72 lines
2.8 KiB
Java
72 lines
2.8 KiB
Java
package org.gcube.vremanagement.vremodeler.consumers;
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import java.io.StringReader;
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import java.sql.ResultSet;
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import javax.xml.namespace.QName;
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import org.gcube.common.core.contexts.GHNContext;
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import org.gcube.common.core.contexts.GHNContext.Status;
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import org.gcube.common.core.informationsystem.notifier.ISNotifier.BaseNotificationConsumer;
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import org.gcube.common.core.informationsystem.notifier.ISNotifier.GCUBENotificationTopic;
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import org.gcube.common.core.informationsystem.notifier.ISNotifier.NotificationEvent;
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import org.gcube.common.core.resources.GCUBEHostingNode;
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import org.gcube.common.core.scope.GCUBEScope;
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import org.gcube.common.core.utils.logging.GCUBELog;
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import org.gcube.vremanagement.vremodeler.db.DBInterface;
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import org.gcube.vremanagement.vremodeler.impl.ServiceContext;
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import org.gcube.vremanagement.vremodeler.resources.handlers.GHNHandler;
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public class GHNConsumer extends BaseNotificationConsumer{
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public static GCUBENotificationTopic ghnTopic;
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static{
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ghnTopic= new GCUBENotificationTopic(new QName("http://gcube-system.org/namespaces/informationsystem/registry","GHN"));
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ghnTopic.setPrecondition("(//operationType[text()='destroy']) or (//operationType[text()='update'])");
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ghnTopic.setUseRenotifier(false);
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}
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private GCUBELog logger= new GCUBELog(GHNConsumer.class);
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private GCUBEScope scope;
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public GHNConsumer(GCUBEScope scope){
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super();
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this.scope=scope;
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}
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public void onNotificationReceived(NotificationEvent event){
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try{
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//logger.trace("notification received");
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ServiceContext.getContext().setScope(this.scope);
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String id= event.getPayload().getMessage()[0].getChildNodes().item(0).getChildNodes().item(0).getNodeValue();
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String operation=event.getPayload().getMessage()[0].getChildNodes().item(2).getChildNodes().item(0).getNodeValue();
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//logger.trace("received id: "+id+" op: "+operation+" profile: "+profile);
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if (operation.compareTo("update")==0){
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//logger.trace("adding a new GHN in DB");
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GCUBEHostingNode ghn= GHNContext.getImplementation(GCUBEHostingNode.class);
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String profile=event.getPayload().getMessage()[0].getChildNodes().item(1).getChildNodes().item(0).getNodeValue();
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ghn.load(new StringReader(profile));
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//if (ghn.getNodeDescription().getStatus()!=Status.CERTIFIED) return;
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ResultSet queryRes= DBInterface.queryDB("select host from ghn where id='"+ghn.getID()+"'");
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if (queryRes.next()){
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if (ghn.getNodeDescription().getStatus()!=Status.CERTIFIED)
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new GHNHandler().drop(ghn.getID());
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} else {
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if (ghn.getNodeDescription().getStatus()==Status.CERTIFIED)
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new GHNHandler().add(ghn);
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}
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} else if (operation.compareTo("destroy")==0){
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logger.trace("removing a GHN from DB");
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new GHNHandler().drop(id);
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}
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}catch(Exception e){logger.error("error in notification received",e);}
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}
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}
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