Example usage for java.lang String intern

Introduction

In this page you can find the example usage for java.lang String intern.

Prototype

public native String intern();

Source Link

Document

Returns a canonical representation for the string object.

Usage

From source file:com.jaeksoft.searchlib.schema.SchemaField.java

public void setIndexAnalyzer(String indexAnalyzer) {
    this.indexAnalyzer = StringUtils.isEmpty(indexAnalyzer) ? null : indexAnalyzer.intern();
}

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From source file:org.quartz.impl.jdbcjobstore.JTANonClusteredSemaphore.java

/**
 * Grants a lock on the identified resource to the calling thread (blocking
 * until it is available)./*from  www  . j a  v a 2 s.c om*/
 * 
 * @return true if the lock was obtained.
 */
public synchronized boolean obtainLock(Connection conn, String lockName) throws LockException {

    lockName = lockName.intern();

    Log log = getLog();

    if (log.isDebugEnabled()) {
        log.debug("Lock '" + lockName + "' is desired by: " + Thread.currentThread().getName());
    }

    if (!isLockOwner(conn, lockName)) {
        if (log.isDebugEnabled()) {
            log.debug("Lock '" + lockName + "' is being obtained: " + Thread.currentThread().getName());
        }

        while (locks.contains(lockName)) {
            try {
                this.wait();
            } catch (InterruptedException ie) {
                if (log.isDebugEnabled()) {
                    log.debug(
                            "Lock '" + lockName + "' was not obtained by: " + Thread.currentThread().getName());
                }
            }
        }

        // If we are in a transaction, register a callback to actually release
        // the lock when the transaction completes
        Transaction t = getTransaction();
        if (t != null) {
            try {
                t.registerSynchronization(new SemaphoreSynchronization(lockName));
            } catch (Exception e) {
                throw new LockException("Failed to register semaphore with Transaction.", e);
            }
        }

        if (log.isDebugEnabled()) {
            log.debug("Lock '" + lockName + "' given to: " + Thread.currentThread().getName());
        }

        getThreadLocks().add(lockName);
        locks.add(lockName);
    } else if (log.isDebugEnabled()) {
        log.debug("Lock '" + lockName + "' already owned by: " + Thread.currentThread().getName()
                + " -- but not owner!", new Exception("stack-trace of wrongful returner"));
    }

    return true;
}

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From source file:de.dfki.iui.mmds.dialogue.SiamErrorReporter.java

/**
 * @see ErrorReporter#onError(String, String, Object)
 *//*from  w ww .  jav a  2  s  . c o m*/
@Override
@SuppressWarnings("unchecked")
public void onError(final String errorCode, final String errDetail, final Object errCtx) {
    // Note: the if-then-else below is based on the actual usage
    // (codebase search), it has to be kept up-to-date as the code changes
    String errCode = errorCode.intern();
    StringBuffer msg = new StringBuffer();
    msg.append(errCode).append(" (");
    msg.append(errDetail).append("): ");
    if (errCode == ErrorConstants.NO_INITIAL) {
        if (errCtx instanceof SCXML) {
            // determineInitialStates
            msg.append("<SCXML>");
        } else if (errCtx instanceof State) {
            // determineInitialStates
            // determineTargetStates
            msg.append("State " + LogUtils.getTTPath((State) errCtx));
        }
    } else if (errCode == ErrorConstants.UNKNOWN_ACTION) {
        // executeActionList
        msg.append("Action: " + errCtx.getClass().getName());
    } else if (errCode == ErrorConstants.ILLEGAL_CONFIG)
        // isLegalConfig
        if (errCtx instanceof Map.Entry) { // unchecked cast below
            Map.Entry<TransitionTarget, Set<TransitionTarget>> badConfigMap = (Map.Entry<TransitionTarget, Set<TransitionTarget>>) errCtx;
            TransitionTarget tt = badConfigMap.getKey();
            Set<TransitionTarget> vals = badConfigMap.getValue();
            msg.append(LogUtils.getTTPath(tt) + " : [");
            for (Iterator<TransitionTarget> i = vals.iterator(); i.hasNext();) {
                TransitionTarget tx = i.next();
                msg.append(LogUtils.getTTPath(tx));
                if (i.hasNext()) {
                    msg.append(", ");
                }
            }
            msg.append(']');
        } else if (errCtx instanceof Set) { // unchecked cast below
            Set<TransitionTarget> vals = (Set<TransitionTarget>) errCtx;
            msg.append("<SCXML> : [");
            for (Iterator<TransitionTarget> i = vals.iterator(); i.hasNext();) {
                TransitionTarget tx = i.next();
                msg.append(LogUtils.getTTPath(tx));
                if (i.hasNext()) {
                    msg.append(", ");
                }
            }
            msg.append(']');
        }
    if (log.isWarnEnabled()) {
        log.warn(msg.toString());
    }
}

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From source file:org.apache.axis.utils.NSStack.java

/**
 * Given a prefix, return the associated namespace (if any).
 *//*  w  w  w  . java2 s  . c  om*/
public String getNamespaceURI(String prefix) {
    if (prefix == null)
        prefix = "";

    prefix = prefix.intern();

    for (int cursor = top; cursor > 0; cursor--) {
        Mapping map = stack[cursor];
        if (map == null)
            continue;

        if (map.getPrefix() == prefix)
            return map.getNamespaceURI();
    }

    return null;
}

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From source file:org.quartz.impl.jdbcjobstore.JTANonClusteredSemaphore.java

/**
 * Release the lock on the identified resource if it is held by the calling
 * thread, unless currently in a JTA transaction.
 * //from  w  ww  .j  a v  a 2 s  .co m
 * @param fromSynchronization True if this method is being invoked from
 *      <code>{@link Synchronization}</code> notified of the enclosing 
 *      transaction having completed.
 * 
 * @throws LockException Thrown if there was a problem accessing the JTA 
 *      <code>Transaction</code>.  Only relevant if <code>fromSynchronization</code>
 *      is false.
 */
protected synchronized void releaseLock(String lockName, boolean fromSynchronization) throws LockException {
    lockName = lockName.intern();

    if (isLockOwner(null, lockName)) {

        if (fromSynchronization == false) {
            Transaction t = getTransaction();
            if (t != null) {
                if (getLog().isDebugEnabled()) {
                    getLog().debug("Lock '" + lockName + "' is in a JTA transaction.  " + "Return deferred by: "
                            + Thread.currentThread().getName());
                }

                // If we are still in a transaction, then we don't want to 
                // actually release the lock.
                return;
            }
        }

        if (getLog().isDebugEnabled()) {
            getLog().debug("Lock '" + lockName + "' returned by: " + Thread.currentThread().getName());
        }
        getThreadLocks().remove(lockName);
        locks.remove(lockName);
        this.notify();
    } else if (getLog().isDebugEnabled()) {
        getLog().debug("Lock '" + lockName + "' attempt to return by: " + Thread.currentThread().getName()
                + " -- but not owner!", new Exception("stack-trace of wrongful returner"));
    }
}

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From source file:com.thoughtworks.go.server.cache.GoCache.java

public void removeAssociations(String key, Element element) {
    if (element.getObjectValue() instanceof KeyList) {
        synchronized (key.intern()) {
            for (String subkey : (KeyList) element.getObjectValue()) {
                remove(compositeKey(key, subkey));
            }/*from  w w w.  jav  a 2s .  c om*/
        }
    } else if (key.contains(SUB_KEY_DELIMITER)) {
        String[] parts = StringUtils.splitByWholeSeparator(key, SUB_KEY_DELIMITER);
        String parentKey = parts[0];
        String childKey = parts[1];
        synchronized (parentKey.intern()) {
            Element parent = ehCache.get(parentKey);
            if (parent == null) {
                return;
            }
            KeyList subKeys = (KeyList) parent.getObjectValue();
            subKeys.remove(childKey);
        }
    }
}

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From source file:com.netxforge.oss2.xml.event.Maskelement.java

/**
 * /*  w  w  w . j  a  v  a2s .  co m*/
 * 
 * @param vMevalue
 * @throws java.lang.IndexOutOfBoundsException if the index
 * given is outside the bounds of the collection
 */
public void addMevalue(final java.lang.String vMevalue) throws java.lang.IndexOutOfBoundsException {
    this._mevalueList.add(vMevalue.intern());
}

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From source file:org.wso2.andes.kernel.slot.SlotManagerStandalone.java

/**
 * {@inheritDoc}/*ww  w.  ja  v  a 2  s.c  o m*/
 */
@Override
public long getSafeZoneLowerBoundId(String queueName) throws AndesException {
    long lowerBoundId = -1;
    String lockKey = queueName + SlotManagerStandalone.class;
    synchronized (lockKey.intern()) {
        TreeSet<Long> messageIDSet = slotIDMap.get(queueName);
        //set the lower bound Id for safety delete region as the safety slot count interval upper bound id + 1
        if (messageIDSet.size() >= safetySlotCount) {
            lowerBoundId = messageIDSet.toArray(new Long[messageIDSet.size()])[safetySlotCount - 1] + 1;
            // Inform the slot manager regarding the current expiry deletion range and queue.
            setDeletionTaskState(queueName, lowerBoundId);
        }
    }
    return lowerBoundId;
}

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From source file:de.tudarmstadt.ukp.dkpro.core.corenlp.internal.CoreNlp2DKPro.java

private static org.apache.uima.jcas.tcas.Annotation convertConstituentTreeNode(JCas aJCas,
        TreebankLanguagePack aTreebankLanguagePack, Tree aNode, org.apache.uima.jcas.tcas.Annotation aParentFS,
        boolean internStrings, MappingProvider constituentMappingProvider, List<CoreLabel> tokens) {
    // Get node label
    String nodeLabelValue = aNode.value();

    // Extract syntactic function from node label
    String syntacticFunction = null;
    AbstractTreebankLanguagePack tlp = (AbstractTreebankLanguagePack) aTreebankLanguagePack;
    int gfIdx = nodeLabelValue.indexOf(tlp.getGfCharacter());
    if (gfIdx > 0) {
        syntacticFunction = nodeLabelValue.substring(gfIdx + 1);
        nodeLabelValue = nodeLabelValue.substring(0, gfIdx);
    }//from   w  w  w. ja va2 s . c o m

    // Check if node is a constituent node on sentence or phrase-level
    if (aNode.isPhrasal()) {
        Type constType = constituentMappingProvider.getTagType(nodeLabelValue);

        IntPair span = aNode.getSpan();
        int begin = tokens.get(span.getSource()).get(CharacterOffsetBeginAnnotation.class);
        int end = tokens.get(span.getTarget()).get(CharacterOffsetEndAnnotation.class);

        Constituent constituent = (Constituent) aJCas.getCas().createAnnotation(constType, begin, end);
        constituent.setConstituentType(internStrings ? nodeLabelValue.intern() : nodeLabelValue);
        constituent.setSyntacticFunction(
                internStrings && syntacticFunction != null ? syntacticFunction.intern() : syntacticFunction);
        constituent.setParent(aParentFS);

        // Do we have any children?
        List<org.apache.uima.jcas.tcas.Annotation> childAnnotations = new ArrayList<>();
        for (Tree child : aNode.getChildrenAsList()) {
            org.apache.uima.jcas.tcas.Annotation childAnnotation = convertConstituentTreeNode(aJCas,
                    aTreebankLanguagePack, child, constituent, internStrings, constituentMappingProvider,
                    tokens);
            if (childAnnotation != null) {
                childAnnotations.add(childAnnotation);
            }
        }

        // Now that we know how many children we have, link annotation of
        // current node with its children
        constituent.setChildren(FSCollectionFactory.createFSArray(aJCas, childAnnotations));

        constituent.addToIndexes();

        return constituent;
    }
    // Create parent link on token
    else if (aNode.isPreTerminal()) {
        // link token to its parent constituent
        List<Tree> children = aNode.getChildrenAsList();
        assert children.size() == 1;
        Tree terminal = children.get(0);
        CoreLabel label = (CoreLabel) terminal.label();
        Token token = label.get(TokenKey.class);
        token.setParent(aParentFS);
        return token;
    } else {
        throw new IllegalArgumentException("Node must be either phrasal nor pre-terminal");
    }
}

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From source file:modula.executor.core.reporter.SimpleErrorReporter.java

/**
 * @see ErrorReporter#onError(String, String, Object)
 *///from   w  w  w  .  j  a v a2  s  .  co  m
@SuppressWarnings("unchecked")
public void onError(final String errorCode, final String errDetail, final Object errCtx) {
    //Note: the if-then-else below is based on the actual usage
    // (codebase search), it has to be kept up-to-date as the code changes
    String errCode = errorCode.intern();
    StringBuffer msg = new StringBuffer();
    msg.append(errCode).append(" (");
    msg.append(errDetail).append("): ");
    if (errCode == ErrorConstants.NO_INITIAL) {
        if (errCtx instanceof Modula) {
            //determineInitialStates
            msg.append("<Modula>");
        } else if (errCtx instanceof State) {
            //determineInitialStates
            //determineTargetStates
            msg.append("State " + LogUtils.getTTPath((State) errCtx));
        }
    } else if (errCode == ErrorConstants.UNKNOWN_ACTION) {
        //executeActionList
        msg.append("Action: " + errCtx.getClass().getName());
    } else if (errCode == ErrorConstants.ILLEGAL_CONFIG) {
        //isLegalConfig
        if (errCtx instanceof Map.Entry) { //unchecked cast below
            Map.Entry<EnterableState, Set<EnterableState>> badConfigMap = (Map.Entry<EnterableState, Set<EnterableState>>) errCtx;
            EnterableState es = badConfigMap.getKey();
            Set<EnterableState> vals = badConfigMap.getValue();
            msg.append(LogUtils.getTTPath(es) + " : [");
            for (Iterator<EnterableState> i = vals.iterator(); i.hasNext();) {
                EnterableState ex = i.next();
                msg.append(LogUtils.getTTPath(ex));
                if (i.hasNext()) { // reason for iterator usage
                    msg.append(", ");
                }
            }
            msg.append(']');
        } else if (errCtx instanceof Set) { //unchecked cast below
            Set<EnterableState> vals = (Set<EnterableState>) errCtx;
            msg.append("<Modula> : [");
            for (Iterator<EnterableState> i = vals.iterator(); i.hasNext();) {
                EnterableState ex = i.next();
                msg.append(LogUtils.getTTPath(ex));
                if (i.hasNext()) {
                    msg.append(", ");
                }
            }
            msg.append(']');
        }
    } else if (errCode == ErrorConstants.EXPRESSION_ERROR) {
        if (errCtx instanceof Executable) {
            TransitionTarget parent = ((Executable) errCtx).getParent();
            msg.append("Expression error inside " + LogUtils.getTTPath(parent));
        } else if (errCtx instanceof Modula) {
            // Global Script
            msg.append("Expression error inside the global script");
        }
    }
    handleErrorMessage(errorCode, errDetail, errCtx, msg);
}

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