Examples of org.teiid.query.util.CommandContext

org.teiid.query.util.CommandContext
Defines the context that a command is processing in. For example, this defines who is processing the command and why. Also, this class (or subclasses) provide a means to pass context-specific information between users of the query processor framework.

    @Test public void testInvokeNull1() throws Exception {
        helpInvokeMethod(SourceSystemFunctions.CONCAT, new Class<?>[] {DataTypeManager.DefaultDataClasses.STRING, DataTypeManager.DefaultDataClasses.STRING}, new Object[] { null, String.valueOf(1) }, null, null);  
    }  
    
  @Test public void testInvokeXslTransform() throws Exception {
        CommandContext c = new CommandContext();
        c.setBufferManager(BufferManagerFactory.getStandaloneBufferManager());
        ClobType result = (ClobType)helpInvokeMethod("xsltransform", new Class<?>[] {DataTypeManager.DefaultDataClasses.XML, DataTypeManager.DefaultDataClasses.XML}, 
            new Object[] {DataTypeManager.transformValue("<?xml version=\"1.0\" encoding=\"UTF-8\"?><Catalogs xmlns:xsi=\"http://www.w3.org/2001/XMLSchema-instance\"><Catalog><Items><Item ItemID=\"001\"><Name>Lamp</Name><Quantity>5</Quantity></Item></Items></Catalog></Catalogs>", DataTypeManager.DefaultDataClasses.XML), 
            DataTypeManager.transformValue("<?xml version=\"1.0\" encoding=\"UTF-8\"?><xsl:stylesheet version=\"1.0\" xmlns:xsl=\"http://www.w3.org/1999/XSL/Transform\"><xsl:template match=\"@*|node()\"><xsl:copy><xsl:apply-templates select=\"@*|node()\"/></xsl:copy></xsl:template><xsl:template match=\"Quantity\"/></xsl:stylesheet>", DataTypeManager.DefaultDataClasses.XML)}, c);
        
        String xml = ObjectConverterUtil.convertToString(result.getCharacterStream());

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        String xml = ObjectConverterUtil.convertToString(result.getCharacterStream());
        assertEquals("<?xml version=\"1.0\" encoding=\"UTF-8\"?><Catalogs xmlns:xsi=\"http://www.w3.org/2001/XMLSchema-instance\"><Catalog><Items><Item ItemID=\"001\"><Name>Lamp</Name></Item></Items></Catalog></Catalogs>", xml);
    }
  
  @Test public void testInvokeXmlConcat() throws Exception {
        CommandContext c = new CommandContext();
        c.setBufferManager(BufferManagerFactory.getStandaloneBufferManager());
        XMLType result = (XMLType)helpInvokeMethod("xmlconcat", new Class<?>[] {DataTypeManager.DefaultDataClasses.XML, DataTypeManager.DefaultDataClasses.XML}, 
            new Object[] {DataTypeManager.transformValue("<bar/>", DataTypeManager.DefaultDataClasses.XML), DataTypeManager.transformValue("<Catalogs xmlns:xsi=\"http://www.w3.org/2001/XMLSchema-instance\"><Catalog><Items><Item ItemID=\"001\"><Name>Lamp</Name><Quantity>5</Quantity></Item></Items></Catalog></Catalogs>", DataTypeManager.DefaultDataClasses.XML)}, c);
        
        String xml = ObjectConverterUtil.convertToString(result.getCharacterStream());
        assertEquals("<bar/><Catalogs xmlns:xsi=\"http://www.w3.org/2001/XMLSchema-instance\"><Catalog><Items><Item ItemID=\"001\"><Name>Lamp</Name><Quantity>5</Quantity></Item></Items></Catalog></Catalogs>", xml);

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        String xml = ObjectConverterUtil.convertToString(result.getCharacterStream());
        assertEquals("<bar/><Catalogs xmlns:xsi=\"http://www.w3.org/2001/XMLSchema-instance\"><Catalog><Items><Item ItemID=\"001\"><Name>Lamp</Name><Quantity>5</Quantity></Item></Items></Catalog></Catalogs>", xml);
    }
  
  @Test public void testInvokeXmlComment() throws Exception {
        CommandContext c = new CommandContext();
        c.setBufferManager(BufferManagerFactory.getStandaloneBufferManager());
        XMLType result = (XMLType)helpInvokeMethod("xmlcomment", new Class<?>[] {DataTypeManager.DefaultDataClasses.STRING}, 
            new Object[] {"comment"}, c);
        
        String xml = ObjectConverterUtil.convertToString(result.getCharacterStream());
        assertEquals("<!--comment-->", xml);

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  private void helpTestWithValueIterator(ScalarSubquery expr,
      List<?> values, Object expected)
      throws BlockedException,
      TeiidComponentException, ExpressionEvaluationException {
    final CollectionValueIterator valueIter = new CollectionValueIterator(values);
        CommandContext cc = new CommandContext();
        assertEquals(expected, new Evaluator(Collections.emptyMap(), null, cc) {
          @Override
          protected ValueIterator evaluateSubquery(
              SubqueryContainer container, List tuple)
              throws TeiidProcessingException, BlockedException,

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        Function func = new Function("user", new Expression[] {}); //$NON-NLS-1$
        FunctionDescriptor desc = FakeMetadataFactory.SFM.getSystemFunctionLibrary().findFunction("user", new Class[] {} );         //$NON-NLS-1$
        func.setFunctionDescriptor(desc);


        FakeDataManager dataMgr = new FakeDataManager();
        CommandContext context = new CommandContext(new Long(1), null, null, null, 0);
        context.setUserName("logon");  //$NON-NLS-1$
        assertEquals(context.getUserName(), new Evaluator(Collections.emptyMap(), dataMgr, context).evaluate(func, Collections.emptyList()) );       
    }

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        FakeDataManager dataMgr = new FakeDataManager();
        
        Properties props = new Properties();
        props.setProperty("http_host", "testHostName"); //$NON-NLS-1$ //$NON-NLS-2$
        props.setProperty("http_port", "8000"); //$NON-NLS-1$ //$NON-NLS-2$
        CommandContext context = new CommandContext(new Long(1), null, null, null, null, 0, props, false);
        
        func.setArgs(new Expression[] {new Constant("http_host")}); //$NON-NLS-1$
        assertEquals("testHostName", new Evaluator(Collections.emptyMap(), dataMgr, context).evaluate(func, Collections.emptyList())); //$NON-NLS-1$
               
        func.setArgs(new Expression[] {new Constant("http_port")}); //$NON-NLS-1$

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        }        
        FunctionDescriptor desc = FakeMetadataFactory.SFM.getSystemFunctionLibrary().findFunction("commandpayload", parameterSignature );         //$NON-NLS-1$
        func.setFunctionDescriptor(desc);
        
        FakeDataManager dataMgr = new FakeDataManager();       
        CommandContext context = new CommandContext(new Long(-1), null, "user", payload, "vdb", 1, null, false); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ 


        if(property != null) {
            func.setArgs(new Expression[] {new Constant(property)}); 
        }
        String actual = (String) new Evaluator(Collections.emptyMap(), dataMgr, context).evaluate(func, Collections.emptyList());

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    @Test public void testPushAcrossFrameWithAccessNode() throws Exception {
      QueryMetadataInterface metadata = new TempMetadataAdapter(FakeMetadataFactory.example1Cached(), new TempMetadataStore());
      Command command = TestOptimizer.helpGetCommand("select * from (select * from pm1.g1 union select * from pm1.g2) x where e1 = 1", metadata, null); //$NON-NLS-1$
      Command subCommand = TestOptimizer.helpGetCommand("select * from pm1.g1 union select * from pm1.g2", metadata, null); //$NON-NLS-1$
      RelationalPlanner p = new RelationalPlanner();
      CommandContext cc = new CommandContext();
      p.initialize(command, null, metadata, null, null, cc);
      PlanNode root = p.generatePlan(command);
      PlanNode child = p.generatePlan(subCommand);
      PlanNode sourceNode = NodeEditor.findNodePreOrder(root, NodeConstants.Types.SOURCE);
      sourceNode.addFirstChild(child);

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        QueryMetadataInterface metadata = RealMetadataFactory.exampleMaterializedView();
        AnalysisRecord analysis = new AnalysisRecord(true, DEBUG);
        
        Command command = helpGetCommand(userSql, metadata, null);
        CommandContext cc = new CommandContext();
        cc.setGlobalTableStore(new TempTableStore("SYSTEM"));
        ProcessorPlan plan = TestOptimizer.getPlan(command, metadata, getGenericFinder(), analysis, true, cc);
        TestOptimizer.checkAtomicQueries(new String[] {"SELECT #MAT_MATVIEW.VGROUP2.x FROM #MAT_MATVIEW.VGROUP2"}, plan);
        Collection<Annotation> annotations = analysis.getAnnotations();
        assertNotNull("Expected annotations but got none", annotations); //$NON-NLS-1$
        assertEquals("Expected one annotation", 1, annotations.size()); //$NON-NLS-1$

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        QueryMetadataInterface metadata = RealMetadataFactory.exampleMaterializedView();
        AnalysisRecord analysis = new AnalysisRecord(true, DEBUG);
        
        Command command = helpGetCommand(userSql, metadata, null);
        CommandContext cc = new CommandContext();
        cc.setGlobalTableStore(new TempTableStore("SYSTEM"));
        RelationalPlan plan = (RelationalPlan)TestOptimizer.getPlan(command, metadata, getGenericFinder(), analysis, true, cc);
        assertEquals(1f, plan.getRootNode().getEstimateNodeCardinality());
        TestOptimizer.checkAtomicQueries(new String[] {"SELECT #MAT_MATVIEW.VGROUP3.x, #MAT_MATVIEW.VGROUP3.y FROM #MAT_MATVIEW.VGROUP3 WHERE #MAT_MATVIEW.VGROUP3.x = 'foo'"}, plan);
        Collection<Annotation> annotations = analysis.getAnnotations();
        assertNotNull("Expected annotations but got none", annotations); //$NON-NLS-1$

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Related Classes of org.teiid.query.util.CommandContext

org.teiid.dqp.internal.process.BaseQueryTest

org.teiid.dqp.internal.process.multisource.TestMultiSourcePlanToProcessConverter

org.teiid.dqp.internal.process.PreparedPlan

org.teiid.dqp.internal.process.QueryProcessorFactoryImpl

org.teiid.dqp.internal.process.Request

org.teiid.dqp.internal.process.SessionAwareCache.CacheID

org.teiid.dqp.internal.process.TestCachedResults

org.teiid.dqp.internal.process.TestDataTierManager

org.teiid.dqp.internal.process.TestPreparedPlanCache

org.teiid.metadata.FunctionMethod.Determinism

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