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/*
* Copyright (C) 2010 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.android.camera;
import java.io.File;
import java.io.FileOutputStream;
import android.annotation.TargetApi;
import android.content.ContentResolver;
import android.content.ContentValues;
import android.location.Location;
import android.net.Uri;
import android.os.Build;
import android.os.Environment;
import android.os.StatFs;
import android.provider.MediaStore.Images;
import android.provider.MediaStore.Images.ImageColumns;
import android.provider.MediaStore.MediaColumns;
import android.util.Log;
import com.android.camera.data.LocalData;
import com.android.camera.exif.ExifInterface;
import com.android.camera.util.ApiHelper;
public class Storage {
private static final String TAG = "CameraStorage";
public static final String DCIM =
Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_DCIM).toString();
public static final String DIRECTORY = DCIM + "/Camera";
// Match the code in MediaProvider.computeBucketValues().
public static final String BUCKET_ID =
String.valueOf(DIRECTORY.toLowerCase().hashCode());
public static final long UNAVAILABLE = -1L;
public static final long PREPARING = -2L;
public static final long UNKNOWN_SIZE = -3L;
public static final long LOW_STORAGE_THRESHOLD = 50000000;
@TargetApi(Build.VERSION_CODES.JELLY_BEAN)
private static void setImageSize(ContentValues values, int width, int height) {
// The two fields are available since ICS but got published in JB
if (ApiHelper.HAS_MEDIA_COLUMNS_WIDTH_AND_HEIGHT) {
values.put(MediaColumns.WIDTH, width);
values.put(MediaColumns.HEIGHT, height);
}
}
public static void writeFile(String path, byte[] data) {
FileOutputStream out = null;
try {
out = new FileOutputStream(path);
out.write(data);
} catch (Exception e) {
Log.e(TAG, "Failed to write data", e);
} finally {
try {
out.close();
} catch (Exception e) {
}
}
}
// Save the image and add it to media store.
public static Uri addImage(ContentResolver resolver, String title,
long date, Location location, int orientation, ExifInterface exif,
byte[] jpeg, int width, int height) {
// Save the image.
String path = generateFilepath(title);
if (exif != null) {
try {
exif.writeExif(jpeg, path);
} catch (Exception e) {
Log.e(TAG, "Failed to write data", e);
}
} else {
writeFile(path, jpeg);
}
return addImage(resolver, title, date, location, orientation,
jpeg.length, path, width, height);
}
// Add the image to media store.
public static Uri addImage(ContentResolver resolver, String title,
long date, Location location, int orientation, int jpegLength,
String path, int width, int height) {
// Insert into MediaStore.
ContentValues values = new ContentValues(9);
values.put(ImageColumns.TITLE, title);
values.put(ImageColumns.DISPLAY_NAME, title + ".jpg");
values.put(ImageColumns.DATE_TAKEN, date);
values.put(ImageColumns.MIME_TYPE, LocalData.MIME_TYPE_JPEG);
// Clockwise rotation in degrees. 0, 90, 180, or 270.
values.put(ImageColumns.ORIENTATION, orientation);
values.put(ImageColumns.DATA, path);
values.put(ImageColumns.SIZE, jpegLength);
setImageSize(values, width, height);
if (location != null) {
values.put(ImageColumns.LATITUDE, location.getLatitude());
values.put(ImageColumns.LONGITUDE, location.getLongitude());
}
Uri uri = null;
try {
uri = resolver.insert(Images.Media.EXTERNAL_CONTENT_URI, values);
} catch (Throwable th) {
// This can happen when the external volume is already mounted, but
// MediaScanner has not notify MediaProvider to add that volume.
// The picture is still safe and MediaScanner will find it and
// insert it into MediaProvider. The only problem is that the user
// cannot click the thumbnail to review the picture.
Log.e(TAG, "Failed to write MediaStore" + th);
}
return uri;
}
public static void deleteImage(ContentResolver resolver, Uri uri) {
try {
resolver.delete(uri, null, null);
} catch (Throwable th) {
Log.e(TAG, "Failed to delete image: " + uri);
}
}
public static String generateFilepath(String title) {
return DIRECTORY + '/' + title + ".jpg";
}
public static long getAvailableSpace() {
String state = Environment.getExternalStorageState();
Log.d(TAG, "External storage state=" + state);
if (Environment.MEDIA_CHECKING.equals(state)) {
return PREPARING;
}
if (!Environment.MEDIA_MOUNTED.equals(state)) {
return UNAVAILABLE;
}
File dir = new File(DIRECTORY);
dir.mkdirs();
if (!dir.isDirectory() || !dir.canWrite()) {
return UNAVAILABLE;
}
try {
StatFs stat = new StatFs(DIRECTORY);
return stat.getAvailableBlocks() * (long) stat.getBlockSize();
} catch (Exception e) {
Log.i(TAG, "Fail to access external storage", e);
}
return UNKNOWN_SIZE;
}
/**
* OSX requires plugged-in USB storage to have path /DCIM/NNNAAAAA to be
* imported. This is a temporary fix for bug#1655552.
*/
public static void ensureOSXCompatible() {
File nnnAAAAA = new File(DCIM, "100ANDRO");
if (!(nnnAAAAA.exists() || nnnAAAAA.mkdirs())) {
Log.e(TAG, "Failed to create " + nnnAAAAA.getPath());
}
}
}
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