modules/core/src/test/java/org/apache/ignite/internal/TestDelayingCommunicationSpi.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;

import java.util.concurrent.ThreadLocalRandom;
import org.apache.ignite.IgniteException;
import org.apache.ignite.cluster.ClusterNode;
import org.apache.ignite.internal.managers.communication.GridIoMessage;
import org.apache.ignite.internal.util.typedef.internal.U;
import org.apache.ignite.lang.IgniteInClosure;
import org.apache.ignite.plugin.extensions.communication.Message;
import org.apache.ignite.spi.IgniteSpiException;

/**
 *
 */
public abstract class TestDelayingCommunicationSpi extends TestRecordingCommunicationSpi {
    /** {@inheritDoc} */
    @Override public void sendMessage(ClusterNode node, Message msg, IgniteInClosure<IgniteException> ackC)
        throws IgniteSpiException {
        try {
            GridIoMessage ioMsg = (GridIoMessage)msg;

            if (delayMessage(ioMsg.message(), ioMsg))
                U.sleep(ThreadLocalRandom.current().nextInt(delayMillis()) + 1);
        }
        catch (IgniteInterruptedCheckedException e) {
            throw new IgniteSpiException(e);
        }

        super.sendMessage(node, msg, ackC);
    }

    /**
     * @param msg Message.
     * @param ioMsg Wrapper message.
     * @return {@code True} if need delay message.
     */
    protected abstract boolean delayMessage(Message msg, GridIoMessage ioMsg);

    /**
     * @return Max delay time.
     */
    protected int delayMillis() {
        return 250;
    }
}