-/*******************************************************************************\r
- * Copyright (c) 2007, 2010 Association for Decentralized Information Management\r
- * in Industry THTH ry.\r
- * All rights reserved. This program and the accompanying materials\r
- * are made available under the terms of the Eclipse Public License v1.0\r
- * which accompanies this distribution, and is available at\r
- * http://www.eclipse.org/legal/epl-v10.html\r
- *\r
- * Contributors:\r
- * VTT Technical Research Centre of Finland - initial API and implementation\r
- *******************************************************************************/\r
-package org.simantics.modeling.ui.diagram.monitor;\r
-\r
-import org.simantics.basicexpression.Expressions;\r
-import org.simantics.basicexpression.analysis.ExpressionException;\r
-import org.simantics.common.format.Formatter;\r
-import org.simantics.db.ReadGraph;\r
-import org.simantics.db.common.request.TernaryRead;\r
-import org.simantics.db.exception.DatabaseException;\r
-import org.simantics.db.layer0.variable.Variable;\r
-import org.simantics.utils.ui.ErrorLogger;\r
-\r
-final public class MonitorValue extends TernaryRead<String, Formatter, Variable, String> {\r
-\r
- public MonitorValue(String expression, Formatter formatter, Variable variable) {\r
- super(expression, formatter, variable);\r
- }\r
-\r
- @Override\r
- public String perform(ReadGraph graph) throws DatabaseException {\r
- if (parameter == null)\r
- return null;\r
-\r
- MonitorExpressionVisitor visitor = new MonitorExpressionVisitor(graph, parameter2, parameter3);\r
- try {\r
- Expressions.evaluate(parameter, visitor);\r
- Object result = visitor.getResult();\r
- if (result instanceof Throwable)\r
- return ((Throwable) result).getLocalizedMessage();\r
- return result != null ? result.toString() : "null";\r
- } catch (ExpressionException e) {\r
- ErrorLogger.defaultLogError(e);\r
- return e.getMessage();\r
- }\r
- }\r
-\r
-}\r
+/*******************************************************************************
+ * Copyright (c) 2007, 2010 Association for Decentralized Information Management
+ * in Industry THTH ry.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ * VTT Technical Research Centre of Finland - initial API and implementation
+ *******************************************************************************/
+package org.simantics.modeling.ui.diagram.monitor;
+
+import org.simantics.basicexpression.Expressions;
+import org.simantics.basicexpression.analysis.ExpressionException;
+import org.simantics.common.format.Formatter;
+import org.simantics.db.ReadGraph;
+import org.simantics.db.common.request.TernaryRead;
+import org.simantics.db.exception.DatabaseException;
+import org.simantics.db.layer0.variable.Variable;
+import org.simantics.utils.ui.ErrorLogger;
+
+final public class MonitorValue extends TernaryRead<String, Formatter, Variable, String> {
+
+ public MonitorValue(String expression, Formatter formatter, Variable variable) {
+ super(expression, formatter, variable);
+ }
+
+ @Override
+ public String perform(ReadGraph graph) throws DatabaseException {
+ if (parameter == null)
+ return null;
+
+ MonitorExpressionVisitor visitor = new MonitorExpressionVisitor(graph, parameter2, parameter3);
+ try {
+ Expressions.evaluate(parameter, visitor);
+ Object result = visitor.getResult();
+ if (result instanceof Throwable)
+ return ((Throwable) result).getLocalizedMessage();
+ return result != null ? result.toString() : "null"; //$NON-NLS-1$
+ } catch (ExpressionException e) {
+ ErrorLogger.defaultLogError(e);
+ return e.getMessage();
+ }
+ }
+
+}