org.apache.camel.component.jt400.Jt400DataQueueProducer Maven / Gradle / Ivy

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/*
 * 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.camel.component.jt400;

import com.ibm.as400.access.BaseDataQueue;
import com.ibm.as400.access.DataQueue;
import com.ibm.as400.access.KeyedDataQueue;
import org.apache.camel.Exchange;
import org.apache.camel.Producer;
import org.apache.camel.support.DefaultProducer;

/**
 * {@link Producer} to send data to an IBM i data queue.
 */
public class Jt400DataQueueProducer extends DefaultProducer {

    private final Jt400Endpoint endpoint;

    /**
     * Performs the lifecycle logic of this producer.
     */
    protected Jt400DataQueueProducer(Jt400Endpoint endpoint) {
        super(endpoint);
        this.endpoint = endpoint;
    }

    /**
     * Sends the {@link Exchange}'s in body to the IBM i data queue. If the endpoint's format is set to
     * {@link org.apache.camel.component.jt400.Jt400Configuration.Format#binary}, the data queue entry's data will be
     * sent as a byte[]. If the endpoint's format is set to
     * {@link org.apache.camel.component.jt400.Jt400Configuration.Format#text}, the data queue entry's data will be sent
     * as a String.
     * 
     * If the endpoint is configured to publish to a {@link KeyedDataQueue}, then the {@link org.apache.camel.Message}
     * header KEY must be set.
     */
    @Override
    public void process(Exchange exchange) throws Exception {
        try (Jt400DataQueueService queueService = new Jt400DataQueueService(endpoint)) {
            queueService.start();
            BaseDataQueue queue = queueService.getDataQueue();
            if (endpoint.isKeyed()) {
                process((KeyedDataQueue) queue, exchange);
            } else {
                process((DataQueue) queue, exchange);
            }
        }
    }

    private void process(DataQueue queue, Exchange exchange) throws Exception {
        if (endpoint.getFormat() == Jt400Configuration.Format.binary) {
            queue.write(exchange.getIn().getBody(byte[].class));
        } else {
            queue.write(exchange.getIn().getBody(String.class));
        }
    }

    private void process(KeyedDataQueue queue, Exchange exchange) throws Exception {
        if (endpoint.getFormat() == Jt400Configuration.Format.binary) {
            queue.write(exchange.getIn().getHeader(Jt400Endpoint.KEY, byte[].class), exchange.getIn().getBody(byte[].class));
        } else {
            queue.write(exchange.getIn().getHeader(Jt400Endpoint.KEY, String.class), exchange.getIn().getBody(String.class));
        }
    }

}