src/main/java/org/apache/felix/bundlerepository/metadataparser/ClassUtility.java

/* 
 * 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.felix.bundlerepository.metadataparser;

/**
 * This class provides methods to process class name
 */
public class ClassUtility
{
    /**
     * This method capitalizes the first character in the provided string.
     * @return resulted string
     */
    public static String capitalize(String name)
    {
        int len = name.length();
        StringBuffer sb = new StringBuffer(len);
        boolean setCap = true;
        for (int i = 0; i < len; i++)
        {
            char c = name.charAt(i);
            if (c == '-' || c == '_')
            {
                setCap = true;
            }
            else
            {
                if (setCap)
                {
                    sb.append(Character.toUpperCase(c));
                    setCap = false;
                }
                else
                {
                    sb.append(c);
                }
            }
        }

        return sb.toString();
    }

    /**
     * This method minusculizes all characters in the provided string.
     * @return resulted string
     */
    public static String toLowerCase(String name)
    {
        int len = name.length();
        StringBuffer sb = new StringBuffer(len);
        for (int i = 0; i < len; i++)
        {
            char c = name.charAt(i);
            sb.append(Character.toLowerCase(c));
        }
        return sb.toString();
    }

    /**
     * This method capitalizes all characters in the provided string.
     * @return resulted string
     */
    public static String finalstaticOf(String membername)
    {
        int len = membername.length();
        StringBuffer sb = new StringBuffer(len + 2);
        for (int i = 0; i < len; i++)
        {
            char c = membername.charAt(i);
            if (Character.isLowerCase(c))
            {
                sb.append(Character.toUpperCase(c));
            }
            else if (Character.isUpperCase(c))
            {
                sb.append('_').append(c);
            }
            else
            {
                sb.append(c);
            }
        }

        return sb.toString();
    }

    /**
     * This method returns the package name in a full class name
     * @return resulted string
     */
    public static String packageOf(String fullclassname)
    {
        int index = fullclassname.lastIndexOf(".");
        if (index > 0)
        {
            return fullclassname.substring(0, index);
        }
        else
        {
            return "";
        }
    }

    /**
     * This method returns the package name in a full class name
     * @return resulted string
     */
    public static String classOf(String fullclassname)
    {
        int index = fullclassname.lastIndexOf(".");
        if (index > 0)
        {
            return fullclassname.substring(index + 1);
        }
        else
        {
            return fullclassname;
        }
    }
}