StringUtils.java Source code

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Here is the source code for StringUtils.java

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/*
JSPWiki - a JSP-based WikiWiki clone.
    
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.    
 */

import java.security.SecureRandom;
import java.util.Properties;
import java.util.Random;

public class StringUtils {

    /**
     *  Creates a Properties object based on an array which contains alternatively
     *  a key and a value.  It is useful for generating default mappings.
     *  For example:
     *  <pre>
     *     String[] properties = { "jspwiki.property1", "value1",
     *                             "jspwiki.property2", "value2 };
     *
     *     Properties props = TextUtil.createPropertes( values );
     *
     *     System.out.println( props.getProperty("jspwiki.property1") );
     *  </pre>
     *  would output "value1".
     *
     *  @param values Alternating key and value pairs.
     *  @return Property object
     *  @see java.util.Properties
     *  @throws IllegalArgumentException if the property array is missing
     *          a value for a key.
     *  @since 2.2.
     */

    public static Properties createProperties(String[] values) throws IllegalArgumentException {
        if (values.length % 2 != 0)
            throw new IllegalArgumentException("One value is missing.");

        Properties props = new Properties();

        for (int i = 0; i < values.length; i += 2) {
            props.setProperty(values[i], values[i + 1]);
        }

        return props;
    }

}