| /* |
| * 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.visor; |
| |
| import org.apache.ignite.IgniteException; |
| import org.apache.ignite.compute.ComputeJobAdapter; |
| import org.apache.ignite.internal.IgniteEx; |
| import org.apache.ignite.internal.util.typedef.internal.U; |
| import org.apache.ignite.resources.IgniteInstanceResource; |
| import org.jetbrains.annotations.Nullable; |
| |
| import static org.apache.ignite.internal.visor.util.VisorTaskUtils.logFinish; |
| import static org.apache.ignite.internal.visor.util.VisorTaskUtils.logStart; |
| |
| /** |
| * Base class for Visor jobs. |
| * |
| * @param <A> Job argument type. |
| * @param <R> Job result type. |
| */ |
| public abstract class VisorJob<A, R> extends ComputeJobAdapter { |
| /** Auto-injected grid instance. */ |
| @IgniteInstanceResource |
| protected transient IgniteEx ignite; |
| |
| /** Job start time. */ |
| protected transient long start; |
| |
| /** Debug flag. */ |
| protected boolean debug; |
| |
| /** |
| * Create job with specified argument. |
| * |
| * @param arg Job argument. |
| * @param debug Flag indicating whether debug information should be printed into node log. |
| */ |
| protected VisorJob(@Nullable A arg, boolean debug) { |
| super(arg); |
| |
| this.debug = debug; |
| } |
| |
| /** {@inheritDoc} */ |
| @Nullable @Override public Object execute() { |
| start = U.currentTimeMillis(); |
| |
| A arg = argument(0); |
| |
| try { |
| if (debug) |
| logStart(ignite.log(), getClass(), start); |
| |
| return run(arg); |
| } |
| finally { |
| if (debug) |
| logFinish(ignite.log(), getClass(), start); |
| } |
| } |
| |
| /** |
| * Execution logic of concrete job. |
| * |
| * @param arg Task argument. |
| * @return Result. |
| * @throws IgniteException In case of error. |
| */ |
| protected abstract R run(@Nullable A arg) throws IgniteException; |
| } |