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1   /**
2    *
3    *  Licensed to the Apache Software Foundation (ASF) under one or more
4    *  contributor license agreements.  See the NOTICE file distributed with
5    *  this work for additional information regarding copyright ownership.
6    *  The ASF licenses this file to You under the Apache License, Version 2.0
7    *  (the "License"); you may not use this file except in compliance with
8    *  the License.  You may obtain a copy of the License at
9    *
10   *     http://www.apache.org/licenses/LICENSE-2.0
11   *
12   *  Unless required by applicable law or agreed to in writing, software
13   *  distributed under the License is distributed on an "AS IS" BASIS,
14   *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
15   *  See the License for the specific language governing permissions and
16   *  limitations under the License.
17   */
18  
19  package org.apache.geronimo.naming.deployment;
20  
21  import java.util.Set;
22  import java.util.HashSet;
23  import java.util.Arrays;
24  import java.util.Map;
25  
26  import javax.xml.namespace.QName;
27  
28  import org.apache.xmlbeans.XmlObject;
29  import org.apache.xmlbeans.QNameSet;
30  import org.apache.geronimo.kernel.repository.Environment;
31  import org.apache.geronimo.kernel.config.Configuration;
32  import org.apache.geronimo.kernel.GBeanNotFoundException;
33  import org.apache.geronimo.kernel.ClassLoading;
34  import org.apache.geronimo.naming.reference.GBeanReference;
35  import org.apache.geronimo.xbeans.geronimo.naming.GerGbeanRefDocument;
36  import org.apache.geronimo.xbeans.geronimo.naming.GerGbeanRefType;
37  import org.apache.geronimo.xbeans.geronimo.naming.GerPatternType;
38  import org.apache.geronimo.common.DeploymentException;
39  import org.apache.geronimo.gbean.AbstractNameQuery;
40  import org.apache.geronimo.gbean.GBeanData;
41  import org.apache.geronimo.gbean.GBeanInfo;
42  import org.apache.geronimo.gbean.GBeanInfoBuilder;
43  import org.apache.geronimo.j2ee.j2eeobjectnames.NameFactory;
44  import org.apache.geronimo.j2ee.deployment.Module;
45  import org.apache.geronimo.j2ee.deployment.NamingBuilder;
46  
47  /**
48   * @version $Rev: 470597 $ $Date: 2006-11-02 15:30:55 -0800 (Thu, 02 Nov 2006) $
49   */
50  public class GBeanRefBuilder implements NamingBuilder {
51      private static final QName GBEAN_REF_QNAME = GerGbeanRefDocument.type.getDocumentElementName();
52      private static final QNameSet GBEAN_REF_QNAME_SET = QNameSet.singleton(GBEAN_REF_QNAME);
53  
54      public void buildEnvironment(XmlObject specDD, XmlObject plan, Environment environment) {
55      }
56  
57      public void initContext(XmlObject specDD, XmlObject plan, Configuration localConfiguration, Configuration remoteConfiguration, Module module) throws DeploymentException {
58      }
59  
60      public void buildNaming(XmlObject specDD, XmlObject plan, Configuration localConfiguration, Configuration remoteConfiguration, Module module, Map componentContext) throws DeploymentException {
61          if (plan == null) {
62              return;
63          }
64          XmlObject[] gbeanRefsUntyped = plan == null? NO_REFS: plan.selectChildren(GBEAN_REF_QNAME_SET);
65          for (int i = 0; i < gbeanRefsUntyped.length; i++) {
66              XmlObject gbeanRefUntyped = gbeanRefsUntyped[i];
67              GerGbeanRefType gbeanRef = (GerGbeanRefType) gbeanRefUntyped.copy().changeType(GerGbeanRefType.type);
68              if (gbeanRef == null) {
69                  throw new DeploymentException("Could not read gbeanRef " + gbeanRefUntyped + " as the correct xml type");
70              }
71              GerPatternType[] gbeanLocatorArray = gbeanRef.getPatternArray();
72  
73              String[] interfaceTypesArray = gbeanRef.getRefTypeArray();
74              Set interfaceTypes = new HashSet(Arrays.asList(interfaceTypesArray));
75              Set queries = new HashSet();
76              for (int j = 0; j < gbeanLocatorArray.length; j++) {
77                  GerPatternType patternType = gbeanLocatorArray[j];
78                  AbstractNameQuery abstractNameQuery = ENCConfigBuilder.buildAbstractNameQuery(patternType, null, null, interfaceTypes);
79                  queries.add(abstractNameQuery);
80              }
81  
82              GBeanData gBeanData;
83              try {
84                  gBeanData = localConfiguration.findGBeanData(queries);
85              } catch (GBeanNotFoundException e) {
86                  throw new DeploymentException("Could not resolve reference at deploy time for queries " + queries, e);
87              }
88  
89              if (interfaceTypes.isEmpty()) {
90                  interfaceTypes.add(gBeanData.getGBeanInfo().getClassName());
91              }
92              ClassLoader cl = module.getEarContext().getClassLoader();
93              Class gBeanType;
94              try {
95                  gBeanType = ClassLoading.loadClass(gBeanData.getGBeanInfo().getClassName(), cl);
96              } catch (ClassNotFoundException e) {
97                  throw new DeploymentException("Cannot load GBean class", e);
98              }
99  
100             String refName = gbeanRef.getRefName();
101 
102             ((Map)componentContext.get(JNDI_KEY)).put(ENV + refName, new GBeanReference(localConfiguration.getId(), queries, gBeanType));
103 
104         }
105     }
106 
107     public QNameSet getSpecQNameSet() {
108         return QNameSet.EMPTY;
109     }
110 
111     public QNameSet getPlanQNameSet() {
112         return GBEAN_REF_QNAME_SET;
113     }
114 
115     public static final GBeanInfo GBEAN_INFO;
116 
117     static {
118         GBeanInfoBuilder infoBuilder = GBeanInfoBuilder.createStatic(GBeanRefBuilder.class, NameFactory.MODULE_BUILDER);
119 
120         GBEAN_INFO = infoBuilder.getBeanInfo();
121     }
122 
123     public static GBeanInfo getGBeanInfo() {
124         return GBEAN_INFO;
125     }
126 
127 }