bb68c13afa
This reduces the tombstone down by 100K A follow-on cl will remove the unused resources from the tombstone build Bug: 17414014 Change-Id: I5d38811b17a5273ec726e750ab123e10e36cee04
81 lines
2.2 KiB
Java
81 lines
2.2 KiB
Java
/*
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* Copyright (C) 2008 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.android.email;
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import java.io.IOException;
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import java.io.InputStream;
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/**
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* A filtering InputStream that allows single byte "peeks" without consuming the byte. The
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* client of this stream can call peek() to see the next available byte in the stream
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* and a subsequent read will still return the peeked byte.
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*/
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public class PeekableInputStream extends InputStream {
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private final InputStream mIn;
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private boolean mPeeked;
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private int mPeekedByte;
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public PeekableInputStream(InputStream in) {
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this.mIn = in;
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}
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@Override
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public int read() throws IOException {
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if (!mPeeked) {
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return mIn.read();
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} else {
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mPeeked = false;
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return mPeekedByte;
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}
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}
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public int peek() throws IOException {
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if (!mPeeked) {
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mPeekedByte = read();
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mPeeked = true;
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}
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return mPeekedByte;
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}
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@Override
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public int read(byte[] b, int offset, int length) throws IOException {
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if (!mPeeked) {
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return mIn.read(b, offset, length);
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} else {
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b[0] = (byte)mPeekedByte;
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mPeeked = false;
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int r = mIn.read(b, offset + 1, length - 1);
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if (r == -1) {
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return 1;
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} else {
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return r + 1;
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}
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}
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}
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@Override
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public int read(byte[] b) throws IOException {
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return read(b, 0, b.length);
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}
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@Override
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public String toString() {
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return String.format("PeekableInputStream(in=%s, peeked=%b, peekedByte=%d)",
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mIn.toString(), mPeeked, mPeekedByte);
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}
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}
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