io.bdeploy.common.util.URLish Maven / Gradle / Ivy

Go to download

Show more of this group Show more artifacts with this name
Show all versions of api Show documentation

Public API including dependencies, ready to be used for integrations and plugins.

The newest version!

package io.bdeploy.common.util;

import java.util.regex.Matcher;
import java.util.regex.Pattern;

/**
 * "Something URL-like", which can be split into scheme, host, port and "the rest".
 * Each of the individual parts can be modified before using toString to get back out a "similar URL-like thing".
 */
public class URLish {

    /**
     * Groups matched by this regular expression:
     * 0: all
     * 1: scheme including ://
     * 2: host with port if present
     * 3: host if port is present
     * 4: port with leading : if port is present
     * 5: port if port is present
     * 6: host if port is *not* present
     * 7: host if port is *not* present and a trailing path *is* present
     * 8: host if port is *not* present and a trailing path is *not* present
     * 9: trailing path if present
     * We simply have to use groups 1, 3, 5, 6 and 9 :)
     */
    private static final Pattern URL_ISH = Pattern.compile("(\\S+:\\/\\/)?((.+(?=:\\d))(:(\\d+))|((.+(?=\\/))|(.+)))?(\\/.*)?");

    public String scheme;
    public String hostname;
    public String port;
    public String pathAndQuery;

    public URLish(String url) {
        Matcher matcher = URL_ISH.matcher(url);
        if (!matcher.find()) {
            throw new IllegalArgumentException("Not a valid URLish: " + url);
        }

        this.scheme = matcher.group(1);
        this.hostname = matcher.group(3) != null ? matcher.group(3) : matcher.group(6); // either with or without port matched
        this.port = matcher.group(5);
        this.pathAndQuery = matcher.group(9);
    }

    @Override
    public String toString() {
        StringBuilder builder = new StringBuilder();

        if (scheme != null) {
            builder.append(scheme);
        }

        builder.append(hostname);

        if (port != null) {
            builder.append(':');
            builder.append(port);
        }

        if (pathAndQuery != null) {
            builder.append(pathAndQuery);
        }

        return builder.toString();
    }

}