com.googlecode.wicket.jquery.ui.calendar.CalendarModelBehavior.java Source code

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Here is the source code for com.googlecode.wicket.jquery.ui.calendar.CalendarModelBehavior.java

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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.googlecode.wicket.jquery.ui.calendar;

import java.util.Date;
import java.util.List;

import org.apache.wicket.Application;
import org.apache.wicket.behavior.AbstractAjaxBehavior;
import org.apache.wicket.request.IRequestCycle;
import org.apache.wicket.request.IRequestHandler;
import org.apache.wicket.request.IRequestParameters;
import org.apache.wicket.request.cycle.RequestCycle;
import org.apache.wicket.request.http.WebResponse;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

/**
 * Provides the behavior that gets the {@link CalendarEvent}<code>s</code> from the {@link CalendarModel}
 *
 * @author Sebastien Briquet - sebfz1
 *
 */
class CalendarModelBehavior extends AbstractAjaxBehavior {
    private static final long serialVersionUID = 1L;
    private static final Logger LOG = LoggerFactory.getLogger(CalendarModelBehavior.class);

    private CalendarModel model;

    /**
     * Constructor
     *
     * @param model the {@link CalendarModel}
     */
    public CalendarModelBehavior(CalendarModel model) {
        this.model = model;
    }

    @Override
    public void onRequest() {
        final RequestCycle requestCycle = RequestCycle.get();
        IRequestParameters parameters = requestCycle.getRequest().getQueryParameters();

        final long start = parameters.getParameterValue("start").toLong(0);
        final long end = parameters.getParameterValue("end").toLong(0);

        if (this.model != null) {
            this.model.setStart(new Date(start * 1000));
            this.model.setEnd(new Date(end * 1000));
        }

        final IRequestHandler handler = this.newRequestHandler();
        requestCycle.scheduleRequestHandlerAfterCurrent(handler);
    }

    /**
     * Gets the new {@link IRequestHandler} that will respond the list of {@link CalendarEvent} in a json format
     *
     * @return the {@link IRequestHandler}
     */
    private IRequestHandler newRequestHandler() {
        return new IRequestHandler() {
            @Override
            public void respond(final IRequestCycle requestCycle) {
                WebResponse response = (WebResponse) requestCycle.getResponse();

                final String encoding = Application.get().getRequestCycleSettings().getResponseRequestEncoding();
                response.setContentType("text/json; charset=" + encoding);
                response.disableCaching();

                if (model != null) {
                    List<? extends CalendarEvent> list = model.getObject(); // calls load()

                    if (list != null) {
                        StringBuilder builder = new StringBuilder("[ ");

                        int count = 0;
                        for (CalendarEvent event : list) {
                            if (model instanceof ICalendarVisitor) {
                                event.accept((ICalendarVisitor) model); //last chance to set options
                            }

                            if (count++ > 0) {
                                builder.append(", ");
                            }
                            builder.append(event.toString());
                        }

                        builder.append(" ]");

                        LOG.debug(builder.toString());
                        response.write(builder);
                    }
                }
            }

            @Override
            public void detach(final IRequestCycle requestCycle) {
            }
        };
    }
}