本文整理匯總了Java中java.util.concurrent.ConcurrentNavigableMap.firstKey方法的典型用法代碼示例。如果您正苦於以下問題：Java ConcurrentNavigableMap.firstKey方法的具體用法？Java ConcurrentNavigableMap.firstKey怎麽用？Java ConcurrentNavigableMap.firstKey使用的例子？那麽, 這裏精選的方法代碼示例或許可以為您提供幫助。您也可以進一步了解該方法所在類java.util.concurrent.ConcurrentNavigableMap的用法示例。
在下文中一共展示了ConcurrentNavigableMap.firstKey方法的2個代碼示例，這些例子默認根據受歡迎程度排序。您可以為喜歡或者感覺有用的代碼點讚，您的評價將有助於係統推薦出更棒的Java代碼示例。
示例1: resolveByUuid
import java.util.concurrent.ConcurrentNavigableMap; //導入方法依賴的package包/類
@Override
public Optional<ServerAddress> resolveByUuid(UUID uuid) {
Assert.notNull(uuid);
if (circle.isEmpty()) {
return Optional.empty();
}
Long hash = hashFunction.newHasher().putLong(uuid.getMostSignificantBits()).putLong(uuid.getLeastSignificantBits())
.hash().asLong();
if (!circle.containsKey(hash)) {
ConcurrentNavigableMap<Long, ServerInstance> tailMap = circle.tailMap(hash);
hash = tailMap.isEmpty() ? circle.firstKey() : tailMap.firstKey();
}
ServerInstance result = circle.get(hash);
if (!currentServer.equals(result)) {
return Optional.of(result.getServerAddress());
} else {
return Optional.empty();
}
}
示例2: testCheckCommit
import java.util.concurrent.ConcurrentNavigableMap; //導入方法依賴的package包/類
@Test
// Validate all the commit check return codes OpenFileCtx.COMMIT_STATUS, which
// includes COMMIT_FINISHED, COMMIT_WAIT, COMMIT_INACTIVE_CTX,
// COMMIT_INACTIVE_WITH_PENDING_WRITE, COMMIT_ERROR, and COMMIT_DO_SYNC.
public void testCheckCommit() throws IOException {
DFSClient dfsClient = Mockito.mock(DFSClient.class);
Nfs3FileAttributes attr = new Nfs3FileAttributes();
HdfsDataOutputStream fos = Mockito.mock(HdfsDataOutputStream.class);
Mockito.when(fos.getPos()).thenReturn((long) 0);
NfsConfiguration conf = new NfsConfiguration();
conf.setBoolean(NfsConfigKeys.LARGE_FILE_UPLOAD, false);
OpenFileCtx ctx = new OpenFileCtx(fos, attr, "/dumpFilePath", dfsClient,
new ShellBasedIdMapping(conf), false, conf);
COMMIT_STATUS ret;
// Test inactive open file context
ctx.setActiveStatusForTest(false);
Channel ch = Mockito.mock(Channel.class);
ret = ctx.checkCommit(dfsClient, 0, ch, 1, attr, false);
Assert.assertTrue(ret == COMMIT_STATUS.COMMIT_INACTIVE_CTX);
ctx.getPendingWritesForTest().put(new OffsetRange(5, 10),
new WriteCtx(null, 0, 0, 0, null, null, null, 0, false, null));
ret = ctx.checkCommit(dfsClient, 0, ch, 1, attr, false);
Assert.assertTrue(ret == COMMIT_STATUS.COMMIT_INACTIVE_WITH_PENDING_WRITE);
// Test request with non zero commit offset
ctx.setActiveStatusForTest(true);
Mockito.when(fos.getPos()).thenReturn((long) 10);
ctx.setNextOffsetForTest(10);
COMMIT_STATUS status = ctx.checkCommitInternal(5, null, 1, attr, false);
Assert.assertTrue(status == COMMIT_STATUS.COMMIT_DO_SYNC);
// Do_SYNC state will be updated to FINISHED after data sync
ret = ctx.checkCommit(dfsClient, 5, ch, 1, attr, false);
Assert.assertTrue(ret == COMMIT_STATUS.COMMIT_FINISHED);
status = ctx.checkCommitInternal(10, ch, 1, attr, false);
Assert.assertTrue(status == COMMIT_STATUS.COMMIT_DO_SYNC);
ret = ctx.checkCommit(dfsClient, 10, ch, 1, attr, false);
Assert.assertTrue(ret == COMMIT_STATUS.COMMIT_FINISHED);
ConcurrentNavigableMap<Long, CommitCtx> commits = ctx
.getPendingCommitsForTest();
Assert.assertTrue(commits.size() == 0);
ret = ctx.checkCommit(dfsClient, 11, ch, 1, attr, false);
Assert.assertTrue(ret == COMMIT_STATUS.COMMIT_WAIT);
Assert.assertTrue(commits.size() == 1);
long key = commits.firstKey();
Assert.assertTrue(key == 11);
// Test request with zero commit offset
commits.remove(new Long(11));
// There is one pending write [5,10]
ret = ctx.checkCommit(dfsClient, 0, ch, 1, attr, false);
Assert.assertTrue(ret == COMMIT_STATUS.COMMIT_WAIT);
Assert.assertTrue(commits.size() == 1);
key = commits.firstKey();
Assert.assertTrue(key == 9);
// Empty pending writes
ctx.getPendingWritesForTest().remove(new OffsetRange(5, 10));
ret = ctx.checkCommit(dfsClient, 0, ch, 1, attr, false);
Assert.assertTrue(ret == COMMIT_STATUS.COMMIT_FINISHED);
}