42.2. Producer インターフェイスの実装

import org.apache.camel.Endpoint;
import org.apache.camel.Exchange;
import org.apache.camel.Producer;
import org.apache.camel.impl.DefaultProducer;

public class CustomProducer extends DefaultProducer { 1

    public CustomProducer(Endpoint endpoint) { 2
        super(endpoint);
        // Perform other initialization tasks...
    }

    public void process(Exchange exchange) throws Exception { 3
        // Process exchange synchronously.
        // ...
    }
}

import org.apache.camel.AsyncCallback;
import org.apache.camel.AsyncProcessor;
import org.apache.camel.Endpoint;
import org.apache.camel.Exchange;
import org.apache.camel.Producer;
import org.apache.camel.impl.DefaultProducer;

public class _CustomProducer_ extends DefaultProducer implements AsyncProcessor { 1

    public _CustomProducer_(Endpoint endpoint) { 2
        super(endpoint);
        // ...
    }

    public void process(Exchange exchange) throws Exception { 3
        // Process exchange synchronously.
        // ...
    }

    public boolean process(Exchange exchange, AsyncCallback callback) { 4
        // Process exchange asynchronously.
        CustomProducerTask task = new CustomProducerTask(exchange, callback);
        // Process 'task' in a separate thread...
        // ...
        return false; 5
    }
}

public class CustomProducerTask implements Runnable { 6
    private Exchange exchange;
    private AsyncCallback callback;

    public CustomProducerTask(Exchange exchange, AsyncCallback callback) {
        this.exchange = exchange;
        this.callback = callback;
    }

    public void run() { 7
        // Process exchange.
        // ...
        callback.done(false);
    }
}