Examples with PushbackInputStream java.io.PushbackInputStream used on opensource projects

Example 91 with PushbackInputStream

use of java.io.PushbackInputStream in project processdash by dtuma.

the class DefectLog method readDefects.

public Defect[] readDefects() {
    Defect[] results = null;
    PushbackInputStream pin = null;
    try {
        pin = new PushbackInputStream(new FileInputStream(defectLogFilename));
        int c = pin.read();
        if (c == -1) {
            // empty file
            ;
        } else if (c == '<') {
            // xml format
            pin.unread(c);
            results = readDefectsFromXml(pin);
        } else {
            // tab-delimited format
            pin.unread(c);
            results = readTabDelimitedDefects(pin);
        }
    } catch (FileNotFoundException f) {
        System.out.println("FileNotFoundException: " + f);
    } catch (SAXException i) {
        System.out.println("Invalid XML defect data in file " + defectLogFilename + ": " + XMLUtils.exceptionMessage(i));
    } catch (IOException i) {
        System.out.println("IOException: " + i);
    }
    FileUtils.safelyClose(pin);
    if (results == null)
        results = new Defect[0];
    return results;
}

Example 92 with PushbackInputStream

use of java.io.PushbackInputStream in project processdash by dtuma.

the class BrokenDataFileHandler method findReplacementFromBackup.

private InputStream findReplacementFromBackup(File f) {
    // look for a "backup" subdirectory
    File backupDir = new File(f.getParentFile(), "backup");
    if (!backupDir.isDirectory())
        return null;
    // find a list of ZIP file in that directory, and look inside each
    // one (starting with the most recent) for a copy of the given file.
    File[] backupZipFiles = backupDir.listFiles(new FilenameFilter() {

        public boolean accept(File location, String name) {
            return name.startsWith("pdash-") && name.endsWith(".zip");
        }
    });
    Arrays.sort(backupZipFiles);
    for (int i = backupZipFiles.length; i-- > 0; ) {
        try {
            File zip = backupZipFiles[i];
            ZipInputStream in = new ZipInputStream(new BufferedInputStream(new FileInputStream(zip)));
            ZipEntry e;
            while ((e = in.getNextEntry()) != null) {
                if (e.getName().equalsIgnoreCase(f.getName())) {
                    PushbackInputStream pb = new PushbackInputStream(in, 1);
                    int b = pb.read();
                    if (b == 0)
                        // abort and try the next ZIP.
                        break;
                    // otherwise, we've found a viable historical file.
                    System.out.println("*************** REPAIRING CORRUPT " + f.getName() + " with data from backup/" + zip.getName() + " *****************");
                    pb.unread(b);
                    return pb;
                }
            }
            in.close();
        } catch (IOException ioe) {
        // if a given ZIP file is damaged or corrupt, skip it and look
        // through the previous ZIP files to scan further back in time
        }
    }
    // no replacement file was found in the recent backups.
    System.out.println("*************** FILE " + f.getName() + " APPEARS TO BE CORRUPT *****************");
    return null;
}

Example 93 with PushbackInputStream

use of java.io.PushbackInputStream in project frostwire by frostwire.

the class HTTPConnectionImpl method connectInputStream.

protected synchronized void connectInputStream() throws IOException {
    if (this.inputStreamConnected) {
        return;
    }
    this.inputStreamConnected = true;
    /* first read http header */
    ByteBuffer header = HTTPConnectionUtils.readheader(this.httpSocket.getInputStream(), true);
    byte[] bytes = new byte[header.limit()];
    header.get(bytes);
    this.httpHeader = new String(bytes, "ISO-8859-1").trim();
    /* parse response code/message */
    if (this.httpHeader.startsWith("HTTP")) {
        final String code = new Regex(this.httpHeader, "HTTP.*? (\\d+)").getMatch(0);
        if (code != null) {
            this.httpResponseCode = Integer.parseInt(code);
        }
        this.httpResponseMessage = new Regex(this.httpHeader, "HTTP.*? \\d+ (.+)").getMatch(0);
        if (this.httpResponseMessage == null) {
            this.httpResponseMessage = "";
        }
    } else {
        this.httpHeader = "unknown HTTP response";
        this.httpResponseCode = 200;
        this.httpResponseMessage = "unknown HTTP response";
        if (bytes.length > 0) {
            this.inputStream = new PushbackInputStream(this.httpSocket.getInputStream(), bytes.length);
            /*
                 * push back the data that got read because no http header
                 * exists
                 */
            ((PushbackInputStream) this.inputStream).unread(bytes);
        } else {
            /* nothing to push back */
            this.inputStream = this.httpSocket.getInputStream();
        }
        return;
    }
    /* read rest of http headers */
    header = HTTPConnectionUtils.readheader(this.httpSocket.getInputStream(), false);
    bytes = new byte[header.limit()];
    header.get(bytes);
    String temp = new String(bytes, "UTF-8");
    /* split header into single strings, use RN or N(buggy fucking non rfc) */
    String[] headerStrings = temp.split("(\r\n)|(\n)");
    temp = null;
    for (final String line : headerStrings) {
        String key = null;
        String value = null;
        int index = 0;
        if ((index = line.indexOf(": ")) > 0) {
            key = line.substring(0, index);
            value = line.substring(index + 2);
        } else if ((index = line.indexOf(":")) > 0) {
            /* buggy servers that don't have :space ARG */
            key = line.substring(0, index);
            value = line.substring(index + 1);
        } else {
            key = null;
            value = line;
        }
        if (key != null) {
            key = key.trim();
        }
        if (value != null) {
            value = value.trim();
        }
        List<String> list = this.headers.get(key);
        if (list == null) {
            list = new ArrayList<String>();
            this.headers.put(key, list);
        }
        list.add(value);
    }
    headerStrings = null;
    final List<String> chunked = this.headers.get("Transfer-Encoding");
    if (chunked != null && chunked.size() > 0 && "chunked".equalsIgnoreCase(chunked.get(0))) {
        this.inputStream = new ChunkedInputStream(this.httpSocket.getInputStream());
    } else {
        this.inputStream = this.httpSocket.getInputStream();
    }
}

Example 94 with PushbackInputStream

use of java.io.PushbackInputStream in project dubbo by alibaba.

the class StreamUtilsTest method testMarkSupportedInputStream.

@Test
public void testMarkSupportedInputStream() throws Exception {
    InputStream is = StreamUtilsTest.class.getResourceAsStream("/StreamUtilsTest.txt");
    assertEquals(10, is.available());
    is = new PushbackInputStream(is);
    assertEquals(10, is.available());
    assertFalse(is.markSupported());
    is = StreamUtils.markSupportedInputStream(is);
    assertEquals(10, is.available());
    is.mark(0);
    assertEquals((int) '0', is.read());
    assertEquals((int) '1', is.read());
    is.reset();
    assertEquals((int) '0', is.read());
    assertEquals((int) '1', is.read());
    assertEquals((int) '2', is.read());
    is.mark(0);
    assertEquals((int) '3', is.read());
    assertEquals((int) '4', is.read());
    assertEquals((int) '5', is.read());
    is.reset();
    assertEquals((int) '3', is.read());
    assertEquals((int) '4', is.read());
    is.mark(0);
    assertEquals((int) '5', is.read());
    assertEquals((int) '6', is.read());
    is.reset();
    assertEquals((int) '5', is.read());
    assertEquals((int) '6', is.read());
    assertEquals((int) '7', is.read());
    assertEquals((int) '8', is.read());
    assertEquals((int) '9', is.read());
    assertEquals(-1, is.read());
    assertEquals(-1, is.read());
    is.mark(0);
    assertEquals(-1, is.read());
    assertEquals(-1, is.read());
    is.reset();
    assertEquals(-1, is.read());
    assertEquals(-1, is.read());
}

Example 95 with PushbackInputStream

use of java.io.PushbackInputStream in project chipKIT32-MAX by chipKIT32.

the class StdXMLReader method stream2reader.

/**
    * Converts a stream to a reader while detecting the encoding.
    *
    * @param stream    the input for the XML data.
    * @param charsRead buffer where to put characters that have been read
    *
    * @throws java.io.IOException
    *     if an I/O error occurred
    */
protected Reader stream2reader(InputStream stream, StringBuffer charsRead) throws IOException {
    PushbackInputStream pbstream = new PushbackInputStream(stream);
    int b = pbstream.read();
    switch(b) {
        case 0x00:
        case 0xFE:
        case 0xFF:
            pbstream.unread(b);
            return new InputStreamReader(pbstream, "UTF-16");
        case 0xEF:
            for (int i = 0; i < 2; i++) {
                pbstream.read();
            }
            return new InputStreamReader(pbstream, "UTF-8");
        case 0x3C:
            b = pbstream.read();
            charsRead.append('<');
            while ((b > 0) && (b != 0x3E)) {
                charsRead.append((char) b);
                b = pbstream.read();
            }
            if (b > 0) {
                charsRead.append((char) b);
            }
            String encoding = this.getEncoding(charsRead.toString());
            if (encoding == null) {
                return new InputStreamReader(pbstream, "UTF-8");
            }
            charsRead.setLength(0);
            try {
                return new InputStreamReader(pbstream, encoding);
            } catch (UnsupportedEncodingException e) {
                return new InputStreamReader(pbstream, "UTF-8");
            }
        default:
            charsRead.append((char) b);
            return new InputStreamReader(pbstream, "UTF-8");
    }
}