/*
* Licensed to Elastic Search and Shay Banon under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. Elastic Search 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.elasticsearch.index.cache.id.simple;
import org.elasticsearch.common.BytesWrap;
import org.elasticsearch.common.collect.ImmutableMap;
import org.elasticsearch.index.cache.id.IdReaderCache;
import org.elasticsearch.index.cache.id.IdReaderTypeCache;
/**
* @author kimchy (shay.banon)
*/
public class SimpleIdReaderCache implements IdReaderCache {
private final Object readerCacheKey;
private final ImmutableMap<String, SimpleIdReaderTypeCache> types;
public SimpleIdReaderCache(Object readerCacheKey, ImmutableMap<String, SimpleIdReaderTypeCache> types) {
this.readerCacheKey = readerCacheKey;
this.types = types;
}
@Override public Object readerCacheKey() {
return this.readerCacheKey;
}
@Override public IdReaderTypeCache type(String type) {
return types.get(type);
}
@Override public BytesWrap parentIdByDoc(String type, int docId) {
SimpleIdReaderTypeCache typeCache = types.get(type);
if (typeCache != null) {
return typeCache.parentIdByDoc(docId);
}
return null;
}
@Override public int docById(String type, BytesWrap id) {
SimpleIdReaderTypeCache typeCache = types.get(type);
if (typeCache != null) {
return typeCache.docById(id);
}
return -1;
}
/**
* Returns an already stored instance if exists, if not, returns null;
*/
public BytesWrap canReuse(BytesWrap id) {
for (SimpleIdReaderTypeCache typeCache : types.values()) {
BytesWrap wrap = typeCache.canReuse(id);
if (wrap != null) {
return wrap;
}
}
return null;
}
}