#211 : Use a enum for different configuration options

Author: S L

src/main/java/pl/project13/maven/git/CommitIdGenerationModeEnum.java

@@ -0,0 +1,34 @@
+/*
+ * This file is part of git-commit-id-plugin by Konrad 'ktoso' Malawski <[email protected]>
+ *
+ * git-commit-id-plugin is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * git-commit-id-plugin is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with git-commit-id-plugin.  If not, see <http://www.gnu.org/licenses/>.
+ */
+package pl.project13.maven.git;
+
+public enum CommitIdGenerationModeEnum{
+  FULL,
+  FLAT,
+  UNKNOWN;
+	
+  public static CommitIdGenerationModeEnum getValue(String o){
+    if(o != null){
+      for(CommitIdGenerationModeEnum v : values()){
+        if(v.name().toString().equalsIgnoreCase(o)){
+          return v;
+        }
+      }
+    }
+    return CommitIdGenerationModeEnum.UNKNOWN;
+  }	
+}

src/main/java/pl/project13/maven/git/GitCommitIdMojo.java

@@ -404,16 +404,13 @@ public void execute() throws MojoExecutionException {
     }
 
     try {
-      if(commitIdGenerationMode == null){
-        commitIdGenerationMode = "flat";
-      }
-      switch(commitIdGenerationMode.toLowerCase()){
+      switch(CommitIdGenerationModeEnum.getValue(commitIdGenerationMode)){
       default:
         loggerBridge.warn("Detected wrong setting for 'commitIdGenerationMode' will fallback to default 'flat'-Mode!");
-      case "flat":
+      case FLAT:
         COMMIT_ID = COMMIT_ID_FLAT;
         break;
-      case "full":
+      case FULL:
         COMMIT_ID = COMMIT_ID_FULL;
         break;
       }