Examples with UntypedResultSet org.apache.cassandra.cql3.UntypedResultSet used on opensource projects

Example 81 with UntypedResultSet

use of org.apache.cassandra.cql3.UntypedResultSet in project cassandra by apache.

the class PasswordAuthenticator method queryHashedPassword.

private String queryHashedPassword(String username) {
    try {
        QueryOptions options = QueryOptions.forInternalCalls(consistencyForRoleRead(username), Lists.newArrayList(ByteBufferUtil.bytes(username)));
        ResultMessage.Rows rows = select(authenticateStatement, options);
        // invalidate the cache and throw an appropriate exception.
        if (rows.result.isEmpty())
            return NO_SUCH_CREDENTIAL;
        UntypedResultSet result = UntypedResultSet.create(rows.result);
        if (!result.one().has(SALTED_HASH))
            return NO_SUCH_CREDENTIAL;
        return result.one().getString(SALTED_HASH);
    } catch (RequestExecutionException e) {
        throw new AuthenticationException("Unable to perform authentication: " + e.getMessage(), e);
    }
}

Example 82 with UntypedResultSet

use of org.apache.cassandra.cql3.UntypedResultSet in project cassandra by apache.

the class SystemKeyspace method getRack.

/**
 * Gets the stored rack for the local node, or null if none have been set yet.
 */
public static String getRack() {
    String req = "SELECT rack FROM system.%s WHERE key='%s'";
    UntypedResultSet result = executeInternal(format(req, LOCAL, LOCAL));
    // Look up the Rack (return it if found)
    if (!result.isEmpty() && result.one().has("rack"))
        return result.one().getString("rack");
    return null;
}

Example 83 with UntypedResultSet

use of org.apache.cassandra.cql3.UntypedResultSet in project cassandra by apache.

the class SystemKeyspace method loadPreparedStatement.

public static int loadPreparedStatement(MD5Digest digest, TriFunction<MD5Digest, String, String, Boolean> onLoaded) {
    String query = String.format("SELECT prepared_id, logged_keyspace, query_string FROM %s.%s WHERE prepared_id = ?", SchemaConstants.SYSTEM_KEYSPACE_NAME, PREPARED_STATEMENTS);
    UntypedResultSet resultSet = executeOnceInternal(query, digest.byteBuffer());
    int counter = 0;
    for (UntypedResultSet.Row row : resultSet) {
        if (onLoaded.accept(MD5Digest.wrap(row.getByteArray("prepared_id")), row.getString("query_string"), row.has("logged_keyspace") ? row.getString("logged_keyspace") : null))
            counter++;
    }
    return counter;
}

Example 84 with UntypedResultSet

use of org.apache.cassandra.cql3.UntypedResultSet in project cassandra by apache.

the class SystemKeyspace method getReleaseVersion.

/**
 * Get release version for given endpoint.
 * If release version is unknown, then this returns null.
 *
 * @param ep endpoint address to check
 * @return Release version or null if version is unknown.
 */
public static CassandraVersion getReleaseVersion(InetAddressAndPort ep) {
    try {
        if (FBUtilities.getBroadcastAddressAndPort().equals(ep)) {
            return CURRENT_VERSION;
        }
        String req = "SELECT release_version FROM system.%s WHERE peer=? AND peer_port=?";
        UntypedResultSet result = executeInternal(String.format(req, PEERS_V2), ep.getAddress(), ep.getPort());
        if (result != null && result.one().has("release_version")) {
            return new CassandraVersion(result.one().getString("release_version"));
        }
        // version is unknown
        return null;
    } catch (IllegalArgumentException e) {
        // version string cannot be parsed
        return null;
    }
}

Example 85 with UntypedResultSet

use of org.apache.cassandra.cql3.UntypedResultSet in project cassandra by apache.

the class SystemKeyspace method loadPaxosState.

public static PaxosState loadPaxosState(DecoratedKey key, TableMetadata metadata, int nowInSec) {
    String req = "SELECT * FROM system.%s WHERE row_key = ? AND cf_id = ?";
    UntypedResultSet results = QueryProcessor.executeInternalWithNow(nowInSec, nanoTime(), format(req, PAXOS), key.getKey(), metadata.id.asUUID());
    if (results.isEmpty())
        return new PaxosState(key, metadata);
    UntypedResultSet.Row row = results.one();
    Commit promised = row.has("in_progress_ballot") ? new Commit(row.getUUID("in_progress_ballot"), new PartitionUpdate.Builder(metadata, key, metadata.regularAndStaticColumns(), 1).build()) : Commit.emptyCommit(key, metadata);
    // either we have both a recently accepted ballot and update or we have neither
    Commit accepted = row.has("proposal_version") && row.has("proposal") ? new Commit(row.getUUID("proposal_ballot"), PartitionUpdate.fromBytes(row.getBytes("proposal"), row.getInt("proposal_version"))) : Commit.emptyCommit(key, metadata);
    // either most_recent_commit and most_recent_commit_at will both be set, or neither
    Commit mostRecent = row.has("most_recent_commit_version") && row.has("most_recent_commit") ? new Commit(row.getUUID("most_recent_commit_at"), PartitionUpdate.fromBytes(row.getBytes("most_recent_commit"), row.getInt("most_recent_commit_version"))) : Commit.emptyCommit(key, metadata);
    return new PaxosState(promised, accepted, mostRecent);
}