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authorsteckbrief <steckbrief@chefmail.de>2015-11-06 20:23:43 +0100
committersteckbrief <steckbrief@chefmail.de>2015-11-06 20:23:43 +0100
commit8838a5094812e0540ccfef3334e49e1a5c1a564b (patch)
tree353f4513b8f38b77fd4219c2d92a46b0f87694ff /src/main/java/de/thedevstack/conversationsplus/persistance/FileBackend.java
parentb22d863c362bb6492240700c0f69f1a5d926f46b (diff)
FileBackend splitted into several util classes for separate concerns: AvatarUtil, StreamUtil, ImageUtil. Unused imports removed.
Diffstat (limited to 'src/main/java/de/thedevstack/conversationsplus/persistance/FileBackend.java')
-rw-r--r--src/main/java/de/thedevstack/conversationsplus/persistance/FileBackend.java401
1 files changed, 34 insertions, 367 deletions
diff --git a/src/main/java/de/thedevstack/conversationsplus/persistance/FileBackend.java b/src/main/java/de/thedevstack/conversationsplus/persistance/FileBackend.java
index da5cbf09..7ee67a15 100644
--- a/src/main/java/de/thedevstack/conversationsplus/persistance/FileBackend.java
+++ b/src/main/java/de/thedevstack/conversationsplus/persistance/FileBackend.java
@@ -1,7 +1,5 @@
package de.thedevstack.conversationsplus.persistance;
-import java.io.ByteArrayOutputStream;
-import java.io.Closeable;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
@@ -9,58 +7,39 @@ import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.net.URL;
-import java.security.DigestOutputStream;
-import java.security.MessageDigest;
-import java.security.NoSuchAlgorithmException;
import java.text.SimpleDateFormat;
import java.util.Arrays;
import java.util.Date;
import java.util.Locale;
-import android.database.Cursor;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
-import android.graphics.Canvas;
-import android.graphics.Matrix;
-import android.graphics.RectF;
-import android.media.ExifInterface;
import android.net.Uri;
import android.os.Environment;
-import android.provider.MediaStore;
-import android.util.Base64;
-import android.util.Base64OutputStream;
import android.util.Log;
import android.webkit.MimeTypeMap;
-import android.widget.ImageView;
import de.thedevstack.conversationsplus.Config;
+import de.thedevstack.conversationsplus.ConversationsPlusApplication;
import de.thedevstack.conversationsplus.R;
import de.thedevstack.conversationsplus.entities.Transferable;
import de.thedevstack.conversationsplus.entities.DownloadableFile;
import de.thedevstack.conversationsplus.entities.Message;
-import de.thedevstack.conversationsplus.services.XmppConnectionService;
-import de.thedevstack.conversationsplus.utils.CryptoHelper;
-import de.thedevstack.conversationsplus.utils.ExifHelper;
-import de.thedevstack.conversationsplus.utils.FileHelper;
-import de.thedevstack.conversationsplus.xmpp.pep.Avatar;
+import de.thedevstack.conversationsplus.exceptions.FileCopyException;
+import de.thedevstack.conversationsplus.utils.ImageUtil;
+import de.thedevstack.conversationsplus.utils.StreamUtil;
-public class FileBackend {
+public final class FileBackend {
private static int IMAGE_SIZE = 1920;
- private final SimpleDateFormat imageDateFormat = new SimpleDateFormat("yyyyMMdd_HHmmssSSS", Locale.US);
+ private static final SimpleDateFormat imageDateFormat = new SimpleDateFormat("yyyyMMdd_HHmmssSSS", Locale.US);
- private XmppConnectionService mXmppConnectionService;
-
- public FileBackend(XmppConnectionService service) {
- this.mXmppConnectionService = service;
- }
-
- public DownloadableFile getFile(Message message) {
+ public static DownloadableFile getFile(Message message) {
return getFile(message, true);
}
- public DownloadableFile getFile(Message message, boolean decrypted) {
+ public static DownloadableFile getFile(Message message, boolean decrypted) {
String path = message.getRelativeFilePath();
String extension;
if (path != null && !path.isEmpty()) {
@@ -102,50 +81,19 @@ public class FileBackend {
+ "/Conversations/";
}
- public Bitmap resize(Bitmap originalBitmap, int size) {
- int w = originalBitmap.getWidth();
- int h = originalBitmap.getHeight();
- if (Math.max(w, h) > size) {
- int scalledW;
- int scalledH;
- if (w <= h) {
- scalledW = (int) (w / ((double) h / size));
- scalledH = size;
- } else {
- scalledW = size;
- scalledH = (int) (h / ((double) w / size));
- }
- return Bitmap.createScaledBitmap(originalBitmap, scalledW, scalledH, true);
- } else {
- return originalBitmap;
- }
- }
-
- public Bitmap rotate(Bitmap bitmap, int degree) {
- int w = bitmap.getWidth();
- int h = bitmap.getHeight();
- Matrix mtx = new Matrix();
- mtx.postRotate(degree);
- return Bitmap.createBitmap(bitmap, 0, 0, w, h, mtx, true);
- }
-
- public String getOriginalPath(Uri uri) {
- return FileHelper.getRealPathFromUri(uri);
- }
-
- public DownloadableFile copyFileToPrivateStorage(Message message, Uri uri) throws FileCopyException {
+ public static DownloadableFile copyFileToPrivateStorage(Message message, Uri uri) throws FileCopyException {
Log.d(Config.LOGTAG, "copy " + uri.toString() + " to private storage");
- String mime = mXmppConnectionService.getContentResolver().getType(uri);
+ String mime = ConversationsPlusApplication.getInstance().getContentResolver().getType(uri);
String extension = MimeTypeMap.getSingleton().getExtensionFromMimeType(mime);
message.setRelativeFilePath(message.getUuid() + "." + extension);
- DownloadableFile file = mXmppConnectionService.getFileBackend().getFile(message);
+ DownloadableFile file = getFile(message);
file.getParentFile().mkdirs();
OutputStream os = null;
InputStream is = null;
try {
file.createNewFile();
os = new FileOutputStream(file);
- is = mXmppConnectionService.getContentResolver().openInputStream(uri);
+ is = StreamUtil.openInputStreamFromContentResolver(uri);
byte[] buffer = new byte[1024];
int length;
while ((length = is.read(buffer)) > 0) {
@@ -158,19 +106,19 @@ public class FileBackend {
e.printStackTrace();
throw new FileCopyException(R.string.error_io_exception);
} finally {
- close(os);
- close(is);
+ StreamUtil.close(os);
+ StreamUtil.close(is);
}
- Log.d(Config.LOGTAG, "output file name " + mXmppConnectionService.getFileBackend().getFile(message));
+ Log.d(Config.LOGTAG, "output file name " + file);
return file;
}
- public DownloadableFile copyImageToPrivateStorage(Message message, Uri image)
+ public static DownloadableFile copyImageToPrivateStorage(Message message, Uri image)
throws FileCopyException {
- return this.copyImageToPrivateStorage(message, image, 0);
+ return copyImageToPrivateStorage(message, image, 0);
}
- private DownloadableFile copyImageToPrivateStorage(Message message,
+ private static DownloadableFile copyImageToPrivateStorage(Message message,
Uri image, int sampleSize) throws FileCopyException {
DownloadableFile file = getFile(message);
file.getParentFile().mkdirs();
@@ -178,7 +126,7 @@ public class FileBackend {
OutputStream os = null;
try {
file.createNewFile();
- is = mXmppConnectionService.getContentResolver().openInputStream(image);
+ is = StreamUtil.openInputStreamFromContentResolver(image);
os = new FileOutputStream(file);
Bitmap originalBitmap;
@@ -191,10 +139,10 @@ public class FileBackend {
if (originalBitmap == null) {
throw new FileCopyException(R.string.error_not_an_image_file);
}
- Bitmap scaledBitmap = resize(originalBitmap, IMAGE_SIZE);
- int rotation = getRotation(image);
+ Bitmap scaledBitmap = ImageUtil.resize(originalBitmap, IMAGE_SIZE);
+ int rotation = ImageUtil.getRotation(image);
if (rotation > 0) {
- scaledBitmap = rotate(scaledBitmap, rotation);
+ scaledBitmap = ImageUtil.rotate(scaledBitmap, rotation);
}
boolean success = scaledBitmap.compress(Bitmap.CompressFormat.WEBP, 75, os);
@@ -224,286 +172,34 @@ public class FileBackend {
} catch (NullPointerException e) {
throw new FileCopyException(R.string.error_io_exception);
} finally {
- close(os);
- close(is);
- }
- }
-
- private int getRotation(Uri image) {
- InputStream is = null;
- try {
- is = mXmppConnectionService.getContentResolver().openInputStream(image);
- return ExifHelper.getOrientation(is);
- } catch (FileNotFoundException e) {
- return 0;
- } finally {
- close(is);
- }
- }
-
- public Bitmap getThumbnail(Message message, int size, boolean cacheOnly)
- throws FileNotFoundException {
- Bitmap thumbnail = mXmppConnectionService.getBitmapCache().get(
- message.getUuid());
- if ((thumbnail == null) && (!cacheOnly)) {
- File file = getFile(message);
- BitmapFactory.Options options = new BitmapFactory.Options();
- options.inSampleSize = calcSampleSize(file, size);
- Bitmap fullsize = BitmapFactory.decodeFile(file.getAbsolutePath(),options);
- if (fullsize == null) {
- throw new FileNotFoundException();
- }
- thumbnail = resize(fullsize, size);
- try {
- thumbnail = rotate(thumbnail, file.getAbsolutePath());
- } catch (IOException e) {
- throw new FileNotFoundException();
- }
- this.mXmppConnectionService.getBitmapCache().put(message.getUuid(),
- thumbnail);
+ StreamUtil.close(os);
+ StreamUtil.close(is);
}
- return thumbnail;
}
- private Bitmap rotate(Bitmap original, String srcPath) throws IOException {
- try {
- ExifInterface exif = new ExifInterface(srcPath);
- int orientation = exif.getAttributeInt(ExifInterface.TAG_ORIENTATION, ExifInterface.ORIENTATION_UNDEFINED);
- int rotation = 0;
- switch (orientation) {
- case ExifInterface.ORIENTATION_ROTATE_90:
- rotation = 90;
- break;
- case ExifInterface.ORIENTATION_ROTATE_180:
- rotation = 180;
- break;
- case ExifInterface.ORIENTATION_ROTATE_270:
- rotation = 270;
- break;
- }
- if (rotation > 0) {
- return rotate(original, rotation);
- }
- } catch (IOException e) {
- Log.w("filebackend", "Error while rotating image, returning original");
- }
- return original;
- }
-
- public Uri getTakePhotoUri() {
+ public static Uri getTakePhotoUri() {
StringBuilder pathBuilder = new StringBuilder();
pathBuilder.append(Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_DCIM));
pathBuilder.append('/');
pathBuilder.append("Camera");
pathBuilder.append('/');
- pathBuilder.append("IMG_" + this.imageDateFormat.format(new Date()) + ".jpg");
+ pathBuilder.append("IMG_" + imageDateFormat.format(new Date()) + ".jpg");
Uri uri = Uri.parse("file://" + pathBuilder.toString());
File file = new File(uri.toString());
file.getParentFile().mkdirs();
return uri;
}
- public Avatar getPepAvatar(Uri image, int size, Bitmap.CompressFormat format) {
- try {
- Avatar avatar = new Avatar();
- Bitmap bm = cropCenterSquare(image, size);
- if (bm == null) {
- return null;
- }
- ByteArrayOutputStream mByteArrayOutputStream = new ByteArrayOutputStream();
- Base64OutputStream mBase64OutputSttream = new Base64OutputStream(
- mByteArrayOutputStream, Base64.DEFAULT);
- MessageDigest digest = MessageDigest.getInstance("SHA-1");
- DigestOutputStream mDigestOutputStream = new DigestOutputStream(
- mBase64OutputSttream, digest);
- if (!bm.compress(format, 75, mDigestOutputStream)) {
- return null;
- }
- mDigestOutputStream.flush();
- mDigestOutputStream.close();
- avatar.sha1sum = CryptoHelper.bytesToHex(digest.digest());
- avatar.image = new String(mByteArrayOutputStream.toByteArray());
- return avatar;
- } catch (NoSuchAlgorithmException e) {
- return null;
- } catch (IOException e) {
- return null;
- }
- }
-
- public boolean isAvatarCached(Avatar avatar) {
- File file = new File(getAvatarPath(avatar.getFilename()));
- return file.exists();
- }
-
- public boolean save(Avatar avatar) {
- File file;
- if (isAvatarCached(avatar)) {
- file = new File(getAvatarPath(avatar.getFilename()));
- } else {
- String filename = getAvatarPath(avatar.getFilename());
- file = new File(filename + ".tmp");
- file.getParentFile().mkdirs();
- OutputStream os = null;
- try {
- file.createNewFile();
- os = new FileOutputStream(file);
- MessageDigest digest = MessageDigest.getInstance("SHA-1");
- digest.reset();
- DigestOutputStream mDigestOutputStream = new DigestOutputStream(os, digest);
- mDigestOutputStream.write(avatar.getImageAsBytes());
- mDigestOutputStream.flush();
- mDigestOutputStream.close();
- String sha1sum = CryptoHelper.bytesToHex(digest.digest());
- if (sha1sum.equals(avatar.sha1sum)) {
- file.renameTo(new File(filename));
- } else {
- Log.d(Config.LOGTAG, "sha1sum mismatch for " + avatar.owner);
- file.delete();
- return false;
- }
- } catch (FileNotFoundException e) {
- return false;
- } catch (IOException e) {
- return false;
- } catch (NoSuchAlgorithmException e) {
- return false;
- } finally {
- close(os);
- }
- }
- avatar.size = file.length();
- return true;
- }
-
- public String getAvatarPath(String avatar) {
- return mXmppConnectionService.getFilesDir().getAbsolutePath()+ "/avatars/" + avatar;
- }
-
- public Uri getAvatarUri(String avatar) {
- return Uri.parse("file:" + getAvatarPath(avatar));
- }
-
- public Bitmap cropCenterSquare(Uri image, int size) {
- if (image == null) {
- return null;
- }
- InputStream is = null;
- try {
- BitmapFactory.Options options = new BitmapFactory.Options();
- options.inSampleSize = calcSampleSize(image, size);
- is = mXmppConnectionService.getContentResolver().openInputStream(image);
- Bitmap input = BitmapFactory.decodeStream(is, null, options);
- if (input == null) {
- return null;
- } else {
- int rotation = getRotation(image);
- if (rotation > 0) {
- input = rotate(input, rotation);
- }
- return cropCenterSquare(input, size);
- }
- } catch (FileNotFoundException e) {
- return null;
- } finally {
- close(is);
- }
- }
-
- public Bitmap cropCenter(Uri image, int newHeight, int newWidth) {
- if (image == null) {
- return null;
- }
- InputStream is = null;
- try {
- BitmapFactory.Options options = new BitmapFactory.Options();
- options.inSampleSize = calcSampleSize(image,Math.max(newHeight, newWidth));
- is = mXmppConnectionService.getContentResolver().openInputStream(image);
- Bitmap source = BitmapFactory.decodeStream(is, null, options);
- if (source == null) {
- return null;
- }
- int sourceWidth = source.getWidth();
- int sourceHeight = source.getHeight();
- float xScale = (float) newWidth / sourceWidth;
- float yScale = (float) newHeight / sourceHeight;
- float scale = Math.max(xScale, yScale);
- float scaledWidth = scale * sourceWidth;
- float scaledHeight = scale * sourceHeight;
- float left = (newWidth - scaledWidth) / 2;
- float top = (newHeight - scaledHeight) / 2;
-
- RectF targetRect = new RectF(left, top, left + scaledWidth, top + scaledHeight);
- Bitmap dest = Bitmap.createBitmap(newWidth, newHeight, Bitmap.Config.ARGB_8888);
- Canvas canvas = new Canvas(dest);
- canvas.drawBitmap(source, null, targetRect, null);
- return dest;
- } catch (FileNotFoundException e) {
- return null;
- } finally {
- close(is);
- }
- }
-
- public Bitmap cropCenterSquare(Bitmap input, int size) {
- int w = input.getWidth();
- int h = input.getHeight();
-
- float scale = Math.max((float) size / h, (float) size / w);
-
- float outWidth = scale * w;
- float outHeight = scale * h;
- float left = (size - outWidth) / 2;
- float top = (size - outHeight) / 2;
- RectF target = new RectF(left, top, left + outWidth, top + outHeight);
-
- Bitmap output = Bitmap.createBitmap(size, size, Bitmap.Config.ARGB_8888);
- Canvas canvas = new Canvas(output);
- canvas.drawBitmap(input, null, target, null);
- return output;
- }
-
- private int calcSampleSize(Uri image, int size) throws FileNotFoundException {
- BitmapFactory.Options options = new BitmapFactory.Options();
- options.inJustDecodeBounds = true;
- BitmapFactory.decodeStream(mXmppConnectionService.getContentResolver().openInputStream(image), null, options);
- return calcSampleSize(options, size);
- }
-
- private int calcSampleSize(File image, int size) {
- BitmapFactory.Options options = new BitmapFactory.Options();
- options.inJustDecodeBounds = true;
- BitmapFactory.decodeFile(image.getAbsolutePath(), options);
- return calcSampleSize(options, size);
- }
-
- private int calcSampleSize(BitmapFactory.Options options, int size) {
- int height = options.outHeight;
- int width = options.outWidth;
- int inSampleSize = 1;
-
- if (height > size || width > size) {
- int halfHeight = height / 2;
- int halfWidth = width / 2;
-
- while ((halfHeight / inSampleSize) > size
- && (halfWidth / inSampleSize) > size) {
- inSampleSize *= 2;
- }
- }
- return inSampleSize;
- }
-
- public Uri getJingleFileUri(Message message) {
+ public static Uri getJingleFileUri(Message message) {
File file = getFile(message);
return Uri.parse("file://" + file.getAbsolutePath());
}
- public void updateFileParams(Message message) {
+ public static void updateFileParams(Message message) {
updateFileParams(message,null);
}
- public void updateFileParams(Message message, URL url) {
+ public static void updateFileParams(Message message, URL url) {
DownloadableFile file = getFile(message);
if (message.getType() == Message.TYPE_IMAGE || file.getMimeType().startsWith("image/")) {
BitmapFactory.Options options = new BitmapFactory.Options();
@@ -526,40 +222,11 @@ public class FileBackend {
}
- public class FileCopyException extends Exception {
- private static final long serialVersionUID = -1010013599132881427L;
- private int resId;
-
- public FileCopyException(int resId) {
- this.resId = resId;
- }
-
- public int getResId() {
- return resId;
- }
- }
-
- public Bitmap getAvatar(String avatar, int size) {
- if (avatar == null) {
- return null;
- }
- Bitmap bm = cropCenter(getAvatarUri(avatar), size, size);
- if (bm == null) {
- return null;
- }
- return bm;
- }
-
- public boolean isFileAvailable(Message message) {
+ public static boolean isFileAvailable(Message message) {
return getFile(message).exists();
}
- public static void close(Closeable stream) {
- if (stream != null) {
- try {
- stream.close();
- } catch (IOException e) {
- }
- }
- }
-}
+ private FileBackend() {
+ // Static helper class
+ }
+} \ No newline at end of file