modules/core/src/main/java/org/apache/ignite/internal/processors/closure/GridPeerDeployAwareTaskAdapter.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.closure;

import org.apache.ignite.compute.ComputeTaskAdapter;
import org.apache.ignite.internal.util.lang.GridPeerDeployAware;
import org.apache.ignite.internal.util.typedef.internal.U;
import org.jetbrains.annotations.Nullable;

/**
 * Peer deployment aware task adapter.
 */
public abstract class GridPeerDeployAwareTaskAdapter<T, R> extends ComputeTaskAdapter<T, R>
    implements GridPeerDeployAware {
    /** */
    private static final long serialVersionUID = 0L;

    /** Peer deploy aware class. */
    private transient GridPeerDeployAware pda;

    /**
     * Constructor that receives deployment information for task.
     *
     * @param pda Deployment information.
     */
    protected GridPeerDeployAwareTaskAdapter(@Nullable GridPeerDeployAware pda) {
        this.pda = pda;
    }

    /** {@inheritDoc} */
    @Override public Class<?> deployClass() {
        if (pda == null)
            pda = U.detectPeerDeployAware(this);

        return pda.deployClass();
    }

    /** {@inheritDoc} */
    @Override public ClassLoader classLoader() {
        if (pda == null)
            pda = U.detectPeerDeployAware(this);

        return pda.classLoader();
    }
}