/*
 * Copyright 2004,2005 The Apache Software Foundation.
 *
 * 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 sample.eventing;

import org.apache.axiom.om.OMAbstractFactory;
import org.apache.axiom.om.OMElement;
import org.apache.axiom.om.OMFactory;
import org.apache.axiom.om.OMNamespace;
import org.apache.axis2.AxisFault;
import org.apache.axis2.context.ServiceContext;
import org.apache.savan.publication.client.PublicationClient;
import org.apache.savan.storage.SubscriberStore;
import org.apache.savan.util.CommonUtil;

import java.util.Random;

public class PublisherService {

    ServiceContext serviceContext = null;

    public void init(ServiceContext serviceContext) throws AxisFault {
        System.out.println("Eventing Service INIT called");
        this.serviceContext = serviceContext;

        PublisherThread thread = new PublisherThread();
        thread.start();
    }

    public void dummyMethod(OMElement param) throws Exception {
        System.out.println("Eventing Service dummy method called");
    }

    private class PublisherThread extends Thread {

        String Publication = "Publication";
        String publicationNamespaceValue = "http://tempuri/publication/";
        Random r = new Random();

        public void run() {
            try {
                while (true) {

                    Thread.sleep(5000);

                    //publishing
                    System.out.println("Publishing next publication...");

                    SubscriberStore store =
                            CommonUtil.getSubscriberStore(serviceContext.getAxisService());
                    if (store == null)
                        throw new Exception("Cant find the Savan subscriber store");

                    OMElement data = getNextPublicationData();

                    PublicationClient publicationClient =
                            new PublicationClient(serviceContext.getConfigurationContext());
                    publicationClient.sendPublication(data, serviceContext.getAxisService(), null);
                }
            } catch (Exception e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            }
        }

        public OMElement getNextPublicationData() {
            OMFactory factory = OMAbstractFactory.getOMFactory();
            OMNamespace namespace = factory.createOMNamespace(publicationNamespaceValue, "ns1");
            OMElement publicationElement = factory.createOMElement(Publication, namespace);

            int value = r.nextInt();
            publicationElement.setText(Integer.toString(value));

            OMElement data = factory.createOMElement("publish", namespace);
            data.addChild(publicationElement);


            return data;
        }
    }
}