Examples with Annotation org.jboss.forge.roaster.model.Annotation used on opensource projects

Example 1 with Annotation

use of org.jboss.forge.roaster.model.Annotation in project camel by apache.

the class CamelJavaParserHelper method getLiteralValue.

public static String getLiteralValue(JavaClassSource clazz, Block block, Expression expression) {
    // unwrap parenthesis
    if (expression instanceof ParenthesizedExpression) {
        expression = ((ParenthesizedExpression) expression).getExpression();
    }
    if (expression instanceof StringLiteral) {
        return ((StringLiteral) expression).getLiteralValue();
    } else if (expression instanceof BooleanLiteral) {
        return "" + ((BooleanLiteral) expression).booleanValue();
    } else if (expression instanceof NumberLiteral) {
        return ((NumberLiteral) expression).getToken();
    }
    // if it a method invocation then add a dummy value assuming the method invocation will return a valid response
    if (expression instanceof MethodInvocation) {
        String name = ((MethodInvocation) expression).getName().getIdentifier();
        return "{{" + name + "}}";
    }
    // source code we have access to
    if (expression instanceof QualifiedName) {
        QualifiedName qn = (QualifiedName) expression;
        String name = qn.getFullyQualifiedName();
        return "{{" + name + "}}";
    }
    if (expression instanceof SimpleName) {
        FieldSource<JavaClassSource> field = getField(clazz, block, (SimpleName) expression);
        if (field != null) {
            // is the field annotated with a Camel endpoint
            if (field.getAnnotations() != null) {
                for (Annotation ann : field.getAnnotations()) {
                    boolean valid = "org.apache.camel.EndpointInject".equals(ann.getQualifiedName()) || "org.apache.camel.cdi.Uri".equals(ann.getQualifiedName());
                    if (valid) {
                        Expression exp = (Expression) ann.getInternal();
                        if (exp instanceof SingleMemberAnnotation) {
                            exp = ((SingleMemberAnnotation) exp).getValue();
                        } else if (exp instanceof NormalAnnotation) {
                            List values = ((NormalAnnotation) exp).values();
                            for (Object value : values) {
                                MemberValuePair pair = (MemberValuePair) value;
                                if ("uri".equals(pair.getName().toString())) {
                                    exp = pair.getValue();
                                    break;
                                }
                            }
                        }
                        if (exp != null) {
                            return getLiteralValue(clazz, block, exp);
                        }
                    }
                }
            }
            // is the field an org.apache.camel.Endpoint type?
            if ("Endpoint".equals(field.getType().getSimpleName())) {
                // then grab the uri from the first argument
                VariableDeclarationFragment vdf = (VariableDeclarationFragment) field.getInternal();
                expression = vdf.getInitializer();
                if (expression instanceof MethodInvocation) {
                    MethodInvocation mi = (MethodInvocation) expression;
                    List args = mi.arguments();
                    if (args != null && args.size() > 0) {
                        // the first argument has the endpoint uri
                        expression = (Expression) args.get(0);
                        return getLiteralValue(clazz, block, expression);
                    }
                }
            } else {
                // no annotations so try its initializer
                VariableDeclarationFragment vdf = (VariableDeclarationFragment) field.getInternal();
                expression = vdf.getInitializer();
                if (expression == null) {
                    // its a field which has no initializer, then add a dummy value assuming the field will be initialized at runtime
                    return "{{" + field.getName() + "}}";
                } else {
                    return getLiteralValue(clazz, block, expression);
                }
            }
        } else {
            // we could not find the field in this class/method, so its maybe from some other super class, so insert a dummy value
            final String fieldName = ((SimpleName) expression).getIdentifier();
            return "{{" + fieldName + "}}";
        }
    } else if (expression instanceof InfixExpression) {
        String answer = null;
        // is it a string that is concat together?
        InfixExpression ie = (InfixExpression) expression;
        if (InfixExpression.Operator.PLUS.equals(ie.getOperator())) {
            String val1 = getLiteralValue(clazz, block, ie.getLeftOperand());
            String val2 = getLiteralValue(clazz, block, ie.getRightOperand());
            // if numeric then we plus the values, otherwise we string concat
            boolean numeric = isNumericOperator(clazz, block, ie.getLeftOperand()) && isNumericOperator(clazz, block, ie.getRightOperand());
            if (numeric) {
                Long num1 = val1 != null ? Long.valueOf(val1) : 0;
                Long num2 = val2 != null ? Long.valueOf(val2) : 0;
                answer = "" + (num1 + num2);
            } else {
                answer = (val1 != null ? val1 : "") + (val2 != null ? val2 : "");
            }
            if (!answer.isEmpty()) {
                // include extended when we concat on 2 or more lines
                List extended = ie.extendedOperands();
                if (extended != null) {
                    for (Object ext : extended) {
                        String val3 = getLiteralValue(clazz, block, (Expression) ext);
                        if (numeric) {
                            Long num3 = val3 != null ? Long.valueOf(val3) : 0;
                            Long num = Long.valueOf(answer);
                            answer = "" + (num + num3);
                        } else {
                            answer += val3 != null ? val3 : "";
                        }
                    }
                }
            }
        }
        return answer;
    }
    return null;
}

Example 2 with Annotation

use of org.jboss.forge.roaster.model.Annotation in project camel by apache.

the class RouteBuilderParser method parseRouteBuilderEndpoints.

/**
     * Parses the java source class to discover Camel endpoints.
     *
     * @param clazz                        the java source class
     * @param baseDir                      the base of the source code
     * @param fullyQualifiedFileName       the fully qualified source code file name
     * @param endpoints                    list to add discovered and parsed endpoints
     * @param unparsable                   list of unparsable nodes
     * @param includeInlinedRouteBuilders  whether to include inlined route builders in the parsing
     */
public static void parseRouteBuilderEndpoints(JavaClassSource clazz, String baseDir, String fullyQualifiedFileName, List<CamelEndpointDetails> endpoints, List<String> unparsable, boolean includeInlinedRouteBuilders) {
    // look for fields which are not used in the route
    for (FieldSource<JavaClassSource> field : clazz.getFields()) {
        // is the field annotated with a Camel endpoint
        String uri = null;
        Expression exp = null;
        for (Annotation ann : field.getAnnotations()) {
            boolean valid = "org.apache.camel.EndpointInject".equals(ann.getQualifiedName()) || "org.apache.camel.cdi.Uri".equals(ann.getQualifiedName());
            if (valid) {
                exp = (Expression) ann.getInternal();
                if (exp instanceof SingleMemberAnnotation) {
                    exp = ((SingleMemberAnnotation) exp).getValue();
                } else if (exp instanceof NormalAnnotation) {
                    List values = ((NormalAnnotation) exp).values();
                    for (Object value : values) {
                        MemberValuePair pair = (MemberValuePair) value;
                        if ("uri".equals(pair.getName().toString())) {
                            exp = pair.getValue();
                            break;
                        }
                    }
                }
                uri = CamelJavaParserHelper.getLiteralValue(clazz, null, exp);
            }
        }
        // we only want to add fields which are not used in the route
        if (!Strings.isBlank(uri) && findEndpointByUri(endpoints, uri) == null) {
            // we only want the relative dir name from the
            String fileName = fullyQualifiedFileName;
            if (fileName.startsWith(baseDir)) {
                fileName = fileName.substring(baseDir.length() + 1);
            }
            String id = field.getName();
            CamelEndpointDetails detail = new CamelEndpointDetails();
            detail.setFileName(fileName);
            detail.setClassName(clazz.getQualifiedName());
            detail.setEndpointInstance(id);
            detail.setEndpointUri(uri);
            detail.setEndpointComponentName(endpointComponentName(uri));
            // favor the position of the expression which had the actual uri
            Object internal = exp != null ? exp : field.getInternal();
            // find position of field/expression
            if (internal instanceof ASTNode) {
                int pos = ((ASTNode) internal).getStartPosition();
                int line = findLineNumber(fullyQualifiedFileName, pos);
                if (line > -1) {
                    detail.setLineNumber("" + line);
                }
            }
            // we do not know if this field is used as consumer or producer only, but we try
            // to find out by scanning the route in the configure method below
            endpoints.add(detail);
        }
    }
    // find all the configure methods
    List<MethodSource<JavaClassSource>> methods = new ArrayList<>();
    MethodSource<JavaClassSource> method = CamelJavaParserHelper.findConfigureMethod(clazz);
    if (method != null) {
        methods.add(method);
    }
    if (includeInlinedRouteBuilders) {
        List<MethodSource<JavaClassSource>> inlinedMethods = CamelJavaParserHelper.findInlinedConfigureMethods(clazz);
        if (!inlinedMethods.isEmpty()) {
            methods.addAll(inlinedMethods);
        }
    }
    // determine this to ensure when we edit the endpoint we should only the options accordingly
    for (MethodSource<JavaClassSource> configureMethod : methods) {
        // consumers only
        List<ParserResult> uris = CamelJavaParserHelper.parseCamelConsumerUris(configureMethod, true, true);
        for (ParserResult result : uris) {
            if (!result.isParsed()) {
                if (unparsable != null) {
                    unparsable.add(result.getElement());
                }
            } else {
                CamelEndpointDetails detail = findEndpointByUri(endpoints, result.getElement());
                if (detail != null) {
                    // its a consumer only
                    detail.setConsumerOnly(true);
                } else {
                    String fileName = fullyQualifiedFileName;
                    if (fileName.startsWith(baseDir)) {
                        fileName = fileName.substring(baseDir.length() + 1);
                    }
                    detail = new CamelEndpointDetails();
                    detail.setFileName(fileName);
                    detail.setClassName(clazz.getQualifiedName());
                    detail.setMethodName(configureMethod.getName());
                    detail.setEndpointInstance(null);
                    detail.setEndpointUri(result.getElement());
                    int line = findLineNumber(fullyQualifiedFileName, result.getPosition());
                    if (line > -1) {
                        detail.setLineNumber("" + line);
                    }
                    detail.setEndpointComponentName(endpointComponentName(result.getElement()));
                    detail.setConsumerOnly(true);
                    detail.setProducerOnly(false);
                    endpoints.add(detail);
                }
            }
        }
        // producer only
        uris = CamelJavaParserHelper.parseCamelProducerUris(configureMethod, true, true);
        for (ParserResult result : uris) {
            if (!result.isParsed()) {
                if (unparsable != null) {
                    unparsable.add(result.getElement());
                }
            } else {
                CamelEndpointDetails detail = findEndpointByUri(endpoints, result.getElement());
                if (detail != null) {
                    if (detail.isConsumerOnly()) {
                        // its both a consumer and producer
                        detail.setConsumerOnly(false);
                        detail.setProducerOnly(false);
                    } else {
                        // its a producer only
                        detail.setProducerOnly(true);
                    }
                }
                // the same endpoint uri may be used in multiple places in the same route
                // so we should maybe add all of them
                String fileName = fullyQualifiedFileName;
                if (fileName.startsWith(baseDir)) {
                    fileName = fileName.substring(baseDir.length() + 1);
                }
                detail = new CamelEndpointDetails();
                detail.setFileName(fileName);
                detail.setClassName(clazz.getQualifiedName());
                detail.setMethodName(configureMethod.getName());
                detail.setEndpointInstance(null);
                detail.setEndpointUri(result.getElement());
                int line = findLineNumber(fullyQualifiedFileName, result.getPosition());
                if (line > -1) {
                    detail.setLineNumber("" + line);
                }
                detail.setEndpointComponentName(endpointComponentName(result.getElement()));
                detail.setConsumerOnly(false);
                detail.setProducerOnly(true);
                endpoints.add(detail);
            }
        }
    }
}