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// Copyright Yahoo. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
package com.yahoo.vespa.config.server.http;
import com.yahoo.container.jdisc.HttpRequest;
import com.yahoo.jdisc.application.BindingMatch;
import com.yahoo.vespa.config.server.ApplicationRepository;
import com.yahoo.vespa.config.server.TimeoutBudget;
import java.time.Clock;
import java.time.Duration;
/**
* Super class for session handlers, that takes care of checking valid
* methods for a request. Session handlers should subclass this method and
* implement the handleMETHOD methods that it supports.
*
* @author hmusum
*/
public class SessionHandler extends HttpHandler {
protected final ApplicationRepository applicationRepository;
public SessionHandler(HttpHandler.Context ctx, ApplicationRepository applicationRepository) {
super(ctx);
this.applicationRepository = applicationRepository;
}
/**
* Set to make sure that timeout for the handler is higher than any timeouts used inside the handler (e.g. zookeeper barrier timeout)
* Setting this too low will lead to a response with status code 504 and empty response body.
*/
@Override
public Duration getTimeout() {
return Duration.ofSeconds(applicationRepository.configserverConfig().zookeeper().barrierTimeout()).plus(Duration.ofSeconds(30));
}
/**
* Gets the raw session id from request (v2). Input request must have a valid path.
*
* @param request a request
* @return a session id
*/
public static String getRawSessionIdV2(HttpRequest request) {
final String path = request.getUri().toString();
BindingMatch<?> bm = Utils.getBindingMatch(request, "http://*/application/v2/tenant/*/session/*/*");
if (bm.groupCount() < 4) {
// This would mean the subtype of this doesn't have the correct binding
throw new IllegalArgumentException("Can not get session id from request '" + path + "'");
}
return bm.group(3);
}
/**
* Gets session id (as a number) from request (v2). Input request must have a valid path.
*
* @param request a request
* @return a session id
*/
public static Long getSessionIdV2(HttpRequest request) {
try {
return Long.parseLong(getRawSessionIdV2(request));
} catch (NumberFormatException e) {
throw createSessionException(request);
}
}
private static BadRequestException createSessionException(HttpRequest request) {
return new BadRequestException("Session id in request is not a number, request was '" +
request.getUri().toString() + "'");
}
public static TimeoutBudget getTimeoutBudget(HttpRequest request, Duration defaultTimeout) {
return getTimeoutBudget(getRequestTimeout(request, defaultTimeout));
}
public static TimeoutBudget getTimeoutBudget(Duration requestTimeout) {
return new TimeoutBudget(Clock.systemUTC(), requestTimeout);
}
/**
* True if this request should ignore activation failure because the session was made from an active session that is not active now
* @param request a {@link com.yahoo.container.jdisc.HttpRequest}
* @return true if ignore failure
*/
protected static boolean shouldIgnoreSessionStaleFailure(HttpRequest request) {
return request.getBooleanProperty("force");
}
}
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