Example usage for java.util Map size

Introduction

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

Prototype

int size();

Source Link

Document

Returns the number of key-value mappings in this map.

Usage

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  va2  s  .  co  m*/
            i.remove();
        }
    }
}

From source file:ee.ria.xroad.common.message.SoapMessageEncoder.java

private static String[] convertHeaders(Map<String, String> headers) {
    String[] ret = new String[headers.size()];
    int idx = 0;/*from   w  w w. j ava  2s.  c o  m*/
    for (Map.Entry<String, String> entry : headers.entrySet()) {
        ret[idx++] = entry.getKey() + ": " + entry.getValue();
    }

    return ret;
}

From source file:Main.java

public static void writeStringStringMap(Map<String, String> map, OutputStream os) throws IOException {
    if (map != null) {
        writeInt(os, map.size());
        for (Map.Entry<String, String> entry : map.entrySet()) {
            writeString(os, entry.getKey());
            writeString(os, entry.getValue());
        }/*from   ww w.  j  a  v a  2  s. c  o m*/
    } else {
        writeInt(os, 0);
    }
}

From source file:com.aliyun.openservices.odps.console.commands.logview.LogViewBaseAction.java

protected static String deduceTaskName(Instance inst) throws ODPSConsoleException, OdpsException {
    Map<String, TaskStatus> ss = inst.getTaskStatus();
    if (ss.size() == 1) {
        for (String key : ss.keySet()) {
            return key;
        }/*w w  w.j a v a2  s  . c o m*/
    } else {
        throw new ODPSConsoleException(
                "Please specify one of these tasks with option '-t': " + StringUtils.join(ss.keySet(), ','));
    }
    return null;
}

From source file:Main.java

private static List<String> filterParamNamesWithObjectValue(Map<String, Object> paramValueMap,
        List<String> ignoreParamNameList) {
    List<String> filteredParamNames = new ArrayList<>(paramValueMap.size());
    filteredParamNames.addAll(paramValueMap.keySet());
    if (ignoreParamNameList != null && ignoreParamNameList.size() > 0) {
        for (String ignoreParamName : ignoreParamNameList) {
            filteredParamNames.remove(ignoreParamName);
        }//w  w w. j a v  a 2s .  c  om
    }
    return filteredParamNames;
}

From source file:Main.java

private static List<Activity> getAllActivitiesHack() throws ClassNotFoundException, NoSuchMethodException,
        NoSuchFieldException, IllegalAccessException, InvocationTargetException {
    Class activityThreadClass = Class.forName("android.app.ActivityThread");
    Object activityThread = activityThreadClass.getMethod("currentActivityThread").invoke(null);
    Field activitiesField = activityThreadClass.getDeclaredField("mActivities");
    activitiesField.setAccessible(true);
    Map activities = (Map) activitiesField.get(activityThread);
    List<Activity> activitiesList = new ArrayList<Activity>(activities.size());

    for (Object activityRecord : activities.values()) {
        Class activityRecordClass = activityRecord.getClass();
        Field activityField = activityRecordClass.getDeclaredField("activity");
        activityField.setAccessible(true);
        Activity activity = (Activity) activityField.get(activityRecord);
        activitiesList.add(activity);/* w w w  .  java 2  s  .co m*/
    }

    return activitiesList;
}

From source file:Main.java

private final static String sortedParams(Map<String, String> params) throws UnsupportedEncodingException {
    String vals[] = new String[params.size()];
    int idx = 0;//from w  w  w .java 2  s .c o  m
    for (String key : params.keySet()) {
        vals[idx++] = key;
    }
    Arrays.sort(vals);
    StringBuilder sb = new StringBuilder();
    for (int i = 0; i < vals.length; i++) {
        if (i > 0) {
            sb.append("&");
        }
        sb.append(vals[i]);
        sb.append("=");
        sb.append(encode(params.get(vals[i])));
    }
    return sb.toString();
}

From source file:Main.java

public static Map<String, String> paraFilter(Map<String, String> para) {

    Map<String, String> result = new HashMap<String, String>();

    if (para == null || para.size() <= 0) {
        return result;
    }/*from   w  w w  .j av a 2s. c om*/

    for (String key : para.keySet()) {
        String value = para.get(key);
        if (value == null || value.equals("") || key.equalsIgnoreCase(SIGNATURE)
                || key.equalsIgnoreCase(SIGN_METHOD)) {
            continue;
        }
        result.put(key, value);
    }

    return result;
}

From source file:Maps.java

public static <K, V> Map<K, V> normalize(Map<K, V> map) {
    switch (map.size()) {
    case 0:// w  w w  .j a  va 2 s.c  o m
        return create();
    case 1: {
        if (map.getClass() == SINGLETON_MAP_CLASS) {
            return map;
        }
        K key = map.keySet().iterator().next();
        return create(key, map.get(key));
    }
    default:
        if (map.getClass() == MULTI_MAP_CLASS) {
            return map;
        }
        return new HashMap<K, V>(map);
    }
}

From source file:me.st28.flexseries.flexcore.util.MapUtils.java

/**
 * Retrieves an entry from a map with a given index. Intended for maps that preserve ordering (ex. LinkedHashMap)
 *
 * @param map The map to retrieve the entry from.
 * @param index The index of the entry in the map.
 * @return The entry at the given index in the given map.
 */// w  w w .  j a  v a 2  s.  com
public static <K, V> Entry<K, V> getEntryByIndex(Map<K, V> map, int index) {
    Validate.notNull(map, "Map cannot be null.");
    int mapSize = map.size();

    int curIndex = 0;
    Iterator<Entry<K, V>> iterator = map.entrySet().iterator();
    while (iterator.hasNext() && curIndex < mapSize) {
        if (curIndex++ == index) {
            return iterator.next();
        }
    }
    throw new IndexOutOfBoundsException("Index: " + index + ", Size: " + mapSize);
}