content: /*
   * 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.camel.component.google.calendar.stream;
  
  import java.util.Map;
  
  import com.google.api.services.calendar.Calendar;
  import com.google.api.services.calendar.model.Event;
  import org.apache.camel.Category;
  import org.apache.camel.Consumer;
  import org.apache.camel.Exchange;
  import org.apache.camel.ExchangePattern;
  import org.apache.camel.Message;
  import org.apache.camel.Processor;
  import org.apache.camel.Producer;
  import org.apache.camel.spi.EndpointServiceLocation;
  import org.apache.camel.spi.UriEndpoint;
  import org.apache.camel.spi.UriParam;
  import org.apache.camel.support.ScheduledPollEndpoint;
  import org.apache.camel.util.ObjectHelper;
  
  /**
   * Poll for changes in a Google Calendar.
   */
  @UriEndpoint(firstVersion = "2.23.0",
               scheme = "google-calendar-stream",
               title = "Google Calendar Stream",
               syntax = "google-calendar-stream:index",
               consumerOnly = true,
               category = { Category.CLOUD }, headersClass = GoogleCalendarStreamConstants.class)
  public class GoogleCalendarStreamEndpoint extends ScheduledPollEndpoint implements EndpointServiceLocation {
  
      @UriParam
      private GoogleCalendarStreamConfiguration configuration;
  
      public GoogleCalendarStreamEndpoint(String uri, GoogleCalendarStreamComponent component,
                                          GoogleCalendarStreamConfiguration endpointConfiguration) {
          super(uri, component);
          this.configuration = endpointConfiguration;
      }
  
      @Override
      public Producer createProducer() throws Exception {
          throw new UnsupportedOperationException("The camel google calendar stream component doesn't support producer");
      }
  
      @Override
      public Consumer createConsumer(Processor processor) throws Exception {
          // check for incompatible configuration options
          if (configuration.isSyncFlow()) {
              if (ObjectHelper.isNotEmpty(configuration.getQuery())) {
                  throw new IllegalArgumentException("'query' parameter is incompatible with sync flow.");
              }
              if (configuration.isConsiderLastUpdate()) {
                  throw new IllegalArgumentException("'considerLastUpdate' is incompatible with sync flow.");
              }
          }
  
          final GoogleCalendarStreamConsumer consumer = new GoogleCalendarStreamConsumer(this, processor);
          configureConsumer(consumer);
          return consumer;
      }
  
      public Calendar getClient() {
          return ((GoogleCalendarStreamComponent) getComponent()).getClient(configuration);
      }
  
      public GoogleCalendarStreamConfiguration getConfiguration() {
          return configuration;
      }
  
      public Exchange createExchange(ExchangePattern pattern, Event event) {
          Exchange exchange = super.createExchange(pattern);
          Message message = exchange.getIn();
          message.setBody(event);
          message.setHeader(GoogleCalendarStreamConstants.EVENT_ID, event.getId());
          return exchange;
      }
  
      @Override
      public String getServiceUrl() {
          if (ObjectHelper.isNotEmpty(
                  ObjectHelper.isNotEmpty(configuration.getCalendarId()) && ObjectHelper.isNotEmpty(configuration.getUser()))) {
              return getServiceProtocol() + ":" + configuration.getUser() + ":" + configuration.getCalendarId();
          }
          return null;
      }
  
      @Override
      public String getServiceProtocol() {
          return "calendar-stream";
      }
  
      @Override
      public Map<String, String> getServiceMetadata() {
          if (configuration.getApplicationName() != null) {
              return Map.of("applicationName", configuration.getApplicationName());
          }
          return null;
      }
  }
  