+++ /dev/null
-/*-
- * ============LICENSE_START=======================================================
- * ECOMP Policy Engine
- * ================================================================================
- * 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.controlloop.guard.compiler;
-
-
-import java.io.InputStream;
-import java.util.HashSet;
-import java.util.List;
-import java.util.Set;
-
-import org.openecomp.policy.controlloop.compiler.CompilerException;
-import org.openecomp.policy.controlloop.compiler.ControlLoopCompilerCallback;
-import org.openecomp.policy.controlloop.policy.guard.Constraint;
-import org.openecomp.policy.controlloop.policy.guard.ControlLoopGuard;
-import org.openecomp.policy.controlloop.policy.guard.GuardPolicy;
-import org.yaml.snakeyaml.Yaml;
-import org.yaml.snakeyaml.constructor.Constructor;
-
-public class ControlLoopGuardCompiler {
-
- private ControlLoopGuardCompiler(){
- // Private Constructor
- }
-
- public static ControlLoopGuard compile(ControlLoopGuard cLGuard, ControlLoopCompilerCallback callback) throws CompilerException {
- //
- // Ensure ControlLoopGuard has at least one guard policies
- //
- validateControlLoopGuard(cLGuard, callback);
- //
- // Ensure each guard policy has at least one constraints and all guard policies are unique
- //
- validateGuardPolicies(cLGuard.getGuards(), callback);
- //
- // Ensure constraints for each guard policy are unique
- //
- validateConstraints(cLGuard.getGuards(), callback);
-
- return cLGuard;
- }
-
- public static ControlLoopGuard compile(InputStream yamlSpecification, ControlLoopCompilerCallback callback) throws CompilerException {
- Yaml yaml = new Yaml(new Constructor(ControlLoopGuard.class));
- Object obj = yaml.load(yamlSpecification);
- if (obj == null) {
- throw new CompilerException("Could not parse yaml specification.");
- }
- if (! (obj instanceof ControlLoopGuard)) {
- throw new CompilerException("Yaml could not parse specification into required ControlLoopGuard object");
- }
- return ControlLoopGuardCompiler.compile((ControlLoopGuard) obj, callback);
- }
-
- private static void validateControlLoopGuard(ControlLoopGuard cLGuard, ControlLoopCompilerCallback callback) throws CompilerException {
- if (cLGuard == null) {
- if (callback != null) {
- callback.onError("ControlLoop Guard cannot be null");
- }
- throw new CompilerException("ControlLoop Guard cannot be null");
- }
- if (cLGuard.getGuard() == null && callback != null) {
- callback.onError("Guard version cannot be null");
- }
- if (cLGuard.getGuards() == null) {
- if (callback != null) {
- callback.onError("ControlLoop Guard should have at least one guard policies");
- }
- } else if (cLGuard.getGuards().isEmpty() && callback != null) {
- callback.onError("ControlLoop Guard should have at least one guard policies");
- }
- }
-
- private static void validateGuardPolicies(List<GuardPolicy> policies, ControlLoopCompilerCallback callback) throws CompilerException {
- if (policies == null) {
- if (callback != null) {
- callback.onError("Guard policies should not be null");
- }
- throw new CompilerException("Guard policies should not be null");
- }
- //
- // Ensure all guard policies are unique
- //
- Set<GuardPolicy> newSet = new HashSet<>(policies);
- if (newSet.size() != policies.size() && callback != null) {
- callback.onWarning("There are duplicate guard policies");
- }
- //
- // Ensure each guard policy has at least one constraints
- //
- for (GuardPolicy policy : policies) {
- if (policy.getLimit_constraints() == null || policy.getLimit_constraints().isEmpty()) {
- if (callback != null) {
- callback.onError("Guard policy " + policy.getName() + " does not have any limit constraint");
- }
- throw new CompilerException("Guard policy " + policy.getName() + " does not have any limit constraint");
- }
- }
- }
-
- private static void validateConstraints(List<GuardPolicy> policies, ControlLoopCompilerCallback callback) throws CompilerException {
- if (policies == null) {
- if (callback != null) {
- callback.onError("Guard policies should not be null");
- }
- throw new CompilerException("Guard policies should not be null");
- }
- for (GuardPolicy policy : policies) {
- Set<Constraint> newSet = new HashSet<>(policy.getLimit_constraints());
- if (newSet.size() != policy.getLimit_constraints().size() && callback != null) {
- callback.onWarning("Guard policy " + policy.getName() + " has duplicate limit constraints");
- }
- }
- }
-
-}
Code Review / policy / engine.git / blobdiff