Browse a directory in Velocity

[adminlazcool]

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")

/*

• Java dto for elasticSearch template $templateName
• Created on $today.date ( Time $today.time )
• Generator tool : $generator.name ( version $generator.version ) */

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;

/**

• DTO for elasticSearch template "$templateName"
• @author Lazare yao

*/ @JsonInclude(JsonInclude.Include.NON_NULL) @JsonPropertyOrder(alphabetic = true) @Getter @Setter @NoArgsConstructor @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]

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]

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