tech.aroma.service.operations.GetFullMessageOperation Maven / Gradle / Ivy

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/*
 * Copyright 2016 RedRoma.
 *
 * 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 tech.aroma.service.operations;


import javax.inject.Inject;
import org.apache.thrift.TException;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import tech.aroma.data.MessageRepository;
import tech.aroma.thrift.Message;
import tech.aroma.thrift.exceptions.InvalidArgumentException;
import tech.aroma.thrift.service.GetFullMessageRequest;
import tech.aroma.thrift.service.GetFullMessageResponse;
import tech.sirwellington.alchemy.arguments.AlchemyAssertion;
import tech.sirwellington.alchemy.thrift.operations.ThriftOperation;

import static tech.aroma.data.assertions.RequestAssertions.validApplicationId;
import static tech.aroma.data.assertions.RequestAssertions.validMessageId;
import static tech.sirwellington.alchemy.arguments.Arguments.checkThat;
import static tech.sirwellington.alchemy.arguments.assertions.Assertions.notNull;

/**
 *
 * @author SirWellington
 */
final class GetFullMessageOperation implements ThriftOperation
{
    private final static Logger LOG = LoggerFactory.getLogger(GetFullMessageOperation.class);

    private final MessageRepository messageRepo;

    @Inject
    GetFullMessageOperation(MessageRepository messageRepo)
    {
        checkThat(messageRepo).is(notNull());
        
        this.messageRepo = messageRepo;
    }
    
    @Override
    public GetFullMessageResponse process(GetFullMessageRequest request) throws TException
    {
        checkThat(request)
            .throwing(ex -> new InvalidArgumentException(ex.getMessage()))
            .is(good());
        
        String appId = request.applicationId;
        String messageId = request.messageId;
        
        Message message = messageRepo.getMessage(appId, messageId);
        
        return new GetFullMessageResponse(message);
    }

    private AlchemyAssertion good()
    {
        return request ->
        {
            checkThat(request)
                .usingMessage("missing request")
                .is(notNull());
            
            checkThat(request.messageId)
                .is(validMessageId());
            
            checkThat(request.applicationId)
                .is(validApplicationId());
        };
        
    }

}