Examples of org.openquark.cal.runtime.ExecutionContext

org.openquark.cal.runtime.ExecutionContext
Provides an environment in which the execution of a CAL function occurs. One of the most important tasks of an execution context is to provide a key to the set of constant applicative form (CAF) values that are in use for the given execution.
In general, a single ExecutionContext object can be used by only 1 thread at a time. It is OK however for a thread to run a program using an execution context, and then when that run is completed for another thread to use the same execution context to run another program. This provides the ability to share CAF values between multiple executions, even if the further executions are on another thread.
Similarly the state of the execution context cannot be altered by one thread (e.g. changing a debugging flag, etc.) while another thread is using the execution context to run a program.
The execution context is also a holder for debugging status flags that are dependent on an execution.
The execution context holds onto an immutable set of properties which is specified by client code on construction of the execution context, and can be accessed from within CAL. Some well-known properties are defined by the platform (e.g. the current locale).
The execution context can also be used to interrupt an executing CAL program without affecting other concurrently executing CAL programs. @author Bo Ilic

        CompilerMessageLogger messageLogger = new MessageLogger();
        if (!calServices.compileWorkspace(null, messageLogger)) {
            System.err.println(messageLogger.toString());
        }


        final ExecutionContext executionContext = calServices.getWorkspaceManager().makeExecutionContextWithDefaultProperties();


        WorkspaceManager workspaceManager = calServices.getWorkspaceManager();
        Compiler compiler = calServices.getCompiler();
        optimizer_entryPoint = compiler.getEntryPoint(
                EntryPointSpec.make(CAL_Optimizer_internal.Functions.optimize),

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                CALPlatformTestModuleNames.RuntimeRegression, messageLogger);
            if (messageLogger.getNMessages() > 0) {
                System.err.println(messageLogger.toString());
            }


            final ExecutionContext executionContext = leccCALServices.getWorkspaceManager().makeExecutionContextWithDefaultProperties();


            CALExecutor executor = workspaceManager.makeExecutor(executionContext);
            try {
                Object result = executor.exec(entryPoint, new Object[] { new Integer(1), new Integer(2)});
                assertTrue(((Integer)result).intValue() == 6);

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                CALPlatformTestModuleNames.RuntimeRegression, messageLogger);
            if (messageLogger.getNMessages() > 0) {
                System.err.println(messageLogger.toString());
            }


            final ExecutionContext executionContext = gCALServices.getWorkspaceManager().makeExecutionContextWithDefaultProperties();


            CALExecutor executor = workspaceManager.makeExecutor(executionContext);
            try {
                Object result = executor.exec(entryPoint, new Object[] { new Integer(1), new Integer(2)});
                assertTrue(((Integer)result).intValue() == 6);

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    private void help_testGetProperty(BasicCALServices calServices, String propKey, Object propValue) throws CALExecutorException, GemCompilationException {
        
        ExecutionContextProperties.Builder propBuilder = new ExecutionContextProperties.Builder();
        propBuilder.setProperty(propKey, propValue);
        ExecutionContextProperties properties = propBuilder.toProperties();
        ExecutionContext ec = calServices.getWorkspaceManager().makeExecutionContext(properties);
        
        assertSame(propValue, calServices.runFunction(EntryPointSpec.make(CAL_System.Functions.getProperty), ec, new Object[] { propKey }));
        
        assertEquals(Boolean.TRUE, calServices.runFunction(EntryPointSpec.make(CAL_System.Functions.hasProperty), ec, new Object[] { propKey }));

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    private void help_testCurrentLocale(BasicCALServices calServices, Locale locale) throws CALExecutorException, GemCompilationException {
        ExecutionContextProperties.Builder propBuilder = new ExecutionContextProperties.Builder();
        propBuilder.setLocale(locale);
        ExecutionContextProperties properties = propBuilder.toProperties();
        ExecutionContext ec = calServices.getWorkspaceManager().makeExecutionContext(properties);
        
        assertSame(locale, calServices.runFunction(EntryPointSpec.make(CAL_System.Functions.getProperty), ec, new Object[] { ExecutionContextProperties.SYS_PROP_KEY_LOCALE }));
    }

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    private void help_testCurrentTimeZone(BasicCALServices calServices, TimeZone timeZone) throws CALExecutorException, GemCompilationException {        
        ExecutionContextProperties.Builder propBuilder = new ExecutionContextProperties.Builder();
        propBuilder.setTimeZone(timeZone.getID());
        ExecutionContextProperties properties = propBuilder.toProperties();
        ExecutionContext ec = calServices.getWorkspaceManager().makeExecutionContext(properties);
        
        final java.util.TimeZone propertyValue = (java.util.TimeZone)calServices.runFunction(EntryPointSpec.make(CAL_System.Functions.getProperty), ec, new Object[] {ExecutionContextProperties.SYS_PROP_KEY_TIMEZONE});
        assertEquals(timeZone, TimeZone.getInstance(propertyValue.getID()));
    }

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        TestCleanable hook = new TestCleanable();
        
        ExecutionContextProperties.Builder propBuilder = new ExecutionContextProperties.Builder();
        propBuilder.setProperty("hook", hook);
        ExecutionContextProperties properties = propBuilder.toProperties();
        ExecutionContext executionContext = calServices.getWorkspaceManager().makeExecutionContext(properties);
        
        EntryPoint entryPoint = calServices.getCompiler().getEntryPoint(
            new AdjunctSource.FromText("private tempFunc = System.registerCleanable ((input (System.getProperty \"hook\")) :: Cleanable);"), 
            EntryPointSpec.make(QualifiedName.make(CAL_System.MODULE_NAME, "tempFunc")), 
            CAL_System.MODULE_NAME,

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    private static final TypeExprDefn STRING_TYPE = TypeExprDefn.TypeCons.make(CAL_Prelude.TypeConstructors.String);
    private static final TypeExprDefn STRING_LIST_TYPE = TypeExprDefn.List.make(STRING_TYPE);
    
    public void testTouchesThenRuns() throws CALExecutorException, GemCompilationException {
        // Touch the List.head() function
        final ExecutionContext executionContext = calServices.getWorkspaceManager().makeExecutionContextWithDefaultProperties();


        EntryPointSpec headString = EntryPointSpec.make(CAL_List.Functions.head, 
                OutputPolicy.makeTypedDefaultOutputPolicy(STRING_TYPE));
        entryPointCache.cacheEntryPoints(Collections.singletonList(headString));

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        final EntryPointSpec headString = EntryPointSpec.make(CAL_List.Functions.head, 
                OutputPolicy.makeTypedDefaultOutputPolicy(STRING_TYPE));


        // Create many threads that will use the same entry point - the first should
        // safely compile the adjunct and the rest should use it without compiling again
        final ExecutionContext executionContext = calServices.getWorkspaceManager().makeExecutionContextWithDefaultProperties();
        Runnable functionCallRunnable = new Runnable() {
            public void run() {
                try {
                    assertEquals("one", entryPointCache.runFunction(headString, new Object[] { TEST_LIST }, executionContext));
                } catch (CALExecutorException e) {

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                OutputPolicy.makeTypedDefaultOutputPolicy(STRING_LIST_TYPE));
        final EntryPointSpec lengthString = EntryPointSpec.make(CAL_List.Functions.length, 
                new InputPolicy[] { InputPolicy.makeTypedDefaultInputPolicy(STRING_LIST_TYPE)},
                OutputPolicy.DEFAULT_OUTPUT_POLICY);
        
        final ExecutionContext executionContext = calServices.getWorkspaceManager().makeExecutionContextWithDefaultProperties();


        // Use a status listener to assert that the List adjunct module is only compiled twice
        calServices.getWorkspaceManager().addStatusListener(listCompilationListener);
        allowedListCompilations++;

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Related Classes of org.openquark.cal.runtime.ExecutionContext

org.openquark.cal.compiler.Optimizer_Test

org.openquark.cal.compiler.Packager

org.openquark.cal.machine.ExecutionContext_Test

org.openquark.cal.machine.ExecutionContextProperties_Test

org.openquark.cal.machine.RuntimeRegression_Test

org.openquark.cal.services.BasicCALServices

org.openquark.cal.services.EntryPointCache_Test

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