วิธีการพัฒนา JDBC Form Store Binder

[{
    title : '@@form.jdbcStoreBinder.config@@',
    properties : [{
        name : 'jdbcDatasource',
        label : '@@form.jdbcStoreBinder.datasource@@',
        type : 'selectbox',
        options : [{
            value : 'custom',
            label : '@@form.jdbcStoreBinder.customDatasource@@'
        },{
            value : 'default',
            label : '@@form.jdbcStoreBinder.defaultDatasource@@'
        }],
        value : 'default'
    },{
        name : 'jdbcDriver',
        label : '@@form.jdbcStoreBinder.driver@@',
        description : '@@form.jdbcStoreBinder.driver.desc@@',
        type : 'textfield',
        value : 'com.mysql.jdbc.Driver',
        control_field: 'jdbcDatasource',
        control_value: 'custom',
        control_use_regex: 'false',
        required : 'true'
    },{
        name : 'jdbcUrl',
        label : '@@form.jdbcStoreBinder.url@@',
        type : 'textfield',
        value : 'jdbc:mysql://localhost/jwdb?characterEncoding=UTF8',
        control_field: 'jdbcDatasource',
        control_value: 'custom',
        control_use_regex: 'false',
        required : 'true'
    },{
        name : 'jdbcUser',
        label : '@@form.jdbcStoreBinder.username@@',
        type : 'textfield',
        control_field: 'jdbcDatasource',
        control_value: 'custom',
        control_use_regex: 'false',
        value : 'root',
        required : 'true'
    },{
        name : 'jdbcPassword',
        label : '@@form.jdbcStoreBinder.password@@',
        type : 'password',
        control_field: 'jdbcDatasource',
        control_value: 'custom',
        control_use_regex: 'false',
        value : ''
    },{
        name : 'check_sql',
        label : '@@form.jdbcStoreBinder.check_sql@@',
        description : '@@form.jdbcStoreBinder.check_sql.desc@@',
        type : 'codeeditor',
        mode : 'sql',
        required : 'true'
    },{
        name : 'insert_sql',
        label : '@@form.jdbcStoreBinder.insert_sql@@',
        description : '@@form.jdbcStoreBinder.insert_sql.desc@@',
        type : 'codeeditor',
        mode : 'sql',
        required : 'true'
    },{
        name : 'update_sql',
        label : '@@form.jdbcStoreBinder.update_sql@@',
        description : '@@form.jdbcStoreBinder.update_sql.desc@@',
        type : 'codeeditor',
        mode : 'sql',
        required : 'true'
    },{
        name : 'delete_sql',
        label : '@@form.jdbcStoreBinder.delete_sql@@',
        description : '@@form.jdbcStoreBinder.delete_sql.desc@@',
        type : 'codeeditor',
        mode : 'sql',
        required : 'true'
    }],
    buttons : [{
        name : 'testConnection',    
        label : '@@form.jdbcStoreBinder.testConnection@@',
        ajax_url : '[CONTEXT_PATH]/web/json/app[APP_PATH]/plugin/org.joget.tutorial.JdbcStoreBinder/service?action=testConnection',
        fields : ['jdbcDriver', 'jdbcUrl', 'jdbcUser', 'jdbcPassword'],
        control_field: 'jdbcDatasource',
        control_value: 'custom',
        control_use_regex: 'false'
    }]
}]

    public FormRowSet store(Element element, FormRowSet rows, FormData formData) {
        Form parentForm = FormUtil.findRootForm(element);
        String primaryKeyValue = parentForm.getPrimaryKeyValue(formData);
            
        Connection con = null;
        PreparedStatement pstmt = null;
        ResultSet rs = null;
        
        try {
            DataSource ds = createDataSource();
            con = ds.getConnection();
            
            //check for deletion
            FormRowSet originalRowSet = formData.getLoadBinderData(element);
            if (originalRowSet != null && !originalRowSet.isEmpty()) {
                for (FormRow r : originalRowSet) {
                    if (!rows.contains(r)) {
                        String query = getPropertyString("delete_sql");    
                        pstmt = con.prepareStatement(getQuery(query));
                        int i = 1;
                        for (String obj : getParams(query, r, primaryKeyValue)) {
                            pstmt.setObject(i, obj);
                            i++;
                        }
                        pstmt.executeUpdate();
                    }
                }
            }
            
            if (!(rows == null || rows.isEmpty())) {
            
                //run query for each row
                for (FormRow row : rows) {
                    //check to use insert query or update query
                    String checkSql = getPropertyString("check_sql");
                    pstmt = con.prepareStatement(getQuery(checkSql));
                    int i = 1;
                    for (String obj : getParams(checkSql, row, primaryKeyValue)) {
                        pstmt.setObject(i, obj);
                        i++;
                    }
                    String query = getPropertyString("insert_sql");
                    rs = pstmt.executeQuery();
                    //record exist, use update query
                    if (rs.next()) {
                        query = getPropertyString("update_sql");
                    }
                    pstmt = con.prepareStatement(getQuery(query));
                    i = 1;
                    for (String obj : getParams(query, row, primaryKeyValue)) {
                        pstmt.setObject(i, obj);
                        i++;
                    }
                    pstmt.executeUpdate();
                }
            }
        } catch (Exception e) {
            LogUtil.error(getClassName(), e, "");
        } finally {
            try {
                if (rs != null) {
                    rs.close();
                }
                if (pstmt != null) {
                    pstmt.close();
                }
                if (con != null) {
                    con.close();
                }
            } catch (Exception e) {
                LogUtil.error(getClassName(), e, "");
            }
        }
        
        return rows;
    }
    
    /**
     * Used to replaces all syntax like {field_id} to question mark
     * @param query
     * @return 
     */
    protected String getQuery(String query) {
        return query.replaceAll("\\{[a-zA-Z0-9_]+\\}", "?");
    }
    
    /**
     * Used to retrieves the value of variables in query 
     * @param query
     * @param row
     * @return 
     */
    protected Collection<String> getParams(String query, FormRow row, String primaryKey) {
        Collection<String> params = new ArrayList<String>();
        
        Pattern pattern = Pattern.compile("\\{([a-zA-Z0-9_]+)\\}");
        Matcher matcher = pattern.matcher(query);
        
        while (matcher.find()) {
            String key = matcher.group(1);
            
            if (FormUtil.PROPERTY_ID.equals(key)) {
                String value = row.getId();
                if (value == null || value.isEmpty()) {
                    value = UuidGenerator.getInstance().getUuid();
                    row.setId(value);
                }
                params.add(value);
            } else if ("uuid".equals(key)) {
                params.add(UuidGenerator.getInstance().getUuid());
            } else if ("foreignKey".equals(key)) {
                params.add(primaryKey);
            } else {
                String value = row.getProperty(key);
                params.add((value != null)?value:"");
            }
        }
        
        return params;
    }
    
    /**
     * To creates data source based on setting
     * @return
     * @throws Exception 
     */
    protected DataSource createDataSource() throws Exception {
        DataSource ds = null;
        String datasource = getPropertyString("jdbcDatasource");
        if ("default".equals(datasource)) {
            // use current datasource
            ds = (DataSource)AppUtil.getApplicationContext().getBean("setupDataSource");
        } else {
            // use custom datasource
            Properties dsProps = new Properties();
            dsProps.put("driverClassName", getPropertyString("jdbcDriver"));
            dsProps.put("url", getPropertyString("jdbcUrl"));
            dsProps.put("username", getPropertyString("jdbcUser"));
            dsProps.put("password", getPropertyString("jdbcPassword"));
            ds = BasicDataSourceFactory.createDataSource(dsProps);
        }
        return ds;
    }

<!-- Change plugin specific dependencies here -->
<dependency>
    <groupId>javax.servlet</groupId>
    <artifactId>jsp-api</artifactId>
    <version>2.0</version>
</dependency>
<dependency>
    <groupId>commons-dbcp</groupId>
    <artifactId>commons-dbcp</artifactId>
    <version>1.3</version>
</dependency>
<!-- End change plugin specific dependencies here -->

org.joget.tutorial.JdbcStoreBinder.pluginLabel=JDBC Binder
org.joget.tutorial.JdbcStoreBinder.pluginDesc=Used to store form data using JDBC
form.jdbcStoreBinder.config=Configure JDBC Binder
form.jdbcStoreBinder.datasource=Datasource
form.jdbcStoreBinder.customDatasource=Custom Datasource
form.jdbcStoreBinder.defaultDatasource=Default Datasource
form.jdbcStoreBinder.driver=Custom JDBC Driver
form.jdbcStoreBinder.driver.desc=Eg. com.mysql.jdbc.Driver (MySQL), oracle.jdbc.driver.OracleDriver (Oracle), com.microsoft.sqlserver.jdbc.SQLServerDriver (Microsoft SQL Server)
form.jdbcStoreBinder.url=Custom JDBC URL
form.jdbcStoreBinder.username=Custom JDBC Username
form.jdbcStoreBinder.password=Custom JDBC Password
form.jdbcStoreBinder.check_sql=SQL SELECT Query
form.jdbcStoreBinder.check_sql.desc=Used  to decide an insert or update operation. Use syntax like {field_id} in query to inject submitted form data.
form.jdbcStoreBinder.insert_sql=SQL INSERT Query
form.jdbcStoreBinder.insert_sql.desc=Use syntax like {field_id} in query to inject submitted form data.
form.jdbcStoreBinder.update_sql=SQL UPDATE Query
form.jdbcStoreBinder.update_sql.desc=Use syntax like {field_id} in query to inject submitted form data.
form.jdbcStoreBinder.delete_sql=SQL DELETE Query
form.jdbcStoreBinder.delete_sql.desc=Used to delete deleted form data in Grid element. Use syntax like {id} in query to inject form data primary key.
form.jdbcStoreBinder.testConnection=Test Connection
form.jdbcStoreBinder.connectionOk=Database connected
form.jdbcStoreBinder.connectionFail=Not able to establish connection.

    public void start(BundleContext context) {
        registrationList = new ArrayList<ServiceRegistration>();
        //Register plugin here
        registrationList.add(context.registerService(JdbcStoreBinder.class.getName(), new JdbcStoreBinder(), null));
    } 

select username from dir_user where username = {id}

insert into dir_user
(id, username, firstName, lastName, email, active)
values
({id}, {id}, {firstName}, {lastName}, {email}, 1)

update dir_user set firstName = {firstName}, lastName = {lastName},
email = {email}
where username = {id}

delete from TABLE_NAME where id = {id}