/*******************************************************************************
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* Copyright 2013-2014 Sergey Tarasevich
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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.nostra13.universalimageloader.core.assist;
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import java.io.IOException;
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import java.io.InputStream;
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/**
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* Decorator for {@link java.io.InputStream InputStream}. Provides possibility to return defined stream length by
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* {@link #available()} method.
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*
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* @author Sergey Tarasevich (nostra13[at]gmail[dot]com), Mariotaku
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* @since 1.9.1
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*/
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public class ContentLengthInputStream extends InputStream {
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private final InputStream stream;
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private final int length;
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public ContentLengthInputStream(InputStream stream, int length) {
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this.stream = stream;
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this.length = length;
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}
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@Override
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public int available() {
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return length;
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}
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@Override
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public void close() throws IOException {
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stream.close();
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}
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@Override
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public void mark(int readLimit) {
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stream.mark(readLimit);
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}
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@Override
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public int read() throws IOException {
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return stream.read();
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}
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@Override
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public int read(byte[] buffer) throws IOException {
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return stream.read(buffer);
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}
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@Override
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public int read(byte[] buffer, int byteOffset, int byteCount) throws IOException {
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return stream.read(buffer, byteOffset, byteCount);
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}
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@Override
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public void reset() throws IOException {
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stream.reset();
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}
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@Override
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public long skip(long byteCount) throws IOException {
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return stream.skip(byteCount);
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}
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@Override
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public boolean markSupported() {
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return stream.markSupported();
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}
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}
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