1 /* 2 * Copyright 2008 University Corporation for Advanced Internet Development, Inc. 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package edu.internet2.middleware.ant.util; 18 19 import java.util.regex.Matcher; 20 import java.util.regex.Pattern; 21 22 import org.apache.tools.ant.BuildException; 23 import org.apache.tools.ant.Task; 24 25 /** 26 * A task that splits a string based on a regular expression. 27 * 28 * This ant task requires three attributes: 29 * <ul> 30 * <li><strong>input</strong> - the value to be split by the regular expression</li> 31 * <li><strong>regex</strong> - regular expression, with one matching group, use to split the string</li> 32 * <li><strong>addProperty</strong> - name of the property that will receive the split string</li> 33 * <ul> 34 */ 35 public class RegexSplit extends Task { 36 37 /** The input string to be split. */ 38 private String input; 39 40 /** The regular expression used to split the input string. */ 41 private String regex; 42 43 /** The name of the property that will receive the split string. */ 44 private String addProperty; 45 46 /** {@inheritDoc} */ 47 public void execute() throws BuildException { 48 Pattern regexPat = Pattern.compile(regex); 49 Matcher stringSplitter = regexPat.matcher(input); 50 stringSplitter.matches(); 51 getProject().setProperty(addProperty, stringSplitter.group(1)); 52 } 53 54 /** 55 * Sets the input string to be split. 56 * 57 * @param input input string to be split 58 */ 59 public void setInput(String input) { 60 this.input = input.trim(); 61 } 62 63 /** 64 * Sets the regular expression used to split the input string. 65 * 66 * @param regex regular expression used to split the input string 67 */ 68 public void setRegex(String regex) { 69 this.regex = regex; 70 } 71 72 /** 73 * Sets the name of the property that will receive the split string. 74 * 75 * @param addProperty name of the property that will receive the split string 76 */ 77 public void setAddProperty(String addProperty) { 78 this.addProperty = addProperty; 79 } 80 81 }