Example usage for java.util Map keySet

Introduction

In this page you can find the example usage for java.util Map keySet.

Prototype

Set<K> keySet();

Source Link

Document

Returns a Set view of the keys contained in this map.

Usage

From source file:Main.java

private static Map canonicalize(Map input) {
    Map retval = new HashMap();
    for (Object key : input.keySet()) {
        retval.put(key, canonicalize(input.get(key)));
    }/*www .  j  ava  2 s  .  c  o  m*/
    return retval;
}

From source file:Main.java

public static Map lowerKeyMap(Map map) {
    Map<String, Object> lowerKeyMap = new HashMap<String, Object>();
    for (Object key : map.keySet()) {
        if (key instanceof String) {
            lowerKeyMap.put(((String) key).toLowerCase(), map.get(key));
        }//from   w  ww .j a  v a  2  s . co  m
    }
    return lowerKeyMap;
}

From source file:Main.java

public static String map2Str(Map<String, String> map) {
    StringBuilder sb = new StringBuilder("");
    Set<String> keys = map.keySet();
    for (String key : keys)
        sb.append(key + ":" + map.get(key) + ", ");

    String s = sb.toString().trim();

    if (!s.endsWith(","))
        return s;
    else// w  w w.j a v a  2s  . co  m
        return s.substring(0, s.lastIndexOf(",") - 1);
}

From source file:Main.java

public static <K> Map<K, Integer> uniomCounterMap(Map<K, Integer> first, Map<K, Integer> second) {
    Map<K, Integer> ret = new HashMap<K, Integer>(first);
    for (K key : second.keySet()) {
        if (ret.containsKey(key)) {
            ret.put(key, ret.get(key) + second.get(key));
        } else {//from  w ww  .ja v  a  2 s . c  o  m
            ret.put(key, second.get(key));
        }
    }
    return ret;
}

From source file:Main.java

/**
 * Used to convert dasein metadata map into Jade metadata xml
 *//*from   ww  w. j  a v  a2 s  . c o m*/
public static String convertMapToXML(Map<String, String> metaData) {

    String toReturn = "";

    for (String key : metaData.keySet()) {
        toReturn += String.format("<%s>%s</%s>", key, metaData.get(key), key);
    }

    return toReturn;
}

From source file:Main.java

public static String getReqPama(Map<String, String> params) {
    StringBuffer sBuffer = new StringBuffer();
    Iterator<?> iterator = params.keySet().iterator();
    while (iterator.hasNext()) {
        String key = (String) iterator.next();
        sBuffer.append(key + "=" + params.get(key) + "&");
    }/* ww  w.  j  a v a  2  s  . c  o  m*/
    String reqString = sBuffer.toString();
    return reqString.substring(0, reqString.length() - 1);
}

From source file:Main.java

public static void dumpThreads() {
    final Map<Thread, StackTraceElement[]> threads = Thread.getAllStackTraces();
    for (Thread thread : threads.keySet())
        System.out.println((thread.isDaemon() ? "DAEMON  " : "        ") + thread.getName());

    // final ThreadInfo[] threads = ManagementFactory.getThreadMXBean().dumpAllThreads(false, false);
    //        for(ThreadInfo thread : threads) {
    //            System.out.println(thread.getThreadName() + ": ");
    //        }/*from  ww  w  .  jav a2 s .  c  om*/
}

From source file:Main.java

public static void dumpAllThreadStacks() {
    System.out.println("stack trace");

    Map<Thread, StackTraceElement[]> map = Thread.getAllStackTraces();
    for (Thread t : map.keySet()) {
        StackTraceElement[] elements = map.get(t);

        System.out.println(t);//from w  ww  . ja  va 2 s  .  c  o m
        System.out.println("isDaemon : " + t.isDaemon() + ", isAlive : " + t.isAlive() + ", isInterrupted : "
                + t.isInterrupted());

        for (StackTraceElement e : elements) {
            System.out.println("\t" + e);
        }
        System.out.println("");
    }
}

From source file:Main.java

/**
 * <p>/*from w  w  w.j a va 2 s.c  om*/
 * This method returns the <tt>Iterator</tt> of a passed map instance
 * </p>
 * 
 * @param mapObj
 *       A map instance whose iterator needs to be returned
 * 
 * @return
 *       an instance of <tt>Iterator</tt>
 */
public static Iterator<? extends Object> getIteratorForMap(Map<? extends Object, ? extends Object> mapObj) {
    Set<? extends Object> keySet = mapObj.keySet();

    return keySet.iterator();
}

From source file:Main.java

public static Bundle mapToBundle(Map<String, String> map) {
    Bundle bundle = new Bundle();
    if (map != null) {
        for (String key : map.keySet()) {
            bundle.putString(key, map.get(key));
        }/*from w  w w .  j  a  v a2  s . co  m*/
    }
    return bundle;
}