com.cybermkd.common.Render Maven / Gradle / Ivy

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package com.cybermkd.common;

import com.cybermkd.common.http.HttpRequest;
import com.cybermkd.common.http.HttpResponse;
import com.cybermkd.common.http.exception.WebException;

import javax.imageio.ImageIO;
import java.awt.image.RenderedImage;
import java.io.IOException;
import java.io.OutputStream;
import java.io.PrintWriter;

/**
 * Created by ice on 14-12-29.
 */
public abstract class Render {

    /**
     * Render to client
     */
    public abstract void render(HttpRequest request, HttpResponse response, Object out);

    public void write(HttpRequest request, HttpResponse response, String content) {
        PrintWriter writer = null;
        try {
            writer = response.getWriter();
            writer.print(content);
        } catch (IOException e) {
            throw new WebException(e.getMessage());
        }
    }

    public void write(HttpRequest request, HttpResponse response, String type, RenderedImage content) {
        OutputStream outputStream = null;
        try {
            outputStream = response.getOutputStream();
            ImageIO.write(content, type, outputStream);
        } catch (Exception e) {
            throw new WebException(e.getMessage());
        }
    }
}