Examples with IParserController com.ibm.dtfj.javacore.parser.framework.parser.IParserController used on opensource projects

Example 1 with IParserController

use of com.ibm.dtfj.javacore.parser.framework.parser.IParserController in project openj9 by eclipse.

the class JavaCoreReader method generateImage.

/**
 * @param input
 *
 * @throws UnsupportedSourceException
 * @throws ParserException
 * @throws IOException
 */
public Image generateImage(InputStream input) throws IOException {
    try {
        byte[] head = new byte[256];
        input.read(head);
        ByteArrayInputStream headByteStream = new ByteArrayInputStream(head);
        Charset cs = getJavaCoreCodePage(headByteStream);
        SequenceInputStream stream = new SequenceInputStream(headByteStream, input);
        // Use default charset if none found
        // Charset.defaultCharset is 5.0, so not usable for 1.4
        Reader reader = cs != null ? new InputStreamReader(stream, cs) : new InputStreamReader(stream);
        List frameworkSections = new DTFJComponentLoader().loadSections();
        IParserController parserController = new ParserController(frameworkSections, fImageBuilderFactory);
        parserController.addErrorListener(new IErrorListener() {

            private Logger logger = Logger.getLogger(ImageFactory.DTFJ_LOGGER_NAME);

            public void handleEvent(String msg) {
                // map errors onto Level.FINE so that DTFJ is silent unless explicitly changed
                logger.fine(msg);
            }
        });
        J9TagManager tagManager = J9TagManager.getCurrent();
        return parserController.parse(fComponents.getScannerManager(reader, tagManager));
    } catch (ParserException e) {
        IOException e1 = new IOException("Error parsing Javacore");
        e1.initCause(e);
        throw e1;
    }
}