1 files changed, 127 insertions, 0 deletions
diff --git a/openecomp-be/lib/openecomp-core-lib/openecomp-nosqldb-lib/openecomp-nosqldb-api/src/main/java/org/openecomp/core/util/UniqueValueUtil.java b/openecomp-be/lib/openecomp-core-lib/openecomp-nosqldb-lib/openecomp-nosqldb-api/src/main/java/org/openecomp/core/util/UniqueValueUtil.java
new file mode 100644
index 0000000000..a82c97c51c
--- /dev/null
+++ b/openecomp-be/lib/openecomp-core-lib/openecomp-nosqldb-lib/openecomp-nosqldb-api/src/main/java/org/openecomp/core/util/UniqueValueUtil.java
@@ -0,0 +1,127 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * SDC
+ * ================================================================================
+ * 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.core.util;
+
+import org.openecomp.core.dao.UniqueValueDao;
+import org.openecomp.core.dao.UniqueValueDaoFactory;
+import org.openecomp.core.dao.types.UniqueValueEntity;
+import org.openecomp.core.utilities.CommonMethods;
+import org.openecomp.sdc.common.errors.CoreException;
+import org.openecomp.sdc.common.errors.ErrorCategory;
+import org.openecomp.sdc.common.errors.ErrorCode;
+
+import java.util.Optional;
+
+/**
+ * The type Unique value util.
+ */
+public class UniqueValueUtil {
+  /**
+   * The constant UNIQUE_VALUE_VIOLATION.
+   */
+  public static final String UNIQUE_VALUE_VIOLATION = "UNIQUE_VALUE_VIOLATION";
+  private static final String UNIQUE_VALUE_VIOLATION_MSG = "%s with the value '%s' already exists.";
+
+  private static final UniqueValueDao uniqueValueDao =
+      UniqueValueDaoFactory.getInstance().createInterface();
+
+  /**
+   * Create unique value.
+   *
+   * @param type              the type
+   * @param uniqueCombination the unique combination
+   */
+  public static void createUniqueValue(String type, String... uniqueCombination) {
+    Optional<String> value = formatValue(uniqueCombination);
+    if (!value.isPresent()) {
+      return;
+    }
+    validateUniqueValue(type, value.get(), uniqueCombination);
+    uniqueValueDao.create(new UniqueValueEntity(type, value.get()));
+  }
+
+  /**
+   * Delete unique value.
+   *
+   * @param type              the type
+   * @param uniqueCombination the unique combination
+   */
+  public static void deleteUniqueValue(String type, String... uniqueCombination) {
+    Optional<String> value = formatValue(uniqueCombination);
+    if (!value.isPresent()) {
+      return;
+    }
+    uniqueValueDao.delete(new UniqueValueEntity(type, value.get()));
+  }
+
+  /**
+   * Update unique value.
+   *
+   * @param type          the type
+   * @param oldValue      the old value
+   * @param newValue      the new value
+   * @param uniqueContext the unique context
+   */
+  public static void updateUniqueValue(String type, String oldValue, String newValue,
+                                       String... uniqueContext) {
+    if ((newValue != null && oldValue != null
+        && !newValue.toLowerCase().equals(oldValue.toLowerCase()))
+        || newValue == null || oldValue == null) {
+      createUniqueValue(type, CommonMethods.concat(uniqueContext, new String[]{newValue}));
+      deleteUniqueValue(type, CommonMethods.concat(uniqueContext, new String[]{oldValue}));
+    }
+  }
+
+  /**
+   * Validate unique value.
+   *
+   * @param type              the type
+   * @param uniqueCombination the unique combination
+   */
+  public static void validateUniqueValue(String type, String... uniqueCombination) {
+    Optional<String> value = formatValue(uniqueCombination);
+    if (!value.isPresent()) {
+      return;
+    }
+    validateUniqueValue(type, value.get(), uniqueCombination);
+  }
+
+  private static void validateUniqueValue(String type, String value, String... uniqueCombination) {
+    if (uniqueValueDao.get(new UniqueValueEntity(type, value)) != null) {
+      throw new CoreException(new ErrorCode.ErrorCodeBuilder()
+          .withCategory(ErrorCategory.APPLICATION)
+          .withId(UNIQUE_VALUE_VIOLATION)
+          .withMessage(String.format(UNIQUE_VALUE_VIOLATION_MSG, type,
+              uniqueCombination[uniqueCombination.length - 1])).build());
+    }
+  }
+
+  private static Optional<String> formatValue(String[] uniqueCombination) {
+    if (uniqueCombination == null || uniqueCombination.length == 0
+        || uniqueCombination[uniqueCombination.length - 1] == null) {
+      return Optional.empty();
+    }
+
+    uniqueCombination[uniqueCombination.length - 1] =
+        uniqueCombination[uniqueCombination.length - 1].toLowerCase();
+    return Optional.of(CommonMethods.arrayToSeparatedString(uniqueCombination, '_'));
+  }
+}