Package org.apache.hadoop.gateway.topology

Examples of org.apache.hadoop.gateway.topology.Topology

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  private Topology loadTopology(File file) throws IOException, SAXException, URISyntaxException, InterruptedException {
    final long TIMEOUT = 250; //ms
    final long DELAY = 50; //ms
    log.loadingTopologyFile(file.getAbsolutePath());
    Topology topology;
    long start = System.currentTimeMillis();
    while (true) {
      try {
        topology = loadTopologyAttempt(file);
        break;
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    }
    return topology;
  }

  private Topology loadTopologyAttempt(File file) throws IOException, SAXException, URISyntaxException {
    Topology topology;
    Digester digester = digesterLoader.newDigester();
    TopologyBuilder topologyBuilder = digester.parse(FileUtils.openInputStream(file));
    topology = topologyBuilder.build();
    topology.setUri(file.toURI());
    topology.setName(FilenameUtils.removeExtension(file.getName()));
    topology.setTimestamp(file.lastModified());
    return topology;
  }
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      }
    }
    // Go through the new topologies and figure out what was updated vs added.
    for (File file : newTopologies.keySet()) {
      if (oldTopologies.containsKey(file)) {
        Topology oldTopology = oldTopologies.get(file);
        Topology newTopology = newTopologies.get(file);
        if (newTopology.getTimestamp() > oldTopology.getTimestamp()) {
          events.add(new TopologyEvent(TopologyEvent.Type.UPDATED, newTopologies.get(file)));
        }
      } else {
        events.add(new TopologyEvent(TopologyEvent.Type.CREATED, newTopologies.get(file)));
      }
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    String name = "org/apache/hadoop/gateway/topology/xml/service-param-topology-ambari-format.conf";
    URL url = ClassLoader.getSystemResource( name );
    assertThat( "Failed to find URL for resource " + name, url, notNullValue() );
    File file = new File( url.getFile() );
    TopologyBuilder topologyBuilder = digester.parse( url );
    Topology topology = topologyBuilder.build();
    assertThat( "Failed to parse resource " + name, topology, notNullValue() );
    topology.setTimestamp( file.lastModified() );

    assertThat( topology.getName(), is( "test-topology-name" ) );
    assertThat( topology.getTimestamp(), is( file.lastModified() ) );

    assertThat( topology.getProviders().size(), is( 1 ) );
    Provider provider = topology.getProviders().iterator().next();
    assertThat( provider, notNullValue() );
    assertThat( provider.getRole(), is( "test-provider-role" ) );
    assertThat( provider.getName(), is( "test-provider-name" ) );
    assertThat( provider.isEnabled(), is( true ) );
    assertThat( provider.getParams(), hasEntry( is( "test-provider-param-name-1" ), is( "test-provider-param-value-1" ) ) );
    assertThat( provider.getParams(), hasEntry( is( "test-provider-param-name-2" ), is( "test-provider-param-value-2" ) ) );

    assertThat( topology.getServices().size(), is( 1 ) );
    Service service = topology.getServices().iterator().next();
    assertThat( service, notNullValue() );
    assertThat( service.getRole(), is( "test-service-role" ) );
    assertThat( service.getUrls().size(), is( 2 ) );
    assertThat( service.getUrls(), hasItem( "test-service-scheme://test-service-host1:42/test-service-path" ) );
    assertThat( service.getUrls(), hasItem( "test-service-scheme://test-service-host2:42/test-service-path" ) );
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  private static void contribute(
      DeploymentContext context,
      Map<String,List<ProviderDeploymentContributor>> providers,
      Map<String,List<ServiceDeploymentContributor>> services ) {
      Topology topology = context.getTopology();
    for( Provider provider : topology.getProviders() ) {
      ProviderDeploymentContributor contributor = getProviderContributor( providers, provider.getRole(), provider.getName() );
      if( contributor != null && provider.isEnabled() ) {
        try {
          contributor.contributeProvider( context, provider );
        } catch( Exception e ) {
          // Maybe it makes sense to throw exception
          log.failedToContributeProvider( provider.getName(), provider.getRole(), e );
          throw new DeploymentException("Failed to contribute provider.", e);
        }
      }
    }
    for( Service service : topology.getServices() ) {
      ServiceDeploymentContributor contributor = getServiceContributor( service.getRole(), null );
      if( contributor != null ) {
        try {
          contributor.contributeService( context, service );
          if (gatewayServices != null) {
            ServiceRegistry sr = (ServiceRegistry) gatewayServices.getService(GatewayServices.SERVICE_REGISTRY_SERVICE);
            if (sr != null) {
              String regCode = sr.getRegistrationCode(topology.getName());
              sr.registerService(regCode, topology.getName(), service.getRole(), service.getUrls() );
            }
          }
        } catch( Exception e ) {
          // Maybe it makes sense to throw exception
          log.failedToContributeService( service.getName(), service.getRole(), e );
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    @Override
    public void handleTopologyEvent( List<TopologyEvent> events ) {
      synchronized ( GatewayServer.this ) {
        for( TopologyEvent event : events ) {
          Topology topology = event.getTopology();
          File deployDir = calculateAbsoluteDeploymentsDir();
          if( event.getType().equals( TopologyEvent.Type.DELETED ) ) {
            handleDeleteDeployment(topology, deployDir);
          } else {
            handleCreateDeployment(topology, deployDir);
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    String name = "org/apache/hadoop/gateway/topology/xml/simple-topology-knox-format.xml";
    URL url = ClassLoader.getSystemResource( name );
    assertThat( "Failed to find URL for resource " + name, url, notNullValue() );
    File file = new File( url.getFile() );
    TopologyBuilder topologyBuilder = digester.parse( url );
    Topology topology = topologyBuilder.build();
    assertThat( "Failed to parse resource " + name, topology, notNullValue() );
    topology.setTimestamp( file.lastModified() );

    assertThat( topology.getName(), is( "topology" ) );
    assertThat( topology.getTimestamp(), is( file.lastModified() ) );
    assertThat( topology.getServices().size(), is( 1 ) );

    Service comp = topology.getServices().iterator().next();
    assertThat( comp, notNullValue() );
    assertThat( comp.getRole(), is( "WEBHDFS" ) );
    assertThat( comp.getUrls().size(), is( 2 ) );
    assertThat( comp.getUrls(), hasItem( "http://host1:80/webhdfs" ) );
    assertThat( comp.getUrls(), hasItem( "http://host2:80/webhdfs" ) );

    Provider provider = topology.getProviders().iterator().next();
    assertThat( provider, notNullValue() );
    assertThat( provider.isEnabled(), is(true) );
    assertThat( provider.getRole(), is( "authentication" ) );
    assertThat( provider.getParams().size(), is(5));
  }
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    String name = "org/apache/hadoop/gateway/topology/xml/service-param-topology-knox-format.xml";
    URL url = ClassLoader.getSystemResource( name );
    assertThat( "Failed to find URL for resource " + name, url, notNullValue() );
    File file = new File( url.getFile() );
    TopologyBuilder topologyBuilder = digester.parse( url );
    Topology topology = topologyBuilder.build();
    assertThat( "Failed to parse resource " + name, topology, notNullValue() );
    topology.setTimestamp( file.lastModified() );

    assertThat( topology.getName(), is( "test-topology-name" ) );
    assertThat( topology.getTimestamp(), is( file.lastModified() ) );
    assertThat( topology.getServices().size(), is( 1 ) );

    Provider provider = topology.getProviders().iterator().next();
    assertThat( provider, notNullValue() );
    assertThat( provider.getRole(), is( "test-provider-role" ) );
    assertThat( provider.getName(), is( "test-provider-name" ) );
    assertThat( provider.getParams(), hasEntry( is( "test-provider-param-name-1" ), is( "test-provider-param-value-1" ) ) );
    assertThat( provider.getParams(), hasEntry( is( "test-provider-param-name-2" ), is( "test-provider-param-value-2" ) ) );

    Service service = topology.getServices().iterator().next();
    assertThat( service, notNullValue() );
    assertThat( service.getRole(), is( "test-service-role" ) );
    assertThat( service.getUrls().size(), is( 2 ) );
    assertThat( service.getUrls(), hasItem( "test-service-scheme://test-service-host1:42/test-service-path" ) );
    assertThat( service.getUrls(), hasItem( "test-service-scheme://test-service-host2:42/test-service-path" ) );
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    String name = "org/apache/hadoop/gateway/topology/xml/simple-topology-ambari-format.conf";
    URL url = ClassLoader.getSystemResource( name );
    assertThat( "Failed to find URL for resource " + name, url, notNullValue() );
    File file = new File( url.getFile() );
    TopologyBuilder topologyBuilder = digester.parse( url );
    Topology topology = topologyBuilder.build();
    assertThat( "Failed to parse resource " + name, topology, notNullValue() );
    topology.setTimestamp( file.lastModified() );

    assertThat( topology.getName(), is( "topology2" ) );
    assertThat( topology.getTimestamp(), is( file.lastModified() ) );
    assertThat( topology.getServices().size(), is( 4 ) );
    assertThat( topology.getProviders().size(), is( 2 ) );

    Service webhdfsService = topology.getService( "WEBHDFS", null );
    assertThat( webhdfsService, notNullValue() );
    assertThat( webhdfsService.getRole(), is( "WEBHDFS" ) );
    assertThat( webhdfsService.getName(), nullValue() );
    assertThat( webhdfsService.getUrls().size(), is( 2 ) );
    assertThat( webhdfsService.getUrls(), hasItem( "http://host1:50070/webhdfs" ) );
    assertThat( webhdfsService.getUrls(), hasItem( "http://host2:50070/webhdfs" ) );

    Service webhcatService = topology.getService( "WEBHCAT", null );
    assertThat( webhcatService, notNullValue() );
    assertThat( webhcatService.getRole(), is( "WEBHCAT" ) );
    assertThat( webhcatService.getName(), nullValue() );
    assertThat( webhcatService.getUrls().size(), is( 1 ) );
    assertThat( webhcatService.getUrls(), hasItem( "http://host:50111/templeton" ) );

    Service oozieService = topology.getService( "OOZIE", null );
    assertThat( oozieService, notNullValue() );
    assertThat( oozieService.getRole(), is( "OOZIE" ) );
    assertThat( oozieService.getName(), nullValue() );
    assertThat( webhcatService.getUrls().size(), is( 1 ) );
    assertThat( oozieService.getUrls(), hasItem( "http://host:11000/oozie" ) );

    Service hiveService = topology.getService( "HIVE", null );
    assertThat( hiveService, notNullValue() );
    assertThat( hiveService.getRole(), is( "HIVE" ) );
    assertThat( hiveService.getName(), nullValue() );
    assertThat( webhcatService.getUrls().size(), is( 1 ) );
    assertThat( hiveService.getUrls(), hasItem( "http://host:10000" ) );

    Provider authenticationProvider = topology.getProvider( "authentication", "ShiroProvider" );
    assertThat( authenticationProvider, notNullValue() );
    assertThat( authenticationProvider.isEnabled(), is( true ) );
    assertThat( authenticationProvider.getRole(), is( "authentication" ) );
    assertThat( authenticationProvider.getName(), is( "ShiroProvider" ) );
    assertThat( authenticationProvider.getParams().size(), is( 5 ) );
    assertThat( authenticationProvider.getParams().get("main.ldapRealm.contextFactory.url"), is( "ldap://localhost:33389" ) );

    Provider identityAssertionProvider = topology.getProvider( "identity-assertion", "Default" );
    assertThat( identityAssertionProvider, notNullValue() );
    assertThat( identityAssertionProvider.isEnabled(), is( false ) );
    assertThat( identityAssertionProvider.getRole(), is( "identity-assertion" ) );
    assertThat( identityAssertionProvider.getName(), is( "Default" ) );
    assertThat( identityAssertionProvider.getParams().size(), is( 2 ) );
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        ContextResolver<JAXBContext> resolver = providers.getContextResolver(JAXBContext.class, mediaType);
        JAXBContext context = resolver.getContext(type);
        InputStream is = entityStream;
        Unmarshaller u = context.createUnmarshaller();
        u.setProperty(UnmarshallerProperties.MEDIA_TYPE, mediaType.getType() + "/" + mediaType.getSubtype());
        Topology topology = (Topology)u.unmarshal(is);
        return topology;
      }
    } catch (JAXBException e) {
      throw new IOException(e);
    }
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Related Classes of org.apache.hadoop.gateway.topology.Topology

  • org.apache.hadoop.gateway.deploy.DeploymentFactory
  • org.apache.hadoop.gateway.deploy.DeploymentFactoryFuncTest
  • org.apache.hadoop.gateway.deploy.DeploymentFactoryTest
  • org.apache.hadoop.gateway.deploy.impl.ShiroDeploymentContributorTest
  • org.apache.hadoop.gateway.encrypturi.impl.EncryptUriDeploymentContributorTest
  • org.apache.hadoop.gateway.GatewayAdminTopologyFuncTest
  • org.apache.hadoop.gateway.GatewayServer$InternalTopologyListener
  • org.apache.hadoop.gateway.jersey.JerseyDeploymentContributorTest
  • org.apache.hadoop.gateway.securequery.SecureQueryDeploymentContributorTest
  • org.apache.hadoop.gateway.service.admin.TopologyMarshaller
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