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// Copyright Vespa.ai. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
package com.yahoo.vespa.config.proxy;
import com.yahoo.vespa.config.protocol.JRTServerConfigRequest;
import java.util.concurrent.Delayed;
import java.util.concurrent.TimeUnit;
/**
* Class that handles responses that are put on delayedResponses queue. Implements the <code>Delayed</code>
* interface to keep track of the order of responses (used when checking
* delayed responses and returning requests that are about to time out, in cases where no new
* config has been returned from upstream)
*
* @see DelayedResponseHandler
*/
public class DelayedResponse implements Delayed {
private final JRTServerConfigRequest request;
private final long returnTime;
public DelayedResponse(JRTServerConfigRequest request) {
this(request, System.currentTimeMillis() + request.getTimeout());
}
DelayedResponse(JRTServerConfigRequest request, long returnTime) {
this.request = request;
this.returnTime = returnTime;
}
public Long getReturnTime() {
return returnTime;
}
public JRTServerConfigRequest getRequest() {
return request;
}
@Override
public long getDelay(TimeUnit unit) {
return returnTime - System.currentTimeMillis();
}
@Override
public int compareTo(Delayed delayed) {
if (this == delayed) {
return 0;
}
if (delayed instanceof com.yahoo.vespa.config.proxy.DelayedResponse) {
if (this.returnTime < ((com.yahoo.vespa.config.proxy.DelayedResponse) delayed).getReturnTime()) {
return -1;
} else {
return 1;
}
} else {
return 0;
}
}
@Override
public String toString() {
return request.getShortDescription() + ", delayLeft=" + getDelay(TimeUnit.MILLISECONDS) + " ms";
}
}
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