Examples >

Validate Records using Fields and Rules

/*
 * Copyright (c) 2006-2020 North Concepts Inc.  All rights reserved.
 * Proprietary and Confidential.  Use is subject to license terms.
 * 
 * https://northconcepts.com/data-pipeline/licensing/
 */
package com.northconcepts.datapipeline.foundations.examples.schema;

import com.northconcepts.datapipeline.core.FieldType;
import com.northconcepts.datapipeline.core.Record;
import com.northconcepts.datapipeline.filter.FilterExpression;
import com.northconcepts.datapipeline.foundations.schema.EntityDef;
import com.northconcepts.datapipeline.foundations.schema.NumericFieldDef;
import com.northconcepts.datapipeline.foundations.schema.TextFieldDef;

public class ValidateRecordsUsingFieldsAndRules {

    public static void main(String[] args) {
        EntityDef entityDef = new EntityDef()
                .addField(new TextFieldDef("name", FieldType.STRING).setRequired(false).setAllowBlank(false).setMaximumLength(100))
                .addField(new TextFieldDef("email", FieldType.STRING).setRequired(true).setAllowBlank(false).setMaximumLength(255))
                .addField(new NumericFieldDef("age", FieldType.INT).setRequired(true).setMinimum(25).setMaximum(75))
                .addValidation(new FilterExpression("!contains(email, '@example.com') && year(now()) >= 2019"));
        
        
        System.out.println(entityDef.validateRecord(new Record()
                .setField("age", 75)
                .setField("email", "henry@northpole.com")
                .setField("level", "A1")));
        
        //    "valid" : true
        
        System.out.println("------------------------------------");
        
        entityDef.setAllowExtraFieldsInValidation(false);
        
        System.out.println(entityDef.validateRecord(new Record()
                .setField("age", 75)
                .setField("email", "henry@northpole.com")
                .setField("level", "A1")));
        
        //    "valid" : false
        //    "message" : "Record is missing field(s) [name] and has unexpected field(s) [level]"

        System.out.println("------------------------------------");
        
        System.out.println(entityDef.validateRecord(new Record()
                .setField("name", "")
                .setField("age", 76)
                .setField("email", "jsmith@example.com")));

        //    "valid" : false
        //    "message" : "name is blank; expected at least 1 character(s)"
        //     "message" : "age is too large; expected maximum 75, found 76"
        //     "message" : "Record failed validation rule, expected: record satisfies expression: !contains(email, '@example.com') && year(now()) >= 2019"
        
    }

}
Mobile Analytics