001 package org.apache.myfaces.tobago.convert; 002 003 /* 004 * Licensed to the Apache Software Foundation (ASF) under one or more 005 * contributor license agreements. See the NOTICE file distributed with 006 * this work for additional information regarding copyright ownership. 007 * The ASF licenses this file to You under the Apache License, Version 2.0 008 * (the "License"); you may not use this file except in compliance with 009 * the License. You may obtain a copy of the License at 010 * 011 * http://www.apache.org/licenses/LICENSE-2.0 012 * 013 * Unless required by applicable law or agreed to in writing, software 014 * distributed under the License is distributed on an "AS IS" BASIS, 015 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 016 * See the License for the specific language governing permissions and 017 * limitations under the License. 018 */ 019 020 import org.slf4j.Logger; 021 import org.slf4j.LoggerFactory; 022 import org.apache.myfaces.tobago.component.Attributes; 023 024 import javax.faces.component.UIComponent; 025 import javax.faces.context.FacesContext; 026 import javax.faces.convert.Converter; 027 import javax.faces.convert.ConverterException; 028 import java.text.DecimalFormat; 029 import java.text.NumberFormat; 030 import java.util.ArrayList; 031 import java.util.List; 032 import java.util.StringTokenizer; 033 034 @org.apache.myfaces.tobago.apt.annotation.Converter(id = DurationConverter.CONVERTER_ID) 035 public class DurationConverter implements Converter { 036 037 private static final Logger LOG = LoggerFactory.getLogger(DurationConverter.class); 038 039 public static final String CONVERTER_ID = "org.apache.myfaces.tobago.Duration"; 040 041 private static final String NANO = "nano"; 042 private static final String MILLI = "milli"; 043 private static final String SECOND = "second"; 044 private static final String MINUTE = "minute"; 045 private static final String HOUR = "hour"; 046 private static final String DAY = "day"; 047 private static final String YEAR = "year"; 048 049 public String getAsString( 050 FacesContext facesContext, UIComponent component, Object object) 051 throws ConverterException { 052 if (object == null || object instanceof String) { 053 return (String) object; 054 } 055 double aDouble = ((Number) object).doubleValue(); 056 boolean negative = false; 057 if (aDouble < 0) { 058 negative = true; 059 aDouble = -aDouble; 060 } 061 double factor = getUnitFactor(component); 062 aDouble = aDouble * factor; 063 064 NumberFormat format = new DecimalFormat("00"); 065 long value = Double.valueOf(aDouble).longValue(); 066 int seconds = (int) (value % 60); 067 value = value / 60; 068 int minutes = (int) (value % 60); 069 value = value / 60; 070 String string; 071 if (value > 0) { 072 string = (negative ? "-" : "") + value + ":" 073 + format.format(minutes) + ":" 074 + format.format(seconds); 075 } else { 076 string = (negative ? "-" : "") + minutes + ":" 077 + format.format(seconds); 078 } 079 if (LOG.isDebugEnabled()) { 080 LOG.debug("string = '{}'", string); 081 } 082 return string; 083 } 084 085 public Object getAsObject( 086 FacesContext facesContext, UIComponent component, String string) 087 throws ConverterException { 088 boolean negative = string.indexOf('-') > -1; 089 StringTokenizer tokenizer = new StringTokenizer(string, " :-"); 090 List elements = new ArrayList(); 091 while (tokenizer.hasMoreElements()) { 092 elements.add(tokenizer.nextElement()); 093 } 094 int hours = 0; 095 int minutes; 096 int seconds; 097 switch (elements.size()) { 098 case 3: 099 hours = Integer.parseInt((String) elements.get(0)); 100 minutes = Integer.parseInt((String) elements.get(1)); 101 seconds = Integer.parseInt((String) elements.get(2)); 102 break; 103 case 2: 104 minutes = Integer.parseInt((String) elements.get(0)); 105 seconds = Integer.parseInt((String) elements.get(1)); 106 break; 107 default: 108 throw new ConverterException("Cannot parse string='" + string + "'"); 109 } 110 double factor = getUnitFactor(component); 111 long value = (long) (((hours * 60L + minutes) * 60L + seconds) / factor); 112 if (negative) { 113 return Long.valueOf(-value); 114 } else { 115 return Long.valueOf(value); 116 } 117 } 118 119 private static double getUnitFactor(UIComponent component) { 120 String unit = null; 121 if (component != null) { 122 unit = (String) component.getAttributes().get(Attributes.UNIT); 123 } 124 double factor; 125 if (unit == null) { 126 factor = 0.001; 127 } else if (NANO.equals(unit)) { 128 factor = 0.000000001; 129 } else if (MILLI.equals(unit)) { 130 factor = 0.001; 131 } else if (SECOND.equals(unit)) { 132 factor = 1.0; 133 } else if (MINUTE.equals(unit)) { 134 factor = 60.0; 135 } else if (HOUR.equals(unit)) { 136 factor = 3600.0; 137 } else if (DAY.equals(unit)) { 138 factor = 86400.0; 139 } else if (YEAR.equals(unit)) { 140 factor = 31556736.0; 141 } else { 142 LOG.warn("Unsupported unit: '" + unit + "'"); 143 factor = 0.001; 144 } 145 return factor; 146 } 147 148 }