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

Example 1 with FileObject

use of javax.tools.FileObject in project druid by druid-io.

the class S3DataSegmentPuller method buildFileObject.

public static FileObject buildFileObject(final URI uri, final RestS3Service s3Client) throws ServiceException {
    final S3Coords coords = new S3Coords(checkURI(uri));
    final StorageObject s3Obj = s3Client.getObjectDetails(coords.bucket, coords.path);
    final String path = uri.getPath();
    return new FileObject() {

        final Object inputStreamOpener = new Object();

        volatile boolean streamAcquired = false;

        volatile StorageObject storageObject = s3Obj;

        @Override
        public URI toUri() {
            return uri;
        }

        @Override
        public String getName() {
            final String ext = Files.getFileExtension(path);
            return Files.getNameWithoutExtension(path) + (Strings.isNullOrEmpty(ext) ? "" : ("." + ext));
        }

        @Override
        public InputStream openInputStream() throws IOException {
            try {
                synchronized (inputStreamOpener) {
                    if (streamAcquired) {
                        return storageObject.getDataInputStream();
                    }
                    // lazily promote to full GET
                    storageObject = s3Client.getObject(s3Obj.getBucketName(), s3Obj.getKey());
                    final InputStream stream = storageObject.getDataInputStream();
                    streamAcquired = true;
                    return stream;
                }
            } catch (ServiceException e) {
                throw new IOException(StringUtils.safeFormat("Could not load S3 URI [%s]", uri), e);
            }
        }

        @Override
        public OutputStream openOutputStream() throws IOException {
            throw new UOE("Cannot stream S3 output");
        }

        @Override
        public Reader openReader(boolean ignoreEncodingErrors) throws IOException {
            throw new UOE("Cannot open reader");
        }

        @Override
        public CharSequence getCharContent(boolean ignoreEncodingErrors) throws IOException {
            throw new UOE("Cannot open character sequence");
        }

        @Override
        public Writer openWriter() throws IOException {
            throw new UOE("Cannot open writer");
        }

        @Override
        public long getLastModified() {
            return s3Obj.getLastModifiedDate().getTime();
        }

        @Override
        public boolean delete() {
            throw new UOE("Cannot delete S3 items anonymously. jetS3t doesn't support authenticated deletes easily.");
        }
    };
}

Example 2 with FileObject

use of javax.tools.FileObject in project buck by facebook.

the class ClassUsageTrackerTest method readingNonJavaFileFromGetFileForInputShouldBeTracked.

@Test
public void readingNonJavaFileFromGetFileForInputShouldBeTracked() throws IOException {
    final FileObject fileObject = fileManager.getFileForInput(null, null, SINGLE_NON_JAVA_FILE_NAME);
    fileObject.openInputStream();
    assertTrue(fileWasRead(TEST_JAR_PATH, SINGLE_NON_JAVA_FILE_NAME));
}

Example 3 with FileObject

use of javax.tools.FileObject in project buck by facebook.

the class ClassUsageTrackerTest method readingJavaFileFromGetFileForOutputShouldBeTracked.

@Test
public void readingJavaFileFromGetFileForOutputShouldBeTracked() throws IOException {
    final FileObject fileObject = fileManager.getFileForOutput(null, null, SINGLE_FILE_NAME, null);
    fileObject.openInputStream();
    assertFilesRead(TEST_JAR_PATH, SINGLE_FILE_NAME);
}

Example 4 with FileObject

use of javax.tools.FileObject in project buck by facebook.

the class ClassUsageTrackerTest method readingJavaFileFromGetFileForInputShouldBeTracked.

@Test
public void readingJavaFileFromGetFileForInputShouldBeTracked() throws IOException {
    final FileObject fileObject = fileManager.getFileForInput(null, null, SINGLE_FILE_NAME);
    fileObject.openInputStream();
    assertFilesRead(TEST_JAR_PATH, SINGLE_FILE_NAME);
}

Example 5 with FileObject

use of javax.tools.FileObject in project buck by facebook.

the class AnnotationProcessor method process.

@Override
public boolean process(Set<? extends TypeElement> annotations, RoundEnvironment roundEnv) {
    try {
        FileObject resource = processingEnv.getFiler().getResource(StandardLocation.CLASS_PATH, "", "read_file.txt");
        InputStream stream = resource.openInputStream();
        stream.read();
    } catch (IOException e) {
        processingEnv.getMessager().printMessage(Diagnostic.Kind.ERROR, "Could not open read_file.txt");
    }
    return false;
}