Java U类代码示例

import org.apache.ignite.internal.util.typedef.internal.U; //导入依赖的package包/类
/**
 * @param log Log.
 * @param igniteInstanceName Ignite instance name.
 */
public synchronized void logSuggestions(IgniteLogger log, @Nullable String igniteInstanceName) {
    if (disabled)
        return;

    if (!F.isEmpty(perfs) && !suppressed.containsAll(perfs)) {
        U.quietAndInfo(log, "Performance suggestions for grid " +
            (igniteInstanceName == null ? "" : '\'' + igniteInstanceName + '\'') + " (fix if possible)");
        U.quietAndInfo(log, "To disable, set -D" + IGNITE_PERFORMANCE_SUGGESTIONS_DISABLED + "=true");

        for (String s : perfs)
            if (!suppressed.contains(s))
                U.quietAndInfo(log, "  ^-- " + s);

        perfs.clear();
    }

    U.quietAndInfo(log, "Refer to this page for more performance suggestions: " + SUGGESTIONS_LINK);
    U.quietAndInfo(log, "");
}
 

import org.apache.ignite.internal.util.typedef.internal.U; //导入依赖的package包/类
/**
 * Constructs Ignite cache key/value persistence settings.
 *
 * @param settingsRsrc resource containing xml with persistence settings for Ignite cache key/value
 */
public PublicKeyspacePersistenceSettings(Resource settingsRsrc) {
    InputStream in;
    try {
        in = settingsRsrc.getInputStream();
    }
    catch (IOException e) {
        throw new IgniteException("Failed to get input stream for Cassandra persistence settings resource: " +
            settingsRsrc, e);
    }
    try {
        init(loadSettings(in));
    }
    finally {
        U.closeQuiet(in);
    }
}
 

import org.apache.ignite.internal.util.typedef.internal.U; //导入依赖的package包/类
/**
 * Constructs Ignite cache key/value persistence settings.
 *
 * @param settingsRsrc resource containing xml with persistence settings for Ignite cache key/value
 */
public PublicKeyValuePersistenceSettings(Resource settingsRsrc) {
    InputStream in;
    try {
        in = settingsRsrc.getInputStream();
    }
    catch (IOException e) {
        throw new IgniteException("Failed to get input stream for Cassandra persistence settings resource: " +
            settingsRsrc, e);
    }
    try {
        init(loadSettings(in));
    }
    finally {
        U.closeQuiet(in);
    }
}
 

import org.apache.ignite.internal.util.typedef.internal.U; //导入依赖的package包/类
/** {@inheritDoc} */
@Override public void evictAll(Collection<? extends K> keys) {
    A.notNull(keys, "keys");

    if (F.isEmpty(keys))
        return;

    if (keyCheck)
        validateCacheKey(keys);

    GridCacheVersion obsoleteVer = ctx.versions().next();

    try {
        ctx.evicts().batchEvict(keys, obsoleteVer);
    }
    catch (IgniteCheckedException e) {
        U.error(log, "Failed to perform batch evict for keys: " + keys, e);
    }
}
 

import org.apache.ignite.internal.util.typedef.internal.U; //导入依赖的package包/类
/** {@inheritDoc} */
@Override public void writeExternal(ObjectOutput out) throws IOException {
    writeExternalMeta(out);

    out.writeObject(xidVer);
    out.writeBoolean(invalidate);
    out.writeLong(timeout);
    out.writeLong(threadId);
    out.writeLong(startTime);

    U.writeUuid(out, nodeId);

    out.write(isolation.ordinal());
    out.write(concurrency.ordinal());
    out.write(state().ordinal());
}
 

import org.apache.ignite.internal.util.typedef.internal.U; //导入依赖的package包/类
/** {@inheritDoc} */
@Override public Object deserialize(ByteBuffer buf) {
    ByteArrayInputStream stream = null;
    Input in = null;

    try {
        stream = new ByteArrayInputStream(buf.array());
        in = new Input(stream);

        return kryos.get().readClassAndObject(in);
    }
    catch (Throwable e) {
        throw new IllegalStateException("Failed to deserialize object from byte stream", e);
    }
    finally {
        U.closeQuiet(in);
        U.closeQuiet(stream);
    }
}
 

import org.apache.ignite.internal.util.typedef.internal.U; //导入依赖的package包/类
/**
 * @param recovery Recovery descriptor.
 * @param ses Session.
 */
private void sendAckOnTimeout(GridNioRecoveryDescriptor recovery, GridNioSession ses) {
    if (recovery != null && recovery.lastAcknowledged() != recovery.received()) {
        RecoveryLastReceivedMessage msg = new RecoveryLastReceivedMessage(recovery.received());

        if (log.isDebugEnabled()) {
            log.debug("Send recovery acknowledgement on timeout [rmtNode=" + recovery.node().id() +
                ", rcvCnt=" + msg.received() +
                ", lastAcked=" + recovery.lastAcknowledged() + ']');
        }

        try {
            nioSrvr.sendSystem(ses, msg);

            recovery.lastAcknowledged(msg.received());
        }
        catch (IgniteCheckedException e) {
            U.error(log, "Failed to send message: " + e, e);
        }
    }
}
 

import org.apache.ignite.internal.util.typedef.internal.U; //导入依赖的package包/类
/**
 * Test update on the file when it was opened for write(create) and is not closed yet.
 *
 * @throws Exception If failed.
 */
public void testAppendUpdateNoClose() throws Exception {
    if (dual)
        return;

    if (appendSupported()) {
        Map<String, String> props = properties("owner", "group", "0555");

        create(igfs, paths(DIR, SUBDIR), null);

        createFile(igfs, FILE, false);

        IgfsOutputStream os = null;

        try {
            os = igfs.append(FILE, false);

            if (permissionsSupported())
                igfs.update(FILE, props);

            os.close();
        } finally {
            U.closeQuiet(os);
        }
    }
}
 

import org.apache.ignite.internal.util.typedef.internal.U; //导入依赖的package包/类
/**
 * @param rsrcName Class name.
 * @return Grid cached task.
 */
@Nullable public GridDeployment getLocalDeployment(String rsrcName) {
    if (locDep != null)
        return locDep;

    String lambdaEnclosingClsName = U.lambdaEnclosingClassName(rsrcName);

    String clsName = lambdaEnclosingClsName == null ? rsrcName : lambdaEnclosingClsName;

    GridDeploymentMetadata meta = new GridDeploymentMetadata();

    meta.record(true);
    meta.deploymentMode(ctx.config().getDeploymentMode());
    meta.alias(rsrcName);
    meta.className(clsName);
    meta.senderNodeId(ctx.localNodeId());

    return locStore.getDeployment(meta);
}
 

import org.apache.ignite.internal.util.typedef.internal.U; //导入依赖的package包/类
/**
 * Starts the local node and checks for presence of log file.
 * Also checks that this is really a log of a started node.
 *
 * @param id Test-local node ID.
 * @throws Exception If error occurred.
 */
private void checkOneNode(int id) throws Exception {
    try (Ignite ignite = G.start(getConfiguration("grid" + id))) {
        String id8 = U.id8(ignite.cluster().localNode().id());
        String logPath = "work/log/ignite-" + id8 + ".log";
        File logFile = U.resolveIgnitePath(logPath);

        assertNotNull("Failed to resolve path: " + logPath, logFile);
        assertTrue("Log file does not exist: " + logFile, logFile.exists());

        String logContent = U.readFileToString(logFile.getAbsolutePath(), "UTF-8");

        assertTrue("Log file does not contain it's node ID: " + logFile,
            logContent.contains(">>> Local node [ID=" + id8.toUpperCase()));
    }
}
 

import org.apache.ignite.internal.util.typedef.internal.U; //导入依赖的package包/类
/**
 * @param nodeId Primary node ID.
 * @param req Request.
 * @param dhtRes Response to send.
 */
private void sendDhtPrimaryResponse(UUID nodeId,
    GridDhtAtomicAbstractUpdateRequest req,
    GridDhtAtomicUpdateResponse dhtRes) {
    try {
        ctx.io().send(nodeId, dhtRes, ctx.ioPolicy());

        if (msgLog.isDebugEnabled()) {
            msgLog.debug("Sent DHT response [futId=" + req.futureId() +
                ", nearFutId=" + req.nearFutureId() +
                ", writeVer=" + req.writeVersion() +
                ", node=" + nodeId + ']');
        }
    }
    catch (ClusterTopologyCheckedException ignored) {
        U.warn(msgLog, "Failed to send DHT response, node left [futId=" + req.futureId() +
            ", nearFutId=" + req.nearFutureId() +
            ", node=" + nodeId + ']');
    }
    catch (IgniteCheckedException e) {
        U.error(msgLog, "Failed to send DHT near response [futId=" + req.futureId() +
            ", nearFutId=" + req.nearFutureId() +
            ", node=" + nodeId +
            ", res=" + dhtRes + ']', e);
    }
}
 

import org.apache.ignite.internal.util.typedef.internal.U; //导入依赖的package包/类
/**
 * Closes unreachable iterators.
 */
public void checkWeakQueue() {
    for (Reference itRef = refQueue.poll(); itRef != null;
        itRef = refQueue.poll()) {
        try {
            WeakReference weakRef = (WeakReference)itRef;

            AutoCloseable rsrc = refs.remove(weakRef);

            if (rsrc != null)
                rsrc.close();
        }
        catch (Exception e) {
            U.error(log, "Failed to close iterator.", e);
        }
    }
}
 

import org.apache.ignite.internal.util.typedef.internal.U; //导入依赖的package包/类
/** {@inheritDoc} */
@Override public long get() {
    checkRemoved();

    try {
        GridCacheAtomicLongValue val = cacheView.get(key);

        if (val == null)
            throw new IgniteException("Failed to find atomic long: " + name);

        return val.get();
    }
    catch (IgniteCheckedException e) {
        throw U.convertException(e);
    }
}
 

import org.apache.ignite.internal.util.typedef.internal.U; //导入依赖的package包/类
/**
 * @param cache Cache.
 * @param startKey Start key.
 */
private void doTestDeadlocksTxOnPrimary(IgniteCache cache, Object startKey) {
    try {
        awaitPartitionMapExchange();

        doTestDeadlock(3, false, false, startKey, true);

        doTestDeadlock(4, false, false, startKey, true);
    }
    catch (Throwable e) {
        U.error(log, "Unexpected exception: ", e);

        //TODO "if" statement will be removed after fixing https://issues.apache.org/jira/browse/IGNITE-6445
        if (!e.getMessage().equals("Failed to detect deadlock"))
            fail();
    }
    finally {
        if (cache != null)
            cache.destroy();
    }
}
 

import org.apache.ignite.internal.util.typedef.internal.U; //导入依赖的package包/类
/** {@inheritDoc} */
@Override public void setNodeId(UUID nodeId) {
    A.notNull(nodeId, "nodeId");

    this.nodeId = nodeId;

    // Set nodeId as system variable to be used at configuration.
    System.setProperty(NODE_ID, U.id8(nodeId));

    if (inited) {
        final LoggerContext ctx = impl.getContext();

        synchronized (mux) {
            inited = false;
        }

        addConsoleAppenderIfNeeded(new C1<Boolean, Logger>() {
            @Override public Logger apply(Boolean init) {
                if (init)
                    ctx.reconfigure();

                return (Logger)LogManager.getRootLogger();
            }
        });
    }
}