org.antbear.jee.wicket.guestbook.web.AddEntryPanel.java Source code

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Here is the source code for org.antbear.jee.wicket.guestbook.web.AddEntryPanel.java

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/*
 * Copyright 2011 Marcus Geiger.
 *
 * Licensed 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 org.antbear.jee.wicket.guestbook.web;

import java.io.Serializable;
import java.util.GregorianCalendar;
import org.antbear.jee.wicket.guestbook.model.Entry;
import org.antbear.jee.wicket.guestbook.model.Guestbook;
import org.antbear.jee.wicket.guestbook.persistence.GuestbookService;
import org.apache.wicket.markup.html.form.Form;
import org.apache.wicket.markup.html.form.FormComponentLabel;
import org.apache.wicket.markup.html.form.RequiredTextField;
import org.apache.wicket.markup.html.form.TextArea;
import org.apache.wicket.markup.html.panel.FeedbackPanel;
import org.apache.wicket.markup.html.panel.Panel;
import org.apache.wicket.model.CompoundPropertyModel;
import org.apache.wicket.model.Model;
import org.apache.wicket.spring.injection.annot.SpringBean;
import org.apache.wicket.validation.validator.EmailAddressValidator;

/**
 * A wicket panel for adding entries to a guestbook.
 *
 * @author Marcus Geiger
 */
class AddEntryPanel extends Panel {
    private static final long serialVersionUID = 1L;

    /**
     * A simple observer to get notified when an entry has been added to a guestbook.
     */
    public interface EntrySubmitObserver extends Serializable {
        void entrySubmitted();
    }

    @SpringBean
    private GuestbookService guestbookService;

    private EntrySubmitObserver entrySubmitObserver;

    public AddEntryPanel(final String id, final Long guestbookId) {
        super(id);
        add(new FeedbackPanel("feedback"));

        Form<Entry> form = new Form<Entry>("form", new CompoundPropertyModel<Entry>(new Entry())) {
            private static final long serialVersionUID = 1L;

            @Override
            protected void onSubmit() {
                super.onSubmit();

                Entry entry = getModel().getObject();
                entry.setCreationDate(new GregorianCalendar(getLocale()).getTime());

                // Persist entry by merging
                assert guestbookService != null;
                Guestbook guestbook = guestbookService.find(guestbookId);
                entry.setGuestbook(guestbook);
                guestbook.add(entry);
                guestbookService.merge(guestbook);

                // Create new fresh entry for next submit
                Entry freshEntry = new Entry();
                getModel().setObject(freshEntry);

                info("Your comment has been added.");

                // Notify observer, if any
                if (entrySubmitObserver != null)
                    entrySubmitObserver.entrySubmitted();
            }
        };
        add(form);

        RequiredTextField<String> name = new RequiredTextField<String>("authorName");
        name.setLabel(new Model<String>("Name"));
        FormComponentLabel nameLabel = new FormComponentLabel("authorNameLabel", name);
        form.add(nameLabel);
        form.add(name);

        RequiredTextField<String> email = new RequiredTextField<String>("authorEmail");
        email.add(EmailAddressValidator.getInstance());
        email.setLabel(new Model<String>("Email"));
        FormComponentLabel emailLabel = new FormComponentLabel("authorEmailLabel", name);
        form.add(emailLabel);
        form.add(email);

        TextArea<String> text = new TextArea<String>("text");
        text.setRequired(true).setLabel(new Model<String>("Text"));
        FormComponentLabel textLabel = new FormComponentLabel("textLabel", text);
        form.add(textLabel);
        form.add(text);
    }

    public EntrySubmitObserver getEntrySubmitObserver() {
        return entrySubmitObserver;
    }

    public void setEntrySubmitObserver(EntrySubmitObserver entrySubmitObserver) {
        this.entrySubmitObserver = entrySubmitObserver;
    }
}