Examples with FileObject javax.tools.FileObject used on opensource projects

Example 11 with FileObject

use of javax.tools.FileObject in project graal by oracle.

the class LanguageRegistrationProcessor method generateFile.

private void generateFile(List<TypeElement> languages) {
    String filename = "META-INF/truffle/language";
    // sorted properties
    Properties p = new SortedProperties();
    int cnt = 0;
    for (TypeElement l : languages) {
        Registration annotation = l.getAnnotation(Registration.class);
        if (annotation == null) {
            continue;
        }
        String prefix = "language" + ++cnt + ".";
        String className = processingEnv.getElementUtils().getBinaryName(l).toString();
        String id = annotation.id();
        if (id != null && !id.isEmpty()) {
            p.setProperty(prefix + "id", id);
        }
        p.setProperty(prefix + "name", annotation.name());
        p.setProperty(prefix + "implementationName", annotation.implementationName());
        p.setProperty(prefix + "version", annotation.version());
        p.setProperty(prefix + "className", className);
        String[] mimes = annotation.mimeType();
        for (int i = 0; i < mimes.length; i++) {
            p.setProperty(prefix + "mimeType." + i, mimes[i]);
        }
        String[] dependencies = annotation.dependentLanguages();
        Arrays.sort(dependencies);
        for (int i = 0; i < dependencies.length; i++) {
            p.setProperty(prefix + "dependentLanguage." + i, dependencies[i]);
        }
        p.setProperty(prefix + "interactive", Boolean.toString(annotation.interactive()));
        p.setProperty(prefix + "internal", Boolean.toString(annotation.internal()));
    }
    if (cnt > 0) {
        try {
            FileObject file = processingEnv.getFiler().createResource(StandardLocation.CLASS_OUTPUT, "", filename, languages.toArray(new Element[0]));
            try (OutputStream os = file.openOutputStream()) {
                p.store(os, "Generated by " + LanguageRegistrationProcessor.class.getName());
            }
        } catch (IOException e) {
            if (e instanceof FilerException) {
                if (e.getMessage().startsWith("Source file already created")) {
                    // ignore source file already created errors
                    return;
                }
            }
            processingEnv.getMessager().printMessage(Kind.ERROR, e.getMessage(), languages.get(0));
        }
    }
}

Example 12 with FileObject

use of javax.tools.FileObject in project graal by oracle.

the class OptionProcessor method processElement.

private void processElement(Element element, OptionsInfo info) {
    if (!element.getModifiers().contains(Modifier.STATIC)) {
        processingEnv.getMessager().printMessage(Kind.ERROR, "Option field must be static", element);
        return;
    }
    if (element.getModifiers().contains(Modifier.PRIVATE)) {
        processingEnv.getMessager().printMessage(Kind.ERROR, "Option field cannot be private", element);
        return;
    }
    Option annotation = element.getAnnotation(Option.class);
    assert annotation != null;
    assert element instanceof VariableElement;
    assert element.getKind() == ElementKind.FIELD;
    VariableElement field = (VariableElement) element;
    String fieldName = field.getSimpleName().toString();
    Elements elements = processingEnv.getElementUtils();
    Types types = processingEnv.getTypeUtils();
    TypeMirror fieldType = field.asType();
    if (fieldType.getKind() != TypeKind.DECLARED) {
        processingEnv.getMessager().printMessage(Kind.ERROR, "Option field must be of type " + OptionKey.class.getName(), element);
        return;
    }
    DeclaredType declaredFieldType = (DeclaredType) fieldType;
    TypeMirror optionKeyType = elements.getTypeElement(OptionKey.class.getName()).asType();
    if (!types.isSubtype(fieldType, types.erasure(optionKeyType))) {
        String msg = String.format("Option field type %s is not a subclass of %s", fieldType, optionKeyType);
        processingEnv.getMessager().printMessage(Kind.ERROR, msg, element);
        return;
    }
    if (!field.getModifiers().contains(Modifier.STATIC)) {
        processingEnv.getMessager().printMessage(Kind.ERROR, "Option field must be static", element);
        return;
    }
    if (field.getModifiers().contains(Modifier.PRIVATE)) {
        processingEnv.getMessager().printMessage(Kind.ERROR, "Option field cannot be private", element);
        return;
    }
    String optionName = annotation.name();
    if (optionName.equals("")) {
        optionName = fieldName;
    }
    if (!Character.isUpperCase(optionName.charAt(0))) {
        processingEnv.getMessager().printMessage(Kind.ERROR, "Option name must start with an upper case letter", element);
        return;
    }
    DeclaredType declaredOptionKeyType = declaredFieldType;
    while (!types.isSameType(types.erasure(declaredOptionKeyType), types.erasure(optionKeyType))) {
        List<? extends TypeMirror> directSupertypes = types.directSupertypes(declaredFieldType);
        assert !directSupertypes.isEmpty();
        declaredOptionKeyType = (DeclaredType) directSupertypes.get(0);
    }
    assert !declaredOptionKeyType.getTypeArguments().isEmpty();
    String optionType = declaredOptionKeyType.getTypeArguments().get(0).toString();
    if (optionType.startsWith("java.lang.")) {
        optionType = optionType.substring("java.lang.".length());
    }
    Element enclosing = element.getEnclosingElement();
    String declaringClass = "";
    String separator = "";
    Set<Element> originatingElementsList = info.originatingElements;
    originatingElementsList.add(field);
    PackageElement enclosingPackage = null;
    while (enclosing != null) {
        if (enclosing.getKind() == ElementKind.CLASS || enclosing.getKind() == ElementKind.INTERFACE) {
            if (enclosing.getModifiers().contains(Modifier.PRIVATE)) {
                String msg = String.format("Option field cannot be declared in a private %s %s", enclosing.getKind().name().toLowerCase(), enclosing);
                processingEnv.getMessager().printMessage(Kind.ERROR, msg, element);
                return;
            }
            originatingElementsList.add(enclosing);
            declaringClass = enclosing.getSimpleName() + separator + declaringClass;
            separator = ".";
        } else if (enclosing.getKind() == ElementKind.PACKAGE) {
            enclosingPackage = (PackageElement) enclosing;
        }
        enclosing = enclosing.getEnclosingElement();
    }
    if (enclosingPackage == null) {
        processingEnv.getMessager().printMessage(Kind.ERROR, "Option field cannot be declared in the unnamed package", element);
        return;
    }
    String[] helpValue = annotation.help();
    String help = "";
    String[] extraHelp = {};
    if (helpValue.length == 1) {
        help = helpValue[0];
        if (help.startsWith("file:")) {
            String path = help.substring("file:".length());
            Filer filer = processingEnv.getFiler();
            try {
                FileObject file;
                try {
                    file = filer.getResource(StandardLocation.SOURCE_PATH, enclosingPackage.getQualifiedName(), path);
                } catch (IllegalArgumentException | IOException e) {
                    // Handle the case when a compiler doesn't support the SOURCE_PATH location
                    file = filer.getResource(StandardLocation.CLASS_OUTPUT, enclosingPackage.getQualifiedName(), path);
                }
                try (BufferedReader br = new BufferedReader(new InputStreamReader(file.openInputStream()))) {
                    help = br.readLine();
                    if (help == null) {
                        help = "";
                    }
                    String line = br.readLine();
                    List<String> lines = new ArrayList<>();
                    while (line != null) {
                        lines.add(line);
                        line = br.readLine();
                    }
                    extraHelp = lines.toArray(new String[lines.size()]);
                }
            } catch (IOException e) {
                String msg = String.format("Error reading %s containing the help text for option field: %s", path, e);
                processingEnv.getMessager().printMessage(Kind.ERROR, msg, element);
                return;
            }
        }
    } else if (helpValue.length > 1) {
        help = helpValue[0];
        extraHelp = Arrays.copyOfRange(helpValue, 1, helpValue.length);
    }
    if (help.length() != 0) {
        char firstChar = help.charAt(0);
        if (!Character.isUpperCase(firstChar)) {
            processingEnv.getMessager().printMessage(Kind.ERROR, "Option help text must start with an upper case letter", element);
            return;
        }
    }
    info.options.add(new OptionInfo(optionName, annotation.type(), help, extraHelp, optionType, declaringClass, field));
}

Example 13 with FileObject

use of javax.tools.FileObject in project vue-gwt by Axellience.

the class ComponentTemplateProcessor method getTemplateContent.

private Optional<String> getTemplateContent(ClassName componentTypeName, TypeElement componentTypeElement) {
    String path = slashify(componentTypeName.reflectionName()) + ".html";
    FileObject resource;
    try {
        resource = filer.getResource(StandardLocation.CLASS_OUTPUT, "", path);
    } catch (IOException e) {
        messager.printMessage(Kind.ERROR, "Couldn't find template for component: " + componentTypeName.simpleName() + ". Check our setup guide for help. On Eclipse add !vue-gwt-resources on your project in Properties > Maven > Active Maven Profile", componentTypeElement);
        return Optional.empty();
    }
    // Get template content from HTML file
    try {
        return Optional.of(resource.getCharContent(true).toString());
    } catch (IOException e) {
        messager.printMessage(Kind.ERROR, "Failed to open template file for component: " + componentTypeName.simpleName() + ". Check our setup guide for help. On Eclipse add !vue-gwt-resources on your project in Properties > Maven > Active Maven Profile", componentTypeElement);
        return Optional.empty();
    }
}

Example 14 with FileObject

use of javax.tools.FileObject in project hibernate-orm by hibernate.

the class XmlParserHelper method getInputStreamForResource.

/**
 * Returns an input stream for the specified resource. First an attempt is made to load the resource
 * via the {@code Filer} API and if that fails {@link Class#getResourceAsStream}  is used.
 *
 * @param resource the resource to load
 *
 * @return an input stream for the specified resource or {@code null} in case resource cannot be loaded
 */
public InputStream getInputStreamForResource(String resource) {
    // METAGEN-75
    if (!resource.startsWith(RESOURCE_PATH_SEPARATOR)) {
        resource = RESOURCE_PATH_SEPARATOR + resource;
    }
    String pkg = getPackage(resource);
    String name = getRelativeName(resource);
    InputStream ormStream;
    try {
        FileObject fileObject = context.getProcessingEnvironment().getFiler().getResource(StandardLocation.CLASS_OUTPUT, pkg, name);
        ormStream = fileObject.openInputStream();
    } catch (IOException e1) {
        // TODO - METAGEN-12
        // unfortunately, the Filer.getResource API seems not to be able to load from /META-INF. One gets a
        // FilerException with the message with "Illegal name /META-INF". This means that we have to revert to
        // using the classpath. This might mean that we find a persistence.xml which is 'part of another jar.
        // Not sure what else we can do here
        ormStream = this.getClass().getResourceAsStream(resource);
    }
    return ormStream;
}

Example 15 with FileObject

use of javax.tools.FileObject in project ballerina by ballerina-lang.

the class ClassIndexProcessor method readOldIndexFile.

private FileObject readOldIndexFile(Set<String> entries, String resourceName) throws IOException {
    Reader reader = null;
    try {
        final FileObject resource = filer.getResource(StandardLocation.CLASS_OUTPUT, "", resourceName);
        reader = resource.openReader(true);
        readOldIndexFile(entries, reader);
        return resource;
    } catch (FileNotFoundException e) {
        /**
         * Ugly hack for Intellij IDEA incremental compilation.
         * The problem is that it throws FileNotFoundException on the files, if they were not created during the
         * current session of compilation.
         */
        final String realPath = e.getMessage();
        if (new File(realPath).exists()) {
            try (Reader fileReader = new InputStreamReader(new FileInputStream(realPath), "UTF-8")) {
                readOldIndexFile(entries, fileReader);
            }
        }
    } catch (IOException e) {
    // Thrown by Eclipse JDT when not found
    } catch (UnsupportedOperationException e) {
    // Java6 does not support reading old index files
    } finally {
        if (reader != null) {
            reader.close();
        }
    }
    return null;
}