1 files changed, 66 insertions, 0 deletions
diff --git a/sdc-workflow-designer-be/src/main/java/org/onap/sdc/workflow/api/types/Sorting.java b/sdc-workflow-designer-be/src/main/java/org/onap/sdc/workflow/api/types/Sorting.java
new file mode 100644
index 00000000..38b579b2
--- /dev/null
+++ b/sdc-workflow-designer-be/src/main/java/org/onap/sdc/workflow/api/types/Sorting.java
@@ -0,0 +1,66 @@
+/*
+ * Copyright © 2018 European Support Limited
+ *
+ * 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.sdc.workflow.api.types;
+
+import java.util.Arrays;
+import java.util.Collections;
+import java.util.List;
+import java.util.Objects;
+import java.util.stream.Collectors;
+import lombok.Getter;
+import org.onap.sdc.workflow.services.types.Sort;
+import org.openecomp.sdc.logging.api.Logger;
+import org.openecomp.sdc.logging.api.LoggerFactory;
+
+@Getter
+public class Sorting {
+
+    private static final String SORTS_DELIMITER = ",";
+    private static final String DIRECTION_DELIMITER = ":";
+    private static final String ASC = "asc";
+    private static final String DESC = "desc";
+    private static final Logger LOGGER = LoggerFactory.getLogger(Sorting.class);
+
+    private List<Sort> sorts = Collections.emptyList();
+
+    public void setSort(String sortString) {
+        this.sorts = Arrays.stream(sortString.split(SORTS_DELIMITER))
+                             .map(Sorting::formatSort)
+                             .filter(Objects::nonNull)
+                             .collect(Collectors.toList());
+    }
+
+    private static Sort formatSort(String sort) {
+        String[] tokens = sort.split(DIRECTION_DELIMITER, 2);
+
+        return tokens.length == 2
+                       ? formatSingleSort(tokens[0], tokens[1])
+                       : new Sort(tokens[0], true);
+    }
+
+    private static Sort formatSingleSort(String property, String direction) {
+        if (ASC.equalsIgnoreCase(direction)) {
+            return new Sort(property, true);
+        }
+        if (DESC.equalsIgnoreCase(direction)) {
+            return new Sort(property, false);
+        }
+        LOGGER.warn("Sorting direction {} of property {} is invalid. Allowed direction values: asc, desc.", direction,
+                property);
+        return null;
+    }
+}