会計年情報の取得

FiscalInfoHolder.groovy

class FiscalInfoHolder { 
    def month
    def date
    def cal = Calendar.getInstance()

    // 会計年月度の取得    
    def getFiscalYearMonth = {
      cal.setTime(it)
      if (cal.get(Calendar.DATE) > date) { cal.add(Calendar.MONTH, 1) }
      cal.getTime()
    }
    
    // 会計年度の取得
    def getFiscalYear = {
        cal.setTime(getFiscalYearMonth(it))
        if (cal.get(Calendar.MONTH) < month) { cal.add(Calendar.YEAR, -1) }
        cal.get(Calendar.YEAR)
    }
    
    // 会計月度の取得    
    def getFiscalMonth = {
      cal.setTime(getFiscalYearMonth(it))
      cal.get(Calendar.MONTH)
    }

}

// テスト用メソッド
def toDate = { Date.parse('yyyy/MM/dd', it) }
Date.metaClass.toString = { delegate.format('yyyy/MM') }
String.metaClass.testFiscalYearMonth = { "$delegate -> ${it.getFiscalYearMonth(toDate(delegate)).toString()}" }
String.metaClass.testFiscalYear      = { "$delegate -> ${it.getFiscalYear(toDate(delegate))}" }
String.metaClass.testFiscalMonth     = { "$delegate -> ${it.getFiscalMonth(toDate(delegate))}" }

// テスト
holder = new FiscalInfoHolder(month:3, date:20)
println "■ 決算日： $holder.month/$holder.date"
println '会計年月度'
println '2011/06/20'.testFiscalYearMonth(holder)
println '2011/06/21'.testFiscalYearMonth(holder)
println '会計年度'
println '2011/03/20'.testFiscalYear(holder)
println '2011/03/21'.testFiscalYear(holder)
println '会計月度'
println '2011/06/20'.testFiscalMonth(holder)
println '2011/06/21'.testFiscalMonth(holder)