io.servicecomb.transport.rest.servlet.ServletRestTransport 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 java.util.HashMap;
import java.util.Map;

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

import io.servicecomb.core.Invocation;
import io.servicecomb.core.transport.AbstractTransport;
import io.servicecomb.foundation.common.net.URIEndpointObject;
import io.servicecomb.serviceregistry.api.Const;
import io.servicecomb.swagger.invocation.AsyncResponse;
import io.servicecomb.transport.rest.client.RestTransportClient;
import io.servicecomb.transport.rest.client.RestTransportClientManager;

@Component
public class ServletRestTransport extends AbstractTransport {
  private static final Logger LOGGER = LoggerFactory.getLogger(ServletRestTransport.class);

  @Override
  public String getName() {
    return io.servicecomb.core.Const.RESTFUL;
  }

  @Override
  public boolean canInit() {
    String listenAddress = ServletConfig.getLocalServerAddress();
    if (listenAddress == null) {
      // not publish, but can init and be RESTful client
      return true;
    }

    if (!ServletUtils.canPublishEndpoint(listenAddress)) {
      LOGGER.info("ignore transport {}.", this.getClass().getName());
      return false;
    }

    return true;
  }

  @Override
  public boolean init() {
    String urlPrefix = System.getProperty(Const.URL_PREFIX);
    Map queryMap = new HashMap<>();
    if (!StringUtils.isEmpty(urlPrefix)) {
      queryMap.put(Const.URL_PREFIX, urlPrefix);
    }

    String listenAddress = ServletConfig.getLocalServerAddress();
    setListenAddressWithoutSchema(listenAddress, queryMap);

    return deployClient();
  }

  private boolean deployClient() {
    return RestTransportClientManager.INSTANCE.getRestTransportClient(true) != null &&
        RestTransportClientManager.INSTANCE.getRestTransportClient(false) != null;
  }

  @Override
  public void send(Invocation invocation, AsyncResponse asyncResp) throws Exception {
    URIEndpointObject endpoint = (URIEndpointObject) invocation.getEndpoint().getAddress();
    RestTransportClient client =
        RestTransportClientManager.INSTANCE.getRestTransportClient(endpoint.isSslEnabled());
    client.send(invocation, asyncResp);
  }
}