netbout-spi-1.4.3.src.main.java.com.netbout.spi.client.EtaAssertion Maven / Gradle / Ivy
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* Copyright (c) 2009-2011, NetBout.com
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* the names of its contributors may be used to endorse or promote
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* permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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package com.netbout.spi.client;
import com.rexsl.test.AssertionPolicy;
import com.rexsl.test.TestResponse;
import com.ymock.util.Logger;
import java.net.HttpURLConnection;
import java.util.concurrent.TimeUnit;
/**
* Asserts that {@code /page/eta} equals to zero.
*
* @author Yegor Bugayenko ([email protected])
* @version $Id: EtaAssertion.java 1738 2012-03-01 22:35:30Z guard $
*/
public final class EtaAssertion implements AssertionPolicy {
/**
* Minimum delay in nanosec.
*/
private static final long MIN_DELAY = 5 * 1000L * 1000 * 1000;
/**
* Maximum delay in nanosec.
*/
private static final long MAX_DELAY = 5 * 60 * 1000L * 1000 * 1000;
/**
* Recently detected ETA.
*/
private transient Long eta = 0L;
/**
* {@inheritDoc}
*/
@Override
public void assertThat(final TestResponse response) {
if (response.getStatus() == HttpURLConnection.HTTP_OK) {
response.assertXPath("/page/identity/eta");
this.eta = Long.valueOf(
response.xpath("/page/identity/eta/text()").get(0)
);
if (this.eta > 0) {
Logger.warn(
this,
// @checkstyle LineLength (1 line)
"assertThat(..): ETA=%[nano]s reported for '%s', the page is not ready",
this.eta,
response.xpath("/page/identity/name/text()").get(0)
);
throw new AssertionError();
}
}
}
/**
* {@inheritDoc}
*/
@Override
public boolean again(final int attempt) {
boolean again = false;
if (this.eta > 0) {
again = true;
final long delay = Math.min(
Math.max(this.eta * attempt, this.MIN_DELAY),
this.MAX_DELAY
);
Logger.warn(
this,
"again(attempt #%d): let's wait %[nano]s and try again",
attempt,
delay
);
try {
TimeUnit.NANOSECONDS.sleep(delay);
} catch (InterruptedException ex) {
throw new IllegalStateException(ex);
}
}
return again;
}
}