| Classes in this File | Line Coverage | Branch Coverage | Complexity | ||||
| ParameterTranslator |
|
| 2.6666666666666665;2.667 |
| 1 | /* | |
| 2 | * Copyright 2005-2008 The Kuali Foundation | |
| 3 | * | |
| 4 | * | |
| 5 | * Licensed under the Educational Community License, Version 2.0 (the "License"); | |
| 6 | * you may not use this file except in compliance with the License. | |
| 7 | * You may obtain a copy of the License at | |
| 8 | * | |
| 9 | * http://www.opensource.org/licenses/ecl2.php | |
| 10 | * | |
| 11 | * Unless required by applicable law or agreed to in writing, software | |
| 12 | * distributed under the License is distributed on an "AS IS" BASIS, | |
| 13 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | |
| 14 | * See the License for the specific language governing permissions and | |
| 15 | * limitations under the License. | |
| 16 | */ | |
| 17 | package org.kuali.rice.kew.messaging; | |
| 18 | ||
| 19 | import java.util.ArrayList; | |
| 20 | import java.util.List; | |
| 21 | ||
| 22 | ||
| 23 | /** | |
| 24 | * A simple utility class which can handle translated a comma-seperated String | |
| 25 | * into an array of String paramters and vice-versa. | |
| 26 | * | |
| 27 | * @author Kuali Rice Team (rice.collab@kuali.org) | |
| 28 | */ | |
| 29 | public class ParameterTranslator { | |
| 30 | ||
| 31 | private static final String SLASH_REGEXP = "\\\\"; | |
| 32 | private static final String SLASH_ESCAPE = "\\\\"; | |
| 33 | private static final String COMMA_REGEXP = ","; | |
| 34 | private static final String COMMA_ESCAPE = "\\,"; | |
| 35 | ||
| 36 | 0 | private String untranslatedString = ""; |
| 37 | ||
| 38 | 0 | public ParameterTranslator() {} |
| 39 | ||
| 40 | 0 | public ParameterTranslator(String untranslatedString) { |
| 41 | 0 | this.untranslatedString = untranslatedString; |
| 42 | 0 | } |
| 43 | ||
| 44 | public void addParameter(String value) { | |
| 45 | 0 | if (!org.apache.commons.lang.StringUtils.isEmpty(untranslatedString)) { |
| 46 | 0 | untranslatedString += ","; |
| 47 | } | |
| 48 | 0 | untranslatedString += escape(value); |
| 49 | 0 | } |
| 50 | ||
| 51 | private String escape(String value) { | |
| 52 | 0 | if (org.apache.commons.lang.StringUtils.isEmpty(value)) { |
| 53 | 0 | return ""; |
| 54 | } | |
| 55 | // escape '\' and ',' with "\\" and "\," | |
| 56 | 0 | value = value.replaceAll(SLASH_REGEXP, SLASH_ESCAPE); |
| 57 | 0 | value = value.replaceAll(COMMA_REGEXP, COMMA_ESCAPE); |
| 58 | 0 | return value; |
| 59 | } | |
| 60 | ||
| 61 | public String getUntranslatedString() { | |
| 62 | 0 | return untranslatedString; |
| 63 | } | |
| 64 | ||
| 65 | public String[] getParameters() { | |
| 66 | 0 | List strings = new ArrayList(); |
| 67 | 0 | boolean isEscaped = false; |
| 68 | 0 | StringBuffer buffer = null; |
| 69 | 0 | for (int index = 0; index < untranslatedString.length(); index++) { |
| 70 | 0 | char character = untranslatedString.charAt(index); |
| 71 | 0 | if (isEscaped) { |
| 72 | 0 | isEscaped = false; |
| 73 | 0 | if (buffer == null) { |
| 74 | 0 | buffer = new StringBuffer(); |
| 75 | } | |
| 76 | 0 | buffer.append(character); |
| 77 | } else { | |
| 78 | 0 | if (character == '\\') { |
| 79 | 0 | isEscaped = true; |
| 80 | 0 | } else if (character == ',') { |
| 81 | 0 | strings.add(buffer.toString()); |
| 82 | 0 | buffer = null; |
| 83 | } else { | |
| 84 | 0 | if (buffer == null) { |
| 85 | 0 | buffer = new StringBuffer(); |
| 86 | } | |
| 87 | 0 | buffer.append(character); |
| 88 | } | |
| 89 | } | |
| 90 | } | |
| 91 | // put whatever is left in the buffer (after the last ',') into the list of strings | |
| 92 | 0 | if (buffer != null) { |
| 93 | 0 | strings.add(buffer.toString()); |
| 94 | } | |
| 95 | 0 | return (String[])strings.toArray(new String[0]); |
| 96 | } | |
| 97 | ||
| 98 | } |