And Todays’s Quote Would Be..

Life begins at the end of your comfort zone.

Neale Donald Walsch

Regular Expression to Check Indonesian MobilePhone Provider

These are simple regex to check Indonesia’s Mobile phone provider based on its number,

telkomsel.regex = ^(\\+62|\\+0|0|62)8(1[123]|52|53|21|22|23)[0-9]{5,9}$

simpati.regex = ^(\\+62|\\+0|0|62)8(1[123]|2[12])[0-9]{5,9}$

as.regex = ^(\\+62|\\+0|0|62)8(52|53|23)[0-9]{5,9}$

indosat.regex= ^(\\+62815|0815|62815|\\+0815|\\+62816|0816|62816|\\+0816|\\+62858|0858|62858|\\+0814|\\+62814|0814|62814|\\+0814)[0-9]{5,9}$

im3.regex = ^(\\+62855|0855|62855|\\+0855|\\+62856|0856|62856|\\+0856|\\+62857|0857|62857|\\+0857)[0-9]{5,9}$

xl.regex = ^(\\+62817|0817|62817|\\+0817|\\+62818|0818|62818|\\+0818|\\+62819|0819|62819|\\+0819|\\+62859|0859|62859|\\+0859|\\+0878|\\+62878|0878|62878|\\+0877|\\+62877|0877|62877)[0-9]{5,9}$

Hope it can help others, ;-)


Using HashMaps as MyBatis’ Parameter and Return Values

Usually im using javabean as both parameter and return values for MyBatis. But actually, MyBatis also able to use HashMaps as both parameter and return values. Here is the example,

First is a simple pom file to load all the libraries needed,

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="" xmlns:xsi="" xsi:schemaLocation="">

And my configuration.xml file, to hold my MyBatis’ configuration

<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE configuration
PUBLIC "-// Config 3.0//EN"
    <environments default="development">
        <environment id="development">
            <transactionManager type="JDBC"/>
            <dataSource type="UNPOOLED">
                <property name="driver" value="com.mysql.jdbc.Driver"/>
                <property name="url" value="jdbc:mysql://localhost/test"/>
                <property name="username" value="root"/>
                <property name="password" value="password"/>
        <mapper resource="com/edw/mybatisselectmap/sqlmap/SelectMapper.xml" />

An xml file, to hold all my queries, i named it SelectMapper.xml.
Please note the difference between using #{} and ${}. Hashtags sign means a prepared statement variables, while dollar sign means a simple string replace.

<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE mapper PUBLIC "-// Mapper 3.0//EN" "" >
<mapper namespace="com.edw.mybatisselectmap.mapper.SelectMapper" >    
    <select resultType="java.util.Map"  parameterType="java.util.Map" id="select" >
                name LIKE #{myname}
        ORDER BY ${orderBy} 

A simple java file to map my xml queries,

package com.edw.mybatisselectmap.mapper;

import java.util.HashMap;
import java.util.List;

public interface SelectMapper {
    List<HashMap<Object, Object>> select(HashMap<Object, Object> hashMap);

and my java configuration file, to load all my MyBatis’ configurations

package com.edw.mybatisselectmap.config;

import org.apache.ibatis.session.SqlSessionFactory;
import org.apache.ibatis.session.SqlSessionFactoryBuilder;

public class MyBatisSqlSessionFactory {

    private static final SqlSessionFactory FACTORY;

    static {
        try {
            Reader reader = Resources.getResourceAsReader("com/edw/mybatisselectmap/sqlmap/Configuration.xml");
            FACTORY = new SqlSessionFactoryBuilder().build(reader);
        } catch (IOException e) {
            throw new RuntimeException("Fatal Error. Cause: " + e, e);

    public static SqlSessionFactory getSqlSessionFactory() {
        return FACTORY;

And finally my main java file,

package com.edw.mybatisselectmap;

import com.edw.mybatisselectmap.config.MyBatisSqlSessionFactory;
import com.edw.mybatisselectmap.mapper.SelectMapper;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import org.apache.ibatis.session.SqlSession;
import org.apache.log4j.Logger;

public class Main {

    private static Logger logger = Logger.getLogger(Main.class);

    public static void main(String[] args) {
        SqlSession sqlSession = null;
        try {
            HashMap<Object, Object> hashMapParameter = new HashMap<Object, Object>();
            hashMapParameter.put("orderBy", "id");
            hashMapParameter.put("myname", "%edw%");
            sqlSession = MyBatisSqlSessionFactory.getSqlSessionFactory().openSession(true);
            SelectMapper mapper = sqlSession.getMapper(SelectMapper.class);
            List<HashMap<Object, Object>> hashMapResults =;
            for (HashMap<Object, Object> hashMapResult : hashMapResults) {
        } catch (Exception e) {
            logger.error(e, e);
        } finally {
            if (sqlSession != null) {

You can find this post’s sourcecode at my github page here,


A Simple Indonesian Geographic Coordinate Conversion Between Degrees to Degree-Minute-Second (DMS)

Recently i have a simple GIS project which force me to display an Indonesian DMS coordinate format, instead of the usual decimal format. This is a simple utility class i used to do convertion.

import java.text.DecimalFormat;

public class DegreeConverterTest {

    public static final String LONGITUDE = "longitude";
    public static final String LATITUDE = "latitude";

    public DegreeConverterTest(String testName) {

    public static void main(String a[]) {
        System.out.println(degree2DMS(-8.857, LATITUDE));
        System.out.println(degree2DMS(10.645, LATITUDE));
        System.out.println(degree2DMS(135.696, LONGITUDE));

    public static String degree2DMS(double coordinate, String mode) {
        String dms = "";

        char degree = '\u00B0';
        int degLong, minLongA;
        double minLong, secLong;
        DecimalFormat df = new DecimalFormat("#,###,####0.0000");

        if (LONGITUDE.equals(mode)) {
            // minus is BB (Bujur Barat or west longitude)
            // plus is BT (Bujur Timur of east longitude)
            degLong = (int) coordinate;
            minLong = (coordinate % 1) * 60;
            minLongA = (int) minLong;
            secLong = (minLong % 1) * 60;
            String secLongAs = String.valueOf(df.format(secLong));
            dms = degLong + degree + " " + minLongA + "' " + secLongAs + "\" BT";
        } else if (LATITUDE.equals(mode)) {
            // minus is LS (Lintang Selatan or south latitude)
            // plus is LU (Lintang Utara or north latitude)
            boolean isMinus = true;
            String minusDegree = "LS";
            degLong = (int) coordinate;
            String degLongS = String.valueOf(degLong);
            if (degLongS.contains("-")) {
                degLongS = degLongS.replace("-", "");
            } else {
                isMinus = false;
                minusDegree = "LU";

            minLong = (coordinate % 1) * 60;
            minLongA = (int) minLong;
            String minLongAs = String.valueOf(minLongA);
            if (isMinus) {
                minLongAs = minLongAs.replace("-", "");

            secLong = (minLong % 1) * 60;
            String secLongAs = String.valueOf(df.format(secLong));
            if (isMinus) {
                secLongAs = secLongAs.replace("-", "");

            dms = degLongS + degree + " " + minLongAs + "' " + secLongAs + "\" " + minusDegree;
        return dms;

And this is the output i got on my netbeans’ console

8° 51' 25.2000" LS
10° 38' 42.0000" LU
311 41' 45.6000" BT

How To Simulate An Image Attachment HTTP Multipart POST

Below is the code i use for simulating an image attachment using apache http client.

package com.edw.postsimulator;

import java.nio.charset.Charset;
import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.client.HttpClient;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.entity.mime.HttpMultipartMode;
import org.apache.http.entity.mime.MultipartEntity;
import org.apache.http.entity.mime.content.FileBody;
import org.apache.http.entity.mime.content.StringBody;
import org.apache.http.impl.client.DefaultHttpClient;
import org.apache.http.protocol.BasicHttpContext;
import org.apache.http.protocol.HttpContext;
import org.apache.http.util.EntityUtils;

public class PostTest {

    private static String url = "http://localhost:8083/RealsAppApi/images/add";

    public static void main(String[] args) throws Exception {
        HttpClient httpclient = new DefaultHttpClient();
        HttpPost httpPost = new HttpPost(url);
        HttpContext localContext = new BasicHttpContext();
        Charset chars = Charset.forName("UTF-8");
        // http content
        MultipartEntity entity = new MultipartEntity(HttpMultipartMode.BROWSER_COMPATIBLE);
        entity.addPart("username", new StringBody("edwin", chars));
        entity.addPart("password", new StringBody("edwinpassword", chars));        
        // attach image
        File fileToUpload = new File("F:\\no.jpg");
        FileBody fileBody = new FileBody(fileToUpload, "application/octet-stream");
        entity.addPart("image", fileBody);

        // fire and log the responses
        HttpResponse response = httpclient.execute(httpPost, localContext); 
        HttpEntity resEntity = response.getEntity();

These are the libraries i used for this project,
post simulator

Hope it would help others, have fun (Y)


Daftar Kode Provinsi, Kecamatan, Kabupaten dan Desa di Indonesia Menurut Kode BPS

Kali ini gw kembali menulis tentang GIS, berawal dari masalah yang gw temui di project terbaru gw terkait geospasial Indonesia. Disana gw kesulitan untuk mendapatkan kode dan nama wilayah di Indonesia secara sistematis, akhirnya gw bikin versi sql-nya. Semoga data gw bisa bermanfaat bagi seluruh penggiat spasial Indonesia (Y)

SQL File-nya bisa diunduh —> disini

database kabupaten sql

database kabupaten sql