com.facebook.presto.jdbc.internal.airlift.slice.SliceStreamUtils Maven / Gradle / Ivy
/*
* 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.facebook.presto.jdbc.internal.airlift.slice;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
final class SliceStreamUtils
{
private SliceStreamUtils()
{
}
public static int copyStream(InputStream in, OutputStream out, int length)
throws IOException
{
int bytesRead = 0;
byte[] bytes = new byte[4096];
while (bytesRead < length) {
int newBytes = in.read(bytes, 0, Math.min(bytes.length, length - bytesRead));
if (newBytes < 0) {
break;
}
out.write(bytes, 0, newBytes);
bytesRead += newBytes;
}
return bytesRead;
}
}