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34 package info.magnolia.cms.util;
35
36 import java.io.Serializable;
37
38 import javax.jcr.RepositoryException;
39
40 import info.magnolia.cms.core.Content;
41 import info.magnolia.cms.core.HierarchyManager;
42 import info.magnolia.cms.core.NodeData;
43 import info.magnolia.context.MgnlContext;
44
45 import org.slf4j.Logger;
46 import org.slf4j.LoggerFactory;
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48
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51
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53
54 public class LazyContentWrapper extends ContentWrapper implements Serializable {
55 private static final Logger log = LoggerFactory.getLogger(LazyContentWrapper.class);
56
57 private String repository;
58
59 private String uuid;
60
61 private transient Content node;
62
63 public LazyContentWrapper(String repository, String uuid) {
64 this.setRepository(repository);
65 this.setUuid(uuid);
66 }
67
68 public LazyContentWrapper(Content node) {
69 try {
70 this.setRepository(node.getWorkspace().getName());
71 } catch (RepositoryException e) {
72 log.error("can't read repository name from wrapping node", e);
73 }
74 this.setUuid(node.getUUID());
75 this.node = node;
76 }
77
78 public synchronized Content getWrappedContent() {
79 try {
80 if (node == null || !node.getJCRNode().getSession().isLive()) {
81 node = getHierarchyManager().getContentByUUID(getUuid());
82 }
83 } catch (RepositoryException e) {
84 log.error("can't reinitialize node " + getUuid(), e);
85 }
86 return node;
87 }
88
89 public HierarchyManager getHierarchyManager() {
90 return MgnlContext.getSystemContext().getHierarchyManager(getRepository());
91 }
92
93 @Override
94 public NodeData wrap(NodeData nodeData) {
95 return new LazyNodeDataWrapper(nodeData);
96 }
97
98 protected void setUuid(String uuid) {
99 this.uuid = uuid;
100 }
101
102 protected String getUuid() {
103 return uuid;
104 }
105
106 protected void setRepository(String repository) {
107 this.repository = repository;
108 }
109
110 protected String getRepository() {
111 return repository;
112 }
113
114 }