Android Open Source - Visu Google Drive Manager

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License

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

package com.ufavaloro.android.visu.storage.googledrive;
// ww w.  j a v  a2 s.  co m
import java.io.DataInputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.util.Calendar;
import java.util.TimeZone;

import android.annotation.SuppressLint;
import android.app.Activity;
import android.os.Handler;
import android.os.Message;

import com.google.android.gms.common.api.GoogleApiClient;
import com.google.android.gms.drive.Drive;
import com.google.android.gms.drive.DriveFolder;
import com.google.android.gms.drive.DriveId;
import com.ufavaloro.android.visu.storage.datatypes.StudyData;

public class GoogleDriveManager {
  
  GoogleDriveClient mGoogleDriveClient;
  Handler mHandler;
  
  public GoogleDriveManager(Activity contextActivity, Handler mHandler) {
    mGoogleDriveClient = new GoogleDriveClient(contextActivity, mGoogleDriveClientHandler);
    this.mHandler = mHandler;
  }
  
  // Gettr de GoogleApiClient
  public GoogleApiClient getGoogleApiClient() {
    return mGoogleDriveClient.getGoogleApiClient();
  }

  public void loadFile(DriveId driveId) {
    mGoogleDriveClient.loadFile(driveId);
  }
  
  public void createStudyFolders(StudyData[] studyData) {
    
    // Obtengo nombre y apellido del paciente y genero carpeta
    String patientName = new String(studyData[0].getPatientData().getPatientName());
    String patientSurname = new String(studyData[0].getPatientData().getPatientSurname());
    String patient =  patientSurname + "_" + patientName;
    
    createPatientFolder(patient);
    
    
    // Obtengo fecha y creo carpeta
      Calendar cal = Calendar.getInstance(TimeZone.getDefault());
    int day = cal.get(Calendar.DATE);
    int month = cal.get(Calendar.MONTH);
    int year = cal.get(Calendar.YEAR);
    String date = day + "-" + month + "-" + year;
    
    createDateFolder(date);
    
    
    // Obtengo el nombre del estudio y creo carpeta
    String studyName = new String(studyData[0].getPatientData().getStudyName());

    createStudyNameFolder(studyName);
    
  }
  
  private void createRootFolder() {

    DriveFolder parentFolder = Drive.DriveApi.getRootFolder(getGoogleApiClient());
    String folderName = "Visualizador";
    
    mGoogleDriveClient.createFolder(folderName, parentFolder);
    
  }
  
  private void createStudiesFolder() {
    
    while(mGoogleDriveClient.isCreatingFolder());
    
    // Parent Folder = .Visualizador
    DriveFolder parentFolder = mGoogleDriveClient.getLastFolder();
      
    // Nombre de la carpeta
    String folderName = "Estudios";
      
    mGoogleDriveClient.createFolder(folderName, parentFolder);
  
  }
  
  public void createPatientFolder(String patient) {
    
    while(mGoogleDriveClient.isCreatingFolder());

    // Parent Folder = _Estudios
    DriveFolder parentFolder = mGoogleDriveClient.getLastFolder();
      
    // Nombre de la carpeta
    String folderName = patient;
      
    mGoogleDriveClient.createFolder(folderName, parentFolder);
    
  }
  
  public void createDateFolder(String date) {
    
    while(mGoogleDriveClient.isCreatingFolder());
    
    // Parent Folder = _Estudios
    DriveFolder parentFolder = mGoogleDriveClient.getLastFolder();
      
    // Nombre de la carpeta
    String folderName = date;
      
    mGoogleDriveClient.createFolder(folderName, parentFolder);
  
    
  }
  
  public void createStudyNameFolder(String studyName) {
    
    while(mGoogleDriveClient.isCreatingFolder());
    
    // Parent Folder = _Estudios
    DriveFolder parentFolder = mGoogleDriveClient.getLastFolder();
      
    // Nombre de la carpeta
    String folderName = studyName;
      
    mGoogleDriveClient.createFolder(folderName, parentFolder);
    
  }
  
  public void createStudyFiles(StudyData[] studyData) {
    
    while(mGoogleDriveClient.isCreatingFile());
    
    // Parent Folder = _Estudios
    DriveFolder folder = mGoogleDriveClient.getLastFolder();
          
    for(int i = 0; i < studyData.length; i++) {
      
      if(studyData[i].isMarkedForStoring() == true) {
        
        while(mGoogleDriveClient.isCreatingFile());
  
        File file = studyData[i].getStorageData().getStudyFile();
        String fileName = file.getName();
        
        FileInputStream fileInputStream;
        
        try {
        
          fileInputStream = new FileInputStream(file);
          DataInputStream dataInputStream = new DataInputStream(fileInputStream);
          
          byte[] fileOutputBuffer = new byte[dataInputStream.available()];
          dataInputStream.readFully(fileOutputBuffer);
          
          dataInputStream.close();
          
          mGoogleDriveClient.createFile(fileOutputBuffer, fileName, folder);
        
        } catch (IOException e) {}
      }
    }
  }
  
  private void onConnected() {
    mHandler.obtainMessage(GoogleDriveManagerMessage.GOOGLE_DRIVE_CONNECTED.getValue()).sendToTarget();
    createRootFolder();
    createStudiesFolder();
  }
  
  private void onDisconnected() {
    mHandler.obtainMessage(GoogleDriveManagerMessage.GOOGLE_DRIVE_DISCONNECTED.getValue()).sendToTarget();
    if(mGoogleDriveClient != null) {
      mGoogleDriveClient.connect();
    }
  }
  
  private void onConnectionFailed(Message msg) {
    mHandler.obtainMessage(GoogleDriveManagerMessage.GOOGLE_DRIVE_CONNECTION_FAILED.getValue()
                 , -1, -1, msg).sendToTarget();
  }
  
  public void connect() {
    mGoogleDriveClient.connect();
  }
  
  public void disconnect() {
    mGoogleDriveClient.disconnect();
  }
  
  public boolean isConnected() {
    return mGoogleDriveClient.isConnected();
  }
  
  private void onConnectionSuspended() {
    mHandler.obtainMessage(GoogleDriveManagerMessage.GOOGLE_DRIVE_SUSPENDED.getValue()).sendToTarget();
  }
  
  private void onFileOpen(Object object) {
    mHandler.obtainMessage(GoogleDriveManagerMessage.GOOGLE_DRIVE_FILE_OPEN.getValue(), -1, -1, object)
                   .sendToTarget();
  }
  
  // Handler para recibir las notificaciones de cuando se cree o abra un archivo/carpeta
  @SuppressLint("HandlerLeak")
  private final Handler mGoogleDriveClientHandler = new Handler() {
    
      // M?todo para manejar el mensaje
    @Override
    public void handleMessage(Message msg) {
      
      // Tipo de mensaje recibido
      GoogleDriveClientMessage googleDriveClientMessage = GoogleDriveClientMessage.values(msg.what);
      
      switch (googleDriveClientMessage) {
        
        // Succesfully connected to Google Play Services
        case CONNECTED:
          onConnected();
          break;
        
        // Disconnected from Google Play Services
        case DISCONNECTED:
          onDisconnected();
          break;
          
        // Connection to Google Play Services is suspended
        case CONNECTION_SUSPENDED:
          onConnectionSuspended();
          break;
        
        // Connection failed
        case CONNECTION_FAILED:
          onConnectionFailed(msg);
          
        // Folder created succesfully
        case FOLDER_CREATED:
          break;
          
        // Folder creaton failed
        case FOLDER_NOT_CREATED:
          break;
          
        // Folder already exists
        case FOLDER_ALREADY_EXISTS:
          break;
        
        // Folder already exists, but iterate 
        case FOLDER_ITERATE:
          
          break;
        // File created succesfully
        case FILE_CREATED:
          break;
          
        // File creation failed
        case FILE_NOT_CREATED:
          break;
        
        // File already exists
        case FILE_ALREADY_EXISTS:
          break;
        
        // File opened succesfully
        case FILE_OPENED:
          onFileOpen(msg.obj);
          break;
          
        // File opening failed
        case FILE_NOT_OPENED:
          break;
      
        // Default case
        default: 
          break;
      
      }//switch
    }
  };//mGoogleDriveHandler

}
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