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34 package info.magnolia.cms.util;
35
36 import info.magnolia.cms.core.Content;
37 import info.magnolia.cms.core.HierarchyManager;
38 import info.magnolia.cms.core.NodeData;
39 import info.magnolia.context.MgnlContext;
40
41 import java.io.Serializable;
42
43 import javax.jcr.RepositoryException;
44
45 import org.slf4j.Logger;
46 import org.slf4j.LoggerFactory;
47
48
49
50
51
52 public class LazyContentWrapper extends ContentWrapper implements Serializable {
53 private static final Logger log = LoggerFactory.getLogger(LazyContentWrapper.class);
54
55 private String repository;
56
57 private String uuid;
58
59 private transient Content node;
60
61 public LazyContentWrapper(String repository, String uuid) {
62 this.setRepository(repository);
63 this.setUuid(uuid);
64 }
65
66 public LazyContentWrapper(Content node) {
67 try {
68 this.setRepository(node.getWorkspace().getName());
69 } catch (RepositoryException e) {
70 log.error("can't read repository name from wrapping node", e);
71 }
72 this.setUuid(node.getUUID());
73 this.node = node;
74 }
75
76 @Override
77 public synchronized Content getWrappedContent() {
78 try {
79 if (node == null || !node.getJCRNode().getSession().isLive()) {
80 node = getHierarchyManager().getContentByUUID(getUuid());
81 }
82 } catch (RepositoryException e) {
83 log.error("can't reinitialize node {}", getUuid(), e);
84 }
85 return node;
86 }
87
88 @Override
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 }