io.prestosql.jdbc.$internal.okhttp3.internal.huc.StreamedRequestBody Maven / Gradle / Ivy
/*
* Copyright (C) 2016 Square, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package io.prestosql.jdbc.$internal.okhttp3.internal.huc;
import java.io.IOException;
import io.prestosql.jdbc.$internal.okhttp3.internal.http.UnrepeatableRequestBody;
import io.prestosql.jdbc.$internal.okio.Buffer;
import io.prestosql.jdbc.$internal.okio.BufferedSink;
import io.prestosql.jdbc.$internal.okio.Okio;
import io.prestosql.jdbc.$internal.okio.Pipe;
/**
* This request body streams bytes from an application thread to an OkHttp dispatcher thread via a
* pipe. Because the data is not buffered it can only be transmitted once.
*/
final class StreamedRequestBody extends OutputStreamRequestBody implements UnrepeatableRequestBody {
private final Pipe pipe = new Pipe(8192);
StreamedRequestBody(long expectedContentLength) {
initOutputStream(Okio.buffer(pipe.sink()), expectedContentLength);
}
@Override public void writeTo(BufferedSink sink) throws IOException {
Buffer buffer = new Buffer();
while (pipe.source().read(buffer, 8192) != -1L) {
sink.write(buffer, buffer.size());
}
}
}