Alan Davis b4dbcde79d Merged HEAD-BUG-FIX to HEAD (4.2)
55487: Merged V4.1-BUG-FIX (4.1.7) to HEAD-BUG-FIX (4.2)
      54917: Follow up to fixes for MNT-9462:
       - Remove pattern where lock-try is in the try-finally block, thereby forcing conditional unlocking
         If the lock is not achieved, then the finally block is not needed so the try-lock can go outside.
       - Fixed lock upgrade to use check, upgrade and recheck; now it's less like the script of Inception


git-svn-id: https://svn.alfresco.com/repos/alfresco-enterprise/alfresco/HEAD/root@55776 c4b6b30b-aa2e-2d43-bbcb-ca4b014f7261
2013-09-20 20:44:54 +00:00

980 lines
34 KiB
Java

/*
* Copyright (C) 2005-2013 Alfresco Software Limited.
*
* This file is part of Alfresco
*
* Alfresco is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* Alfresco is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with Alfresco. If not, see <http://www.gnu.org/licenses/>.
*/
package org.alfresco.repo.i18n;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.Reader;
import java.text.MessageFormat;
import java.util.ArrayList;
import java.util.Enumeration;
import java.util.HashMap;
import java.util.HashSet;
import java.util.Iterator;
import java.util.List;
import java.util.Locale;
import java.util.Map;
import java.util.Properties;
import java.util.ResourceBundle;
import java.util.Set;
import java.util.concurrent.locks.Lock;
import java.util.concurrent.locks.ReadWriteLock;
import java.util.concurrent.locks.ReentrantReadWriteLock;
import org.alfresco.error.AlfrescoRuntimeException;
import org.alfresco.model.ContentModel;
import org.alfresco.repo.cache.SimpleCache;
import org.alfresco.repo.dictionary.RepositoryLocation;
import org.alfresco.repo.security.authentication.AuthenticationUtil;
import org.alfresco.repo.security.authentication.AuthenticationUtil.RunAsWork;
import org.alfresco.repo.tenant.TenantService;
import org.alfresco.repo.tenant.TenantUtil;
import org.alfresco.repo.tenant.TenantUtil.TenantRunAsWork;
import org.alfresco.service.cmr.repository.ChildAssociationRef;
import org.alfresco.service.cmr.repository.ContentReader;
import org.alfresco.service.cmr.repository.ContentService;
import org.alfresco.service.cmr.repository.NodeRef;
import org.alfresco.service.cmr.repository.NodeService;
import org.alfresco.service.cmr.repository.StoreRef;
import org.alfresco.service.namespace.NamespaceService;
import org.alfresco.service.namespace.QName;
import org.alfresco.service.namespace.RegexQNamePattern;
import org.alfresco.util.LockHelper;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.springframework.extensions.surf.util.I18NUtil;
/**
* Message Service to get localised messages/strings which have been loaded from resource bundles either dynamically
* deployed in the Repository and/or statically loaded from the Classpath.
*
* Also provides methods (delegated to core utility class) to access the Locale of the current thread.
*/
public class MessageServiceImpl implements MessageService
{
private static final Log logger = LogFactory.getLog(MessageServiceImpl.class);
public static final String PROPERTIES_FILE_SUFFIX = ".properties";
/**
* Lock objects
*/
private ReadWriteLock lock = new ReentrantReadWriteLock();
private Lock readLock = lock.readLock();
private Lock writeLock = lock.writeLock();
// dependencies
private TenantService tenantService;
private ContentService contentService;
private NamespaceService namespaceService;
private NodeService nodeService;
/**
* List of registered bundles
*/
private SimpleCache<String, Set<String>> resourceBundleBaseNamesCache;
/**
* Map of loaded bundles by Locale
*/
private SimpleCache<String, Map<Locale, Set<String>>> loadedResourceBundlesCache;
/**
* Map of cached messaged by Locale
*/
private SimpleCache<String, Map<Locale, Map<String, String>>> messagesCache;
private List<MessageDeployer> messageDeployers = new ArrayList<MessageDeployer>();
public void setNamespaceService(NamespaceService namespaceService)
{
this.namespaceService = namespaceService;
}
public void setNodeService(NodeService nodeService)
{
this.nodeService = nodeService;
}
public void setTenantService(TenantService tenantService)
{
this.tenantService = tenantService;
}
public void setContentService(ContentService contentService)
{
this.contentService = contentService;
}
public void setResourceBundleBaseNamesCache(SimpleCache<String, Set<String>> resourceBundleBaseNamesCache)
{
this.resourceBundleBaseNamesCache = resourceBundleBaseNamesCache;
}
public void setLoadedResourceBundlesCache(SimpleCache<String, Map<Locale, Set<String>>> loadedResourceBundlesCache)
{
this.loadedResourceBundlesCache = loadedResourceBundlesCache;
}
public void setMessagesCache(SimpleCache<String, Map<Locale, Map<String, String>>>messagesCache)
{
this.messagesCache = messagesCache;
}
public void setLocale(Locale locale)
{
I18NUtil.setLocale(locale);
}
public Locale getLocale()
{
return I18NUtil.getLocale();
}
public void setContentLocale(Locale locale)
{
I18NUtil.setContentLocale(locale);
}
public Locale getContentLocale()
{
return I18NUtil.getContentLocale();
}
public Locale getNearestLocale(Locale templateLocale, Set<Locale> options)
{
return I18NUtil.getNearestLocale(templateLocale, options);
}
public Locale parseLocale(String localeStr)
{
return I18NUtil.parseLocale(localeStr);
}
public void registerResourceBundle(String resBundlePath)
{
String tenantDomain = getTenantDomain();
Set<String> tenantResourceBundleBaseNames = null;
LockHelper.tryLock(readLock, 100);
try
{
tenantResourceBundleBaseNames = getResourceBundleBaseNames(tenantDomain);
}
finally
{
readLock.unlock();
}
LockHelper.tryLock(writeLock, 100);
try
{
if (! tenantResourceBundleBaseNames.contains(resBundlePath))
{
tenantResourceBundleBaseNames.add(resBundlePath);
}
logger.info("Registered message bundle '" + resBundlePath + "'");
clearLoadedResourceBundles(tenantDomain); // force re-load of message cache
}
finally
{
writeLock.unlock();
}
}
public String getMessage(String messageKey)
{
return getMessage(messageKey, getLocale());
}
public String getMessage(final String messageKey, final Locale locale)
{
String message = null;
// look for message, within context of tenant if applicable
Map<String, String> props = getLocaleProperties(locale);
if (props != null)
{
// get runtime/repo managed message (if it exists)
message = props.get(messageKey);
}
if (message == null)
{
if (tenantService.isTenantUser())
{
// tenant user, with no tenant-specific message
//look for non-tenant-specific message
message = AuthenticationUtil.runAs(new RunAsWork<String>()
{
public String doWork() throws Exception
{
String message = null;
Map<String, String> props = getLocaleProperties(locale);
if (props != null)
{
// get default runtime/repo managed message (if it exists)
message = props.get(messageKey);
}
return message;
}
}, AuthenticationUtil.getSystemUserName());
}
if (message == null)
{
// get default static message (if it exists)
message = I18NUtil.getMessage(tenantService.getBaseName(messageKey));
}
}
return message;
}
public String getMessage(String messageKey, Object ... params)
{
return getMessage(messageKey, getLocale(), params);
}
public String getMessage(String messageKey, Locale locale, Object ... params)
{
String message = getMessage(messageKey, locale);
if (message != null && params != null)
{
message = MessageFormat.format(message, params);
}
return message;
}
public void unregisterResourceBundle(String resBundlePath)
{
Map<Locale, Set<String>> loadedResourceBundlesForAllLocales;
Map<Locale, Map<String, String>> cachedMessagesForAllLocales;
Set<String> resourceBundleBaseNamesForAllLocales;
String tenantDomain = getTenantDomain();
LockHelper.tryLock(readLock, 100);
try
{
// all locales
loadedResourceBundlesForAllLocales = getLoadedResourceBundles(tenantDomain);
cachedMessagesForAllLocales = getMessages(tenantDomain);
resourceBundleBaseNamesForAllLocales = getResourceBundleBaseNames(tenantDomain);
}
finally
{
readLock.unlock();
}
LockHelper.tryLock(writeLock, 100);
try
{
// unload resource bundles for each locale (by tenant, if applicable)
if ((loadedResourceBundlesForAllLocales != null) && (cachedMessagesForAllLocales != null))
{
Iterator<Locale> itr = loadedResourceBundlesForAllLocales.keySet().iterator();
while (itr.hasNext())
{
Locale locale = itr.next();
Set<String> loadedBundles = loadedResourceBundlesForAllLocales.get(locale);
Map<String, String> props = cachedMessagesForAllLocales.get(locale);
if ((loadedBundles != null) && (props != null))
{
if (loadedBundles.contains(resBundlePath))
{
ResourceBundle resourcebundle = null;
int idx1 = resBundlePath.indexOf(StoreRef.URI_FILLER);
if (idx1 != -1)
{
// load from repository
int idx2 = resBundlePath.indexOf("/", idx1+3);
String store = resBundlePath.substring(0, idx2);
String path = resBundlePath.substring(idx2);
StoreRef storeRef = tenantService.getName(new StoreRef(store));
try
{
resourcebundle = getRepoResourceBundle(storeRef, path, locale);
}
catch (IOException ioe)
{
throw new AlfrescoRuntimeException("Failed to read message resource bundle from repository " + resBundlePath + " : " + ioe);
}
}
else
{
// load from classpath
resourcebundle = ResourceBundle.getBundle(resBundlePath, locale);
}
if (resourcebundle != null)
{
// unload from the cached messages
Enumeration<String> enumKeys = resourcebundle.getKeys();
while (enumKeys.hasMoreElements() == true)
{
String key = enumKeys.nextElement();
props.remove(key);
}
}
loadedBundles.remove(resBundlePath);
}
}
}
}
// unregister resource bundle
if (resourceBundleBaseNamesForAllLocales != null)
{
resourceBundleBaseNamesForAllLocales.remove(resBundlePath);
logger.info("Unregistered message bundle '" + resBundlePath + "'");
}
clearLoadedResourceBundles(tenantDomain); // force re-load of message cache
}
finally
{
writeLock.unlock();
}
}
/**
* Get the messages for a locale.
* <p>
* Will use cache where available otherwise will load into cache from bundles.
*
* @param locale the locale
* @return message map
*/
private Map<String, String> getLocaleProperties(Locale locale)
{
Set<String> loadedBundles = null;
Map<String, String> props = null;
int loadedBundleCount = 0;
String tenantDomain = getTenantDomain();
boolean init = false;
Map<Locale, Set<String>> tenantLoadedResourceBundles = null;
Map<Locale, Map<String, String>> tenantCachedMessages = null;
Set<String> tenantResourceBundleBaseNames = null;
LockHelper.tryLock(readLock, 100);
try
{
tenantLoadedResourceBundles = getLoadedResourceBundles(tenantDomain);
loadedBundles = tenantLoadedResourceBundles.get(locale);
tenantCachedMessages = getMessages(tenantDomain);
props = tenantCachedMessages.get(locale);
tenantResourceBundleBaseNames = getResourceBundleBaseNames(tenantDomain);
loadedBundleCount = tenantResourceBundleBaseNames.size();
}
finally
{
readLock.unlock();
}
if (loadedBundles == null)
{
LockHelper.tryLock(writeLock, 100);
try
{
loadedBundles = new HashSet<String>();
tenantLoadedResourceBundles.put(locale, loadedBundles);
init = true;
}
finally
{
writeLock.unlock();
}
}
if (props == null)
{
LockHelper.tryLock(writeLock, 100);
try
{
props = new HashMap<String, String>();
tenantCachedMessages.put(locale, props);
init = true;
}
finally
{
writeLock.unlock();
}
}
if ((loadedBundles.size() != loadedBundleCount) || (init == true))
{
LockHelper.tryLock(writeLock, 100);
try
{
// get registered resource bundles
Set<String> resBundleBaseNames = getResourceBundleBaseNames(tenantDomain);
int count = 0;
// load resource bundles for given locale (by tenant, if applicable)
for (String resBundlePath : resBundleBaseNames)
{
if (loadedBundles.contains(resBundlePath) == false)
{
ResourceBundle resourcebundle = null;
int idx1 = resBundlePath.indexOf(StoreRef.URI_FILLER);
if (idx1 != -1)
{
// load from repository
int idx2 = resBundlePath.indexOf("/", idx1+3);
String store = resBundlePath.substring(0, idx2);
String path = resBundlePath.substring(idx2);
StoreRef storeRef = tenantService.getName(new StoreRef(store));
try
{
resourcebundle = getRepoResourceBundle(storeRef, path, locale);
}
catch (IOException ioe)
{
throw new AlfrescoRuntimeException("Failed to read message resource bundle from repository " + resBundlePath + " : " + ioe);
}
}
else
{
// load from classpath
resourcebundle = ResourceBundle.getBundle(resBundlePath, locale);
}
if (resourcebundle != null)
{
Enumeration<String> enumKeys = resourcebundle.getKeys();
while (enumKeys.hasMoreElements() == true)
{
String key = enumKeys.nextElement();
props.put(key, resourcebundle.getString(key));
}
loadedBundles.add(resBundlePath);
count++;
}
}
}
logger.info("Message bundles (x " + count + ") loaded for locale " + locale);
}
finally
{
writeLock.unlock();
}
}
return props;
}
public ResourceBundle getRepoResourceBundle(
final StoreRef storeRef,
final String path,
final Locale locale) throws IOException
{
// TODO - need to replace basic strategy with a more complete
// search & instantiation strategy similar to ResourceBundle.getBundle()
// Consider search query with basename* and then apply strategy ...
// Avoid permission exceptions
RunAsWork<ResourceBundle> getBundleWork = new RunAsWork<ResourceBundle>()
{
@Override
public ResourceBundle doWork() throws Exception
{
NodeRef rootNode = nodeService.getRootNode(storeRef);
// first attempt - with locale
NodeRef nodeRef = getNode(rootNode, path+"_"+locale+PROPERTIES_FILE_SUFFIX);
if (nodeRef == null)
{
// second attempt - basename
nodeRef = getNode(rootNode, path+PROPERTIES_FILE_SUFFIX);
}
if (nodeRef == null)
{
logger.debug("Could not find message resource bundle " + storeRef + "/" + path);
return null;
}
ContentReader cr = contentService.getReader(nodeRef, ContentModel.PROP_CONTENT);
ResourceBundle resBundle = new MessagePropertyResourceBundle(
new InputStreamReader(cr.getContentInputStream(), cr.getEncoding()));
return resBundle;
}
};
return AuthenticationUtil.runAs(getBundleWork, AuthenticationUtil.getSystemUserName());
}
public void onEnableTenant()
{
// NOOP - refer to DictionaryRepositoryBootstrap
}
public void onDisableTenant()
{
destroy(); // will be called in context of tenant
}
public void init()
{
// initialise empty message service
String tenantDomain = getTenantDomain();
putResourceBundleBaseNames(tenantDomain, new HashSet<String>());
putLoadedResourceBundles(tenantDomain, new HashMap<Locale, Set<String>>());
putMessages(tenantDomain, new HashMap<Locale, Map<String, String>>());
logger.info("Empty message service initialised");
}
public void destroy()
{
// used by reset and also as callback when destroying tenant(s) during shutdown
String tenantDomain = getTenantDomain();
removeLoadedResourceBundles(tenantDomain);
removeMessages(tenantDomain);
removeResourceBundleBaseNames(tenantDomain);
logger.info("Messages cache destroyed (all locales)");
}
public Set<String> getRegisteredBundles()
{
LockHelper.tryLock(readLock, 100);
try
{
return getResourceBundleBaseNames(getTenantDomain());
}
finally
{
readLock.unlock();
}
}
private Set<String> getResourceBundleBaseNames(String tenantDomain)
{
// Assume a read lock is present
Set<String> resourceBundleBaseNames = resourceBundleBaseNamesCache.get(tenantDomain);
if (resourceBundleBaseNames != null)
{
return resourceBundleBaseNames;
}
// They are not there. Upgrade to the write lock.
readLock.unlock();
LockHelper.tryLock(writeLock, 100);
try
{
resourceBundleBaseNames = resourceBundleBaseNamesCache.get(tenantDomain);
if (resourceBundleBaseNames != null)
{
return resourceBundleBaseNames;
}
reset(tenantDomain); // reset caches - may have been invalidated (e.g. in a cluster)
resourceBundleBaseNames = resourceBundleBaseNamesCache.get(tenantDomain);
}
finally
{
writeLock.unlock();
LockHelper.tryLock(readLock, 100);
}
if (resourceBundleBaseNames == null)
{
// unexpected
throw new AlfrescoRuntimeException("Failed to re-initialise resourceBundleBaseNamesCache " + tenantDomain);
}
// Done
return resourceBundleBaseNames;
}
private void putResourceBundleBaseNames(String tenantDomain, Set<String> resourceBundleBaseNames)
{
resourceBundleBaseNamesCache.put(tenantDomain, resourceBundleBaseNames);
}
private void removeResourceBundleBaseNames(String tenantDomain)
{
if (resourceBundleBaseNamesCache.get(tenantDomain) != null)
{
resourceBundleBaseNamesCache.get(tenantDomain).clear();
resourceBundleBaseNamesCache.remove(tenantDomain);
}
}
private Map<Locale, Set<String>> getLoadedResourceBundles(String tenantDomain)
{
// Assume a read lock is present
Map<Locale, Set<String>> loadedResourceBundles = loadedResourceBundlesCache.get(tenantDomain);
if (loadedResourceBundles != null)
{
return loadedResourceBundles;
}
// Not present. Upgrade to write lock.
readLock.unlock();
LockHelper.tryLock(writeLock, 100);
try
{
loadedResourceBundles = loadedResourceBundlesCache.get(tenantDomain);
if (loadedResourceBundles != null)
{
return loadedResourceBundles;
}
reset(tenantDomain); // reset caches - may have been invalidated (e.g. in a cluster)
loadedResourceBundles = loadedResourceBundlesCache.get(tenantDomain);
}
finally
{
writeLock.unlock();
LockHelper.tryLock(readLock, 100);
}
if (loadedResourceBundles == null)
{
// unexpected
throw new AlfrescoRuntimeException("Failed to re-initialise loadedResourceBundlesCache " + tenantDomain);
}
// Done
return loadedResourceBundles;
}
private void putLoadedResourceBundles(String tenantDomain, Map<Locale, Set<String>> loadedResourceBundles)
{
loadedResourceBundlesCache.put(tenantDomain, loadedResourceBundles);
}
private void removeLoadedResourceBundles(String tenantDomain)
{
if (loadedResourceBundlesCache.get(tenantDomain) != null)
{
loadedResourceBundlesCache.get(tenantDomain).clear();
loadedResourceBundlesCache.remove(tenantDomain);
}
}
private void clearLoadedResourceBundles(String tenantDomain)
{
if (loadedResourceBundlesCache.get(tenantDomain) != null)
{
loadedResourceBundlesCache.get(tenantDomain).clear();
}
}
private Map<Locale, Map<String, String>> getMessages(String tenantDomain)
{
// Assume a read lock
Map<Locale, Map<String, String>> messages = messagesCache.get(tenantDomain);
if (messages != null)
{
return messages;
}
// Need to create it. Upgrade to write lock.
readLock.unlock();
LockHelper.tryLock(writeLock, 100);
try
{
messages = messagesCache.get(tenantDomain);
if (messages != null)
{
return messages;
}
reset(tenantDomain); // reset caches - may have been invalidated (e.g. in a cluster)
messages = messagesCache.get(tenantDomain);
}
finally
{
writeLock.unlock();
LockHelper.tryLock(readLock, 100);
}
if (messages == null)
{
// unexpected
throw new AlfrescoRuntimeException("Failed to re-initialise messagesCache " + tenantDomain);
}
// Done
return messages;
}
private void putMessages(String tenantDomain, Map<Locale, Map<String, String>> messages)
{
messagesCache.put(tenantDomain, messages);
}
private void removeMessages(String tenantDomain)
{
if (messagesCache.get(tenantDomain) != null)
{
messagesCache.get(tenantDomain).clear();
messagesCache.remove(tenantDomain);
}
}
// local helper - returns tenant domain (or empty string if default non-tenant)
private String getTenantDomain()
{
return tenantService.getCurrentUserDomain();
}
public void register(MessageDeployer messageDeployer)
{
if (! messageDeployers.contains(messageDeployer))
{
messageDeployers.add(messageDeployer);
}
}
/**
* Resets the message service
*/
public void reset()
{
reset(getTenantDomain());
}
private void reset(String tenantDomain)
{
if (logger.isDebugEnabled())
{
logger.debug("Resetting messages ...");
}
TenantUtil.runAsSystemTenant(new TenantRunAsWork<Object>()
{
public Object doWork()
{
destroy();
init();
for (final MessageDeployer messageDeployer : messageDeployers)
{
messageDeployer.initMessages();
}
return null;
}
}, tenantDomain);
if (logger.isDebugEnabled())
{
logger.debug("... resetting messages completed");
}
}
/**
* Message Resource Bundle
*
* Custom message property resource bundle, to overcome known limitation of JDK 5.0 (and lower).
*
* http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=6204853
*
* Note: JDK 6.0 provides the ability to construct a PropertyResourceBundle from a Reader.
*/
private class MessagePropertyResourceBundle extends ResourceBundle
{
private Properties properties = new Properties();
public MessagePropertyResourceBundle(Reader reader) throws IOException
{
try
{
BufferedReader br = new BufferedReader(reader);
String line = br.readLine();
while (line != null)
{
if ((line.length() > 0) && (line.charAt(0) != '#'))
{
String[] splits = line.split("=", 2);
if (splits.length == 2)
{
properties.put(splits[0], splits[1]);
}
else if (splits.length == 1)
{
properties.put(splits[0], "");
}
else
{
logger.warn("Unexpected message properties file format: " + line);
throw new AlfrescoRuntimeException("Unexpected message properties file format: " + line);
}
}
line = br.readLine();
}
}
finally
{
reader.close();
}
}
@Override
public Enumeration<String> getKeys()
{
List<String> keys = new ArrayList<String>();
Enumeration<Object> enums = properties.keys();
while (enums.hasMoreElements())
{
keys.add((String)enums.nextElement());
}
return new StringIteratorEnumeration(keys.iterator());
}
@Override
protected Object handleGetObject(String arg0)
{
return properties.get(arg0);
}
private class StringIteratorEnumeration implements Enumeration<String>
{
private Iterator<String> enums;
public StringIteratorEnumeration(Iterator<String> enums)
{
this.enums = enums;
}
public boolean hasMoreElements()
{
return enums.hasNext();
}
public String nextElement()
{
return enums.next();
}
}
}
public String getBaseBundleName(String resourceName)
{
// convert resource file name to a resource bundle basename
// e.g. either 'workflow_fr_FR.properties' or 'workflow.properties' should be converted to 'workflow'
// note: this assumes that the baseName itself does not contain underscore !
String bundleBaseName = resourceName;
int idx = resourceName.indexOf("_");
if (idx > 0)
{
bundleBaseName = resourceName.substring(0, idx);
}
else
{
int idx1 = resourceName.indexOf(".");
if (idx1 > 0)
{
bundleBaseName = resourceName.substring(0, idx1);
}
}
return bundleBaseName;
}
protected NodeRef getNode(NodeRef rootNodeRef, String path)
{
RepositoryLocation repositoryLocation = new RepositoryLocation(rootNodeRef.getStoreRef(), path, RepositoryLocation.LANGUAGE_PATH);
String[] pathElements = repositoryLocation.getPathElements();
NodeRef nodeRef = rootNodeRef;
if (pathElements.length > 0)
{
nodeRef = resolveQNamePath(rootNodeRef, pathElements);
}
return nodeRef;
}
// TODO refactor (see also DictionaryRepositoryBootstrap)
protected NodeRef resolveQNamePath(NodeRef rootNodeRef, String[] pathPrefixQNameStrings)
{
if (pathPrefixQNameStrings.length == 0)
{
throw new IllegalArgumentException("Path array is empty");
}
// walk the path
NodeRef parentNodeRef = rootNodeRef;
for (int i = 0; i < pathPrefixQNameStrings.length; i++)
{
String pathPrefixQNameString = pathPrefixQNameStrings[i];
QName pathQName = null;
if (AuthenticationUtil.isMtEnabled())
{
String[] parts = QName.splitPrefixedQName(pathPrefixQNameString);
if ((parts.length == 2) && (parts[0].equals(NamespaceService.APP_MODEL_PREFIX)))
{
String pathUriQNameString = new StringBuilder(64).
append(QName.NAMESPACE_BEGIN).
append(NamespaceService.APP_MODEL_1_0_URI).
append(QName.NAMESPACE_END).
append(parts[1]).toString();
pathQName = QName.createQName(pathUriQNameString);
}
else
{
pathQName = QName.createQName(pathPrefixQNameString, namespaceService);
}
}
else
{
pathQName = QName.createQName(pathPrefixQNameString, namespaceService);
}
List<ChildAssociationRef> childAssocRefs = nodeService.getChildAssocs(parentNodeRef, RegexQNamePattern.MATCH_ALL, pathQName);
if (childAssocRefs.size() != 1)
{
return null;
}
parentNodeRef = childAssocRefs.get(0).getChildRef();
}
return parentNodeRef;
}
}