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

public static Map<String, String> takeFromSetMap(final Map<String, Set<String>> pMap, final String glue) {
    final Map<String, String> resMap = new HashMap<String, String>(100);
    final Iterator<String> iter = pMap.keySet().iterator();
    String key;//from w  ww  .j av  a2  s  . c o  m
    while (iter.hasNext()) {
        key = iter.next();
        resMap.put(key, implode(pMap.get(key), glue));
    }
    return resMap;
}

From source file:Main.java

public static <KeyT, ValueT> boolean mapsEquals(Map<KeyT, ValueT> map1, Map<KeyT, ValueT> map2) {
    if (map1 == null) {
        return map2 == null || map2.isEmpty();
    }//from  w  w w .  jav a 2  s.  c  o  m
    if (map1.size() != map2.size() || !map1.keySet().containsAll(map2.keySet())) {
        return false;
    }
    for (KeyT key : map1.keySet()) {
        final ValueT value1 = map1.get(key);
        final ValueT value2 = map2.get(key);
        if (!equals(value1, value2)) {
            return false;
        }
    }
    return true;
}

From source file:Main.java

/**
 * Build a List from the entry set of a map.
 * //from   www  .  j  ava2  s  . c  o  m
 *  <p>
 * NOTE: This should not be necessary but there are bugs
 * when you iterate using map.entrySet().iterator().
 * </p>
 * 
 * @param map the map to use as the source
 * @param sortedByValue whether or not to sort the values
 * of the created list
 * @return a list containing all values of the given
 * map
 */
public static List mapToEntryList(Map map, boolean sortedByValue) {
    List retList = new ArrayList();
    if (map.isEmpty()) {
        return Collections.EMPTY_LIST;
    }
    Iterator it = map.keySet().iterator();
    while (it.hasNext()) {
        Object key = it.next();
        Object obj = map.get(key);
        retList.add(obj);
    }

    // Sort
    if (sortedByValue)
        Collections.sort(retList);
    return retList;
}

From source file:Main.java

public static boolean getProperty(String filePath, String fileName, Map<String, String> propertyMap) {
    try {/* ww w . j  av a 2  s  .  c om*/
        Properties p = loadPropertyInstance(filePath, fileName);
        for (String name : propertyMap.keySet()) {
            propertyMap.put(name, p.getProperty(name, propertyMap.get(name)));
        }
        return true;
    } catch (Exception e) {
        e.printStackTrace();
        return false;
    }
}

From source file:Main.java

public static void checkFutures(Map<? extends Object, Future<Void>> futures, int maxSize)
        throws InterruptedException, ExecutionException {
    while (futures.size() > maxSize) {
        for (Iterator<? extends Object> i = futures.keySet().iterator(); i.hasNext();) {
            Object key = i.next();
            futures.get(key).get();//from   w  w w .  ja  va 2 s.c o  m
            i.remove();
        }
    }
}

From source file:Main.java

public static String encodeUrl(Map<String, String> param) {
    if (param == null) {
        return "";
    }/*from ww  w . j a va 2  s .  c om*/

    StringBuilder sb = new StringBuilder();

    Set<String> keys = param.keySet();
    boolean first = true;

    for (String key : keys) {
        String value = param.get(key);
        //pain...EditMyProfileDao params' values can be empty
        if (!TextUtils.isEmpty(value) || key.equals("description") || key.equals("url")) {
            if (first) {
                first = false;
            } else {
                sb.append("&");
            }
            try {
                sb.append(URLEncoder.encode(key, "UTF-8")).append("=")
                        .append(URLEncoder.encode(param.get(key), "UTF-8"));
            } catch (UnsupportedEncodingException e) {

            }
        }

    }

    return sb.toString();
}

From source file:Main.java

public static String dump(Map in) {
    if (in == null)
        return "null";
    StringBuilder sb = new StringBuilder("{");
    for (Iterator it = in.keySet().iterator(); it.hasNext();) {
        String key = (String) it.next();
        sb.append(key).append(":").append(in.get(key));
        if (it.hasNext())
            sb.append(", ");
    }/*from w  ww. jav  a2  s .c  om*/
    sb.append("}");
    return sb.toString();
}

From source file:com.vk.sdk.util.VKJsonHelper.java

/**
 * Converts object to JSON object, if possible
 *
 * @param object object to serialize to json
 * @return Completed json object/*  ww  w  . ja v  a 2s. c  om*/
 * @throws JSONException
 */

public static Object toJSON(Object object) throws JSONException {
    if (object instanceof Map) {
        JSONObject json = new JSONObject();
        Map map = (Map) object;
        for (Object key : map.keySet()) {
            json.put(key.toString(), toJSON(map.get(key)));
        }
        return json;
    } else if (object instanceof Iterable) {
        JSONArray json = new JSONArray();
        for (Object value : ((Iterable) object)) {
            json.put(value);
        }
        return json;
    } else {
        return object;
    }
}

From source file:de.tudarmstadt.ukp.experiments.argumentation.comments.pipeline.ExtendedMalletTopicModelEstimator.java

/**
 * Loads serialized vocabulary ({@code HashMap<String, Integer>}) from file
 *
 * @return vocabulary entries (key set)/*from  ww  w.j a v a2 s. com*/
 * @throws IOException
 * @throws ClassNotFoundException
 */
@SuppressWarnings("unchecked")
public static Set<String> readVocabulary(File vocabularyFile) throws IOException, ClassNotFoundException {
    ObjectInputStream ois = new ObjectInputStream(new FileInputStream(vocabularyFile));
    Map<String, Integer> map = (Map<String, Integer>) ois.readObject();

    IOUtils.closeQuietly(ois);

    return map.keySet();
}

From source file:Main.java

public static String encodeParam(Map<String, String> params) {
    if (params == null)
        return "";

    StringBuilder sb = new StringBuilder();

    for (String key : params.keySet()) {
        Object val = params.get(key);
        if (sb.length() != 0)
            sb.append("&");

        if (val instanceof Long[]) {
            Long[] longval = (Long[]) val;

            try {
                for (int i = 0; i < longval.length; i++) {
                    String valStr = (val == null) ? "" : URLEncoder.encode(longval[i].toString(), "utf-8");

                    if (i != longval.length - 1)
                        sb.append(key + "=" + valStr + "&");
                    else
                        sb.append(key + "=" + valStr);
                }//from  www .  ja v a  2  s .  com

            } catch (UnsupportedEncodingException e) {
                e.printStackTrace();
            }
        } else {
            try {
                String valStr = (val == null) ? "" : URLEncoder.encode(val.toString(), "utf-8");
                sb.append(key + "=" + valStr);
            } catch (UnsupportedEncodingException e) {
                e.printStackTrace();
            }
        }

    }
    return sb.toString();
}