edu.infsci2560.PageHtmlValidator.java Source code

Introduction

Here is the source code for edu.infsci2560.PageHtmlValidator.java

Source

/*
 * To change this license header, choose License Headers in Project Properties.
 * To change this template file, choose Tools | Templates
 * and open the template in the editor.
 */
package edu.infsci2560;

import com.jcabi.w3c.Defect;
import com.jcabi.w3c.ValidationResponse;
import com.jcabi.w3c.Validator;
import com.jcabi.w3c.ValidatorBuilder;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import java.io.IOException;
import java.util.ArrayList;
import java.util.List;
import java.util.Set;

import static org.apache.commons.lang3.StringUtils.repeat;
import static org.junit.Assert.assertTrue;

public final class PageHtmlValidator {
    private static final int ALLOWED_ERROR_COUNT = 0;
    private static final int ALLOWED_WARNING_COUNT = 1;
    private static final Logger logger = LoggerFactory.getLogger(PageHtmlValidator.class);

    private PageHtmlValidator() {
    }

    public static void validatePage(String pageSource) {
        Validator htmlValidator = new ValidatorBuilder().html();
        ValidationResponse response = null;
        try {
            response = htmlValidator.validate(pageSource);
        } catch (IOException e) {
            logger.error("Error validation {}", e);
        }

        Set<Defect> errors = response.errors();
        int errorCount = errors.size();
        logger.info("W3C validation errors count: {}", errorCount);
        logDefects(new ArrayList<>(errors), "error");

        Set<Defect> warnings = response.warnings();
        int warningCount = warnings.size();
        logger.info("W3C validation warnings count: {}", warningCount);
        logDefects(new ArrayList<>(warnings), "warning");

        if (errorCount > 0 || warningCount > 0) {
            logger.info(repeat("=", 40));
            logger.info("===PAGE SOURCE==: \n{}", pageSource);
            logger.info(repeat("=", 40));
        }

        assertTrue("Error count exceed.", errorCount <= ALLOWED_ERROR_COUNT);
        assertTrue("Warning count exceed.", warnings.size() <= ALLOWED_WARNING_COUNT);
    }

    private static void logDefects(List<Defect> defects, String warningOrError) {

        for (int i = 0; i < defects.size(); i++) {
            logger.info(repeat("=", 20) + warningOrError + " #" + i + repeat("=", 20));
            logger.info("W3C validation {}: \n{}", warningOrError, defects.get(0));
            logger.info(repeat("=", 20));
        }
    }
}