com.epam.deltix.util.io.InputStreamSink Maven / Gradle / Ivy
/*
* Copyright 2021 EPAM Systems, Inc
*
* See the NOTICE file distributed with this work for additional information
* regarding copyright ownership. 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.epam.deltix.util.io;
import java.io.InputStream;
/**
* Caps an InputStream. This kind of Thread reads the
* specified InputStream until it hits the EOF, completely
* discarding the contents. Useful to attach this to the
* InputStreams of a Process, so the process does not block
* forever when it fills the buffers.
*/
public class InputStreamSink extends Thread {
private InputStream mInputStream;
private boolean mClose;
/**
* Constructs an InputStreamSink.
*
* @param is The input stream to empty.
* @param close Whether to close the stream when it ends.
*/
public InputStreamSink (InputStream is, boolean close) {
mInputStream = is;
mClose = close;
}
/**
* Constructs an InputStreamSink which will close the stream at EOF.
*
* @param is The input stream to empty.
*/
public InputStreamSink (InputStream is) {
this (is, true);
}
public void run () {
try {
byte [] buf = new byte [512];
while (mInputStream.read (buf) >= 0);
if (mClose)
mInputStream.close ();
} catch (Exception x) {
x.printStackTrace ();
}
}
}