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1   /*
2    * Copyright (c) MuleSoft, Inc.  All rights reserved.  http://www.mulesoft.com
3    * The software in this package is published under the terms of the CPAL v1.0
4    * license, a copy of which has been included with this distribution in the
5    * LICENSE.txt file.
6    */
7   package org.mule.transport.service;
8   
9   import org.mule.api.registry.ServiceException;
10  import org.mule.api.registry.ServiceType;
11  import org.mule.api.transport.Connector;
12  import org.mule.config.i18n.CoreMessages;
13  import org.mule.transport.AbstractConnector;
14  import org.mule.util.PropertiesUtils;
15  import org.mule.util.SpiUtils;
16  
17  import java.util.Properties;
18  
19  /**
20   * Used to describe a Meta transport, one which only defines an endpoint, not a connector, receiver, dispatcher, etc
21   *
22   * @since 3.0.0
23   */
24  public class MetaTransportServiceDescriptor extends DefaultTransportServiceDescriptor
25  {
26      private String metaScheme;
27  
28      public MetaTransportServiceDescriptor(String metaScheme, String scheme, Properties props, ClassLoader classLoader) throws ServiceException
29      {
30          super(metaScheme, props, classLoader);
31          this.metaScheme = metaScheme;
32          Properties p = SpiUtils.findServiceDescriptor(ServiceType.TRANSPORT, scheme);
33          //Load any overrides for the for the endpoint scheme
34          if (p == null)
35          {
36              throw new ServiceException(CoreMessages.failedToCreate("transport: " + metaScheme + ":" + scheme));
37          }
38          Properties temp = new Properties();
39          PropertiesUtils.getPropertiesWithPrefix(props, scheme + ".", temp);
40          if (temp.size() > 0)
41          {
42              p.putAll(PropertiesUtils.removeNamespaces(temp));
43          }
44          setOverrides(p);
45      }
46  
47      /**
48       * Override the connector cration and register our Meta scheme with the connecotr so that the connector can
49       * be used when creating endpoints using this meta transport
50       *
51       * @return a transport connector matching the scheme of the descriptor with the meta scheme registered with the
52       *         connector
53       * @throws TransportServiceException if the connector cannot be created
54       */
55      @Override
56      public Connector createConnector() throws TransportServiceException
57      {
58          AbstractConnector c = (AbstractConnector) super.createConnector();
59          c.registerSupportedMetaProtocol(metaScheme);
60          return c;
61      }
62  }