diff options
Diffstat (limited to 'src/com/android/gallery3d/exif/CountedDataInputStream.java')
-rw-r--r-- | src/com/android/gallery3d/exif/CountedDataInputStream.java | 136 |
1 files changed, 0 insertions, 136 deletions
diff --git a/src/com/android/gallery3d/exif/CountedDataInputStream.java b/src/com/android/gallery3d/exif/CountedDataInputStream.java deleted file mode 100644 index dfd4a1a10..000000000 --- a/src/com/android/gallery3d/exif/CountedDataInputStream.java +++ /dev/null @@ -1,136 +0,0 @@ -/* - * Copyright (C) 2012 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.gallery3d.exif; - -import java.io.EOFException; -import java.io.FilterInputStream; -import java.io.IOException; -import java.io.InputStream; -import java.nio.ByteBuffer; -import java.nio.ByteOrder; -import java.nio.charset.Charset; - -class CountedDataInputStream extends FilterInputStream { - - private int mCount = 0; - - // allocate a byte buffer for a long value; - private final byte mByteArray[] = new byte[8]; - private final ByteBuffer mByteBuffer = ByteBuffer.wrap(mByteArray); - - protected CountedDataInputStream(InputStream in) { - super(in); - } - - public int getReadByteCount() { - return mCount; - } - - @Override - public int read(byte[] b) throws IOException { - int r = in.read(b); - mCount += (r >= 0) ? r : 0; - return r; - } - - @Override - public int read(byte[] b, int off, int len) throws IOException { - int r = in.read(b, off, len); - mCount += (r >= 0) ? r : 0; - return r; - } - - @Override - public int read() throws IOException { - int r = in.read(); - mCount += (r >= 0) ? 1 : 0; - return r; - } - - @Override - public long skip(long length) throws IOException { - long skip = in.skip(length); - mCount += skip; - return skip; - } - - public void skipOrThrow(long length) throws IOException { - if (skip(length) != length) throw new EOFException(); - } - - public void skipTo(long target) throws IOException { - long cur = mCount; - long diff = target - cur; - assert(diff >= 0); - skipOrThrow(diff); - } - - public void readOrThrow(byte[] b, int off, int len) throws IOException { - int r = read(b, off, len); - if (r != len) throw new EOFException(); - } - - public void readOrThrow(byte[] b) throws IOException { - readOrThrow(b, 0, b.length); - } - - public void setByteOrder(ByteOrder order) { - mByteBuffer.order(order); - } - - public ByteOrder getByteOrder() { - return mByteBuffer.order(); - } - - public short readShort() throws IOException { - readOrThrow(mByteArray, 0 ,2); - mByteBuffer.rewind(); - return mByteBuffer.getShort(); - } - - public int readUnsignedShort() throws IOException { - return readShort() & 0xffff; - } - - public int readInt() throws IOException { - readOrThrow(mByteArray, 0 , 4); - mByteBuffer.rewind(); - return mByteBuffer.getInt(); - } - - public long readUnsignedInt() throws IOException { - return readInt() & 0xffffffffL; - } - - public long readLong() throws IOException { - readOrThrow(mByteArray, 0 , 8); - mByteBuffer.rewind(); - return mByteBuffer.getLong(); - } - - public String readString(int n) throws IOException { - byte buf[] = new byte[n]; - readOrThrow(buf); - return new String(buf, "UTF8"); - } - - public String readString(int n, Charset charset) throws IOException { - byte buf[] = new byte[n]; - readOrThrow(buf); - return new String(buf, charset); - } -}
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