Examples with MemoryClassLoader org.finos.legend.pure.runtime.java.compiled.compiler.MemoryClassLoader used on opensource projects

Example 1 with MemoryClassLoader

use of org.finos.legend.pure.runtime.java.compiled.compiler.MemoryClassLoader in project legend-pure by finos.

the class CompiledSupport method dynamicallyEvaluateValueSpecification.

public static Object dynamicallyEvaluateValueSpecification(final CoreInstance valueSpecification, PureMap lambdaOpenVariablesMap, ExecutionSupport es) {
    MemoryFileManager fileManager = ((CompiledExecutionSupport) es).getMemoryFileManager();
    ClassLoader globalClassLoader = ((CompiledExecutionSupport) es).getClassLoader();
    final CompiledProcessorSupport compiledSupport = new CompiledProcessorSupport(globalClassLoader, ((CompiledExecutionSupport) es).getMetadata(), ((CompiledExecutionSupport) es).getExtraSupportedTypes());
    final ProcessorContext processorContext = new ProcessorContext(compiledSupport);
    // Don't do anything if the ValueSpecification is already resolved ----------------
    if (Instance.instanceOf(valueSpecification, M3Paths.InstanceValue, processorContext.getSupport())) {
        ListIterable<? extends CoreInstance> l = valueSpecification.getValueForMetaPropertyToMany(M3Properties.values);
        if (l.noneSatisfy(instance -> Instance.instanceOf(instance, M3Paths.ValueSpecification, processorContext.getSupport()) || Instance.instanceOf(instance, M3Paths.LambdaFunction, processorContext.getSupport()))) {
            ListIterable<Object> result = l.collect(instance -> instance instanceof ValCoreInstance ? ((ValCoreInstance) instance).getValue() : instance);
            return result.size() == 1 ? result.get(0) : result;
        }
    }
    // ---------------------------------------------------------------------------------
    processorContext.setInLineAllLambda(true);
    String processed = ValueSpecificationProcessor.processValueSpecification(valueSpecification, true, processorContext);
    String returnType = TypeProcessor.typeToJavaObjectWithMul(valueSpecification.getValueForMetaPropertyToOne(M3Properties.genericType), valueSpecification.getValueForMetaPropertyToOne(M3Properties.multiplicity), false, compiledSupport);
    String name = "DynaClass";
    RichIterable<Pair<String, CoreInstance>> values = lambdaOpenVariablesMap.getMap().keyValuesView();
    final MutableMap<String, Object> openVars = Maps.mutable.of();
    String _class = JavaSourceCodeGenerator.imports + "\npublic class " + name + "{\n" + "   public static " + returnType + " doProcess(final MapIterable<String, Object> vars, final MutableMap<String, Object> valMap, final IntObjectMap<CoreInstance> localLambdas, final ExecutionSupport es){\n" + values.collect(new Function<Pair<String, CoreInstance>, String>() {

        @Override
        public String valueOf(Pair<String, CoreInstance> pair) {
            final String name = pair.getOne();
            CoreInstance valuesCoreInstance = pair.getTwo();
            ListIterable<? extends CoreInstance> values = valuesCoreInstance.getValueForMetaPropertyToMany(M3Properties.values).select(coreInstance -> !Instance.instanceOf(coreInstance, "meta::pure::executionPlan::PlanVarPlaceHolder", compiledSupport) && !Instance.instanceOf(coreInstance, "meta::pure::executionPlan::PlanVariablePlaceHolder", compiledSupport));
            String type = null;
            openVars.put(name, valuesCoreInstance);
            if (values.isEmpty()) {
                MutableList<CoreInstance> vars = FastList.newList();
                collectVars(valueSpecification, vars, compiledSupport);
                CoreInstance found = vars.detect(coreInstance -> coreInstance.getValueForMetaPropertyToOne("name").getName().equals(name));
                if (found != null) {
                    type = TypeProcessor.typeToJavaObjectSingle(found.getValueForMetaPropertyToOne(M3Properties.genericType), false, compiledSupport);
                    return "      final  " + type + "  _" + name + " = null;";
                }
                return "";
            } else {
                type = TypeProcessor.pureRawTypeToJava(compiledSupport.getClassifier(values.getFirst()), false, compiledSupport);
                final String listImpl = JavaPackageAndImportBuilder.buildImplClassReferenceFromUserPath(M3Paths.List);
                return (values.size() == 1) ? ("      final " + type + " _" + name + " = (" + type + ")((" + listImpl + ")vars.get(\"" + name + "\"))._values.getFirst();") : ("      final RichIterable<" + type + "> _" + name + " = ((" + listImpl + ")vars.get(\"" + name + "\"))._values;");
            }
        }
    }).makeString("\n") + "       return " + processed + ";\n" + "   }\n" + "}\n";
    String javaPackage = JavaPackageAndImportBuilder.buildPackageForPackageableElement(valueSpecification);
    ListIterable<StringJavaSource> javaClasses = Lists.immutable.with(StringJavaSource.newStringJavaSource(javaPackage, name, _class));
    JavaCompiler compiler = ToolProvider.getSystemJavaCompiler();
    MemoryFileManager manager = new MemoryFileManager(compiler, fileManager, null);
    try {
        PureJavaCompiler.compile(compiler, javaClasses, manager);
    } catch (Exception e) {
        StringBuilder message = new StringBuilder("Error dynamically evaluating value specification");
        SourceInformation valueSpecSourceInfo = valueSpecification.getSourceInformation();
        if (valueSpecSourceInfo != null) {
            valueSpecSourceInfo.appendMessage(message.append(" (from ")).append(')');
        }
        message.append("; error compiling generated Java code:\n").append(_class);
        throw new RuntimeException(message.toString(), e);
    }
    ClassLoader cl = new MemoryClassLoader(manager, globalClassLoader);
    try {
        Class<?> realClass = cl.loadClass(javaPackage + "." + name);
        return realClass.getMethod("doProcess", MapIterable.class, MutableMap.class, IntObjectMap.class, ExecutionSupport.class).invoke(null, openVars, processorContext.getObjectToPassToDynamicallyGeneratedCode(), processorContext.getLocalLambdas(), es);
    } catch (Exception e) {
        StringBuilder message = new StringBuilder("Error dynamically evaluating value specification");
        SourceInformation valueSpecSourceInfo = valueSpecification.getSourceInformation();
        if (valueSpecSourceInfo != null) {
            valueSpecSourceInfo.appendMessage(message.append(" (from ")).append(')');
        }
        String errorMessage = e.getMessage();
        if (errorMessage != null) {
            message.append(": ").append(errorMessage);
        }
        throw new RuntimeException(message.toString(), e);
    }
}

Example 2 with MemoryClassLoader

use of org.finos.legend.pure.runtime.java.compiled.compiler.MemoryClassLoader in project legend-pure by finos.

the class CompiledSupport method dynamicallyBuildLambdaFunction.

public static Object dynamicallyBuildLambdaFunction(CoreInstance lambdaFunction, ExecutionSupport es) {
    ClassLoader globalClassLoader = ((CompiledExecutionSupport) es).getClassLoader();
    CompiledProcessorSupport compiledSupport = new CompiledProcessorSupport(globalClassLoader, ((CompiledExecutionSupport) es).getMetadata(), ((CompiledExecutionSupport) es).getExtraSupportedTypes());
    ProcessorContext processorContext = new ProcessorContext(compiledSupport);
    processorContext.setInLineAllLambda(true);
    String name = "DynamicLambdaGeneration";
    String _class = JavaSourceCodeGenerator.imports + "\nimport " + JavaPackageAndImportBuilder.rootPackage() + ".*;\npublic class " + name + "{" + "   public static PureCompiledLambda build(final MutableMap<String, Object> valMap, final IntObjectMap<CoreInstance> localLambdas){\n" + "return " + ValueSpecificationProcessor.processLambda(null, lambdaFunction, compiledSupport, processorContext) + ";" + "}" + "}";
    MemoryFileManager fileManager = ((CompiledExecutionSupport) es).getMemoryFileManager();
    MutableList<StringJavaSource> javaClasses = FastList.newList();
    javaClasses.add(StringJavaSource.newStringJavaSource("temp", name, _class));
    JavaCompiler compiler = ToolProvider.getSystemJavaCompiler();
    MemoryFileManager manager = new MemoryFileManager(compiler, fileManager, null);
    try {
        PureJavaCompiler.compile(compiler, javaClasses, manager);
    } catch (PureJavaCompileException e) {
        throw new RuntimeException(e);
    }
    ClassLoader cl = new MemoryClassLoader(manager, globalClassLoader);
    try {
        Class<?> realClass = cl.loadClass("temp" + "." + name);
        return realClass.getMethod("build", MutableMap.class, IntObjectMap.class).invoke(null, processorContext.getObjectToPassToDynamicallyGeneratedCode(), processorContext.getLocalLambdas());
    } catch (Exception e) {
        throw new RuntimeException(e);
    }
}

Example 3 with MemoryClassLoader

use of org.finos.legend.pure.runtime.java.compiled.compiler.MemoryClassLoader in project legend-pure by finos.

the class FunctionExecutionCompiled method initializedFromCache.

@Override
public void initializedFromCache() {
    if (getRuntime().getCache() instanceof PreCompiledPureGraphCache) {
        PreCompiledPureGraphCache graphCache = (PreCompiledPureGraphCache) getRuntime().getCache();
        MemoryClassLoader classLoader = this.javaCompilerEventHandler.getJavaCompiler().getCoreClassLoader();
        graphCache.prepareClassLoader(classLoader);
        this.metadataCompilerEventHandler.buildFullMetadata();
    } else {
        initializeFromRuntimeState();
    }
}

Example 4 with MemoryClassLoader

use of org.finos.legend.pure.runtime.java.compiled.compiler.MemoryClassLoader in project legend-sdlc by finos.

the class TestServiceExecutionClassGenerator method compileGeneratedJavaClass.

private Class<?> compileGeneratedJavaClass(ServiceExecutionClassGenerator.GeneratedJavaClass generatedJavaClass) throws ClassNotFoundException {
    // System.out.format("%s%n-------------------------%n%s%n", generatedJavaClass.getName(), generatedJavaClass.getCode());
    JavaCompiler compiler = ToolProvider.getSystemJavaCompiler();
    DiagnosticCollector<JavaFileObject> diagnosticCollector = new DiagnosticCollector<>();
    MemoryFileManager fileManager = new MemoryFileManager(compiler);
    JavaCompiler.CompilationTask task = compiler.getTask(null, fileManager, diagnosticCollector, Arrays.asList("-classpath", CLASSPATH), null, Collections.singletonList(new GeneratedJavaFileObject(generatedJavaClass)));
    if (!task.call()) {
        Assert.fail(diagnosticCollector.getDiagnostics().toString());
    }
    return new MemoryClassLoader(fileManager, Thread.currentThread().getContextClassLoader()).loadClass(generatedJavaClass.getName());
}