Package org.apache.hadoop.gateway.filter.rewrite.api

Examples of org.apache.hadoop.gateway.filter.rewrite.api.UrlRewriteRuleDescriptor

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      assertThat( config.getRules().isEmpty(), is( true ) );

      reader = new StringReader( "<rules><rule></rule></rules>" );
      config = digester.parse( reader );
      assertThat( config.getRules().size(), is( 1 ) );
      UrlRewriteRuleDescriptor rule = config.getRules().get( 0 );
      assertThat( rule, notNullValue() );
      assertThat( rule.name(), nullValue() );
      assertThat( rule.pattern(), nullValue() );
      assertThat( rule.directions(), nullValue() );
      assertThat( rule.flow(), nullValue() );

      reader = new StringReader( "<rules><rule name=\"test-name\"></rule></rules>" );
      config = digester.parse( reader );
      assertThat( config.getRules().size(), is( 1 ) );
      rule = config.getRules().get( 0 );
      assertThat( rule, notNullValue() );
      assertThat( rule.name(), is( "test-name" ) );
      assertThat( rule.pattern(), nullValue() );
      assertThat( rule.directions(), nullValue() );
      assertThat( rule.flow(), nullValue() );

      reader = new StringReader( "<rules><rule pattern=\"test-pattern\"></rule></rules>" );
      config = digester.parse( reader );
      assertThat( config.getRules().size(), is( 1 ) );
      rule = config.getRules().get( 0 );
      assertThat( rule, notNullValue() );
      assertThat( rule.name(), nullValue() );
      assertThat( rule.pattern(), is( "test-pattern" ) );
      assertThat( rule.directions(), nullValue() );
      assertThat( rule.flow(), nullValue() );

      reader = new StringReader( "<rules><rule dir=\"request\"></rule></rules>" );
      config = digester.parse( reader );
      assertThat( config.getRules().size(), is( 1 ) );
      rule = config.getRules().get( 0 );
      assertThat( rule, notNullValue() );
      assertThat( rule.name(), nullValue() );
      assertThat( rule.pattern(), nullValue() );
      assertThat( rule.directions().size(), is( 1 ) );
      assertThat( rule.directions(), contains( UrlRewriter.Direction.IN ) );
      assertThat( rule.flow(), nullValue() );

      reader = new StringReader( "<rules><rule flow=\"all\"></rule></rules>" );
      config = digester.parse( reader );
      assertThat( config.getRules().size(), is( 1 ) );
      rule = config.getRules().get( 0 );
      assertThat( rule, notNullValue() );
      assertThat( rule.name(), nullValue() );
      assertThat( rule.pattern(), nullValue() );
      assertThat( rule.directions(), nullValue() );
      assertThat( rule.flow(), Matchers.is( UrlRewriteStepFlow.ALL ) );
    }
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    @Test
    public void testMatchParsing() throws IOException, SAXException {
      Reader reader;
      UrlRewriteRulesDescriptor config;
      UrlRewriteRuleDescriptor rule;
      UrlRewriteMatchDescriptorExt match;
      List<? extends UrlRewriteStepDescriptor> steps;

      reader = new StringReader( "<rules><rule><match></match></rule></rules>" );
      config = digester.parse( reader );
      assertThat( config, notNullValue() );
      assertThat( config.getRules(), notNullValue() );
      assertThat( config.getRules().size(), is( 1 ) );
      rule = config.getRules().get( 0 );
      assertThat( rule.steps(), notNullValue() );
      assertThat( rule.steps().size(), is( 1 ) );
      match = (UrlRewriteMatchDescriptorExt)rule.steps().get( 0 );
      assertThat( match, notNullValue() );
      //assertThat( match.type(), nullValue() );
      assertThat( match.operation(), nullValue() );
      assertThat( match.pattern(), nullValue() );
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    @Test
    public void testCheckParsing() throws IOException, SAXException {
      Reader reader;
      UrlRewriteRulesDescriptor config;
      UrlRewriteRuleDescriptor rule;
      List<UrlRewriteStepDescriptor> steps;
      UrlRewriteCheckDescriptorExt step;

      reader = new StringReader( "<rules><rule><check></check></rule></rules>" );
      config = digester.parse( reader );
      assertThat( config, notNullValue() );
      assertThat( config.getRules(), notNullValue() );
      assertThat( config.getRules().size(), is( 1 ) );
      rule = config.getRules().get( 0 );
      assertThat( rule.steps(), notNullValue() );
      assertThat( rule.steps().size(), is( 1 ) );
      step = (UrlRewriteCheckDescriptorExt)rule.steps().get( 0 );
      assertThat( step, notNullValue() );
      //assertThat( step.type(), nullValue() );
      assertThat( step.operation(), nullValue() );
      assertThat( step.input(), nullValue() );
      assertThat( step.value(), nullValue() );

      reader = new StringReader( "<rules><rule><check type=\"test-type\" op=\"test-op\" input=\"test-input\" value=\"test-value\"></check></rule></rules>" );
      config = digester.parse( reader );
      assertThat( config, notNullValue() );
      assertThat( config.getRules(), notNullValue() );
      assertThat( config.getRules().size(), is( 1 ) );
      rule = config.getRules().get( 0 );
      assertThat( rule.steps(), notNullValue() );
      assertThat( rule.steps().size(), is( 1 ) );
      step = (UrlRewriteCheckDescriptorExt)rule.steps().get( 0 );
      assertThat( step, notNullValue() );
      //assertThat( step.type(), is( "test-type" ) );
      assertThat( step.operation(), is( "test-op" ) );
      assertThat( step.input(), is( "test-input" ) );
      assertThat( step.value(), is( "test-value" ) );
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    @Test
    public void testActionParsing() throws IOException, SAXException {
      Reader reader;
      UrlRewriteRulesDescriptor config;
      UrlRewriteRuleDescriptor rule;
      UrlRewriteActionDescriptorBase step;

      reader = new StringReader( "<rules><rule><action></action></rule></rules>" );
      config = digester.parse( reader );
      assertThat( config, notNullValue() );
      assertThat( config.getRules(), notNullValue() );
      assertThat( config.getRules().size(), is( 1 ) );
      rule = config.getRules().get( 0 );
      assertThat( rule.steps(), notNullValue() );
      assertThat( rule.steps().size(), is( 1 ) );
      step = (UrlRewriteActionDescriptorBase)rule.steps().get( 0 );
      assertThat( step, notNullValue() );
      //assertThat( step.type(), nullValue() );
      assertThat( step.parameter(), nullValue() );

      reader = new StringReader( "<rules><rule><action type=\"test-type\" param=\"test-param\"></action></rule></rules>" );
      config = digester.parse( reader );
      assertThat( config, notNullValue() );
      assertThat( config.getRules(), notNullValue() );
      assertThat( config.getRules().size(), is( 1 ) );
      rule = config.getRules().get( 0 );
      assertThat( rule.steps(), notNullValue() );
      assertThat( rule.steps().size(), is( 1 ) );
      step = (UrlRewriteActionDescriptorBase)rule.steps().get( 0 );
      assertThat( step, notNullValue() );
      //assertThat( step.type(), is( "test-type" ) );
      assertThat( step.parameter(), is( "test-param" ) );
    }
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    @Test
    public void testControlParsing() throws IOException, SAXException {
      Reader reader;
      UrlRewriteRulesDescriptor config;
      UrlRewriteRuleDescriptor rule;
      List<UrlRewriteStepDescriptor> steps;

      reader = new StringReader( "<rules><rule><control></control></rule></rules>" );
      config = digester.parse( reader );
      assertThat( config, notNullValue() );
      assertThat( config.getRules(), notNullValue() );
      assertThat( config.getRules().size(), is( 1 ) );
      rule = config.getRules().get( 0 );
      assertThat( rule.steps(), notNullValue() );
      assertThat( rule.steps().size(), is( 1 ) );
      UrlRewriteControlDescriptor step = (UrlRewriteControlDescriptor)rule.steps().get( 0 );
      assertThat( step, notNullValue() );
      assertThat(  step.flow(), nullValue() );

      reader = new StringReader( "<rules><rule><control flow=\"or\"></control></rule></rules>" );
      config = digester.parse( reader );
      assertThat( config, notNullValue() );
      assertThat( config.getRules(), notNullValue() );
      assertThat( config.getRules().size(), is( 1 ) );
      rule = config.getRules().get( 0 );
      assertThat( rule.steps(), notNullValue() );
      assertThat( rule.steps().size(), is( 1 ) );
      step = (UrlRewriteControlDescriptor)rule.steps().get( 0 );
      assertThat( step, notNullValue() );
      assertThat( step.flow(), is( UrlRewriteStepFlow.OR ) );
    }
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    contributeResources( context, service );
  }

  private void contributeRewriteRules( DeploymentContext context, Service service ) throws URISyntaxException {
    UrlRewriteRulesDescriptor rules = context.getDescriptor( "rewrite" );
    UrlRewriteRuleDescriptor rule;
    UrlRewriteActionRewriteDescriptorExt rewrite;

    rule = rules.addRule( getRole() + "/" + getName() + "/inbound" )
        .directions( "inbound" )
        .pattern( "*://*:*/**" + EXTERNAL_PATH );
    rewrite = rule.addStep( "rewrite" );
    rewrite.template( service.getUrl() );
  }
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    contributeDataNodeResource( context, service );
  }

  private void contributeRewriteRules( DeploymentContext context, Service service ) throws URISyntaxException {
    UrlRewriteRulesDescriptor rules = context.getDescriptor( "rewrite" );
    UrlRewriteRuleDescriptor rule;
    UrlRewriteActionRewriteDescriptorExt rewrite;
    UrlRewriteMatchDescriptor match;

    rule = rules.addRule( getRole() + "/" + getName() + "/namenode/root/inbound" )
        .directions( "inbound" )
        .pattern( "*://*:*/**" + NAMENODE_EXTERNAL_PATH + "/?{**}" );
    rewrite = rule.addStep( "rewrite" );
    rewrite.template( service.getUrl().toExternalForm() + "/?{**}" );

    rule = rules.addRule( getRole() + "/" + getName() + "/namenode/file/inbound" )
        .directions( "inbound" )
        .pattern( "*://*:*/**" + NAMENODE_EXTERNAL_PATH + "/{path=**}?{**}" );
    rewrite = rule.addStep( "rewrite" );
    rewrite.template( service.getUrl().toExternalForm() + "/{path=**}?{**}" );

    rule = rules.addRule( getRole() + "/" + getName() + "/datanode/inbound" )
        .directions( "inbound" )
        .pattern( "*://*:*/**" + DATANODE_EXTERNAL_PATH + "/{path=**}?**" );
    //TODO: If the input type is wrong it throws a NPE.
    rule.addStep( "decode-query" );
    match = rule.addStep( "match" );
    match.pattern( "*://*:*/**" + DATANODE_EXTERNAL_PATH + "/{path=**}?{host}&{port}&{**}" );
    rewrite = rule.addStep( "rewrite" );
    rewrite.template( "http://{host}:{port}/{path=**}?{**}" );

    rule = rules.addRule( getRole() + "/" + getName() + "/datanode/outbound" )
        .directions( "outbound" )
        .pattern( "*://*:*/**?**" );
    match = rule.addStep( "match" );
    match.pattern( "*://{host}:{port}/{path=**}?{**}" );
    rewrite = rule.addStep( "rewrite" );
    rewrite.template( CLUSTER_URL_FUNCTION + DATANODE_EXTERNAL_PATH + "/{path=**}?{host}&{port}&{**}" );
    rule.addStep( "encode-query" );
  }
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  private class RuleFactory extends Rule {
    @Override
    public void begin( String namespace, String name, Attributes attributes ) throws Exception {
      Digester digester = getDigester();
      UrlRewriteRulesDescriptor rules = digester.peek();
      UrlRewriteRuleDescriptor rule = rules.newRule();
      getDigester().push( rule );
    }
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    }

    @Override
    public void end( String namespace, String name ) throws Exception {
      Digester digester = getDigester();
      UrlRewriteRuleDescriptor rule = digester.pop();
      UrlRewriteRulesDescriptor rules = digester.peek();
      rules.addRule( rule );
    }
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    return ruleList;
  }

  @Override
  public UrlRewriteRuleDescriptor addRule( String name ) {
    UrlRewriteRuleDescriptor rule = newRule();
    rule.name( name );
    addRule( rule );
    return rule;
  }
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