/*
* 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.giraph.utils;
import io.netty.buffer.ByteBuf;
import io.netty.buffer.ByteBufInputStream;
import org.apache.giraph.comm.requests.WritableRequest;
import java.io.IOException;
import org.apache.log4j.Logger;
/**
* RequestUtils utility class
*/
public class RequestUtils {
/** Logger */
public static final Logger LOG = Logger.getLogger(RequestUtils.class);
/**
* Private Constructor
*/
private RequestUtils() {
}
/**
* decodeWritableRequest based on predicate
*
* @param buf ByteBuf
* @param request writableRequest
* @return properly initialized writableRequest
* @throws IOException
*/
public static WritableRequest decodeWritableRequest(ByteBuf buf,
WritableRequest request) throws IOException {
ByteBufInputStream input = new ByteBufInputStream(buf);
request.readFields(input);
return request;
}
}