1 files changed, 125 insertions, 0 deletions
diff --git a/cps-ncmp-service/src/main/java/org/onap/cps/ncmp/api/impl/utils/RestQueryParametersValidator.java b/cps-ncmp-service/src/main/java/org/onap/cps/ncmp/api/impl/utils/RestQueryParametersValidator.java
new file mode 100644
index 000000000..2ef97cab5
--- /dev/null
+++ b/cps-ncmp-service/src/main/java/org/onap/cps/ncmp/api/impl/utils/RestQueryParametersValidator.java
@@ -0,0 +1,125 @@
+/*
+ *  ============LICENSE_START=======================================================
+ *  Copyright (C) 2022 Nordix Foundation
+ *  ================================================================================
+ *  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.
+ *
+ *  SPDX-License-Identifier: Apache-2.0
+ *  ============LICENSE_END=========================================================
+ */
+
+package org.onap.cps.ncmp.api.impl.utils;
+
+import com.google.common.base.Strings;
+import java.util.Collection;
+import java.util.Map;
+import lombok.AccessLevel;
+import lombok.NoArgsConstructor;
+import lombok.extern.slf4j.Slf4j;
+import org.onap.cps.ncmp.api.models.CmHandleQueryServiceParameters;
+import org.onap.cps.spi.exceptions.DataValidationException;
+
+@Slf4j
+@NoArgsConstructor(access = AccessLevel.PRIVATE)
+public class RestQueryParametersValidator {
+
+    /**
+     * Validate query parameters.
+     *
+     * @param cmHandleQueryServiceParameters name of data to be validated
+     * @param validConditionNames valid condition names
+     */
+    public static void validateCmHandleQueryParameters(
+        final CmHandleQueryServiceParameters cmHandleQueryServiceParameters,
+        final Collection<String> validConditionNames) {
+        cmHandleQueryServiceParameters.getCmHandleQueryParameters().forEach(
+                cmHandleQueryParameter -> {
+                    if (validConditionNames.stream().noneMatch(validConditionName ->
+                        validConditionName.equals(cmHandleQueryParameter.getConditionName()))) {
+                        throw createDataValidationException(
+                                String.format("Wrong 'conditionName': %s - please supply a valid name.",
+                                cmHandleQueryParameter.getConditionName()));
+                    }
+                    if (cmHandleQueryParameter.getConditionParameters().isEmpty()) {
+                        throw createDataValidationException(
+                                "Empty 'conditionsParameters' - please supply a valid condition parameter.");
+                    }
+                    cmHandleQueryParameter.getConditionParameters().forEach(
+                            RestQueryParametersValidator::validateConditionParameter
+                    );
+                }
+        );
+    }
+
+    private static void validateConditionParameter(final Map<String, String> conditionParameter) {
+        if (conditionParameter.isEmpty()) {
+            throw createDataValidationException(
+                    "Empty 'conditionsParameter' - please supply a valid condition parameter.");
+        }
+        if (conditionParameter.size() > 1) {
+            throw createDataValidationException("Too many names in one 'conditionsParameter' -"
+                    + " please supply one name in one condition parameter.");
+        }
+        conditionParameter.forEach((key, value) -> {
+            if (Strings.isNullOrEmpty(key)) {
+                throw createDataValidationException(
+                        "Missing 'conditionsParameterName' - please supply a valid name.");
+            }
+        });
+    }
+
+    /**
+     * Validate module name condition properties.
+     * @param conditionProperty name of data to be validated
+     */
+    public static void validateModuleNameConditionProperties(final Map<String, String> conditionProperty) {
+        if (conditionProperty.containsKey("moduleName") && !conditionProperty.get("moduleName").isEmpty()) {
+            return;
+        }
+        throw createDataValidationException("Wrong module condition property. - "
+                + "please supply a valid condition property.");
+    }
+
+    /**
+     * Validate CPS path condition properties.
+     * @param conditionProperty name of data to be validated
+     */
+    public static boolean validateCpsPathConditionProperties(final Map<String, String> conditionProperty) {
+        if (conditionProperty.isEmpty()) {
+            return true;
+        }
+        if (conditionProperty.size() > 1) {
+            throw createDataValidationException("Only one condition property is allowed for the CPS path query.");
+        }
+        if (!conditionProperty.containsKey("cpsPath")) {
+            throw createDataValidationException(
+                "Wrong CPS path condition property. - expecting \"cpsPath\" as the condition property.");
+        }
+        final String cpsPath = conditionProperty.get("cpsPath");
+        if (cpsPath.isBlank()) {
+            throw createDataValidationException(
+                "Wrong CPS path. - please supply a valid CPS path.");
+        }
+        if (cpsPath.contains("/additional-properties")) {
+            log.debug("{} - Private metadata cannot be queried. Nothing to be returned",
+                cpsPath);
+            return false;
+        }
+        return true;
+    }
+
+    private static DataValidationException createDataValidationException(final String details) {
+        return new DataValidationException("Invalid Query Parameter.", details);
+    }
+
+}