Example usage for java.util Map get

Introduction

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

Prototype

V get(Object key);

Source Link

Document

Returns the value to which the specified key is mapped, or null if this map contains no mapping for the key.

Usage

From source file:Main.java

public static <K> Map<K, Integer> add(Map<K, Integer> map, K k, int add) {
    Integer value = map.get(k);
    if (value == null)
        value = 0;/*from  www  .  j a  va2  s.co m*/
    value += add;
    map.put(k, value);
    return map;
}

From source file:nu.yona.server.batch.quartz.jobs.PinResetConfirmationCodeSenderQuartzJob.java

private static UUID getUserId(Map<String, Object> parameterMap) {
    return UUID.fromString((String) parameterMap.get(USER_ID_KEY));
}

From source file:Main.java

@SuppressWarnings({ "rawtypes" })
private static final int getFreq(final Object obj, final Map freqMap) {
    final Integer count = (Integer) freqMap.get(obj);
    if (count != null) {
        return count.intValue();
    }/* w w w  .ja v  a2s.com*/
    return 0;
}

From source file:Main.java

public static <K> Map<K, Double> add(Map<K, Double> map, K k, double add) {
    Double value = map.get(k);
    if (value == null)
        value = 0.0;//  w  ww .  j av  a  2 s .  co  m
    value += add;
    map.put(k, value);
    return map;
}

From source file:Main.java

public final static <GPOutput> boolean isMapComplete(final Map<Integer, GPOutput> map, final int size) {
    for (int i = 0; i < size; i++) {
        if (map.get(Integer.valueOf(i)) == null) {
            return false;
        }//from   ww w.j  a v  a  2 s  .  c  om
    }
    return true;
}

From source file:Main.java

public static <V> void appendMaps(Map<Integer, V> A, Map<Integer, V> B) {
    int index = A.size();
    for (int i : B.keySet()) {
        A.put(index, B.get(i));
        index++;//from  w w  w  .j  a va 2 s.c o  m
    }
}

From source file:models.daos.UserDao.java

public static ObjectNode getWatchers(String datasetName) {
    List<String> watchUsers = new ArrayList<String>();
    if (StringUtils.isNotBlank(datasetName)) {
        Map<String, Object> params = new HashMap<>();
        params.put("name", datasetName);
        List<Map<String, Object>> rows = null;
        rows = JdbcUtil.wherehowsNamedJdbcTemplate.queryForList(GET_USERS_WATCHED_DATASET, params);
        for (Map row : rows) {
            String userName = (String) row.get("username");
            watchUsers.add(userName);// w  w w.  ja v a2s. co  m
        }
    }
    ObjectNode result = Json.newObject();
    result.put("count", watchUsers.size());
    result.set("users", Json.toJson(watchUsers));
    return result;
}

From source file:Main.java

public static Object get(Object key) {
    @SuppressWarnings("rawtypes")
    Map m = (Map) ctx.get();
    if (m != null) {
        return m.get(key);
    }/*  w  w  w . j a v  a2 s  .c o m*/
    return null;
}

From source file:Main.java

public static String getSingleOptionalParameter(Map<String, String[]> requestParameters, String parameterName) {
    String[] values = requestParameters.get(parameterName);
    if (values == null || values.length == 0) {
        return null;
    } else if (values.length > 1) {
        throw new IllegalArgumentException(
                "Expected just one request parameter named " + parameterName + " but got " + values.length);
    } else {/* w  ww .  ja v a2 s .  com*/
        return values[0];
    }
}

From source file:Main.java

public static <K, V> V getValue(Map<K, V> map, K key) {
    if (map == null) {
        return null;
    }/*w w  w.j a v a 2  s.  com*/
    return map.get(key);
}