Examples with Statement com.google.api.generator.engine.ast.Statement used on opensource projects

Example 26 with Statement

use of com.google.api.generator.engine.ast.Statement in project gapic-generator-java by googleapis.

the class ServiceClientMethodSampleComposer method composeEmptyServiceSample.

// Creates an example for an empty service (no API methods), which is a corner case but can
// happen. Generated example will only show how to instantiate the client class but will not call
// any API methods (because there are no API methods).
public static Sample composeEmptyServiceSample(TypeNode clientType) {
    VariableExpr clientVarExpr = VariableExpr.withVariable(Variable.builder().setName(JavaStyle.toLowerCamelCase(clientType.reference().name())).setType(clientType).build());
    List<Statement> bodyStatements = new ArrayList<>();
    RegionTag regionTag = RegionTag.builder().setServiceName(clientVarExpr.variable().identifier().name()).setRpcName("emtpy").build();
    List<Statement> body = Arrays.asList(TryCatchStatement.builder().setTryResourceExpr(SampleComposerUtil.assignClientVariableWithCreateMethodExpr(clientVarExpr)).setTryBody(bodyStatements).setIsSampleCode(true).build());
    return Sample.builder().setBody(body).setRegionTag(regionTag).setIsCanonical(true).build();
}

Example 27 with Statement

use of com.google.api.generator.engine.ast.Statement in project gapic-generator-java by googleapis.

the class ServiceClientMethodSampleComposer method composeCanonicalSample.

public static Sample composeCanonicalSample(Method method, TypeNode clientType, Map<String, ResourceName> resourceNames, Map<String, Message> messageTypes) {
    VariableExpr clientVarExpr = VariableExpr.withVariable(Variable.builder().setName(JavaStyle.toLowerCamelCase(clientType.reference().name())).setType(clientType).build());
    // Create request variable expression and assign with its default value.
    VariableExpr requestVarExpr = VariableExpr.withVariable(Variable.builder().setName("request").setType(method.inputType()).build());
    List<VariableExpr> rpcMethodArgVarExprs = Arrays.asList(requestVarExpr);
    Message requestMessage = messageTypes.get(method.inputType().reference().fullName());
    Preconditions.checkNotNull(requestMessage, String.format("Could not find the message type %s.", method.inputType().reference().fullName()));
    Expr requestBuilderExpr = DefaultValueComposer.createSimpleMessageBuilderValue(requestMessage, resourceNames, messageTypes);
    AssignmentExpr requestAssignmentExpr = AssignmentExpr.builder().setVariableExpr(requestVarExpr.toBuilder().setIsDecl(true).build()).setValueExpr(requestBuilderExpr).build();
    List<Expr> bodyExprs = new ArrayList<>();
    bodyExprs.add(requestAssignmentExpr);
    List<Statement> bodyStatements = new ArrayList<>();
    RegionTag regionTag;
    if (method.isPaged()) {
        // e.g. echoClient.pagedExpand(request).iterateAll()
        Sample unaryPagedRpc = composePagedSample(method, clientVarExpr, rpcMethodArgVarExprs, bodyExprs, messageTypes);
        bodyStatements.addAll(unaryPagedRpc.body());
        regionTag = unaryPagedRpc.regionTag();
    } else if (method.hasLro()) {
        Sample unaryLroRpc = composeLroSample(method, clientVarExpr, rpcMethodArgVarExprs, bodyExprs);
        bodyStatements.addAll(unaryLroRpc.body());
        regionTag = unaryLroRpc.regionTag();
    } else {
        // e.g. echoClient.echo(request)
        Sample unaryRpc = composeSample(method, clientVarExpr, rpcMethodArgVarExprs, bodyExprs);
        bodyStatements.addAll(unaryRpc.body());
        regionTag = unaryRpc.regionTag();
    }
    List<Statement> body = Arrays.asList(TryCatchStatement.builder().setTryResourceExpr(SampleComposerUtil.assignClientVariableWithCreateMethodExpr(clientVarExpr)).setTryBody(bodyStatements).setIsSampleCode(true).build());
    return Sample.builder().setBody(body).setRegionTag(regionTag).setIsCanonical(true).build();
}

Example 28 with Statement

use of com.google.api.generator.engine.ast.Statement in project gapic-generator-java by googleapis.

the class ServiceClientTestClassComposer method createRpcExceptionTestMethod.

@Override
protected MethodDefinition createRpcExceptionTestMethod(Method method, Service service, List<MethodArgument> methodSignature, int variantIndex, Map<String, VariableExpr> classMemberVarExprs, Map<String, ResourceName> resourceNames, Map<String, Message> messageTypes) {
    VariableExpr exceptionVarExpr = VariableExpr.withVariable(Variable.builder().setType(FIXED_REST_TYPESTORE.get("ApiException")).setName("exception").build());
    // First two assignment lines.
    Expr exceptionAssignExpr = AssignmentExpr.builder().setVariableExpr(exceptionVarExpr.toBuilder().setIsDecl(true).build()).setValueExpr(MethodInvocationExpr.builder().setMethodName("createException").setStaticReferenceType(FIXED_REST_TYPESTORE.get("ApiExceptionFactory")).setArguments(NewObjectExpr.withType(FIXED_REST_TYPESTORE.get("Exception")), MethodInvocationExpr.builder().setMethodName("of").setStaticReferenceType(FIXED_REST_TYPESTORE.get("FakeStatusCode")).setArguments(EnumRefExpr.builder().setName("INVALID_ARGUMENT").setType(FIXED_REST_TYPESTORE.get("Code")).build()).build(), ValueExpr.withValue(PrimitiveValue.builder().setType(TypeNode.BOOLEAN).setValue("false").build())).setReturnType(exceptionVarExpr.type()).build()).build();
    Expr addExceptionExpr = MethodInvocationExpr.builder().setExprReferenceExpr(classMemberVarExprs.get(getMockServiceVarName(service))).setMethodName("addException").setArguments(exceptionVarExpr).build();
    // Try-catch block. Build the method call.
    String exceptionTestMethodName = String.format("%sExceptionTest%s", JavaStyle.toLowerCamelCase(method.name()), variantIndex > 0 ? variantIndex + 1 : "");
    boolean isStreaming = !method.stream().equals(Method.Stream.NONE);
    List<Statement> methodBody = new ArrayList<>();
    methodBody.add(ExprStatement.withExpr(exceptionAssignExpr));
    methodBody.add(ExprStatement.withExpr(addExceptionExpr));
    if (isStreaming) {
        methodBody.addAll(createStreamingRpcExceptionTestStatements(method, classMemberVarExprs, resourceNames, messageTypes));
    } else {
        methodBody.addAll(createRpcExceptionTestStatements(method, methodSignature, classMemberVarExprs, resourceNames, messageTypes));
    }
    return MethodDefinition.builder().setAnnotations(Arrays.asList(TEST_ANNOTATION)).setScope(ScopeNode.PUBLIC).setReturnType(TypeNode.VOID).setName(exceptionTestMethodName).setThrowsExceptions(Arrays.asList(TypeNode.withExceptionClazz(Exception.class))).setBody(methodBody).build();
}

Example 29 with Statement

use of com.google.api.generator.engine.ast.Statement in project gapic-generator-java by googleapis.

the class ServiceClientTestClassComposer method createRpcExceptionTestMethod.

@Override
protected MethodDefinition createRpcExceptionTestMethod(Method method, Service service, List<MethodArgument> methodSignature, int variantIndex, Map<String, VariableExpr> classMemberVarExprs, Map<String, ResourceName> resourceNames, Map<String, Message> messageTypes) {
    VariableExpr exceptionVarExpr = VariableExpr.withVariable(Variable.builder().setType(FIXED_GRPC_TYPESTORE.get("StatusRuntimeException")).setName("exception").build());
    // First two assignment lines.
    Expr exceptionAssignExpr = AssignmentExpr.builder().setVariableExpr(exceptionVarExpr.toBuilder().setIsDecl(true).build()).setValueExpr(NewObjectExpr.builder().setType(FIXED_GRPC_TYPESTORE.get("StatusRuntimeException")).setArguments(EnumRefExpr.builder().setType(GRPC_STATUS_TYPE).setName("INVALID_ARGUMENT").build()).build()).build();
    Expr addExceptionExpr = MethodInvocationExpr.builder().setExprReferenceExpr(classMemberVarExprs.get(getMockServiceVarName(service))).setMethodName("addException").setArguments(exceptionVarExpr).build();
    // Try-catch block. Build the method call.
    String exceptionTestMethodName = String.format("%sExceptionTest%s", JavaStyle.toLowerCamelCase(method.name()), variantIndex > 0 ? variantIndex + 1 : "");
    boolean isStreaming = !method.stream().equals(Method.Stream.NONE);
    List<Statement> methodBody = new ArrayList<>();
    methodBody.add(ExprStatement.withExpr(exceptionAssignExpr));
    methodBody.add(ExprStatement.withExpr(addExceptionExpr));
    if (isStreaming) {
        methodBody.addAll(createStreamingRpcExceptionTestStatements(method, classMemberVarExprs, resourceNames, messageTypes));
    } else {
        methodBody.addAll(createRpcExceptionTestStatements(method, methodSignature, classMemberVarExprs, resourceNames, messageTypes));
    }
    return MethodDefinition.builder().setAnnotations(Arrays.asList(TEST_ANNOTATION)).setScope(ScopeNode.PUBLIC).setReturnType(TypeNode.VOID).setName(exceptionTestMethodName).setThrowsExceptions(Arrays.asList(TypeNode.withExceptionClazz(Exception.class))).setBody(methodBody).build();
}

Example 30 with Statement

use of com.google.api.generator.engine.ast.Statement in project gapic-generator-java by googleapis.

the class JavaWriterVisitorTest method createForStatement.

private static ForStatement createForStatement() {
    Expr collectionExpr = MethodInvocationExpr.builder().setMethodName("getSomeStrings").build();
    ExprStatement assignExprStatement = ExprStatement.withExpr(createAssignmentExpr("aBool", "false", TypeNode.BOOLEAN));
    List<Statement> body = Arrays.asList(assignExprStatement);
    return ForStatement.builder().setLocalVariableExpr(createVariableDeclExpr("str", TypeNode.STRING)).setCollectionExpr(collectionExpr).setBody(body).build();
}