1 files changed, 131 insertions, 0 deletions
diff --git a/policy-management/src/main/java/org/openecomp/policy/drools/system/Main.java b/policy-management/src/main/java/org/openecomp/policy/drools/system/Main.java
new file mode 100644
index 00000000..108600b2
--- /dev/null
+++ b/policy-management/src/main/java/org/openecomp/policy/drools/system/Main.java
@@ -0,0 +1,131 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * policy-management
+ * ================================================================================
+ * Copyright (C) 2017 AT&T Intellectual Property. All rights reserved.
+ * ================================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * ============LICENSE_END=========================================================
+ */
+
+package org.openecomp.policy.drools.system;
+
+import java.io.File;
+import java.nio.file.Path;
+import java.nio.file.Paths;
+import java.util.Properties;
+
+import org.openecomp.policy.common.logging.flexlogger.FlexLogger;
+import org.openecomp.policy.common.logging.flexlogger.Logger;
+import org.openecomp.policy.drools.core.PolicyContainer;
+import org.openecomp.policy.drools.persistence.SystemPersistence;
+import org.openecomp.policy.drools.utils.PropertyUtil;
+
+/**
+ * Programmatic entry point to the management layer
+ */
+public class Main {
+	
+	/**
+	 * logger
+	 */
+	private static Logger  logger = FlexLogger.getLogger(Main.class, true);  
+	
+	public static void main(String args[]) {
+		
+		File configDir = new File(SystemPersistence.CONFIG_DIR_NAME);
+		
+		if (!configDir.isDirectory()) {
+			throw new IllegalArgumentException
+						("config directory: " + configDir.getAbsolutePath() + 
+						 " not found");
+		}
+		
+		
+		/* 0. Start the CORE layer first */
+
+		try {
+			PolicyContainer.globalInit(args);
+		} catch (Exception e) {
+			System.out.println("policy-core startup failed");
+			logger.warn("policy-core startup failed");
+			e.printStackTrace();
+		}
+		
+		/* 1. Configure the Engine */
+
+		try {
+			Path policyEnginePath = Paths.get(configDir.toPath().toString(), SystemPersistence.PROPERTIES_FILE_ENGINE);
+			Properties properties = PropertyUtil.getProperties(policyEnginePath.toFile());
+			PolicyEngine.manager.configure(properties);
+		} catch (Exception e) {
+			String msg = "Policy Engine cannot be configured with properties: " + e.getMessage() + " : " + PolicyEngine.manager;
+			System.out.println(msg);
+			logger.warn(msg);
+		}
+		
+		/* 2. Start the Engine with the basic services only (no Policy Controllers) */
+		
+		try {
+			boolean success = PolicyEngine.manager.start();
+			if (!success) {
+				System.out.println("Policy Engine found some problems starting some components: " + PolicyEngine.manager);
+				logger.warn("Policy Engine is in an invalid state: " + PolicyEngine.manager);				
+			}
+		} catch (IllegalStateException e) {
+			String msg = "Policy Engine is starting in an unexpected state: " + e.getMessage() + " : " + PolicyEngine.manager;
+			System.out.println(msg);
+			logger.warn(msg);
+		} catch (Exception e) {
+			String msg = "Unexpected Situation.  Policy Engine cannot be started: " + e.getMessage() + " : " + PolicyEngine.manager;
+			System.out.println(msg);
+			e.printStackTrace();
+			System.exit(1);
+		}
+		
+		/* 3. Create and start the controllers */
+		
+		File[] controllerFiles = configDir.listFiles();
+		for (File config : controllerFiles) {
+
+			if (config.getName().endsWith(SystemPersistence.PROPERTIES_FILE_CONTROLLER_SUFFIX)) {
+				int idxSuffix = 
+						config.getName().indexOf(SystemPersistence.PROPERTIES_FILE_CONTROLLER_SUFFIX);
+				int lastIdxSuffix = 
+						config.getName().lastIndexOf(SystemPersistence.PROPERTIES_FILE_CONTROLLER_SUFFIX);
+				if (idxSuffix != lastIdxSuffix) {
+					throw new IllegalArgumentException
+								("Improper naming of controller properties file: " +
+				                 "Expected <controller-name>" + 
+				                 SystemPersistence.PROPERTIES_FILE_CONTROLLER_SUFFIX);
+				}
+
+				String name = 
+						config.getName().substring(0, lastIdxSuffix);
+				try {
+					Properties properties = PropertyUtil.getProperties(config);
+					PolicyController controller = PolicyEngine.manager.createPolicyController(name, properties);
+					controller.start();
+				} catch (Exception e) {
+					System.out.println("can't instantiate Policy Controller based on properties file: " + 
+				                       config + " with message " + e.getMessage());
+					e.printStackTrace();
+				} catch (LinkageError le) {
+					System.out.println("can't instantiate Policy Controller based on properties file: " + 
+		                       config + ". A Linkage Error has been encountered: " + le.getMessage());
+					le.printStackTrace();					
+				}
+			}
+		}
+	}
+}