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34 package info.magnolia.cms.beans.config;
35
36 import info.magnolia.cms.core.Content;
37 import info.magnolia.cms.util.DeprecationUtil;
38 import info.magnolia.cms.util.ModuleConfigurationObservingManager;
39 import info.magnolia.event.EventBus;
40 import info.magnolia.event.SystemEventBus;
41 import info.magnolia.jcr.node2bean.Node2BeanProcessor;
42 import info.magnolia.jcr.util.NodeUtil;
43 import info.magnolia.module.ModuleRegistry;
44 import info.magnolia.module.ModulesStartedEvent;
45 import info.magnolia.objectfactory.Components;
46
47 import java.util.ArrayList;
48 import java.util.Collection;
49 import java.util.Collections;
50 import java.util.Iterator;
51 import java.util.List;
52 import java.util.concurrent.atomic.AtomicReference;
53
54 import javax.inject.Inject;
55 import javax.inject.Named;
56 import javax.inject.Singleton;
57 import javax.jcr.Node;
58 import javax.jcr.RepositoryException;
59
60 import org.apache.commons.lang3.StringUtils;
61 import org.slf4j.Logger;
62 import org.slf4j.LoggerFactory;
63
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71 @Singleton
72 public final class VirtualURIManager extends ModuleConfigurationObservingManager {
73
74 private static final Logger log = LoggerFactory.getLogger(VirtualURIManager.class);
75
76 public static final String FROM_URI_NODEDATANAME = "fromURI";
77
78 public static final String TO_URI_NODEDATANAME = "toURI";
79
80 private final Node2BeanProcessor nodeToBean;
81
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86 private final AtomicReference<List<VirtualURIMapping>> virtualUriMappings = new AtomicReference<List<VirtualURIMapping>>(new ArrayList<VirtualURIMapping>());
87
88 @Inject
89 public VirtualURIManager(ModuleRegistry moduleRegistry, Node2BeanProcessor nodeToBean, @Named(SystemEventBus.NAME) EventBus systemEventBus) {
90 super("virtualURIMapping", moduleRegistry);
91 this.nodeToBean = nodeToBean;
92 systemEventBus.addHandler(ModulesStartedEvent.class, new ModulesStartedEvent.Handler() {
93 @Override
94 public void onModuleStartupCompleted(ModulesStartedEvent event) {
95 VirtualURIManager.this.start();
96 }
97 });
98 }
99
100
101
102
103 public VirtualURIManager(Node2BeanProcessor nodeToBean) {
104 this(Components.getComponent(ModuleRegistry.class), nodeToBean, Components.getComponentWithAnnotation(EventBus.class, Components.named(SystemEventBus.NAME)));
105 }
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114 public String getURIMapping(String uri) {
115 return getURIMapping(uri, null);
116 }
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125
126 public String getURIMapping(String uri, String queryString) {
127 Iterator<VirtualURIMapping> e = virtualUriMappings.get().iterator();
128 String mappedURI = StringUtils.EMPTY;
129 int lastMatchedLevel = 0;
130 while (e.hasNext()) {
131 try {
132 VirtualURIMapping vm = e.next();
133 final VirtualURIMapping.MappingResult result;
134 if (queryString != null && vm instanceof QueryAwareVirtualURIMapping) {
135 result = ((QueryAwareVirtualURIMapping) vm).mapURI(uri, queryString);
136 } else {
137 result = vm.mapURI(uri);
138 }
139 if (result != null && lastMatchedLevel < result.getLevel()) {
140 lastMatchedLevel = result.getLevel();
141 mappedURI = result.getToURI();
142 }
143 } catch (ClassCastException ex) {
144 log.error("Virtual URI configuration error, mapping rule is skipped: {}", ex.getMessage(), ex);
145 }
146 }
147 return mappedURI;
148 }
149
150 @Override
151 protected void reload(List<Node> nodes) throws RepositoryException {
152 try {
153
154 final List<VirtualURIMapping> foundMappings = new ArrayList<VirtualURIMapping>();
155
156 for (Node node : nodes) {
157 for (Node child : NodeUtil.getNodes(node)) {
158 VirtualURIMapping virtualURIMapping = readVirtualURIMapping(child);
159 if (virtualURIMapping != null) {
160 foundMappings.add(virtualURIMapping);
161 }
162 }
163 }
164
165 this.virtualUriMappings.set(foundMappings);
166
167 } catch (Exception e) {
168 log.error("Failed to load VirtualURIMappings {}", e.getMessage(), e);
169 }
170 }
171
172 protected VirtualURIMapping readVirtualURIMapping(Node node) {
173 try {
174 log.info("Loading VirtualURIMapping from {}", node.getPath());
175 VirtualURIMapping virtualURIMapping = (VirtualURIMapping) nodeToBean.toBean(node, DefaultVirtualURIMapping.class);
176 log.debug("VirtualURIMapping loaded from {}", node.getPath());
177 return virtualURIMapping;
178 } catch (Exception e) {
179 log.error("Unable to read VirtualURIMapping from node [{}]", NodeUtil.getNodePathIfPossible(node), e);
180 return null;
181 }
182 }
183
184 public Collection<VirtualURIMapping> getURIMappings() {
185 return Collections.unmodifiableList(virtualUriMappings.get());
186 }
187
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190
191
192 @Deprecated
193 public static VirtualURIManager getInstance() {
194 return Components.getSingleton(VirtualURIManager.class);
195 }
196
197
198
199
200 @Deprecated
201 protected void onRegister(Content content) {
202 DeprecationUtil.isDeprecated("Use reload(java.util.List) instead");
203 try {
204 List<Node> observedNodes = getObservedNodes();
205 observedNodes.add(content.getJCRNode());
206 reload(observedNodes);
207 } catch (RepositoryException e) {
208 log.error("Failed to load VirtualURIMappings {}", e.getMessage(), e);
209 }
210 }
211 }