net.reichholf.dreamdroid.loader.AsyncSimpleLoader.java Source code

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Here is the source code for net.reichholf.dreamdroid.loader.AsyncSimpleLoader.java

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/*  2010 Stephan Reichholf <stephan at reichholf dot net>
 * 
 * Licensed under the Create-Commons Attribution-Noncommercial-Share Alike 3.0 Unported
 * http://creativecommons.org/licenses/by-nc-sa/3.0/
 */

package net.reichholf.dreamdroid.loader;

import java.util.ArrayList;

import net.reichholf.dreamdroid.DreamDroid;
import net.reichholf.dreamdroid.R;
import net.reichholf.dreamdroid.helpers.ExtendedHashMap;
import net.reichholf.dreamdroid.helpers.SimpleHttpClient;
import net.reichholf.dreamdroid.helpers.enigma2.requesthandler.AbstractSimpleRequestHandler;

import org.apache.http.NameValuePair;

import android.content.Context;
import android.os.Bundle;
import android.support.v4.content.AsyncTaskLoader;

/**
 * @author sre
 * 
 */
public class AsyncSimpleLoader extends AsyncTaskLoader<LoaderResult<ExtendedHashMap>> {

    private AbstractSimpleRequestHandler mHandler;
    private SimpleHttpClient mShc;
    protected ArrayList<NameValuePair> mParams;

    public AsyncSimpleLoader(Context context, AbstractSimpleRequestHandler handler, Bundle args) {
        super(context);
        init(context, handler, args);
    }

    @SuppressWarnings("unchecked")
    private void init(Context context, AbstractSimpleRequestHandler handler, Bundle args) {
        mHandler = handler;
        DreamDroid.loadCurrentProfile(context);
        mShc = new SimpleHttpClient();
        if (args != null && args.containsKey("params"))
            mParams = (ArrayList<NameValuePair>) args.getSerializable("params");
        else
            mParams = null;
    }

    @Override
    protected void onStartLoading() {
        forceLoad();
    }

    @Override
    protected void onStopLoading() {
        // Attempt to cancel the current load task if possible.
        cancelLoad();
    }

    @Override
    public LoaderResult<ExtendedHashMap> loadInBackground() {
        ExtendedHashMap content = new ExtendedHashMap();
        String xml = null;
        if (mParams == null)
            xml = mHandler.get(mShc);
        else
            xml = mHandler.get(mShc, mParams);

        LoaderResult<ExtendedHashMap> result = new LoaderResult<ExtendedHashMap>();
        if (xml != null) {
            if (mHandler.parse(xml, content))
                result.set(content);
            else
                result.set(getContext().getString(R.string.error_parsing));
        } else {
            if (mShc.hasError())
                result.set(mShc.getErrorText());
            else
                result.set(getContext().getString(R.string.error));
        }
        return result;
    }

}