storm-server/src/main/java/org/apache/storm/daemon/drpc/OutstandingRequest.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.storm.daemon.drpc;

import org.apache.storm.generated.DRPCExecutionException;
import org.apache.storm.generated.DRPCRequest;
import org.apache.storm.utils.Time;

public abstract class OutstandingRequest {
    private final long start;
    private final String function;
    private final DRPCRequest req;
    private volatile boolean fetched = false;

    public OutstandingRequest(String function, DRPCRequest req) {
        start = Time.currentTimeMillis();
        this.function = function;
        this.req = req;
    }

    public DRPCRequest getRequest() {
        return req;
    }

    public void fetched() {
        fetched = true;
    }

    public boolean wasFetched() {
        return fetched;
    }

    public String getFunction() {
        return function;
    }

    public boolean isTimedOut(long timeoutMs) {
        return (start + timeoutMs) <= Time.currentTimeMillis();
    }

    public abstract void returnResult(String result);

    public abstract void fail(DRPCExecutionException e);
}