Examples with PortUnreachableException java.net.PortUnreachableException used on opensource projects

Example 6 with PortUnreachableException

use of java.net.PortUnreachableException in project opennms by OpenNMS.

the class JMXDetector method isServiceDetected.

public final boolean isServiceDetected(final InetAddress address, Map<String, String> runtimeAttributes) {
    final String ipAddr = InetAddressUtils.str(address);
    final int port = getPort();
    final int retries = getRetries();
    final int timeout = getTimeout();
    LOG.info("isServiceDetected: {}: Checking address: {} for capability on port {}", getServiceName(), ipAddr, port);
    for (int attempts = 0; attempts < retries; attempts++) {
        try (final JmxServerConnectionWrapper client = this.connect(address, port, timeout, runtimeAttributes)) {
            LOG.info("isServiceDetected: {}: Attempting to connect to address: {}, port: {}, attempt: #{}", getServiceName(), ipAddr, port, attempts);
            if (client.getMBeanServerConnection().getMBeanCount() <= 0) {
                return false;
            }
            if (m_object != null) {
                client.getMBeanServerConnection().getObjectInstance(new ObjectName(m_object));
            }
            return true;
        } catch (ConnectException e) {
            // Connection refused!! Continue to retry.
            LOG.info("isServiceDetected: {}: Unable to connect to address: {} port {}, attempt #{}", getServiceName(), ipAddr, port, attempts, e);
        } catch (NoRouteToHostException e) {
            // No Route to host!!!
            LOG.info("isServiceDetected: {}: No route to address {} was available", getServiceName(), ipAddr, e);
        } catch (final PortUnreachableException e) {
            // Port unreachable
            LOG.info("isServiceDetected: {}: Port unreachable while connecting to address {} port {} within timeout: {} attempt: {}", getServiceName(), ipAddr, port, timeout, attempts, e);
        } catch (InterruptedIOException e) {
            // Expected exception
            LOG.info("isServiceDetected: {}: Did not connect to address {} port {} within timeout: {} attempt: {}", getServiceName(), ipAddr, port, timeout, attempts, e);
        } catch (MalformedObjectNameException e) {
            LOG.info("isServiceDetected: {}: Object instance {} is not valid on address {} port {} within timeout: {} attempt: {}", getServiceName(), m_object, ipAddr, port, timeout, attempts, e);
        } catch (InstanceNotFoundException e) {
            LOG.info("isServiceDetected: {}: Object instance {} does not exists on address {} port {} within timeout: {} attempt: {}", getServiceName(), m_object, ipAddr, port, timeout, attempts, e);
        } catch (IOException e) {
            // NMS-8096: Because the JMX connections wrap lower-level exceptions in an IOException,
            // we need to unwrap the exceptions to provide INFO log messages about failures
            boolean loggedIt = false;
            // Unwrap exception
            Throwable cause = e.getCause();
            while (cause != null && loggedIt == false) {
                if (cause instanceof ConnectException) {
                    // Connection refused!! Continue to retry.
                    LOG.info("isServiceDetected: {}: Unable to connect to address: {} port {}, attempt #{}", getServiceName(), ipAddr, port, attempts, e);
                    loggedIt = true;
                } else if (cause instanceof NoRouteToHostException) {
                    // No Route to host!!!
                    LOG.info("isServiceDetected: {}: No route to address {} was available", getServiceName(), ipAddr, e);
                    loggedIt = true;
                } else if (cause instanceof PortUnreachableException) {
                    // Port unreachable
                    LOG.info("isServiceDetected: {}: Port unreachable while connecting to address {} port {} within timeout: {} attempt: {}", getServiceName(), ipAddr, port, timeout, attempts, e);
                    loggedIt = true;
                } else if (cause instanceof InterruptedIOException) {
                    // Expected exception
                    LOG.info("isServiceDetected: {}: Did not connect to address {} port {} within timeout: {} attempt: {}", getServiceName(), ipAddr, port, timeout, attempts, e);
                    loggedIt = true;
                } else if (cause instanceof NameNotFoundException) {
                    LOG.info("isServiceDetected: {}: Name {} not found on address {} port {} within timeout: {} attempt: {}", getServiceName(), m_object, ipAddr, port, timeout, attempts, e);
                    loggedIt = true;
                } else if (cause instanceof MalformedObjectNameException) {
                    LOG.info("isServiceDetected: {}: Object instance {} is not valid on address {} port {} within timeout: {} attempt: {}", getServiceName(), m_object, ipAddr, port, timeout, attempts, e);
                    loggedIt = true;
                } else if (cause instanceof InstanceNotFoundException) {
                    LOG.info("isServiceDetected: {}: Object instance {} does not exists on address {} port {} within timeout: {} attempt: {}", getServiceName(), m_object, ipAddr, port, timeout, attempts, e);
                    loggedIt = true;
                }
                cause = cause.getCause();
            }
            if (!loggedIt) {
                // If none of the causes are an expected type, log an error
                LOG.error("isServiceDetected: {}: An unexpected I/O exception occured contacting address {} port {}", getServiceName(), ipAddr, port, e);
            }
        } catch (Throwable t) {
            LOG.error("isServiceDetected: {}: Unexpected error trying to detect {} on address {} port {}", getServiceName(), getServiceName(), ipAddr, port, t);
        }
    }
    return false;
}

Example 7 with PortUnreachableException

use of java.net.PortUnreachableException in project webpieces by deanhiller.

the class Helper method read.

private static void read(SelectionKey key, SelectorManager2 mgr, BufferPool pool) throws IOException {
    log.trace(() -> key.attachment() + "reading data");
    WrapperAndListener struct = (WrapperAndListener) key.attachment();
    DataListener in = struct.getDataHandler();
    BasChannelImpl channel = (BasChannelImpl) struct.getChannel();
    //pressure in RAM so just wait until they re-registerForReads and they will get the data then
    if (!channel.isRegisteredForReads()) {
        //do not process reads if we were unregistered
        return;
    }
    ByteBuffer chunk = pool.nextBuffer(512);
    try {
        if (logBufferNextRead)
            log.info(channel + "buffer=" + chunk);
        int bytes = channel.readImpl(chunk);
        if (logBufferNextRead) {
            logBufferNextRead = false;
            log.info(channel + "buffer2=" + chunk);
        }
        processBytes(key, chunk, bytes, mgr);
    } catch (PortUnreachableException e) {
        //this is a normal occurence when some writes out udp to a port that is not
        //listening for udp!!!  log as finer and fire to client to deal with it.
        log.trace(() -> "Client sent data to a host or port that is not listening " + "to udp, or udp can't get through to that machine", e);
        in.failure(channel, null, e);
    } catch (NotYetConnectedException e) {
        //this happens in udp when I disconnect after someone had already been streaming me
        //data.  It is supposed to stop listening but selector keeps firing.
        log.error("Can't read until UDPChannel is connected", e);
        in.failure(channel, null, e);
    } catch (IOException e) {
        //kept getting the following exception so I added this as protection
        //NOTE: this exceptionn should never occur.  read should be returning -1
        //but for some reason is returning hte exception instead.
        //        WARNING: [server] Processing of key failed, closing channel
        //        java.io.IOException: An established connection was aborted by the software in your host machine
        //            at sun.nio.ch.SocketDispatcher.read0(Native Method)
        //            at sun.nio.ch.SocketDispatcher.read(SocketDispatcher.java:25)
        //            at sun.nio.ch.IOUtil.readIntoNativeBuffer(IOUtil.java:233)
        //            at sun.nio.ch.IOUtil.read(IOUtil.java:206)
        //            at sun.nio.ch.SocketChannelImpl.read(SocketChannelImpl.java:207)
        //            at biz.xsoftware.impl.nio.cm.basic.TCPChannelImpl.readImpl(TCPChannelImpl.java:168)
        //            at biz.xsoftware.impl.nio.cm.basic.Helper.read(Helper.java:128)
        //            at biz.xsoftware.impl.nio.cm.basic.Helper.processKey(Helper.java:77)
        //            at biz.xsoftware.impl.nio.cm.basic.Helper.processKeys(Helper.java:43)
        //            at biz.xsoftware.impl.nio.cm.basic.SelectorManager2.runLoop(SelectorManager2.java:262)
        //            at biz.xsoftware.impl.nio.cm.basic.SelectorManager2$PollingThread.run
        //        (SelectorManager2.java:224)     
        //another one that landes here is the Connection reset by peer"....
        //			Jan 18, 2012 1:00:42 PM biz.xsoftware.impl.nio.cm.basic.Helper read
        //			INFO: [stserver] Exception
        //			java.io.IOException: Connection reset by peer
        //			        at sun.nio.ch.FileDispatcher.read0(Native Method)
        //			        at sun.nio.ch.SocketDispatcher.read(SocketDispatcher.java:39)
        //			        at sun.nio.ch.IOUtil.readIntoNativeBuffer(IOUtil.java:251)
        //			        at sun.nio.ch.IOUtil.read(IOUtil.java:224)
        //			        at sun.nio.ch.SocketChannelImpl.read(SocketChannelImpl.java:254)
        //			        at biz.xsoftware.impl.nio.cm.basic.chanimpl.SocketChannelImpl.read(SocketChannelImpl.java:65)
        //			        at biz.xsoftware.impl.nio.cm.basic.BasTCPChannel.readImpl(BasTCPChannel.java:108)
        //			        at biz.xsoftware.impl.nio.cm.basic.Helper.read(Helper.java:162)
        //			        at biz.xsoftware.impl.nio.cm.basic.Helper.processKey(Helper.java:104)
        //			        at biz.xsoftware.impl.nio.cm.basic.Helper.processKeys(Helper.java:51)
        //			        at biz.xsoftware.impl.nio.cm.basic.SelectorManager2.selectorFired(SelectorManager2.java:253)
        //			        at biz.xsoftware.impl.nio.cm.basic.nioimpl.SelectorImpl.runLoop(SelectorImpl.java:126)
        //			        at biz.xsoftware.impl.nio.cm.basic.nioimpl.SelectorImpl$PollingThread.run(SelectorImpl.java:107)
        //One other exception starts with "An existing connection was forcibly closed"
        //in the case of SSL over TCP only, sometimes instead of reading off a -1, this will
        //throw an IOException: "An existing connection was forcibly closed by the remote host"
        //we also close UDPChannels as well on IOException.  Not sure if this is good or not.
        process(key, mgr, in, channel, chunk, e);
    } catch (NioException e) {
        Throwable cause = e.getCause();
        if (cause instanceof IOException) {
            IOException ioExc = (IOException) cause;
            process(key, mgr, in, channel, chunk, ioExc);
        } else
            throw e;
    }
}

Example 8 with PortUnreachableException

use of java.net.PortUnreachableException in project opennms by OpenNMS.

the class TrivialTimeMonitor method pollTimeUdp.

/**
 * <p>pollTimeUdp</p>
 *
 * @param svc a {@link org.opennms.netmgt.poller.MonitoredService} object.
 * @param parameters a {@link java.util.Map} object.
 * @param serviceStatus a {@link org.opennms.netmgt.poller.PollStatus} object.
 * @param tracker a {@link org.opennms.core.utils.TimeoutTracker} object.
 * @param ipv4Addr a {@link java.net.InetAddress} object.
 * @param port a int.
 * @param allowedSkew a int.
 * @param persistSkew a boolean.
 * @return a {@link org.opennms.netmgt.poller.PollStatus} object.
 */
public PollStatus pollTimeUdp(MonitoredService svc, Map<String, Object> parameters, PollStatus serviceStatus, TimeoutTracker tracker, InetAddress ipv4Addr, int port, int allowedSkew, boolean persistSkew) {
    int localTime = 0;
    int remoteTime = 0;
    boolean gotTime = false;
    for (tracker.reset(); tracker.shouldRetry() && !gotTime; tracker.nextAttempt()) {
        DatagramSocket socket = null;
        final String hostAddress = InetAddressUtils.str(ipv4Addr);
        try {
            tracker.startAttempt();
            socket = new DatagramSocket();
            socket.setSoTimeout(tracker.getSoTimeout());
            LOG.debug("Requesting time from host: {} on UDP port: {}", ipv4Addr, port);
            // 
            // Send an empty datagram per RFC868
            // 
            socket.send(new DatagramPacket(new byte[] {}, 0, ipv4Addr, port));
            // 
            // Try to receive a response from the remote socket
            // 
            byte[] timeBytes = new byte[4];
            ByteBuffer timeByteBuffer = ByteBuffer.wrap(timeBytes);
            DatagramPacket timePacket = new DatagramPacket(timeBytes, timeBytes.length, ipv4Addr, port);
            socket.receive(timePacket);
            int bytesRead = timePacket.getLength();
            if (bytesRead != 4)
                continue;
            LOG.debug("pollTimeUdp: bytes read = {}", bytesRead);
            try {
                remoteTime = timeByteBuffer.getInt();
            } catch (BufferUnderflowException bue) {
                LOG.error("Encountered buffer underflow while reading time from remote socket.");
                remoteTime = 0;
                serviceStatus = PollStatus.unavailable("Failed to read a valid time from remote host.");
                // to next iteration of for() loop
                continue;
            }
            localTime = (int) (System.currentTimeMillis() / 1000) - EPOCH_ADJ_FACTOR;
            gotTime = true;
            serviceStatus = qualifyTime(remoteTime, localTime, allowedSkew, serviceStatus, tracker.elapsedTimeInMillis(), persistSkew);
        } catch (PortUnreachableException e) {
            String reason = "Port unreachable exception for address " + hostAddress;
            LOG.debug(reason, e);
            serviceStatus = PollStatus.unavailable(reason);
        } catch (NoRouteToHostException e) {
            String reason = "No route to host exception for address " + hostAddress;
            LOG.debug(reason, e);
            serviceStatus = PollStatus.unavailable(reason);
        } catch (InterruptedIOException e) {
            String reason = "did not connect to host with " + tracker;
            LOG.debug(reason);
            serviceStatus = PollStatus.unavailable(reason);
        } catch (IOException e) {
            String reason = "IOException while polling address: " + ipv4Addr;
            LOG.debug(reason, e);
            serviceStatus = PollStatus.unavailable(reason);
        } finally {
            if (socket != null)
                socket.close();
        }
    }
    return serviceStatus;
}

Example 9 with PortUnreachableException

use of java.net.PortUnreachableException in project AppCenter-SDK-Android by Microsoft.

the class HttpUtilsAndroidTest method isRecoverableErrorTest.

@Test
public void isRecoverableErrorTest() {
    assertTrue(isRecoverableError(new EOFException()));
    assertTrue(isRecoverableError(new InterruptedIOException()));
    assertTrue(isRecoverableError(new SocketTimeoutException()));
    assertTrue(isRecoverableError(new SocketException()));
    assertTrue(isRecoverableError(new PortUnreachableException()));
    assertTrue(isRecoverableError(new UnknownHostException()));
    assertTrue(isRecoverableError(new RejectedExecutionException()));
    assertFalse(isRecoverableError(new MalformedURLException()));
    assertFalse(isRecoverableError(new IOException()));
    assertTrue(isRecoverableError(new IOException(new EOFException())));
    assertFalse(isRecoverableError(new IOException(new Exception())));
    for (int i = 0; i <= 4; i++) assertTrue(isRecoverableError(new HttpException(500 + i)));
    for (int i = 0; i <= 6; i++) assertFalse(isRecoverableError(new HttpException(400 + i)));
    assertTrue(isRecoverableError(new HttpException(408)));
    assertFalse(isRecoverableError(new HttpException(413)));
    assertFalse(isRecoverableError(new HttpException(429)));
    assertTrue(isRecoverableError(new SSLException("Write error: ssl=0x59c28f90: I/O error during system call, Connection timed out")));
    assertFalse(isRecoverableError(new SSLException(null, new CertPathValidatorException("Trust anchor for certification path not found."))));
    assertFalse(isRecoverableError(new SSLException("java.lang.RuntimeException: Unexpected error: java.security.InvalidAlgorithmParameterException: the trustAnchors parameter must be non-empty")));
    assertTrue(isRecoverableError(new SSLException("Read error: ssl=0x9dd07200: I/O error during system call, Connection reset by peer")));
    assertTrue(isRecoverableError(new SSLException("SSL handshake aborted: ssl=0x1cc160: I/O error during system call, Connection reset by peer")));
    assertTrue(isRecoverableError(new SSLHandshakeException("java.security.cert.CertPathValidatorException: Trust anchor for certification path not found.")));
    assertTrue(isRecoverableError(new SSLHandshakeException("javax.net.ssl.SSLProtocolException: SSL handshake aborted: ssl=0x870c918: Failure in SSL library, usually a protocol error\nerror:14077410:SSL routines:SSL23_GET_SERVER_HELLO:sslv3 alert handshake failure (external/openssl/ssl/s23_clnt.c:658 0xb7c393a1:0x00000000)")));
}

Example 10 with PortUnreachableException

use of java.net.PortUnreachableException in project webpieces by deanhiller.

the class KeyProcessor method read.

private void read(SelectionKey key, ChannelInfo info) throws IOException {
    if (log.isTraceEnabled())
        log.trace(info.getChannel() + "reading data");
    DataListener in = info.getDataHandler();
    BasChannelImpl channel = (BasChannelImpl) info.getChannel();
    MDCUtil.setMDC(channel.isServerSide(), channel.getChannelId());
    ByteBuffer chunk = pool.nextBuffer(1024);
    try {
        if (logBufferNextRead)
            log.info(channel + " buffer=" + chunk);
        int bytes = channel.readImpl(chunk);
        if (logBufferNextRead) {
            logBufferNextRead = false;
            log.info(channel + " buffer2=" + chunk);
        }
        processBytes(key, info, chunk, bytes);
    } catch (PortUnreachableException e) {
        connectionErrors.increment();
        // listening for udp!!!  log as finer and fire to client to deal with it.
        if (log.isTraceEnabled())
            log.trace("Client sent data to a host or port that is not listening " + "to udp, or udp can't get through to that machine", e);
        in.failure(channel, null, e);
    } catch (NotYetConnectedException e) {
        connectionErrors.increment();
        // this happens in udp when I disconnect after someone had already been streaming me
        // data.  It is supposed to stop listening but selector keeps firing.
        log.error("Can't read until UDPChannel is connected", e);
        in.failure(channel, null, e);
    } catch (IOException e) {
        // kept getting the following exception so I added this as protection
        // NOTE: this exceptionn should never occur.  read should be returning -1
        // but for some reason is returning hte exception instead.
        // WARNING: [server] Processing of key failed, closing channel
        // java.io.IOException: An established connection was aborted by the software in your host machine
        // at sun.nio.ch.SocketDispatcher.read0(Native Method)
        // at sun.nio.ch.SocketDispatcher.read(SocketDispatcher.java:25)
        // at sun.nio.ch.IOUtil.readIntoNativeBuffer(IOUtil.java:233)
        // at sun.nio.ch.IOUtil.read(IOUtil.java:206)
        // at sun.nio.ch.SocketChannelImpl.read(SocketChannelImpl.java:207)
        // at biz.xsoftware.impl.nio.cm.basic.TCPChannelImpl.readImpl(TCPChannelImpl.java:168)
        // at biz.xsoftware.impl.nio.cm.basic.Helper.read(Helper.java:128)
        // at biz.xsoftware.impl.nio.cm.basic.Helper.processKey(Helper.java:77)
        // at biz.xsoftware.impl.nio.cm.basic.Helper.processKeys(Helper.java:43)
        // at biz.xsoftware.impl.nio.cm.basic.SelectorManager2.runLoop(SelectorManager2.java:262)
        // at biz.xsoftware.impl.nio.cm.basic.SelectorManager2$PollingThread.run
        // (SelectorManager2.java:224)
        // another one that landes here is the Connection reset by peer"....
        // Jan 18, 2012 1:00:42 PM biz.xsoftware.impl.nio.cm.basic.Helper read
        // INFO: [stserver] Exception
        // java.io.IOException: Connection reset by peer
        // at sun.nio.ch.FileDispatcher.read0(Native Method)
        // at sun.nio.ch.SocketDispatcher.read(SocketDispatcher.java:39)
        // at sun.nio.ch.IOUtil.readIntoNativeBuffer(IOUtil.java:251)
        // at sun.nio.ch.IOUtil.read(IOUtil.java:224)
        // at sun.nio.ch.SocketChannelImpl.read(SocketChannelImpl.java:254)
        // at biz.xsoftware.impl.nio.cm.basic.chanimpl.SocketChannelImpl.read(SocketChannelImpl.java:65)
        // at biz.xsoftware.impl.nio.cm.basic.BasTCPChannel.readImpl(BasTCPChannel.java:108)
        // at biz.xsoftware.impl.nio.cm.basic.Helper.read(Helper.java:162)
        // at biz.xsoftware.impl.nio.cm.basic.Helper.processKey(Helper.java:104)
        // at biz.xsoftware.impl.nio.cm.basic.Helper.processKeys(Helper.java:51)
        // at biz.xsoftware.impl.nio.cm.basic.SelectorManager2.selectorFired(SelectorManager2.java:253)
        // at biz.xsoftware.impl.nio.cm.basic.nioimpl.SelectorImpl.runLoop(SelectorImpl.java:126)
        // at biz.xsoftware.impl.nio.cm.basic.nioimpl.SelectorImpl$PollingThread.run(SelectorImpl.java:107)
        // One other exception starts with "An existing connection was forcibly closed"
        // in the case of SSL over TCP only, sometimes instead of reading off a -1, this will
        // throw an IOException: "An existing connection was forcibly closed by the remote host"
        // we also close UDPChannels as well on IOException.  Not sure if this is good or not.
        specialConnectionErrors.increment();
        process(key, in, info, chunk, e);
    } catch (NioException e) {
        connectionErrors.increment();
        Throwable cause = e.getCause();
        if (cause instanceof IOException) {
            specialConnectionErrors.increment();
            IOException ioExc = (IOException) cause;
            process(key, in, info, chunk, ioExc);
        } else
            throw e;
    } finally {
        MDCUtil.setMDC(channel.isServerSide(), channel.getChannelId());
    }
}