cz.zcu.kiv.eeg.mobile.base.ws.asynctask.CreateDigitization.java Source code

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Here is the source code for cz.zcu.kiv.eeg.mobile.base.ws.asynctask.CreateDigitization.java

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/***********************************************************************************************************************
 *
 * This file is part of the eeg-database-for-android project
    
 * ==========================================
 *
 * Copyright (C) 2013 by University of West Bohemia (http://www.zcu.cz/en/)
 *
 ***********************************************************************************************************************
 *
 * 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.
 *
 ***********************************************************************************************************************
 *
 * Petr Jeek, Petr Miko
 *
 **********************************************************************************************************************/
package cz.zcu.kiv.eeg.mobile.base.ws.asynctask;

import android.app.Activity;
import android.content.Intent;
import android.content.SharedPreferences;
import android.util.Log;
import android.widget.Toast;
import cz.zcu.kiv.eeg.mobile.base.R;
import cz.zcu.kiv.eeg.mobile.base.archetypes.CommonActivity;
import cz.zcu.kiv.eeg.mobile.base.archetypes.CommonService;
import cz.zcu.kiv.eeg.mobile.base.data.Values;
import cz.zcu.kiv.eeg.mobile.base.data.container.xml.Digitization;
import cz.zcu.kiv.eeg.mobile.base.ws.ssl.SSLSimpleClientHttpRequestFactory;
import org.springframework.http.*;
import org.springframework.http.converter.xml.SimpleXmlHttpMessageConverter;
import org.springframework.web.client.RestTemplate;

import java.util.Collections;

import static cz.zcu.kiv.eeg.mobile.base.data.ServiceState.*;

/**
 * Common service (Asynctask) for creating new Digitization on eeg base.
 *
 * @author Petr Miko
 */
public class CreateDigitization extends CommonService<Digitization, Void, Digitization> {

    private final static String TAG = CreateDigitization.class.getSimpleName();

    /**
     * Constructor, which sets reference to parent activity.
     *
     * @param context parent activity
     */
    public CreateDigitization(CommonActivity context) {
        super(context);
    }

    /**
     * Method, where digitization information is pushed to server in order to create user.
     * All heavy lifting is made here.
     *
     * @param digitizations only one Digitization object is accepted
     * @return information about created digitization
     */
    @Override
    protected Digitization doInBackground(Digitization... digitizations) {
        SharedPreferences credentials = getCredentials();
        String username = credentials.getString("username", null);
        String password = credentials.getString("password", null);
        String url = credentials.getString("url", null) + Values.SERVICE_DIGITIZATIONS;

        setState(RUNNING, R.string.working_ws_create_digitization);
        HttpAuthentication authHeader = new HttpBasicAuthentication(username, password);
        HttpHeaders requestHeaders = new HttpHeaders();
        requestHeaders.setAuthorization(authHeader);
        requestHeaders.setAccept(Collections.singletonList(MediaType.APPLICATION_XML));
        requestHeaders.setContentType(MediaType.APPLICATION_XML);

        SSLSimpleClientHttpRequestFactory factory = new SSLSimpleClientHttpRequestFactory();
        // Create a new RestTemplate instance
        RestTemplate restTemplate = new RestTemplate(factory);
        restTemplate.getMessageConverters().add(new SimpleXmlHttpMessageConverter());

        Digitization digitization = digitizations[0];

        try {
            Log.d(TAG, url);

            HttpEntity<Digitization> entity = new HttpEntity<Digitization>(digitization, requestHeaders);
            // Make the network request
            return restTemplate.postForObject(url, entity, Digitization.class);
        } catch (Exception e) {
            Log.e(TAG, e.getLocalizedMessage(), e);
            setState(ERROR, e);
        } finally {
            setState(DONE);
        }
        return null;
    }

    /**
     * Informs user whether digitization creation was successful or not.
     *
     * @param digitization returned digitization info if any
     */
    @Override
    protected void onPostExecute(Digitization digitization) {
        if (digitization != null) {
            Intent resultIntent = new Intent();
            resultIntent.putExtra(Values.ADD_DIGITIZATION_KEY, digitization);
            Toast.makeText(activity, R.string.creation_ok, Toast.LENGTH_SHORT).show();
            activity.setResult(Activity.RESULT_OK, resultIntent);
            activity.finish();
        } else {
            Toast.makeText(activity, R.string.creation_failed, Toast.LENGTH_SHORT).show();
        }
    }
}