RandomSec/main/java/com/metaweb/gridworks/commands/expr/LogExpressionCommand.java

package com.metaweb.gridworks.commands.expr;

import java.io.IOException;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import com.metaweb.gridworks.commands.Command;
import com.metaweb.gridworks.model.Project;

public class LogExpressionCommand extends Command {
    
    @Override
    public void doPost(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        
        try {
            Project project = getProject(request);
            String expression = request.getParameter("expression");
            
            project.getMetadata().addLatestExpression(expression);
            
            response.setCharacterEncoding("UTF-8");
            response.setHeader("Content-Type", "application/json");
            response.getWriter().write("{ \"code\" : \"ok\" }");
        } catch (Exception e) {
            respondException(response, e);
        }
    }
}