List of usage examples for java.net ConnectException ConnectException
public ConnectException(String msg)
From source file:org.apache.camel.component.netty.NettyProducer.java
protected Channel openChannel(ChannelFuture channelFuture) throws Exception { // blocking for channel to be done if (LOG.isTraceEnabled()) { LOG.trace("Waiting for operation to complete {} for {} millis", channelFuture, configuration.getConnectTimeout()); }//w w w.j a va 2 s .c o m // here we need to wait it in other thread final CountDownLatch channelLatch = new CountDownLatch(1); channelFuture.addListener(new ChannelFutureListener() { @Override public void operationComplete(ChannelFuture cf) throws Exception { channelLatch.countDown(); } }); try { channelLatch.await(configuration.getConnectTimeout(), TimeUnit.MILLISECONDS); } catch (InterruptedException ex) { throw new CamelException( "Interrupted while waiting for " + "connection to " + configuration.getAddress()); } if (!channelFuture.isDone() || !channelFuture.isSuccess()) { ConnectException cause = new ConnectException("Cannot connect to " + configuration.getAddress()); if (channelFuture.getCause() != null) { cause.initCause(channelFuture.getCause()); } throw cause; } Channel answer = channelFuture.getChannel(); // to keep track of all channels in use ALL_CHANNELS.add(answer); if (LOG.isDebugEnabled()) { LOG.debug("Creating connector to address: {}", configuration.getAddress()); } return answer; }
From source file:com.evolveum.icf.dummy.resource.DummyResource.java
public Collection<DummyPrivilege> listPrivileges() throws ConnectException, FileNotFoundException { if (getBreakMode == BreakMode.NONE) { return privileges.values(); } else if (schemaBreakMode == BreakMode.NETWORK) { throw new ConnectException("Network error (simulated error)"); } else if (schemaBreakMode == BreakMode.IO) { throw new FileNotFoundException("IO error (simulated error)"); } else if (schemaBreakMode == BreakMode.GENERIC) { // The connector will react with generic exception throw new IllegalArgumentException("Generic error (simulated error)"); } else if (schemaBreakMode == BreakMode.RUNTIME) { // The connector will just pass this up throw new IllegalStateException("Generic error (simulated error)"); } else if (schemaBreakMode == BreakMode.UNSUPPORTED) { throw new UnsupportedOperationException("Not supported (simulated error)"); } else {//from w ww.j a va2s . com // This is a real error. Use this strange thing to make sure it passes up throw new RuntimeException("Unknown schema break mode " + schemaBreakMode); } }
From source file:com.buaa.cfs.utils.NetUtils.java
/** * Like {@link NetUtils#connect(Socket, SocketAddress, int)} but also takes a local address and port to bind the * socket to./*from w w w .jav a 2 s . c om*/ * * @param socket * @param endpoint the remote address * @param localAddr the local address to bind the socket to * @param timeout timeout in milliseconds */ public static void connect(Socket socket, SocketAddress endpoint, SocketAddress localAddr, int timeout) throws IOException { if (socket == null || endpoint == null || timeout < 0) { throw new IllegalArgumentException("Illegal argument for connect()"); } SocketChannel ch = socket.getChannel(); if (localAddr != null) { Class localClass = localAddr.getClass(); Class remoteClass = endpoint.getClass(); Preconditions.checkArgument(localClass.equals(remoteClass), "Local address %s must be of same family as remote address %s.", localAddr, endpoint); socket.bind(localAddr); } try { if (ch == null) { // let the default implementation handle it. socket.connect(endpoint, timeout); } else { // SocketIOWithTimeout.connect(ch, endpoint, timeout); } } catch (SocketTimeoutException ste) { // throw new ConnectTimeoutException(ste.getMessage()); } // There is a very rare case allowed by the TCP specification, such that // if we are trying to connect to an endpoint on the local machine, // and we end up choosing an ephemeral port equal to the destination port, // we will actually end up getting connected to ourself (ie any data we // send just comes right back). This is only possible if the target // daemon is down, so we'll treat it like connection refused. if (socket.getLocalPort() == socket.getPort() && socket.getLocalAddress().equals(socket.getInetAddress())) { LOG.info("Detected a loopback TCP socket, disconnecting it"); socket.close(); throw new ConnectException("Localhost targeted connection resulted in a loopback. " + "No daemon is listening on the target port."); } }
From source file:org.jnode.net.ipv4.tcp.TCPControlBlock.java
/** * Active connect to a foreign address. This method blocks until the * connection has been established.//w ww . j a v a 2 s . c o m * * @throws SocketException */ public synchronized void appConnect(IPv4Address fAddr, int fPort) throws SocketException { if (!isState(TCPS_CLOSED)) { throw new SocketException("Invalid connection state " + getStateName()); } super.connect(getLocalAddress(), fAddr, fPort); for (int attempt = 0; attempt < TCP_MAXCONNECT; attempt++) { try { // Send the SYN sendSYN(); // Update the state setState(TCPS_SYN_SENT); // Wait for an ESTABLISHED state waitUntilState(TCPS_ESTABLISHED, timeout); // Check for reset condition if (isRefused()) { throw new ConnectException("Connection refused"); } if (DEBUG) { log.debug("Connected to " + fAddr + ":" + fPort); } return; } catch (TimeoutException ex) { // Ignore and just try again } } // Not succeeded to connect throw new ConnectException("Connection request timeout"); }
From source file:com.evolveum.icf.dummy.resource.DummyResource.java
private synchronized <T extends DummyObject> String addObject(Map<String, T> map, T newObject) throws ObjectAlreadyExistsException, ConnectException, FileNotFoundException, SchemaViolationException { if (addBreakMode == BreakMode.NONE) { // just go on } else if (addBreakMode == BreakMode.NETWORK) { throw new ConnectException("Network error during add (simulated error)"); } else if (addBreakMode == BreakMode.IO) { throw new FileNotFoundException("IO error during add (simulated error)"); } else if (addBreakMode == BreakMode.GENERIC) { // The connector will react with generic exception throw new IllegalArgumentException("Generic error during add (simulated error)"); } else if (addBreakMode == BreakMode.RUNTIME) { // The connector will just pass this up throw new IllegalStateException("Generic rutime error during add (simulated error)"); } else if (addBreakMode == BreakMode.UNSUPPORTED) { throw new UnsupportedOperationException("Unsupported operation: add (simulated error)"); } else {//from www . j a va 2 s. c om // This is a real error. Use this strange thing to make sure it passes up throw new RuntimeException("Unknown break mode " + addBreakMode); } Class<? extends DummyObject> type = newObject.getClass(); String normalName = normalize(newObject.getName()); if (normalName != null && forbiddenNames != null && forbiddenNames.contains(normalName)) { throw new ObjectAlreadyExistsException(normalName + " is forbidden to use as an object name"); } String newId = UUID.randomUUID().toString(); newObject.setId(newId); if (allObjects.containsKey(newId)) { throw new IllegalStateException("The hell is frozen over. The impossible has happened. ID " + newId + " already exists (" + type.getSimpleName() + " with identifier " + normalName + ")"); } //this is "resource-generated" attribute (used to simulate resource which generate by default attributes which we need to sync) if (generateDefaultValues) { // int internalId = allObjects.size(); newObject.addAttributeValue(DummyAccount.ATTR_INTERNAL_ID, new Random().nextInt()); } String mapKey; if (enforceUniqueName) { mapKey = normalName; } else { mapKey = newId; } if (map.containsKey(mapKey)) { throw new ObjectAlreadyExistsException( type.getSimpleName() + " with name '" + normalName + "' already exists"); } newObject.setResource(this); map.put(mapKey, newObject); allObjects.put(newId, newObject); if (syncStyle != DummySyncStyle.NONE) { int syncToken = nextSyncToken(); DummyDelta delta = new DummyDelta(syncToken, type, newId, newObject.getName(), DummyDeltaType.ADD); deltas.add(delta); } return newObject.getName(); }
From source file:org.jboss.processFlow.knowledgeService.BaseKnowledgeSessionBean.java
protected synchronized void createKnowledgeBaseViaKnowledgeAgent(boolean forceRefresh) throws ConnectException { log.info("createKnowledgeBaseViaKnowledgeAgent() forceRefresh = " + forceRefresh); if (kbase != null && !forceRefresh) return;/*w ww.j a v a 2 s. com*/ if (kagent != null) { kagent.dispose(); kagent = null; } // investigate: List<String> guvnorPackages = guvnorUtils.getBuiltPackageNames(); // http://ratwateribm:8080/jboss-brms/org.drools.guvnor.Guvnor/package/org.jboss.processFlow/test-pfp-snapshot if (!guvnorUtils.guvnorExists()) { StringBuilder sBuilder = new StringBuilder(); sBuilder.append(guvnorUtils.getGuvnorProtocol()); sBuilder.append("://"); sBuilder.append(guvnorUtils.getGuvnorHost()); sBuilder.append("/"); sBuilder.append(guvnorUtils.getGuvnorSubdomain()); sBuilder.append("/rest/packages/"); throw new ConnectException( "createKnowledgeBase() cannot connect to guvnor at URL : " + sBuilder.toString()); } // for polling of guvnor to occur, the polling and notifier services must be started ResourceChangeScannerConfiguration sconf = ResourceFactory.getResourceChangeScannerService() .newResourceChangeScannerConfiguration(); // Do not start change set notifications Integer droolsResourceScannerIntervalValue = -1; try { droolsResourceScannerIntervalValue = Integer.valueOf(droolsResourceScannerInterval); } catch (NumberFormatException nfe) { log.error("DroolsResourceScannerInterval is not an integer: " + droolsResourceScannerInterval, nfe); } if (droolsResourceScannerIntervalValue > 0) { sconf.setProperty("drools.resource.scanner.interval", droolsResourceScannerInterval); ResourceFactory.getResourceChangeScannerService().configure(sconf); ResourceFactory.getResourceChangeScannerService().start(); ResourceFactory.getResourceChangeNotifierService().start(); } KnowledgeAgentConfiguration aconf = KnowledgeAgentFactory.newKnowledgeAgentConfiguration(); // implementation = org.drools.agent.impl.KnowledgeAgentConfigurationImpl /* - incremental change set processing enabled - will create a single KnowledgeBase and always refresh that same instance */ aconf.setProperty("drools.agent.newInstance", "false"); if (droolsResourceScannerIntervalValue < 0) { aconf.setProperty("drools.agent.scanResources", Boolean.FALSE.toString()); aconf.setProperty("drools.agent.scanDirectories", Boolean.FALSE.toString()); aconf.setProperty("drools.agent.monitorChangeSetEvents", Boolean.FALSE.toString()); } /* -- Knowledge Agent provides automatic loading, caching and re-loading of resources -- the knowledge agent can update or rebuild this knowledge base as the resources it uses are changed */ kagent = KnowledgeAgentFactory.newKnowledgeAgent("Guvnor default", aconf); StringReader sReader = guvnorUtils.createChangeSet(); try { guvnorChangeSet = IOUtils.toString(sReader); sReader.close(); } catch (Exception x) { x.printStackTrace(); } kagent.applyChangeSet(ResourceFactory.newByteArrayResource(guvnorChangeSet.getBytes())); /* - set KnowledgeBase as instance variable to this mbean for use throughout all functionality of this service - a knowledge base is a collection of compiled definitions, such as rules and processes, which are compiled using the KnowledgeBuilder - the knowledge base itself does not contain instance data, known as facts - instead, sessions are created from the knowledge base into which data can be inserted and where process instances may be started - creating the knowledge base can be heavy, whereas session creation is very light : http://blog.athico.com/2011/09/small-efforts-big-improvements.html - a knowledge base is also serializable, allowing for it to be stored */ kbase = kagent.getKnowledgeBase(); lastKAgentRefresh = System.currentTimeMillis(); log.info("createKnowledgeBaseViaKnowledgeAgent() just refreshed kBase via knowledgeAgent"); }
From source file:org.apache98.hadoop.hbase.ipc.RpcClient.java
/** * Take an IOException and the address we were trying to connect to * and return an IOException with the input exception as the cause. * The new exception provides the stack trace of the place where * the exception is thrown and some extra diagnostics information. * If the exception is ConnectException or SocketTimeoutException, * return a new one of the same type; Otherwise return an IOException. * /* w ww . j a va 2 s. c o m*/ * @param addr * target address * @param exception * the relevant exception * @return an exception to throw */ protected IOException wrapException(InetSocketAddress addr, IOException exception) { if (exception instanceof ConnectException) { // connection refused; include the host:port in the error return (ConnectException) new ConnectException( "Call to " + addr + " failed on connection exception: " + exception).initCause(exception); } else if (exception instanceof SocketTimeoutException) { return (SocketTimeoutException) new SocketTimeoutException( "Call to " + addr + " failed because " + exception).initCause(exception); } else { return (IOException) new IOException("Call to " + addr + " failed on local exception: " + exception) .initCause(exception); } }
From source file:org.kawanfw.commons.client.http.HttpTransferOne.java
/** * Send a String to the HTTP server using servlet defined by url and return * the corresponding input stream// w w w . j av a2s. c o m * * * @param requestParams * the request parameters list with (parameter, value) * @param fileLength * the file length (for the progress indicator). If 0, will not * be used * @param file * the file to create on the client side (PC) * * @throws IllegalArgumentException * if the file to download is null * @throws UnknownHostException * Host url (http://www.acme.org) does not exists or no Internet * Connection. * @throws ConnectException * The Host is correct but the Servlet * (http://www.acme.org/Servlet) failed with a status <> OK * (200). * @throws IOException * For all other IO / Network / System Error */ @Override public InputStream getInputStream(List<SimpleNameValuePair> requestParams) throws IllegalArgumentException, UnknownHostException, ConnectException, RemoteException, IOException { InputStream in = null; statusCode = 0; // Reset it! m_responseBody = null; // Reset it! URL theUrl; theUrl = new URL(this.url); conn = buildHttpUrlConnection(theUrl); conn.setRequestMethod(POST); conn.setDoOutput(true); debug("requestParams: " + requestParams); TimeoutConnector timeoutConnector = new TimeoutConnector(conn, connectTimeout); OutputStream os = timeoutConnector.getOutputStream(); Writer writer = new BufferedWriter(new OutputStreamWriter(os, "UTF-8")); writer.write(getPostDataString(requestParams)); // writer.flush(); writer.close(); os.close(); // Analyze the error after request execution statusCode = conn.getResponseCode(); if (statusCode != HttpURLConnection.HTTP_OK) { // The server is up, but the servlet is not accessible throw new ConnectException( theUrl + ": Servlet failed: " + conn.getResponseMessage() + " status: " + statusCode); } if ("gzip".equals(conn.getContentEncoding())) { in = new GZIPInputStream(conn.getInputStream()); } else { in = conn.getInputStream(); } return in; }
From source file:com.cws.esolutions.security.dao.usermgmt.impl.LDAPUserManager.java
/** * @see com.cws.esolutions.security.dao.usermgmt.interfaces.UserManager#listUserAccounts() *//*from w w w . j ava 2 s . c om*/ public synchronized List<String[]> listUserAccounts() throws UserManagementException { final String methodName = LDAPUserManager.CNAME + "#listUserAccounts() throws UserManagementException"; if (DEBUG) { DEBUGGER.debug(methodName); } List<String[]> results = null; LDAPConnection ldapConn = null; LDAPConnectionPool ldapPool = null; try { ldapPool = (LDAPConnectionPool) svcBean.getAuthDataSource(); if (DEBUG) { DEBUGGER.debug("LDAPConnectionPool: {}", ldapPool); } if (ldapPool.isClosed()) { throw new ConnectException("Failed to create LDAP connection using the specified information"); } ldapConn = ldapPool.getConnection(); if (DEBUG) { DEBUGGER.debug("LDAPConnection: {}", ldapConn); } if (!(ldapConn.isConnected())) { throw new ConnectException("Failed to create LDAP connection using the specified information"); } SearchRequest searchReq = new SearchRequest( repoConfig.getRepositoryUserBase() + "," + repoConfig.getRepositoryBaseDN(), SearchScope.SUB, Filter.create("(&(objectClass=" + repoConfig.getBaseObject() + "))")); if (DEBUG) { DEBUGGER.debug("searchRequest: {}", searchReq); } SearchResult searchResult = ldapConn.search(searchReq); if (DEBUG) { DEBUGGER.debug("searchResult: {}", searchResult); } if (searchResult.getResultCode() == ResultCode.SUCCESS) { results = new ArrayList<String[]>(); for (SearchResultEntry entry : searchResult.getSearchEntries()) { String[] userData = new String[] { entry.getAttributeValue(userAttributes.getCommonName()), entry.getAttributeValue(userAttributes.getUserId()) }; if (DEBUG) { for (String str : userData) { DEBUGGER.debug(str); } } results.add(userData); } } else { throw new ConnectException("No users were located with the search data provided"); } } catch (LDAPException lx) { throw new UserManagementException(lx.getMessage(), lx); } catch (ConnectException cx) { throw new UserManagementException(cx.getMessage(), cx); } finally { if ((ldapPool != null) && ((ldapConn != null) && (ldapConn.isConnected()))) { ldapConn.close(); ldapPool.releaseConnection(ldapConn); } } return results; }
From source file:com.evolveum.icf.dummy.resource.DummyResource.java
private synchronized <T extends DummyObject> void deleteObjectByName(Class<T> type, Map<String, T> map, String name) throws ObjectDoesNotExistException, ConnectException, FileNotFoundException { if (deleteBreakMode == BreakMode.NONE) { // go on/*from w w w .j a va 2s.c om*/ } else if (deleteBreakMode == BreakMode.NETWORK) { throw new ConnectException("Network error (simulated error)"); } else if (deleteBreakMode == BreakMode.IO) { throw new FileNotFoundException("IO error (simulated error)"); } else if (deleteBreakMode == BreakMode.GENERIC) { // The connector will react with generic exception throw new IllegalArgumentException("Generic error (simulated error)"); } else if (deleteBreakMode == BreakMode.RUNTIME) { // The connector will just pass this up throw new IllegalStateException("Generic error (simulated error)"); } else if (deleteBreakMode == BreakMode.UNSUPPORTED) { throw new UnsupportedOperationException("Not supported (simulated error)"); } else { // This is a real error. Use this strange thing to make sure it passes up throw new RuntimeException("Unknown schema break mode " + schemaBreakMode); } String normalName = normalize(name); T existingObject; if (!enforceUniqueName) { throw new IllegalStateException("Whoops! got into deleteObjectByName without enforceUniqueName"); } if (map.containsKey(normalName)) { existingObject = map.get(normalName); map.remove(normalName); allObjects.remove(existingObject.getId()); } else { throw new ObjectDoesNotExistException( type.getSimpleName() + " with name '" + normalName + "' does not exist"); } if (syncStyle != DummySyncStyle.NONE) { int syncToken = nextSyncToken(); DummyDelta delta = new DummyDelta(syncToken, type, existingObject.getId(), name, DummyDeltaType.DELETE); deltas.add(delta); } }