どのように例外

どのように例外

package com.donateblood.blooddonation; 
 

 
/** 
 
* Created by YouCaf Iqbal on 4/5/2016. 
 
*/ 
 
import android.app.ProgressDialog; 
 
import android.content.Intent; 
 
import android.os.AsyncTask; 
 
import android.os.Bundle; 
 
import android.support.v7.app.AppCompatActivity; 
 
import android.util.Log; 
 
import android.view.View; 
 
import android.widget.ArrayAdapter; 
 
import android.widget.Button; 
 
import android.widget.EditText; 
 
import android.widget.Spinner; 
 
import android.widget.TextView; 
 
import android.widget.Toast; 
 

 
import com.mongodb.BasicDBObject; 
 
import com.mongodb.DB; 
 
import com.mongodb.DBCollection; 
 
import com.mongodb.DBCursor; 
 
import com.mongodb.MongoClient; 
 
import com.mongodb.MongoClientURI; 
 
import butterknife.ButterKnife; 
 
import butterknife.InjectView; 
 
public class SignupActivity extends AppCompatActivity { 
 
    private Spinner mySpinner; private String bloodgroup,name,password,number,location,email; 
 
    @InjectView(R.id.input_name) EditText _nameText; 
 
    @InjectView(R.id.input_email) EditText _emailText; 
 
    @InjectView(R.id.input_password) EditText _passwordText; 
 
    @InjectView(R.id.btn_signup) Button _signupButton; 
 
    @InjectView(R.id.link_login) TextView _loginLink; 
 
    @InjectView(R.id.input_location) TextView _locText; 
 
    @InjectView(R.id.input_number) TextView _numText; 
 
    DB db; boolean duplicate=false; 
 
    DBCursor cursor; 
 
    DBCollection collection; 
 
    Database dbobj = new Database(); 
 

 
    @Override 
 
    public void onCreate(Bundle savedInstanceState) { 
 
     super.onCreate(savedInstanceState); 
 
     setContentView(R.layout.activity_signup); 
 
     Spinner spinner =(Spinner) findViewById(R.id.spinner); 
 
     String[] list = getResources().getStringArray(R.array.blood_type); 
 
     ArrayAdapter<String> adapter = new ArrayAdapter<String>(this,R.layout.spinner_layout,R.id.txt,list); 
 
     spinner.setAdapter(adapter); 
 
     ButterKnife.inject(this); 
 
     _signupButton.setOnClickListener(new View.OnClickListener() { 
 
      @Override 
 
      public void onClick(View v) { 
 
       signup(); 
 
      } 
 
     }); 
 
     _loginLink.setOnClickListener(new View.OnClickListener() { 
 
      @Override 
 
      public void onClick(View v) { 
 
       // Finish the registration screen and return to the Login activity 
 
       finish(); 
 
      } 
 
     }); 
 
    } 
 

 
    public void signup() { 
 

 
     if (validate()==false) { 
 
      onSignupFailed(); 
 
      return; 
 
     } 
 
     if(CheckEmailDuplicate()){ 
 
      Toast.makeText(getBaseContext(), "Account with this Email already exists", Toast.LENGTH_LONG).show(); 
 
      return; 
 
     } 
 
     _signupButton.setEnabled(false); 
 
     dbAsync signupThread = new dbAsync(); 
 
     signupThread.execute(); 
 
    } 
 

 
    public void onSignupSuccess() { 
 

 
     _signupButton.setEnabled(true); 
 
     setResult(RESULT_OK, null); 
 
     Intent intent = new Intent(getApplicationContext(), LoginActivity.class); 
 
     startActivity(intent); 
 
     finish(); 
 
    } 
 

 
    public void onSignupFailed() { 
 
     Toast.makeText(getBaseContext(), "Sign Up failed", Toast.LENGTH_LONG).show(); 
 
     _signupButton.setEnabled(true); 
 
    } 
 

 
    public boolean validate() { 
 
     boolean valid = true; 
 
     GetUserDetails(); 
 
     if (name.isEmpty() || name.length() < 3) { 
 
      _nameText.setError("at least 3 characters"); 
 
      valid = false; 
 
     } else { 
 
      _nameText.setError(null); 
 
     } 
 

 
     if (email.isEmpty() || !android.util.Patterns.EMAIL_ADDRESS.matcher(email).matches()) { 
 
      _emailText.setError("Enter a valid email address"); 
 
      valid = false; 
 
     } else { 
 
      _emailText.setError(null); 
 
     } 
 

 
     if (password.isEmpty() || password.length() < 4 || password.length() > 10) { 
 
      _passwordText.setError("between 4 and 10 alphanumeric characters"); 
 
      valid = false; 
 
     } else { 
 
      _passwordText.setError(null); 
 
     } 
 

 
     if (location.isEmpty()) { 
 
      _locText.setError("Enter location"); 
 
      valid = false; 
 
     } else { 
 
      _locText.setError(null); 
 
     } 
 
     if (number.isEmpty()) { 
 
      _numText.setError("Enter valid number"); 
 
      valid = false; 
 
     } else { 
 
      _numText.setError(null); 
 
     } 
 

 
     return valid; 
 
    } 
 

 
    public class dbAsync extends AsyncTask<Void,Void,Void> { 
 

 
     private ProgressDialog pDialog; 
 
     @Override 
 
     protected void onPreExecute() { 
 
      super.onPreExecute(); 
 
      pDialog = new ProgressDialog(SignupActivity.this); 
 
      pDialog.setMessage("Creating Account"); 
 
      pDialog.setIndeterminate(false); 
 
      pDialog.setCancelable(true); 
 
      pDialog.show(); 
 
     } 
 
     @Override 
 
     protected Void doInBackground(Void... voids) { 
 
      GetUserDetails(); 
 
      dbobj.insertUser(name,email,password,location,number,bloodgroup); 
 
      return null; 
 
     } 
 
     @Override 
 
     protected void onPostExecute(Void aVoid) { 
 
      super.onPostExecute(aVoid); 
 
      pDialog.dismiss(); 
 
      Toast.makeText(getBaseContext(), "Created Successfully", Toast.LENGTH_LONG).show(); 
 
      onSignupSuccess(); 
 
     } 
 
    } 
 

 
    public void GetUserDetails(){ 
 
     mySpinner=(Spinner) findViewById(R.id.spinner); 
 
     bloodgroup = mySpinner.getSelectedItem().toString(); 
 
     name = _nameText.getText().toString(); 
 
     email = _emailText.getText().toString(); 
 
     password = _passwordText.getText().toString(); 
 
     location = _locText.getText().toString(); 
 
     number = _numText.getText().toString(); 
 
    } 
 
    public boolean CheckEmailDuplicate(){ 
 

 
     email = _emailText.getText().toString(); 
 
     db = dbobj.getconnection(); 
 
     collection= db.getCollection("UserDetails"); 
 
     BasicDBObject query = new BasicDBObject(); 
 
     query.put("email", email); 
 
     cursor = collection.find(query); 
 
     if(cursor.hasNext()){ 
 
      duplicate=true; 
 
     } 
 
     return duplicate; 
 
    } 
 
}

私が何をするか分からないがMongoDBのタイムアウトを処理します。私はアンドロイドの開発には新しく、私はデータベースとしてmongodbを使用しています。どのように私はこのタイムアウト例外を解決して自分のコードが動作するようにすることができます。私はこの問題を調査してみましたが、シンプルでわかりやすい解決策は見つかりませんでした。ヘルプは高く評価されます。前もって感謝します。