org.fuwjax.oss.util.io.IoStreams Maven / Gradle / Ivy
/*
* Copyright (C) 2015 fuwjax.org ([email protected])
*
* 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 org.fuwjax.oss.util.io;
import java.io.IOException;
import java.io.InputStream;
import java.nio.ByteBuffer;
import java.util.ArrayList;
import java.util.List;
public class IoStreams {
public static byte[] readAllBytes(final InputStream input) throws IOException {
final List buffers = new ArrayList<>();
int c;
int total = 0;
byte[] bytes = new byte[4096];
while((c = input.read(bytes)) != -1) {
if(c > 0) {
total += c;
buffers.add(ByteBuffer.wrap(bytes, 0, c));
bytes = new byte[4096];
}
}
bytes = new byte[total];
c = 0;
for(final ByteBuffer buffer : buffers) {
c += buffer.remaining();
buffer.get(bytes, c - buffer.remaining(), buffer.remaining());
}
return bytes;
}
}