com.gmail.volodymyrdotsenko.jqxwicket.core.utils.RequestCycleUtils.java Source code

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/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package com.gmail.volodymyrdotsenko.jqxwicket.core.utils;

import java.util.List;

import org.apache.wicket.ajax.AjaxRequestTarget;
import org.apache.wicket.request.IRequestParameters;
import org.apache.wicket.request.cycle.RequestCycle;
import org.apache.wicket.util.string.StringValue;

/**
 * Utility class for retrieving request parameters
 *
 * @author Sebastien Briquet - sebfz1
 *
 */
public class RequestCycleUtils {
    /**
     * Gets the current {@link AjaxRequestTarget}
     *
     * @return the target or <tt>null<tt> if not in an ajax request
     */
    public static AjaxRequestTarget getAjaxRequestTarget() {
        return RequestCycle.get().find(AjaxRequestTarget.class);
    }

    /**
     * Gets the value of a query parameter
     *
     * @param name the name of the query parameter
     * @return a {@link StringValue}
     */
    public static StringValue getQueryParameterValue(String name) {
        final RequestCycle requestCycle = RequestCycle.get();
        final IRequestParameters parameters = requestCycle.getRequest().getQueryParameters();

        return parameters.getParameterValue(name);
    }

    /**
     * Gets the values of a query parameter
     *
     * @param name the name of the query parameter
     * @return a {@link List} of {@link StringValue}
     */
    public static List<StringValue> getQueryParameterValues(String name) {
        final RequestCycle requestCycle = RequestCycle.get();
        final IRequestParameters parameters = requestCycle.getRequest().getQueryParameters();

        return parameters.getParameterValues(name);
    }

    /**
     * Gets the value of a post parameter
     *
     * @param name the name of the query parameter
     * @return a {@link StringValue}
     */
    public static StringValue getPostParameterValue(String name) {
        final RequestCycle requestCycle = RequestCycle.get();
        final IRequestParameters parameters = requestCycle.getRequest().getPostParameters();

        return parameters.getParameterValue(name);
    }

    /**
     * Gets the values of a post parameter
     *
     * @param name the name of the query parameter
     * @return a {@link List} of {@link StringValue}
     */
    public static List<StringValue> getPostParameterValues(String name) {
        final RequestCycle requestCycle = RequestCycle.get();
        final IRequestParameters parameters = requestCycle.getRequest().getPostParameters();

        return parameters.getParameterValues(name);
    }

    /**
     * Utility class
     */
    private RequestCycleUtils() {
    }
}