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34 lines
1.2 KiB
Java
34 lines
1.2 KiB
Java
package com.twitter.search.earlybird_root.filters;
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import java.util.concurrent.TimeUnit;
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import com.twitter.finagle.Filter;
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import com.twitter.finagle.Service;
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import com.twitter.search.common.metrics.SearchTimerStats;
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import com.twitter.search.earlybird.thrift.EarlybirdRequest;
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import com.twitter.search.earlybird.thrift.EarlybirdResponse;
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import com.twitter.search.earlybird_root.common.EarlybirdRequestContext;
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import com.twitter.util.Future;
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/**
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* A filter for transforming a RequestContext to an EarlybirdRequest.
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*/
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public class RequestContextToEarlybirdRequestFilter extends
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Filter<EarlybirdRequestContext, EarlybirdResponse, EarlybirdRequest, EarlybirdResponse> {
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private static final SearchTimerStats REQUEST_CONTEXT_TRIP_TIME =
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SearchTimerStats.export("request_context_trip_time", TimeUnit.MILLISECONDS, false,
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true);
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@Override
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public Future<EarlybirdResponse> apply(
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EarlybirdRequestContext requestContext,
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Service<EarlybirdRequest, EarlybirdResponse> service) {
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long tripTime = System.currentTimeMillis() - requestContext.getCreatedTimeMillis();
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REQUEST_CONTEXT_TRIP_TIME.timerIncrement(tripTime);
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return service.apply(requestContext.getRequest());
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}
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}
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