Current File : //home/waritko/yacy/source/net/yacy/cora/util/HTTPInputStream.java
/**
* HTTPInputStream
* Copyright 2014 by Michael Peter Christen; mc@yacy.net, Frankfurt a. M., Germany
* First published 26.11.2014 on http://yacy.net
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program in the file lgpl21.txt
* If not, see <http://www.gnu.org/licenses/>.
*/
package net.yacy.cora.util;
import java.io.IOException;
import java.io.InputStream;
import net.yacy.cora.protocol.http.HTTPClient;
/**
* A HTTP InputStream delegating to HTTPClient. Use it when streaming HTTP content to easily finish HTTP client when closing stream.
* @author luc
*
*/
public class HTTPInputStream extends InputStream {
/** HTTP client */
private HTTPClient httpClient;
/** Encapsulated HTTP content stream */
private InputStream contentStream;
/**
* Constructs from a httpClient.
* @param httpClient a httpClient with accessible stream content.
* @throws IOException when content stream can not be open on httpClient
*/
public HTTPInputStream(HTTPClient httpClient) throws IOException {
if(httpClient == null) {
throw new IllegalArgumentException("httpClient is null");
}
this.httpClient = httpClient;
this.contentStream = httpClient.getContentstream();
if(this.contentStream == null) {
throw new IOException("content stream is null");
}
}
/**
* Close properly HTTP connection with httpClient
*/
@Override
public void close() throws IOException {
httpClient.finish();
}
@Override
public int read() throws IOException {
return contentStream.read();
}
@Override
public int hashCode() {
return contentStream.hashCode();
}
@Override
public int read(byte[] b) throws IOException {
return contentStream.read(b);
}
@Override
public boolean equals(Object obj) {
return contentStream.equals(obj);
}
@Override
public int read(byte[] b, int off, int len) throws IOException {
return contentStream.read(b, off, len);
}
@Override
public long skip(long n) throws IOException {
return contentStream.skip(n);
}
@Override
public String toString() {
return contentStream.toString();
}
@Override
public int available() throws IOException {
return contentStream.available();
}
@Override
public synchronized void mark(int readlimit) {
contentStream.mark(readlimit);
}
@Override
public synchronized void reset() throws IOException {
contentStream.reset();
}
@Override
public boolean markSupported() {
return contentStream.markSupported();
}
}
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