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

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

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

/** 

 * 

 * @author Phillip Toohill

 *

 */

public class AddContainerActivity extends Activity implements  OnClickListener {

        private EditText fileName;

        private Context context;        

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

    @Override

    public void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        context = getApplicationContext();

        setContentView(R.layout.createcontainer);

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

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

    }

        public void onClick(View arg0) {

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

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

                } else {

                        showActivityIndicators();

                                new SaveFileTask().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 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() {

            setActivityIndicatorsVisibility(View.VISIBLE);

    }

    private void hideActivityIndicators() {

            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 class SaveFileTask extends AsyncTask<Void, Void, HttpResponse> {

            private CloudServersException exception;

            @Override

                protected HttpResponse doInBackground(Void... arg0) {

                        HttpResponse resp = null;

                        try {

                                resp = (new ContainerManager(context)).create(fileName.getText());

                        } catch (CloudServersException e) {

                                exception = e;

                        }

                        return resp;

                }

                @Override

                protected void onPostExecute(HttpResponse response) {

                        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())) {

                                                showAlert("Error", "There was a problem creating your container.");

                                        } else {

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

                                        }

                                }

                        } else if (exception != null) {

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

                        }                        

                }

    }

        }