| /** |
| * 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.atlas.repository.store.graph.v1; |
| |
| |
| import org.apache.atlas.model.instance.AtlasEntity; |
| |
| import java.util.Iterator; |
| import java.util.Map; |
| |
| public class InMemoryMapEntityStream implements EntityStream { |
| |
| private final Map<String, AtlasEntity> entities; |
| private Iterator<Map.Entry<String, AtlasEntity>> iterator; |
| |
| public InMemoryMapEntityStream(Map<String, AtlasEntity> entities) { |
| this.entities = entities; |
| this.iterator = entities.entrySet().iterator(); |
| } |
| |
| @Override |
| public boolean hasNext() { |
| return iterator.hasNext(); |
| } |
| |
| @Override |
| public AtlasEntity next() { |
| return iterator.hasNext() ? iterator.next().getValue() : null; |
| } |
| |
| @Override |
| public void reset() { |
| iterator = entities.entrySet().iterator(); |
| } |
| |
| @Override |
| public AtlasEntity getByGuid(final String guid) { |
| return entities.get(guid); |
| } |
| } |