Twidere-App-Android-Twitter.../twidere/src/main/java/org/mariotaku/twidere/util/AbsServiceInterface.java

117 lines
3.8 KiB
Java

/*
* Twidere - Twitter client for Android
*
* Copyright (C) 2012-2015 Mariotaku Lee <mariotaku.lee@gmail.com>
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package org.mariotaku.twidere.util;
import android.content.ComponentName;
import android.content.Context;
import android.content.Intent;
import android.content.ServiceConnection;
import android.os.Bundle;
import android.os.IBinder;
import android.os.IInterface;
import android.support.annotation.Nullable;
import org.mariotaku.twidere.constant.IntentConstants;
import org.mariotaku.twidere.util.ServiceUtils.ServiceToken;
public abstract class AbsServiceInterface<I extends IInterface> implements IInterface {
private final Context mContext;
private final String mShortenerName;
@Nullable
private final Bundle mMetaData;
private I mIInterface;
private ServiceToken mToken;
private boolean mDisconnected;
private final ServiceConnection mConnection = new ServiceConnection() {
@Override
public void onServiceConnected(final ComponentName service, final IBinder obj) {
mIInterface = AbsServiceInterface.this.onServiceConnected(service, obj);
mDisconnected = false;
}
@Override
public void onServiceDisconnected(final ComponentName service) {
mIInterface = null;
mDisconnected = true;
}
};
protected abstract I onServiceConnected(ComponentName service, IBinder obj);
protected AbsServiceInterface(final Context context, final String componentName, @Nullable final Bundle metaData) {
mDisconnected = true;
mContext = context;
mShortenerName = componentName;
mMetaData = metaData;
}
public final I getInterface() {
return mIInterface;
}
@Override
public final IBinder asBinder() {
// Useless here
return mIInterface.asBinder();
}
public final void unbindService() {
if (mIInterface == null || mToken == null) return;
ServiceUtils.unbindFromService(mToken);
}
public final boolean waitForService() {
if (mIInterface != null || mToken != null) return true;
final Intent intent = new Intent(IntentConstants.INTENT_ACTION_EXTENSION_SHORTEN_STATUS);
final ComponentName component = ComponentName.unflattenFromString(mShortenerName);
intent.setComponent(component);
mDisconnected = true;
mToken = ServiceUtils.bindToService(mContext, intent, mConnection);
if (mToken == null) return false;
mDisconnected = false;
while (mIInterface == null && !mDisconnected) {
try {
Thread.sleep(50L);
} catch (InterruptedException e) {
// Ignore
return false;
}
}
return true;
}
public final void checkService(CheckServiceAction action) throws CheckServiceException {
action.check(mMetaData);
}
public interface CheckServiceAction {
@SuppressWarnings("RedundantThrows")
void check(@Nullable Bundle metaData) throws CheckServiceException;
}
public static class CheckServiceException extends Exception {
}
}