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Core functionality for the Reactor Netty library
/*
* Copyright (c) 2019-2022 VMware, Inc. or its affiliates, All Rights Reserved.
*
* Licensed 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
*
* https://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 reactor.netty;
import io.micrometer.core.instrument.MeterRegistry;
import reactor.util.annotation.Nullable;
import java.net.InetSocketAddress;
import java.net.SocketAddress;
/**
* Constants and utilities around metrics.
*
* @author Violeta Georgieva
* @since 0.9
*/
public class Metrics {
public static final MeterRegistry REGISTRY = io.micrometer.core.instrument.Metrics.globalRegistry;
// Names
/**
* Name prefix that will be used for the HTTP server's metrics
* registered in Micrometer's global registry
*/
public static final String HTTP_SERVER_PREFIX = "reactor.netty.http.server";
/**
* Name prefix that will be used for the HTTP client's metrics
* registered in Micrometer's global registry
*/
public static final String HTTP_CLIENT_PREFIX = "reactor.netty.http.client";
/**
* Name prefix that will be used for the TCP server's metrics
* registered in Micrometer's global registry
*/
public static final String TCP_SERVER_PREFIX = "reactor.netty.tcp.server";
/**
* Name prefix that will be used for the TCP client's metrics
* registered in Micrometer's global registry
*/
public static final String TCP_CLIENT_PREFIX = "reactor.netty.tcp.client";
/**
* Name prefix that will be used for the UDP server's metrics
* registered in Micrometer's global registry
*/
public static final String UDP_SERVER_PREFIX = "reactor.netty.udp.server";
/**
* Name prefix that will be used for the UDP client's metrics
* registered in Micrometer's global registry
*/
public static final String UDP_CLIENT_PREFIX = "reactor.netty.udp.client";
/**
* Name prefix that will be used for Event Loop Group metrics
* registered in Micrometer's global registry
*/
public static final String EVENT_LOOP_PREFIX = "reactor.netty.eventloop";
/**
* Name prefix that will be used for the PooledConnectionProvider's metrics
* registered in Micrometer's global registry
*/
public static final String CONNECTION_PROVIDER_PREFIX = "reactor.netty.connection.provider";
/**
* Name prefix that will be used for the ByteBufAllocator's metrics
* registered in Micrometer's global registry
*/
public static final String BYTE_BUF_ALLOCATOR_PREFIX = "reactor.netty.bytebuf.allocator";
// Metrics
/**
* Amount of the data received, in bytes
*/
public static final String DATA_RECEIVED = ".data.received";
/**
* Amount of the data sent, in bytes
*/
public static final String DATA_SENT = ".data.sent";
/**
* Number of errors that occurred
*/
public static final String ERRORS = ".errors";
/**
* Time spent for TLS handshake
*/
public static final String TLS_HANDSHAKE_TIME = ".tls.handshake.time";
/**
* Time spent for connecting to the remote address
*/
public static final String CONNECT_TIME = ".connect.time";
/**
* Time spent in consuming incoming data
*/
public static final String DATA_RECEIVED_TIME = ".data.received.time";
/**
* Time spent in sending outgoing data
*/
public static final String DATA_SENT_TIME = ".data.sent.time";
/**
* Total time for the request/response
*/
public static final String RESPONSE_TIME = ".response.time";
/**
* The number of all connections, whether they are active or idle
*/
public static final String CONNECTIONS_TOTAL = ".connections.total";
/**
* The number of connections that are currently in use
*/
public static final String CONNECTIONS_ACTIVE = ".connections.active";
// AddressResolverGroup Metrics
/**
* Time spent for resolving the address
*/
public static final String ADDRESS_RESOLVER = ".address.resolver";
// PooledConnectionProvider Metrics
/**
* The number of all connections, active or idle
*/
public static final String TOTAL_CONNECTIONS = ".total.connections";
/**
* The number of the connections that have been successfully acquired and are in active use
*/
public static final String ACTIVE_CONNECTIONS = ".active.connections";
/**
* The maximum number of active connections that are allowed
*/
public static final String MAX_CONNECTIONS = ".max.connections";
/**
* The number of the idle connections
*/
public static final String IDLE_CONNECTIONS = ".idle.connections";
/**
* The number of requests that are waiting for a connection
*/
public static final String PENDING_CONNECTIONS = ".pending.connections";
/**
* The maximum number of requests that will be queued while waiting for a ready connection
*/
public static final String MAX_PENDING_CONNECTIONS = ".max.pending.connections";
/**
* The number of the active HTTP/2 streams
*/
public static final String ACTIVE_STREAMS = ".active.streams";
/**
* The number of requests that are waiting for opening HTTP/2 stream
*/
public static final String PENDING_STREAMS = ".pending.streams";
// ByteBufAllocator Metrics
/**
* The number of bytes reserved by heap buffer allocator
*/
public static final String USED_HEAP_MEMORY = ".used.heap.memory";
/**
* The number of bytes reserved by direct buffer allocator
*/
public static final String USED_DIRECT_MEMORY = ".used.direct.memory";
/**
* The actual bytes consumed by in-use buffers allocated from heap buffer pools
*/
public static final String ACTIVE_HEAP_MEMORY = ".active.heap.memory";
/**
* The actual bytes consumed by in-use buffers allocated from direct buffer pools
*/
public static final String ACTIVE_DIRECT_MEMORY = ".active.direct.memory";
/**
* The number of heap arenas
*/
public static final String HEAP_ARENAS = ".heap.arenas";
/**
* The number of direct arenas
*/
public static final String DIRECT_ARENAS = ".direct.arenas";
/**
* The number of thread local caches
*/
public static final String THREAD_LOCAL_CACHES = ".threadlocal.caches";
/**
* The size of the small cache
*/
public static final String SMALL_CACHE_SIZE = ".small.cache.size";
/**
* The size of the normal cache
*/
public static final String NORMAL_CACHE_SIZE = ".normal.cache.size";
/**
* The chunk size for an arena
*/
public static final String CHUNK_SIZE = ".chunk.size";
// EventLoop Metrics
/**
* The number of tasks that are pending for processing on an event loop
*/
public static final String PENDING_TASKS = ".pending.tasks";
// HttpServer Metrics
/**
* The number of active HTTP/2 streams
*/
public static final String STREAMS_ACTIVE = ".streams.active";
// Tags
public static final String LOCAL_ADDRESS = "local.address";
public static final String REMOTE_ADDRESS = "remote.address";
public static final String URI = "uri";
public static final String STATUS = "status";
public static final String METHOD = "method";
public static final String ID = "id";
public static final String NAME = "name";
public static final String TYPE = "type";
public static final String SUCCESS = "SUCCESS";
public static final String ERROR = "ERROR";
@Nullable
public static String formatSocketAddress(@Nullable SocketAddress socketAddress) {
if (socketAddress != null) {
if (socketAddress instanceof InetSocketAddress) {
InetSocketAddress address = (InetSocketAddress) socketAddress;
return address.getHostString() + ":" + address.getPort();
}
else {
return socketAddress.toString();
}
}
return null;
}
}
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