com.goliathonline.android.kegbot.io.RemoteKegsHandler.java Source code

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Here is the source code for com.goliathonline.android.kegbot.io.RemoteKegsHandler.java

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/*
 * Copyright 2011 Google Inc.
 *
 * 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.goliathonline.android.kegbot.io;

import com.goliathonline.android.kegbot.provider.KegbotContract;
import com.goliathonline.android.kegbot.provider.KegbotContract.Kegs;
import com.goliathonline.android.kegbot.service.SyncService;
import com.goliathonline.android.kegbot.util.Lists;

import android.content.ContentProviderOperation;
import android.content.ContentResolver;
import android.net.Uri;

import java.io.IOException;
import java.util.ArrayList;
import java.util.List;

import org.apache.http.client.methods.HttpGet;
import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;

/**
 * Handle a remote {@link JSONObject} that defines a set of {@link Kegs}
 * entries.
 */
public class RemoteKegsHandler extends JsonHandler {
    private static final String TAG = "KegsHandler";

    private RemoteExecutor mExecutor;

    public RemoteKegsHandler(RemoteExecutor executor) {
        super(KegbotContract.CONTENT_AUTHORITY);
        mExecutor = executor;
    }

    /** {@inheritDoc} */
    @Override
    public ArrayList<ContentProviderOperation> parse(JSONObject parser, ContentResolver resolver)
            throws JSONException, IOException {

        if (parser.has("result")) {
            JSONObject events = parser.getJSONObject("result");
            JSONArray resultArray = events.getJSONArray("kegs");
            int numKegs = resultArray.length();
            List<String> kegIDs = new ArrayList<String>();

            JSONObject keg, kegInfo;
            for (int i = 0; i < numKegs; i++) {
                keg = resultArray.getJSONObject(i);
                kegInfo = keg.getJSONObject("keg");
                kegIDs.add(kegInfo.getString("id"));
                ///TODO: new api allows all infromation to be parsed here, and not in a seperate call.
            }
            considerUpdate(kegIDs, Kegs.CONTENT_URI, resolver);
        }

        return Lists.newArrayList();
    }

    private void considerUpdate(List<String> kegIDs, Uri targetDir, ContentResolver resolver)
            throws HandlerException {

        String url = SyncService.getApiUrl() + "/kegs/";

        for (int i = 0; i < kegIDs.size(); i++) {
            final HttpGet request = new HttpGet(url + kegIDs.get(i));
            final JsonHandler handler = new RemoteKegHandler();
            mExecutor.execute(request, handler);
        }

    }
}