| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| */ |
| |
| package org.apache.uima.ruta.string; |
| |
| import java.util.List; |
| |
| import org.apache.uima.ruta.RutaElement; |
| import org.apache.uima.ruta.expression.RutaExpression; |
| import org.apache.uima.ruta.expression.number.INumberExpression; |
| import org.apache.uima.ruta.expression.string.IStringExpression; |
| import org.apache.uima.ruta.expression.string.StringFunctionExpression; |
| import org.apache.uima.ruta.extensions.IRutaStringFunctionExtension; |
| import org.apache.uima.ruta.extensions.RutaParseException; |
| import org.apache.uima.ruta.verbalize.RutaVerbalizer; |
| |
| public class StringOperationsExtension implements IRutaStringFunctionExtension { |
| |
| private final String[] knownExtensions = new String[] { "toUpperCase", "toLowerCase", |
| "replaceFirst", "replaceAll", "substring", "firstCharToUpperCase" }; |
| |
| private final Class<?>[] extensions = new Class[] { ToUpperCaseStringFunction.class, |
| ToLowerCaseStringFunction.class, ReplaceFirstStringFunction.class, |
| ReplaceAllStringFunction.class, SubstringStringFunction.class, |
| FirstCharToUpperCaseStringFunction.class }; |
| |
| |
| |
| public String verbalize(RutaElement element, RutaVerbalizer verbalizer) { |
| if (element instanceof ToLowerCaseStringFunction) { |
| return verbalizeName(element) + "(" |
| + verbalizer.verbalize(((ToLowerCaseStringFunction) element).getExpr()) + ")"; |
| } else if (element instanceof ToUpperCaseStringFunction) { |
| return verbalizeName(element) + "(" |
| + verbalizer.verbalize(((ToUpperCaseStringFunction) element).getExpr()) + ")"; |
| } |
| // |
| else if (element instanceof ReplaceFirstStringFunction) { |
| return verbalizeName(element) + "(" |
| + verbalizer.verbalize(((ReplaceFirstStringFunction) element).getExpr()) + ")"; |
| } else if (element instanceof ReplaceAllStringFunction) { |
| return verbalizeName(element) + "(" |
| + verbalizer.verbalize(((ReplaceAllStringFunction) element).getExpr()) + ")"; |
| } else if (element instanceof SubstringStringFunction) { |
| return verbalizeName(element) + "(" |
| + verbalizer.verbalize(((SubstringStringFunction) element).getExpr()) + ")"; |
| } else if (element instanceof FirstCharToUpperCaseStringFunction) { |
| return verbalizeName(element) + "(" |
| + verbalizer.verbalize(((FirstCharToUpperCaseStringFunction) element).getExpr()) |
| + ")"; |
| } |
| // |
| else { |
| return "UnknownStringFunction"; |
| } |
| } |
| |
| public StringFunctionExpression createStringFunction(String name, List<RutaExpression> args) |
| throws RutaParseException { |
| if (args == null || !(args.get(0) instanceof IStringExpression)) { |
| throw new RutaParseException("You have to specify StringExpressions to use these Functions !"); |
| } |
| |
| // ToUpperCase [0] is the String to change |
| if (name.equals(knownExtensions[0])) { |
| return new ToUpperCaseStringFunction((IStringExpression) args.get(0)); |
| } |
| |
| // ToLowerCase Function |
| else if (name.equals(knownExtensions[1])) { |
| return new ToLowerCaseStringFunction((IStringExpression) args.get(0)); |
| } |
| |
| // FirstCharToUppercase |
| else if (name.equals(knownExtensions[5])) { |
| return new FirstCharToUpperCaseStringFunction((IStringExpression) args.get(0)); |
| } |
| |
| if(args.size()!=3){ |
| throw new RutaParseException("You need 3 Arguments to use ReplaceFirst, ReplaceAll, Substring"); |
| } |
| // ReplaceFirst [0] is the String where stuff is to be replaced, [1] is the search term [2] is the replacement |
| if (name.equals(knownExtensions[2])) { |
| return new ReplaceFirstStringFunction((IStringExpression) args.get(0),(IStringExpression) args.get(1),(IStringExpression) args.get(2)); |
| } |
| // ReplaceAll [0] is the String where stuff is to be replaced, [1] is the search term [2] is the replacement |
| else if (name.equals(knownExtensions[3])) { |
| return new ReplaceAllStringFunction((IStringExpression) args.get(0),(IStringExpression) args.get(1),(IStringExpression) args.get(2)); |
| } |
| // Substring [0] is the String where stuff is to be replaced, [1] is the begin index [2] is the endIndex |
| else if (name.equals(knownExtensions[4])) { |
| return new SubstringStringFunction((IStringExpression) args.get(0),(INumberExpression) args.get(1),(INumberExpression)args.get(2)); |
| } |
| |
| return null; |
| } |
| |
| public String verbalizeName(RutaElement element) { |
| |
| if (element instanceof ToUpperCaseStringFunction) { |
| return knownExtensions[0]; |
| } |
| |
| else if (element instanceof ToLowerCaseStringFunction) { |
| return knownExtensions[1]; |
| } |
| |
| |
| else if (element instanceof ReplaceFirstStringFunction) { |
| return knownExtensions[2]; |
| } |
| |
| else if (element instanceof ReplaceAllStringFunction) { |
| return knownExtensions[3]; |
| } |
| |
| else if (element instanceof SubstringStringFunction) { |
| return knownExtensions[4]; |
| } |
| |
| else if (element instanceof FirstCharToUpperCaseStringFunction) { |
| return knownExtensions[5]; |
| } |
| |
| |
| |
| |
| else { |
| return "UnknownStringFunction"; |
| } |
| } |
| |
| public String[] getKnownExtensions() { |
| return knownExtensions; |
| } |
| |
| public Class<?>[] extensions() { |
| return extensions; |
| } |
| |
| } |