org.primefaces.component.organigram.OrganigramHelper Maven / Gradle / Ivy

Show more of this group Show more artifacts with this name
Show all versions of primefaces Show documentation

PrimeFaces is one of the most popular UI libraries in Java EE Ecosystem and widely used by software companies, world renowned brands, banks, financial institutions, insurance companies, universities and more.

There is a newer version: 14.0.0

Show newest version

/**
 * Copyright 2009-2018 PrimeTek.
 *
 * 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.primefaces.component.organigram;

import org.primefaces.model.OrganigramNode;

/**
 * Some helpers methods for the organigram model/component.
 */
public final class OrganigramHelper {

    /**
     * Finds a {@link OrganigramNode} for the given rowKey.
     *
     * @param searchRoot The {@link OrganigramNode} to start the search.
     * @param rowKey The rowKey.
     * @return The {@link OrganigramNode} for the rowKey or null.
     */
    public static OrganigramNode findTreeNode(OrganigramNode searchRoot, String rowKey) {

        if (rowKey == null || searchRoot == null) {
            return null;
        }

        if (searchRoot.getRowKey().equals(rowKey)) {
            return searchRoot;
        }

        if (searchRoot.getChildren() != null) {
            for (OrganigramNode child : searchRoot.getChildren()) {
                OrganigramNode childResult = findTreeNode(child, rowKey);
                if (childResult != null) {
                    return childResult;
                }
            }
        }

        return null;
    }

    /**
     * Finds a {@link OrganigramNode} for the given selection.
     *
     * @param searchRoot The {@link OrganigramNode} to start the search.
     * @param selection The selection.
     * @return The {@link OrganigramNode} for the selection or null.
     */
    public static OrganigramNode findTreeNode(OrganigramNode searchRoot, OrganigramNode selection) {
        if (selection == null || searchRoot == null) {
            return null;
        }

        if (searchRoot.equals(selection)) {
            return searchRoot;
        }

        if (searchRoot.getChildren() != null) {
            for (OrganigramNode child : searchRoot.getChildren()) {
                OrganigramNode childResult = findTreeNode(child, selection);
                if (childResult != null) {
                    return childResult;
                }
            }
        }

        return null;
    }

    /**
     * Loops the {@link OrganigramNode}s and generates a rowKey for each node on the basis of the parent and child index.
     *
     * @param node The root node.
     */
    public static void buildRowKeys(OrganigramNode node) {
        if (node.getChildren() != null && !node.getChildren().isEmpty()) {
            for (int i = 0; i < node.getChildren().size(); i++) {
                OrganigramNode childNode = node.getChildren().get(i);

                String childRowKey = (node.getParent() == null) ? String.valueOf(i) : node.getRowKey() + "_" + i;
                childNode.setRowKey(childRowKey);

                buildRowKeys(childNode);
            }
        }
    }
}