1 files changed, 62 insertions, 0 deletions
diff --git a/aai-traversal/src/main/java/org/onap/aai/rest/dsl/validation/DslQueryValidator.java b/aai-traversal/src/main/java/org/onap/aai/rest/dsl/validation/DslQueryValidator.java
new file mode 100644
index 0000000..53f2c72
--- /dev/null
+++ b/aai-traversal/src/main/java/org/onap/aai/rest/dsl/validation/DslQueryValidator.java
@@ -0,0 +1,62 @@
+/**
+ * ============LICENSE_START=======================================================
+ * org.onap.aai
+ * ================================================================================
+ * Copyright © 2018-2019 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.aai.rest.dsl.validation;
+
+import org.onap.aai.util.AAIConfig;
+import org.onap.aai.util.TraversalConstants;
+
+import java.util.LinkedHashSet;
+import java.util.List;
+import java.util.Set;
+
+public class DslQueryValidator extends DslValidator {
+
+    protected DslQueryValidator(Builder builder) {
+        super(builder);
+    }
+
+    public boolean validate(DslValidatorRule dslValidatorRule) {
+
+        return validateLoop(dslValidatorRule.isValidateLoop(), dslValidatorRule.getEdges()) && validateNodeCount(dslValidatorRule.isValidateNodeCount(), dslValidatorRule.getNodeCount());
+    }
+
+    private boolean validateLoop(boolean isValidateLoop, List<String> edges) {
+        if (isValidateLoop) {
+            Set<String> uniqueEdges = new LinkedHashSet<>(edges);
+
+            if (uniqueEdges.size() < (edges.size() / 2)) {
+                this.errorMessage.append("Loop Validation failed");
+                return false;
+            }
+        }
+        return true;
+    }
+
+    private boolean validateNodeCount(boolean isValidateNodeCount, int nodeCount) {
+        String maxNodeString = AAIConfig.get("aai.dsl.max.nodecount", TraversalConstants.DSL_MAX_NODE_COUNT);
+        int maxNodeCount = Integer.parseInt(maxNodeString);
+        if (isValidateNodeCount && nodeCount > maxNodeCount) {
+            this.errorMessage.append("NodeCount Validation failed");
+            return false;
+        }
+        return true;
+    }
+
+}