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https://github.com/Alfresco/alfresco-community-repo.git
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19e3138e1c
- Single configuration entry point for JCR and non-JCR clients (i.e. application-context.xml) - Addition of build-war, incremental-war build targets (no deploy) - Remove build of JCR TCK war file by default git-svn-id: https://svn.alfresco.com/repos/alfresco-enterprise/alfresco/HEAD/root@2777 c4b6b30b-aa2e-2d43-bbcb-ca4b014f7261
125 lines
4.1 KiB
Java
125 lines
4.1 KiB
Java
/*
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* Copyright (C) 2005 Alfresco, Inc.
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*
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* Licensed under the Mozilla Public License version 1.1
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* with a permitted attribution clause. You may obtain a
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* copy of the License at
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*
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* http://www.alfresco.org/legal/license.txt
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*
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* Unless required by applicable law or agreed to in writing,
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* software distributed under the License is distributed on an
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* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND,
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* either express or implied. See the License for the specific
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* language governing permissions and limitations under the
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* License.
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*/
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package org.alfresco.jcr.query;
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import java.lang.reflect.Constructor;
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import java.util.HashMap;
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import java.util.Map;
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import javax.jcr.Node;
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import javax.jcr.RepositoryException;
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import javax.jcr.query.InvalidQueryException;
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import javax.jcr.query.Query;
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import javax.jcr.query.QueryManager;
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import org.alfresco.jcr.dictionary.JCRNamespace;
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import org.alfresco.jcr.session.SessionImpl;
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import org.alfresco.service.namespace.QName;
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/**
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* Alfresco implementation of JCR Query Manager
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*
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* @author David Caruana
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*/
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public class QueryManagerImpl implements QueryManager
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{
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public static QName JCRPATH_COLUMN = QName.createQName(JCRNamespace.JCR_URI, "path");
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public static QName JCRSCORE_COLUMN = QName.createQName(JCRNamespace.JCR_URI, "score");
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/** supported query languages */
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private static Map<String, Class<? extends QueryImpl>> supportedLanguages = new HashMap<String, Class<? extends QueryImpl>>();
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static
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{
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supportedLanguages.put(Query.XPATH, XPathQueryImpl.class);
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}
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private SessionImpl session;
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/**
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* Construct
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*
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* @param session session
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*/
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public QueryManagerImpl(SessionImpl session)
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{
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this.session = session;
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}
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/* (non-Javadoc)
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* @see javax.jcr.query.QueryManager#createQuery(java.lang.String, java.lang.String)
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*/
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public Query createQuery(String statement, String language) throws InvalidQueryException, RepositoryException
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{
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// is the language known?
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if (!isSupportedLanguage(language))
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{
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throw new InvalidQueryException("Query language " + language + " is not supported");
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}
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// construct the query
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Class<? extends QueryImpl> queryClass = supportedLanguages.get(language);
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try
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{
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Constructor<? extends QueryImpl> constructor = queryClass.getConstructor(new Class[] { SessionImpl.class, String.class } );
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QueryImpl queryImpl = constructor.newInstance(new Object[] { session, statement } );
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queryImpl.isValidStatement();
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return queryImpl.getProxy();
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}
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catch (InstantiationException e)
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{
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throw new RepositoryException("Failed to create query " + statement + " (language: " + language + ")");
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}
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catch (IllegalAccessException e)
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{
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throw new RepositoryException("Failed to create query " + statement + " (language: " + language + ")");
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}
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catch (Exception e)
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{
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throw new RepositoryException("Failed to create query " + statement + " (language: " + language + ")");
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}
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}
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/* (non-Javadoc)
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* @see javax.jcr.query.QueryManager#getQuery(javax.jcr.Node)
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*/
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public Query getQuery(Node node) throws InvalidQueryException, RepositoryException
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{
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throw new InvalidQueryException("Persistent queries are not supported by the Repository.");
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}
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/* (non-Javadoc)
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* @see javax.jcr.query.QueryManager#getSupportedQueryLanguages()
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*/
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public String[] getSupportedQueryLanguages() throws RepositoryException
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{
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return supportedLanguages.keySet().toArray(new String[supportedLanguages.size()]);
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}
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/**
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* Is supported language?
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*
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* @param language language to check
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* @return true => supported
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*/
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private boolean isSupportedLanguage(String language)
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{
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return supportedLanguages.containsKey(language);
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}
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}
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