com.github.pmairif.weberknecht.request.routing.flex.DynamicTaskGenericRoute Maven / Gradle / Ivy

Go to download

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

Yet another java web framework that wants to make web developers life a bit easier.

There is a newer version: 1.0.4

/*
 * DynamicTaskGenericRoute.java (weberknecht)
 *
 * Copyright 2015 Patrick Mairif.
 * The program is distributed under the terms of the Apache License (ALv2).
 *
 * tabstop=4, charset=UTF-8
 */
package com.github.pmairif.weberknecht.request.routing.flex;

import com.github.pmairif.weberknecht.request.routing.ActionPath;

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

/**
 * routing definition entity with dynamic tasks
 */
public class DynamicTaskGenericRoute extends GenericRoute {

    private static final Pattern validTaskPattern = Pattern.compile("[a-zA-Z0-9_-]+");

    /**
     * optional target action task
     */
    private String task = null;

    public DynamicTaskGenericRoute(String pattern, ActionPath actionPath) {
        this(pattern, actionPath, "");
    }

    public DynamicTaskGenericRoute(String pattern, ActionPath actionPath, String processor) {
        super(pattern, actionPath, processor, null);
    }

    /**
     * @param given current parameter
     * @param pathElement  pattern element
     * @return true, match
     */
    protected boolean matchElement(String given, PathElement pathElement) {
        String expected = pathElement.getString();

        if (pathElement.isParameter()) {
            if (!handleParameter(given, pathElement.getParamName()))
                return false;
        }
        else if ("[task]".equals(expected)) {
            if (!handleTask(given))
                return false;
        }
        else if (!given.equals(expected))
            return false;

        return true;
    }

    /**
     * @param currentValue  current value passed via URL
     * @return true, if task was valid
     */
    private boolean handleTask(String currentValue) {
        Matcher m = validTaskPattern.matcher(currentValue);
        if (!m.matches())
            return false;

        this.task = currentValue;
        return true;
    }

    public String getTask() {
        return task;
    }
}