Example usage for java.util Map entrySet

Introduction

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

Prototype

Set<Map.Entry<K, V>> entrySet();

Source Link

Document

Returns a Set view of the mappings contained in this map.

Usage

From source file:Main.java

/**
 * Sets the Map as DOM attributes on the given Element.
 * <p>/* w  ww. ja va2s  . co m*/
 * This implementation uses <code>element.setAttribute</code>. Therefore if the element already
 * has attributes, the new attributes are added amongst them. If attributes with the same name
 * already exist, they are overwritten.
 */

public static void setMapAsAttributes(Element element, Map<String, String> attributes) {

    if (attributes == null) {
        return;
    }

    for (Map.Entry<String, String> entry : attributes.entrySet()) {

        String value = entry.getValue();

        if (value == null) {
            element.removeAttribute(entry.getKey());
            continue;
        }

        element.setAttribute(entry.getKey(), value);
    }
}

From source file:Main.java

/** Creates a single Map with fields from the passed in Map and all nested Maps (for Map and Collection of Map entry values) */
@SuppressWarnings("unchecked")
public static Map flattenNestedMap(Map theMap) {
    if (theMap == null)
        return null;
    Map outMap = new LinkedHashMap();
    for (Object entryObj : theMap.entrySet()) {
        Map.Entry entry = (Map.Entry) entryObj;
        Object value = entry.getValue();
        if (value instanceof Map) {
            outMap.putAll(flattenNestedMap((Map) value));
        } else if (value instanceof Collection) {
            for (Object colValue : (Collection) value) {
                if (colValue instanceof Map)
                    outMap.putAll(flattenNestedMap((Map) colValue));
            }//  www.  j  a  v  a2 s .  c o m
        } else {
            outMap.put(entry.getKey(), entry.getValue());
        }
    }
    return outMap;
}

From source file:Main.java

public static String urlencode(Map<String, ?> data) {
    StringBuilder sb = new StringBuilder();
    for (Map.Entry<String, ?> i : data.entrySet()) {
        try {/*from  www  .  jav a 2 s .  com*/
            sb.append(i.getKey()).append("=").append(URLEncoder.encode(i.getValue() + "", "UTF-8")).append("&");
        } catch (UnsupportedEncodingException e) {
            e.printStackTrace();
        }
    }
    return sb.toString();
}

From source file:Main.java

/**
 * Returns the <code>index</code>-th value in <code>object</code>, throwing
 * <code>IndexOutOfBoundsException</code> if there is no such element or
 * <code>IllegalArgumentException</code> if <code>object</code> is not an
 * instance of one of the supported types.
 * <p/>/*w  ww . j ava 2  s .c  o m*/
 * The supported types, and associated semantics are:
 * <ul>
 * <li> Map -- the value returned is the <code>Map.Entry</code> in position
 * <code>index</code> in the map's <code>entrySet</code> iterator,
 * if there is such an entry.</li>
 * <li> List -- this method is equivalent to the list's get method.</li>
 * <li> Array -- the <code>index</code>-th array entry is returned,
 * if there is such an entry; otherwise an <code>IndexOutOfBoundsException</code>
 * is thrown.</li>
 * <li> Collection -- the value returned is the <code>index</code>-th object
 * returned by the collection's default iterator, if there is such an element.</li>
 * <li> Iterator or Enumeration -- the value returned is the
 * <code>index</code>-th object in the Iterator/Enumeration, if there
 * is such an element.  The Iterator/Enumeration is advanced to
 * <code>index</code> (or to the end, if <code>index</code> exceeds the
 * number of entries) as a side effect of this method.</li>
 * </ul>
 *
 * @param object the object to get a value from
 * @param index  the index to get
 * @return the object at the specified index
 * @throws IndexOutOfBoundsException if the index is invalid
 * @throws IllegalArgumentException  if the object type is invalid
 */
public static Object get(Object object, int index) {
    if (index < 0)
        throw new IndexOutOfBoundsException("Index cannot be negative: " + index);

    if (object instanceof Map) {
        Map map = (Map) object;
        Iterator iterator = map.entrySet().iterator();
        return get(iterator, index);
    } else if (object instanceof List) {
        return ((List) object).get(index);
    } else if (object instanceof Object[]) {
        return ((Object[]) object)[index];
    } else if (object instanceof Iterator) {
        Iterator it = (Iterator) object;
        while (it.hasNext()) {
            index--;

            if (index == -1)
                return it.next();
            else
                it.next();
        }

        throw new IndexOutOfBoundsException("Entry does not exist: " + index);
    } else if (object instanceof Collection) {
        Iterator iterator = ((Collection) object).iterator();
        return get(iterator, index);
    } else if (object instanceof Enumeration) {
        Enumeration it = (Enumeration) object;
        while (it.hasMoreElements()) {
            index--;

            if (index == -1)
                return it.nextElement();
            else
                it.nextElement();
        }

        throw new IndexOutOfBoundsException("Entry does not exist: " + index);
    } else if (object == null) {
        throw new IllegalArgumentException("Unsupported object type: null");
    } else {
        try {
            return Array.get(object, index);
        } catch (IllegalArgumentException ex) {
            throw new IllegalArgumentException("Unsupported object type: " + object.getClass().getName());
        }
    }
}

From source file:Main.java

public static String encode(Map<String, String> params, String encoding) {
    StringBuilder encodedParams = new StringBuilder();

    try {//from   w w  w .  j a  v a  2 s .c  o  m
        Set uee = params.entrySet();
        int size = uee.size();
        int index = 0;
        Iterator iterator = uee.iterator();

        while (iterator.hasNext()) {
            Map.Entry entry = (Map.Entry) iterator.next();
            encodedParams.append(URLEncoder.encode((String) entry.getKey(), encoding));
            encodedParams.append('=');
            encodedParams.append(URLEncoder.encode((String) entry.getValue(), encoding));
            ++index;
            if (index < size) {
                encodedParams.append('&');
            }
        }

        return encodedParams.toString();
    } catch (UnsupportedEncodingException e) {
        throw new RuntimeException("Encoding not supported: " + encoding, e);
    }
}

From source file:de.tudarmstadt.ukp.experiments.argumentation.convincingness.sampling.IOHelper.java

/**
 * Sorts map by value (http://stackoverflow.com/a/2581754)
 *
 * @param map map/* w ww .ja va 2s.  co  m*/
 * @param <K> key
 * @param <V> value
 * @return sorted map by value
 */
public static <K, V extends Comparable<? super V>> LinkedHashMap<K, V> sortByValue(Map<K, V> map,
        final boolean asc) {
    List<Map.Entry<K, V>> list = new LinkedList<>(map.entrySet());
    Collections.sort(list, new Comparator<Map.Entry<K, V>>() {
        @Override
        public int compare(Map.Entry<K, V> o1, Map.Entry<K, V> o2) {
            if (asc) {
                return (o1.getValue()).compareTo(o2.getValue());
            } else {
                return (o2.getValue()).compareTo(o1.getValue());
            }
        }
    });

    LinkedHashMap<K, V> result = new LinkedHashMap<>();
    for (Map.Entry<K, V> entry : list) {
        result.put(entry.getKey(), entry.getValue());
    }
    return result;
}

From source file:Main.java

/**
 * Creates a map of tag name to clean header XML by running a substitution
 * regex on each entry of tag to dirty header XML.
 *
 * @param dirtyXmlMap a map of tag name to dirty header XML
 * @return a map of tag name to clean header XML
 *///from  www  .j av  a  2s .c  o m
private static Map<String, String> createTagToCleanXmlMap(Map<String, String> dirtyXmlMap) {
    Map<String, String> cleanXmlMap = new HashMap<String, String>();
    for (Entry<String, String> sensitiveXml : dirtyXmlMap.entrySet()) {
        Pattern p = Pattern.compile(
                String.format(SENSITIVE_REGEX, sensitiveXml.getKey(), sensitiveXml.getKey()),
                Pattern.CASE_INSENSITIVE | Pattern.DOTALL);
        Matcher m = p.matcher(sensitiveXml.getValue());
        if (m.matches()) {
            cleanXmlMap.put(sensitiveXml.getKey(), m.replaceFirst("$1******$2"));
        }
    }
    return cleanXmlMap;
}

From source file:Main.java

public static String mapToString(Map<? extends Object, ? extends Object> result) {
    StringBuilder builder = new StringBuilder();
    for (Entry<? extends Object, ? extends Object> productEntry : result.entrySet()) {
        builder.append(productEntry.getKey() + "\t" + productEntry.getValue() + "\n");
    }/*from   w w w.ja v a 2 s. com*/
    return builder.toString();
}

From source file:com.jaspersoft.jasperserver.ps.OAuth.JSONUtils.java

public static String getMapEntry(Map<String, String> map, String searchstring) {

    for (Map.Entry<String, String> entry : map.entrySet()) {
        if (entry.getKey().toLowerCase().contains(searchstring.toLowerCase())) {
            return entry.getValue();
        }/*from w ww  . j  a  v a  2 s  . c om*/

    }
    return null;

}

From source file:de.christianseipl.utilities.maputils.MapPrinting.java

public static <K, V> void printOneDimensionalMap(String _header, Map<K, V> _map) {
    System.out.println(_header);/*from ww w. j  av  a2s.  c  o m*/
    for (Entry<K, V> entry : _map.entrySet()) {
        System.out.println(String.format("%20s\t%20s", entry.getKey().toString(), entry.getValue().toString()));
    }
    System.out.println();
}