package com.googlecode.richrest.server.serializer;
import java.io.IOException;
import java.io.Serializable;
import java.util.Properties;
import javax.servlet.ServletContext;
import javax.servlet.http.HttpServletResponse;
import org.commontemplate.core.Context;
import org.commontemplate.core.Template;
import org.commontemplate.engine.Engine;
import org.commontemplate.standard.ConfigurationSettings;
import org.commontemplate.standard.loader.ClasspathSourceLoader;
import org.commontemplate.tools.PropertiesConfigurationLoader;
import org.commontemplate.tools.bean.ServletClassResourceLoader;
import org.commontemplate.tools.web.ModelMap;
import com.googlecode.richrest.server.ActionServletContext;
import com.googlecode.richrest.server.util.PropertiesUtils;
/**
* CommonTemplate模板结果序列化器.
* 参见：<a href="http://www.commontemplate.org">http://www.commontemplate.org</a>
* @author <a href="mailto:liangfei0201@gmail.com">liangfei</a>
*/
public class CommonTemplateServletSerializer extends PageServletSerializer {
private final Engine engine;
public CommonTemplateServletSerializer() {
try {
ServletContext servletContext = ActionServletContext.getContext().getServletContext();
Properties properties = PropertiesUtils.getProperties(getPropertiesName());
ConfigurationSettings config = PropertiesConfigurationLoader.loadConfiguration(properties, new ServletClassResourceLoader(servletContext), null);
config.setSourceLoader(new ClasspathSourceLoader());
engine = new Engine(config);
} catch (RuntimeException e) {
throw e;
} catch (Exception e) {
throw new RuntimeException(e.getMessage(), e);
}
}
protected String getPageExtension() {
return "ctl";
}
protected String getPropertiesName() {
return "comontemplate.properties";
}
protected void serialize(Serializable obj, HttpServletResponse response, String page)
throws IOException {
Template template = engine.getTemplate(page);
Context context = engine.createContext(response.getWriter());
try {
context.pushLocalContext(new ModelMap(obj));
context.setLocale(getLocale());
template.render(context);
} finally {
context.clear();
}
}
}