Java Utililty Methods ConcurrentMap

List of utility methods to do ConcurrentMap

  1. HOME
  2. Java
  3. C
  4. ConcurrentMap

Description

The list of methods to do ConcurrentMap are organized into topic(s).

Method

voidaddClassMapping(String className, Class clazz)
add Class Mapping 
if (className == null) {
    className = clazz.getName();
mappings.put(className, clazz);
CaddConcurrent(K key, C values, ConcurrentMap map)
If map already has a value associated with the key it adds values to that value, otherwise it will put values to the map. 
C currentValues = map.get(key);
if (currentValues == null) {
    currentValues = map.putIfAbsent(key, values);
    if (currentValues == null) {
        return values;
synchronized (currentValues) {
...
intaddIfAbsent(K key, ConcurrentMap map, Object value)
add If Absent 
for (;;) {
    Object[] newElements, elements = map.get(key);
    if (elements == null && (elements = map.putIfAbsent(key, new Object[] { value })) == null)
        return 0;
    int i, len = i = elements.length;
    while (--i >= 0) {
        if (value.equals(elements[i]))
            return -1;
...
voidclearClassMapping()
clear Class Mapping 
mappings.clear();
addBaseClassMappings();
voidclearDefaultResourceBundles()
Clears the internal list of resource bundles. 
ClassLoader ccl = getCurrentThreadContextClassLoader();
List<String> bundles = new ArrayList<>();
classLoaderMap.put(ccl.hashCode(), bundles);
bundles.add(0, XWORK_MESSAGES_BUNDLE);
ConcurrentMapcreate(boolean sorted)
Returns a newly created Map object. 
ConcurrentMap<K, V> map;
if (sorted) {
    map = new ConcurrentSkipListMap<K, V>();
} else {
    map = new ConcurrentHashMap<K, V>();
return map;
MapcreateConcurrentMap()
INTERNAL: Creates new concurrent java.util.Map instance. 
try {
    Class<?> klass = Class.forName("java.util.concurrent.ConcurrentHashMap");
    return (Map<K, V>) klass.newInstance();
} catch (Exception e1) {
    try {
        Class<?> klass = Class.forName("EDU.oswego.cs.dl.util.concurrent.ConcurrentHashMap");
        return (Map<K, V>) klass.newInstance();
    } catch (Exception e2) {
...
ConcurrentMapcreateConcurrentMap()
create Concurrent Map 
return new ConcurrentHashMap<K, V>();
ConcurrentMapcreateConcurrentMap(int initial_capacity, float load_factor, int concurrency_level)
create Concurrent Map 
return new ConcurrentHashMap<K, V>(initial_capacity, load_factor, concurrency_level);
IntegerextractKeySize(String sslCipherSuite)
Extract the SSL key size of a given cipher suite. 
Integer keySize = keySizesCache.get(sslCipherSuite);
if (keySize == null) {
    final int encAlgorithmIndex = sslCipherSuite.indexOf("WITH_");
    if (encAlgorithmIndex >= 0) {
        final String encAlgorithm = sslCipherSuite.substring(encAlgorithmIndex + 5);
        if (encAlgorithm != null) {
            if (encAlgorithm.startsWith("NULL_")) {
                keySize = Integer.valueOf(0);
...