/*
* Copyright (c) 2001-2009 Sun Microsystems, Inc. All rights reserved.
*
* The Sun Project JXTA(TM) Software License
*
* 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 acknowledgment: "This product includes software
* developed by Sun Microsystems, Inc. for JXTA(TM) technology."
* Alternately, this acknowledgment may appear in the software itself, if
* and wherever such third-party acknowledgments normally appear.
*
* 4. The names "Sun", "Sun Microsystems, Inc.", "JXTA" and "Project JXTA" must
* not be used to endorse or promote products derived from this software
* without prior written permission. For written permission, please contact
* Project JXTA at http://www.jxta.org.
*
* 5. Products derived from this software may not be called "JXTA", nor may
* "JXTA" appear in their name, without prior written permission of Sun.
*
* 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 SUN
* MICROSYSTEMS 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.
*
* JXTA is a registered trademark of Sun Microsystems, Inc. in the United
* States and other countries.
*
* Please see the license information page at :
* <http://www.jxta.org/project/www/license.html> for instructions on use of
* the license in source files.
*
* ====================================================================
*
* This software consists of voluntary contributions made by many individuals
* on behalf of Project JXTA. For more information on Project JXTA, please see
* http://www.jxta.org.
*
* This license is based on the BSD license adopted by the Apache Foundation.
*/
package net.jxta.impl.cm;
import java.util.Enumeration;
import java.util.HashMap;
import java.util.Map;
import java.util.logging.Level;
import net.jxta.document.Element;
import net.jxta.document.StructuredDocument;
import net.jxta.impl.util.TimeUtils;
import net.jxta.logging.Logging;
/**
* Collection of utility methods useful to {@link AdvertisementCache} implementations,
* extracted from the original {@link Cm} implementation.
*/
public class CacheUtils {
/**
* Extracts the values for all indexable fields in an advertisement.
* @param fields the names of the indexable fields, typically provided by {@link net.jxta.document.Advertisement#getIndexFields()}.
* @param doc the document of the advertisement.
* @return a map of all indexable fields to their values in the provided advertisement document.
*/
public static Map<String, String> getIndexfields(String[] fields, StructuredDocument<?> doc) {
Map<String, String> map = new HashMap<String, String>();
if (doc == null) {
if (Logging.SHOW_WARNING && XIndiceAdvertisementCache.LOG.isWarnEnabled()) {
XIndiceAdvertisementCache.LOG.warn("Null document");
}
return map;
}
if (fields == null) {
return map;
}
for (String field : fields) {
Enumeration<?> en = doc.getChildren(field);
while (en.hasMoreElements()) {
String val = (String) ((Element<?>) en.nextElement()).getValue();
if (val != null) {
map.put(field, val);
}
}
}
return map;
}
public static long getRelativeExpiration(long absoluteLifetime, long relativeExpiry) {
return Math.min(Math.max(-1, TimeUtils.toRelativeTimeMillis(absoluteLifetime)), relativeExpiry);
}
public static String convertValueQueryToRegex(String value) {
return value.replaceAll("\\*", ".*?");
}
public static boolean hasWildcards(String value) {
return value.indexOf('*') != -1;
}
}