1 files changed, 110 insertions, 0 deletions
diff --git a/controlloop/common/eventmanager/src/main/java/org/onap/policy/controlloop/processor/ControlLoopProcessor.java b/controlloop/common/eventmanager/src/main/java/org/onap/policy/controlloop/processor/ControlLoopProcessor.java
new file mode 100644
index 000000000..bc94068ab
--- /dev/null
+++ b/controlloop/common/eventmanager/src/main/java/org/onap/policy/controlloop/processor/ControlLoopProcessor.java
@@ -0,0 +1,110 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * controlloop processor
+ * ================================================================================
+ * 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.onap.policy.controlloop.processor;
+
+import org.yaml.snakeyaml.Yaml;
+import org.yaml.snakeyaml.constructor.Constructor;
+
+import org.onap.policy.controlloop.ControlLoopException;
+import org.onap.policy.controlloop.policy.ControlLoop;
+import org.onap.policy.controlloop.policy.ControlLoopPolicy;
+import org.onap.policy.controlloop.policy.FinalResult;
+import org.onap.policy.controlloop.policy.Policy;
+import org.onap.policy.controlloop.policy.PolicyResult;
+
+public class ControlLoopProcessor {
+	
+	private final String yaml;
+	private final ControlLoopPolicy policy;
+	private String currentPolicy = null;
+	
+	public ControlLoopProcessor(String yaml) throws ControlLoopException {
+		this.yaml = yaml;
+		try {
+			Yaml y = new Yaml(new Constructor(ControlLoopPolicy.class));
+			Object obj = y.load(this.yaml);
+			if (obj instanceof ControlLoopPolicy) {
+				this.policy = (ControlLoopPolicy) obj;
+				this.currentPolicy = this.policy.controlLoop.trigger_policy;
+			} else {
+				this.policy = null;
+				throw new ControlLoopException("Unable to parse yaml into ControlLoopPolicy object");
+			}
+		} catch (Exception e) {
+			//
+			// Most likely this is a YAML Exception
+			//
+			throw new ControlLoopException(e);
+		}
+	}
+	
+	public ControlLoop getControlLoop() {
+		return this.policy.controlLoop;
+	}
+	
+	public FinalResult	checkIsCurrentPolicyFinal() {
+		return FinalResult.toResult(this.currentPolicy);
+	}
+	
+	public Policy	getCurrentPolicy() {
+		for (Policy policy : this.policy.policies) {
+			if (policy.id.equals(this.currentPolicy)) {
+				return policy;
+			}
+		}
+		return null;
+	}
+	
+	public void	nextPolicyForResult(PolicyResult result) throws ControlLoopException {
+		Policy policy = this.getCurrentPolicy();
+		try {
+			if (this.policy == null) {
+				throw new ControlLoopException("There is no current policy to determine where to go to.");
+			}
+			switch (result) {
+			case SUCCESS:
+				this.currentPolicy = policy.success;
+				break;
+			case FAILURE:
+				this.currentPolicy = policy.failure;
+				break;
+			case FAILURE_TIMEOUT:
+				this.currentPolicy = policy.failure_timeout;
+				break;
+			case FAILURE_RETRIES:
+				this.currentPolicy = policy.failure_retries;
+				break;
+			case FAILURE_EXCEPTION:
+				this.currentPolicy = policy.failure_exception;
+				break;
+			case FAILURE_GUARD:
+				this.currentPolicy = policy.failure_guard;
+				break;
+			default:
+				throw new ControlLoopException("Bad policy result given: " + result);
+			}
+		} catch (ControlLoopException e) {
+			this.currentPolicy = FinalResult.FINAL_FAILURE_EXCEPTION.toString();
+			throw e;
+		}
+	}
+	
+}