de.schildbach.wallet.ui.MasternodeLoader.java Source code

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Here is the source code for de.schildbach.wallet.ui.MasternodeLoader.java

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/*
 * Copyright 2013-2015 the original author or authors.
 *
 * 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 de.schildbach.wallet.ui;

import android.content.AsyncTaskLoader;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.support.v4.content.LocalBroadcastManager;

import org.bitcoinj.core.MasternodeManager;
import org.bitcoinj.core.MasternodeManagerListener;
import org.bitcoinj.core.MasternodeSync;
import org.bitcoinj.core.MasternodeSyncListener;
import org.bitcoinj.core.Wallet;
import org.bitcoinj.utils.Threading;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import java.util.concurrent.RejectedExecutionException;

import de.schildbach.wallet.WalletApplication;

/**
 * @author Andreas Schildbach
 */
public final class MasternodeLoader extends AsyncTaskLoader<Integer> {
    private LocalBroadcastManager broadcastManager;
    private final MasternodeSync masternodeSync;
    private final MasternodeManager masternodeManager;
    private int masternodeSyncStatus;

    private static final Logger log = LoggerFactory.getLogger(MasternodeLoader.class);
    org.bitcoinj.core.Context dashContext;

    public MasternodeLoader(final Context context, org.bitcoinj.core.Context dashContext) {
        super(context);
        this.dashContext = dashContext;

        this.broadcastManager = LocalBroadcastManager.getInstance(context.getApplicationContext());
        this.masternodeSync = dashContext.masternodeSync;
        this.masternodeSyncStatus = masternodeSync.getSyncStatusInt();
        this.masternodeManager = dashContext.masternodeManager;
    }

    @Override
    protected void onStartLoading() {
        super.onStartLoading();

        masternodeSync.addEventListener(masternodeSyncListener, Threading.SAME_THREAD);
        masternodeManager.addEventListener(masternodeManagerListener, Threading.SAME_THREAD);
        broadcastManager.registerReceiver(masternodeSyncReceiver,
                new IntentFilter(WalletApplication.ACTION_WALLET_REFERENCE_CHANGED));

        safeForceLoad();
    }

    @Override
    protected void onStopLoading() {
        broadcastManager.unregisterReceiver(masternodeSyncReceiver);
        masternodeSync.removeEventListener(masternodeSyncListener);
        masternodeManager.removeEventListener(masternodeManagerListener);
        //      masternodeSyncListener.removeCallbacks();

        super.onStopLoading();
    }

    @Override
    protected void onReset() {
        broadcastManager.unregisterReceiver(masternodeSyncReceiver);
        masternodeSync.removeEventListener(masternodeSyncListener);
        masternodeManager.removeEventListener(masternodeManagerListener);
        //masternodeSyncListener.removeCallbacks();

        super.onReset();
    }

    @Override
    public Integer loadInBackground() {
        masternodeSyncStatus = masternodeSync.getSyncStatusInt();
        return masternodeSyncStatus;
    }

    private final MasternodeSyncListener masternodeSyncListener = new MasternodeSyncListener() {
        @Override
        public void onSyncStatusChanged(int newStatus, double progress) {
            masternodeSyncStatus = newStatus;
            safeForceLoad();
        }
    };
    private final MasternodeManagerListener masternodeManagerListener = new MasternodeManagerListener() {
        @Override
        public void onMasternodeCountChanged(int newCount) {
            masternodeSyncStatus = newCount;
            safeForceLoad();
        }
    };

    private final BroadcastReceiver masternodeSyncReceiver = new BroadcastReceiver() {
        @Override
        public void onReceive(Context context, Intent intent) {
            safeForceLoad();
        }
    };

    private void safeForceLoad() {
        try {
            forceLoad();
        } catch (final RejectedExecutionException x) {
            log.info("rejected execution: " + MasternodeLoader.this.toString());
        }
    }
}