matrix.groovy

matrix.groovy

List<Record> recordList = new ArrayList<Record>()
recordList.add(new Record().build("A1","B1","C1"))
recordList.add(new Record().build("A2","B2","C2"))
recordList.add(new Record().build("A3","B3","C3"))

recordNames = ["factorA","factorB","factorC"]

List<Column> columnList = new ArrayList<Column>()


recordNames.each{ columnName ->
    Column col = new Column()
    col.name = columnName
    recordList.each{ col.add(it."$columnName") }    
    columnList.add(col)
}

for(int i = 0; i <= columnList.size()-1; i++){
    if(i > 0){
        columnList.get(i-1).column = columnList.get(i)
    }
}

firstColumn = columnList.get(0)

resultList = firstColumn.createMatrix(new ArrayList<Record>())

resultList.each{ println it.factorA + ":" + it.factorB + ":" + it.factorC + '\n'}



class Column{
    private String name
    private Column column
    private List<String> list = new ArrayList<String>()
    
    def add(String name){
        if(name != null && !"".equals(name))
            this.list.add(name)
    }
    
    def createMatrix(List<Record> recordList){
        List<Record> result = new ArrayList<Record>()
        
        if(recordList.size() == 0){
            list.each{
                def newRecord = new Record()
                newRecord."$name" = it
                result.add(newRecord)
            }
        } else {
            recordList.each{ record ->
                list.each{
                    def newRecord = new Record().clone(record)
                    newRecord."$name" = it
                    result.add(newRecord)
                }
            }
        }
        
        if(column != null){
            return this.column.createMatrix(result)
        }else{
            return result
        }
    }
}

class Record{
        private String factorA
        private String factorB
        private String factorC

        def build(String A, String B,String C){
                this.factorA = A
                this.factorB = B
                this.factorC = C
                return this
        }
        
        def clone(Record record){
            def recordNames = ["factorA","factorB","factorC"]
            recordNames.each{
                this."$it" = record."$it"
            }
            return this
        }
}