Synnefo » Pithos Android Client

package com.rackspacecloud.android;

import java.io.IOException;

import java.io.StringReader;

import javax.xml.parsers.FactoryConfigurationError;

import javax.xml.parsers.ParserConfigurationException;

import javax.xml.parsers.SAXParser;

import javax.xml.parsers.SAXParserFactory;

import org.apache.http.HttpResponse;

import org.apache.http.client.ClientProtocolException;

import org.apache.http.impl.client.BasicResponseHandler;

import org.xml.sax.InputSource;

import org.xml.sax.SAXException;

import org.xml.sax.XMLReader;

import android.app.Activity;

import android.app.AlertDialog;

import android.content.Context;

import android.content.DialogInterface;

import android.content.Intent;

import android.os.AsyncTask;

import android.os.Bundle;

import android.view.View;

import android.view.View.OnClickListener;

import android.widget.Button;

import android.widget.EditText;

import android.widget.ProgressBar;

import android.widget.TextView;

import android.widget.Toast;

import com.rackspace.cloud.files.api.client.ContainerManager;

import com.rackspace.cloud.servers.api.client.CloudServersException;

import com.rackspace.cloud.servers.api.client.http.HttpBundle;

import com.rackspace.cloud.servers.api.client.parsers.CloudServersFaultXMLParser;

/** 

 * 

 * @author Phillip Toohill

 *

 */

public class AddContainerActivity extends GaActivity implements  OnClickListener {

        private EditText containerName;

        private Context context;        

        private boolean isSaving;

        /** Called when the activity is first created. */

        @Override

        public void onCreate(Bundle savedInstanceState) {

                super.onCreate(savedInstanceState);

                trackPageView(PAGE_ADD_CONTAINER);

                context = getApplicationContext();

                setContentView(R.layout.createcontainer);

                containerName = (EditText) findViewById(R.id.container_name);

                ((Button) findViewById(R.id.save_button)).setOnClickListener(this);

                isSaving = savedInstanceState != null && savedInstanceState.containsKey("isSaving")

                        && savedInstanceState.getBoolean("isSaving");

                if(isSaving){

                        showActivityIndicators();

                }

        }

        @Override

        protected void onSaveInstanceState(Bundle outState){

                super.onSaveInstanceState(outState);

                outState.putBoolean("isSaving", isSaving);

        }

        public void onClick(View arg0) {

                if ("".equals(containerName.getText().toString())) {

                        showAlert("Required Fields Missing", " Container name is required.");

                } else {

                        showActivityIndicators();

                        trackEvent(CATEGORY_CONTAINER, EVENT_CREATE, "", -1);

                        new CreateContainerTask().execute((Void[]) null);

                }

        }

        private void showAlert(String title, String message) {

                AlertDialog alert = new AlertDialog.Builder(this).create();

                alert.setTitle(title);

                alert.setMessage(message);

                alert.setButton("OK", new DialogInterface.OnClickListener() {

                        public void onClick(DialogInterface dialog, int which) {

                                return;

                        } }); 

                alert.show();

                hideActivityIndicators();

        }

        private void showToast(String message) {

                Context context = getApplicationContext();

                int duration = Toast.LENGTH_SHORT;

                Toast toast = Toast.makeText(context, message, duration);

                toast.show();

        }

        private void setActivityIndicatorsVisibility(int visibility) {

                ProgressBar pb = (ProgressBar) findViewById(R.id.save_container_progress_bar);

                TextView tv = (TextView) findViewById(R.id.saving_container_label);

                pb.setVisibility(visibility);

                tv.setVisibility(visibility);

        }

        private void showActivityIndicators() {

                isSaving = true;

                setActivityIndicatorsVisibility(View.VISIBLE);

        }

        private void hideActivityIndicators() {

                isSaving = false;

                setActivityIndicatorsVisibility(View.INVISIBLE);

        }

        //using cloudServersException, it works for us too

        private CloudServersException parseCloudServersException(HttpResponse response) {

                CloudServersException cse = new CloudServersException();

                try {

                        BasicResponseHandler responseHandler = new BasicResponseHandler();

                        String body = responseHandler.handleResponse(response);

                        CloudServersFaultXMLParser parser = new CloudServersFaultXMLParser();

                        SAXParser saxParser = SAXParserFactory.newInstance().newSAXParser();

                        XMLReader xmlReader = saxParser.getXMLReader();

                        xmlReader.setContentHandler(parser);

                        xmlReader.parse(new InputSource(new StringReader(body)));                            

                        cse = parser.getException();                            

                } catch (ClientProtocolException e) {

                        cse = new CloudServersException();

                        cse.setMessage(e.getLocalizedMessage());

                } catch (IOException e) {

                        cse = new CloudServersException();

                        cse.setMessage(e.getLocalizedMessage());

                } catch (ParserConfigurationException e) {

                        cse = new CloudServersException();

                        cse.setMessage(e.getLocalizedMessage());

                } catch (SAXException e) {

                        cse = new CloudServersException();

                        cse.setMessage(e.getLocalizedMessage());

                } catch (FactoryConfigurationError e) {

                        cse = new CloudServersException();

                        cse.setMessage(e.getLocalizedMessage());

                }

                return cse;

        }

        private void startFileError(String message, HttpBundle bundle){

                Intent viewIntent = new Intent(getApplicationContext(), ServerErrorActivity.class);

                viewIntent.putExtra("errorMessage", message);

                viewIntent.putExtra("response", bundle.getResponseText());

                viewIntent.putExtra("request", bundle.getCurlRequest());

                startActivity(viewIntent);

        }

        private class CreateContainerTask extends AsyncTask<Void, Void, HttpBundle> {

                private CloudServersException exception;

                @Override

                protected HttpBundle doInBackground(Void... arg0) {

                        HttpBundle bundle = null;

                        try {

                                bundle = (new ContainerManager(context)).create(containerName.getText());

                        } catch (CloudServersException e) {

                                exception = e;

                        }

                        return bundle;

                }

                @Override

                protected void onPostExecute(HttpBundle bundle) {

                        HttpResponse response = bundle.getResponse();

                        if (response != null) {

                                int statusCode = response.getStatusLine().getStatusCode();

                                if (statusCode == 201) {

                                        setResult(Activity.RESULT_OK);

                                        finish();

                                } else {

                                        CloudServersException cse = parseCloudServersException(response);

                                        if ("".equals(cse.getMessage())) {

                                                startFileError("There was a problem creating your container.", bundle);

                                        } else {

                                                //if container with same name already exists

                                                showToast("There was a problem creating your container: " + cse.getMessage() + " Check container name and try again");

                                        }

                                }

                        } else if (exception != null) {

                                startFileError("There was a problem creating your container: " + exception.getMessage()+" Check container name and try again", bundle);                                

                        }

                        finish();

                }

        }

}