Examples with Expression org.jboss.forge.roaster._shade.org.eclipse.jdt.core.dom.Expression used on opensource projects

Example 6 with Expression

use of org.jboss.forge.roaster._shade.org.eclipse.jdt.core.dom.Expression in project camel by apache.

the class CamelJavaParserHelper method findConfigureMethodInCreateRouteBuilder.

private static MethodSource<JavaClassSource> findConfigureMethodInCreateRouteBuilder(JavaClassSource clazz, MethodSource<JavaClassSource> method) {
    // find configure inside the code
    MethodDeclaration md = (MethodDeclaration) method.getInternal();
    Block block = md.getBody();
    if (block != null) {
        List statements = block.statements();
        for (int i = 0; i < statements.size(); i++) {
            Statement stmt = (Statement) statements.get(i);
            Expression exp = null;
            if (stmt instanceof ReturnStatement) {
                ReturnStatement rs = (ReturnStatement) stmt;
                exp = rs.getExpression();
            } else if (stmt instanceof ExpressionStatement) {
                ExpressionStatement es = (ExpressionStatement) stmt;
                exp = es.getExpression();
                if (exp instanceof MethodInvocation) {
                    MethodInvocation mi = (MethodInvocation) exp;
                    for (Object arg : mi.arguments()) {
                        if (arg instanceof ClassInstanceCreation) {
                            exp = (Expression) arg;
                            break;
                        }
                    }
                }
            }
            if (exp != null && exp instanceof ClassInstanceCreation) {
                ClassInstanceCreation cic = (ClassInstanceCreation) exp;
                boolean isRouteBuilder = false;
                if (cic.getType() instanceof SimpleType) {
                    SimpleType st = (SimpleType) cic.getType();
                    isRouteBuilder = "RouteBuilder".equals(st.getName().toString());
                }
                if (isRouteBuilder && cic.getAnonymousClassDeclaration() != null) {
                    List body = cic.getAnonymousClassDeclaration().bodyDeclarations();
                    for (int j = 0; j < body.size(); j++) {
                        Object line = body.get(j);
                        if (line instanceof MethodDeclaration) {
                            MethodDeclaration amd = (MethodDeclaration) line;
                            if ("configure".equals(amd.getName().toString())) {
                                return new AnonymousMethodSource(clazz, amd);
                            }
                        }
                    }
                }
            }
        }
    }
    return null;
}

Example 7 with Expression

use of org.jboss.forge.roaster._shade.org.eclipse.jdt.core.dom.Expression 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);
            }
        }
    }
}

Example 8 with Expression

use of org.jboss.forge.roaster._shade.org.eclipse.jdt.core.dom.Expression in project camel by apache.

the class CamelJavaParserHelper method doParseCamelSimple.

private static void doParseCamelSimple(String node, JavaClassSource clazz, Block block, MethodInvocation mi, List<ParserResult> expressions) {
    String name = mi.getName().getIdentifier();
    if ("simple".equals(name)) {
        List args = mi.arguments();
        // the first argument is a string parameter for the simple expression
        if (args != null && args.size() >= 1) {
            // it is a String type
            Object arg = args.get(0);
            String simple = getLiteralValue(clazz, block, (Expression) arg);
            if (!Strings.isBlank(simple)) {
                // is this a simple expression that is called as a predicate or expression
                boolean predicate = false;
                Expression parent = mi.getExpression();
                if (parent == null) {
                    // maybe its an argument
                    // simple maybe be passed in as an argument
                    List list = mi.arguments();
                    // must be a single argument
                    if (list != null && list.size() == 1) {
                        ASTNode o = (ASTNode) list.get(0);
                        ASTNode p = o.getParent();
                        if (p instanceof MethodInvocation) {
                            // this is simple
                            String pName = ((MethodInvocation) p).getName().getIdentifier();
                            if ("simple".equals(pName)) {
                                // okay find the parent of simple which is the method that uses simple
                                parent = (Expression) p.getParent();
                            }
                        }
                    }
                }
                if (parent != null && parent instanceof MethodInvocation) {
                    MethodInvocation emi = (MethodInvocation) parent;
                    String parentName = emi.getName().getIdentifier();
                    predicate = isSimplePredicate(parentName);
                }
                int position = ((Expression) arg).getStartPosition();
                ParserResult result = new ParserResult(node, position, simple);
                result.setPredicate(predicate);
                expressions.add(result);
            }
        }
    }
    // simple maybe be passed in as an argument
    List args = mi.arguments();
    if (args != null) {
        for (Object arg : args) {
            if (arg instanceof MethodInvocation) {
                MethodInvocation ami = (MethodInvocation) arg;
                doParseCamelSimple(node, clazz, block, ami, expressions);
            }
        }
    }
}

Example 9 with Expression

use of org.jboss.forge.roaster._shade.org.eclipse.jdt.core.dom.Expression in project camel by apache.

the class CamelJavaParserHelper method parseExpression.

private static void parseExpression(JavaClassSource clazz, Block block, Expression exp, List<ParserResult> uris, boolean consumers, boolean producers, boolean strings, boolean fields) {
    if (exp == null) {
        return;
    }
    if (exp instanceof MethodInvocation) {
        MethodInvocation mi = (MethodInvocation) exp;
        doParseCamelUris(clazz, block, mi, uris, consumers, producers, strings, fields);
        // if the method was called on another method, then recursive
        exp = mi.getExpression();
        parseExpression(clazz, block, exp, uris, consumers, producers, strings, fields);
    }
}