org.efaps.ui.wicket.components.classification.ClassificationPath Maven / Gradle / Ivy

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eFaps WebApp provides a web interface as the User Interface for eFaps which can be easily expanded and altered.
There is a newer version: 3.2.0
/*
 * Copyright 2003 - 2012 The eFaps Team
 *
 * 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.
 *
 * Revision:        $Rev: 8900 $
 * Last Changed:    $Date: 2013-02-20 13:50:19 -0500 (Wed, 20 Feb 2013) $
 * Last Changed By: $Author: [email protected] $
 */

package org.efaps.ui.wicket.components.classification;

import java.util.ArrayList;
import java.util.List;

import org.apache.wicket.markup.ComponentTag;
import org.apache.wicket.markup.MarkupStream;
import org.apache.wicket.markup.html.WebComponent;
import org.apache.wicket.model.IModel;
import org.efaps.ui.wicket.models.objects.UIClassification;
import org.efaps.util.cache.CacheReloadException;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

/**
 * TODO comment!
 *
 * @author The eFaps Team
 * @version $Id: ClassificationPath.java 8900 2013-02-20 18:50:19Z [email protected] $
 */
public class ClassificationPath
    extends WebComponent
{

    /**
     * Logging instance used in this class.
     */
    private static final Logger LOG = LoggerFactory.getLogger(ClassificationPath.class);

    /**
     * Needed for serialization.
     */
    private static final long serialVersionUID = 1L;

    /**
     * @param _wicketId wicket id of this component
     * @param _model model for this component
     */
    public ClassificationPath(final String _wicketId,
                              final IModel _model)
    {
        super(_wicketId, _model);
    }

    /**
     * @see org.apache.wicket.Component#onComponentTagBody(org.apache.wicket.markup.MarkupStream,
     *      org.apache.wicket.markup.ComponentTag)
     * @param _markupStream MarkupStream
     * @param _openTag      open tag
     */
    @Override
    public void onComponentTagBody(final MarkupStream _markupStream,
                                   final ComponentTag _openTag)
    {
        super.onComponentTagBody(_markupStream, _openTag);
        final StringBuilder html = new StringBuilder();
        final UIClassification uiclass = (UIClassification) getDefaultModelObject();
        if (!uiclass.isInitialized()) {
            try {
                uiclass.execute();
            } catch (final CacheReloadException e) {
                ClassificationPath.LOG.error("Error for execute", e);
            }
        }
        final List leafs = new ArrayList();

        if (uiclass.isSelected()) {
            findSelectedLeafs(leafs, uiclass);
        }
        for (final UIClassification leaf : leafs) {
            html.append("");
            buildHtml(html, leaf);
            html.append("");
        }

        replaceComponentTagBody(_markupStream, _openTag, html);
    }

    /**
     * @param _leafs        classification leaf
     * @param _uiclass      current classification
     */
    private void findSelectedLeafs(final List _leafs,
                                   final UIClassification _uiclass)
    {
        boolean add = true;
        for (final UIClassification child : _uiclass.getChildren()) {
            if (child.isSelected()) {
                findSelectedLeafs(_leafs, child);
                add = false;
            }
        }
        if (add) {
            _leafs.add(_uiclass);
        }
    }

    /**
     * @param _bldr     StringBUilder for the snipplet
     * @param _uiclass  classifcation
     */
    private void buildHtml(final StringBuilder _bldr,
                           final UIClassification _uiclass)
    {
        UIClassification tmp = _uiclass;
        String path = "" + tmp.getLabel() + "";
        while (!tmp.isRoot()) {
            tmp = tmp.getParent();
            path = "" + tmp.getLabel() + "" + path;
        }
        _bldr.append(path);
    }
}