Java Path Normalize normalizeSlashes(final String path)

Description

Adds a '/' prefix to the beginning of a path if one isn't present and removes trailing slashes if any are present.

License

Open Source License

Parameter

Parameter	Description
path	the path to normalize

Return

a normalized (with respect to slashes) result

Declaration

public static String normalizeSlashes(final String path) 

Method Source Code

//package com.java2s;
/*//from www  .  j a v  a2s .  com
 * JBoss, Home of Professional Open Source.
 * Copyright 2014 Red Hat, Inc., and individual contributors
 * as indicated by the @author tags.
 *
 * 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.
 */

public class Main {
    private static final char PATH_SEPARATOR = '/';

    /**
     * Adds a '/' prefix to the beginning of a path if one isn't present
     * and removes trailing slashes if any are present.
     *
     * @param path the path to normalize
     * @return a normalized (with respect to slashes) result
     */
    public static String normalizeSlashes(final String path) {
        // prepare
        final StringBuilder builder = new StringBuilder(path);
        boolean modified = false;

        // remove all trailing '/'s except the first one
        while (builder.length() > 0 && builder.length() != 1
                && PATH_SEPARATOR == builder.charAt(builder.length() - 1)) {
            builder.deleteCharAt(builder.length() - 1);
            modified = true;
        }

        // add a slash at the beginning if one isn't present
        if (builder.length() == 0 || PATH_SEPARATOR != builder.charAt(0)) {
            builder.insert(0, PATH_SEPARATOR);
            modified = true;
        }

        // only create string when it was modified
        if (modified) {
            return builder.toString();
        }

        return path;
    }
}

Related

1. normalizePathSeparator(final String path)
2. normalizeRegex(String path)
3. normalizeRegex(String pathPattern)
4. normalizeResourcesPath(final String path)
5. normalizeRootPath(String rootPath)
6. normalizeSlashes(String path)
7. normalizeToDir(CharSequence path)
8. normalizeURI(String prefix, String relativePath)
9. normalizeUriPath(String path)