This document defines a MyWebCluster class that extends AbstractApplication and implements MyWebClusterConstants. It initializes a ControlledDynamicWebAppCluster called web and a MySqlNode called mysql. It configures web to listen on port 8080 and sets the database URL system property to the value of mysql's URL attribute once it is ready, calling the makeJdbcUrl method. It also adds an AutoscalerPolicy to web's cluster to scale it between 1-5 nodes based on average requests per second between 10-100.

15. public class MyWebCluster extends AbstractApplication
implements MyWebClusterConstants {
// TODO build the application
}

16. public class MyWebCluster extends AbstractApplication
implements MyWebClusterConstants {
def web = new JBoss7Server(this, war: WAR_PATH);
{
web.configure(httpPort: "8080+");
}
}

17. public class MyWebCluster extends AbstractApplication
implements MyWebClusterConstants {
def web = new JBoss7Server(this, war: WAR_PATH);
MySqlNode mysql = new MySqlNode(this, creationScriptUrl: DB_SETUP_SQL_URL);
{
web.configure(httpPort: "8080+");
}
}

18. public class MyWebCluster extends AbstractApplication
implements MyWebClusterConstants {
def web = new JBoss7Server(this, war: WAR_PATH);
MySqlNode mysql = new MySqlNode(this, creationScriptUrl: DB_SETUP_SQL_URL);
{
web.configure(httpPort: "8080+").
configure(javaSysProp("brooklyn.example.db.url"),
valueWhenAttributeReady(mysql, MySqlNode.MYSQL_URL, this.&makeJdbcUrl));
}
}

19. public class MyWebCluster extends AbstractApplication
implements MyWebClusterConstants {
def web = new ControlledDynamicWebAppCluster(this, war: WAR_PATH);
MySqlNode mysql = new MySqlNode(this, creationScriptUrl: DB_SETUP_SQL_URL);
{
web.factory.configure(httpPort: "8080+").
configure(javaSysProp("brooklyn.example.db.url"),
valueWhenAttributeReady(mysql, MySqlNode.MYSQL_URL, this.&makeJdbcUrl));
}
}

20. public class MyWebCluster extends AbstractApplication
implements MyWebClusterConstants {
def web = new ControlledDynamicWebAppCluster(this, war: WAR_PATH);
MySqlNode mysql = new MySqlNode(this, creationScriptUrl: DB_SETUP_SQL_URL);
{
web.factory.configure(httpPort: "8080+").
configure(javaSysProp("brooklyn.example.db.url"),
valueWhenAttributeReady(mysql, MySqlNode.MYSQL_URL, this.&makeJdbcUrl));
web.cluster.addPolicy(
new AutoscalerPolicy(DynamicWebAppCluster.AVERAGE_REQUESTS_PER_SECOND).
setSizeRange(1, 5).
setMetricRange(10, 100));
}
}