Hierarchy.java

/*
 * Nocturne
 * Copyright (c) 2015-2016, Lapis <https://github.com/LapisBlue>
 *
 * The MIT License
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 */

package blue.lapis.nocturne.jar.model.hierarchy;

import static blue.lapis.nocturne.util.Constants.CLASS_PATH_SEPARATOR_PATTERN;

import blue.lapis.nocturne.jar.model.JarClassEntry;

import java.util.Set;

/**
 * Represents a complete hierarchy.
 */
public class Hierarchy extends HierarchyElement {

    /**
     * Generates a hierarchy from the given string {@link Set}.
     *
     * @param entries The {@link JarClassEntry entries} to generate a hierarchy
     *     from
     * @param deobfuscated Whether the entries are deobfuscated
     * @return The generated entry {@link HierarchyNode}
     */
    public static Hierarchy fromSet(Set<JarClassEntry> entries, boolean deobfuscated) {
        Hierarchy root = new Hierarchy();

        for (JarClassEntry jce : entries) {
            String id = jce.getName();
            String fullName = (deobfuscated ? jce.getDeobfuscatedName() : id);
            String[] arr = CLASS_PATH_SEPARATOR_PATTERN.split(fullName);

            HierarchyElement parent = root;
            StringBuilder qual = new StringBuilder();
            for (int i = 0; i < arr.length - 1; i++) {
                qual.append(arr[i]);
                if (parent.getChild(arr[i], false).isPresent()) {
                    parent = parent.getChild(arr[i], false).get();
                } else {
                    parent = new HierarchyNode(qual.toString(), arr[i], false, parent);
                }
            }
            new HierarchyNode(id, arr[arr.length - 1], true, parent);
        }

        return root;
    }

}