| /* |
| * 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.jackrabbit.oak.plugins.document.mongo; |
| |
| import static com.google.common.collect.Iterables.transform; |
| |
| import java.util.Iterator; |
| |
| import org.apache.jackrabbit.oak.plugins.document.BlobReferenceIterator; |
| import org.apache.jackrabbit.oak.plugins.document.Collection; |
| import org.apache.jackrabbit.oak.plugins.document.DocumentNodeStore; |
| import org.apache.jackrabbit.oak.plugins.document.NodeDocument; |
| import org.apache.jackrabbit.oak.plugins.document.util.CloseableIterable; |
| |
| import com.google.common.base.Function; |
| import com.mongodb.DBCursor; |
| import com.mongodb.DBObject; |
| import com.mongodb.QueryBuilder; |
| |
| public class MongoBlobReferenceIterator extends BlobReferenceIterator { |
| |
| private final MongoDocumentStore documentStore; |
| |
| public MongoBlobReferenceIterator(DocumentNodeStore nodeStore, MongoDocumentStore documentStore) { |
| super(nodeStore); |
| this.documentStore = documentStore; |
| } |
| |
| @Override |
| public Iterator<NodeDocument> getIteratorOverDocsWithBinaries() { |
| DBObject query = QueryBuilder.start(NodeDocument.HAS_BINARY_FLAG).is(NodeDocument.HAS_BINARY_VAL).get(); |
| // TODO It currently prefers secondary. Would that be Ok? |
| DBCursor cursor = documentStore.getDBCollection(Collection.NODES).find(query) |
| .setReadPreference(documentStore.getConfiguredReadPreference(Collection.NODES)); |
| |
| return CloseableIterable.wrap(transform(cursor, new Function<DBObject, NodeDocument>() { |
| @Override |
| public NodeDocument apply(DBObject input) { |
| return documentStore.convertFromDBObject(Collection.NODES, input); |
| } |
| }), cursor).iterator(); |
| |
| } |
| } |