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Diffstat (limited to 'java/com/android/voicemail/impl/scheduling/PostponePolicy.java')
-rw-r--r-- | java/com/android/voicemail/impl/scheduling/PostponePolicy.java | 68 |
1 files changed, 68 insertions, 0 deletions
diff --git a/java/com/android/voicemail/impl/scheduling/PostponePolicy.java b/java/com/android/voicemail/impl/scheduling/PostponePolicy.java new file mode 100644 index 000000000..46773b53a --- /dev/null +++ b/java/com/android/voicemail/impl/scheduling/PostponePolicy.java @@ -0,0 +1,68 @@ +/* + * Copyright (C) 2016 The Android Open Source Project + * + * Licensed 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 com.android.voicemail.impl.scheduling; + +import android.os.Bundle; +import com.android.voicemail.impl.VvmLog; + +/** + * A task with Postpone policy will not be executed immediately. It will wait for a while and if a + * duplicated task is queued during the duration, the task will be postponed further. The task will + * only be executed if no new task was added in postponeMillis. Useful to batch small tasks in quick + * succession together. + */ +public class PostponePolicy implements Policy { + + private static final String TAG = "PostponePolicy"; + + private final int mPostponeMillis; + private BaseTask mTask; + + public PostponePolicy(int postponeMillis) { + mPostponeMillis = postponeMillis; + } + + @Override + public void onCreate(BaseTask task, Bundle extras) { + mTask = task; + mTask.setExecutionTime(mTask.getTimeMillis() + mPostponeMillis); + } + + @Override + public void onBeforeExecute() { + // Do nothing + } + + @Override + public void onCompleted() { + // Do nothing + } + + @Override + public void onFail() { + // Do nothing + } + + @Override + public void onDuplicatedTaskAdded() { + if (mTask.hasStarted()) { + return; + } + VvmLog.i(TAG, "postponing " + mTask); + mTask.setExecutionTime(mTask.getTimeMillis() + mPostponeMillis); + } +} |