAliveTime - If the pool currently has more than corePoolSize
         * threads, excess threads will be terminated if they have been idle
         * for more than the keepAliveTime.
         */

        ThreadPoolExecutor threadPool = new ThreadPoolExecutor(corePoolSize, maxPoolSize, keepAliveTime,
                TimeUnit.SECONDS, workerQueue);
        threadPool.prestartAllCoreThreads();

        Socket socket = null;
        while (true) {

            try {
                socket = server.accept();
                Log.info(socket.getInetAddress().getHostName() + " client request");
                threadPool.execute(new HttpHandler(socket));
                Log.debug("current threads: " + threadPool.getActiveCount());
            } catch (final IOException ex) {
                Log.error("Connection failed!", ex);
            } catch (final RejectedExecutionException ex) {
                // XXX [sne] RejectedExecutionException
                // http://stackoverflow.com/questions/1519725/why-does-executors-newcachedthreadpool-throw-java-util-concurrent-rejectedexecut
                // http://www.javamex.com/tutorials/threads/thread_pools_queues.shtml
                // http://stackoverflow.com/questions/2001086/how-to-make-threadpoolexecutors-submit-method-block-if-it-is-saturated
                Log.error("RejectedExecutionException", ex);
                socket.close();
            } catch (final Exception ex) {
                Log.fatal("Unknown error!", ex);
            }
        }
    } catch (final IOException ex) {
        Log.fatal("Can not start the server!", ex);
        System.err.println("Can not start the server! " + ex.getMessage());
    } catch (final Exception ex) {
        Log.fatal("Unknown error!", ex);
    }
}

From source file:net.modelbased.sensapp.acceptance.driver.data.SensorData.java

public List<Event> getEvents() {
    return Collections.unmodifiableList(events);
}

From source file:org.jasig.cas.validation.ImmutableAssertionImpl.java

public List<Authentication> getChainedAuthentications() {
    return Collections.unmodifiableList(this.principals);
}

From source file:com.htmlhifive.pitalium.core.selenium.PtlCapabilities.java

/**
 * Capability????/*w  ww  .ja v  a  2  s.c  o m*/
 * 
 * @return Capability?
 */
public static List<PtlCapabilities[]> readCapabilities() {
    synchronized (PtlCapabilities.class) {
        if (capabilities != null) {
            return capabilities;
        }

        String filePath = PtlTestConfig.getInstance().getEnvironment().getCapabilitiesFilePath();
        List<Map<String, Object>> maps = readCapabilitiesFromFileOrResources(filePath);

        LOG.debug("Capabilities loaded. (size: {})", maps.size());
        LOG.trace("Capabilities: {}", maps);

        List<PtlCapabilities[]> result = new ArrayList<PtlCapabilities[]>(maps.size());
        for (Map<String, Object> map : maps) {
            PtlCapabilities[] array = { new PtlCapabilities(map) };
            result.add(array);
        }

        capabilities = Collections.unmodifiableList(result);
        return capabilities;
    }
}

From source file:org.cloudfoundry.client.lib.archive.ZipApplicationArchive.java

private List<Entry> adaptZipEntries(ZipFile zipFile) {
    List<Entry> entries = new ArrayList<Entry>();
    Enumeration<? extends ZipEntry> zipEntries = zipFile.entries();
    while (zipEntries.hasMoreElements()) {
        entries.add(new EntryAdapter(zipEntries.nextElement()));
    }/*from ww  w .  j a v a  2 s . c  om*/
    return Collections.unmodifiableList(entries);
}

From source file:com.unboundid.scim2.common.messages.PatchRequest.java

/**
 * Create a new Patch Operation Request.
 *
 * @param operations The list of operations to include.
 */// w w w  .  j  ava 2s  .  c  o m
@JsonCreator
public PatchRequest(
        @JsonProperty(value = "Operations", required = true) final List<PatchOperation> operations) {
    this.operations = Collections.unmodifiableList(operations);
}