| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You 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.apache.nifi.distributed.cache.client.adapter; |
| |
| import io.netty.buffer.ByteBuf; |
| import io.netty.buffer.Unpooled; |
| |
| import java.io.IOException; |
| |
| /** |
| * Implementation of {@link InboundAdapter} where the service response payload is expected to be a {@link Boolean}. |
| */ |
| public class BooleanInboundAdapter implements InboundAdapter { |
| |
| /** |
| * Container for bytes queued from the service response {@link io.netty.channel.Channel}. |
| */ |
| private final ByteBuf byteBuf; |
| |
| /** |
| * The received service method response value. This is set to a non-null value upon receipt. |
| */ |
| private Boolean result; |
| |
| /** |
| * Constructor. |
| */ |
| public BooleanInboundAdapter() { |
| this.byteBuf = Unpooled.buffer(); |
| this.result = null; |
| } |
| |
| /** |
| * @return the service method response value |
| */ |
| public boolean getResult() { |
| return result; |
| } |
| |
| @Override |
| public boolean isComplete() { |
| return (result != null); |
| } |
| |
| @Override |
| public void queue(final byte[] bytes) { |
| byteBuf.writeBytes(bytes); |
| } |
| |
| @Override |
| public void dequeue() throws IOException { |
| if (byteBuf.readableBytes() >= 1) { |
| final byte b = byteBuf.readByte(); |
| result = (b != 0); |
| } |
| } |
| } |