modules/core/src/main/java/org/apache/ignite/internal/processors/cache/distributed/dht/GridDhtCache.java

/*
 * 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.ignite.internal.processors.cache.distributed.dht;

import java.io.Externalizable;
import org.apache.ignite.IgniteCheckedException;
import org.apache.ignite.internal.processors.cache.CacheMetricsImpl;
import org.apache.ignite.internal.processors.cache.GridCacheConcurrentMap;
import org.apache.ignite.internal.processors.cache.GridCacheContext;
import org.apache.ignite.internal.processors.cache.distributed.near.GridNearTransactionalCache;
import org.apache.ignite.internal.util.tostring.GridToStringExclude;

/**
 * DHT cache.
 */
public class GridDhtCache<K, V> extends GridDhtTransactionalCacheAdapter<K, V> {
    /** */
    private static final long serialVersionUID = 0L;

    /** Near cache. */
    @GridToStringExclude
    private GridNearTransactionalCache<K, V> near;

    /**
     * Empty constructor required for {@link Externalizable}.
     */
    public GridDhtCache() {
        // No-op.
    }

    /**
     * @param ctx Context.
     */
    public GridDhtCache(GridCacheContext<K, V> ctx) {
        super(ctx);
    }

    /**
     * @param ctx Cache context.
     * @param map Cache map.
     */
    public GridDhtCache(GridCacheContext<K, V> ctx, GridCacheConcurrentMap map) {
        super(ctx, map);
    }

    /** {@inheritDoc} */
    @Override public boolean isDht() {
        return true;
    }

    /** {@inheritDoc} */
    @Override public String name() {
        String name = super.name();

        return name == null ? "defaultDhtCache" : name + "Dht";
    }

    /** {@inheritDoc} */
    @Override public void start() throws IgniteCheckedException {
        CacheMetricsImpl m = new CacheMetricsImpl(ctx);

        m.delegate(ctx.dht().near().metrics0());

        metrics = m;

        ctx.dr().resetMetrics();


        super.start();
    }

    /**
     * @return Near cache.
     */
    @Override public GridNearTransactionalCache<K, V> near() {
        return near;
    }

    /**
     * @param near Near cache.
     */
    public void near(GridNearTransactionalCache<K, V> near) {
        this.near = near;
    }
}