Android Open Source - android-rackspacecloud Add File Activity

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License

The source code is released under:
MIT License
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Java Source Code

package com.rackspacecloud.android;
//from   w w  w . ja v a  2 s . c om
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 com.rackspace.cloud.files.api.client.ContainerObjectManager;
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;

import android.app.Activity;
import android.app.AlertDialog;
import android.app.ProgressDialog;
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;

public class AddFileActivity extends GaActivity implements OnClickListener{
  
  private Context context;  
  private EditText fileName;
  private EditText contents;
  private String containerName;
  private String path;
  private boolean isAdding;
  private ProgressDialog dialog;

  /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        trackPageView(PAGE_ADD_OBJECT);
        setContentView(R.layout.addtextfile);
        context = getApplicationContext();
        containerName = (String) this.getIntent().getExtras().get("Cname");
        path = (String) this.getIntent().getExtras().get("curPath");
        setUpDialog(savedInstanceState);
        setUpInputs();
    }
    
    private void setUpInputs(){
      ((Button) findViewById(R.id.new_file_button)).setOnClickListener(this);
      fileName = ((EditText)findViewById(R.id.file_name_text));
      fileName.append(".txt");
      contents = ((EditText)findViewById(R.id.new_file_text));
    }
    
    private void setUpDialog(Bundle savedInstanceState){
        isAdding = savedInstanceState != null && savedInstanceState.containsKey("isAdding") 
        && savedInstanceState.getBoolean("isAdding");
        if(isAdding){
          showDialog();
        }
        
    }
    
    @Override
  protected void onSaveInstanceState(Bundle outState) {
    super.onSaveInstanceState(outState);
    outState.putBoolean("isAdding", isAdding);
    if(isAdding){
      hideDialog();
    }
  }
    
    public void onClick(View arg0) {
    if ("".equals(fileName.getText().toString())) {
      showAlert("Required Fields Missing", " File name is required.");
    } else {
      //showActivityIndicators();
      trackEvent(CATEGORY_FILE, EVENT_CREATE, "", -1);
      new SaveFileTask().execute((Void[]) null);
    }
  }
    
    //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 showAlert(String title, String message) {
      try {
    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();
      } catch (Exception e) {
        e.printStackTrace();
      }
    }
  
  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 SaveFileTask extends AsyncTask<Void, Void, HttpBundle> {
      private CloudServersException exception;
      
      @Override
    protected void onPreExecute(){
      isAdding = true;
      showDialog();
    }
      
      @Override
    protected HttpBundle doInBackground(Void... arg0) {
        HttpBundle bundle = null;
      try {
        bundle = (new ContainerObjectManager(context)).addObject(containerName, path, fileName.getText().toString(), "text/plain", contents.getText().toString());
      } catch (CloudServersException e) {
        exception = e;
      }
      return bundle;
    }
      
    @Override
    protected void onPostExecute(HttpBundle bundle) {
      isAdding = false;
      hideDialog();
      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 file.", bundle);
          } else {
            startFileError("There was a problem creating your file: " + cse.getMessage() + " Check file name and try again", bundle);
          }
        }
      } else if (exception != null) {
        startFileError("There was a problem creating your file: " + exception.getMessage()+" Check file name and try again", bundle);        
      }      
    }
    }
  
  private void showDialog() {
    if(dialog == null || !dialog.isShowing()){
      dialog = ProgressDialog.show(AddFileActivity.this, "", "Adding File...", true);
    }
    }
    
    private void hideDialog() {
      if(dialog != null){
        dialog.dismiss();
      }
    }
}
Java Source Code List
