List of usage examples for com.google.common.util.concurrent SettableFuture isDone
@Override
public boolean isDone()
From source file:com.google.bitcoin.examples.PrintPeers.java
public static void main(String[] args) throws Exception { BriefLogFormatter.init();/*www .j a va 2s . c om*/ System.out.println("=== DNS ==="); printDNS(); System.out.println("=== Version/chain heights ==="); ArrayList<InetAddress> addrs = new ArrayList<InetAddress>(); for (InetSocketAddress peer : dnsPeers) addrs.add(peer.getAddress()); System.out.println("Scanning " + addrs.size() + " peers:"); final NetworkParameters params = MainNetParams.get(); final Object lock = new Object(); final long[] bestHeight = new long[1]; List<ListenableFuture<Void>> futures = Lists.newArrayList(); NioClientManager clientManager = new NioClientManager(); for (final InetAddress addr : addrs) { InetSocketAddress address = new InetSocketAddress(addr, params.getPort()); final Peer peer = new Peer(params, new VersionMessage(params, 0), null, new PeerAddress(address)); final SettableFuture future = SettableFuture.create(); // Once the connection has completed version handshaking ... peer.addEventListener(new AbstractPeerEventListener() { public void onPeerConnected(Peer p, int peerCount) { // Check the chain height it claims to have. VersionMessage ver = peer.getPeerVersionMessage(); long nodeHeight = ver.bestHeight; synchronized (lock) { long diff = bestHeight[0] - nodeHeight; if (diff > 0) { System.out.println("Node is behind by " + diff + " blocks: " + addr); } else if (diff == 0) { System.out.println("Node " + addr + " has " + nodeHeight + " blocks"); bestHeight[0] = nodeHeight; } else if (diff < 0) { System.out.println("Node is ahead by " + Math.abs(diff) + " blocks: " + addr); bestHeight[0] = nodeHeight; } } // Now finish the future and close the connection future.set(null); peer.close(); } public void onPeerDisconnected(Peer p, int peerCount) { if (!future.isDone()) System.out.println("Failed to talk to " + addr); future.set(null); } }); clientManager.openConnection(address, peer); futures.add(future); } // Wait for every tried connection to finish. Futures.successfulAsList(futures).get(); }
From source file:com.google.worldcoin.examples.PrintPeers.java
public static void main(String[] args) throws Exception { BriefLogFormatter.init();//from w w w .j a v a2 s . co m System.out.println("=== DNS ==="); printDNS(); System.out.println("=== Version/chain heights ==="); ArrayList<InetAddress> addrs = new ArrayList<InetAddress>(); for (InetSocketAddress peer : dnsPeers) addrs.add(peer.getAddress()); //addrs.add(convertAddress()); System.out.println("Scanning " + addrs.size() + " peers:"); final NetworkParameters params = MainNetParams.get(); final Object lock = new Object(); final long[] bestHeight = new long[1]; List<ListenableFuture<Void>> futures = Lists.newArrayList(); NioClientManager clientManager = new NioClientManager(); for (final InetAddress addr : addrs) { InetSocketAddress address = new InetSocketAddress(addr, params.getPort()); final Peer peer = new Peer(params, new VersionMessage(params, 0), null, new PeerAddress(address)); final SettableFuture future = SettableFuture.create(); // Once the connection has completed version handshaking ... peer.addEventListener(new AbstractPeerEventListener() { public void onPeerConnected(Peer p, int peerCount) { // Check the chain height it claims to have. VersionMessage ver = peer.getPeerVersionMessage(); long nodeHeight = ver.bestHeight; synchronized (lock) { long diff = bestHeight[0] - nodeHeight; if (diff > 0) { System.out.println("Node is behind by " + diff + " blocks: " + addr); } else if (diff == 0) { System.out.println("Node " + addr + " has " + nodeHeight + " blocks"); bestHeight[0] = nodeHeight; } else if (diff < 0) { System.out.println("Node is ahead by " + Math.abs(diff) + " blocks: " + addr); bestHeight[0] = nodeHeight; } } // Now finish the future and close the connection future.set(null); peer.close(); } public void onPeerDisconnected(Peer p, int peerCount) { if (!future.isDone()) System.out.println("Failed to talk to " + addr); future.set(null); } }); clientManager.start(); clientManager.openConnection(address, peer); futures.add(future); } // Wait for every tried connection to finish. Futures.successfulAsList(futures).get(); }
From source file:com.dogecoin.dogecoinj.examples.PrintPeers.java
public static void main(String[] args) throws Exception { BriefLogFormatter.init();/* ww w.j a v a2 s . co m*/ System.out.println("=== DNS ==="); printDNS(); System.out.println("=== Version/chain heights ==="); ArrayList<InetAddress> addrs = new ArrayList<InetAddress>(); for (InetSocketAddress peer : dnsPeers) addrs.add(peer.getAddress()); System.out.println("Scanning " + addrs.size() + " peers:"); final NetworkParameters params = MainNetParams.get(); final Object lock = new Object(); final long[] bestHeight = new long[1]; List<ListenableFuture<Void>> futures = Lists.newArrayList(); NioClientManager clientManager = new NioClientManager(); for (final InetAddress addr : addrs) { InetSocketAddress address = new InetSocketAddress(addr, params.getPort()); final Peer peer = new Peer(params, new VersionMessage(params, 0), null, new PeerAddress(address)); final SettableFuture<Void> future = SettableFuture.create(); // Once the connection has completed version handshaking ... peer.addEventListener(new AbstractPeerEventListener() { @Override public void onPeerConnected(Peer p, int peerCount) { // Check the chain height it claims to have. VersionMessage ver = peer.getPeerVersionMessage(); long nodeHeight = ver.bestHeight; synchronized (lock) { long diff = bestHeight[0] - nodeHeight; if (diff > 0) { System.out.println("Node is behind by " + diff + " blocks: " + addr); } else if (diff == 0) { System.out.println("Node " + addr + " has " + nodeHeight + " blocks"); bestHeight[0] = nodeHeight; } else if (diff < 0) { System.out.println("Node is ahead by " + Math.abs(diff) + " blocks: " + addr); bestHeight[0] = nodeHeight; } } // Now finish the future and close the connection future.set(null); peer.close(); } @Override public void onPeerDisconnected(Peer p, int peerCount) { if (!future.isDone()) System.out.println("Failed to talk to " + addr); future.set(null); } }); clientManager.openConnection(address, peer); futures.add(future); } // Wait for every tried connection to finish. Futures.successfulAsList(futures).get(); }
From source file:org.guldenj.examples.PrintPeers.java
public static void main(String[] args) throws Exception { BriefLogFormatter.init();//w w w .j a va 2s . co m System.out.println("=== DNS ==="); printDNS(); System.out.println("=== Version/chain heights ==="); ArrayList<InetAddress> addrs = new ArrayList<InetAddress>(); for (InetSocketAddress peer : dnsPeers) addrs.add(peer.getAddress()); System.out.println("Scanning " + addrs.size() + " peers:"); final NetworkParameters params = MainNetParams.get(); final Object lock = new Object(); final long[] bestHeight = new long[1]; List<ListenableFuture<Void>> futures = Lists.newArrayList(); NioClientManager clientManager = new NioClientManager(); for (final InetAddress addr : addrs) { InetSocketAddress address = new InetSocketAddress(addr, params.getPort()); final Peer peer = new Peer(params, new VersionMessage(params, 0), null, new PeerAddress(address)); final SettableFuture<Void> future = SettableFuture.create(); // Once the connection has completed version handshaking ... peer.addConnectedEventListener(new PeerConnectedEventListener() { @Override public void onPeerConnected(Peer p, int peerCount) { // Check the chain height it claims to have. VersionMessage ver = peer.getPeerVersionMessage(); long nodeHeight = ver.bestHeight; synchronized (lock) { long diff = bestHeight[0] - nodeHeight; if (diff > 0) { System.out.println("Node is behind by " + diff + " blocks: " + addr); } else if (diff == 0) { System.out.println("Node " + addr + " has " + nodeHeight + " blocks"); bestHeight[0] = nodeHeight; } else if (diff < 0) { System.out.println("Node is ahead by " + Math.abs(diff) + " blocks: " + addr); bestHeight[0] = nodeHeight; } } // Now finish the future and close the connection future.set(null); peer.close(); } }); peer.addDisconnectedEventListener(new PeerDisconnectedEventListener() { @Override public void onPeerDisconnected(Peer p, int peerCount) { if (!future.isDone()) System.out.println("Failed to talk to " + addr); future.set(null); } }); clientManager.openConnection(address, peer); futures.add(future); } // Wait for every tried connection to finish. Futures.successfulAsList(futures).get(); }
From source file:org.bitcoinj.examples.PrintPeers.java
public static void main(String[] args) throws Exception { BriefLogFormatter.init();// w w w .jav a 2 s . com System.out.println("=== DNS ==="); printDNS(); System.out.println("=== Version/chain heights ==="); ArrayList<InetAddress> addrs = new ArrayList<InetAddress>(); for (InetSocketAddress peer : dnsPeers) addrs.add(peer.getAddress()); System.out.println("Scanning " + addrs.size() + " peers:"); final NetworkParameters params = MainNetParams.get(); final Object lock = new Object(); final long[] bestHeight = new long[1]; List<ListenableFuture<Void>> futures = Lists.newArrayList(); NioClientManager clientManager = new NioClientManager(); for (final InetAddress addr : addrs) { InetSocketAddress address = new InetSocketAddress(addr, params.getPort()); final Peer peer = new Peer(params, new VersionMessage(params, 0), null, new PeerAddress(params, address)); final SettableFuture<Void> future = SettableFuture.create(); // Once the connection has completed version handshaking ... peer.addConnectedEventListener(new PeerConnectedEventListener() { @Override public void onPeerConnected(Peer p, int peerCount) { // Check the chain height it claims to have. VersionMessage ver = peer.getPeerVersionMessage(); long nodeHeight = ver.bestHeight; synchronized (lock) { long diff = bestHeight[0] - nodeHeight; if (diff > 0) { System.out.println("Node is behind by " + diff + " blocks: " + addr); } else if (diff == 0) { System.out.println("Node " + addr + " has " + nodeHeight + " blocks"); bestHeight[0] = nodeHeight; } else if (diff < 0) { System.out.println("Node is ahead by " + Math.abs(diff) + " blocks: " + addr); bestHeight[0] = nodeHeight; } } // Now finish the future and close the connection future.set(null); peer.close(); } }); peer.addDisconnectedEventListener(new PeerDisconnectedEventListener() { @Override public void onPeerDisconnected(Peer p, int peerCount) { if (!future.isDone()) System.out.println("Failed to talk to " + addr); future.set(null); } }); clientManager.openConnection(address, peer); futures.add(future); } // Wait for every tried connection to finish. Futures.successfulAsList(futures).get(); }
From source file:com.continuuity.weave.zookeeper.ZKOperations.java
/** * Watch for the given path until it exists. * @param zkClient The {@link ZKClient} to use. * @param path A ZooKeeper path to watch for existent. *///from w w w. ja v a2s . c om private static void watchExists(final ZKClient zkClient, final String path, final SettableFuture<String> completion) { Futures.addCallback(zkClient.exists(path, new Watcher() { @Override public void process(WatchedEvent event) { if (!completion.isDone()) { watchExists(zkClient, path, completion); } } }), new FutureCallback<Stat>() { @Override public void onSuccess(Stat result) { if (result != null) { completion.set(path); } } @Override public void onFailure(Throwable t) { completion.setException(t); } }); }
From source file:com.continuuity.weave.zookeeper.ZKOperations.java
public static void watchDeleted(final ZKClient zkClient, final String path, final SettableFuture<String> completion) { Futures.addCallback(zkClient.exists(path, new Watcher() { @Override//from ww w . j a v a 2 s .co m public void process(WatchedEvent event) { if (!completion.isDone()) { if (event.getType() == Event.EventType.NodeDeleted) { completion.set(path); } else { watchDeleted(zkClient, path, completion); } } } }), new FutureCallback<Stat>() { @Override public void onSuccess(Stat result) { if (result == null) { completion.set(path); } } @Override public void onFailure(Throwable t) { completion.setException(t); } }); }
From source file:io.prestosql.operator.OperatorContext.java
private static void updateMemoryFuture(ListenableFuture<?> memoryPoolFuture, AtomicReference<SettableFuture<?>> targetFutureReference) { if (!memoryPoolFuture.isDone()) { SettableFuture<?> currentMemoryFuture = targetFutureReference.get(); while (currentMemoryFuture.isDone()) { SettableFuture<?> settableFuture = SettableFuture.create(); // We can't replace one that's not done, because the task may be blocked on that future if (targetFutureReference.compareAndSet(currentMemoryFuture, settableFuture)) { currentMemoryFuture = settableFuture; } else { currentMemoryFuture = targetFutureReference.get(); }/*from w w w .j av a 2 s .co m*/ } SettableFuture<?> finalMemoryFuture = currentMemoryFuture; // Create a new future, so that this operator can un-block before the pool does, if it's moved to a new pool memoryPoolFuture.addListener(() -> finalMemoryFuture.set(null), directExecutor()); } }
From source file:com.google.devtools.kythe.extractors.shared.ExtractorUtils.java
public static List<FileData> processRequiredInputs(Iterable<String> files) throws ExtractionException { final SettableFuture<ExtractionException> exception = SettableFuture.create(); List<FileData> result = Lists.newArrayList(Iterables.transform(files, new Function<String, FileData>() { @Override/*from www. ja v a 2 s .c o m*/ public FileData apply(String path) { byte[] content = new byte[0]; try { content = Files.toByteArray(new File(path)); } catch (IOException e) { exception.set(new ExtractionException(e, false)); } if (content == null) { exception.set(new ExtractionException(String.format("Unable to locate required input %s", path), false)); return null; } String digest = getContentDigest(content); return createFileData(path, digest, content); } })); if (exception.isDone()) { try { throw exception.get(); } catch (InterruptedException e) { throw new ExtractionException(e, true); } catch (ExecutionException e) { throw new ExtractionException(e, false); } } return result; }
From source file:io.crate.jobs.ESJobContext.java
@Override protected void innerClose(@Nullable Throwable t) { if (t != null) { for (SettableFuture<Long> resultFuture : resultFutures) { if (!resultFuture.isDone()) { resultFuture.setException(t); }/*w w w .j a v a2 s . com*/ } } }