refactored commandline parser API for simpler usage

[svjatoslav_commons.git] / src / main / java / eu / svjatoslav / commons / commandline / parameterparser / type / ExistingFile.java

diff --git a/src/main/java/eu/svjatoslav/commons/commandline/parameterparser/type/ExistingFile.java b/src/main/java/eu/svjatoslav/commons/commandline/parameterparser/type/ExistingFile.java
new file mode 100755 (executable)
index 0000000..d2ce6f4
--- /dev/null
+++ b/src/main/java/eu/svjatoslav/commons/commandline/parameterparser/type/ExistingFile.java
@@ -0,0 +1,31 @@
+/*
+ * Svjatoslav Commons - shared library of common functionality.
+ * Copyright ©2012-2013, Svjatoslav Agejenko, svjatoslav@svjatoslav.eu
+ * 
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of version 2 of the GNU General Public License
+ * as published by the Free Software Foundation.
+ */
+
+package eu.svjatoslav.commons.commandline.parameterparser.type;
+
+import java.io.File;
+
+import eu.svjatoslav.commons.commandline.parameterparser.Argument;
+
+public class ExistingFile implements Argument {
+
+       @Override
+       public java.lang.String describeFormat() {
+               return "existing file";
+       }
+
+       @Override
+       public boolean validate(final java.lang.String value) {
+               final File file = new File(value);
+               if (file.exists() && file.isFile())
+                       return true;
+               return false;
+       }
+
+}