1 files changed, 159 insertions, 122 deletions
diff --git a/policy-management/src/main/java/org/onap/policy/drools/system/Main.java b/policy-management/src/main/java/org/onap/policy/drools/system/Main.java
index c8956839..79268b2c 100644
--- a/policy-management/src/main/java/org/onap/policy/drools/system/Main.java
+++ b/policy-management/src/main/java/org/onap/policy/drools/system/Main.java
@@ -32,130 +32,167 @@ import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
 /**
- * Programmatic entry point to the management layer
+ * Programmatic entry point to the management layer.
  */
 public class Main {
 
-  /**
-   * logback configuration file system property
-   */
-  public static final String LOGBACK_CONFIGURATION_FILE_SYSTEM_PROPERTY =
-      "logback.configurationFile";
-
-  /**
-   * logback configuration file system property
-   */
-  public static final String LOGBACK_CONFIGURATION_FILE_DEFAULT = "config/logback.xml";
-
-  /**
-   * constructor (hides public default one)
-   */
-  private Main() {}
-
-  /**
-   * main
-   *
-   * @param args program arguments
-   */
-  public static void main(String[] args) {
-
-    /* logging defaults */
-
-    if (System.getProperty(LOGBACK_CONFIGURATION_FILE_SYSTEM_PROPERTY) == null) {
-      if (Files.exists(Paths.get(LOGBACK_CONFIGURATION_FILE_DEFAULT))) {
-        System.setProperty(LOGBACK_CONFIGURATION_FILE_SYSTEM_PROPERTY,
-            LOGBACK_CONFIGURATION_FILE_DEFAULT);
-      } else {
-        LoggerUtil.setLevel(LoggerUtil.ROOT_LOGGER, ch.qos.logback.classic.Level.INFO.toString());
-      }
+    /** logback configuration file system property. */
+    public static final String LOGBACK_CONFIGURATION_FILE_SYSTEM_PROPERTY =
+            "logback.configurationFile";
+
+    /** logback configuration file system property. */
+    public static final String LOGBACK_CONFIGURATION_FILE_DEFAULT = "config/logback.xml";
+
+    /** constructor (hides public default one). */
+    private Main() {}
+
+    /**
+     * main.
+     *
+     * @param args program arguments.
+     */
+    public static void main(String[] args) {
+
+        /* logging defaults */
+
+        if (System.getProperty(LOGBACK_CONFIGURATION_FILE_SYSTEM_PROPERTY) == null) {
+            if (Files.exists(Paths.get(LOGBACK_CONFIGURATION_FILE_DEFAULT))) {
+                System.setProperty(
+                        LOGBACK_CONFIGURATION_FILE_SYSTEM_PROPERTY, LOGBACK_CONFIGURATION_FILE_DEFAULT);
+            } else {
+                LoggerUtil.setLevel(LoggerUtil.ROOT_LOGGER, ch.qos.logback.classic.Level.INFO.toString());
+            }
+        }
+
+        /* make sure the default configuration directory is properly set up */
+
+        SystemPersistence.manager.setConfigurationDir(null);
+
+        /* logging defaults */
+
+        if (System.getProperty(LOGBACK_CONFIGURATION_FILE_SYSTEM_PROPERTY) == null) {
+            if (Files.exists(Paths.get(LOGBACK_CONFIGURATION_FILE_DEFAULT))) {
+                System.setProperty(
+                        LOGBACK_CONFIGURATION_FILE_SYSTEM_PROPERTY, LOGBACK_CONFIGURATION_FILE_DEFAULT);
+            } else {
+                LoggerUtil.setLevel(LoggerUtil.ROOT_LOGGER, ch.qos.logback.classic.Level.INFO.toString());
+            }
+        }
+
+        /* 0. boot */
+
+        PolicyEngine.manager.boot(args);
+
+        /* start logger */
+
+        final Logger logger = LoggerFactory.getLogger(Main.class);
+
+        /* 1.a. Configure the Engine */
+
+        Properties engineProperties = SystemPersistence.manager.getEngineProperties();
+        if (engineProperties == null) {
+            engineProperties = PolicyEngine.manager.defaultTelemetryConfig();
+        }
+
+        PolicyEngine.manager.configure(engineProperties);
+
+        /* 1.b. Load Installation Environment(s) */
+
+        for (final Properties env : SystemPersistence.manager.getEnvironmentProperties()) {
+            PolicyEngine.manager.setEnvironment(env);
+        }
+
+        /* 2. Start the Engine with the basic services only (no Policy Controllers) */
+
+        MDCTransaction trans =
+                MDCTransaction.newTransaction(null, null)
+                .setServiceName(Main.class.getSimpleName())
+                .setTargetEntity("engine")
+                .setTargetServiceName("start");
+        try {
+            final boolean success = PolicyEngine.manager.start();
+            if (!success) {
+                trans.setStatusCode(false).setResponseDescription("partial start").flush();
+                logger.warn(
+                        LoggerUtil.TRANSACTION_LOG_MARKER,
+                        "Main: {} has been partially started",
+                        PolicyEngine.manager);
+            } else {
+                trans.setStatusCode(true).transaction();
+            }
+        } catch (final IllegalStateException e) {
+            trans
+                .setStatusCode(false)
+                .setResponseCode(e.getClass().getSimpleName())
+                .setResponseDescription(e.getMessage())
+                .flush();
+            logger.warn(
+                    LoggerUtil.TRANSACTION_LOG_MARKER,
+                    "Main: cannot start {} (bad state) because of {}",
+                    PolicyEngine.manager,
+                    e.getMessage(),
+                    e);
+        } catch (final Exception e) {
+            trans
+                .setStatusCode(false)
+                .setResponseCode(e.getClass().getSimpleName())
+                .setResponseDescription(e.getMessage())
+                .flush();
+            logger.warn(
+                    LoggerUtil.TRANSACTION_LOG_MARKER,
+                    "Main: cannot start {} because of {}",
+                    PolicyEngine.manager,
+                    e.getMessage(),
+                    e);
+            System.exit(1);
+        }
+
+        /* 3. Create and start the controllers */
+
+        for (final Properties controllerProperties :
+            SystemPersistence.manager.getControllerProperties()) {
+            final String controllerName =
+                    controllerProperties.getProperty(DroolsProperties.PROPERTY_CONTROLLER_NAME);
+            try {
+                trans =
+                        MDCTransaction.newTransaction(null, null)
+                        .setServiceName(Main.class.getSimpleName())
+                        .setTargetEntity("controller:" + controllerName)
+                        .setTargetServiceName("start");
+
+                final PolicyController controller =
+                        PolicyEngine.manager.createPolicyController(controllerName, controllerProperties);
+                controller.start();
+
+                trans
+                    .setStatusCode(true)
+                    .setResponseDescription(controller.getDrools().getCanonicalSessionNames().toString())
+                    .transaction();
+            } catch (final Exception e) {
+                trans
+                    .setStatusCode(false)
+                    .setResponseCode(e.getClass().getSimpleName())
+                    .setResponseDescription(e.getMessage())
+                    .flush();
+                logger.error(
+                        LoggerUtil.TRANSACTION_LOG_MARKER,
+                        "Main: cannot instantiate policy-controller {} because of {}",
+                        controllerName,
+                        e.getMessage(),
+                        e);
+            } catch (final LinkageError e) {
+                trans
+                    .setStatusCode(false)
+                    .setResponseCode(e.getClass().getSimpleName())
+                    .setResponseDescription(e.getMessage())
+                    .flush();
+                logger.warn(
+                        LoggerUtil.TRANSACTION_LOG_MARKER,
+                        "Main: cannot instantiate policy-controller {} (linkage) because of {}",
+                        controllerName,
+                        e.getMessage(),
+                        e);
+            }
+        }
     }
-
-    /* make sure the default configuration directory is properly set up */
-
-    SystemPersistence.manager.setConfigurationDir(null);
-
-    /* logging defaults */
-
-    if (System.getProperty(LOGBACK_CONFIGURATION_FILE_SYSTEM_PROPERTY) == null) {
-      if (Files.exists(Paths.get(LOGBACK_CONFIGURATION_FILE_DEFAULT))) {
-        System.setProperty(LOGBACK_CONFIGURATION_FILE_SYSTEM_PROPERTY,
-            LOGBACK_CONFIGURATION_FILE_DEFAULT);
-      } else {
-        LoggerUtil.setLevel(LoggerUtil.ROOT_LOGGER, ch.qos.logback.classic.Level.INFO.toString());
-      }
-    }
-
-    /* 0. boot */
-
-    PolicyEngine.manager.boot(args);
-
-    /* start logger */
-
-    final Logger logger = LoggerFactory.getLogger(Main.class);
-
-    /* 1.a. Configure the Engine */
-
-    Properties engineProperties = SystemPersistence.manager.getEngineProperties();
-    if (engineProperties == null)
-      engineProperties = PolicyEngine.manager.defaultTelemetryConfig();
-
-    PolicyEngine.manager.configure(engineProperties);
-
-    /* 1.b. Load Installation Environment(s) */
-
-    for (final Properties env : SystemPersistence.manager.getEnvironmentProperties()) {
-      PolicyEngine.manager.setEnvironment(env);
-    }
-
-    /* 2. Start the Engine with the basic services only (no Policy Controllers) */
-
-    MDCTransaction trans =
-        MDCTransaction.newTransaction(null, null).setServiceName(Main.class.getSimpleName()).
-          setTargetEntity("engine").setTargetServiceName("start");
-    try {
-      final boolean success = PolicyEngine.manager.start();
-      if (!success) {
-        trans.setStatusCode(false).setResponseDescription("partial start").flush();
-        logger.warn(LoggerUtil.TRANSACTION_LOG_MARKER, "Main: {} has been partially started", PolicyEngine.manager);
-      } else {
-        trans.setStatusCode(true).transaction();
-      }
-    } catch (final IllegalStateException e) {
-      trans.setStatusCode(false).setResponseCode(e.getClass().getSimpleName()).setResponseDescription(e.getMessage()).flush();
-      logger.warn(LoggerUtil.TRANSACTION_LOG_MARKER, "Main: cannot start {} (bad state) because of {}", PolicyEngine.manager, e.getMessage(), e);
-    } catch (final Exception e) {
-      trans.setStatusCode(false).setResponseCode(e.getClass().getSimpleName()).setResponseDescription(e.getMessage()).flush();
-      logger.warn(LoggerUtil.TRANSACTION_LOG_MARKER, "Main: cannot start {} because of {}", PolicyEngine.manager, e.getMessage(), e);
-      System.exit(1);
-    }
-
-    /* 3. Create and start the controllers */
-
-    for (final Properties controllerProperties : SystemPersistence.manager
-        .getControllerProperties()) {
-      final String controllerName =
-          controllerProperties.getProperty(DroolsProperties.PROPERTY_CONTROLLER_NAME);
-      try {
-        trans =
-            MDCTransaction.newTransaction(null, null).setServiceName(Main.class.getSimpleName()).
-                setTargetEntity("controller:" + controllerName).setTargetServiceName("start");
-
-        final PolicyController controller =
-            PolicyEngine.manager.createPolicyController(controllerName, controllerProperties);
-        controller.start();
-
-        trans.setStatusCode(true).
-            setResponseDescription(controller.getDrools().getCanonicalSessionNames().toString()).
-            transaction();
-      } catch (final Exception e) {
-        trans.setStatusCode(false).setResponseCode(e.getClass().getSimpleName()).setResponseDescription(e.getMessage()).flush();
-        logger.error(LoggerUtil.TRANSACTION_LOG_MARKER, "Main: cannot instantiate policy-controller {} because of {}",
-            controllerName, e.getMessage(), e);
-      } catch (final LinkageError e) {
-        trans.setStatusCode(false).setResponseCode(e.getClass().getSimpleName()).setResponseDescription(e.getMessage()).flush();
-        logger.warn(LoggerUtil.TRANSACTION_LOG_MARKER, "Main: cannot instantiate policy-controller {} (linkage) because of {}",
-            controllerName, e.getMessage(), e);
-      }
-    }
-  }
 }