com.github.orangefoundry.gorender.controllers.ImageRenderController.java Source code

Introduction

Here is the source code for com.github.orangefoundry.gorender.controllers.ImageRenderController.java

Source

/**
 * The MIT License
 * Copyright (c) 2016 Orange Foundry
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 */
package com.github.orangefoundry.gorender.controllers;

import com.github.orangefoundry.gorender.colour.ColourToAWTColour;
import com.github.orangefoundry.gorender.defaults.Default;
import org.springframework.web.bind.annotation.*;

import javax.imageio.ImageIO;
import java.awt.*;
import java.awt.image.BufferedImage;
import java.io.ByteArrayOutputStream;
import java.io.IOException;

@RestController
public class ImageRenderController {

    @RequestMapping(value = "/", method = RequestMethod.GET, produces = "image/png")
    public @ResponseBody byte[] renderDefaultWithColour(@RequestParam(value = "c", required = false) String colour,
            @RequestParam(value = "s", required = false) String size) throws java.io.IOException {
        return renderPlaceHolder(size, colour);
    }

    private byte[] renderPlaceHolder(String size, String colour) throws IOException {

        if (size == null || size.isEmpty()) {
            size = Default.SIZE.getValue();
        }

        if (colour == null || colour.isEmpty()) {
            colour = Default.COLOUR.getValue();
        }

        String[] sizes = new String[2];

        if (size != null && !size.isEmpty()) {
            sizes = size.toLowerCase().split("x");
        }

        int width = Integer.parseInt(sizes[0]), height = Integer.parseInt(sizes[1]);

        final ColourToAWTColour colourToAWTColour = new ColourToAWTColour();
        Color myColour = colourToAWTColour.getColour(colour);
        int rgb = myColour.getRGB();

        BufferedImage bi = new BufferedImage(width, height, BufferedImage.TYPE_INT_RGB);
        int[] data = new int[width * height];
        int i = 0;
        for (int y = 0; y < height; y++) {
            for (int x = 0; x < width; x++) {
                data[i++] = rgb;
            }
        }
        bi.setRGB(0, 0, width, height, data, 0, width);

        ByteArrayOutputStream bao = new ByteArrayOutputStream();

        ImageIO.write(bi, "png", bao);

        return bao.toByteArray();
    }
}