io.servicecomb.transport.rest.servlet.ServletUtils Maven / Gradle / Ivy

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/*
 * Copyright 2017 Huawei Technologies Co., Ltd
 *
 * 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
 *
 * 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 io.servicecomb.transport.rest.servlet;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.util.StringUtils;

import io.servicecomb.foundation.common.net.IpPort;
import io.servicecomb.foundation.common.net.NetUtils;

public class ServletUtils {
    private static final Logger LOGGER = LoggerFactory.getLogger(ServletRestTransport.class);

    public static boolean canPublishEndpoint(String listenAddress) {
        if (StringUtils.isEmpty(listenAddress)) {
            LOGGER.info("listenAddress is null, can not publish.");
            return false;
        }

        IpPort ipPort = NetUtils.parseIpPortFromURI("http://" + listenAddress);
        if (ipPort == null) {
            LOGGER.info("invalid listenAddress {}, can not publish, format should be ip:port.", listenAddress);
            return false;
        }

        if (NetUtils.canTcpListen(ipPort.getSocketAddress().getAddress(), ipPort.getPort())) {
            LOGGER.info("{} is not listened, can not publish.", ipPort.getSocketAddress());
            return false;
        }

        return true;
    }
}