/*
    * Copyright 2016 The Lannister Project
    * 
    * Licensed 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 net.anyflow.lannister.cluster;
  
  import java.util.Set;
  import java.util.stream.Collectors;
  
  import javax.cache.Cache;
  
  import org.apache.ignite.IgniteCache;
  import org.apache.ignite.cache.query.ScanQuery;
  
  public class IgniteMap<K, V> implements Map<K, V> {
  
  	private IgniteCache<K, V> engine;
  
  	public IgniteMap(String name) {
  		engine = Ignite.INSTANCE.getCache(name);
  	}
  
  	@Override
  	public void put(K key, V value) {
  		engine.put(key, value);
  	}
  
  	@Override
  	public V get(K key) {
  		return engine.get(key);
  	}
  
  	@Override
  	public V remove(K key) {
  		return engine.getAndRemove(key);
  	}
  
  	@Override
  	public Set<K> keySet() {
  		return engine.query(new ScanQuery<K, V>()).getAll().stream().map(Cache.Entry::getKey)
  				.collect(Collectors.toSet());
  	}
  
  	@Override
  	public int size() {
  		return engine.size();
  	}
  
  	@Override
  	public void dispose() {
  		engine.destroy();
  	}
  
  	@Override
  	public boolean containsKey(K key) {
  		return engine.containsKey(key);
  	}
  }