ConversionUtils.java

/**
 * PermissionsEx
 * Copyright (C) zml and PermissionsEx contributors
 *
 * 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 ninja.leaping.permissionsex.backend;

import ninja.leaping.permissionsex.data.ImmutableSubjectData;

import java.util.List;
import java.util.Map;
import java.util.Set;
import java.util.regex.Matcher;
import java.util.regex.Pattern;

public class ConversionUtils {
    private static final Pattern MATCHER_GROUP_PATTERN = Pattern.compile("\\((.*?)\\)");

    public static String convertLegacyPermission(String permission) {
        final StringBuffer ret = new StringBuffer();
        Matcher matcher = MATCHER_GROUP_PATTERN.matcher(permission); // Convert regex multimatches to shell globs
        while (matcher.find()) {
            matcher.appendReplacement(ret, "{" + matcher.group(1).replace('|', ',') + "}");
        }
        matcher.appendTail(ret);
        if (ret.length() > 2 && ret.substring(ret.length() - 2).equals(".*")) { // Delete .* from nodes -- this is implied now
            ret.delete(ret.length() - 2, ret.length());
        }
        return ret.toString();
    }

    @SuppressWarnings("unchecked")
    public static <T extends ImmutableSubjectData> T transfer(ImmutableSubjectData old, T newData) {
        ImmutableSubjectData tempRet = newData;
        for (Map.Entry<Set<Map.Entry<String, String>>, Map<String, Integer>> ent : old.getAllPermissions().entrySet()) {
            tempRet = tempRet.setPermissions(ent.getKey(), ent.getValue());
        }
        for (Map.Entry<Set<Map.Entry<String, String>>, Map<String, String>> ent : old.getAllOptions().entrySet()) {
            tempRet = tempRet.setOptions(ent.getKey(), ent.getValue());
        }
        for (Map.Entry<Set<Map.Entry<String, String>>, List<Map.Entry<String, String>>> ent : old.getAllParents().entrySet()) {
            tempRet = tempRet.setParents(ent.getKey(), ent.getValue());
        }
        for (Map.Entry<Set<Map.Entry<String, String>>, Integer> ent : old.getAllDefaultValues().entrySet()) {
            tempRet = tempRet.setDefaultValue(ent.getKey(), ent.getValue());
        }
        return (T) tempRet;
    }
}