| /** |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| */ |
| package org.apache.pulsar.proxy.stats; |
| |
| import java.util.List; |
| import java.util.Map; |
| import java.util.Optional; |
| |
| import javax.servlet.ServletContext; |
| import javax.ws.rs.GET; |
| import javax.ws.rs.Path; |
| import javax.ws.rs.Produces; |
| import javax.ws.rs.POST; |
| import javax.ws.rs.PathParam; |
| import javax.ws.rs.core.Context; |
| import javax.ws.rs.core.MediaType; |
| import javax.ws.rs.core.Response.Status; |
| |
| import org.apache.pulsar.proxy.server.ProxyService; |
| |
| import com.google.common.collect.Lists; |
| |
| import io.netty.channel.Channel; |
| import io.swagger.annotations.Api; |
| import io.swagger.annotations.ApiOperation; |
| import io.swagger.annotations.ApiResponse; |
| import io.swagger.annotations.ApiResponses; |
| |
| @Path("/") |
| @Api(value = "/proxy-stats", description = "Stats for proxy", tags = "proxy-stats", hidden = true) |
| @Produces(MediaType.APPLICATION_JSON) |
| public class ProxyStats { |
| |
| public static final String ATTRIBUTE_PULSAR_PROXY_NAME = "pulsar-proxy"; |
| |
| private ProxyService service; |
| |
| @Context |
| protected ServletContext servletContext; |
| |
| @GET |
| @Path("/connections") |
| @ApiOperation(value = "Proxy stats api to get info for live connections", response = List.class, responseContainer = "List") |
| @ApiResponses(value = { @ApiResponse(code = 503, message = "Proxy service is not initialized") }) |
| public List<ConnectionStats> metrics() { |
| List<ConnectionStats> stats = Lists.newArrayList(); |
| proxyService().getClientCnxs().forEach(cnx -> { |
| if (cnx.getDirectProxyHandler() == null) { |
| return; |
| } |
| double requestRate = cnx.getDirectProxyHandler().getInboundChannelRequestsRate().getRate(); |
| double byteRate = cnx.getDirectProxyHandler().getInboundChannelRequestsRate().getValueRate(); |
| Channel inboundChannel = cnx.getDirectProxyHandler().getInboundChannel(); |
| Channel outboundChannel = cnx.getDirectProxyHandler().getOutboundChannel(); |
| stats.add(new ConnectionStats(requestRate, byteRate, inboundChannel, outboundChannel)); |
| }); |
| return stats; |
| } |
| |
| @GET |
| @Path("/topics") |
| @ApiOperation(value = "Proxy topic stats api", response = Map.class, responseContainer = "Map") |
| @ApiResponses(value = { @ApiResponse(code = 412, message = "Proxy logging should be > 2 to capture topic stats"), |
| @ApiResponse(code = 503, message = "Proxy service is not initialized") }) |
| public Map<String, TopicStats> topics() { |
| |
| Optional<Integer> logLevel = proxyService().getConfiguration().getProxyLogLevel(); |
| if (!logLevel.isPresent() || logLevel.get() < 2) { |
| throw new RestException(Status.PRECONDITION_FAILED, "Proxy doesn't have logging level 2"); |
| } |
| return proxyService().getTopicStats(); |
| } |
| |
| @POST |
| @Path("/logging/{logLevel}") |
| @ApiOperation(hidden = true, value = "Change proxy logging level dynamically", notes = "It only changes log-level in memory, change it config file to persist the change") |
| @ApiResponses(value = { @ApiResponse(code = 412, message = "Proxy log level can be [0-2]"), }) |
| public void updateProxyLogLevel(@PathParam("logLevel") int logLevel) { |
| if (logLevel < 0 || logLevel > 2) { |
| throw new RestException(Status.PRECONDITION_FAILED, "Proxy log level can be only [0-2]"); |
| } |
| proxyService().setProxyLogLevel(logLevel); |
| } |
| |
| @GET |
| @Path("/logging") |
| @ApiOperation(hidden = true, value = "Get proxy logging") |
| public int getProxyLogLevel(@PathParam("logLevel") int logLevel) { |
| return proxyService().getProxyLogLevel(); |
| } |
| |
| protected ProxyService proxyService() { |
| if (service == null) { |
| service = (ProxyService) servletContext.getAttribute(ATTRIBUTE_PULSAR_PROXY_NAME); |
| if (service == null) { |
| throw new RestException(Status.SERVICE_UNAVAILABLE, "Proxy service is not initialized"); |
| } |
| } |
| return service; |
| } |
| } |