Config.java

package br.com.centralit.bpm.config;

import java.io.IOException;
import java.io.InputStream;
import java.util.Properties;

import br.com.centralit.citajax.util.CitAjaxUtil;
import br.com.citframework.util.Constantes;
import br.com.citframework.util.UtilTratamentoArquivos;

import com.google.gson.Gson;


public class Config {
	
	private static Properties props = null;
	private static final String fileName = "bpm.properties";
	private static final String designJson = "bpm_design.json";
	
	private static final String prefixoClasseDto = "br.com.centralit.bpm.dto.ElementoFluxo";
	private static final String prefixoClasseNegocio = "br.com.centralit.bpm.negocio.";
	
	public static InputStream inputStreamSettedInLoad = null;
	
	private static Design design = null;
	
	static{
		
		props = new Properties();
		ClassLoader load = Constantes.class.getClassLoader();

		InputStream is = load.getResourceAsStream(fileName);		
		if (is == null){
			is = ClassLoader.getSystemResourceAsStream(fileName);
		}
		if (is == null){
			is = ClassLoader.getSystemClassLoader().getResourceAsStream(fileName);
		}	
		
		//InputStream is = ClassLoader.getSystemResourceAsStream(fileName);
		try {
			if (is == null){
				is = inputStreamSettedInLoad;
			}
			if (is == null){
				throw new Exception("Arquivo de recursos nao encontrado: " + fileName);
			}
			props.load(is);
		} catch (IOException e) {
			e.printStackTrace();
		} catch (Exception e) {
			e.printStackTrace();
		}
		
	}
	
	private static Properties getProps() {
//		if (props == null){
//			InputStream is = inputStreamSettedInLoad;
//			if (is != null){
//				try {
//					props.load(is);
//				} catch (IOException e) {
//					e.printStackTrace();
//				}
//			}	
//			if (props == null){ //Se ainda continuar nulo.
//				return null;
//			}
//		}
		
		if(props == null){
			return null;
		}
		
		return props;
	}
	
	public static String getPropriedade(String chave) {
		return getProps().getProperty(chave);
	}
	
	public static String getClasseDtoElemento(String tipoElemento) {
		String result = getProps().getProperty("classe.dto.elemento."+tipoElemento.toLowerCase());
		if (result == null)
			result = prefixoClasseDto + tipoElemento + "DTO";
		return result;
	}

	public static String getClasseNegocioElemento(String tipoElemento) {
		String result = getProps().getProperty("classe.negocio.elemento."+tipoElemento.toLowerCase());
		if (result == null)
			result = prefixoClasseNegocio + tipoElemento;
		return result;
	}

	public static Design getRender() {
		try {
			String propriedades = UtilTratamentoArquivos.getStringTextFromFileTxt(CitAjaxUtil.CAMINHO_REAL_APP + "/WEB-INF/" + designJson);		
			design = new Gson().fromJson(propriedades, Design.class);
			design.configuraElementos();
		} catch (Exception e) {
			e.printStackTrace();
		}
		return design;
	}

}