guru.mmp.application.web.components.XMLPanel.java Source code

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Here is the source code for guru.mmp.application.web.components.XMLPanel.java

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/*
 * Copyright 2017 Marcus Portmann
 *
 * 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 guru.mmp.application.web.components;

//~--- non-JDK imports --------------------------------------------------------

import org.apache.wicket.Component;
import org.apache.wicket.markup.ComponentTag;
import org.apache.wicket.markup.MarkupElement;
import org.apache.wicket.markup.MarkupStream;
import org.apache.wicket.model.IModel;
import org.apache.wicket.request.Response;

/**
 * The <code>XMLPanel</code> class provides a Wicket component that can be used to display XML.
 *
 * @author Marcus Portmann
 */
@SuppressWarnings("unused")
public class XMLPanel extends Component {
    private static final long serialVersionUID = 1000000;

    /**
     * Constructs a new <code>XMLPanel</code>.
     *
     * @param id    the non-null id of this component
     * @param model the model containing the XML to display
     */
    public XMLPanel(String id, IModel<?> model) {
        super(id, model);
    }

    /**
     * Render the XML panel.
     */
    @Override
    protected void onRender() {
        String xml = getDefaultModelObjectAsString();

        MarkupStream markupStream = findMarkupStream();
        MarkupElement element = markupStream.get();
        Response response = getResponse();

        if (element instanceof ComponentTag) {
            xml = xml.replace("<", "&lt;");
            xml = xml.replace(">", "&gt;");

            response.write(xml);
        }
    }
}