Android Open Source - Swinedroid Network Runnable

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License

The source code is released under:

GNU General Public License

Java Source Code

package com.legind.swinedroid.NetworkRunnable;
//  w w w .java2s  . c  o  m
import java.io.IOException;

import org.xml.sax.SAXException;

import android.content.ComponentName;
import android.content.Intent;
import android.content.ServiceConnection;
import android.content.DialogInterface.OnCancelListener;
import android.os.Bundle;
import android.os.Handler;
import android.os.IBinder;
import android.os.Message;
import android.util.Log;

import com.legind.sqlite.ServerDbAdapter;
import com.legind.swinedroid.ServerHashDialog;
import com.legind.swinedroid.RequestService.Request;
import com.legind.swinedroid.xml.XMLHandlerException;
import com.legind.web.WebTransport.WebTransportException;


public class NetworkRunnable implements Runnable{
  private ServerDbAdapter mDbHelper;
  private Request mBoundRequest;
  private final NetworkRunnableUniqueRequires nrur;
  private final NetworkRunnableBindRequires nrbr;
  private final int DOCUMENT_VALID = 0;
  private final int IO_ERROR = 1;
  private final int XML_ERROR = 2;
  private final int SERVER_ERROR = 3;
  private final int CERT_ERROR = 4;
  private final int CERT_REJECTED = 0;
  private final int CERT_ACCEPTED = 1;
  private final int HAS_MANAGER_YES = 0;
  private final int HAS_MANAGER_NO = 1;
  private final String LOG_TAG = "com.legind.swinedroid.SuperClass.NetworkRunnable";
  private int mHasManager;

  public NetworkRunnable(NetworkRunnableRequires nrr){
    this.nrur = (NetworkRunnableUniqueRequires) nrr;
    this.nrbr = (NetworkRunnableBindRequires) nrr;
    mDbHelper = new ServerDbAdapter(nrbr.getContext());
    mDbHelper.open();
    mHasManager = HAS_MANAGER_NO;
  }
  
  public NetworkRunnable(NetworkRunnableUniqueRequires nrur, NetworkRunnableBindRequires nrbr, ServerDbAdapter dbHelper, Request boundRequest){
    this.nrur = nrur;
    this.nrbr = nrbr;
    mDbHelper = dbHelper;
    mBoundRequest = boundRequest;
    mHasManager = HAS_MANAGER_YES;
  }

  private ServiceConnection mConnection = new ServiceConnection() {
    public void onServiceConnected(ComponentName className, IBinder service) {
        mBoundRequest = ((Request.RequestBinder)service).getService();
        nrbr.onBoundRequestSet();
    }
    
    public void onServiceDisconnected(ComponentName className) {
      mBoundRequest = null;
    }
  };
    
  public void startRequestService() {
        Intent newIntent = new Intent(nrbr.getContext(), Request.class);
        newIntent.putExtra(Request.ROW_ID_TAG, nrbr.getRowId());
        nrbr.startService(newIntent);
        nrbr.bindService(newIntent, mConnection, 0);
  }
  
  public void close(){
    if(mHasManager == HAS_MANAGER_NO){
      mDbHelper.close();
      if(mBoundRequest != null)
        nrbr.unbindService(mConnection);
    }
  }
  
  public Request getBoundRequest(){
    return mBoundRequest;
  }
    
  public void run() {
    sendRequestHandleResponse();
  }
  
  public void sendRequestHandleResponse(){
    try{
      mBoundRequest.openWebTransportConnection();
      if(!mBoundRequest.inspectCertificate()){
        handler.sendEmptyMessage(CERT_ERROR);
      } else {
        nrur.onCertificateInspectVerified();
        handler.sendEmptyMessage(DOCUMENT_VALID);
      }
    } catch (IOException e) {
      Log.e(LOG_TAG, e.toString());
      handler.sendEmptyMessage(IO_ERROR);
    } catch (SAXException e) {
      Log.e(LOG_TAG, e.toString());
      handler.sendEmptyMessage(XML_ERROR);
    } catch (XMLHandlerException e){
      Log.e(LOG_TAG, e.toString());
      Message msg = Message.obtain();
      msg.setTarget(handler);
      msg.what = SERVER_ERROR;
      msg.obj = e.getMessage();
      msg.sendToTarget();
    } catch (WebTransportException e){
      mBoundRequest.closeWebTransportConnection();
      sendRequestHandleResponse();
    }
  }

  // Catch and display any errors sent to the handler, otherwise populate all statistics fields
  private volatile Handler handler = new Handler() {
    @Override
    public void handleMessage(Message message) {
      nrur.onHandleMessageBegin();
      OnCancelListener cancelListener = nrur.getCancelListener();
      switch(message.what){
        case IO_ERROR:
          nrur.getEMH().DisplayErrorMessage("Could not connect to server.  Please ensure that your settings are correct and try again later.",cancelListener);
        break;
        case XML_ERROR:
          nrur.getEMH().DisplayErrorMessage("Server responded with an invalid XML document.  Please try again later.",cancelListener);
        break;
        case SERVER_ERROR:
          nrur.getEMH().DisplayErrorMessage((String) message.obj,cancelListener);
        break;
        case CERT_ERROR:
          /*
           * If there is a certificate mismatch, display the ServerHashDialog activity
           */
          // must set this to true, in case onPause happens for child activity
          nrur.onCertErrorBegin();
          //mBoundRequest.displayCertificateDialog(ServerView.this);
              Intent i = new Intent(nrbr.getContext(), ServerHashDialog.class);
              i.putExtra("SHA1", mBoundRequest.getLastServerCertSHA1());
              i.putExtra("MD5", mBoundRequest.getLastServerCertMD5());
              i.putExtra("CERT_INVALID", (mBoundRequest.getLastServerCertSHA1() == null && mBoundRequest.getLastServerCertMD5() == null ? false : true));
              nrur.callHashDialog(i);
        break;
        case DOCUMENT_VALID:
          nrur.onDocumentValidReturned();
        break;
      }

    }
  };
  
  public void certificateActivityResult(int requestCode, int resultCode, Intent intent, int hashDialogActivity){
        if(requestCode == hashDialogActivity){
      /*
       * The ServerHashDialog activity has finished.  if the cert is rejected, finish this activity.
       * If accepted, try connecting to the server all over again.
       */
      switch(resultCode){
        case CERT_REJECTED:
          nrbr.finish();
        break;
        case CERT_ACCEPTED:
          Bundle extras = intent.getExtras();
          mDbHelper.updateServerHashes(nrbr.getRowId(), extras.getString("MD5"), extras.getString("SHA1"));
          mBoundRequest.fetchServerHashes();
          Thread thread = new Thread(this);
          thread.start();
        break;
      }
        }
  }
}

Java Source Code List

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