Normalize a path, ensuring that it start with a '/' and does not end with a '/'. - Java File Path IO

Java examples for File Path IO:Path

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Description

Normalize a path, ensuring that it start with a '/' and does not end with a '/'.

Demo Code

/*//from  w  w w  .  j  a v  a2 s . co  m
 * ? Copyright IBM Corp. 2012-2013
 * 
 * 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 com.java2s;

public class Main {
    /**
     * Normalize a path, ensuring that it start with a '/' and does not end with a '/'.
     * @ibm-api
     */
    public static String normalizePath(String path, char sep) {
        boolean needLeadingSlash = path.charAt(0) != sep;
        boolean needRemoveTrailingSlash = path.charAt(path.length() - 1) == sep;
        if (needLeadingSlash || needRemoveTrailingSlash) {
            if (needLeadingSlash && needRemoveTrailingSlash) {
                StringBuilder b = new StringBuilder();
                b.append(sep);
                b.append(path, 0, path.length() - 1);
                return b.toString();
            } else if (needLeadingSlash) {
                StringBuilder b = new StringBuilder();
                b.append(sep);
                b.append(path);
                return b.toString();
            } else {
                return path.substring(0, path.length() - 1);
            }
        }
        return path;
    }
}

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