X-Git-Url: https://gerrit.simantics.org/r/gitweb?a=blobdiff_plain;f=bundles%2Forg.simantics.databoard%2Fsrc%2Forg%2Fsimantics%2Fdataboard%2FUnits.java;fp=bundles%2Forg.simantics.databoard%2Fsrc%2Forg%2Fsimantics%2Fdataboard%2FUnits.java;h=e1717fe98d1b92d1bab325cf96294875a669d607;hb=969bd23cab98a79ca9101af33334000879fb60c5;hp=0000000000000000000000000000000000000000;hpb=866dba5cd5a3929bbeae85991796acb212338a08;p=simantics%2Fplatform.git

diff --git a/bundles/org.simantics.databoard/src/org/simantics/databoard/Units.java b/bundles/org.simantics.databoard/src/org/simantics/databoard/Units.java
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index 000000000..e1717fe98
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+++ b/bundles/org.simantics.databoard/src/org/simantics/databoard/Units.java
@@ -0,0 +1,48 @@
+/*******************************************************************************
+ *  Copyright (c) 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.databoard;
+
+import org.simantics.databoard.units.ConverterCreator;
+import org.simantics.databoard.units.IUnitConverter;
+import org.simantics.databoard.units.IdentityConverter;
+import org.simantics.databoard.units.internal.UnitParseException;
+import org.simantics.databoard.units.internal.library.UnitLibrary;
+
+public class Units {
+
+	public static UnitLibrary library = UnitLibrary.createDefault();
+	
+	/**
+	 * Create converter
+	 * 
+	 * @param sourceUnit
+	 * @param targetUnit
+	 * @return the converter
+	 * @throws UnitParseException
+	 */
+	public static IUnitConverter createConverter(String sourceUnit, String targetUnit) throws UnitParseException {
+		if(sourceUnit.equals(targetUnit))
+			return IdentityConverter.INSTANCE;
+		ConverterCreator creator = new ConverterCreator(library);
+		creator.unit(sourceUnit, 1);
+		creator.unit(targetUnit, -1);
+		return creator.createConverter();
+	}	
+	
+	public static double convert(double value, String sourceUnit, String targetUnit) throws UnitParseException {
+		IUnitConverter c = createConverter(sourceUnit, targetUnit);
+		if (c==null) throw new UnitParseException(sourceUnit+" or "+targetUnit, "could not convert");
+		return c.convert(value);
+	}
+
+	
+}