1 files changed, 90 insertions, 0 deletions
diff --git a/yang-comparator/src/main/java/org/onap/modeling/yangkit/comparator/OperationComparator.java b/yang-comparator/src/main/java/org/onap/modeling/yangkit/comparator/OperationComparator.java
new file mode 100644
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--- /dev/null
+++ b/yang-comparator/src/main/java/org/onap/modeling/yangkit/comparator/OperationComparator.java
@@ -0,0 +1,90 @@
+/*
+Copyright 2023 Huawei Technologies
+
+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.
+ */
+
+package org.onap.modeling.yangkit.comparator;
+
+import java.util.ArrayList;
+import java.util.List;
+
+import org.yangcentral.yangkit.model.api.stmt.Operation;
+import org.yangcentral.yangkit.model.api.stmt.SchemaNode;
+import org.yangcentral.yangkit.model.api.stmt.SchemaNodeContainer;
+import org.yangcentral.yangkit.model.api.stmt.YangStatement;
+
+
+
+public class OperationComparator extends SchemaNodeComparator<Operation> {
+
+    /**
+     *
+     * @param schemaNodeContainer
+     * @return
+     */
+    private boolean hasActiveSchemaChildren(SchemaNodeContainer schemaNodeContainer) {
+        for (SchemaNode schemaNode : schemaNodeContainer.getSchemaNodeChildren()) {
+            if (schemaNode.isActive()) {
+                return true;
+            }
+        }
+        return false;
+    }
+
+    /**
+     *
+     * @param left       left statement
+     * @param right      right statement
+     * @return
+     */
+    @Override
+    protected List<YangCompareResult> compareChildren(Operation left, Operation right) {
+        List<YangCompareResult> compareResults = new ArrayList<>();
+        compareResults.addAll(compareStatements(left == null ? new ArrayList<>() : left.getEffectiveSubStatements(),
+                right == null ? new ArrayList<>() : right.getEffectiveSubStatements(), OPTION_ONLY_META));
+
+
+        List<YangStatement> leftSchemaChildren = new ArrayList<>();
+        List<YangStatement> rightSchemaChildren = new ArrayList<>();
+        //input
+        if (left.getInput() != null && left.getInput().isActive()) {
+            //check input's schema children, only more than zero can be add to left schema array
+            if (hasActiveSchemaChildren(left.getInput())) {
+                leftSchemaChildren.add(left.getInput());
+            }
+        }
+        if (right.getInput() != null && right.getInput().isActive()) {
+            //check input's schema children, only more than zero can be add to right schema array
+            if (hasActiveSchemaChildren(right.getInput())) {
+                rightSchemaChildren.add(right.getInput());
+            }
+        }
+        //output
+        if (left.getOutput() != null && left.getOutput().isActive()) {
+            //check output's schema children, only more than zero can be add to left schema array
+            if (hasActiveSchemaChildren(left.getOutput())) {
+                leftSchemaChildren.add(left.getOutput());
+            }
+        }
+        if (right.getOutput() != null && right.getOutput().isActive()) {
+            //check out's schema children, only more than zero can be add to right schema array
+            if (hasActiveSchemaChildren(right.getOutput())) {
+                rightSchemaChildren.add(right.getOutput());
+            }
+        }
+        compareResults.addAll(compareStatements(leftSchemaChildren, rightSchemaChildren, OPTION_ALL));
+        return compareResults;
+    }
+}
+