JMeter example source code file (StringUtilities.java)

This example JMeter source code file (StringUtilities.java) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" ^TM.

Java - JMeter tags/keywords

string, string, stringbuilder, stringbuilder, stringutilities, stringutilities

The JMeter StringUtilities.java source code

/*
 * 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.jmeter.util;

public final class StringUtilities {

    /**
     * Private constructor to prevent instantiation.
     */
    private StringUtilities() {
    }

    /**
     * Replace all patterns in a String
     *
     * @see String#replaceAll(String,String)
     *  - JDK1.4 only
     *
     * @param input - string to be transformed
     * @param pattern - pattern to replace
     * @param sub - replacement
     * @return the updated string
     */
    public static String substitute(final String input, final String pattern, final String sub) {
        StringBuilder ret = new StringBuilder(input.length());
        int start = 0;
        int index = -1;
        final int length = pattern.length();
        while ((index = input.indexOf(pattern, start)) >= start) {
            ret.append(input.substring(start, index));
            ret.append(sub);
            start = index + length;
        }
        ret.append(input.substring(start));
        return ret.toString();
    }
}