001 /**
002 * Licensed to the Apache Software Foundation (ASF) under one or more
003 * contributor license agreements. See the NOTICE file distributed with
004 * this work for additional information regarding copyright ownership.
005 * The ASF licenses this file to You under the Apache License, Version 2.0
006 * (the "License"); you may not use this file except in compliance with
007 * the License. You may obtain a copy of the License at
008 *
009 * http://www.apache.org/licenses/LICENSE-2.0
010 *
011 * Unless required by applicable law or agreed to in writing, software
012 * distributed under the License is distributed on an "AS IS" BASIS,
013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
014 * See the License for the specific language governing permissions and
015 * limitations under the License.
016 */
017 package org.apache.camel.language.tokenizer;
018
019 import org.apache.camel.Expression;
020 import org.apache.camel.IsSingleton;
021 import org.apache.camel.Predicate;
022 import org.apache.camel.builder.ExpressionBuilder;
023 import org.apache.camel.builder.PredicateBuilder;
024 import org.apache.camel.spi.Language;
025 import org.apache.camel.util.ObjectHelper;
026
027 /**
028 * A language for tokenizer expressions.
029 */
030 public class TokenizeLanguage implements Language, IsSingleton {
031
032 private String token;
033 private String headerName;
034 private boolean regex;
035
036 public static Expression tokenize(String token) {
037 return tokenize(token, false);
038 }
039
040 public static Expression tokenize(String token, boolean regex) {
041 TokenizeLanguage langugage = new TokenizeLanguage();
042 langugage.setToken(token);
043 langugage.setRegex(regex);
044 return langugage.createExpression(null);
045 }
046
047 public static Expression tokenize(String headerName, String token) {
048 return tokenize(headerName, token, false);
049 }
050
051 public static Expression tokenize(String headerName, String token, boolean regex) {
052 TokenizeLanguage langugage = new TokenizeLanguage();
053 langugage.setHeaderName(headerName);
054 langugage.setToken(token);
055 langugage.setRegex(regex);
056 return langugage.createExpression(null);
057 }
058
059 public Predicate createPredicate(String expression) {
060 return PredicateBuilder.toPredicate(createExpression(expression));
061 }
062
063 /**
064 * Creates a tokenize expression.
065 */
066 public Expression createExpression() {
067 ObjectHelper.notNull(token, "token");
068 Expression exp = headerName == null ? ExpressionBuilder.bodyExpression() : ExpressionBuilder.headerExpression(headerName);
069 if (regex) {
070 return ExpressionBuilder.regexTokenizeExpression(exp, token);
071 } else {
072 return ExpressionBuilder.tokenizeExpression(exp, token);
073 }
074 }
075
076 public Expression createExpression(String expression) {
077 if (ObjectHelper.isNotEmpty(expression)) {
078 this.token = expression;
079 }
080 return createExpression();
081 }
082
083 public String getToken() {
084 return token;
085 }
086
087 public void setToken(String token) {
088 this.token = token;
089 }
090
091 public String getHeaderName() {
092 return headerName;
093 }
094
095 public void setHeaderName(String headerName) {
096 this.headerName = headerName;
097 }
098
099 public boolean isRegex() {
100 return regex;
101 }
102
103 public void setRegex(boolean regex) {
104 this.regex = regex;
105 }
106
107 public boolean isSingleton() {
108 return false;
109 }
110 }