Example usage for java.util Collection clear

Introduction

In this page you can find the example usage for java.util Collection clear.

Prototype

void clear();

Source Link

Document

Removes all of the elements from this collection (optional operation).

Usage

From source file:StringUtils.java

/**
 * Parse String to ANY collection you specify and trim each item.
 * /*  w w  w  .  j ava 2s . c o  m*/
 * @param strParse -
 *          String to parse
 * @param strDel -
 *          String deliminer
 * @param container -
 *          if specified then it will be filled with items (it WILL NOT be
 *          emptied first). If this is null, the default collection will be
 *          allocated. This allows you here to pass list or set so this method
 *          is more flexible.
 * @param bTrim -
 *          should it be trimmed or not
 * @param iConvertCase -
 *          how to convert the case of the string - one of the CASE_XXX
 *          costants
 * @return Collection - parsed collection, if container was specified, the
 *         same object will be returned. If it was not specified default
 *         object will be returned. If strParse was not null, then this will
 *         be not null.
 */
public static Collection parseStringToCollection(String strParse, String strDel, boolean bTrim,
        int iConvertCase, Collection container) {
    Collection colReturn;

    if (strParse == null || strParse.length() < 1) {
        if (container != null) {
            colReturn = container;
        } else {
            colReturn = null;
        }
    } else {
        // TODO: Performance: StringTokenizer is considered to be slow
        // because it creates lots of objects internally, consider replacing
        // this with String.indexOf(delimiter)
        StringTokenizer strTokParse = new StringTokenizer(strParse, strDel);
        String strTemp;

        if (container == null) {
            // This has to be List since parseStringToList requires it
            colReturn = new ArrayList();
        } else {
            container.clear();
            colReturn = container;
        }

        if (strParse.startsWith(strDel)) {
            // If the string starts with the delimiter, tokenizer would skip it
            // but we have to have empty element in front
            colReturn.add("");
        }

        while (strTokParse.hasMoreTokens()) {
            strTemp = (String) strTokParse.nextToken();
            if (bTrim) {
                strTemp = strTemp.trim();
            }
            switch (iConvertCase) {
            case (CASE_ORIGINAL): {
                // do nothing
                break;
            }
            case (CASE_TOUPPER): {
                strTemp = strTemp.toUpperCase();
                break;
            }
            case (CASE_TOLOWER): {
                strTemp = strTemp.toLowerCase();
                break;
            }
            default: {
                assert false : "Incorrect case specification.";
            }
            }
            colReturn.add(strTemp);
        }
    }
    return colReturn;
}

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From source file:ubic.gemma.persistence.service.genome.sequenceAnalysis.AnnotationAssociationDaoImpl.java

@Override
public Collection<AnnotationAssociation> load(Collection<Long> ids) {
    if (ids.size() == 0) {
        return new HashSet<>();
    }//from w w w . java 2 s.co m
    int BATCH_SIZE = 2000;

    //language=HQL
    final String queryString = "select a from AnnotationAssociation a where a.id in (:ids)";
    Collection<Long> batch = new HashSet<>();
    Collection<AnnotationAssociation> results = new HashSet<>();

    for (Long id : ids) {
        batch.add(id);
        if (batch.size() == BATCH_SIZE) {
            //noinspection unchecked
            results.addAll(this.getSessionFactory().getCurrentSession().createQuery(queryString)
                    .setParameterList("ids", batch).list());
            batch.clear();
        }
    }
    if (batch.size() > 0) {
        //noinspection unchecked
        results.addAll(this.getSessionFactory().getCurrentSession().createQuery(queryString)
                .setParameterList("ids", batch).list());
    }

    return results;
}

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From source file:org.jactr.core.module.declarative.search.local.DefaultSearchSystem.java

public void clear() {
    try {/*from  w w  w  . j  av a  2s  .c  o m*/
        _lock.writeLock().lock();
        for (Collection<ITypeValueMap<?, IChunk>> collection : _slotMap.values()) {
            if (collection != null) {
                for (ITypeValueMap<?, IChunk> tvm : collection)
                    tvm.clear();
                collection.clear();
            }
        }
        _slotMap.clear();
    } finally {
        _lock.writeLock().unlock();
    }
}

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From source file:de.ingrid.usermanagement.jetspeed.IngridPermissionManager.java

/**
 * @see org.apache.jetspeed.security.PermissionManager#removePermissions(java.security.Principal)
 *///from ww  w . ja  va  2  s. com
public void removePermissions(Principal principal) throws SecurityException {
    String fullPath = SecurityHelper.getPreferencesFullPath(principal);
    ArgUtil.notNull(new Object[] { fullPath }, new String[] { "fullPath" },
            "removePermission(java.security.Principal)");

    // Remove permissions on principal.
    InternalPrincipal internalPrincipal = getInternalPrincipal(fullPath);
    if (null != internalPrincipal) {
        Collection internalPermissions = internalPrincipal.getPermissions();
        if (null != internalPermissions) {
            internalPermissions.clear();
        }
        try {
            internalPrincipal.setModifiedDate(new Timestamp(System.currentTimeMillis()));
            internalPrincipal.setPermissions(internalPermissions);

            broker.beginTransaction();
            broker.store(internalPrincipal);
            broker.commitTransaction();
        } catch (Exception e) {
            KeyedMessage msg = SecurityException.UNEXPECTED.create("PermissionManager.removePermissions",
                    "store", e.getMessage());
            log.error(msg, e);
            broker.abortTransaction();
            throw new SecurityException(msg, e);
        }
    }
}

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From source file:org.wso2.carbon.bpel.analytics.publisher.Axis2ConfigurationContextObserverImpl.java

public void terminatingConfigurationContext(ConfigurationContext configurationContext) {
    Integer tenantId = CarbonContext.getThreadLocalCarbonContext().getTenantId();

    log.info("Removing data publishers for this tenant " + tenantId + ".");

    TenantProcessStore tenantsProcessStore = bpelServer.getMultiTenantProcessStore()
            .getTenantsProcessStore(tenantId);
    if (tenantsProcessStore != null) {
        Map dataPublisherMap = tenantsProcessStore.getDataPublisherMap();
        if (dataPublisherMap != null) {
            Collection<DataPublisher> dataPublisherCollection = dataPublisherMap.values();
            Iterator<DataPublisher> iterator = dataPublisherCollection.iterator();
            while (iterator.hasNext()) {
                DataPublisher dataPublisher = iterator.next();
                try {
                    dataPublisher.shutdown();
                } catch (DataEndpointException e) {
                    String errMsg = "Error while shutting down tenant Data Publisher";
                    log.error(errMsg, e);
                }/*from   w w  w . j  a  va  2s .  co  m*/
            }
            dataPublisherCollection.clear();
        }
    }
}

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From source file:org.openanzo.datasource.nodecentric.internal.NodeCentricDatasourceFactory.java

@Override
public void stop(boolean bundleStopping) {
    aclTracker.close();//from   www.j av  a 2 s. c o  m
    for (NodeCentricDatasource ds : datasources.values()) {
        try {
            ds.close(bundleStopping);
            Collection<ServiceRegistration> regs = serviceRegistrations.remove(ds);
            if (regs != null) {
                for (ServiceRegistration reg : regs) {
                    if (!bundleStopping) {
                        reg.unregister();
                    }
                }
                regs.clear();
            }
        } catch (AnzoException ae) {
            log.error(LogUtils.LIFECYCLE_MARKER, "Error closing nodecentric datasource", ae);
        }
    }
    datasources.clear();
    if (bundleStopping && jmxRegistration != null) {
        jmxRegistration.unregister();
        jmxRegistration = null;
    }
}

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From source file:mitm.djigzo.web.pages.ca.CARequestsPreview.java

private void sendRequestsInBatches() throws WebServiceCheckedException, IOException {
    Collection<RequestParameters> batch = new ArrayList<RequestParameters>(maxBatchSize);

    for (RequestParameters request : certificateRequests) {
        batch.add(request);//from www.  ja va  2  s .  co  m

        if (batch.size() >= maxBatchSize) {
            sendRequests(batch);

            batch.clear();
        }
    }

    /*
     * Check if there are still some requests left to send (happens when the number
     * of requests is not a multiple of maxBatchSize)
     */
    if (batch.size() > 0) {
        sendRequests(batch);
    }
}

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From source file:org.jactr.core.concurrent.ExecutorServices.java

/**
 * shutdown and wait for the shutdown of all the executors that are currently
 * installed. if millisecondsToWait is 0, it will wait indefinitely
 *//*w  ww .j  a  v a  2  s. c o m*/
static public void shutdown(long millisecondsToWait) {
    synchronized (_executors) {
        _isShuttingDown = true;
    }

    Collection<String> executorNames = new ArrayList<String>();
    getExecutorNames(executorNames);

    /*
     * issue shutdown
     */
    for (String name : executorNames) {
        ExecutorService executor = getExecutor(name);
        if (executor != null && !executor.isShutdown())
            executor.shutdown();
    }

    /*
     * and wait
     */
    long interval = 500;
    long abortAt = System.currentTimeMillis() + millisecondsToWait;
    if (millisecondsToWait == 0)
        abortAt = Long.MAX_VALUE;
    while (abortAt > System.currentTimeMillis() && executorNames.size() != 0) {
        for (String name : executorNames) {
            ExecutorService executor = getExecutor(name);
            if (executor != null)
                try {
                    if (executor.awaitTermination(interval, TimeUnit.MILLISECONDS))
                        removeExecutor(name);
                    else if (LOGGER.isDebugEnabled())
                        LOGGER.debug(name + " did not terminate after " + interval + "ms");
                } catch (Exception e) {
                    if (LOGGER.isWarnEnabled())
                        LOGGER.warn("Failed to terminate " + name, e);
                    removeExecutor(name);
                }
        }

        /*
         * get the current names again..
         */
        executorNames.clear();
        getExecutorNames(executorNames);
    }

    if (executorNames.size() != 0) {
        if (LOGGER.isWarnEnabled())
            LOGGER.warn("Forcing unresponsive executors to terminate " + executorNames + " after "
                    + millisecondsToWait + "ms");
        for (String name : executorNames) {
            ExecutorService executor = getExecutor(name);
            if (executor != null)
                executor.shutdownNow();
        }
    }

    synchronized (_executors) {
        _executors.clear();
        _isShuttingDown = false;
    }

}

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From source file:org.openengsb.connector.userprojects.ldap.internal.UserProjectsLdapServiceImplTest.java

private void assertCorrectlyStored(Assignment assignment)
        throws NoSuchNodeException, MissingParentException, LdapInvalidAttributeValueException {
    Entry entry = ldapDao.lookup(DnFactory.assignmentProject(assignment));
    assertThat(entry.get(SchemaConstants.STRING_ATTRIBUTE).getString(), is(assignment.getProject()));

    entry = ldapDao.lookup(DnFactory.assignmentUser(assignment));
    assertThat(entry.get(SchemaConstants.STRING_ATTRIBUTE).getString(), is(assignment.getUser()));

    List<Entry> entryList = ldapDao.getDirectChildren(DnFactory.assignmentPermissions(assignment));
    Collection<String> actualCollection = Lists.newArrayList();
    for (Entry entry2 : entryList) {
        actualCollection.add(entry2.getDn().getRdn().getValue().getString());
    }/*  w w  w.  j av a  2 s.  c om*/
    assertTrue(CollectionUtils.isEqualCollection(actualCollection, assignment.getPermissions()));

    entryList = ldapDao.getDirectChildren(DnFactory.assignmentRoles(assignment));
    actualCollection.clear();
    for (Entry entry2 : entryList) {
        actualCollection.add(entry2.getDn().getRdn().getValue().getString());
    }
    assertTrue(CollectionUtils.isEqualCollection(actualCollection, assignment.getRoles()));
}

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