Example usage for java.io IOException getCause

Introduction

In this page you can find the example usage for java.io IOException getCause.

Prototype

public synchronized Throwable getCause() 

Source Link

Document

Returns the cause of this throwable or null if the cause is nonexistent or unknown.

Usage

From source file:xtrememp.playlist.PlaylistIO.java

/**
 * Saves playlist in M3U format./*from  w w w .  j  ava2s  .c om*/
 * 
 * @param playlist
 * @param location
 * @return <code>true</code> if playlist is successfully saved, else <code>false</code>.
 */
public static boolean saveM3U(Playlist playlist, String location) throws PlaylistException {
    if (playlist != null) {
        BufferedWriter bw = null;
        try {
            bw = new BufferedWriter(new FileWriter(location));
            bw.write("#EXTM3U");
            bw.newLine();
            for (PlaylistItem pli : playlist.listAllItems()) {
                bw.write("#EXTINF:" + pli.getM3UExtInf());
                bw.newLine();
                bw.write(pli.getLocation());
                bw.newLine();
            }
            playlist.setModified(false);
            return true;
        } catch (IOException ex) {
            logger.error("Can't save playlist in M3U format", ex);
            throw new PlaylistException(ex.getMessage(), ex.getCause());
        } finally {
            IOUtils.closeQuietly(bw);
        }
    }
    return false;
}

---

From source file:gov.nasa.ensemble.common.io.FileUtilities.java

/**
 * Make a copy of a file on the filesystem (platform independent).
 * /*from  www  .j  av  a2  s  .  c  om*/
 * @param source
 *            the file to copy.
 * @param dest
 *            the copy to make.
 * @return whether the file copy exists on the filesystem upon completion.
 * @throws IOException
 */
public static boolean copyFile(File source, File dest) throws IOException {
    FileInputStream sourceStream = new FileInputStream(source);
    FileChannel sourceChannel = sourceStream.getChannel();
    FileOutputStream destStream = new FileOutputStream(dest);
    FileChannel destChannel = destStream.getChannel();
    try {
        sourceChannel.transferTo(0, sourceChannel.size(), destChannel);
    } catch (IOException ex) {
        if (ex.getCause() instanceof OutOfMemoryError) {
            IOUtils.copy(sourceStream, destStream);
        }
    } finally {
        destChannel.close();
        IOUtils.closeQuietly(destStream);
        sourceChannel.close();
        IOUtils.closeQuietly(sourceStream);
    }

    return dest.exists();
}

---

From source file:com.hortonworks.hbase.replication.bridge.HBaseRPC.java

/**
 * @param protocol protocol interface/*ww w  . j a  va 2  s .  com*/
 * @param clientVersion which client version we expect
 * @param addr address of remote service
 * @param conf configuration
 * @param maxAttempts max attempts
 * @param rpcTimeout timeout for each RPC
 * @param timeout timeout in milliseconds
 * @return proxy
 * @throws IOException e
 */
@SuppressWarnings("unchecked")
public static <T extends VersionedProtocol> T waitForProxy(RpcEngine rpcClient, Class<T> protocol,
        long clientVersion, InetSocketAddress addr, Configuration conf, int maxAttempts, int rpcTimeout,
        long timeout) throws IOException {
    // HBase does limited number of reconnects which is different from hadoop.
    long startTime = System.currentTimeMillis();
    IOException ioe;
    int reconnectAttempts = 0;
    while (true) {
        try {
            return rpcClient.getProxy(protocol, clientVersion, addr, conf, rpcTimeout);
        } catch (SocketTimeoutException te) { // namenode is busy
            LOG.info("Problem connecting to server: " + addr);
            ioe = te;
        } catch (IOException ioex) {
            // We only handle the ConnectException.
            ConnectException ce = null;
            if (ioex instanceof ConnectException) {
                ce = (ConnectException) ioex;
                ioe = ce;
            } else if (ioex.getCause() != null && ioex.getCause() instanceof ConnectException) {
                ce = (ConnectException) ioex.getCause();
                ioe = ce;
            } else if (ioex.getMessage().toLowerCase().contains("connection refused")) {
                ce = new ConnectException(ioex.getMessage());
                ioe = ce;
            } else {
                // This is the exception we can't handle.
                ioe = ioex;
            }
            if (ce != null) {
                handleConnectionException(++reconnectAttempts, maxAttempts, protocol, addr, ce);
            }
        }
        // check if timed out
        if (System.currentTimeMillis() - timeout >= startTime) {
            throw ioe;
        }

        // wait for retry
        try {
            Thread.sleep(1000);
        } catch (InterruptedException ie) {
            // IGNORE
        }
    }
}

---

From source file:org.wildfly.test.integration.elytron.sasl.mgmt.ScramPlusMgmtSaslTestCase.java

/**
 * Asserts that execution of :whoami operation fail and exception contains
 *//* w  w  w  . ja  va 2  s  . c o m*/
protected static void assertAuthenticationFailsPlusRequired() {
    final long startTime = System.currentTimeMillis();
    try {
        executeWhoAmI();
        fail("Client authentication failure is expected.");
    } catch (IOException e) {
        assertTrue("Connection reached its timeout (hang).",
                startTime + CONNECTION_TIMEOUT_IN_MS > System.currentTimeMillis());
        Throwable cause = e.getCause();
        assertThat("ConnectionException was expected as a cause when SASL authentication fails", cause,
                is(instanceOf(ConnectException.class)));
        Throwable saslException = cause.getCause();
        assertThat("An unexpected second Exception cause came when authentication failed", saslException,
                is(instanceOf(SaslException.class)));
        final String saslExceptionMsg = saslException.getMessage();
        assertThat("SASL Error message should contain reason of failure (channel binding configuration).",
                saslExceptionMsg, allOf(containsString("ELY05166"),
                        containsString(ScramServerErrorCode.SERVER_DOES_SUPPORT_CHANNEL_BINDING.getText())));
    }
}

---

From source file:org.apache.hadoop.hbase.zookeeper.MetaTableLocator.java

/**
 * @param sn ServerName to get a connection against.
 * @return The AdminProtocol we got when we connected to <code>sn</code>
 * May have come from cache, may not be good, may have been setup by this
 * invocation, or may be null./*www.  j  av a2 s . c o m*/
 * @throws IOException
 */
@SuppressWarnings("deprecation")
private static AdminService.BlockingInterface getCachedConnection(HConnection hConnection, ServerName sn)
        throws IOException {
    if (sn == null) {
        return null;
    }
    AdminService.BlockingInterface service = null;
    try {
        service = hConnection.getAdmin(sn);
    } catch (RetriesExhaustedException e) {
        if (e.getCause() != null && e.getCause() instanceof ConnectException) {
            // Catch this; presume it means the cached connection has gone bad.
        } else {
            throw e;
        }
    } catch (SocketTimeoutException e) {
        LOG.debug("Timed out connecting to " + sn);
    } catch (NoRouteToHostException e) {
        LOG.debug("Connecting to " + sn, e);
    } catch (SocketException e) {
        LOG.debug("Exception connecting to " + sn);
    } catch (UnknownHostException e) {
        LOG.debug("Unknown host exception connecting to  " + sn);
    } catch (FailedServerException e) {
        if (LOG.isDebugEnabled()) {
            LOG.debug("Server " + sn + " is in failed server list.");
        }
    } catch (IOException ioe) {
        Throwable cause = ioe.getCause();
        if (ioe instanceof ConnectException) {
            // Catch. Connect refused.
        } else if (cause != null && cause instanceof EOFException) {
            // Catch. Other end disconnected us.
        } else if (cause != null && cause.getMessage() != null
                && cause.getMessage().toLowerCase().contains("connection reset")) {
            // Catch. Connection reset.
        } else {
            throw ioe;
        }

    }
    return service;
}

---

From source file:mas.MAS_TOP_PAPERS.java

public static String getData2(String url_org, int start) {

    try {/*from   w  w w.j av a2  s  . c  o m*/
        String complete_url = url_org + "&$skip=" + start;
        //            String url_str = generateURL(url_org, prop);
        Document doc = Jsoup.connect(complete_url).timeout(25000).ignoreContentType(true).get();
        return doc.text();
    } catch (IOException ex) {
        System.out.println(ex.getMessage() + " Cause: " + ex.getCause());
        Logger.getLogger(MAS_TOP_PAPERS.class.getName()).log(Level.SEVERE, null, ex);
    }
    return null;
}

---

From source file:mas.MAS_VLDB.java

public static String getData2(String url_org, int start) {

    try {//from w w  w .jav  a 2  s  .  com
        String complete_url = url_org + "&$skip=" + start;
        //            String url_str = generateURL(url_org, prop);
        Document doc = Jsoup.connect(complete_url).timeout(25000).ignoreContentType(true).get();
        return doc.text();
    } catch (IOException ex) {
        System.out.println(ex.getMessage() + " Cause: " + ex.getCause());
        Logger.getLogger(MAS_VLDB.class.getName()).log(Level.SEVERE, null, ex);
    }
    return null;
}

---

From source file:org.apache.hadoop.hbase.ipc.HBaseRPC.java

/**
 * @param protocol protocol interface/*from w w w. j  a va 2  s  .c  om*/
 * @param clientVersion which client version we expect
 * @param addr address of remote service
 * @param conf configuration
 * @param maxAttempts max attempts
 * @param rpcTimeout timeout for each RPC
 * @param timeout timeout in milliseconds
 * @return proxy
 * @throws IOException e
 */
@SuppressWarnings("unchecked")
public static VersionedProtocol waitForProxy(Class protocol, long clientVersion, InetSocketAddress addr,
        Configuration conf, int maxAttempts, int rpcTimeout, long timeout) throws IOException {
    // HBase does limited number of reconnects which is different from hadoop.
    long startTime = System.currentTimeMillis();
    IOException ioe;
    int reconnectAttempts = 0;
    while (true) {
        try {
            return getProxy(protocol, clientVersion, addr, conf, rpcTimeout);
        } catch (SocketTimeoutException te) { // namenode is busy
            LOG.info("Problem connecting to server: " + addr);
            ioe = te;
        } catch (IOException ioex) {
            // We only handle the ConnectException.
            ConnectException ce = null;
            if (ioex instanceof ConnectException) {
                ce = (ConnectException) ioex;
                ioe = ce;
            } else if (ioex.getCause() != null && ioex.getCause() instanceof ConnectException) {
                ce = (ConnectException) ioex.getCause();
                ioe = ce;
            } else if (ioex.getMessage().toLowerCase().contains("connection refused")) {
                ce = new ConnectException(ioex.getMessage());
                ioe = ce;
            } else {
                // This is the exception we can't handle.
                ioe = ioex;
            }
            if (ce != null) {
                handleConnectionException(++reconnectAttempts, maxAttempts, protocol, addr, ce);
            }
        }
        // check if timed out
        if (System.currentTimeMillis() - timeout >= startTime) {
            throw ioe;
        }

        // wait for retry
        try {
            Thread.sleep(1000);
        } catch (InterruptedException ie) {
            // IGNORE
        }
    }
}

---

From source file:org.apache.tika.parser.pdf.PDF2XHTML.java

/**
 * Converts the given PDF document (and related metadata) to a stream
 * of XHTML SAX events sent to the given content handler.
 *
 * @param document PDF document/* w w w  .ja  va  2s .  c om*/
 * @param handler  SAX content handler
 * @param metadata PDF metadata
 * @throws SAXException  if the content handler fails to process SAX events
 * @throws TikaException if the PDF document can not be processed
 */
public static void process(PDDocument document, ContentHandler handler, ParseContext context, Metadata metadata,
        PDFParserConfig config) throws SAXException, TikaException {
    try {
        // Extract text using a dummy Writer as we override the
        // key methods to output to the given content
        // handler.
        PDF2XHTML pdf2XHTML = new PDF2XHTML(handler, context, metadata, config);

        config.configure(pdf2XHTML);

        pdf2XHTML.writeText(document, new Writer() {
            @Override
            public void write(char[] cbuf, int off, int len) {
            }

            @Override
            public void flush() {
            }

            @Override
            public void close() {
            }
        });

    } catch (IOException e) {
        if (e.getCause() instanceof SAXException) {
            throw (SAXException) e.getCause();
        } else {
            throw new TikaException("Unable to extract PDF content", e);
        }
    }
}

---

From source file:com.aliyun.oss.common.utils.ExceptionFactory.java

public static ClientException createNetworkException(IOException ex) {
    String requestId = "Unknown";
    String errorCode = ClientErrorCode.UNKNOWN;

    if (ex instanceof SocketTimeoutException) {
        errorCode = ClientErrorCode.SOCKET_TIMEOUT;
    } else if (ex instanceof SocketException) {
        errorCode = ClientErrorCode.SOCKET_EXCEPTION;
    } else if (ex instanceof ConnectTimeoutException) {
        errorCode = ClientErrorCode.CONNECTION_TIMEOUT;
    } else if (ex instanceof UnknownHostException) {
        errorCode = ClientErrorCode.UNKNOWN_HOST;
    } else if (ex instanceof HttpHostConnectException) {
        errorCode = ClientErrorCode.CONNECTION_REFUSED;
    } else if (ex instanceof ClientProtocolException) {
        Throwable cause = ex.getCause();
        if (cause instanceof NonRepeatableRequestException) {
            errorCode = ClientErrorCode.NONREPEATABLE_REQUEST;
            return new ClientException(cause.getMessage(), errorCode, requestId, cause);
        }//from   w ww  .  j  a  v  a2s . com
    }

    return new ClientException(ex.getMessage(), errorCode, requestId, ex);
}

---

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