From fd681e2c6663652be02a31f7b40da4cd283ab37e Mon Sep 17 00:00:00 2001
From: Trygve Laugstøl <trygvis@inamo.no>
Date: Mon, 21 Apr 2014 09:01:00 +0200
Subject: wip

---
 .../engine/NexusNewArtifactMessageListener.java    | 111 +++++++++++++++++++++
 1 file changed, 111 insertions(+)
 create mode 100644 calamus-engine/src/main/java/io/trygvis/calamus/engine/NexusNewArtifactMessageListener.java

(limited to 'calamus-engine/src/main/java/io/trygvis/calamus/engine/NexusNewArtifactMessageListener.java')

diff --git a/calamus-engine/src/main/java/io/trygvis/calamus/engine/NexusNewArtifactMessageListener.java b/calamus-engine/src/main/java/io/trygvis/calamus/engine/NexusNewArtifactMessageListener.java
new file mode 100644
index 0000000..ab111d7
--- /dev/null
+++ b/calamus-engine/src/main/java/io/trygvis/calamus/engine/NexusNewArtifactMessageListener.java
@@ -0,0 +1,111 @@
+package io.trygvis.calamus.engine;
+
+import io.trygvis.calamus.engine.domain.Artifact;
+import io.trygvis.calamus.engine.domain.Process;
+import io.trygvis.calamus.engine.domain.ProcessTrigger;
+import org.kie.api.runtime.KieSession;
+import org.slf4j.Logger;
+import org.springframework.transaction.TransactionStatus;
+import org.springframework.transaction.support.TransactionCallbackWithoutResult;
+import org.springframework.transaction.support.TransactionTemplate;
+
+import javax.jms.JMSException;
+import javax.jms.Message;
+import javax.jms.MessageListener;
+import javax.jms.TextMessage;
+import javax.persistence.EntityManager;
+import javax.persistence.EntityManagerFactory;
+import javax.persistence.NoResultException;
+import javax.persistence.TypedQuery;
+import java.io.IOException;
+import java.io.StringReader;
+import java.util.Map;
+import java.util.Properties;
+
+import static java.util.Collections.singletonMap;
+import static org.slf4j.LoggerFactory.getLogger;
+
+public class NexusNewArtifactMessageListener implements MessageListener {
+    private final Logger log = getLogger(getClass());
+
+    private final TransactionTemplate transactionTemplate;
+    private final EntityManagerFactory entityManagerFactory;
+    private final KieSession session;
+
+    public NexusNewArtifactMessageListener(TransactionTemplate transactionTemplate, EntityManagerFactory entityManagerFactory, KieSession session) {
+        this.transactionTemplate = transactionTemplate;
+        this.entityManagerFactory = entityManagerFactory;
+        this.session = session;
+    }
+
+    @Override
+    public void onMessage(Message message) {
+        if (!(message instanceof TextMessage)) {
+            return;
+        }
+
+        try {
+            TextMessage m = (TextMessage) message;
+            Properties p = new Properties();
+            p.load(new StringReader(m.getText()));
+
+            String repository = p.getProperty("repository");
+            String groupId = p.getProperty("groupId");
+            String artifactId = p.getProperty("artifactId");
+            String version = p.getProperty("version");
+            String classifier = p.getProperty("classifier");
+            String extension = p.getProperty("extension");
+
+            log.info("Artifact event: groupId={}, artifactId={}, version={}, classifier={}, extension={}", groupId, artifactId, version, classifier, extension);
+
+            transactionTemplate.execute(new TransactionCallbackWithoutResult() {
+                @Override
+                protected void doInTransactionWithoutResult(TransactionStatus status) {
+                    processMessage(groupId, artifactId, version, classifier, extension);
+                }
+            });
+        } catch (JMSException | IOException e) {
+            e.printStackTrace();
+        }
+    }
+
+    private void processMessage(String groupId, String artifactId, String version, String classifier, String extension) {
+        // Check for any processes that will be started because of this
+        EntityManager entityManager = entityManagerFactory.createEntityManager();
+
+        TypedQuery<Artifact> query = entityManager.createQuery("FROM Artifact WHERE groupId=:groupId AND artifactId=:artifactId AND version=:version AND extension=:extension", Artifact.class);
+        query.setParameter("groupId", groupId);
+        query.setParameter("artifactId", artifactId);
+        query.setParameter("version", version);
+        query.setParameter("extension", extension);
+        Artifact artifact;
+        try {
+            artifact = query.getSingleResult();
+            log.info("Existing artifact: {}", artifact);
+        } catch (NoResultException e) {
+            artifact = new Artifact(groupId, artifactId, version, classifier, extension);
+            log.info("New artifact: {}", artifact);
+            entityManager.persist(artifact);
+        }
+
+        for (Process process : entityManager.createQuery("FROM Process", Process.class).getResultList()) {
+            System.out.println("process.name = " + process.getName());
+
+            for (ProcessTrigger trigger : process.getProcessTriggers()) {
+                System.out.println("trigger.getMvel() = " + trigger.getMvel());
+                boolean match = trigger.matches(artifact);
+                System.out.println("match = " + match);
+
+                Map<String, Object> parameters = singletonMap("artifact", artifact);
+                session.startProcess(process.getJbpmProcessId(), parameters);
+            }
+        }
+
+        /*
+        String type;
+        Object event;
+        long processInstanceId;
+        jbpm.signalEvent(type, event, processInstanceId);
+        */
+    }
+}
-- 
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