Example usage for java.lang System identityHashCode

Introduction

In this page you can find the example usage for java.lang System identityHashCode.

Prototype

@HotSpotIntrinsicCandidate
public static native int identityHashCode(Object x);

Source Link

Document

Returns the same hash code for the given object as would be returned by the default method hashCode(), whether or not the given object's class overrides hashCode().

Usage

From source file:org.apache.hadoop.hdfs.client.DfsClientShmManager.java

@Override
public String toString() {
    return String.format("ShortCircuitShmManager(%08x)", System.identityHashCode(this));
}

From source file:IdentityMap.java

/**
 * {@inheritDoc}/*from w ww  .j  a  v a2 s. c o  m*/
 * @see java.util.Collection#remove(java.lang.Object)
 */
public boolean remove(final Object key) {
    int hash = System.identityHashCode(key);
    int index = hash % _capacity;
    if (index < 0) {
        index = -index;
    }

    Entry entry = _buckets[index];
    Entry prev = null;
    while (entry != null) {
        if (entry.getKey() == key) {
            // Found the entry.
            if (prev == null) {
                // First element in bucket matches.
                _buckets[index] = entry.getNext();
            } else {
                // Remove the entry from the chain.
                prev.setNext(entry.getNext());
            }
            _entries--;
            return true;
        }
        prev = entry;
        entry = entry.getNext();
    }
    return false;
}

From source file:com.xpn.xwiki.XWikiContext.java

/**
 * @return true if {@link XWikiContext#dropPermissions()} has been called
 *              on this context, or if the {@link XWikiConstant.DROPPED_PERMISSIONS}
 *              key has been set in the {@link org.xwiki.context.ExecutionContext}
 *              for this thread. This is done by calling {@Document#dropPermissions()}
 *///from   w w  w . ja  v a2s.c  om
public boolean hasDroppedPermissions() {
    if (this.get(XWikiConstant.DROPPED_PERMISSIONS) != null) {
        return true;
    }

    final Object dropped = this.execution.getContext().getProperty(XWikiConstant.DROPPED_PERMISSIONS);

    if (dropped == null || !(dropped instanceof Integer)) {
        return false;
    }

    return ((Integer) dropped) == System.identityHashCode(this.execution.getContext());
}

From source file:nz.co.senanque.rules.RuleSessionImpl.java

public void unbind(ValidationObject validationObject) {
    Integer id = System.identityHashCode(validationObject);
    m_unbinding.add(id);/*www .  j  a va  2s  .  c om*/
    List<ProposedValue> proposedValues = new ArrayList<ProposedValue>();
    ProxyObject proxyObject = getSession().getProxyObject(validationObject);
    for (ProxyField proxyField : proxyObject.getFieldMap().values()) {
        if (!proxyField.isDerived()) {
            // Figure out if this property contains a list or a known object type
            // we want to ignore those and only reset primitive objects (long, String etc)
            Class<?> clazz = proxyField.getPropertyMetadata().getGetMethod().getReturnType();
            if (clazz.isAssignableFrom(List.class)) {
                continue;
            }
            if (getSession().getValidationEngine().getClassMetadata(clazz) != null) {
                continue;
            }
            RuleProxyField ruleProxyField = getRuleProxyField(proxyField);
            if (ruleProxyField.isDifferent(proxyField.getInitialValue())) {
                ProposedValue pv = new ProposedValue(ruleProxyField, proxyField.getInitialValue());
                proposedValues.add(pv);
            }
        }
    }
    setValues(proposedValues);
    m_boundObjects.remove(id);
    m_unbinding.remove(id);
    List<String> kill = new ArrayList<String>();
    for (Map.Entry<String, RuleContext> entry : m_ruleContextsMap.entrySet()) {
        if (entry.getValue().getValidationObject() == validationObject) {
            kill.add(entry.getKey());
        }
    }

    for (String key : kill) {
        RuleContext rc = m_ruleContextsMap.remove(key);
        rc.reset();
    }
}

From source file:org.apache.hadoop.hive.ql.exec.tez.WorkloadManager.java

private void runWmThread() {
    while (true) {
        EventState currentEvents = null;
        currentLock.lock();//from ww  w .  j a  va 2 s  .  c o  m
        try {
            while (!hasChanges) {
                try {
                    hasChangesCondition.await(1, TimeUnit.SECONDS);
                } catch (InterruptedException e) {
                    LOG.warn("WM thread was interrupted and will now exit");
                    return;
                }
            }
            hasChanges = false;
            currentEvents = current;
            current = (currentEvents == one) ? two : one;
        } finally {
            currentLock.unlock();
        }
        try {
            LOG.info("Processing current events");
            processCurrentEvents(currentEvents, syncWork);
            scheduleWork(syncWork);
            updateSessionTriggerProvidersOnMasterThread();
        } catch (InterruptedException ex) {
            LOG.warn("WM thread was interrupted and will now exit");
            return;
        } catch (Exception | AssertionError ex) {
            LOG.error("WM thread encountered an error but will attempt to continue", ex);
            for (SettableFuture<Boolean> testEvent : currentEvents.testEvents) {
                LOG.info("Failing test event " + System.identityHashCode(testEvent));
                testEvent.setException(ex);
            }
            currentEvents.testEvents.clear();
            if (currentEvents.applyRpFuture != null) {
                currentEvents.applyRpFuture.setException(ex);
                currentEvents.applyRpFuture = null;
            }
            // TODO: we either have to kill HS2 or, as the non-actor model would implicitly,
            //       hope for the best and continue on other threads. Do the latter for now.
            continue;
        }
    }
}

From source file:com.invalidcodeexception.experiment.langstringbuilder.lang3.UnsafeToStringStyle.java

/**
 * <p>Append to the <code>toString</code> an <code>Object</code>
 * value that has been detected to participate in a cycle. This
 * implementation will print the standard string value of the value.</p>
 *
 * @param buffer  the <code>StringBuffer</code> to populate
 * @param fieldName  the field name, typically not used as already appended
 * @param object  the value to add to the <code>toString</code>,
 *  not <code>null</code>/*from ww w  . j ava  2  s  . c om*/
 *
 * @since 2.2
 */
protected void appendCyclicObject(StringBuilder buffer, String fieldName, Object object) {
    if (object == null) {
        throw new NullPointerException("Cannot get the toString of a null identity");
    }
    buffer.append(object.getClass().getName()).append('@')
            .append(Integer.toHexString(System.identityHashCode(object)));
}

From source file:com.greenlaw110.rythm.toString.ToStringStyle.java

/**
 * <p>Append to the <code>toString</code> an <code>Object</code>
 * value that has been detected to participate in a cycle. This
 * implementation will print the standard string value of the value.</p>
 *
 * @param buffer  the <code>StringBuilder</code> to populate
 * @param fieldName  the field name, typically not used as already appended
 * @param value  the value to add to the <code>toString</code>,
 *  not <code>null</code>/*from w w  w. java  2s  .c o m*/
 *
 * @since 2.2
 */
protected void appendCyclicObject(StringBuilder buffer, String fieldName, Object value) {
    if (value == null) {
        throw new NullPointerException("Cannot get the toString of a null identity");
    }
    buffer.append(value.getClass().getName()).append('@')
            .append(Integer.toHexString(System.identityHashCode(value)));
}

From source file:org.apache.geode.cache.client.internal.PoolImpl.java

@Override
public String toString() {
    StringBuilder sb = new StringBuilder(100);
    sb.append(this.getClass().getSimpleName()).append('@').append(System.identityHashCode(this))
            .append(" name=").append(getName());
    return sb.toString();
}

From source file:org.jboss.jopr.tool.jbas5.MetadataConversionUtils.java

private static PropertyDefinition convertMetaTypeToPropertyDefinition(MetaType metaType, String propName,
        MetaValue metaValue) {/* www.  jav  a 2 s  . c  om*/
    PropertyDefinition propDef;
    if (metaType.isSimple() || metaType.isEnum()) {
        PropertySimpleType propType = convertClassToPropertySimpleType(metaType.getClassName());
        propDef = new PropertyDefinitionSimple(propName, null, false, propType);
    } else if (metaType.isCollection() || metaType.isArray()) {
        propDef = convertMetaTypeToPropertyDefinitionList(metaType, propName, metaValue);
    } else if (metaType.isComposite() || metaType.isGeneric() || metaType.isTable()
            || metaType instanceof PropertiesMetaType) {
        LOG.trace("Converting map with type [" + metaType + "@" + System.identityHashCode(metaType)
                + "], name [" + propName + "], and value [" + metaValue + "]...");
        propDef = convertMetaTypeToPropertyDefinitionMap(metaType, propName, metaValue);
    } else {
        throw new IllegalStateException("Unsupported MetaType: " + metaType);
    }
    propDef.setDisplayName(StringUtils.deCamelCase(propName));
    return propDef;
}

From source file:de.micromata.genome.jpa.Emgr.java

/**
 * Identity hex.//ww w  .  j  a  v  a2  s. co  m
 *
 * @param o the o
 * @return the string
 */
private String identityHex(Object o) {
    return Integer.toHexString(System.identityHashCode(o));
}