netbout-lite-1.5.6.src.main.java.com.netbout.lite.Bouts Maven / Gradle / Ivy
/**
* Copyright (c) 2009-2012, 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.lite;
import com.jcabi.log.Logger;
import com.netbout.spi.Bout;
import com.netbout.spi.Identity;
import com.netbout.spi.Query;
import java.util.Collections;
import java.util.LinkedList;
import java.util.List;
import java.util.concurrent.ConcurrentMap;
import java.util.concurrent.ConcurrentSkipListMap;
/**
* Holder of bouts.
*
* The class is thread-safe.
*
* @author Yegor Bugayenko ([email protected])
* @version $Id: Bouts.java 3526 2012-10-30 07:30:27Z guard $
*/
final class Bouts {
/**
* All known bouts and their messages.
*/
private final transient ConcurrentMap all =
new ConcurrentSkipListMap();
/**
* Start new bout.
* @param who Who is staring this bout
* @return The bout just started
*/
public Bout start(final Identity who) {
synchronized (this.all) {
long num;
if (this.all.isEmpty()) {
num = 1;
} else {
num = Collections.max(this.all.keySet()) + 1;
}
final Messages msgs = new Messages();
msgs.invite(who);
this.all.put(num, msgs);
Logger.info(
this,
"#start('%s'): started bout #%d",
who,
num
);
return new LiteBout(msgs, who, num);
}
}
/**
* Find bouts by query.
* @param query Query
* @param who Who is asking
* @return Bouts
*/
public Iterable query(final Query query, final Identity who) {
final List bouts = new LinkedList();
for (ConcurrentMap.Entry entry : this.all.entrySet()) {
if (entry.getValue().query(query).iterator().hasNext()) {
try {
bouts.add(this.get(entry.getKey(), who));
} catch (Identity.BoutNotFoundException ex) {
throw new IllegalStateException(ex);
}
}
}
return bouts;
}
/**
* Get bout by number.
* @param num Bout number
* @param who Who is staring this bout
* @return The bout found
* @throws Identity.BoutNotFoundException If not found
* @checkstyle RedundantThrows (4 lines)
*/
public Bout get(final Long num, final Identity who)
throws Identity.BoutNotFoundException {
final Messages msg = this.all.get(num);
if (msg == null) {
throw new Identity.BoutNotFoundException(num);
}
return new LiteBout(msg, who, num);
}
}