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 Object get(Class c, Map map) {
    if (map.keySet().contains(c)) {
        return map.get(c);
    }//  ww w. java2s .  c  o  m
    for (Iterator i = map.keySet().iterator(); i.hasNext();) {
        Class candidateClass = (Class) i.next();
        if (candidateClass.isAssignableFrom(c)) {
            return map.get(candidateClass);
        }
    }

    return null;
}

From source file:Main.java

/**
 * Determine whether the response contains a basic authentication challenge.
 * @param connection the connection from which the response is extracted.
 * @return <code>true</code> if the response contains an authentication challenge, <code>false</code> otherwise.
 */// w w  w . j a  v  a  2s  . c  o  m
static boolean hasAuthenticationChallenge(HttpURLConnection connection) {
    Map<String, List<String>> headers = connection.getHeaderFields();
    return headers.get(AUTHENTICATION_CHALLENGE_HEADER) != null;
}

From source file:Main.java

private static final void add(Map<Integer, List<String>> mapTo_addTo, int keyNum, String value) {
    if (mapTo_addTo.containsKey(keyNum)) {
        mapTo_addTo.get(keyNum).add(value);
    } else {//w  w  w .j a v  a 2s  .  co  m
        List<String> strList = new ArrayList<String>();
        strList.add(value);
        mapTo_addTo.put(keyNum, strList);
    }
}

From source file:Main.java

public static Map<String, List<String>> classify(List<Map<String, Object>> result, String key, String key2) {
    Map<String, List<String>> map = new HashMap<String, List<String>>();
    List<String> values = null;
    for (Map<String, Object> record : result) {
        String mapKey = String.valueOf(record.get(key));
        String mapkey2 = String.valueOf(record.get(key2));
        if (!map.containsKey(mapKey)) {
            values = new LinkedList<String>();
            values.add(mapkey2);//from  w ww . j  a  v  a 2  s.  com
        } else {
            map.get(mapKey).add(mapkey2);
        }
        map.put(mapKey, values);
    }
    return map;
}

From source file:Main.java

public static <K, V> Collection<Map<K, V>> filterListMap(Collection<Map<K, V>> unfiltered, final K key,
        final V value) {
    return filter(unfiltered, new Predicate<Map<K, V>>() {
        @Override/*from www .  ja  v a2s .com*/
        public boolean apply(Map<K, V> input) {
            return Objects.equal(input.get(key), value);
        }
    });
}

From source file:Main.java

public static void setTextViewEx(Map<String, Object> m, TextView v, String key, String format) {
    String s = toString(m.get(key));
    v.setText(String.format(format, s));
}

From source file:Main.java

@SuppressWarnings({ "rawtypes" })
private static final int getFreq(final Object obj, final Map freqMap) {
    Integer count = (Integer) freqMap.get(obj);
    if (count != null) {
        return count.intValue();
    }//from ww  w .  ja v a2  s . c  om
    return 0;
}

From source file:Main.java

public static String toSafeColumnName(String columnName, Map<String, String> cache) {
    String cachedName = cache.get(columnName);
    if (cachedName == null) {
        String safeColumnName = toSafeColumnName(columnName);
        cache.put(columnName, safeColumnName);
        return safeColumnName;
    } else {//from  ww  w  .  jav a  2  s .  com
        return cachedName;
    }
}

From source file:Main.java

public static <T> List<T> unwrap(Map<String, List<T>> response, String key) {
    if (response != null && response.containsKey(key) && response.get(key) != null) {
        return response.get(key);
    } else {/* w w w.ja v a2 s  .c  o  m*/
        return new ArrayList<>();
    }
}

From source file:Main.java

public static <T> List<T> unwrapResponse(Map<String, List<T>> response, String key) {
    if (response != null && response.containsKey(key) && response.get(key) != null) {
        return response.get(key);
    } else {//from  w w w. j  a  v  a2s .c o  m
        return new ArrayList<>();
    }
}