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1 /*******************************************************************************\r
2  * Copyright (c) 2011 Association for Decentralized Information Management in\r
3  * Industry THTH ry.\r
4  * All rights reserved. This program and the accompanying materials\r
5  * are made available under the terms of the Eclipse Public License v1.0\r
6  * which accompanies this distribution, and is available at\r
7  * http://www.eclipse.org/legal/epl-v10.html\r
8  *\r
9  * Contributors:\r
10  *     VTT Technical Research Centre of Finland - initial API and implementation\r
11  *******************************************************************************/\r
12 package org.simantics.db.layer0.adapter.impl;\r
13 \r
14 import org.simantics.db.ReadGraph;\r
15 import org.simantics.db.Resource;\r
16 import org.simantics.db.common.adaption.SimpleContextualAdapter;\r
17 import org.simantics.db.exception.DatabaseException;\r
18 import org.simantics.db.layer0.variable.InputValidator;\r
19 import org.simantics.db.layer0.variable.Variable;\r
20 \r
21 /**\r
22  * @author Tuukka Lehtonen\r
23  */\r
24 public abstract class LiteralInputValidator extends SimpleContextualAdapter<InputValidator, Variable> {\r
25 \r
26     @Override\r
27     public InputValidator adapt(ReadGraph g, Resource source, Variable context) throws DatabaseException {\r
28         return new InputValidator() {\r
29             @Override\r
30             public String isValid(Object newValue) {\r
31                 if (newValue instanceof String)\r
32                     return validate((String) newValue);\r
33                 return "Invalid text: " + newValue;\r
34             }\r
35         };\r
36     }\r
37 \r
38     protected abstract String validate(String newValue);\r
39 \r
40 }\r