1 files changed, 33 insertions, 0 deletions
diff --git a/anttasks/src/com/android/ant/TaskHelper.java b/anttasks/src/com/android/ant/TaskHelper.java
new file mode 100644
index 0000000..361725a
--- /dev/null
+++ b/anttasks/src/com/android/ant/TaskHelper.java
@@ -0,0 +1,33 @@
+/*
+ * Copyright (C) 2010 The Android Open Source Project
+ *
+ * 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 com.android.ant;
+
+import org.apache.tools.ant.BuildException;
+import org.apache.tools.ant.types.Path;
+
+public class TaskHelper {
+
+    public static String checkSinglePath(String attribute, Path path) {
+        String[] paths = path.list();
+        if (paths.length != 1) {
+            throw new BuildException(String.format("Path value for '%1$s' is not valid.", attribute));
+        }
+
+        return paths[0];
+    }
+
+}