netbout-spi-1.5.src.main.java.com.netbout.spi.cpa.Bump 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.spi.cpa;
import com.netbout.spi.Identity;
import java.util.concurrent.TimeUnit;
/**
* Protector of identity data.
*
* @author Yegor Bugayenko ([email protected])
* @version $Id: Bump.java 3116 2012-08-02 18:28:36Z guard $
*/
final class Bump {
/**
* How many nanoseconds of waiting we can afford.
*/
private static final Long MAX_NANO = 1L * 60 * 1000 * 1000 * 1000;
/**
* Parent identity.
*/
private final transient Identity identity;
/**
* Public ctor.
* @param idnt Identity
*/
public Bump(final Identity idnt) {
this.identity = idnt;
}
/**
* Wait for data readiness.
*/
public void pause() {
final long start = System.nanoTime();
int retry = 0;
while (this.identity.eta() > 0) {
++retry;
if (System.nanoTime() - start > Bump.MAX_NANO) {
throw new IllegalArgumentException(
String.format(
"Identity %s still not ready",
this.identity.name()
)
);
}
try {
TimeUnit.MILLISECONDS.sleep((long) Math.pow(2, retry));
} catch (InterruptedException ex) {
Thread.currentThread().interrupt();
throw new IllegalArgumentException(ex);
}
}
}
}