/*
* $Header: /home/cvs/jakarta-commons/validator/src/share/org/apache/commons/validator/ValidatorUtil.java,v 1.7 2003/03/13 02:11:39 dgraham Exp $
* $Revision: 1.7 $
* $Date: 2003/03/13 02:11:39 $
*
* ====================================================================
*
* The Apache Software License, Version 1.1
*
* Copyright (c) 1999-2003 The Apache Software Foundation. All rights
* reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* 3. The end-user documentation included with the redistribution, if
* any, must include the following acknowlegement:
* "This product includes software developed by the
* Apache Software Foundation (http://www.apache.org/)."
* Alternately, this acknowlegement may appear in the software itself,
* if and wherever such third-party acknowlegements normally appear.
*
* 4. The names "The Jakarta Project", "Commons", and "Apache Software
* Foundation" must not be used to endorse or promote products derived
* from this software without prior written permission. For written
* permission, please contact apache@apache.org.
*
* 5. Products derived from this software may not be called "Apache"
* nor may "Apache" appear in their names without prior written
* permission of the Apache Group.
*
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
* ====================================================================
*
* This software consists of voluntary contributions made by many
* individuals on behalf of the Apache Software Foundation. For more
* information on the Apache Software Foundation, please see
* <http://www.apache.org/>.
*
*/
package org.apache.commons.validator;
import java.util.Iterator;
import org.apache.commons.beanutils.PropertyUtils;
import org.apache.commons.collections.FastHashMap;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
/**
* <p>Basic utility methods.</p>
*
* @author David Winterfeldt
* @version $Revision: 1.7 $ $Date: 2003/03/13 02:11:39 $
*/
public class ValidatorUtil {
/**
* Logger
*/
protected static Log log = LogFactory.getLog(ValidatorUtil.class);
/**
* <p>Replace part of a <code>String</code> with another value.</p>
*
* @param value <code>String</code> to perform the replacement on.
* @param key The name of the constant.
* @param replaceValue The value of the constant.
*/
public static String replace(String value, String key, String replaceValue) {
if (value != null && key != null && replaceValue != null) {
int pos = value.indexOf(key);
if (pos >= 0) {
int length = value.length();
int start = pos;
int end = pos + key.length();
if (length == key.length()) {
value = replaceValue;
} else if (end == length) {
value = value.substring(0, start) + replaceValue; //+ value.substring(end);
} else {
value = value.substring(0, start) + replaceValue + replace(value.substring(end), key, replaceValue);
}
}
}
return value;
}
/**
* Convenience method for getting a value from a bean property as a <code>String</code>.
*/
public static String getValueAsString(Object bean, String property) {
Object value = null;
try {
value = PropertyUtils.getProperty(bean, property);
} catch (Exception e) {
log.error(e.getMessage(), e);
}
return (value != null ? value.toString() : null);
}
/**
* Makes a deep copy of a <code>FastHashMap</code> if the values
* are <code>String</code>, <code>Msg</code>, <code>Arg</code>,
* or <code>Var</code>. Otherwise it is a shallow copy.
*
* @param map <code>FastHashMap</code> to copy.
* @return FastHashMap A copy of the <code>FastHashMap</code>
* that was passed in.
*/
public static FastHashMap copyFastHashMap(FastHashMap map) {
FastHashMap hResults = new FastHashMap();
for (Iterator i = map.keySet().iterator(); i.hasNext(); ) {
String key = (String)i.next();
Object value = map.get(key);
if (value instanceof String) {
hResults.put(key, new String((String)value));
} else if (value instanceof Msg) {
hResults.put(key, ((Msg)value).clone());
} else if (value instanceof Arg) {
hResults.put(key, ((Arg)value).clone());
} else if (value instanceof Var) {
hResults.put(key, ((Var)value).clone());
} else {
hResults.put(key, value);
}
}
hResults.setFast(true);
return hResults;
}
}