costumetrade.common.verify.ImageVerification.java Source code

Introduction

Here is the source code for costumetrade.common.verify.ImageVerification.java

Source

/**
 * Copyright (C) 2014-2017, Hrfax and/or its affiliates. All rights reserved.
 * Hrfax PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
 *
 */
package costumetrade.common.verify;

import java.awt.Color;
import java.awt.Font;
import java.awt.Graphics2D;
import java.awt.image.BufferedImage;

import org.apache.commons.lang3.RandomUtils;

import akka.japi.Pair;

/**
 * ???
 * @author zhouyq
 * @Date 2017316
 */
public class ImageVerification {

    // 
    private int width = 160;
    // 
    private int height = 40;
    // ??
    private int codeCount = 4;
    // ??
    private int lineCount = 150;

    private static final char[] codeSequence = { 'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J', 'K', 'L', 'M',
            'N', 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W', 'X', 'Y', 'Z', '1', '2', '3', '4', '5', '6', '7', '8',
            '9' };

    public ImageVerification() {
    }

    /**
     *
     * @param width 
     * @param height 
     */
    public ImageVerification(int width, int height) {
        this.width = width;
        this.height = height;
    }

    /**
     *
     * @param width 
     * @param height 
     * @param codeCount 
     * @param lineCount ?
     */
    public ImageVerification(int width, int height, int codeCount, int lineCount) {
        this.width = width;
        this.height = height;
        this.codeCount = codeCount;
        this.lineCount = lineCount;
    }

    public Pair<String, BufferedImage> create() {
        int x = 0, fontHeight = 0, codeY = 0;
        int red = 0, green = 0, blue = 0;

        x = width / (codeCount + 2);//?
        fontHeight = height - 2;//
        codeY = height - 4;

        // ?buffer
        BufferedImage buffImg = new BufferedImage(width, height, BufferedImage.TYPE_INT_RGB);
        Graphics2D g = buffImg.createGraphics();
        // ?
        g.setColor(Color.WHITE);
        g.fillRect(0, 0, width, height);
        // 
        g.setFont(new Font("Arial", Font.PLAIN, fontHeight));

        for (int i = 0; i < lineCount; i++) {

            int xs = RandomUtils.nextInt(0, width);
            int ys = RandomUtils.nextInt(0, height);
            int xe = xs + RandomUtils.nextInt(0, width / 8);
            int ye = ys + RandomUtils.nextInt(0, height / 8);
            red = RandomUtils.nextInt(0, 255);
            green = RandomUtils.nextInt(0, 255);
            blue = RandomUtils.nextInt(0, 255);
            g.setColor(new Color(red, green, blue));
            g.drawLine(xs, ys, xe, ye);
        }

        // randomCode???
        StringBuilder randomCode = new StringBuilder();
        // ?codeCount??
        for (int i = 0; i < codeCount; i++) {
            String strRand = String.valueOf(codeSequence[RandomUtils.nextInt(0, codeSequence.length)]);
            // ????
            red = RandomUtils.nextInt(0, 255);
            green = RandomUtils.nextInt(0, 255);
            blue = RandomUtils.nextInt(0, 255);
            g.setColor(new Color(red, green, blue));
            g.drawString(strRand, (i + 1) * x, codeY);
            // ??
            randomCode.append(strRand);
        }
        // ????Session
        return new Pair<String, BufferedImage>(randomCode.toString(), buffImg);
    }
}