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/**
* Copyright (c) 2009-2011, NetBout.com
* 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) Neither the name of the NetBout.com nor
* the names of its contributors may be used to endorse or promote
* products derived from this software without specific prior written
* permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS 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 COPYRIGHT HOLDER OR 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.
*/
package com.netbout.spi;
import com.ymock.util.Logger;
import java.util.Collection;
import java.util.Date;
import java.util.Iterator;
import java.util.Set;
/**
* Utils for netbout entities manipulations.
*
* @author Yegor Bugayenko ([email protected])
* @version $Id: NetboutUtils.java 1796 2012-03-10 03:42:41Z guard $
*/
public final class NetboutUtils {
/**
* It's a utility class.
*/
private NetboutUtils() {
// empty
}
/**
* Get alias of identity.
* @param identity The identity
* @return The alias
*/
public static String aliasOf(final Identity identity) {
final Profile profile = identity.profile();
assert profile != null : "Profile is NULL";
final Set aliases = profile.aliases();
assert aliases != null : "Set of aliases in the profile is NULL";
final Iterator iter = aliases.iterator();
String alias;
if (iter.hasNext()) {
alias = iter.next();
} else {
alias = identity.name().toString();
}
return alias;
}
/**
* Normalize the query.
* @param query Raw format
* @return The text for predicate
*/
public static String normalize(final String query) {
String normalized;
if (query == null) {
normalized = NetboutUtils.normalize("");
} else if (!query.isEmpty() && query.charAt(0) == '('
&& query.endsWith(")")) {
normalized = query;
} else {
normalized = String.format(
// @checkstyle LineLength (1 line)
"(or (matches '%s' $text) (matches '%1$s' $bout.title) (matches '%1$s' $author.alias))",
query.replace("'", "\\'")
);
}
return normalized;
}
/**
* Get the latest date of the particular bout (when it was updated by
* anyone).
* @param bout The bout to check
* @return Its recent date
*/
public static Date dateOf(final Bout bout) {
final Iterable msgs = bout.messages("(pos 0)");
Date recent = bout.date();
if (msgs.iterator().hasNext()) {
final Message msg = msgs.iterator().next();
final Date mdate = msg.date();
if (mdate.before(recent)) {
throw new IllegalArgumentException(
String.format(
// @checkstyle LineLength (1 line)
"Message #%d in bout #%d created on '%s', which before bout was created '%s', how come?",
msg.number(),
bout.number(),
mdate,
recent
)
);
}
recent = mdate;
}
return recent;
}
/**
* Find a person in the bout, if he's there (otherwise throw a runtime
* exception).
* @param identity The person to find
* @param bout Where to find
* @return The participant
*/
public static Participant participantOf(final Identity identity,
final Bout bout) {
final Collection participants = bout.participants();
Participant found = null;
for (Participant participant : participants) {
if (participant.identity().name().equals(identity.name())) {
found = participant;
}
}
if (found == null) {
throw new IllegalStateException(
Logger.format(
"Can't find myself ('%s') among %d participants: %[list]s",
identity,
participants.size(),
participants
)
);
}
return found;
}
/**
* Checks whether this person participates in the bout.
* @param name Name of the person
* @param bout Where to find
* @return He is in?
*/
public static boolean participatesIn(final Urn name,
final Bout bout) {
final Collection participants = bout.participants();
boolean found = false;
for (Participant participant : participants) {
if (participant.identity().name().equals(name)) {
found = true;
break;
}
}
return found;
}
}
