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Gluon - Core micro services implementation.

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/**
 * Copyright 2017 Zaradai
 * 
 * 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 com.zaradai.gluon.model;

import com.google.common.base.MoreObjects;
import com.zaradai.gluon.MicroService;

import java.io.Serializable;
import java.util.UUID;

import static com.zaradai.gluon.util.Validations.checkString;

public class ServiceRequest implements Serializable {
    private static final long serialVersionUID = 8280531732942438403L;

    public static ServiceRequest create(String serviceName, Object arg) {
        return new ServiceRequest(checkString(serviceName, MicroService.INVALID_SERVICE_NAME), arg);
    }

    private String serviceName;
    private Object arg;
    private String requestId;

    private ServiceRequest(String serviceName, Object arg) {
        this.serviceName = serviceName;
        this.arg = arg;
        this.requestId = UUID.randomUUID().toString();
    }

    public String getServiceName() {
        return serviceName;
    }

    public Object getArg() {
        return arg;
    }

    public String getRequestId() {
        return requestId;
    }

    @Override
    public String toString() {
        return MoreObjects.toStringHelper(this)
                .add("serviceName", serviceName)
                .add("arg", arg)
                .add("requestId", requestId)
                .toString();
    }
}