jlibs.core.nio.InputStreamChannel Maven / Gradle / Ivy
/**
* Copyright 2015 Santhosh Kumar Tekuri
*
* The JLibs authors license this file to you 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 jlibs.core.nio;
import java.io.IOException;
import java.io.InputStream;
import java.nio.ByteBuffer;
import java.nio.channels.ReadableByteChannel;
/**
* @author Santhosh Kumar T
*/
public final class InputStreamChannel implements ReadableByteChannel{
private InputStream is;
public InputStreamChannel(InputStream is){
this.is = is;
}
private boolean eof;
public boolean isEOF(){
return eof;
}
@Override
public int read(ByteBuffer buffer) throws IOException{
int pos = buffer.position();
int read = is.read(buffer.array(), buffer.arrayOffset()+pos, buffer.remaining());
if(read>0)
buffer.position(pos+read);
else if(read==-1)
eof = true;
return read;
}
@Override
public boolean isOpen(){
return is!=null;
}
@Override
public void close() throws IOException{
is.close();
is = null;
}
}