org.argeo.jcr/src/org/argeo/jcr/DefaultRepositoryRegister.java

   1 /*
   2  * Copyright (C) 2007-2012 Argeo GmbH
   3  *
   4  * Licensed under the Apache License, Version 2.0 (the "License");
   5  * you may not use this file except in compliance with the License.
   6  * You may obtain a copy of the License at
   7  *
   8  *         http://www.apache.org/licenses/LICENSE-2.0
   9  *
  10  * Unless required by applicable law or agreed to in writing, software
  11  * distributed under the License is distributed on an "AS IS" BASIS,
  12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  13  * See the License for the specific language governing permissions and
  14  * limitations under the License.
  15  */
  16 package org.argeo.jcr;
  17
  18 import java.util.Collections;
  19 import java.util.Map;
  20 import java.util.Observable;
  21 import java.util.TreeMap;
  22
  23 import javax.jcr.Repository;
  24 import javax.jcr.RepositoryException;
  25
  26 import org.apache.commons.logging.Log;
  27 import org.apache.commons.logging.LogFactory;
  28
  29 @Deprecated
  30 public class DefaultRepositoryRegister extends Observable implements
  31                 RepositoryRegister {
  32         // FIXME factorize with node
  33         /** Key for a JCR repository alias */
  34         public final static String JCR_REPOSITORY_ALIAS = "argeo.jcr.repository.alias";
  35         /** Key for a JCR repository URI */
  36         public final static String JCR_REPOSITORY_URI = "argeo.jcr.repository.uri";
  37         private final static Log log = LogFactory
  38                         .getLog(DefaultRepositoryRegister.class);
  39
  40         /** Read only map which will be directly exposed. */
  41         private Map<String, Repository> repositories = Collections
  42                         .unmodifiableMap(new TreeMap<String, Repository>());
  43
  44         @SuppressWarnings("rawtypes")
  45         public synchronized Repository getRepository(Map parameters)
  46                         throws RepositoryException {
  47                 if (!parameters.containsKey(JCR_REPOSITORY_ALIAS))
  48                         throw new RepositoryException("Parameter " + JCR_REPOSITORY_ALIAS
  49                                         + " has to be defined.");
  50                 String alias = parameters.get(JCR_REPOSITORY_ALIAS).toString();
  51                 if (!repositories.containsKey(alias))
  52                         throw new RepositoryException(
  53                                         "No repository registered with alias " + alias);
  54
  55                 return repositories.get(alias);
  56         }
  57
  58         /** Access to the read-only map */
  59         public synchronized Map<String, Repository> getRepositories() {
  60                 return repositories;
  61         }
  62
  63         /** Registers a service, typically called when OSGi services are bound. */
  64         @SuppressWarnings("rawtypes")
  65         public synchronized void register(Repository repository, Map properties) {
  66                 String alias;
  67                 if (properties == null || !properties.containsKey(JCR_REPOSITORY_ALIAS)) {
  68                         log.warn("Cannot register a repository if no "
  69                                         + JCR_REPOSITORY_ALIAS + " property is specified.");
  70                         return;
  71                 }
  72                 alias = properties.get(JCR_REPOSITORY_ALIAS).toString();
  73                 Map<String, Repository> map = new TreeMap<String, Repository>(
  74                                 repositories);
  75                 map.put(alias, repository);
  76                 repositories = Collections.unmodifiableMap(map);
  77                 setChanged();
  78                 notifyObservers(alias);
  79         }
  80
  81         /** Unregisters a service, typically called when OSGi services are unbound. */
  82         @SuppressWarnings("rawtypes")
  83         public synchronized void unregister(Repository repository, Map properties) {
  84                 // TODO: also check bean name?
  85                 if (properties == null || !properties.containsKey(JCR_REPOSITORY_ALIAS)) {
  86                         log.warn("Cannot unregister a repository without property "
  87                                         + JCR_REPOSITORY_ALIAS);
  88                         return;
  89                 }
  90
  91                 String alias = properties.get(JCR_REPOSITORY_ALIAS).toString();
  92                 Map<String, Repository> map = new TreeMap<String, Repository>(
  93                                 repositories);
  94                 if (map.remove(alias) == null) {
  95                         log.warn("No repository was registered with alias " + alias);
  96                         return;
  97                 }
  98                 repositories = Collections.unmodifiableMap(map);
  99                 setChanged();
 100                 notifyObservers(alias);
 101         }
 102 }