runtime/org.argeo.slc.support.jcr/src/main/java/org/argeo/slc/jcr/dao/SlcAgentDescriptorDaoJcr.java

   1 /*
   2  * Copyright (C) 2007-2012 Mathieu Baudier
   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.slc.jcr.dao;
  17
  18 import java.util.ArrayList;
  19 import java.util.List;
  20
  21 import javax.jcr.Node;
  22 import javax.jcr.NodeIterator;
  23 import javax.jcr.RepositoryException;
  24 import javax.jcr.query.Query;
  25
  26 import org.apache.commons.logging.Log;
  27 import org.apache.commons.logging.LogFactory;
  28 import org.argeo.jcr.JcrUtils;
  29 import org.argeo.slc.SlcException;
  30 import org.argeo.slc.dao.runtime.SlcAgentDescriptorDao;
  31 import org.argeo.slc.runtime.SlcAgentDescriptor;
  32
  33 public class SlcAgentDescriptorDaoJcr extends AbstractSlcJcrDao implements
  34                 SlcAgentDescriptorDao {
  35         private final static Log log = LogFactory
  36                         .getLog(SlcAgentDescriptorDaoJcr.class);
  37
  38         public void create(SlcAgentDescriptor slcAgentDescriptor) {
  39                 try {
  40                         nodeMapper.save(getSession(), basePath(slcAgentDescriptor),
  41                                         slcAgentDescriptor);
  42                         getSession().save();
  43                 } catch (RepositoryException e) {
  44                         throw new SlcException("Cannot import " + slcAgentDescriptor, e);
  45                 }
  46         }
  47
  48         public SlcAgentDescriptor getAgentDescriptor(String agentId) {
  49                 // TODO: optimize query
  50                 String queryString = "//agent[@uuid='" + agentId + "']";
  51                 Query query = createQuery(queryString, Query.XPATH);
  52                 Node node = JcrUtils.querySingleNode(query);
  53                 if (node == null)
  54                         return null;
  55                 return (SlcAgentDescriptor) nodeMapper.load(node);
  56         }
  57
  58         public void delete(SlcAgentDescriptor slcAgentDescriptor) {
  59                 try {
  60                         String queryString = "//agent[@uuid='"
  61                                         + slcAgentDescriptor.getUuid() + "']";
  62                         Query query = createQuery(queryString, Query.XPATH);
  63                         Node node = JcrUtils.querySingleNode(query);
  64                         if (node != null) {
  65                                 node.remove();
  66                                 getSession().save();
  67                         } else
  68                                 log.warn("No node found for agent descriptor: "
  69                                                 + slcAgentDescriptor);
  70                 } catch (RepositoryException e) {
  71                         throw new SlcException("Cannot delete " + slcAgentDescriptor, e);
  72                 }
  73
  74         }
  75
  76         public void delete(String agentId) {
  77                 try {
  78                         // TODO: optimize query
  79                         String queryString = "//agent[@uuid='" + agentId + "']";
  80                         Query query = createQuery(queryString, Query.XPATH);
  81                         Node node = JcrUtils.querySingleNode(query);
  82                         if (node != null)
  83                                 node.remove();
  84                 } catch (RepositoryException e) {
  85                         throw new SlcException("Cannot find AgentDescriptor" + agentId, e);
  86                 }
  87
  88         }
  89
  90         public List<SlcAgentDescriptor> listSlcAgentDescriptors() {
  91                 try {
  92                         String queryString = "//agent";
  93                         Query query = createQuery(queryString, Query.XPATH);
  94
  95                         List<SlcAgentDescriptor> listSad = new ArrayList<SlcAgentDescriptor>();
  96
  97                         NodeIterator ni = query.execute().getNodes();
  98                         while (ni.hasNext()) {
  99                                 Node curNode = (Node) ni.next();
 100                                 // JcrUtils.debug(curNode);
 101                                 listSad.add((SlcAgentDescriptor) nodeMapper.load(curNode));
 102                         }
 103
 104                         return listSad;
 105                 } catch (Exception e) {
 106                         throw new SlcException("Cannot load AgentDescriptorList", e);
 107                 }
 108         }
 109
 110 }