com.sun.tools.javac.util.Log.WriterKind Java Examples

/**
 * Main program - external wrapper. In order to maintain backward
 * CLI  compatibility, we dispatch to the old tool or the old doclet's
 * Start mechanism, based on the options present on the command line
 * with the following precedence:
 *   1. presence of -Xold, dispatch to old tool
 *   2. doclet variant, if old, dispatch to old Start
 *   3. taglet variant, if old, dispatch to old Start
 *
 * Thus the presence of -Xold switches the tool, soon after command files
 * if any, are expanded, this is performed here, noting that the messager
 * is available at this point in time.
 * The doclet/taglet tests are performed in the begin method, further on,
 * this is to minimize argument processing and most importantly the impact
 * of class loader creation, needed to detect the doclet/taglet class variants.
 */
@SuppressWarnings("deprecation")
Result begin(String... argv) {
    // Preprocess @file arguments
    try {
        argv = CommandLine.parse(argv);
    } catch (IOException e) {
        error("main.cant.read", e.getMessage());
        return ERROR;
    }

    if (argv.length > 0 && "-Xold".equals(argv[0])) {
        warn("main.legacy_api");
        String[] nargv = Arrays.copyOfRange(argv, 1, argv.length);
        int rc = com.sun.tools.javadoc.Main.execute(
                messager.programName,
                messager.getWriter(WriterKind.ERROR),
                messager.getWriter(WriterKind.WARNING),
                messager.getWriter(WriterKind.NOTICE),
                OldStdDocletName,
                nargv);
        return (rc == 0) ? OK : ERROR;
    }
    return begin(Arrays.asList(argv), Collections.emptySet());
}
 

/** Print a message reporting a fatal error.
 */
void feMessage(Throwable ex) {
    log.printRawLines(ex.getMessage());
    if (ex.getCause() != null && options.isSet("dev")) {
        ex.getCause().printStackTrace(log.getWriter(WriterKind.NOTICE));
    }
}
 

/** Display the location and checksum of a class. */
void showClass(String className) {
    PrintWriter pw = log.getWriter(WriterKind.NOTICE);
    pw.println("javac: show class: " + className);
    URL url = getClass().getResource('/' + className.replace('.', '/') + ".class");
    if (url == null)
        pw.println("  class not found");
    else {
        pw.println("  " + url);
        try {
            final String algorithm = "MD5";
            byte[] digest;
            MessageDigest md = MessageDigest.getInstance(algorithm);
            DigestInputStream in = new DigestInputStream(url.openStream(), md);
            try {
                byte[] buf = new byte[8192];
                int n;
                do { n = in.read(buf); } while (n > 0);
                digest = md.digest();
            } finally {
                in.close();
            }
            StringBuilder sb = new StringBuilder();
            for (byte b: digest)
                sb.append(String.format("%02x", b));
            pw.println("  " + algorithm + " checksum: " + sb);
        } catch (Exception e) {
            pw.println("  cannot compute digest: " + e);
        }
    }
}
 

/** Print a message reporting a fatal error.
 */
void feMessage(Throwable ex) {
    log.printRawLines(ex.getMessage());
    if (ex.getCause() != null && options.isSet("dev")) {
        ex.getCause().printStackTrace(log.getWriter(WriterKind.NOTICE));
    }
}
 

/** Print a message reporting a fatal error.
 */
void feMessage(Throwable ex) {
    log.printRawLines(ex.getMessage());
    if (ex.getCause() != null && options.isSet("dev")) {
        ex.getCause().printStackTrace(log.getWriter(WriterKind.NOTICE));
    }
}
 

/** Print numbers of errors and warnings.
 */
public void printCount(String kind, int count) {
    if (count != 0) {
        String key;
        if (count == 1)
            key = "count." + kind;
        else
            key = "count." + kind + ".plural";
        log.printLines(WriterKind.ERROR, key, String.valueOf(count));
        log.flush(Log.WriterKind.ERROR);
    }
}
 

/** Display the location and checksum of a class. */
void showClass(String className) {
    PrintWriter pw = log.getWriter(WriterKind.NOTICE);
    pw.println("javac: show class: " + className);
    URL url = getClass().getResource('/' + className.replace('.', '/') + ".class");
    if (url == null)
        pw.println("  class not found");
    else {
        pw.println("  " + url);
        try {
            final String algorithm = "MD5";
            byte[] digest;
            MessageDigest md = MessageDigest.getInstance(algorithm);
            DigestInputStream in = new DigestInputStream(url.openStream(), md);
            try {
                byte[] buf = new byte[8192];
                int n;
                do { n = in.read(buf); } while (n > 0);
                digest = md.digest();
            } finally {
                in.close();
            }
            StringBuilder sb = new StringBuilder();
            for (byte b: digest)
                sb.append(String.format("%02x", b));
            pw.println("  " + algorithm + " checksum: " + sb);
        } catch (Exception e) {
            pw.println("  cannot compute digest: " + e);
        }
    }
}
 

/** Print numbers of errors and warnings.
 */
public void printCount(String kind, int count) {
    if (count != 0) {
        String key;
        if (count == 1)
            key = "count." + kind;
        else
            key = "count." + kind + ".plural";
        log.printLines(WriterKind.ERROR, key, String.valueOf(count));
        log.flush(Log.WriterKind.ERROR);
    }
}
 

/** Display the location and checksum of a class. */
void showClass(String className) {
    PrintWriter pw = log.getWriter(WriterKind.NOTICE);
    pw.println("javac: show class: " + className);
    URL url = getClass().getResource('/' + className.replace('.', '/') + ".class");
    if (url == null)
        pw.println("  class not found");
    else {
        pw.println("  " + url);
        try {
            final String algorithm = "MD5";
            byte[] digest;
            MessageDigest md = MessageDigest.getInstance(algorithm);
            DigestInputStream in = new DigestInputStream(url.openStream(), md);
            try {
                byte[] buf = new byte[8192];
                int n;
                do { n = in.read(buf); } while (n > 0);
                digest = md.digest();
            } finally {
                in.close();
            }
            StringBuilder sb = new StringBuilder();
            for (byte b: digest)
                sb.append(String.format("%02x", b));
            pw.println("  " + algorithm + " checksum: " + sb);
        } catch (Exception e) {
            pw.println("  cannot compute digest: " + e);
        }
    }
}
 

/** Print numbers of errors and warnings.
 */
public void printCount(String kind, int count) {
    if (count != 0) {
        String key;
        if (count == 1)
            key = "count." + kind;
        else
            key = "count." + kind + ".plural";
        log.printLines(WriterKind.ERROR, key, String.valueOf(count));
        log.flush(Log.WriterKind.ERROR);
    }
}
 

/** Print a message reporting a fatal error.
 */
void feMessage(Throwable ex, Options options) {
    log.printRawLines(ex.getMessage());
    if (ex.getCause() != null && options.isSet("dev")) {
        ex.getCause().printStackTrace(log.getWriter(WriterKind.NOTICE));
    }
}
 

/** Display the location and checksum of a class. */
void showClass(String className) {
    PrintWriter pw = log.getWriter(WriterKind.NOTICE);
    pw.println("javac: show class: " + className);
    URL url = getClass().getResource('/' + className.replace('.', '/') + ".class");
    if (url == null)
        pw.println("  class not found");
    else {
        pw.println("  " + url);
        try {
            final String algorithm = "MD5";
            byte[] digest;
            MessageDigest md = MessageDigest.getInstance(algorithm);
            DigestInputStream in = new DigestInputStream(url.openStream(), md);
            try {
                byte[] buf = new byte[8192];
                int n;
                do { n = in.read(buf); } while (n > 0);
                digest = md.digest();
            } finally {
                in.close();
            }
            StringBuilder sb = new StringBuilder();
            for (byte b: digest)
                sb.append(String.format("%02x", b));
            pw.println("  " + algorithm + " checksum: " + sb);
        } catch (Exception e) {
            pw.println("  cannot compute digest: " + e);
        }
    }
}
 

/** Display the location and checksum of a class. */
void showClass(String className) {
    PrintWriter pw = log.getWriter(WriterKind.NOTICE);
    pw.println("javac: show class: " + className);

    URL url = getClass().getResource('/' + className.replace('.', '/') + ".class");
    if (url != null) {
        pw.println("  " + url);
    }

    try (InputStream in = getClass().getResourceAsStream('/' + className.replace('.', '/') + ".class")) {
        final String algorithm = "MD5";
        byte[] digest;
        MessageDigest md = MessageDigest.getInstance(algorithm);
        try (DigestInputStream din = new DigestInputStream(in, md)) {
            byte[] buf = new byte[8192];
            int n;
            do { n = din.read(buf); } while (n > 0);
            digest = md.digest();
        }
        StringBuilder sb = new StringBuilder();
        for (byte b: digest)
            sb.append(String.format("%02x", b));
        pw.println("  " + algorithm + " checksum: " + sb);
    } catch (NoSuchAlgorithmException | IOException e) {
        pw.println("  cannot compute digest: " + e);
    }
}
 

protected void help(Log log, String descr) {
    String synopses = StreamSupport.stream(Arrays.asList(names))
            .map(s -> helpSynopsis(s, log))
            .collect(Collectors.joining(", "));

    // If option synopses and description fit on a single line of reasonable length,
    // display using COMPACT_FORMAT
    if (synopses.length() < DEFAULT_SYNOPSIS_WIDTH
            && !descr.contains("\n")
            && (SMALL_INDENT.length() + DEFAULT_SYNOPSIS_WIDTH + 1 + descr.length() <= DEFAULT_MAX_LINE_LENGTH)) {
        log.printRawLines(WriterKind.STDOUT, String.format(COMPACT_FORMAT, synopses, descr));
        return;
    }

    // If option synopses fit on a single line of reasonable length, show that;
    // otherwise, show 1 per line
    if (synopses.length() <= DEFAULT_MAX_LINE_LENGTH) {
        log.printRawLines(WriterKind.STDOUT, SMALL_INDENT + synopses);
    } else {
        for (String name: names) {
            log.printRawLines(WriterKind.STDOUT, SMALL_INDENT + helpSynopsis(name, log));
        }
    }

    // Finally, show the description
    log.printRawLines(WriterKind.STDOUT, LARGE_INDENT + descr.replace("\n", "\n" + LARGE_INDENT));
}
 

/** Print numbers of errors and warnings.
 */
public void printCount(String kind, int count) {
    if (count != 0) {
        String key;
        if (count == 1)
            key = "count." + kind;
        else
            key = "count." + kind + ".plural";
        log.printLines(WriterKind.ERROR, key, String.valueOf(count));
        log.flush(Log.WriterKind.ERROR);
    }
}
 

/** Print a message reporting a fatal error.
 */
void feMessage(Throwable ex) {
    log.printRawLines(ex.getMessage());
    if (ex.getCause() != null && options.isSet("dev")) {
        ex.getCause().printStackTrace(log.getWriter(WriterKind.NOTICE));
    }
}
 

/** Display the location and checksum of a class. */
void showClass(String className) {
    PrintWriter pw = log.getWriter(WriterKind.NOTICE);
    pw.println("javac: show class: " + className);
    URL url = getClass().getResource('/' + className.replace('.', '/') + ".class");
    if (url == null)
        pw.println("  class not found");
    else {
        pw.println("  " + url);
        try {
            final String algorithm = "MD5";
            byte[] digest;
            MessageDigest md = MessageDigest.getInstance(algorithm);
            DigestInputStream in = new DigestInputStream(url.openStream(), md);
            try {
                byte[] buf = new byte[8192];
                int n;
                do { n = in.read(buf); } while (n > 0);
                digest = md.digest();
            } finally {
                in.close();
            }
            StringBuilder sb = new StringBuilder();
            for (byte b: digest)
                sb.append(String.format("%02x", b));
            pw.println("  " + algorithm + " checksum: " + sb);
        } catch (Exception e) {
            pw.println("  cannot compute digest: " + e);
        }
    }
}
 

/** Print numbers of errors and warnings.
 */
public void printCount(String kind, int count) {
    if (count != 0) {
        String key;
        if (count == 1)
            key = "count." + kind;
        else
            key = "count." + kind + ".plural";
        log.printLines(WriterKind.ERROR, key, String.valueOf(count));
        log.flush(Log.WriterKind.ERROR);
    }
}
 

/** Print a message reporting a fatal error.
 */
void feMessage(Throwable ex, Options options) {
    log.printRawLines(ex.getMessage());
    if (ex.getCause() != null && options.isSet("dev")) {
        ex.getCause().printStackTrace(log.getWriter(WriterKind.NOTICE));
    }
}
 

/** Display the location and checksum of a class. */
void showClass(String className) {
    PrintWriter pw = log.getWriter(WriterKind.NOTICE);
    pw.println("javac: show class: " + className);

    URL url = getClass().getResource('/' + className.replace('.', '/') + ".class");
    if (url != null) {
        pw.println("  " + url);
    }

    try (InputStream in = getClass().getResourceAsStream('/' + className.replace('.', '/') + ".class")) {
        final String algorithm = "MD5";
        byte[] digest;
        MessageDigest md = MessageDigest.getInstance(algorithm);
        try (DigestInputStream din = new DigestInputStream(in, md)) {
            byte[] buf = new byte[8192];
            int n;
            do { n = din.read(buf); } while (n > 0);
            digest = md.digest();
        }
        StringBuilder sb = new StringBuilder();
        for (byte b: digest)
            sb.append(String.format("%02x", b));
        pw.println("  " + algorithm + " checksum: " + sb);
    } catch (NoSuchAlgorithmException | IOException e) {
        pw.println("  cannot compute digest: " + e);
    }
}
 

protected void help(Log log, String descr) {
    String synopses = Arrays.stream(names)
            .map(s -> helpSynopsis(s, log))
            .collect(Collectors.joining(", "));

    // If option synopses and description fit on a single line of reasonable length,
    // display using COMPACT_FORMAT
    if (synopses.length() < DEFAULT_SYNOPSIS_WIDTH
            && !descr.contains("\n")
            && (SMALL_INDENT.length() + DEFAULT_SYNOPSIS_WIDTH + 1 + descr.length() <= DEFAULT_MAX_LINE_LENGTH)) {
        log.printRawLines(WriterKind.STDOUT, String.format(COMPACT_FORMAT, synopses, descr));
        return;
    }

    // If option synopses fit on a single line of reasonable length, show that;
    // otherwise, show 1 per line
    if (synopses.length() <= DEFAULT_MAX_LINE_LENGTH) {
        log.printRawLines(WriterKind.STDOUT, SMALL_INDENT + synopses);
    } else {
        for (String name: names) {
            log.printRawLines(WriterKind.STDOUT, SMALL_INDENT + helpSynopsis(name, log));
        }
    }

    // Finally, show the description
    log.printRawLines(WriterKind.STDOUT, LARGE_INDENT + descr.replace("\n", "\n" + LARGE_INDENT));
}
 

/** Print numbers of errors and warnings.
 */
public void printCount(String kind, int count) {
    if (count != 0) {
        String key;
        if (count == 1)
            key = "count." + kind;
        else
            key = "count." + kind + ".plural";
        log.printLines(WriterKind.ERROR, key, String.valueOf(count));
        log.flush(Log.WriterKind.ERROR);
    }
}
 

/** Print a message reporting a fatal error.
 */
void feMessage(Throwable ex) {
    log.printRawLines(ex.getMessage());
    if (ex.getCause() != null && options.isSet("dev")) {
        ex.getCause().printStackTrace(log.getWriter(WriterKind.NOTICE));
    }
}
 

/** Display the location and checksum of a class. */
void showClass(String className) {
    PrintWriter pw = log.getWriter(WriterKind.NOTICE);
    pw.println("javac: show class: " + className);
    URL url = getClass().getResource('/' + className.replace('.', '/') + ".class");
    if (url == null)
        pw.println("  class not found");
    else {
        pw.println("  " + url);
        try {
            final String algorithm = "MD5";
            byte[] digest;
            MessageDigest md = MessageDigest.getInstance(algorithm);
            DigestInputStream in = new DigestInputStream(url.openStream(), md);
            try {
                byte[] buf = new byte[8192];
                int n;
                do { n = in.read(buf); } while (n > 0);
                digest = md.digest();
            } finally {
                in.close();
            }
            StringBuilder sb = new StringBuilder();
            for (byte b: digest)
                sb.append(String.format("%02x", b));
            pw.println("  " + algorithm + " checksum: " + sb);
        } catch (Exception e) {
            pw.println("  cannot compute digest: " + e);
        }
    }
}
 

/** Print numbers of errors and warnings.
 */
public void printCount(String kind, int count) {
    if (count != 0) {
        String key;
        if (count == 1)
            key = "count." + kind;
        else
            key = "count." + kind + ".plural";
        log.printLines(WriterKind.ERROR, key, String.valueOf(count));
        log.flush(Log.WriterKind.ERROR);
    }
}
 

/** Print a message reporting a fatal error.
 */
void feMessage(Throwable ex) {
    log.printRawLines(ex.getMessage());
    if (ex.getCause() != null && options.isSet("dev")) {
        ex.getCause().printStackTrace(log.getWriter(WriterKind.NOTICE));
    }
}
 

/** Print numbers of errors and warnings.
 */
public void printCount(String kind, int count) {
    if (count != 0) {
        String key;
        if (count == 1)
            key = "count." + kind;
        else
            key = "count." + kind + ".plural";
        log.printLines(WriterKind.ERROR, key, String.valueOf(count));
        log.flush(Log.WriterKind.ERROR);
    }
}
 

/** Print a message reporting a fatal error.
 */
void feMessage(Throwable ex) {
    log.printRawLines(ex.getMessage());
    if (ex.getCause() != null && options.isSet("dev")) {
        ex.getCause().printStackTrace(log.getWriter(WriterKind.NOTICE));
    }
}
 

/** Print a message reporting an input/output error.
 */
void ioMessage(Throwable ex) {
    log.printLines(PrefixKind.JAVAC, "msg.io");
    ex.printStackTrace(log.getWriter(WriterKind.NOTICE));
}
 

/** Print a message reporting an uncaught exception from an
 * annotation processor.
 */
void pluginMessage(Throwable ex) {
    log.printLines(PrefixKind.JAVAC, "msg.plugin.uncaught.exception");
    ex.printStackTrace(log.getWriter(WriterKind.NOTICE));
}