io.grpc.okhttp.Utils Maven / Gradle / Ivy
/*
* Copyright 2014, Google Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following disclaimer
* in the documentation and/or other materials provided with the
* distribution.
*
* * Neither the name of Google Inc. nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package io.grpc.okhttp;
import com.squareup.okhttp.internal.spdy.Header;
import io.grpc.Metadata;
import io.grpc.internal.TransportFrameUtil;
import java.util.List;
/**
* Common utility methods for OkHttp transport.
*/
class Utils {
static final int DEFAULT_WINDOW_SIZE = 65535;
static final int CONNECTION_STREAM_ID = 0;
public static Metadata convertHeaders(List http2Headers) {
return new Metadata(convertHeadersToArray(http2Headers));
}
public static Metadata convertTrailers(List http2Headers) {
return new Metadata(convertHeadersToArray(http2Headers));
}
private static byte[][] convertHeadersToArray(List http2Headers) {
byte[][] headerValues = new byte[http2Headers.size() * 2][];
int i = 0;
for (Header header : http2Headers) {
headerValues[i++] = header.name.toByteArray();
headerValues[i++] = header.value.toByteArray();
}
return TransportFrameUtil.toRawSerializedHeaders(headerValues);
}
private Utils() {
// Prevents instantiation
}
}