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 */ 017package org.apache.camel.converter; 018 019import java.util.regex.Matcher; 020import java.util.regex.Pattern; 021 022import org.apache.camel.Converter; 023import org.slf4j.Logger; 024import org.slf4j.LoggerFactory; 025 026/** 027 * Converter from String syntax to milli seconds. 028 * Code is copied to org.apache.camel.catalog.TimePatternConverter in camel-catalog 029 */ 030@Converter 031public final class TimePatternConverter { 032 private static final Logger LOG = LoggerFactory.getLogger(TimePatternConverter.class); 033 private static final String NUMBERS_ONLY_STRING_PATTERN = "^[-]?(\\d)+$"; 034 private static final String HOUR_REGEX_PATTERN = "((\\d)*(\\d))h(our(s)?)?"; 035 private static final String MINUTES_REGEX_PATTERN = "((\\d)*(\\d))m(in(ute(s)?)?)?"; 036 private static final String SECONDS_REGEX_PATTERN = "((\\d)*(\\d))s(ec(ond)?(s)?)?"; 037 038 /** 039 * Utility classes should not have a public constructor. 040 */ 041 private TimePatternConverter() { 042 } 043 044 @Converter 045 public static long toMilliSeconds(String source) throws IllegalArgumentException { 046 long milliseconds = 0; 047 boolean foundFlag = false; 048 049 checkCorrectnessOfPattern(source); 050 Matcher matcher; 051 052 matcher = createMatcher(NUMBERS_ONLY_STRING_PATTERN, source); 053 if (matcher.find()) { 054 // Note: This will also be used for regular numeric strings. 055 // This String -> long converter will be used for all strings. 056 milliseconds = Long.valueOf(source); 057 } else { 058 matcher = createMatcher(HOUR_REGEX_PATTERN, source); 059 if (matcher.find()) { 060 milliseconds = milliseconds + (3600000 * Long.valueOf(matcher.group(1))); 061 foundFlag = true; 062 } 063 064 matcher = createMatcher(MINUTES_REGEX_PATTERN, source); 065 if (matcher.find()) { 066 long minutes = Long.valueOf(matcher.group(1)); 067 if ((minutes > 59) && foundFlag) { 068 throw new IllegalArgumentException("Minutes should contain a valid value between 0 and 59: " + source); 069 } 070 foundFlag = true; 071 milliseconds = milliseconds + (60000 * minutes); 072 } 073 074 matcher = createMatcher(SECONDS_REGEX_PATTERN, source); 075 if (matcher.find()) { 076 long seconds = Long.valueOf(matcher.group(1)); 077 if ((seconds > 59) && foundFlag) { 078 throw new IllegalArgumentException("Seconds should contain a valid value between 0 and 59: " + source); 079 } 080 foundFlag = true; 081 milliseconds = milliseconds + (1000 * seconds); 082 } 083 084 // No pattern matched... initiating fallback check and conversion (if required). 085 // The source at this point may contain illegal values or special characters 086 if (!foundFlag) { 087 milliseconds = Long.valueOf(source); 088 } 089 } 090 091 LOG.trace("source: {} milliseconds: ", source, milliseconds); 092 093 return milliseconds; 094 } 095 096 private static void checkCorrectnessOfPattern(String source) { 097 //replace only numbers once 098 Matcher matcher = createMatcher(NUMBERS_ONLY_STRING_PATTERN, source); 099 String replaceSource = matcher.replaceFirst(""); 100 101 //replace hour string once 102 matcher = createMatcher(HOUR_REGEX_PATTERN, replaceSource); 103 if (matcher.find() && matcher.find()) { 104 throw new IllegalArgumentException("Hours should not be specified more then once: " + source); 105 } 106 replaceSource = matcher.replaceFirst(""); 107 108 //replace minutes once 109 matcher = createMatcher(MINUTES_REGEX_PATTERN, replaceSource); 110 if (matcher.find() && matcher.find()) { 111 throw new IllegalArgumentException("Minutes should not be specified more then once: " + source); 112 } 113 replaceSource = matcher.replaceFirst(""); 114 115 //replace seconds once 116 matcher = createMatcher(SECONDS_REGEX_PATTERN, replaceSource); 117 if (matcher.find() && matcher.find()) { 118 throw new IllegalArgumentException("Seconds should not be specified more then once: " + source); 119 } 120 replaceSource = matcher.replaceFirst(""); 121 122 if (replaceSource.length() > 0) { 123 throw new IllegalArgumentException("Illegal characters: " + source); 124 } 125 } 126 127 private static Matcher createMatcher(String regexPattern, String source) { 128 Pattern pattern = Pattern.compile(regexPattern, Pattern.CASE_INSENSITIVE); 129 return pattern.matcher(source); 130 } 131}