Example usage for java.util Collection iterator

Introduction

In this page you can find the example usage for java.util Collection iterator.

Prototype

Iterator<E> iterator();

Source Link

Document

Returns an iterator over the elements in this collection.

Usage

From source file:Main.java

public static <E extends Comparable<E>> E getSmallest(final Collection<? extends E> c) {
    if (c.isEmpty()) {
        throw new NoSuchElementException();
    }/*from  w  w w.j  a  v a 2  s .  c om*/

    if ((c instanceof List) && (c instanceof RandomAccess)) {
        return getSmallest((List<? extends E>) c);
    }

    final Iterator<? extends E> iterator = c.iterator();
    E result = iterator.next();
    E element;

    while (iterator.hasNext()) {
        element = iterator.next();
        if (element.compareTo(result) < 0) {
            result = element;
        }
    }

    return result;
}

From source file:Main.java

public static <E extends Comparable<E>> E getGreatest(final Collection<? extends E> c) {
    if (c.isEmpty()) {
        throw new NoSuchElementException();
    }/*from  ww  w.j  a  v  a 2  s .  co  m*/

    if ((c instanceof List) && (c instanceof RandomAccess)) {
        return getGreatest((List<? extends E>) c);
    }

    final Iterator<? extends E> iterator = c.iterator();
    E result = iterator.next();
    E element;

    while (iterator.hasNext()) {
        element = iterator.next();
        if (element.compareTo(result) > 0) {
            result = element;
        }
    }

    return result;
}

From source file:com.gargoylesoftware.htmlunit.util.Cookie.java

/**
 * Converts the specified collection of cookies into an collection of HttpClient cookies.
 * @param cookies the cookies to be converted
 * @return the specified cookies, as HttpClient cookies
 *//*w  w  w . j  a  v  a 2  s  .c o  m*/
public static List<org.apache.http.cookie.Cookie> toHttpClient(final Collection<Cookie> cookies) {
    final ArrayList<org.apache.http.cookie.Cookie> array = new ArrayList<>(cookies.size());
    final Iterator<Cookie> it = cookies.iterator();
    while (it.hasNext()) {
        array.add(it.next().toHttpClient());
    }
    return array;
}

From source file:com.doculibre.constellio.plugins.PluginFactory.java

public static boolean isValidPlugin(String name) {
    boolean validPlugin;
    File pluginsDir = getPluginsDir();
    File pluginDir = new File(pluginsDir, name);
    if (!pluginDir.exists() || pluginDir.isFile()) {
        validPlugin = false;/*from   w ww.ja  v  a 2s.  co m*/
    } else {
        Collection<File> pluginJarFiles = FileUtils.listFiles(pluginDir, new String[] { "jar" }, false);
        // Accept only one root dir jar
        File pluginJarFile = pluginJarFiles.isEmpty() ? null : pluginJarFiles.iterator().next();
        if (pluginJarFile != null) {
            validPlugin = true;
        } else {
            validPlugin = false;
        }
    }
    return validPlugin;
}

From source file:com.splout.db.common.SploutConfiguration.java

/**
 * Get the Splout configuration using double configuration: defaults + custom
 *///from   w w w .  ja  v a  2  s. co  m
public static SploutConfiguration get(String rootDir) {
    SploutConfiguration properties = new SploutConfiguration();

    PropertiesConfiguration config = load(rootDir, SPLOUT_PROPERTIES, false);
    if (config != null) {
        properties.addConfiguration(config);
    }
    config = load(rootDir, SPLOUT_PROPERTIES + ".default", true);
    properties.addConfiguration(config);

    // The following lines replaces the default "localhost" by the local IP for convenience:
    String myIp = "localhost";

    try {
        Collection<InetAddress> iNetAddresses = GetIPAddresses.getAllLocalIPs();
        // but only if there is Internet connectivity!
        if (iNetAddresses != null) {
            Iterator<InetAddress> it = iNetAddresses.iterator();
            if (it.hasNext()) {
                InetAddress address = it.next();
                if (address.getHostAddress() != null) {
                    myIp = address.getHostAddress();
                }
            }
        }
    } catch (IOException e) {
        throw new RuntimeException(e);
    }

    if (config.getString(QNodeProperties.HOST) != null
            && config.getString(QNodeProperties.HOST).equals("localhost")) {
        config.setProperty(QNodeProperties.HOST, myIp);
    }

    if (config.getString(DNodeProperties.HOST) != null
            && config.getString(DNodeProperties.HOST).equals("localhost")) {
        config.setProperty(DNodeProperties.HOST, myIp);
    }

    return properties;
}

From source file:edu.stanford.mobisocial.dungbeetle.feed.objects.InviteToSharedAppFeedObj.java

public static JSONObject json(Collection<Contact> contacts, String feedName, String packageName) {
    JSONObject obj = new JSONObject();
    try {// w ww  . j  a va 2 s .c  o  m
        obj.put("packageName", packageName);
        obj.put("sharedFeedName", feedName);
        JSONArray participants = new JSONArray();
        Iterator<Contact> it = contacts.iterator();
        while (it.hasNext()) {
            String localId = "@l" + it.next().id;
            participants.put(participants.length(), localId);
        }
        // Need to add ourself to participants
        participants.put(participants.length(), "@l" + Contact.MY_ID);
        obj.put("participants", participants);
    } catch (JSONException e) {
    }
    return obj;
}

From source file:com.appglu.impl.util.StringUtils.java

public static String collectionToDelimitedString(Collection<?> coll, String delim, String prefix,
        String suffix) {/*from w  ww.  j  a v  a 2 s .c  o m*/
    if (CollectionUtils.isEmpty(coll)) {
        return "";
    }
    StringBuilder sb = new StringBuilder();
    Iterator<?> it = coll.iterator();
    while (it.hasNext()) {
        sb.append(prefix).append(it.next()).append(suffix);
        if (it.hasNext()) {
            sb.append(delim);
        }
    }
    return sb.toString();
}

From source file:com.bigdata.dastor.tools.SSTableExport.java

private static String serializeColumns(Collection<IColumn> cols, AbstractType comp) {
    StringBuilder json = new StringBuilder("[");

    Iterator<IColumn> iter = cols.iterator();
    while (iter.hasNext()) {
        json.append("[");
        IColumn column = iter.next();//  w w w . j  a v a2  s.  co m
        json.append(quote(bytesToHex(column.name())));
        json.append(", ");
        json.append(quote(bytesToHex(column.value())));
        json.append(", ");
        json.append(column.timestamp());
        json.append(", ");
        json.append(column.isMarkedForDelete());
        json.append("]");
        if (iter.hasNext())
            json.append(", ");
    }

    json.append("]");

    return json.toString();
}

From source file:Main.java

public static <E> E getSmallest(final Comparator<? super E> comparator, final Collection<? extends E> c) {
    if (c.isEmpty()) {
        throw new NoSuchElementException();
    }//from ww w. j  ava2 s .  c o  m

    if ((c instanceof List) && (c instanceof RandomAccess)) {
        return getSmallest(comparator, (List<? extends E>) c);
    }

    final Iterator<? extends E> iterator = c.iterator();
    E result = iterator.next();
    E element;

    while (iterator.hasNext()) {
        element = iterator.next();
        if (comparator.compare(element, result) < 0) {
            result = element;
        }
    }

    return result;
}

From source file:Main.java

public static <E> E getGreatest(final Comparator<? super E> comparator, final Collection<? extends E> c) {
    if (c.isEmpty()) {
        throw new NoSuchElementException();
    }/*  w  w w. ja v a  2 s .  c o  m*/

    if ((c instanceof List) && (c instanceof RandomAccess)) {
        return getGreatest(comparator, (List<? extends E>) c);
    }

    final Iterator<? extends E> iterator = c.iterator();
    E result = iterator.next();
    E element;

    while (iterator.hasNext()) {
        element = iterator.next();
        if (comparator.compare(element, result) > 0) {
            result = element;
        }
    }

    return result;
}