69 lines
1.9 KiB
Java
69 lines
1.9 KiB
Java
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/*
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* Copyright (C) 2016 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License
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*/
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package com.android.voicemail.impl.scheduling;
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import android.os.Bundle;
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import com.android.voicemail.impl.VvmLog;
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/**
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* A task with Postpone policy will not be executed immediately. It will wait for a while and if a
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* duplicated task is queued during the duration, the task will be postponed further. The task will
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* only be executed if no new task was added in postponeMillis. Useful to batch small tasks in quick
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* succession together.
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*/
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public class PostponePolicy implements Policy {
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private static final String TAG = "PostponePolicy";
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private final int postponeMillis;
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private BaseTask task;
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public PostponePolicy(int postponeMillis) {
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this.postponeMillis = postponeMillis;
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}
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@Override
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public void onCreate(BaseTask task, Bundle extras) {
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this.task = task;
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this.task.setExecutionTime(this.task.getTimeMillis() + postponeMillis);
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}
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@Override
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public void onBeforeExecute() {
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// Do nothing
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}
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@Override
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public void onCompleted() {
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// Do nothing
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}
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@Override
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public void onFail() {
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// Do nothing
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}
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@Override
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public void onDuplicatedTaskAdded() {
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if (task.hasStarted()) {
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return;
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}
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VvmLog.i(TAG, "postponing " + task);
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task.setExecutionTime(task.getTimeMillis() + postponeMillis);
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}
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}
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