| /* |
| * Copyright 2014 The gRPC Authors |
| * |
| * 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.grpc.netty; |
| |
| import static io.netty.util.CharsetUtil.UTF_8; |
| |
| import com.google.common.io.ByteStreams; |
| import io.netty.buffer.ByteBuf; |
| import io.netty.buffer.Unpooled; |
| import java.io.ByteArrayOutputStream; |
| import java.io.DataOutputStream; |
| import java.io.InputStream; |
| |
| /** |
| * Utility methods for supporting Netty tests. |
| */ |
| public class NettyTestUtil { |
| |
| static String toString(InputStream in) throws Exception { |
| byte[] bytes = new byte[in.available()]; |
| ByteStreams.readFully(in, bytes); |
| return new String(bytes, UTF_8); |
| } |
| |
| static ByteBuf messageFrame(String message) throws Exception { |
| ByteArrayOutputStream os = new ByteArrayOutputStream(); |
| DataOutputStream dos = new DataOutputStream(os); |
| dos.write(message.getBytes(UTF_8)); |
| dos.close(); |
| |
| // Write the compression header followed by the context frame. |
| return compressionFrame(os.toByteArray()); |
| } |
| |
| static ByteBuf compressionFrame(byte[] data) { |
| ByteBuf buf = Unpooled.buffer(); |
| buf.writeByte(0); |
| buf.writeInt(data.length); |
| buf.writeBytes(data); |
| return buf; |
| } |
| } |