| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| */ |
| package org.apache.sling.jcr.resource.internal.helper.jcr; |
| |
| import static org.apache.jackrabbit.JcrConstants.JCR_CONTENT; |
| import static org.apache.jackrabbit.JcrConstants.JCR_CREATED; |
| import static org.apache.jackrabbit.JcrConstants.JCR_DATA; |
| import static org.apache.jackrabbit.JcrConstants.JCR_ENCODING; |
| import static org.apache.jackrabbit.JcrConstants.JCR_LASTMODIFIED; |
| import static org.apache.jackrabbit.JcrConstants.JCR_MIMETYPE; |
| import static org.apache.jackrabbit.JcrConstants.NT_FILE; |
| |
| import java.util.Collection; |
| import java.util.Map; |
| import java.util.Set; |
| |
| import javax.jcr.Item; |
| import javax.jcr.Node; |
| import javax.jcr.Property; |
| import javax.jcr.RepositoryException; |
| import javax.jcr.ValueFormatException; |
| |
| import org.apache.sling.api.resource.ResourceMetadata; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| class JcrNodeResourceMetadata extends ResourceMetadata { |
| |
| private static final long serialVersionUID = 1L; |
| |
| /** default log */ |
| private static final Logger LOGGER = LoggerFactory.getLogger(JcrNodeResource.class); |
| |
| private final Node node; |
| private Node contentNode; |
| private boolean nodePromotionChecked = false; |
| private long creationTime = -1; |
| private boolean populated = false; |
| |
| public JcrNodeResourceMetadata(final Node inNode) { |
| this.node = inNode; |
| } |
| |
| private Node promoteNode() { |
| // check stuff for nt:file nodes |
| try { |
| if ( (!nodePromotionChecked) && node.isNodeType(NT_FILE)) { |
| creationTime = node.getProperty(JCR_CREATED).getLong(); |
| |
| // continue our stuff with the jcr:content node |
| // which might be nt:resource, which we support below |
| // if the node is new, the content node might not exist yet |
| if (!node.isNew() || node.hasNode(JCR_CONTENT) ) { |
| contentNode = node.getNode(JCR_CONTENT); |
| } |
| nodePromotionChecked = true; |
| } |
| } catch (final RepositoryException re) { |
| report(re); |
| } |
| return contentNode != null ? contentNode : node; |
| } |
| |
| private void report(final RepositoryException re) { |
| String nodePath = "<unknown node path>"; |
| try { |
| nodePath = contentNode != null ? contentNode.getPath() : node.getPath(); |
| } catch (RepositoryException e) { |
| // ignore |
| } |
| LOGGER.info( |
| "setMetaData: Problem extracting metadata information for " |
| + nodePath, re); |
| } |
| |
| @Override |
| public Object get(final Object key) { |
| final Object result = super.get(key); |
| if (result != null) { |
| return result; |
| } |
| |
| if (CREATION_TIME.equals(key)) { |
| promoteNode(); |
| internalPut(CREATION_TIME, creationTime); |
| return creationTime; |
| } else if (CONTENT_TYPE.equals(key)) { |
| String contentType = null; |
| final Node targetNode = promoteNode(); |
| try { |
| if (targetNode.hasProperty(JCR_MIMETYPE)) { |
| contentType = targetNode.getProperty(JCR_MIMETYPE).getString(); |
| } |
| } catch (final RepositoryException re) { |
| report(re); |
| } |
| |
| internalPut(CONTENT_TYPE, contentType); |
| return contentType; |
| } else if (CHARACTER_ENCODING.equals(key)) { |
| String characterEncoding = null; |
| final Node targetNode = promoteNode(); |
| try { |
| if (targetNode.hasProperty(JCR_ENCODING)) { |
| characterEncoding = targetNode.getProperty(JCR_ENCODING).getString(); |
| } |
| } catch (final RepositoryException re) { |
| report(re); |
| } |
| internalPut(CHARACTER_ENCODING, characterEncoding); |
| return characterEncoding; |
| } else if (MODIFICATION_TIME.equals(key)) { |
| long modificationTime = -1; |
| final Node targetNode = promoteNode(); |
| try { |
| if (targetNode.hasProperty(JCR_LASTMODIFIED)) { |
| // We don't check node type, so JCR_LASTMODIFIED might not be a long |
| final Property prop = targetNode.getProperty(JCR_LASTMODIFIED); |
| try { |
| modificationTime = prop.getLong(); |
| } catch (final ValueFormatException vfe) { |
| LOGGER.debug("Property {} cannot be converted to a long, ignored ({})", |
| prop.getPath(), vfe); |
| } |
| } |
| } catch (final RepositoryException re) { |
| report(re); |
| } |
| internalPut(MODIFICATION_TIME, modificationTime); |
| return modificationTime; |
| } else if (CONTENT_LENGTH.equals(key)) { |
| long contentLength = -1; |
| final Node targetNode = promoteNode(); |
| try { |
| // if the node has a jcr:data property, use that property |
| if (targetNode.hasProperty(JCR_DATA)) { |
| final Property prop = targetNode.getProperty(JCR_DATA); |
| contentLength = JcrItemResource.getContentLength(prop); |
| } else { |
| // otherwise try to follow default item trail |
| Item item = getPrimaryItem(targetNode); |
| while (item != null && item.isNode()) { |
| item = getPrimaryItem((Node) item); |
| } |
| if ( item != null ) { |
| final Property data = (Property) item; |
| |
| // set the content length property as a side effect |
| // for resources which are not nt:file based and whose |
| // data is not in jcr:content/jcr:data this will lazily |
| // set the correct content length |
| contentLength = JcrItemResource.getContentLength(data); |
| } |
| } |
| } catch (final RepositoryException re) { |
| report(re); |
| } |
| internalPut(CONTENT_LENGTH, contentLength); |
| return contentLength; |
| } |
| return null; |
| } |
| |
| private Item getPrimaryItem(final Node node) |
| throws RepositoryException { |
| String name = node.getPrimaryNodeType().getPrimaryItemName(); |
| if (name == null) { |
| return null; |
| } |
| if (node.hasProperty(name)) { |
| return node.getProperty(name); |
| } else if (node.hasNode(name)) { |
| return node.getNode(name); |
| } else { |
| return null; |
| } |
| } |
| |
| private void populate() { |
| if (populated) { |
| return; |
| } |
| get(CREATION_TIME); |
| get(CONTENT_TYPE); |
| get(CHARACTER_ENCODING); |
| get(MODIFICATION_TIME); |
| get(CONTENT_LENGTH); |
| populated = true; |
| } |
| |
| @Override |
| public Set<Map.Entry<String, Object>> entrySet() { |
| populate(); |
| return super.entrySet(); |
| } |
| |
| @Override |
| public Set<String> keySet() { |
| populate(); |
| return super.keySet(); |
| } |
| |
| @Override |
| public Collection<Object> values() { |
| populate(); |
| return super.values(); |
| } |
| |
| @Override |
| public int size() { |
| populate(); |
| return super.size(); |
| } |
| |
| @Override |
| public boolean isEmpty() { |
| return false; |
| } |
| |
| @Override |
| public boolean containsKey(final Object key) { |
| if (super.containsKey(key)) { |
| return true; |
| } |
| if (CREATION_TIME.equals(key) || |
| CONTENT_TYPE.equals(key) || |
| CHARACTER_ENCODING.equals(key) || |
| MODIFICATION_TIME.equals(key) || |
| CONTENT_LENGTH.equals(key)) { |
| return true; |
| } |
| return false; |
| } |
| |
| @Override |
| public boolean containsValue(final Object value) { |
| if (super.containsValue(value)) { |
| return true; |
| } |
| if (!populated) { |
| populate(); |
| return super.containsValue(value); |
| } |
| return false; |
| } |
| } |