org.apache.eventmesh.runtime.admin.handler.ShowClientBySystemHandler Maven / Gradle / Ivy

Go to download
Show more of this group Show more artifacts with this name
Show all versions of eventmesh-runtime Show documentation
Apache EventMesh
There is a newer version: 1.10.0-release
/*
 * 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.eventmesh.runtime.admin.handler;

import org.apache.eventmesh.common.Constants;
import org.apache.eventmesh.common.protocol.tcp.UserAgent;
import org.apache.eventmesh.common.utils.NetUtils;
import org.apache.eventmesh.runtime.admin.controller.HttpHandlerManager;
import org.apache.eventmesh.runtime.boot.EventMeshTCPServer;
import org.apache.eventmesh.runtime.common.EventHttpHandler;
import org.apache.eventmesh.runtime.constants.EventMeshConstants;
import org.apache.eventmesh.runtime.core.protocol.tcp.client.group.ClientSessionGroupMapping;
import org.apache.eventmesh.runtime.core.protocol.tcp.client.session.Session;

import java.io.IOException;
import java.io.OutputStream;
import java.net.InetSocketAddress;
import java.util.Map;
import java.util.concurrent.ConcurrentHashMap;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import com.sun.net.httpserver.HttpExchange;

@EventHttpHandler(path = "/clientManage/showClientBySystem")
public class ShowClientBySystemHandler extends AbstractHttpHandler {

    private static final Logger LOGGER = LoggerFactory.getLogger(ShowClientBySystemHandler.class);

    private final EventMeshTCPServer eventMeshTCPServer;

    public ShowClientBySystemHandler(EventMeshTCPServer eventMeshTCPServer, HttpHandlerManager httpHandlerManager) {
        super(httpHandlerManager);
        this.eventMeshTCPServer = eventMeshTCPServer;
    }

    /**
     * print clientInfo by subsys
     *
     * @param httpExchange
     * @throws IOException
     */
    @Override
    public void handle(HttpExchange httpExchange) throws IOException {
        StringBuilder result = new StringBuilder();
        try (OutputStream out = httpExchange.getResponseBody()) {
            String queryString = httpExchange.getRequestURI().getQuery();
            Map queryStringInfo = NetUtils.formData2Dic(queryString);
            String subSystem = queryStringInfo.get(EventMeshConstants.MANAGE_SUBSYSTEM);

            String newLine = System.getProperty("line.separator");
            if (LOGGER.isInfoEnabled()) {
                LOGGER.info("showClientBySubsys,subsys:{}", subSystem);
            }
            ClientSessionGroupMapping clientSessionGroupMapping = eventMeshTCPServer.getClientSessionGroupMapping();
            ConcurrentHashMap sessionMap = clientSessionGroupMapping.getSessionMap();
            if (sessionMap != null && !sessionMap.isEmpty()) {
                for (Session session : sessionMap.values()) {
                    if (session.getClient().getSubsystem().equals(subSystem)) {
                        UserAgent userAgent = session.getClient();
                        result.append(String.format("pid=%s | ip=%s | port=%s | path=%s | purpose=%s",
                                        userAgent.getPid(), userAgent.getHost(), userAgent.getPort(),
                                        userAgent.getPath(), userAgent.getPurpose()))
                                .append(newLine);
                    }
                }
            }
            NetUtils.sendSuccessResponseHeaders(httpExchange);
            out.write(result.toString().getBytes(Constants.DEFAULT_CHARSET));
        }
    }


}