/*
* Licensed to CRATE Technology GmbH ("Crate") under one or more contributor
* license agreements. See the NOTICE file distributed with this work for
* additional information regarding copyright ownership. Crate 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.
*
* However, if you have executed another commercial license agreement
* with Crate these terms will supersede the license and you may use the
* software solely pursuant to the terms of the relevant commercial agreement.
*/
package io.crate.operation.reference.sys.shard;
import com.google.common.base.Supplier;
import com.google.common.base.Suppliers;
import io.crate.metadata.ReferenceImplementation;
import org.elasticsearch.index.shard.IndexShard;
import java.util.concurrent.TimeUnit;
public class ShardSizeExpression implements ReferenceImplementation<Long> {
private final Supplier<Long> sizeSupplier;
public ShardSizeExpression(final IndexShard indexShard) {
sizeSupplier = Suppliers.memoizeWithExpiration(new Supplier<Long>() {
@Override
public Long get() {
return indexShard.storeStats().getSizeInBytes();
}
}, 10, TimeUnit.SECONDS);
}
@Override
public Long value() {
return sizeSupplier.get();
}
}