70 lines
2 KiB
Java
70 lines
2 KiB
Java
/*
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* Copyright (C) 2013-2017 microG Project Team
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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 org.microg.nlp;
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import android.app.IntentService;
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import android.content.Intent;
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import android.os.IBinder;
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public abstract class AbstractProviderService<T extends Provider> extends IntentService {
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protected String TAG;
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/**
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* Creates an ProviderService. Invoked by your subclass's constructor.
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*
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* @param tag Used for debugging.
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*/
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public AbstractProviderService(String tag) {
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super(tag);
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this.TAG = tag;
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}
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@Override
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public IBinder onBind(Intent intent) {
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return getProvider().getBinder();
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}
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@Override
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public boolean onUnbind(Intent intent) {
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destroyProvider();
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return super.onUnbind(intent);
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}
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/**
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* Create a new {@link Provider} or return the existing one.
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* <p/>
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* This might be called more than once, the implementation has to ensure that only one
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* {@link Provider} is returned.
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*
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* @return a new or existing {@link Provider} instance
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*/
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protected abstract T getProvider();
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/**
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* Destroy the active {@link Provider}.
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* <p/>
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* After this has been called, the {@link Provider} instance, that was active before should no
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* longer be returned with {@link #getProvider()}.
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*/
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protected abstract void destroyProvider();
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@Override
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protected void onHandleIntent(Intent intent) {
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// Default implementation is to do nothing
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}
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}
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