telosys-tools-bricks / telosys-tools-generator

Telosys generator based on Velocity template engine
https://www.telosys.org/
GNU Lesser General Public License v3.0
18 stars 14 forks source link

Browse a directory in Velocity #7

Open adminlazcool opened 5 years ago

adminlazcool commented 5 years ago

Hello, I am trying to write templates in VTL to generate java classes with telosys. My starting point is a directory (src/main/resources/templates/es) that contains json files (mapping1.json, mapping2.json). I have to generate several java classes per json files. I have already write a template for each java classe that i have to generate. But these templates work with a static embedded json object. This an example:

`

set($json = {

"template":"acces_formation", "mappings":{
"data":{
"properties":{
"MATRICULE":{
"type":"string", "index":"not_analyzed" }, "NOM":{
"type":"string", "index":"not_analyzed" }, "DATE_NAIS":{
"type":"date", "format":"dd/MM/yyyy" }, "SEXE":{
"type":"string", "index":"not_analyzed" }, "GRADE":{
"type":"string", "index":"not_analyzed" } } } } })

macro(javaName $s)$s.substring(0,1).toUpperCase()$s.substring(1)#end

macro(setter $s)set#javaName($s)#end

macro(getter $s)get#javaName($s)#end

########################################start macro toCamelCase

macro(toCamelCase $s)

set($datas = $s.split("_"))

set($name = "")

foreach($data in $datas)

set($data = $data.substring(0,1).toUpperCase()+$data.substring(1))

set($name = $name+$data)

end

$name##

end

#######################################End macro toCamelCase #######################################Start macro #tab

macro(tab $nbreTotal)

if($nbreTotal >= 1)

foreach($nbre in [1..$nbreTotal])

##

end

end

end

#######################################End macro #tab #######################################Start macro javaType

macro(javaType $f, $nbreTab)

if($f.equals("string"))

tab($nbreTab)String

elseif($f.equals("boolean"))

tab($nbreTab)Boolean

elseif($f.equals("long"))

tab($nbreTab)Long

elseif($f.equals("float"))

tab($nbreTab)Float

elseif($f.equals("double"))

tab($nbreTab)Double

elseif($f.equals("int"))

tab($nbreTab)Integer

elseif($f.equals("integer"))

tab($nbreTab)Integer

elseif($f.equals("date"))

tab($nbreTab)String

elseif($f.equals("array"))

tab($nbreTab)java.util.List<#javaType($f)>

else

tab($nbreTab)$f

end

end

#############################################End macro javaType #############################################

set($templateName = $json.template)

set($entity = "#toCamelCase($json.template)")

set($entityDto = $entity+"Dto")

set($param = "_param")

/*

package ${target.javaPackageFromFolder(${SRC})};

import java.util.Date; import ${ROOT_PKG}.helper.contract.SearchParam; import com.fasterxml.jackson.annotation.JsonInclude; import com.fasterxml.jackson.annotation.JsonPropertyOrder; import com.fasterxml.jackson.databind.PropertyNamingStrategy; import com.fasterxml.jackson.databind.annotation.JsonNaming; import lombok.Getter; import lombok.NoArgsConstructor; import lombok.Setter; import lombok.ToString;

/**

public class $entityDto implements Cloneable {

set($properties = $json.mappings.data.properties)

private String#tab(3)_id;

foreach($key in $properties.keySet())

set($field = $key.toLowerCase())

tab(1)private #javaType($properties.get($key).type,0)#tab(3)$field ;

end

private SearchParam<String>#tab(3)_id$param;

foreach($key in $properties.keySet())

set($field = $key.toLowerCase())

tab(1)private SearchParam<#javaType($properties.get($key).type,0)>#tab(3)${field}$param;

end

private String orderDirection;
private String orderField;

} ` What i need now is to browse my json directory, get each json file and apply the template on that json to create a java classe. Thank you for helping me please !

l-gu commented 5 years ago

If you want to browse a directory you'll have to create a specific Java class to do that. A Java class can be used in a template with "$loader". See "$loader" doc here : http://www.telosys.org/templates-doc/objects/loader.html

adminlazcool commented 5 years ago

Hi, OK. I can browse the directory. I used apache-commons-io.jar. Now i have to generate the java classes per each json file. But I'm having problems. Please see my comment and help me here: https://stackoverflow.com/questions/55377622/browse-a-directory-in-velocity-template-language-with-telosys#comment98042139_55436632