Added deprecated video endpoint.

Author: And1sS

src/main/java/org/prebid/server/spring/config/server/application/ApplicationServerConfiguration.java

@@ -39,9 +39,9 @@
 import org.prebid.server.handler.NoCacheHandler;
 import org.prebid.server.handler.NotificationEventHandler;
 import org.prebid.server.handler.OptoutHandler;
+import org.prebid.server.handler.PostVtrackHandler;
 import org.prebid.server.handler.SetuidHandler;
 import org.prebid.server.handler.StatusHandler;
-import org.prebid.server.handler.PostVtrackHandler;
 import org.prebid.server.handler.info.BidderDetailsHandler;
 import org.prebid.server.handler.info.BiddersHandler;
 import org.prebid.server.handler.info.filters.BaseOnlyBidderInfoFilterStrategy;
@@ -56,6 +56,7 @@
 import org.prebid.server.json.JacksonMapper;
 import org.prebid.server.log.HttpInteractionLogger;
 import org.prebid.server.metric.Metrics;
+import org.prebid.server.model.Endpoint;
 import org.prebid.server.optout.GoogleRecaptchaVerifier;
 import org.prebid.server.privacy.HostVendorTcfDefinerService;
 import org.prebid.server.settings.ApplicationSettings;
@@ -64,8 +65,10 @@
 import org.prebid.server.validation.BidderParamValidator;
 import org.prebid.server.version.PrebidVersionProvider;
 import org.prebid.server.vertx.verticles.VerticleDefinition;
+import org.prebid.server.vertx.verticles.server.HttpEndpoint;
 import org.prebid.server.vertx.verticles.server.ServerVerticle;
 import org.prebid.server.vertx.verticles.server.application.ApplicationResource;
+import org.prebid.server.vertx.verticles.server.application.DeprecatedResource;
 import org.springframework.beans.factory.annotation.Value;
 import org.springframework.boot.autoconfigure.condition.ConditionalOnProperty;
 import org.springframework.boot.context.properties.ConfigurationProperties;
@@ -271,6 +274,7 @@ AmpHandler openrtbAmpHandler(
     }
 
     @Bean
+    @ConditionalOnProperty(value = "video.enable-deprecated-endpoint", havingValue = "true")
     VideoHandler openrtbVideoHandler(
             VideoRequestFactory videoRequestFactory,
             VideoResponseFactory videoResponseFactory,
@@ -297,6 +301,15 @@ VideoHandler openrtbVideoHandler(
                 mapper);
     }
 
+    @Bean
+    @ConditionalOnProperty(value = "video.enable-deprecated-endpoint", havingValue = "false", matchIfMissing = true)
+    ApplicationResource deprecatedAuctionResource() {
+        return new DeprecatedResource(
+                "The video endpoint is deprecated and will be removed in 5.0." +
+                        " You may re-enable it via [video.enable-deprecated-endpoint]",
+                HttpEndpoint.of(HttpMethod.POST, Endpoint.openrtb2_video.value()));
+    }
+
     @Bean
     StatusHandler statusHandler(List<HealthChecker> healthCheckers, JacksonMapper mapper) {
         healthCheckers.stream()

src/main/java/org/prebid/server/vertx/verticles/server/application/DeprecatedResource.java

@@ -0,0 +1,33 @@
+package org.prebid.server.vertx.verticles.server.application;
+
+import io.netty.handler.codec.http.HttpResponseStatus;
+import io.vertx.ext.web.RoutingContext;
+import org.apache.commons.lang3.StringUtils;
+import org.prebid.server.vertx.verticles.server.HttpEndpoint;
+
+import java.util.Arrays;
+import java.util.List;
+
+public class DeprecatedResource implements ApplicationResource {
+
+    private final String message;
+
+    private final List<HttpEndpoint> endpoints;
+
+    public DeprecatedResource(String message, HttpEndpoint... endpoints) {
+        this.message = message;
+        this.endpoints = Arrays.asList(endpoints);
+    }
+
+    @Override
+    public List<HttpEndpoint> endpoints() {
+        return endpoints;
+    }
+
+    @Override
+    public void handle(RoutingContext event) {
+        event.response()
+                .setStatusCode(HttpResponseStatus.GONE.code())
+                .end(StringUtils.defaultString(message));
+    }
+}