Java TokenMetadata.getEndpoint方法代码示例

import org.apache.cassandra.locator.TokenMetadata; //导入方法依赖的package包/类
private static Collection<Token> adjustForCrossDatacenterClashes(final TokenMetadata tokenMetadata,
                                                                 StrategyAdapter strategy, Collection<Token> tokens)
{
    List<Token> filtered = Lists.newArrayListWithCapacity(tokens.size());

    for (Token t : tokens)
    {
        while (tokenMetadata.getEndpoint(t) != null)
        {
            InetAddress other = tokenMetadata.getEndpoint(t);
            if (strategy.inAllocationRing(other))
                throw new ConfigurationException(String.format("Allocated token %s already assigned to node %s. Is another node also allocating tokens?", t, other));
            t = t.increaseSlightly();
        }
        filtered.add(t);
    }
    return filtered;
}
 

import org.apache.cassandra.locator.TokenMetadata; //导入方法依赖的package包/类
/**
 * if initialtoken was specified, use that (split on comma).
 * otherwise, if num_tokens == 1, pick a token to assume half the load of the most-loaded node.
 * else choose num_tokens tokens at random
 */
public static Collection<Token> getBootstrapTokens(final TokenMetadata metadata) throws ConfigurationException
{
    Collection<String> initialTokens = DatabaseDescriptor.getInitialTokens();
    // if user specified tokens, use those
    if (initialTokens.size() > 0)
    {
        logger.debug("tokens manually specified as {}",  initialTokens);
        List<Token> tokens = new ArrayList<Token>(initialTokens.size());
        for (String tokenString : initialTokens)
        {
            Token token = StorageService.getPartitioner().getTokenFactory().fromString(tokenString);
            if (metadata.getEndpoint(token) != null)
                throw new ConfigurationException("Bootstrapping to existing token " + tokenString + " is not allowed (decommission/removenode the old node first).");
            tokens.add(token);
        }
        return tokens;
    }

    int numTokens = DatabaseDescriptor.getNumTokens();
    if (numTokens < 1)
        throw new ConfigurationException("num_tokens must be >= 1");

    if (numTokens == 1)
        logger.warn("Picking random token for a single vnode.  You should probably add more vnodes; failing that, you should probably specify the token manually");

    return getRandomTokens(metadata, numTokens);
}
 

import org.apache.cassandra.locator.TokenMetadata; //导入方法依赖的package包/类
public static Collection<Token> getRandomTokens(TokenMetadata metadata, int numTokens)
{
    Set<Token> tokens = new HashSet<Token>(numTokens);
    while (tokens.size() < numTokens)
    {
        Token token = StorageService.getPartitioner().getRandomToken();
        if (metadata.getEndpoint(token) == null)
            tokens.add(token);
    }
    return tokens;
}
 

import org.apache.cassandra.locator.TokenMetadata; //导入方法依赖的package包/类
/**
 * if initialtoken was specified, use that (split on comma).
 * otherwise, if num_tokens == 1, pick a token to assume half the load of the most-loaded node.
 * else choose num_tokens tokens at random
 */
public static Collection<Token> getBootstrapTokens(final TokenMetadata metadata, Map<InetAddress, Double> load) throws ConfigurationException
{
    Collection<String> initialTokens = DatabaseDescriptor.getInitialTokens();
    // if user specified tokens, use those
    if (initialTokens.size() > 0)
    {
        logger.debug("tokens manually specified as {}",  initialTokens);
        List<Token> tokens = new ArrayList<Token>(initialTokens.size());
        for (String tokenString : initialTokens)
        {
            Token token = StorageService.getPartitioner().getTokenFactory().fromString(tokenString);
            if (metadata.getEndpoint(token) != null)
                throw new ConfigurationException("Bootstraping to existing token " + tokenString + " is not allowed (decommission/removetoken the old node first).");
            tokens.add(token);
        }
        return tokens;
    }

    int numTokens = DatabaseDescriptor.getNumTokens();
    if (numTokens < 1)
        throw new ConfigurationException("num_tokens must be >= 1");

    if (numTokens == 1)
        logger.warn("Picking random token for a single vnode.  You should probably add more vnodes; failing that, you should probably specify the token manually");

    return getRandomTokens(metadata, numTokens);
}
 

import org.apache.cassandra.locator.TokenMetadata; //导入方法依赖的package包/类
private static Collection<Token> getSpecifiedTokens(final TokenMetadata metadata,
                                                    Collection<String> initialTokens)
{
    logger.trace("tokens manually specified as {}",  initialTokens);
    List<Token> tokens = new ArrayList<>(initialTokens.size());
    for (String tokenString : initialTokens)
    {
        Token token = metadata.partitioner.getTokenFactory().fromString(tokenString);
        if (metadata.getEndpoint(token) != null)
            throw new ConfigurationException("Bootstrapping to existing token " + tokenString + " is not allowed (decommission/removenode the old node first).");
        tokens.add(token);
    }
    return tokens;
}
 

import org.apache.cassandra.locator.TokenMetadata; //导入方法依赖的package包/类
public static Collection<Token> getRandomTokens(TokenMetadata metadata, int numTokens)
{
    Set<Token> tokens = new HashSet<>(numTokens);
    while (tokens.size() < numTokens)
    {
        Token token = metadata.partitioner.getRandomToken();
        if (metadata.getEndpoint(token) == null)
            tokens.add(token);
    }
    return tokens;
}