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34 package info.magnolia.rest.reference.jcr;
35
36 import info.magnolia.context.Context;
37 import info.magnolia.jcr.util.PropertyUtil;
38 import info.magnolia.rest.delivery.jcr.decorator.ReadOnlyNode;
39 import info.magnolia.rest.reference.ReferenceResolver;
40 import info.magnolia.rest.reference.ReferenceResolverDefinition;
41
42 import java.util.ArrayList;
43 import java.util.Collections;
44 import java.util.List;
45 import java.util.Optional;
46
47 import javax.inject.Inject;
48 import javax.inject.Provider;
49 import javax.jcr.Node;
50 import javax.jcr.Property;
51 import javax.jcr.RepositoryException;
52 import javax.jcr.Session;
53
54 import org.slf4j.Logger;
55 import org.slf4j.LoggerFactory;
56
57
58
59
60 public class UuidReferenceResolver implements ReferenceResolver<Property, Node> {
61
62 private static final Logger log = LoggerFactory.getLogger(UuidReferenceResolver.class);
63 private final Provider<Context> contextProvider;
64 private final ReferenceResolverDefinition definition;
65
66 @Inject
67 public UuidReferenceResolver(Provider<Context> contextProvider, ReferenceResolverDefinition definition) {
68 this.contextProvider = contextProvider;
69 this.definition = definition;
70 }
71
72 @Override
73 public Optional<Node> resolve(Property item) {
74 try {
75 Session session = contextProvider.get().getJCRSession(definition.getTargetWorkspace());
76 if (item.isMultiple() && item.getValues() != null) {
77 List<Node> nodes = new ArrayList<>();
78 for (String uuid : PropertyUtil.getValuesStringList(item.getValues())) {
79 nodes.add(session.getNodeByIdentifier(uuid));
80 }
81
82 return Optional.of(new ReadOnlyNode(item.getName(), item.getParent(), nodes, Collections.emptyList()));
83 }
84
85 return Optional.of(session.getNodeByIdentifier(item.getString()));
86 } catch (RepositoryException e) {
87 log.warn("Error on resolving item {}", item, e);
88 }
89
90 return Optional.empty();
91 }
92 }