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implemented: #247 Change-Id: Ie1baacb93f18d66ed7169161f15f398701e955a3
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34 changes: 34 additions & 0 deletions
34
hugegraph-core/src/main/java/com/baidu/hugegraph/job/EphemeralJob.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,34 @@ | ||
| /* | ||
| * Copyright 2017 HugeGraph Authors | ||
| * | ||
| * 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. | ||
| */ | ||
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| package com.baidu.hugegraph.job; | ||
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| import com.baidu.hugegraph.task.TaskCallable; | ||
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| public abstract class EphemeralJob<T> extends TaskCallable<T> { | ||
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| public abstract String type(); | ||
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| public abstract T execute() throws Exception; | ||
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| @Override | ||
| public T call() throws Exception { | ||
| return this.execute(); | ||
| } | ||
| } |
82 changes: 82 additions & 0 deletions
82
hugegraph-core/src/main/java/com/baidu/hugegraph/job/EphemeralJobBuilder.java
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,82 @@ | ||
| /* | ||
| * Copyright 2017 HugeGraph Authors | ||
| * | ||
| * 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. | ||
| */ | ||
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| package com.baidu.hugegraph.job; | ||
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| import com.baidu.hugegraph.HugeGraph; | ||
| import com.baidu.hugegraph.backend.id.Id; | ||
| import com.baidu.hugegraph.backend.id.IdGenerator; | ||
| import com.baidu.hugegraph.task.HugeTask; | ||
| import com.baidu.hugegraph.task.TaskScheduler; | ||
| import com.baidu.hugegraph.util.E; | ||
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| public class EphemeralJobBuilder<T> { | ||
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| private final HugeGraph graph; | ||
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| private String name; | ||
| private String input; | ||
| private EphemeralJob<T> job; | ||
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| private static int tempTaskId = 0; | ||
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| public static <T> EphemeralJobBuilder<T> of(final HugeGraph graph) { | ||
| return new EphemeralJobBuilder<>(graph); | ||
| } | ||
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| public EphemeralJobBuilder(final HugeGraph graph) { | ||
| this.graph = graph; | ||
| } | ||
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| public EphemeralJobBuilder<T> name(String name) { | ||
| this.name = name; | ||
| return this; | ||
| } | ||
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| public EphemeralJobBuilder<T> input(String input) { | ||
| this.input = input; | ||
| return this; | ||
| } | ||
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| public EphemeralJobBuilder<T> job(EphemeralJob<T> job) { | ||
| this.job = job; | ||
| return this; | ||
| } | ||
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| public HugeTask<T> schedule() { | ||
| E.checkArgumentNotNull(this.name, "Job name can't be null"); | ||
| E.checkArgumentNotNull(this.job, "Job can't be null"); | ||
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| HugeTask<T> task = new HugeTask<>(this.genTaskId(), null, this.job); | ||
| task.type(this.job.type()); | ||
| task.name(this.name); | ||
| if (this.input != null) { | ||
| task.input(this.input); | ||
| } | ||
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| TaskScheduler scheduler = this.graph.taskScheduler(); | ||
| scheduler.schedule(task); | ||
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| return task; | ||
| } | ||
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| private Id genTaskId() { | ||
| return IdGenerator.of(--tempTaskId); | ||
| } | ||
| } |