Merge pull request #1977 from swagger-api/issue-1976

added args for maven plugin

modules/swagger-codegen/src/main/java/io/swagger/codegen/utils/OptionUtils.java

@@ -0,0 +1,43 @@
+package io.swagger.codegen.utils;
+
+import org.apache.commons.lang3.tuple.Pair;
+
+import java.util.ArrayList;
+import java.util.List;
+
+import static org.apache.commons.lang3.StringUtils.isNotEmpty;
+
+public class OptionUtils {
+
+    public static List<Pair<String, String>> parseCommaSeparatedTuples(String input) {
+
+        List<Pair<String, String>> results = new ArrayList<Pair<String, String>>();
+
+        final List<String> tuples = splitCommaSeparatedList(input);
+
+        for (String tuple : tuples) {
+            int ix = tuple.indexOf('=');
+            if (ix > 0 && ix < tuple.length() - 1) {
+                final Pair<String, String> pair = Pair.of(tuple.substring(0, ix), tuple.substring(ix + 1));
+                results.add(pair);
+            }
+        }
+
+        return results;
+    }
+
+    public static List<String> splitCommaSeparatedList(String input) {
+
+        List<String> results = new ArrayList<String>();
+
+        if(input != null && !input.isEmpty()) {
+            for (String value : input.split(",")) {
+                if(isNotEmpty(value))
+                results.add(value);
+            }
+        }
+
+        return results;
+    }
+
+}