Example usage for java.util IdentityHashMap containsKey

List of usage examples for java.util IdentityHashMap containsKey

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Introduction

In this page you can find the example usage for java.util IdentityHashMap containsKey.

Prototype

public boolean containsKey(Object key)

Source Link

Document

Tests whether the specified object reference is a key in this identity hash map.

Usage

From source file:Main.java

public static void main(String[] argv) throws Exception {
    IdentityHashMap<Object, Object> objMap = new IdentityHashMap<Object, Object>();

    Object o1 = new Integer(123);
    Object o2 = new Integer(123);
    objMap.put(o1, "first");
    objMap.put(o2, "from java2s.com");

    Object v1 = objMap.get(o1);//w ww  . j  a  va 2s  . com
    System.out.println(v1);
    Object v2 = objMap.get(o2);
    System.out.println(v2);

    // check if key 3 exists
    boolean isavailable = objMap.containsKey(o1);

    System.out.println(isavailable);
}

From source file:com.qrmedia.commons.persistence.hibernate.clone.wiring.AbstractPropertyModifyingCommand.java

public void execute(IdentityHashMap<Object, Object> entityClones) {

    if (!entityClones.containsKey(originalEntity)) {
        throw new AssertionError("No clone for " + originalEntity + " available?!");
    }/*from   w ww .ja  va2  s . c  om*/

    wireUpProperty(target, propertyName, entityClones.get(originalEntity));
}

From source file:com.flipkart.flux.client.runtime.LocalContext.java

public String generateEventName(Event event) {
    final IdentityHashMap<Event, String> eventNamesMap = this.eventNames.get();
    if (!eventNamesMap.containsKey(event)) {
        eventNamesMap.put(event, generateName(event));
    }//from ww w . j av a  2s .  c  o m
    return eventNamesMap.get(event);
}

From source file:com.parse.ParseTraverser.java

/**
 * Internal implementation of traverse./* w w w. j a  va2s . c o m*/
 */
private void traverseInternal(Object root, boolean yieldRoot, IdentityHashMap<Object, Object> seen) {
    if (root == null || seen.containsKey(root)) {
        return;
    }

    if (yieldRoot) {
        if (!visit(root)) {
            return;
        }
    }

    seen.put(root, root);

    if (root instanceof JSONObject) {
        JSONObject json = (JSONObject) root;
        Iterator<String> keys = json.keys();
        while (keys.hasNext()) {
            String key = keys.next();
            try {
                traverseInternal(json.get(key), true, seen);
            } catch (JSONException e) {
                // This should never happen.
                throw new RuntimeException(e);
            }
        }

    } else if (root instanceof JSONArray) {
        JSONArray array = (JSONArray) root;
        for (int i = 0; i < array.length(); ++i) {
            try {
                traverseInternal(array.get(i), true, seen);
            } catch (JSONException e) {
                // This should never happen.
                throw new RuntimeException(e);
            }
        }

    } else if (root instanceof Map) {
        Map<?, ?> map = (Map<?, ?>) root;
        for (Object value : map.values()) {
            traverseInternal(value, true, seen);
        }

    } else if (root instanceof List) {
        List<?> list = (List<?>) root;
        for (Object value : list) {
            traverseInternal(value, true, seen);
        }

    } else if (root instanceof ParseObject) {
        if (traverseParseObjects) {
            ParseObject object = (ParseObject) root;
            for (String key : object.keySet()) {
                traverseInternal(object.get(key), true, seen);
            }
        }

    } else if (root instanceof ParseACL) {
        ParseACL acl = (ParseACL) root;
        ParseUser user = acl.getUnresolvedUser();
        if (user != null && user.isCurrentUser()) {
            traverseInternal(user, true, seen);
        }
    }
}

From source file:com.amazon.janusgraph.diskstorage.dynamodb.DynamoDBDelegate.java

/**
 * Helper method that can clone an Attribute Value
 *
 * @param val the AttributeValue to copy
 * @param sourceDestinationMap used to avoid loops by keeping track of references
 * @return a copy of val//from w w  w .ja  va  2  s  .  c  o m
 */
public static AttributeValue clone(AttributeValue val,
        IdentityHashMap<AttributeValue, AttributeValue> sourceDestinationMap) {
    if (val == null) {
        return null;
    }

    if (sourceDestinationMap.containsKey(val)) {
        return sourceDestinationMap.get(val);
    }

    AttributeValue clonedVal = new AttributeValue();
    sourceDestinationMap.put(val, clonedVal);
    if (val.getN() != null) {
        clonedVal.setN(val.getN());
    } else if (val.getS() != null) {
        clonedVal.setS(val.getS());
    } else if (val.getB() != null) {
        clonedVal.setB(val.getB());
    } else if (val.getNS() != null) {
        clonedVal.setNS(val.getNS());
    } else if (val.getSS() != null) {
        clonedVal.setSS(val.getSS());
    } else if (val.getBS() != null) {
        clonedVal.setBS(val.getBS());
    } else if (val.getBOOL() != null) {
        clonedVal.setBOOL(val.getBOOL());
    } else if (val.getNULL() != null) {
        clonedVal.setNULL(val.getNULL());
    } else if (val.getL() != null) {
        List<AttributeValue> list = new ArrayList<>(val.getL().size());
        for (AttributeValue listItemValue : val.getL()) {
            if (!sourceDestinationMap.containsKey(listItemValue)) {
                sourceDestinationMap.put(listItemValue, clone(listItemValue, sourceDestinationMap));
            }
            list.add(sourceDestinationMap.get(listItemValue));
        }
        clonedVal.setL(list);
    } else if (val.getM() != null) {
        Map<String, AttributeValue> map = new HashMap<>(val.getM().size());
        for (Entry<String, AttributeValue> pair : val.getM().entrySet()) {
            if (!sourceDestinationMap.containsKey(pair.getValue())) {
                sourceDestinationMap.put(pair.getValue(), clone(pair.getValue(), sourceDestinationMap));
            }
            map.put(pair.getKey(), sourceDestinationMap.get(pair.getValue()));
        }
        clonedVal.setM(map);
    }
    return clonedVal;
}

From source file:com.amazon.janusgraph.diskstorage.dynamodb.DynamoDBDelegate.java

/**
 * Helper method that clones an item//  w  w w. j  a  v  a 2s . c o  m
 *
 * @param item the item to clone
 * @return a clone of item.
 */
public static Map<String, AttributeValue> cloneItem(Map<String, AttributeValue> item) {
    if (item == null) {
        return null;
    }
    Map<String, AttributeValue> clonedItem = Maps.newHashMap();
    IdentityHashMap<AttributeValue, AttributeValue> sourceDestinationMap = new IdentityHashMap<>();

    for (Entry<String, AttributeValue> entry : item.entrySet()) {
        if (!sourceDestinationMap.containsKey(entry.getValue())) {
            sourceDestinationMap.put(entry.getValue(), clone(entry.getValue(), sourceDestinationMap));
        }
        clonedItem.put(entry.getKey(), sourceDestinationMap.get(entry.getValue()));
    }
    return clonedItem;
}

From source file:de.micromata.genome.util.bean.PrivateBeanUtils.java

/**
 * Gets the bean size.//from   w  w w  .ja va2 s.  c o m
 *
 * @param bean the bean
 * @param clazz the clazz
 * @param m the m
 * @param classNameMatcher the class name matcher
 * @param fieldNameMatcher the field name matcher
 * @return the bean size
 */
public static int getBeanSize(Object bean, Class<?> clazz, IdentityHashMap<Object, Object> m,
        Matcher<String> classNameMatcher, Matcher<String> fieldNameMatcher) {
    if (m.containsKey(bean) == true) {
        return 0;
    }
    m.put(bean, null);
    return getBeanSizeIntern(bean, clazz, m, classNameMatcher, fieldNameMatcher);
}

From source file:de.micromata.genome.util.bean.PrivateBeanUtils.java

/**
 * Gets the bean size.//from   w  w  w .j a v a2 s . co  m
 *
 * @param bean the bean
 * @param m the m
 * @param classNameMatcher the class name matcher
 * @param fieldNameMatcher the field name matcher
 * @return the bean size
 */
public static int getBeanSize(Object bean, IdentityHashMap<Object, Object> m, Matcher<String> classNameMatcher,
        Matcher<String> fieldNameMatcher) {

    if (bean == null) {
        return 0;
    }
    if (m.containsKey(bean) == true) {
        return 0;
    }
    try {
        Class<?> clazz = bean.getClass();
        return getBeanSize(bean, clazz, m, classNameMatcher, fieldNameMatcher);
    } catch (NoClassDefFoundError ex) {
        return 0;
    }
}

From source file:net.datenwerke.sandbox.SandboxLoader.java

private SandboxLoader initSubLoader(IdentityHashMap<SandboxContext, SandboxLoader> loaderMap,
        SandboxContext context) {//from w ww .  j  a v a2 s.c  o m
    if (loaderMap.containsKey(context))
        return loaderMap.get(context);

    SandboxLoader subLoader = new SandboxLoader(this, securityManager);
    subLoader.init(context);

    loaderMap.put(context, subLoader);

    return subLoader;
}

From source file:ome.services.util.ServiceHandler.java

/**
 * public for testing purposes.//from  w w w . j av a  2 s .c  o  m
 */
public String getResultsString(Object o, IdentityHashMap<Object, String> cache) {

    if (o == null) {
        return "null";
    }

    if (cache == null) {
        cache = new IdentityHashMap<Object, String>();
    } else {
        if (cache.containsKey(o)) {
            return (String) cache.get(o);
        }
    }

    if (o instanceof Collection) {
        int count = 0;
        StringBuilder sb = new StringBuilder(128);
        sb.append("(");
        Collection c = (Collection) o;
        for (Object obj : (c)) {
            if (count > 0) {
                sb.append(", ");
            }
            if (count > 2) {
                sb.append("... ");
                sb.append(c.size() - 3);
                sb.append(" more");
                break;
            }
            sb.append(obj);
            count++;
        }
        sb.append(")");
        return sb.toString();
    } else if (o instanceof Map) {
        Map map = (Map) o;
        int count = 0;
        StringBuilder sb = new StringBuilder();
        sb.append("{");
        for (Object k : map.keySet()) {
            if (count > 0) {
                sb.append(", ");
            }
            if (count > 2) {
                sb.append("... ");
                sb.append(map.size() - 3);
                sb.append(" more");
                break;
            }
            sb.append(k);
            sb.append("=");
            cache.put(o, o.getClass().getName() + ":" + System.identityHashCode(o));
            sb.append(getResultsString(map.get(k), cache));
            count++;
        }
        sb.append("}");
        return sb.toString();
    } else if (o.getClass().isArray()) {
        int length = Array.getLength(o);
        if (length == 0) {
            return "[]";
        }
        StringBuilder sb = new StringBuilder(128);
        sb.append("[");
        for (int i = 0; i < length; i++) {

            if (i != 0) {
                sb.append(", ");
            }

            if (i > 2) {
                sb.append("... ");
                sb.append(i - 2);
                sb.append(" more");
                break;
            }
            sb.append(Array.get(o, i));
        }
        sb.append("]");
        return sb.toString();
    } else {
        return o.toString();
    }
}