ExecClassクラスの改修
改修項目
- String型からDate型への変換を追加
- InvocationTargetExceptionの例外処理
package ews
import java.lang.reflect.{Field,InvocationTargetException,Method,Type}
import java.math.BigDecimal
import java.util.{Calendar,Date}
import java.text.SimpleDateFormat
import java.sql.{CallableStatement, PreparedStatement, ResultSet,Timestamp}
import javax.persistence.{Column,Entity,Id,Table,Lob,UniqueConstraint,SequenceGenerator}
import seedo.Util
/**
* The function is executed specifying the class.
*/
class ExecClass(className:String
) {
val myClass = Class.forName(className) // The class is gotten from the class name.
val Obj = myClass.newInstance.asInstanceOf[AnyRef] // create Object
val clazz:Class[_] = Obj.getClass // Class of Bean
/**
* It executes it specifying the type of the argument of the function.
*/
def execStr(methodName:String,value:String) : AnyRef = {
try { // The function with the Int in the argument is called.
val v = value.toInt
return exec(methodName,v)
} catch {
case e:Exception => {}
}
try { // The function with the Long in the argument is called.
val v = value.toLong
return exec(methodName,v)
} catch {
case e:Exception => {}
}
try { // The function with the Double in the argument is called.
val v = value.toDouble
return exec(methodName,v)
} catch {
case e:Exception => {}
}
val DATE_PATTERN = "yyyy/MM/dd"
val sdf = new SimpleDateFormat(DATE_PATTERN)
try {
val v = sdf.parse(value)
return exec(methodName,v)
} catch {
case e:Exception => {}
}
return exec(methodName,value)
}
/**
* The function with the argument is executed.
*/
def exec(methodName:String,value:Any) : AnyRef = {
if(value == null){
val method:Method = clazz.getMethod(methodName)
return method.invoke(Obj)
}
// The function is executed specifying the type of the argument of the function.
if(value.isInstanceOf[Int]){// The function with the Int in the argument is called.
val method = clazz.getMethod(methodName, classOf[Int])
val v = new Integer(value.asInstanceOf[Int])
try {
return method.invoke(Obj, v)
} catch {
case e:InvocationTargetException => {
throw new Exception(e.getCause)
}
}
} else if(value.isInstanceOf[Long]){// The function with the Long in the argument is called.
val method = clazz.getMethod(methodName, classOf[Long])
val v = new java.lang.Float(value.asInstanceOf[Long])
try {
return method.invoke(Obj, v)
} catch {
case e:InvocationTargetException => {
throw new Exception(e.getCause)
}
}
} else if(value.isInstanceOf[Float]){// The function with the Float in the argument is called.
val method = clazz.getMethod(methodName, classOf[Float])
val v = new java.lang.Float(value.asInstanceOf[Float])
try {
return method.invoke(Obj, v)
} catch {
case e:InvocationTargetException => {
throw new Exception(e.getCause)
}
}
} else if(value.isInstanceOf[Double]){// The function with the Double in the argument is called.
val method = clazz.getMethod(methodName, classOf[Double])
val v = new java.lang.Double(value.asInstanceOf[Double])
try {
return method.invoke(Obj, v)
} catch {
case e:InvocationTargetException => {
throw new Exception(e.getCause)
}
}
} else if(value.isInstanceOf[Char]){// The function with the Char in the argument is called.
val method = clazz.getMethod(methodName, classOf[Char])
val v = new Character(value.asInstanceOf[Char])
try {
return method.invoke(Obj, v)
} catch {
case e:InvocationTargetException => {
throw new Exception(e.getCause)
}
}
} else { // other class
var valClass:Class[_] = value.asInstanceOf[AnyRef].getClass
val method = clazz.getMethod(methodName, valClass)
try {
return method.invoke(Obj, value.asInstanceOf[AnyRef])
} catch {
case e:InvocationTargetException => {
throw new Exception(e.getCause)
}
}
}
}
/**
* The function is executed.
*/
def exec(methodName:String) : AnyRef ={
if(methodName == null)
return null
try {
val method:Method = clazz.getMethod(methodName)
return method.invoke(Obj)
} catch {
case e:InvocationTargetException => {
throw new Exception(e.getCause)
}
case e:Exception => {
throw new Exception(e)
}
}
}
}
改修したExecClassクラスをテストするためのHelloWorld3 クラス。
- 引数なしtb関数に置換元を格納するtag変数からspanタグを取り出し、HelloWorld文字列に追加
- 整数を引数に持つtb関数にパラメータの値を、HelloWorld文字列に追加
- Date型を引数に持つtb関数を追加
package ews
import java.util.{HashMap,Date}
import scala.collection.JavaConversions._
import scala.xml._
/**
* A class that's instantiated early and run. It allows the application
* to modify Seedo's environment
*/
class HelloWorld3 {
var tag:String = null // Replaced original tag
def setTag(tg:String): Unit = {tag = tg}
var parameterMap:HashMap[String,Array[String]] = null // Parameter from request of servlet
def setParameterMap(pm:HashMap[String,Array[String]]) : Unit = {parameterMap = pm}
// Function without argument
def tb : String = {
var xml : Node = null
var str : String = ""
if(tag != null){
xml = XML.loadString(tag)
val l = xml \\ "span"
l.foreach(v=> str += "" + v)
}
"HelloWorld " + new Date + str
}
def tb(no:Int) : String = {
var str : String = " parameterMap: "
if(parameterMap!=null){
println(parameterMap.size)
parameterMap.foreach(v => {
str += v._1 + "="
v._2.foreach(w =>
str += w + ","
)
})
}
"HelloWorld Int [" + no + "] " + new Date + str
}
def tb(no:Double) : String = {
"HelloWorld Double [" + no + "] " + new Date
}
def tb(no:Date) : String = {
"HelloWorld " + no.getClass + " [" + no + "] " + new Date
}
def tb(no:String) : String = {
"HelloWorld " + no.getClass + " [" + no + "] " + new Date
}
}
HTMLファイルは、helloworld3.html
<!doctype html> <HTML> <HEAD> <title>Home</title> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /> </HEAD> <BODY> <h2>Example3</h2> The current time is <div class="seedo:ews.HelloWorld3:tb"> <div>The current time is <span class="seedo:ews.HelloWorld3:tb:999999999">now</span>.</div> <div>The current time is <span class="seedo:ews.HelloWorld3:tb:こんばんわ">now</span>.</div> </div>. </BODY> </HTML>
結果
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