package org.webslinger.ext.template.freemarker;

 import java.io.IOException;

 import java.io.StringReader;

 import java.io.Writer;

 import java.util.HashMap;

 import java.util.Iterator;

 import java.util.Map;

 import org.apache.bsf.BSFDeclaredBean;

 import org.apache.bsf.BSFException;

 import freemarker.core.Environment;

 import freemarker.ext.beans.BeanModel;

 import freemarker.ext.beans.BeansWrapper;

 import freemarker.template.Configuration;

 import freemarker.template.SimpleHash;

 import freemarker.template.SimpleScalar;

 import freemarker.template.Template;

 import freemarker.template.TemplateHashModel;

 import freemarker.template.TemplateModel;

 import freemarker.template.TemplateModelException;

 import org.webslinger.bsf.CompilingLanguageEngineImpl;

 import org.webslinger.bsf.LanguageEngineInfo;

 import org.webslinger.template.TemplateMacro;

 import org.webslinger.util.GeneratedResult;

 import org.webslinger.util.Source;

 import org.webslinger.vfs.VFSDelegate;

 public class FreemarkerTemplateEngine extends CompilingLanguageEngineImpl<LocalFreemarkerTemplate, LocalFreemarkerTemplate> {

     protected HashMap<String, FreemarkerTransformMacro> macros = new HashMap<String, FreemarkerTransformMacro>();

     public FreemarkerTemplateEngine() throws BSFException {

         compiler = new FreemarkerCompiler(this);

     }

     public LanguageEngineInfo getLanguageEngineInfo() {

         return FreemarkerTemplateInfo.INSTANCE;

     }

     public void declareBean(BSFDeclaredBean bean) throws BSFException {

         if (bean.bean instanceof TemplateMacro) macros.put(bean.name, new FreemarkerTransformMacro(this, (TemplateMacro) bean.bean));

         super.declareBean(bean);

     }

     public void undeclareBean(BSFDeclaredBean bean) throws BSFException {

         if (bean.bean instanceof TemplateMacro) macros.remove(bean.name);

         super.undeclareBean(bean);

     }

     protected Object apply(Object body, LocalFreemarkerTemplate fmTemplate, Object[] args) throws Throwable {

         fmTemplate.process(macros, args);

         return Boolean.TRUE;

     }

     protected Object eval(Object body, LocalFreemarkerTemplate fmTemplate) throws Throwable {

         return null;

     }

     protected void exec(Object body, LocalFreemarkerTemplate fmTemplate) throws Throwable {

     }

 }