Android Open Source - TextFileXpanderAndroid Dropbox

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License

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

//
//  Dropbox.java/*  w  w  w  .j  av a 2s  .co m*/
//  TextFileXpander
//
//  Created by wanswings on 2014/08/25.
//  Copyright (c) 2014 wanswings. All rights reserved.
//
package com.wanswings.TextFileXpander;

import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;
import java.util.Locale;

import android.content.Context;
import android.content.Intent;
import android.net.ConnectivityManager;
import android.net.NetworkInfo;
import android.util.Log;
import android.widget.Toast;

import com.dropbox.client2.DropboxAPI.Entry;
import com.dropbox.client2.exception.DropboxException;

public class Dropbox extends Storage {

  private String classNameForLog;
  private AuthCommon common;

  public Dropbox(Context ct, boolean refresh, StorageListenerInterface listener) {
    super(ct, refresh, listener);

    classNameForLog = this.getClass().getName() + "...";
    common = (AuthCommon)ct.getApplicationContext();
    storageListener.readyToStartDropboxAuthActivity();
  }

  @Override
  public boolean onNewIntent(Intent intent) {
    boolean result = true;

    if (!isStorageAvailable()) {
      // offline
      result = false;
    }
    else if (intent != null) {
      boolean fromDropbox = intent.getBooleanExtra(DropboxAuthActivity.EXTRA_FROM_DROPBOX, false);
      Log.i(packageName, classNameForLog + DropboxAuthActivity.EXTRA_FROM_DROPBOX + "..." + fromDropbox);
      if (fromDropbox) {
        result = intent.getBooleanExtra(DropboxAuthActivity.EXTRA_RESULT_DROPBOX, false);
        if (result) {
          selectDir();
        }
      }
    }
    return result;
  }

  @Override
  public boolean isStorageAvailable() {
    boolean result = false;

    ConnectivityManager cm = (ConnectivityManager)mContext.getSystemService(Context.CONNECTIVITY_SERVICE);
    NetworkInfo info = cm.getActiveNetworkInfo();
    if (info != null && info.isConnected()) {
      // online
      result = true;
    }
    else {
      Toast.makeText(mContext, R.string.error_internet_not_available, Toast.LENGTH_LONG).show();
    }

    return result;
  }

  @Override
  public void close() {
    if (common.mDropboxAPI != null && common.mDropboxAPI.getSession().isLinked()) {
      common.mDropboxAPI.getSession().unlink();
    }
    common.mDropboxAPI = null;

    super.close();
  }

  @Override
  protected List<String> getEntriesAPI(boolean isDir, String tPath) {
    List<String> result = new ArrayList<String>();

    if (isStorageAvailable() && common.mDropboxAPI != null && common.mDropboxAPI.getSession().isLinked()) {
      try {
        Entry rootEntry = common.mDropboxAPI.metadata(tPath, 500, null, true, null);
        List<Entry> entries = rootEntry.contents;
        for (final Entry entry : entries) {
          if (isDir && entry.isDir) {
            result.add(entry.fileName());
          }
          else if (!isDir && !entry.isDir) {
            if (entry.fileName().toLowerCase(Locale.ENGLISH).endsWith(TEXT_FILE_EXTENSION)) {
              result.add(entry.fileName());
            }
          }
        }
      }
      catch (DropboxException e) {
        Log.e(packageName, classNameForLog + e.toString());
      }
    }
    return result;
  }

  @Override
  protected boolean getFileAPI(String fpath, String fname) {
    boolean result = false;

    if (isStorageAvailable() && common.mDropboxAPI != null && common.mDropboxAPI.getSession().isLinked()) {
      FileOutputStream fos = null;
      try {
        fos = mContext.openFileOutput(fname, Context.MODE_PRIVATE);
        common.mDropboxAPI.getFile(fpath + File.separator + fname, null, fos, null);
        result = true;
      }
      catch (DropboxException e) {
        Log.e(packageName, classNameForLog + e.toString());
      }
      catch (IOException e) {
        Log.e(packageName, classNameForLog + e.toString());
      }
      finally {
        try {
          if (fos != null) fos.close();
        }
        catch (IOException e) {
          Log.e(packageName, classNameForLog + e.toString());
        }
      }
    }
    return result;
  }
}
Java Source Code List
