/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you 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.apache.maven.plugin.surefire.util;

import javax.annotation.Nonnull;

/**
 * Relocates class names when running with relocated provider
 *
 * @author Kristian Rosenvold
 */
public final class Relocator {
    private static final String RELOCATION_BASE = "org.apache.maven.";
    private static final String PACKAGE_DELIMITER = "shadefire";

    private Relocator() {
        throw new IllegalStateException("no instantiable constructor");
    }

    @Nonnull
    public static String relocate(@Nonnull String className) {
        if (className.contains(PACKAGE_DELIMITER)) {
            return className;
        } else {
            if (!className.startsWith(RELOCATION_BASE)) {
                throw new IllegalArgumentException("'" + className + "' should start with '" + RELOCATION_BASE + "'");
            }
            String rest = className.substring(RELOCATION_BASE.length());
            final String s = RELOCATION_BASE + PACKAGE_DELIMITER + ".";
            return s + rest;
        }
    }
}
