o Adding BoneCP init to Config.

o Starting on an actor-like structure for the running jobs.
o Loading Nexus servers and group ids to look for from the database.

17 files changed, 323 insertions, 81 deletions

diff --git a/config.properties.template b/config.properties.template
index 3f3a0f1..90869ce 100755
--- a/config.properties.template
+++ b/config.properties.template
@@ -1,7 +1,7 @@
 gitorious.url=
 gitorious.sessionValue=
 
-nexus.url=
+nexus.updateInterval=3600
 
 database.driver=
 database.url=jdbc:h2:tcp://127.0.0.1/esper;DB_CLOSE_DELAY=-1
diff --git a/pom.xml b/pom.xml
index ad8e50f..f1cd31b 100755
--- a/pom.xml
+++ b/pom.xml
@@ -17,12 +17,12 @@
     <dependency>
       <groupId>org.codehaus.httpcache4j</groupId>
       <artifactId>httpcache4j-core</artifactId>
-      <version>3.4</version>
+      <version>${version.httpcache4}</version>
     </dependency>
     <dependency>
       <groupId>org.codehaus.httpcache4j.resolvers</groupId>
       <artifactId>resolvers-httpcomponents-httpclient</artifactId>
-      <version>3.4</version>
+      <version>${version.httpcache4}</version>
     </dependency>
     <dependency>
       <groupId>dom4j</groupId>
@@ -84,5 +84,6 @@
   <properties>
     <maven.compiler.source>1.7</maven.compiler.source>
     <maven.compiler.target>1.7</maven.compiler.target>
+    <version.httpcache4>3.4</version.httpcache4>
   </properties>
 </project>
diff --git a/src/main/java/io/trygvis/esper/testing/Config.java b/src/main/java/io/trygvis/esper/testing/Config.java
index d99a18a..ca0e6ff 100755
--- a/src/main/java/io/trygvis/esper/testing/Config.java
+++ b/src/main/java/io/trygvis/esper/testing/Config.java
@@ -2,29 +2,31 @@ package io.trygvis.esper.testing;
 
 import ch.qos.logback.classic.*;
 import ch.qos.logback.core.util.*;
+import com.jolbox.bonecp.*;
 import fj.data.*;
-import java.io.*;
-import java.util.*;
-import org.apache.commons.httpclient.protocol.*;
+import static fj.data.Option.*;
+import static org.apache.commons.lang.StringUtils.*;
 import org.slf4j.*;
 
-import static org.apache.commons.lang.StringUtils.*;
+import java.io.*;
+import java.sql.*;
+import java.util.*;
+import java.util.concurrent.atomic.*;
 
 public class Config {
     public final String gitoriousUrl;
     public final Option<String> gitoriousSessionValue;
-    public final String nexusUrl;
 
-    public final String databaseDriver;
+    public final long nexusUpdateInterval;
+
     public final String databaseUrl;
     public final String databaseUsername;
     public final String databasePassword;
 
-    public Config(String gitoriousUrl, Option<String> gitoriousSessionValue, String nexusUrl, String databaseDriver, String databaseUrl, String databaseUsername, String databasePassword) {
+    public Config(String gitoriousUrl, Option<String> gitoriousSessionValue, long nexusUpdateInterval, String databaseUrl, String databaseUsername, String databasePassword) {
         this.gitoriousUrl = gitoriousUrl;
         this.gitoriousSessionValue = gitoriousSessionValue;
-        this.nexusUrl = nexusUrl;
-        this.databaseDriver = databaseDriver;
+        this.nexusUpdateInterval = nexusUpdateInterval;
         this.databaseUrl = databaseUrl;
         this.databaseUsername = databaseUsername;
         this.databasePassword = databasePassword;
@@ -38,14 +40,9 @@ public class Config {
             properties.load(inputStream);
         }
 
-        String driver = trimToNull(properties.getProperty("database.driver"));
-
-//        Class.forName(driver);
-
         return new Config(trimToNull(properties.getProperty("gitorious.url")),
-                Option.fromNull(trimToNull(properties.getProperty("gitorious.sessionValue"))),
-                trimToNull(properties.getProperty("nexus.url")),
-                driver,
+                fromNull(trimToNull(properties.getProperty("gitorious.sessionValue"))),
+                fromNull(trimToNull(properties.getProperty("nexus.updateInterval"))).bind(parseInt).some() * 1000,
                 trimToNull(properties.getProperty("database.url")),
                 trimToNull(properties.getProperty("database.username")),
                 trimToNull(properties.getProperty("database.password")));
@@ -55,4 +52,30 @@ public class Config {
         LoggerContext lc = (LoggerContext) LoggerFactory.getILoggerFactory();
         StatusPrinter.print(lc);
     }
+
+    public BoneCPDataSource createBoneCp() throws SQLException {
+        return new BoneCPDataSource(new BoneCPConfig(){{
+            setJdbcUrl(databaseUrl);
+            setUsername(databaseUsername);
+            setPassword(databasePassword);
+            setDefaultAutoCommit(false);
+            setMaxConnectionsPerPartition(10);
+        }});
+    }
+
+    public void addShutdownHook(final Thread t, final AtomicBoolean shouldRun) {
+        Runtime.getRuntime().addShutdownHook(new Thread() {
+            {
+                setName("Shutdown hook");
+            }
+
+            public void run() {
+                synchronized (shouldRun) {
+                    shouldRun.set(false);
+                    shouldRun.notifyAll();
+                    t.interrupt();
+                }
+            }
+        });
+    }
 }
diff --git a/src/main/java/io/trygvis/esper/testing/Dao.java b/src/main/java/io/trygvis/esper/testing/Dao.java
index 6c36264..e1a65fe 100755
--- a/src/main/java/io/trygvis/esper/testing/Dao.java
+++ b/src/main/java/io/trygvis/esper/testing/Dao.java
@@ -7,7 +7,7 @@ import java.sql.*;
 import java.util.*;
 
 public class Dao {
-    private final Connection c;
+    protected final Connection c;
     private final Map<String, PreparedStatement> statements = new HashMap<>();
 
     protected Dao(Connection c) {
diff --git a/src/main/java/io/trygvis/esper/testing/Daos.java b/src/main/java/io/trygvis/esper/testing/Daos.java
index 27f9df8..1d5322f 100644
--- a/src/main/java/io/trygvis/esper/testing/Daos.java
+++ b/src/main/java/io/trygvis/esper/testing/Daos.java
@@ -1,8 +1,8 @@
 package io.trygvis.esper.testing;
 
-import com.jolbox.bonecp.*;
 import io.trygvis.esper.testing.gitorious.*;
 
+import javax.sql.*;
 import java.io.*;
 import java.sql.*;
 
@@ -38,7 +38,7 @@ public class Daos implements Closeable {
         connection.commit();
     }
 
-    public static Daos lookup(BoneCP boneCp) throws SQLException {
-        return new Daos(boneCp.getConnection());
+    public static Daos lookup(DataSource dataSource) throws SQLException {
+        return new Daos(dataSource.getConnection());
     }
 }
diff --git a/src/main/java/io/trygvis/esper/testing/XmlUtil.java b/src/main/java/io/trygvis/esper/testing/Util.java
index c2c571c..49d6a37 100644
--- a/src/main/java/io/trygvis/esper/testing/XmlUtil.java
+++ b/src/main/java/io/trygvis/esper/testing/Util.java
@@ -7,7 +7,7 @@ import org.jdom2.*;
 
 import java.net.*;
 
-public class XmlUtil {
+public class Util {
     public static F<String, Option<Integer>> parseInt = new F<String, Option<Integer>>() {
         public Option<Integer> f(String s) {
             try {
diff --git a/src/main/java/io/trygvis/esper/testing/gitorious/GitoriousImporter.java b/src/main/java/io/trygvis/esper/testing/gitorious/GitoriousImporter.java
index 74e39ea..a0efda5 100755
--- a/src/main/java/io/trygvis/esper/testing/gitorious/GitoriousImporter.java
+++ b/src/main/java/io/trygvis/esper/testing/gitorious/GitoriousImporter.java
@@ -16,7 +16,7 @@ import java.util.Set;
 import java.util.concurrent.*;
 
 public class GitoriousImporter {
-    private final BoneCP boneCp;
+    private final BoneCPDataSource boneCp;
     private final GitoriousClient gitoriousClient;
 
     public static void main(String[] args) throws Exception {
@@ -25,15 +25,7 @@ public class GitoriousImporter {
     }
 
     public GitoriousImporter(final Config config) throws Exception {
-        BoneCPConfig boneCPConfig = new BoneCPConfig(){{
-            setJdbcUrl(config.databaseUrl);
-            setUsername(config.databaseUsername);
-            setPassword(config.databasePassword);
-            setDefaultAutoCommit(false);
-            setMaxConnectionsPerPartition(10);
-        }};
-
-        boneCp = new BoneCP(boneCPConfig);
+        boneCp = config.createBoneCp();
 
         gitoriousClient = new GitoriousClient(HttpClient.createHttpClient(config), config.gitoriousUrl);
 
diff --git a/src/main/java/io/trygvis/esper/testing/jenkins/JenkinsClient.java b/src/main/java/io/trygvis/esper/testing/jenkins/JenkinsClient.java
index dac79d9..ed4cb59 100644
--- a/src/main/java/io/trygvis/esper/testing/jenkins/JenkinsClient.java
+++ b/src/main/java/io/trygvis/esper/testing/jenkins/JenkinsClient.java
@@ -3,9 +3,9 @@ package io.trygvis.esper.testing.jenkins;
 import fj.*;
 import fj.data.*;
 import io.trygvis.esper.testing.*;
-import static io.trygvis.esper.testing.XmlUtil.*;
+import static io.trygvis.esper.testing.Util.*;
 import io.trygvis.esper.testing.jenkins.JenkinsJobXml.*;
-import static java.lang.Integer.*;
+import static java.lang.Integer.parseInt;
 import static org.apache.commons.lang.StringUtils.*;
 import org.codehaus.httpcache4j.*;
 import org.codehaus.httpcache4j.cache.*;
@@ -183,8 +183,8 @@ class JenkinsJobXml {
         public final URI url;
         public static F<Element, Option<BuildXml>> buildXml = new F<Element, Option<BuildXml>>() {
             public Option<BuildXml> f(Element element) {
-                Option<Integer> number = childText(element, "number").bind(XmlUtil.parseInt);
-                Option<URI> url = childText(element, "url").bind(parseUri);
+                Option<Integer> number = childText(element, "number").bind(Util.parseInt);
+                Option<URI> url = childText(element, "url").bind(Util.parseUri);
 
                 if(number.isNone() || url.isNone()) {
                     return Option.none();
@@ -205,9 +205,9 @@ class JenkinsJobXml {
             childText(root, "description"),
             childText(root, "displayName"),
             childText(root, "name"),
-            childText(root, "url").bind(parseUri).orSome(uri),
+            childText(root, "url").bind(Util.parseUri).orSome(uri),
             childText(root, "color"),
-            childText(root, "buildable").bind(parseBoolean).orSome(false),
+            childText(root, "buildable").bind(Util.parseBoolean).orSome(false),
             child(root, "lastBuild").bind(BuildXml.buildXml),
             child(root, "lastCompletedBuild").bind(BuildXml.buildXml),
             child(root, "lastFailedBuild").bind(BuildXml.buildXml),
diff --git a/src/main/java/io/trygvis/esper/testing/jenkins/JenkinsImporter.java b/src/main/java/io/trygvis/esper/testing/jenkins/JenkinsImporter.java
index 6a132d8..b929576 100755
--- a/src/main/java/io/trygvis/esper/testing/jenkins/JenkinsImporter.java
+++ b/src/main/java/io/trygvis/esper/testing/jenkins/JenkinsImporter.java
@@ -4,11 +4,13 @@ import fj.*;
 import fj.data.*;
 import io.trygvis.esper.testing.*;
 import io.trygvis.esper.testing.object.*;
+import static java.lang.Thread.currentThread;
 import org.joda.time.*;
 
 import java.net.URI;
 import java.util.HashSet;
 import java.util.concurrent.*;
+import java.util.concurrent.atomic.*;
 
 public class JenkinsImporter {
     public static void main(String[] args) throws Exception {
@@ -28,19 +30,11 @@ public class JenkinsImporter {
                 return new JenkinsServer(executorService, jenkinsClient, uri);
             }
         });
-        final boolean[] shouldRun = new boolean[]{true};
 
-        Runtime.getRuntime().addShutdownHook(new Thread() {
-            {
-                setName("Shutdown hoook");
-            }
+        final AtomicBoolean shouldRun = new AtomicBoolean(true);
+        config.addShutdownHook(currentThread(), shouldRun);
 
-            public void run() {
-                shouldRun[0] = false;
-            }
-        });
-
-        while (shouldRun[0]) {
+        while (shouldRun.get()) {
             for (JenkinsServer server : serverManager.getObjects()) {
                 Option<P2<JenkinsXml, LocalDateTime>> o = server.getJenkins();
 
@@ -52,7 +46,9 @@ public class JenkinsImporter {
                 }
             }
 
-            Thread.sleep(1000);
+            synchronized (shouldRun) {
+                shouldRun.wait(1000);
+            }
         }
 
         serverManager.close();
diff --git a/src/main/java/io/trygvis/esper/testing/jenkins/JenkinsServer.java b/src/main/java/io/trygvis/esper/testing/jenkins/JenkinsServer.java
index 47bb005..49b8995 100644
--- a/src/main/java/io/trygvis/esper/testing/jenkins/JenkinsServer.java
+++ b/src/main/java/io/trygvis/esper/testing/jenkins/JenkinsServer.java
@@ -12,7 +12,6 @@ import java.net.*;
 import java.util.*;
 import java.util.HashSet;
 import java.util.List;
-import java.util.Set;
 import java.util.concurrent.*;
 
 public class JenkinsServer implements Closeable {
diff --git a/src/main/java/io/trygvis/esper/testing/nexus/NexusClient.java b/src/main/java/io/trygvis/esper/testing/nexus/NexusClient.java
index 6477a80..02b5e3a 100755
--- a/src/main/java/io/trygvis/esper/testing/nexus/NexusClient.java
+++ b/src/main/java/io/trygvis/esper/testing/nexus/NexusClient.java
@@ -16,9 +16,9 @@ import javax.xml.stream.*;
 
 public class NexusClient {
     private final HTTPCache http;
-    private final String nexusUrl;
+    private final URI nexusUrl;
 
-    public NexusClient(HTTPCache http, String nexusUrl) {
+    public NexusClient(HTTPCache http, URI nexusUrl) {
         this.http = http;
         this.nexusUrl = nexusUrl;
     }
@@ -36,7 +36,7 @@ public class NexusClient {
     }
 
     public ArtifactSearchResult fetchIndexPage(String groupId, Option<String> repositoryId, Option<Integer> from) throws IOException {
-        URIBuilder uriBuilder = URIBuilder.fromURI(URI.create(nexusUrl)).
+        URIBuilder uriBuilder = URIBuilder.fromURI(nexusUrl).
                 addRawPath("/service/local/lucene/search").
                 addParameter("g", groupId + ".*");
 
diff --git a/src/main/java/io/trygvis/esper/testing/nexus/NexusDao.java b/src/main/java/io/trygvis/esper/testing/nexus/NexusDao.java
index 39d4233..00e15fe 100755
--- a/src/main/java/io/trygvis/esper/testing/nexus/NexusDao.java
+++ b/src/main/java/io/trygvis/esper/testing/nexus/NexusDao.java
@@ -5,21 +5,43 @@ import static fj.data.Option.*;
 import io.trygvis.esper.testing.*;
 import org.joda.time.*;
 
+import java.net.*;
+import java.sql.Array;
 import java.sql.*;
+import java.util.*;
+import java.util.List;
 
 public class NexusDao extends Dao {
     protected NexusDao(Connection c) {
         super(c);
     }
 
-    public void insertRepository(String repositoryId, LocalDateTime discoveryDate) throws SQLException {
-        PreparedStatement s = prepareStatement("INSERT INTO nexus_repository(id) VALUES(?)");
-        s.setString(1, repositoryId);
-        s.executeUpdate();
+    /*
+    public void insertRepository(String repositoryId, URI nexusUri, LocalDateTime discoveryDate) throws SQLException {
+        int i = 1;
+        try (PreparedStatement s = prepareStatement("INSERT INTO nexus_repository(id, uri, discovered_date) VALUES(?, ?, ?)")) {
+            s.setString(i++, repositoryId);
+            s.setString(i++, nexusUri.toASCIIString());
+            s.setTimestamp(i, new Timestamp(discoveryDate.toDateTime().getMillis()));
+            s.executeUpdate();
+        }
+    }
+    */
+
+    public List<NexusServerDto> selectServer() throws SQLException {
+        try (PreparedStatement s = c.prepareStatement("SELECT url FROM nexus_server")) {
+            ResultSet rs = s.executeQuery();
+
+            List<NexusServerDto> servers = new ArrayList<>();
+            while(rs.next()) {
+                servers.add(new NexusServerDto(uri(rs.getString(1))));
+            }
+            return servers;
+        }
     }
 
-    public Option<NexusRepository> selectRepository(String repositoryId) throws SQLException {
-        PreparedStatement s = prepareStatement("SELECT id, discovery_date, last_update, last_successful_update FROM nexus_repository WHERE id=?");
+    public Option<NexusRepositoryDto> selectRepository(String repositoryId) throws SQLException {
+        PreparedStatement s = prepareStatement("SELECT id, nexus_server_url, group_ids, discovery_date, last_update, last_successful_update FROM nexus_repository WHERE id=?");
         s.setString(1, repositoryId);
 
         try (ResultSet rs = s.executeQuery()) {
@@ -27,24 +49,81 @@ public class NexusDao extends Dao {
                 return Option.none();
             }
 
-            return some(new NexusRepository(
-                    rs.getString(1),
-                    fromNull(rs.getTimestamp(2)).map(timestampToLocalDateTime),
-                    fromNull(rs.getTimestamp(3)).map(timestampToLocalDateTime),
-                    fromNull(rs.getTimestamp(4)).map(timestampToLocalDateTime)
-            ));
+            return some(toRepository(rs));
+        }
+    }
+
+    public List<NexusRepositoryDto> findRepositories(URI nexusUrl) throws SQLException {
+        PreparedStatement s = prepareStatement("SELECT id, nexus_server_url, group_ids, created_date, last_update, last_successful_update FROM nexus_repository WHERE nexus_server_url=?");
+        s.setString(1, nexusUrl.toASCIIString());
+
+        List<NexusRepositoryDto> list = new ArrayList<>();
+        try (ResultSet rs = s.executeQuery()) {
+            while(rs.next()) {
+                list.add(toRepository(rs));
+            }
+        }
+        return list;
+    }
+
+    private NexusRepositoryDto toRepository(ResultSet rs) throws SQLException {
+        int i = 1;
+
+        return new NexusRepositoryDto(
+            rs.getString(i++),
+            uri(rs.getString(i++)),
+            (String[]) rs.getArray(i++).getArray(),
+            fromNull(rs.getTimestamp(i++)).map(timestampToLocalDateTime),
+            fromNull(rs.getTimestamp(i++)).map(timestampToLocalDateTime),
+            fromNull(rs.getTimestamp(i)).map(timestampToLocalDateTime)
+        );
+    }
+
+    private URI uri(String s) {
+        try {
+            return URI.create(s);
+        } catch (Exception e) {
+            e.printStackTrace(System.out);
+            return null;
         }
     }
 }
 
-class NexusRepository {
+class NexusServerDto {
+    public final URI url;
+
+    NexusServerDto(URI url) {
+        this.url = url;
+    }
+
+    public boolean equals(Object o) {
+        if (this == o) return true;
+        if (!(o instanceof NexusServerDto)) return false;
+
+        NexusServerDto that = (NexusServerDto) o;
+
+        if (!url.equals(that.url)) return false;
+
+        return true;
+    }
+
+    public int hashCode() {
+        return url.hashCode();
+    }
+}
+
+class NexusRepositoryDto {
     public final String repositoryId;
+    public final URI nexusUrl;
+    public final String[] groupIds;
     public final Option<LocalDateTime> discoveryDate;
     public final Option<LocalDateTime> lastUpdate;
     public final Option<LocalDateTime> lastSuccessfulUpdate;
 
-    NexusRepository(String repositoryId, Option<LocalDateTime> discoveryDate, Option<LocalDateTime> lastUpdate, Option<LocalDateTime> lastSuccessfulUpdate) {
+    NexusRepositoryDto(String repositoryId, URI nexusUrl, String[] groupIds, Option<LocalDateTime> discoveryDate, Option<LocalDateTime> lastUpdate, Option<LocalDateTime> lastSuccessfulUpdate) {
         this.repositoryId = repositoryId;
+        this.nexusUrl = nexusUrl;
+        this.groupIds = groupIds;
         this.discoveryDate = discoveryDate;
         this.lastUpdate = lastUpdate;
         this.lastSuccessfulUpdate = lastSuccessfulUpdate;
diff --git a/src/main/java/io/trygvis/esper/testing/nexus/NexusImporter.java b/src/main/java/io/trygvis/esper/testing/nexus/NexusImporter.java
index 896f0e2..12d8c9c 100755
--- a/src/main/java/io/trygvis/esper/testing/nexus/NexusImporter.java
+++ b/src/main/java/io/trygvis/esper/testing/nexus/NexusImporter.java
@@ -1,24 +1,82 @@
 package io.trygvis.esper.testing.nexus;
 
 import com.google.common.collect.*;
+import com.jolbox.bonecp.*;
 import fj.data.*;
 import io.trygvis.esper.testing.*;
+import io.trygvis.esper.testing.object.*;
+import static java.lang.Thread.*;
 import org.apache.commons.lang.*;
+import org.codehaus.httpcache4j.cache.*;
 
-import java.io.*;
+import java.sql.*;
 import java.util.*;
+import java.util.concurrent.atomic.*;
 
 public class NexusImporter {
-    public static void main(String[] args) throws IOException {
-        Config config = Config.loadFromDisk();
+    public static void main(String[] args) throws Exception {
+        final Config config = Config.loadFromDisk();
 
-        NexusClient client = new NexusClient(HttpClient.createHttpClient(config), config.nexusUrl);
+        final HTTPCache http = HttpClient.createHttpClient(config);
 
-        ArtifactSearchResult result = client.fetchIndex("eu.nets", Option.<String>none());
-        ArrayList<ArtifactXml> artifacts = Lists.newArrayList(result.artifacts);
-        Collections.sort(artifacts);
-        for (ArtifactXml artifact : artifacts) {
-            System.out.println("repo=" + StringUtils.join(artifact.repositories(), ", ") + ", artifact=" + artifact.getId());
+        final BoneCPDataSource boneCp = config.createBoneCp();
+
+        ObjectManager<NexusServerDto, ActorRef<NexusServer>> serverManager = new ObjectManager<>("Nexus server", Collections.<NexusServerDto>emptySet(), new ObjectFactory<NexusServerDto, ActorRef<NexusServer>>() {
+            public ActorRef<NexusServer> create(NexusServerDto server) {
+                final NexusClient client = new NexusClient(http, server.url);
+
+                return ObjectUtil.threadedActor(boneCp, config.nexusUpdateInterval, new NexusServer(client, server));
+            }
+        });
+
+        final AtomicBoolean shouldRun = new AtomicBoolean(true);
+        config.addShutdownHook(currentThread(), shouldRun);
+
+        while (shouldRun.get()) {
+            try {
+                try (Connection c = boneCp.getConnection()) {
+                    serverManager.update(new NexusDao(c).selectServer());
+                }
+            } catch (SQLException e) {
+                e.printStackTrace(System.out);
+            }
+
+            synchronized (shouldRun) {
+                shouldRun.wait(1000);
+            }
         }
+
+        serverManager.close();
+    }
+}
+
+class NexusServer implements TransactionalActor {
+
+    public final NexusClient client;
+    public final NexusServerDto server;
+
+    NexusServer(NexusClient client, NexusServerDto server) {
+        this.client = client;
+        this.server = server;
+    }
+
+    public void act(Connection c) throws Exception {
+        NexusDao dao = new NexusDao(c);
+
+        for (NexusRepositoryDto repository : dao.findRepositories(server.url)) {
+            System.out.println("Updating repository: " + repository.repositoryId);
+            for (String groupId : repository.groupIds) {
+                System.out.println("Updating groupId: " + groupId);
+                ArtifactSearchResult result = client.fetchIndex(groupId, Option.<String>none());
+
+                ArrayList<ArtifactXml> artifacts = Lists.newArrayList(result.artifacts);
+                Collections.sort(artifacts);
+                for (ArtifactXml artifact : artifacts) {
+                    System.out.println("repo=" + StringUtils.join(artifact.repositories(), ", ") + ", artifact=" + artifact.getId());
+                }
+            }
+        }
+
+        c.commit();
     }
 }
diff --git a/src/main/java/io/trygvis/esper/testing/object/ActorRef.java b/src/main/java/io/trygvis/esper/testing/object/ActorRef.java
new file mode 100644
index 0000000..bc64da3
--- /dev/null
+++ b/src/main/java/io/trygvis/esper/testing/object/ActorRef.java
@@ -0,0 +1,7 @@
+package io.trygvis.esper.testing.object;
+
+import java.io.*;
+
+public interface ActorRef<A> extends Closeable {
+    A underlying();
+}
diff --git a/src/main/java/io/trygvis/esper/testing/object/ObjectUtil.java b/src/main/java/io/trygvis/esper/testing/object/ObjectUtil.java
new file mode 100644
index 0000000..6b6fe75
--- /dev/null
+++ b/src/main/java/io/trygvis/esper/testing/object/ObjectUtil.java
@@ -0,0 +1,69 @@
+package io.trygvis.esper.testing.object;
+
+import javax.sql.*;
+import java.io.*;
+import java.sql.*;
+
+public class ObjectUtil {
+
+    public static <A extends TransactionalActor> ActorRef<A> threadedActor(DataSource dataSource, long delay, A actor) {
+        return new ThreadedActor<>(dataSource, actor, delay);
+    }
+
+    static class ThreadedActor<A extends TransactionalActor> implements ActorRef<A>, Runnable, Closeable {
+
+        private final DataSource dataSource;
+        private final A actor;
+        private final long delay;
+        private final Thread thread;
+        private boolean shouldRun = true;
+
+        ThreadedActor(DataSource dataSource, A actor, long delay) {
+            this.dataSource = dataSource;
+            this.actor = actor;
+            this.delay = delay;
+            thread = new Thread(this);
+            thread.setDaemon(true);
+            thread.start();
+        }
+
+        public A underlying() {
+            return actor;
+        }
+
+        @SuppressWarnings("ConstantConditions")
+        public void run() {
+            while (shouldRun) {
+                try {
+                    try (Connection c = dataSource.getConnection()) {
+                        try {
+                            actor.act(c);
+                        } finally {
+                            c.rollback();
+                        }
+                    }
+                } catch (Exception e) {
+                    e.printStackTrace(System.out);
+                }
+
+                try {
+                    Thread.sleep(delay);
+                } catch (InterruptedException e) {
+                    // ignore
+                }
+            }
+        }
+
+        public void close() throws IOException {
+            shouldRun = false;
+            thread.interrupt();
+            while (thread.isAlive()) {
+                try {
+                    thread.join();
+                } catch (InterruptedException e) {
+                    continue;
+                }
+            }
+        }
+    }
+}
diff --git a/src/main/java/io/trygvis/esper/testing/object/TransactionalActor.java b/src/main/java/io/trygvis/esper/testing/object/TransactionalActor.java
new file mode 100644
index 0000000..4d3cdce
--- /dev/null
+++ b/src/main/java/io/trygvis/esper/testing/object/TransactionalActor.java
@@ -0,0 +1,7 @@
+package io.trygvis.esper.testing.object;
+
+import java.sql.*;
+
+public interface TransactionalActor {
+    void act(Connection c) throws Exception;
+}
diff --git a/src/main/resources/ddl-nexus.sql b/src/main/resources/ddl-nexus.sql
index eaa0938..9ee35e0 100755
--- a/src/main/resources/ddl-nexus.sql
+++ b/src/main/resources/ddl-nexus.sql
@@ -2,12 +2,20 @@ BEGIN;
 
 DROP TABLE IF EXISTS nexus_event;
 DROP TABLE IF EXISTS nexus_repository;
+DROP TABLE IF EXISTS nexus_server;
+
+CREATE TABLE nexus_server (
+  url VARCHAR(1000) PRIMARY KEY
+);
 
 CREATE TABLE nexus_repository (
   id                     VARCHAR(1000) PRIMARY KEY,
-  discovered_date        TIMESTAMP,
+  nexus_server_url       VARCHAR(1000),
+  group_ids              VARCHAR(100) [],
+  created_date           TIMESTAMP,
   last_update            TIMESTAMP,
-  last_successful_update TIMESTAMP
+  last_successful_update TIMESTAMP,
+  CONSTRAINT nexus_server_fk FOREIGN KEY (nexus_server_url) REFERENCES nexus_server (url)
 );
 
 CREATE TABLE nexus_event (
@@ -20,4 +28,7 @@ CREATE TABLE nexus_event (
   CONSTRAINT nexus_repository_fk FOREIGN KEY (repository_id) REFERENCES nexus_repository (id)
 );
 
+INSERT INTO nexus_server(url) VALUES('https://oss.sonatype.org');
+INSERT INTO nexus_repository(id, nexus_server_url, group_ids) VALUES('codehaus', 'https://oss.sonatype.org', ARRAY['io.trygvis', 'org.codehaus.mojo']);
+
 COMMIT;