reorganize validation package

src/main/java/ninja/javafx/smartcsv/validation/checker/GroovyValidation.java

@@ -0,0 +1,79 @@
+/*
+   The MIT License (MIT)
+   -----------------------------------------------------------------------------
+
+   Copyright (c) 2015 javafx.ninja <info@javafx.ninja>
+
+   Permission is hereby granted, free of charge, to any person obtaining a copy
+   of this software and associated documentation files (the "Software"), to deal
+   in the Software without restriction, including without limitation the rights
+   to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+   copies of the Software, and to permit persons to whom the Software is
+   furnished to do so, subject to the following conditions:
+
+   The above copyright notice and this permission notice shall be included in
+   all copies or substantial portions of the Software.
+
+   THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+   IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+   FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
+   AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+   LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+   OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+   THE SOFTWARE.
+
+*/
+package ninja.javafx.smartcsv.validation.checker;
+
+import groovy.lang.Binding;
+import groovy.lang.GroovyShell;
+import groovy.lang.Script;
+import ninja.javafx.smartcsv.validation.ValidationError;
+import org.codehaus.groovy.control.CompilationFailedException;
+
+/**
+ * Executes the given groovy as check
+ */
+public class GroovyValidation extends EmptyValueIsValid {
+
+    private String groovyScript;
+    private GroovyShell shell = new GroovyShell();
+    private Script script;
+
+    public GroovyValidation(String groovyScript) {
+        this.groovyScript = groovyScript;
+        script = shell.parse(groovyScript);
+    }
+
+
+    @Override
+    public void check(int row, String value, ValidationError error) {
+        Binding binding = new Binding();
+        binding.setVariable("value", value);
+        script.setBinding(binding);
+
+        Object groovyResult = null;
+        try {
+            groovyResult = script.run();
+        } catch (CompilationFailedException e) {
+            error.add("validation.message.groovy.exception", groovyScript, e.getMessage());
+            e.printStackTrace();
+        }
+        if (groovyResult == null) {
+            error.add("validation.message.groovy.return.null", groovyScript);
+        }
+
+        if (!isScriptResultTrue(groovyResult)) {
+            error.add(groovyResult.toString());
+        }
+    }
+
+    @Override
+    public Type getType() {
+        return Type.GROOVY;
+    }
+
+    private boolean isScriptResultTrue(Object groovyResult) {
+        return groovyResult.equals(true) || groovyResult.toString().trim().toLowerCase().equals("true");
+    }
+}