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

   1 /*
   2  * Copyright (C) 2010 Mathieu Baudier <mbaudier@argeo.org>
   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
  17 package org.argeo.slc.jcr.dao;
  18
  19 import java.util.ArrayList;
  20 import java.util.List;
  21
  22 import javax.jcr.Node;
  23 import javax.jcr.NodeIterator;
  24 import javax.jcr.RepositoryException;
  25 import javax.jcr.query.Query;
  26
  27 import org.apache.commons.logging.Log;
  28 import org.apache.commons.logging.LogFactory;
  29 import org.argeo.jcr.JcrUtils;
  30 import org.argeo.slc.SlcException;
  31 import org.argeo.slc.dao.runtime.SlcAgentDescriptorDao;
  32 import org.argeo.slc.runtime.SlcAgentDescriptor;
  33
  34 public class SlcAgentDescriptorDaoJcr extends AbstractSlcJcrDao implements
  35                 SlcAgentDescriptorDao {
  36         private final static Log log = LogFactory
  37                         .getLog(SlcAgentDescriptorDaoJcr.class);
  38
  39         public void create(SlcAgentDescriptor slcAgentDescriptor) {
  40                 try {
  41                         nodeMapper.save(getSession(), basePath(slcAgentDescriptor),
  42                                         slcAgentDescriptor);
  43                         getSession().save();
  44                 } catch (RepositoryException e) {
  45                         throw new SlcException("Cannot import " + slcAgentDescriptor, e);
  46                 }
  47         }
  48
  49         public SlcAgentDescriptor getAgentDescriptor(String agentId) {
  50                 // TODO: optimize query
  51                 String queryString = "//agent[@uuid='" + agentId + "']";
  52                 Query query = createQuery(queryString, Query.XPATH);
  53                 Node node = JcrUtils.querySingleNode(query);
  54                 if (node == null)
  55                         return null;
  56                 return (SlcAgentDescriptor) nodeMapper.load(node);
  57         }
  58
  59         public void delete(SlcAgentDescriptor slcAgentDescriptor) {
  60                 try {
  61                         String queryString = "//agent[@uuid='"
  62                                         + slcAgentDescriptor.getUuid() + "']";
  63                         Query query = createQuery(queryString, Query.XPATH);
  64                         Node node = JcrUtils.querySingleNode(query);
  65                         if (node != null) {
  66                                 node.remove();
  67                                 getSession().save();
  68                         } else
  69                                 log.warn("No node found for agent descriptor: "
  70                                                 + slcAgentDescriptor);
  71                 } catch (RepositoryException e) {
  72                         throw new SlcException("Cannot delete " + slcAgentDescriptor, e);
  73                 }
  74
  75         }
  76
  77         public void delete(String agentId) {
  78                 try {
  79                         // TODO: optimize query
  80                         String queryString = "//agent[@uuid='" + agentId + "']";
  81                         Query query = createQuery(queryString, Query.XPATH);
  82                         Node node = JcrUtils.querySingleNode(query);
  83                         if (node != null)
  84                                 node.remove();
  85                 } catch (RepositoryException e) {
  86                         throw new SlcException("Cannot find AgentDescriptor" + agentId, e);
  87                 }
  88
  89         }
  90
  91         public List<SlcAgentDescriptor> listSlcAgentDescriptors() {
  92                 try {
  93                         String queryString = "//agent";
  94                         Query query = createQuery(queryString, Query.XPATH);
  95
  96                         List<SlcAgentDescriptor> listSad = new ArrayList<SlcAgentDescriptor>();
  97
  98                         NodeIterator ni = query.execute().getNodes();
  99                         while (ni.hasNext()) {
 100                                 Node curNode = (Node) ni.next();
 101                                 // JcrUtils.debug(curNode);
 102                                 listSad.add((SlcAgentDescriptor) nodeMapper.load(curNode));
 103                         }
 104
 105                         return listSad;
 106                 } catch (Exception e) {
 107                         throw new SlcException("Cannot load AgentDescriptorList", e);
 108                 }
 109         }
 110
 111 }