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, V> Set<V> lookup(Map<K, V> map, Collection<K> keys) {
    Set<V> result = new LinkedHashSet<V>();
    for (K key : keys) {
        V e = map.get(key);
        if (e != null) {
            result.add(e);/* www .  j  a  v a  2 s . co m*/
        }
    }
    return result;
}

From source file:io.gromit.uaparser.model.Device.java

/**
 * From map.//w ww  . jav  a2s.  c o  m
 *
 * @param m
 *            the m
 * @return the device
 */
public static Device fromMap(Map<String, String> m) {
    return new Device(m.get("family"), m.get("brand"), m.get("model"));
}

From source file:Main.java

/**
 * Make a list map immutable./*from w w w .j  a  v a  2s  .com*/
 *
 * @param listMap
 *            the list map in input.
 * @return the immutable list map.
 */
public static <C, E> Map<C, List<E>> makeListMapImmutable(Map<C, List<E>> listMap) {
    for (C key : listMap.keySet()) {
        listMap.put(key, Collections.unmodifiableList(listMap.get(key)));
    }

    return Collections.unmodifiableMap(listMap);
}

From source file:Main.java

public static URL getLargestImageURL(Map<String, URL> imageURLs) {
    if (imageURLs == null) {
        return null;
    }/*w ww  . ja va 2s  .  co  m*/

    URL result = imageURLs.get("large");

    if (result != null) {
        return result;
    }

    result = imageURLs.get("medium");

    if (result != null) {
        return result;
    }

    return imageURLs.get("small");
}

From source file:org.eclipse.swordfish.core.configuration.xml.SaxParsingPrototype.java

private static void putElement(Map<String, List<String>> props, String key, String value) {
    if (props.containsKey(key)) {
        props.get(key).add(value);
    } else {// w  w  w .  j av  a  2 s  .  c om
        List<String> list = new LinkedList<String>();
        list.add(value);
        props.put(key, list);
    }
}

From source file:com.common.server.AppLicenceUtil.java

public static int userCount() throws Exception {

    Map map = getLicence();
    String userCount = (String) map.get("userCount");
    if (userCount != null) {

        int count = Integer.valueOf(userCount).intValue();
        return count;

    } else//from  www. j  ava 2 s  .c o m
        return 0;
}

From source file:com.salesmanager.core.util.LanguageUtil.java

public static String getLanguageStringCode(int lang) {

    Map langmap = RefCache.getLanguageswithindex();
    Language l = (Language) langmap.get(lang);
    if (l != null) {
        return l.getCode();
    } else {//from  w  w w  .j  a v  a 2  s .  c  om
        return Constants.ENGLISH_CODE;
    }
}

From source file:Main.java

public static Object get(String key) {
    Map<String, Object> threadCache = threadCacheHolder.get();

    if (threadCache == null) {
        return null;
    }//from w ww .j  a va2 s  .  com

    return threadCache.get(key);
}

From source file:Main.java

/**
 * /*  w  ww.j av a2 s . c o m*/
 * pre : resultSet must be a valid List&lt;Map&gt; <br>
 * post : a Map&lt;columnName, List of same columnName&gt;
 * 
 * @param <K>
 * @param resultSet
 *          result set from sql. no need order by
 * @param columnName
 *          the column name that need to group by
 * @return null if resultSet is null
 */
@SuppressWarnings("rawtypes")
public static <K> Map<K, List<Map>> sqlMapListToMap(List<Map> resultSet, String columnName) {

    if (resultSet == null)
        return null;

    Map<K, List<Map>> rs = new HashMap<K, List<Map>>();
    for (Map<?, ?> map : resultSet) {

        K colValue = (K) map.get(columnName);

        List<Map> inMap = rs.get(colValue);
        if (inMap == null)
            inMap = new ArrayList<Map>();
        inMap.add(map);
        rs.put(colValue, inMap);
    }
    return rs;
}

From source file:Main.java

/**
 * Returns a {@link Map} mapping each unique element in the given
 * {@link Iterable} to an {@link Integer} representing the number
 * of occurrences of that element in the {@link Iterable}.
 * <p/>/*from   ww  w .j a v a  2  s  .c om*/
 * Only those elements present in the Iterable will appear as
 * keys in the map.
 *
 * @param iterable the collection to get the cardinality map for, must not be null
 * @return the populated cardinality map
 */
public static <E> Map<E, java.lang.Integer> getCardinalityMap(final Iterable<E> iterable) {
    Map<E, Integer> count = new HashMap<E, Integer>();
    for (E obj : iterable) {
        Integer c = count.get(obj);
        if (c == null) {
            count.put(obj, INTEGER_ONE);
        } else {
            count.put(obj, c + 1);
        }
    }
    return count;
}