--- /dev/null
+/*******************************************************************************\r
+ * Copyright (c) 2007 VTT Technical Research Centre of Finland and others.\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.databoard.util;\r
+\r
+import java.io.IOException;\r
+import java.io.UnsupportedEncodingException;\r
+import java.util.regex.Matcher;\r
+import java.util.regex.Pattern;\r
+import java.util.regex.PatternSyntaxException;\r
+\r
+import org.simantics.databoard.Bindings;\r
+import org.simantics.databoard.Datatypes;\r
+import org.simantics.databoard.binding.Binding;\r
+import org.simantics.databoard.binding.NumberBinding;\r
+import org.simantics.databoard.binding.StringBinding;\r
+import org.simantics.databoard.binding.error.BindingException;\r
+import org.simantics.databoard.binding.error.RuntimeBindingException;\r
+import org.simantics.databoard.binding.mutable.Variant;\r
+import org.simantics.databoard.file.RuntimeIOException;\r
+import org.simantics.databoard.serialization.Serializer;\r
+import org.simantics.databoard.serialization.SerializerConstructionException;\r
+\r
+public class StringUtil {\r
+\r
+ /**\r
+ * Convert variant to string\r
+ * \r
+ * @param v\r
+ * @return string representation\r
+ */\r
+ public static String variantToString(Variant v) {\r
+ try {\r
+ return (String) Bindings.STR_VARIANT.create(v.getBinding(), v.getValue());\r
+ } catch (BindingException e) {\r
+ throw new RuntimeBindingException(e);\r
+ }\r
+ }\r
+ \r
+ /**\r
+ * Convert variant's string representation to variant\r
+ * \r
+ * @param str\r
+ * @return variant\r
+ * @throws BindingException\r
+ */\r
+ public static Variant stringToVariant(String str) throws BindingException {\r
+ return (Variant) Bindings.VARIANT.create(Bindings.STR_VARIANT, str);\r
+ }\r
+ \r
+ /**\r
+ * Convert variant to nice user readable string.\r
+ * The string is not convertible back to variant without type information. \r
+ * \r
+ * @param v\r
+ * @return string representation of the variant\r
+ */\r
+ public static String variantToUserReadableString(Variant v) {\r
+ try {\r
+ Binding binding = v.getBinding();\r
+ Object value = v.getValue();\r
+ if ( binding == Bindings.STRING ) return (String) value;\r
+ if ( binding.type().equals(Datatypes.STRING)) {\r
+ StringBinding sb = (StringBinding) binding;\r
+ return sb.getValue(value);\r
+ }\r
+ \r
+ if (binding instanceof NumberBinding) {\r
+ return binding.toString(value);\r
+ }\r
+ \r
+ Serializer s = Bindings.getSerializer( Bindings.VARIANT );\r
+ byte[] bytes = s.serialize( v );\r
+ return Base64.encodeBytes(bytes, Base64.URL_SAFE);\r
+ } catch (BindingException e) {\r
+ // UNEXPECTED\r
+ throw new RuntimeBindingException(e);\r
+ } catch (SerializerConstructionException e) {\r
+ throw new RuntimeException(e);\r
+ } catch (IOException e) {\r
+ throw new RuntimeIOException(e);\r
+ }\r
+ } \r
+ \r
+ /**\r
+ * Create escaped filename from a string\r
+ * \r
+ * @param name any string\r
+ * @return file compatible string\r
+ */\r
+ public static String escapeToFileName(String name) {\r
+ try {\r
+ return java.net.URLEncoder.encode(name, "UTF-8");\r
+ } catch (UnsupportedEncodingException e) {\r
+ // never expected\r
+ throw new RuntimeException(e);\r
+ }\r
+ }\r
+ \r
+ /**\r
+ * Unescape filename into string \r
+ * \r
+ * @param filename \r
+ * @return any string\r
+ */\r
+ public static String unescapeFileName(String filename) {\r
+ try {\r
+ return java.net.URLDecoder.decode(filename, "UTF-8");\r
+ } catch (UnsupportedEncodingException e) {\r
+ // never expected\r
+ throw new RuntimeException(e);\r
+ }\r
+ }\r
+ \r
+ public static boolean simplePatternMatch(String str, String simplePattern)\r
+ {\r
+ try {\r
+ Pattern ptr = compileSimplePattern(simplePattern);\r
+ Matcher m = ptr.matcher(str);\r
+ return m.matches();\r
+ } catch (PatternSyntaxException pse) {\r
+ return false;\r
+ }\r
+ }\r
+ \r
+ /**\r
+ * Compiles pattern from simple pattern. Simple pattern is normal\r
+ * wild card compare that supports * and ? wild cards.\r
+ * \r
+ * @param patternStr simple pattern\r
+ * @return Regexp pattern\r
+ */\r
+ public static Pattern compileSimplePattern(String patternStr)\r
+ throws PatternSyntaxException\r
+ {\r
+ String str ="";\r
+ for (int i=0; i<patternStr.length(); i++)\r
+ {\r
+ char c = patternStr.charAt(i);\r
+ if ( (c>='a'&&c<='z') || (c>='A'&&c<='Z') || (c>='0'&&c<='9'))\r
+ str += c;\r
+ else if ( c=='?' )\r
+ str += ".?";\r
+ else if ( c=='*' )\r
+ str += ".*";\r
+ else str += "\\"+c;\r
+ }\r
+ return Pattern.compile(str);\r
+ } \r
+ \r
+}\r
+\r