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cqlsh.py
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cqlsh.py
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#!/bin/sh
# -*- mode: Python -*-
# Licensed to the Apache Software Foundation (ASF) under one
# or more contributor license agreements. See the NOTICE file
# distributed with this work for additional information
# regarding copyright ownership. The ASF licenses this file
# to you under the Apache License, Version 2.0 (the
# "License"); you may not use this file except in compliance
# with the License. You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
""":"
# bash code here; finds a suitable python interpreter and execs this file.
# prefer unqualified "python" if suitable:
python -c 'import sys; sys.exit(not (0x020500b0 < sys.hexversion < 0x03000000))' 2>/dev/null \
&& exec python "$0" "$@"
for pyver in 2.6 2.7 2.5; do
which python$pyver > /dev/null 2>&1 && exec python$pyver "$0" "$@"
done
echo "No appropriate python interpreter found." >&2
exit 1
":"""
from __future__ import with_statement
from uuid import UUID
description = "CQL Shell for Apache Cassandra"
version = "5.0.1"
from StringIO import StringIO
from contextlib import contextmanager
from glob import glob
import cmd
import sys
import os
import time
import optparse
import ConfigParser
import codecs
import locale
import platform
import warnings
import csv
import getpass
from functools import partial
import traceback
readline = None
try:
# check if tty first, cause readline doesn't check, and only cares
# about $TERM. we don't want the funky escape code stuff to be
# output if not a tty.
if sys.stdin.isatty():
import readline
except ImportError:
pass
CQL_LIB_PREFIX = 'cassandra-driver-internal-only-'
CASSANDRA_PATH = os.path.join(os.path.dirname(os.path.realpath(__file__)), '..')
# use bundled libs for python-cql and thrift, if available. if there
# is a ../lib dir, use bundled libs there preferentially.
ZIPLIB_DIRS = [os.path.join(CASSANDRA_PATH, 'lib')]
myplatform = platform.system()
if myplatform == 'Linux':
ZIPLIB_DIRS.append('/usr/share/cassandra/lib')
if os.environ.get('CQLSH_NO_BUNDLED', ''):
ZIPLIB_DIRS = ()
def find_zip(libprefix):
for ziplibdir in ZIPLIB_DIRS:
zips = glob(os.path.join(ziplibdir, libprefix + '*.zip'))
if zips:
return max(zips) # probably the highest version, if multiple
cql_zip = find_zip(CQL_LIB_PREFIX)
if cql_zip:
ver = os.path.splitext(os.path.basename(cql_zip))[0][len(CQL_LIB_PREFIX):]
sys.path.insert(0, os.path.join(cql_zip, 'cassandra-driver-' + ver))
third_parties = ('futures-', 'six-')
for lib in third_parties:
lib_zip = find_zip(lib)
if lib_zip:
sys.path.insert(0, lib_zip)
warnings.filterwarnings("ignore", r".*blist.*")
try:
import cassandra
except ImportError, e:
sys.exit("\nPython Cassandra driver not installed, or not on PYTHONPATH.\n"
'You might try "pip install cassandra-driver".\n\n'
'Python: %s\n'
'Module load path: %r\n\n'
'Error: %s\n' % (sys.executable, sys.path, e))
from cassandra.cluster import Cluster, PagedResult
from cassandra.query import SimpleStatement, ordered_dict_factory
from cassandra.policies import WhiteListRoundRobinPolicy
from cassandra.protocol import QueryMessage, ResultMessage
from cassandra.metadata import protect_name, protect_names, protect_value, KeyspaceMetadata, TableMetadata, ColumnMetadata
from cassandra.auth import PlainTextAuthProvider
# cqlsh should run correctly when run out of a Cassandra source tree,
# out of an unpacked Cassandra tarball, and after a proper package install.
cqlshlibdir = os.path.join(CASSANDRA_PATH, 'pylib')
if os.path.isdir(cqlshlibdir):
sys.path.insert(0, cqlshlibdir)
from cqlshlib import cqlhandling, cql3handling, pylexotron, sslhandling
from cqlshlib.displaying import (RED, BLUE, CYAN, ANSI_RESET, COLUMN_NAME_COLORS,
FormattedValue, colorme)
from cqlshlib.formatting import format_by_type, formatter_for, format_value_utype
from cqlshlib.util import trim_if_present, get_file_encoding_bomsize
from cqlshlib.formatting import DateTimeFormat
from cqlshlib.formatting import DEFAULT_TIMESTAMP_FORMAT
from cqlshlib.formatting import DEFAULT_DATE_FORMAT
from cqlshlib.formatting import DEFAULT_NANOTIME_FORMAT
from cqlshlib.tracing import print_trace_session, print_trace
DEFAULT_HOST = '127.0.0.1'
DEFAULT_PORT = 9042
DEFAULT_CQLVER = '3.3.0'
DEFAULT_PROTOCOL_VERSION = 4
DEFAULT_CONNECT_TIMEOUT_SECONDS = 5
DEFAULT_FLOAT_PRECISION = 5
DEFAULT_MAX_TRACE_WAIT = 10
if readline is not None and readline.__doc__ is not None and 'libedit' in readline.__doc__:
DEFAULT_COMPLETEKEY = '\t'
else:
DEFAULT_COMPLETEKEY = 'tab'
cqldocs = None
cqlruleset = None
epilog = """Connects to %(DEFAULT_HOST)s:%(DEFAULT_PORT)d by default. These
defaults can be changed by setting $CQLSH_HOST and/or $CQLSH_PORT. When a
host (and optional port number) are given on the command line, they take
precedence over any defaults.""" % globals()
parser = optparse.OptionParser(description=description, epilog=epilog,
usage="Usage: %prog [options] [host [port]]",
version='cqlsh ' + version)
parser.add_option("-C", "--color", action='store_true', dest='color',
help='Always use color output')
parser.add_option("--no-color", action='store_false', dest='color',
help='Never use color output')
parser.add_option('--ssl', action='store_true', help='Use SSL', default=False)
parser.add_option("-u", "--username", help="Authenticate as user.")
parser.add_option("-p", "--password", help="Authenticate using password.")
parser.add_option('-k', '--keyspace', help='Authenticate to the given keyspace.')
parser.add_option("-f", "--file", help="Execute commands from FILE, then exit")
parser.add_option('--debug', action='store_true',
help='Show additional debugging information')
parser.add_option("--encoding", help="Specify a non-default encoding for output. If you are " +
"experiencing problems with unicode characters, using utf8 may fix the problem." +
" (Default from system preferences: %s)" % (locale.getpreferredencoding(),))
parser.add_option("--cqlshrc", help="Specify an alternative cqlshrc file location.")
parser.add_option('--cqlversion', default=DEFAULT_CQLVER,
help='Specify a particular CQL version (default: %default).'
' Examples: "3.0.3", "3.1.0"')
parser.add_option("-e", "--execute", help='Execute the statement and quit.')
parser.add_option("--connect-timeout", default=DEFAULT_CONNECT_TIMEOUT_SECONDS, dest='connect_timeout',
help='Specify the connection timeout in seconds (default: %default seconds).')
optvalues = optparse.Values()
(options, arguments) = parser.parse_args(sys.argv[1:], values=optvalues)
#BEGIN history/config definition
HISTORY_DIR = os.path.expanduser(os.path.join('~', '.cassandra'))
if hasattr(options, 'cqlshrc'):
CONFIG_FILE = options.cqlshrc
if not os.path.exists(CONFIG_FILE):
print '\nWarning: Specified cqlshrc location `%s` does not exist. Using `%s` instead.\n' % (CONFIG_FILE, HISTORY_DIR)
CONFIG_FILE = os.path.join(HISTORY_DIR, 'cqlshrc')
else:
CONFIG_FILE = os.path.join(HISTORY_DIR, 'cqlshrc')
HISTORY = os.path.join(HISTORY_DIR, 'cqlsh_history')
if not os.path.exists(HISTORY_DIR):
try:
os.mkdir(HISTORY_DIR)
except OSError:
print '\nWarning: Cannot create directory at `%s`. Command history will not be saved.\n' % HISTORY_DIR
OLD_CONFIG_FILE = os.path.expanduser(os.path.join('~', '.cqlshrc'))
if os.path.exists(OLD_CONFIG_FILE):
if os.path.exists(CONFIG_FILE):
print '\nWarning: cqlshrc config files were found at both the old location (%s) and \
the new location (%s), the old config file will not be migrated to the new \
location, and the new location will be used for now. You should manually \
consolidate the config files at the new location and remove the old file.' \
% (OLD_CONFIG_FILE, CONFIG_FILE)
else:
os.rename(OLD_CONFIG_FILE, CONFIG_FILE)
OLD_HISTORY = os.path.expanduser(os.path.join('~', '.cqlsh_history'))
if os.path.exists(OLD_HISTORY):
os.rename(OLD_HISTORY, HISTORY)
#END history/config definition
CQL_ERRORS = (
cassandra.AlreadyExists, cassandra.AuthenticationFailed, cassandra.InvalidRequest,
cassandra.Timeout, cassandra.Unauthorized, cassandra.OperationTimedOut,
cassandra.cluster.NoHostAvailable,
cassandra.connection.ConnectionBusy, cassandra.connection.ProtocolError, cassandra.connection.ConnectionException,
cassandra.protocol.ErrorMessage, cassandra.protocol.InternalError, cassandra.query.TraceUnavailable
)
debug_completion = bool(os.environ.get('CQLSH_DEBUG_COMPLETION', '') == 'YES')
# we want the cql parser to understand our cqlsh-specific commands too
my_commands_ending_with_newline = (
'help',
'?',
'consistency',
'serial',
'describe',
'desc',
'show',
'source',
'capture',
'login',
'debug',
'tracing',
'expand',
'paging',
'exit',
'quit',
'clear',
'cls'
)
cqlsh_syntax_completers = []
def cqlsh_syntax_completer(rulename, termname):
def registrator(f):
cqlsh_syntax_completers.append((rulename, termname, f))
return f
return registrator
cqlsh_extra_syntax_rules = r'''
<cqlshCommand> ::= <CQL_Statement>
| <specialCommand> ( ";" | "\n" )
;
<specialCommand> ::= <describeCommand>
| <consistencyCommand>
| <serialConsistencyCommand>
| <showCommand>
| <sourceCommand>
| <captureCommand>
| <copyCommand>
| <loginCommand>
| <debugCommand>
| <helpCommand>
| <tracingCommand>
| <expandCommand>
| <exitCommand>
| <pagingCommand>
| <clearCommand>
;
<describeCommand> ::= ( "DESCRIBE" | "DESC" )
( "FUNCTIONS" ksname=<keyspaceName>?
| "FUNCTION" udf=<anyFunctionName>
| "AGGREGATES" ksname=<keyspaceName>?
| "AGGREGATE" uda=<userAggregateName>
| "KEYSPACES"
| "KEYSPACE" ksname=<keyspaceName>?
| ( "COLUMNFAMILY" | "TABLE" ) cf=<columnFamilyName>
| "INDEX" idx=<indexName>
| ( "COLUMNFAMILIES" | "TABLES" )
| "FULL"? "SCHEMA"
| "CLUSTER"
| "TYPES"
| "TYPE" ut=<userTypeName>
| (ksname=<keyspaceName> | cf=<columnFamilyName> | idx=<indexName>))
;
<consistencyCommand> ::= "CONSISTENCY" ( level=<consistencyLevel> )?
;
<consistencyLevel> ::= "ANY"
| "ONE"
| "TWO"
| "THREE"
| "QUORUM"
| "ALL"
| "LOCAL_QUORUM"
| "EACH_QUORUM"
| "SERIAL"
| "LOCAL_SERIAL"
| "LOCAL_ONE"
;
<serialConsistencyCommand> ::= "SERIAL" "CONSISTENCY" ( level=<serialConsistencyLevel> )?
;
<serialConsistencyLevel> ::= "SERIAL"
| "LOCAL_SERIAL"
;
<showCommand> ::= "SHOW" what=( "VERSION" | "HOST" | "SESSION" sessionid=<uuid> )
;
<sourceCommand> ::= "SOURCE" fname=<stringLiteral>
;
<captureCommand> ::= "CAPTURE" ( fname=( <stringLiteral> | "OFF" ) )?
;
<copyCommand> ::= "COPY" cf=<columnFamilyName>
( "(" [colnames]=<colname> ( "," [colnames]=<colname> )* ")" )?
( dir="FROM" ( fname=<stringLiteral> | "STDIN" )
| dir="TO" ( fname=<stringLiteral> | "STDOUT" ) )
( "WITH" <copyOption> ( "AND" <copyOption> )* )?
;
<copyOption> ::= [optnames]=<identifier> "=" [optvals]=<copyOptionVal>
;
<copyOptionVal> ::= <identifier>
| <stringLiteral>
;
# avoiding just "DEBUG" so that this rule doesn't get treated as a terminal
<debugCommand> ::= "DEBUG" "THINGS"?
;
<helpCommand> ::= ( "HELP" | "?" ) [topic]=( /[a-z_]*/ )*
;
<tracingCommand> ::= "TRACING" ( switch=( "ON" | "OFF" ) )?
;
<expandCommand> ::= "EXPAND" ( switch=( "ON" | "OFF" ) )?
;
<pagingCommand> ::= "PAGING" ( switch=( "ON" | "OFF" ) )?
;
<loginCommand> ::= "LOGIN" username=<username> (password=<stringLiteral>)?
;
<exitCommand> ::= "exit" | "quit"
;
<clearCommand> ::= "CLEAR" | "CLS"
;
<qmark> ::= "?" ;
'''
@cqlsh_syntax_completer('helpCommand', 'topic')
def complete_help(ctxt, cqlsh):
return sorted([t.upper() for t in cqldocs.get_help_topics() + cqlsh.get_help_topics()])
def complete_source_quoted_filename(ctxt, cqlsh):
partial_path = ctxt.get_binding('partial', '')
head, tail = os.path.split(partial_path)
exhead = os.path.expanduser(head)
try:
contents = os.listdir(exhead or '.')
except OSError:
return ()
matches = filter(lambda f: f.startswith(tail), contents)
annotated = []
for f in matches:
match = os.path.join(head, f)
if os.path.isdir(os.path.join(exhead, f)):
match += '/'
annotated.append(match)
return annotated
cqlsh_syntax_completer('sourceCommand', 'fname')(complete_source_quoted_filename)
cqlsh_syntax_completer('captureCommand', 'fname')(complete_source_quoted_filename)
@cqlsh_syntax_completer('copyCommand', 'fname')
def copy_fname_completer(ctxt, cqlsh):
lasttype = ctxt.get_binding('*LASTTYPE*')
if lasttype == 'unclosedString':
return complete_source_quoted_filename(ctxt, cqlsh)
partial_path = ctxt.get_binding('partial')
if partial_path == '':
return ["'"]
return ()
@cqlsh_syntax_completer('copyCommand', 'colnames')
def complete_copy_column_names(ctxt, cqlsh):
existcols = map(cqlsh.cql_unprotect_name, ctxt.get_binding('colnames', ()))
ks = cqlsh.cql_unprotect_name(ctxt.get_binding('ksname', None))
cf = cqlsh.cql_unprotect_name(ctxt.get_binding('cfname'))
colnames = cqlsh.get_column_names(ks, cf)
if len(existcols) == 0:
return [colnames[0]]
return set(colnames[1:]) - set(existcols)
COPY_OPTIONS = ('DELIMITER', 'QUOTE', 'ESCAPE', 'HEADER', 'ENCODING', 'NULL')
@cqlsh_syntax_completer('copyOption', 'optnames')
def complete_copy_options(ctxt, cqlsh):
optnames = map(str.upper, ctxt.get_binding('optnames', ()))
direction = ctxt.get_binding('dir').upper()
opts = set(COPY_OPTIONS) - set(optnames)
if direction == 'FROM':
opts -= ('ENCODING',)
return opts
@cqlsh_syntax_completer('copyOption', 'optvals')
def complete_copy_opt_values(ctxt, cqlsh):
optnames = ctxt.get_binding('optnames', ())
lastopt = optnames[-1].lower()
if lastopt == 'header':
return ['true', 'false']
return [cqlhandling.Hint('<single_character_string>')]
class NoKeyspaceError(Exception):
pass
class KeyspaceNotFound(Exception):
pass
class ColumnFamilyNotFound(Exception):
pass
class IndexNotFound(Exception):
pass
class ObjectNotFound(Exception):
pass
class VersionNotSupported(Exception):
pass
class UserTypeNotFound(Exception):
pass
class FunctionNotFound(Exception):
pass
class AggregateNotFound(Exception):
pass
class DecodeError(Exception):
verb = 'decode'
def __init__(self, thebytes, err, colname=None):
self.thebytes = thebytes
self.err = err
self.colname = colname
def __str__(self):
return str(self.thebytes)
def message(self):
what = 'value %r' % (self.thebytes,)
if self.colname is not None:
what = 'value %r (for column %r)' % (self.thebytes, self.colname)
return 'Failed to %s %s : %s' \
% (self.verb, what, self.err)
def __repr__(self):
return '<%s %s>' % (self.__class__.__name__, self.message())
class FormatError(DecodeError):
verb = 'format'
def full_cql_version(ver):
while ver.count('.') < 2:
ver += '.0'
ver_parts = ver.split('-', 1) + ['']
vertuple = tuple(map(int, ver_parts[0].split('.')) + [ver_parts[1]])
return ver, vertuple
def format_value(val, output_encoding, addcolor=False, date_time_format=None,
float_precision=None, colormap=None, nullval=None):
if isinstance(val, DecodeError):
if addcolor:
return colorme(repr(val.thebytes), colormap, 'error')
else:
return FormattedValue(repr(val.thebytes))
return format_by_type(type(val), val, output_encoding, colormap=colormap,
addcolor=addcolor, nullval=nullval, date_time_format=date_time_format,
float_precision=float_precision)
def show_warning_without_quoting_line(message, category, filename, lineno, file=None, line=None):
if file is None:
file = sys.stderr
try:
file.write(warnings.formatwarning(message, category, filename, lineno, line=''))
except IOError:
pass
warnings.showwarning = show_warning_without_quoting_line
warnings.filterwarnings('always', category=cql3handling.UnexpectedTableStructure)
def describe_interval(seconds):
desc = []
for length, unit in ((86400, 'day'), (3600, 'hour'), (60, 'minute')):
num = int(seconds) / length
if num > 0:
desc.append('%d %s' % (num, unit))
if num > 1:
desc[-1] += 's'
seconds %= length
words = '%.03f seconds' % seconds
if len(desc) > 1:
words = ', '.join(desc) + ', and ' + words
elif len(desc) == 1:
words = desc[0] + ' and ' + words
return words
def auto_format_udts():
# when we see a new user defined type, set up the shell formatting for it
udt_apply_params = cassandra.cqltypes.UserType.apply_parameters
def new_apply_params(cls, *args, **kwargs):
udt_class = udt_apply_params(*args, **kwargs)
formatter_for(udt_class.typename)(format_value_utype)
return udt_class
cassandra.cqltypes.UserType.udt_apply_parameters = classmethod(new_apply_params)
make_udt_class = cassandra.cqltypes.UserType.make_udt_class
def new_make_udt_class(cls, *args, **kwargs):
udt_class = make_udt_class(*args, **kwargs)
formatter_for(udt_class.tuple_type.__name__)(format_value_utype)
return udt_class
cassandra.cqltypes.UserType.make_udt_class = classmethod(new_make_udt_class)
class FrozenType(cassandra.cqltypes._ParameterizedType):
"""
Needed until the bundled python driver adds FrozenType.
"""
typename = "frozen"
num_subtypes = 1
@classmethod
def deserialize_safe(cls, byts, protocol_version):
subtype, = cls.subtypes
return subtype.from_binary(byts)
@classmethod
def serialize_safe(cls, val, protocol_version):
subtype, = cls.subtypes
return subtype.to_binary(val, protocol_version)
class Shell(cmd.Cmd):
custom_prompt = os.getenv('CQLSH_PROMPT', '')
if custom_prompt is not '':
custom_prompt += "\n"
default_prompt = custom_prompt + "cqlsh> "
continue_prompt = " ... "
keyspace_prompt = custom_prompt + "cqlsh:%s> "
keyspace_continue_prompt = "%s ... "
show_line_nums = False
debug = False
stop = False
last_hist = None
shunted_query_out = None
use_paging = True
csv_dialect_defaults = dict(delimiter=',', doublequote=False,
escapechar='\\', quotechar='"')
default_page_size = 100
def __init__(self, hostname, port, color=False,
username=None, password=None, encoding=None, stdin=None, tty=True,
completekey=DEFAULT_COMPLETEKEY, use_conn=None,
cqlver=DEFAULT_CQLVER, keyspace=None,
tracing_enabled=False, expand_enabled=False,
display_nanotime_format=DEFAULT_NANOTIME_FORMAT,
display_timestamp_format=DEFAULT_TIMESTAMP_FORMAT,
display_date_format=DEFAULT_DATE_FORMAT,
display_float_precision=DEFAULT_FLOAT_PRECISION,
max_trace_wait=DEFAULT_MAX_TRACE_WAIT,
ssl=False,
single_statement=None,
client_timeout=10,
protocol_version=DEFAULT_PROTOCOL_VERSION,
connect_timeout=DEFAULT_CONNECT_TIMEOUT_SECONDS):
cmd.Cmd.__init__(self, completekey=completekey)
self.hostname = hostname
self.port = port
self.auth_provider = None
if username:
if not password:
password = getpass.getpass()
self.auth_provider = PlainTextAuthProvider(username=username, password=password)
self.username = username
self.keyspace = keyspace
self.ssl = ssl
self.tracing_enabled = tracing_enabled
self.expand_enabled = expand_enabled
if use_conn:
self.conn = use_conn
else:
self.conn = Cluster(contact_points=(self.hostname,), port=self.port, cql_version=cqlver,
protocol_version=protocol_version,
auth_provider=self.auth_provider,
ssl_options=sslhandling.ssl_settings(hostname, CONFIG_FILE) if ssl else None,
load_balancing_policy=WhiteListRoundRobinPolicy([self.hostname]),
connect_timeout=connect_timeout)
self.owns_connection = not use_conn
self.set_expanded_cql_version(cqlver)
if keyspace:
self.session = self.conn.connect(keyspace)
else:
self.session = self.conn.connect()
self.color = color
self.display_nanotime_format = display_nanotime_format
self.display_timestamp_format = display_timestamp_format
self.display_date_format = display_date_format
self.display_float_precision = display_float_precision
# Workaround for CASSANDRA-8521 until PYTHON-205 is resolved.
# If there is no schema metadata present (due to a schema mismatch),
# get rid of the code that checks for a schema mismatch and force
# the schema metadata to be built.
if not self.conn.metadata.keyspaces:
self.printerr("Warning: schema version mismatch detected; check the schema versions of your "
"nodes in system.local and system.peers.")
original_method = self.conn.control_connection._get_schema_mismatches
try:
self.conn.control_connection._get_schema_mismatches = lambda *args, **kwargs: None
future = self.conn.submit_schema_refresh()
future.result(timeout=10)
finally:
self.conn.control_connection._get_schema_mismatches = original_method
self.session.default_timeout = client_timeout
self.session.row_factory = ordered_dict_factory
self.get_connection_versions()
self.current_keyspace = keyspace
self.display_timestamp_format = display_timestamp_format
self.display_nanotime_format = display_nanotime_format
self.display_date_format = display_date_format
self.max_trace_wait = max_trace_wait
self.session.max_trace_wait = max_trace_wait
if encoding is None:
encoding = locale.getpreferredencoding()
self.encoding = encoding
self.output_codec = codecs.lookup(encoding)
self.statement = StringIO()
self.lineno = 1
self.in_comment = False
self.prompt = ''
if stdin is None:
stdin = sys.stdin
self.tty = tty
if tty:
self.reset_prompt()
self.report_connection()
print 'Use HELP for help.'
else:
self.show_line_nums = True
self.stdin = stdin
self.query_out = sys.stdout
self.consistency_level = cassandra.ConsistencyLevel.ONE
self.serial_consistency_level = cassandra.ConsistencyLevel.SERIAL;
# the python driver returns BLOBs as string, but we expect them as bytearrays
cassandra.cqltypes.BytesType.deserialize = staticmethod(lambda byts, protocol_version: bytearray(byts))
cassandra.cqltypes.CassandraType.support_empty_values = True
auto_format_udts()
self.empty_lines = 0
self.statement_error = False
self.single_statement = single_statement
def set_expanded_cql_version(self, ver):
ver, vertuple = full_cql_version(ver)
self.cql_version = ver
self.cql_ver_tuple = vertuple
def cqlver_atleast(self, major, minor=0, patch=0):
return self.cql_ver_tuple[:3] >= (major, minor, patch)
def myformat_value(self, val, **kwargs):
if isinstance(val, DecodeError):
self.decoding_errors.append(val)
try:
dtformats = DateTimeFormat(timestamp_format=self.display_timestamp_format,
date_format=self.display_date_format, nanotime_format=self.display_nanotime_format)
return format_value(val, self.output_codec.name,
addcolor=self.color, date_time_format=dtformats,
float_precision=self.display_float_precision, **kwargs)
except Exception, e:
err = FormatError(val, e)
self.decoding_errors.append(err)
return format_value(err, self.output_codec.name, addcolor=self.color)
def myformat_colname(self, name, table_meta=None):
column_colors = COLUMN_NAME_COLORS.copy()
# check column role and color appropriately
if table_meta:
if name in [col.name for col in table_meta.partition_key]:
column_colors.default_factory = lambda: RED
elif name in [col.name for col in table_meta.clustering_key]:
column_colors.default_factory = lambda: CYAN
return self.myformat_value(name, colormap=column_colors)
def report_connection(self):
self.show_host()
self.show_version()
def show_host(self):
print "Connected to %s at %s:%d." % \
(self.applycolor(self.get_cluster_name(), BLUE),
self.hostname,
self.port)
def show_version(self):
vers = self.connection_versions.copy()
vers['shver'] = version
# system.Versions['cql'] apparently does not reflect changes with
# set_cql_version.
vers['cql'] = self.cql_version
print "[cqlsh %(shver)s | Cassandra %(build)s | CQL spec %(cql)s | Native protocol v%(protocol)s]" % vers
def show_session(self, sessionid):
print_trace_session(self, self.session, sessionid)
def get_connection_versions(self):
result, = self.session.execute("select * from system.local where key = 'local'")
vers = {
'build': result['release_version'],
'protocol': result['native_protocol_version'],
'cql': result['cql_version'],
}
self.connection_versions = vers
def get_keyspace_names(self):
return map(str, self.conn.metadata.keyspaces.keys())
def get_columnfamily_names(self, ksname=None):
if ksname is None:
ksname = self.current_keyspace
return map(str, self.get_keyspace_meta(ksname).tables.keys())
def get_index_names(self, ksname=None):
if ksname is None:
ksname = self.current_keyspace
return map(str, self.get_keyspace_meta(ksname).indexes.keys())
def get_column_names(self, ksname, cfname):
if ksname is None:
ksname = self.current_keyspace
layout = self.get_table_meta(ksname, cfname)
return [str(col) for col in layout.columns]
def get_usertype_names(self, ksname=None):
if ksname is None:
ksname = self.current_keyspace
return self.get_keyspace_meta(ksname).user_types.keys()
def get_usertype_layout(self, ksname, typename):
if ksname is None:
ksname = self.current_keyspace
ks_meta = self.get_keyspace_meta(ksname)
try:
user_type = ks_meta.user_types[typename]
except KeyError:
raise UserTypeNotFound("User type %r not found" % typename)
return [(field_name, field_type.cql_parameterized_type())
for field_name, field_type in zip(user_type.field_names, user_type.field_types)]
def get_userfunction_names(self, ksname=None):
if ksname is None:
ksname = self.current_keyspace
return map(lambda f: f.name, self.get_keyspace_meta(ksname).functions.values())
def get_useraggregate_names(self, ksname=None):
if ksname is None:
ksname = self.current_keyspace
return map(lambda f: f.name, self.get_keyspace_meta(ksname).aggregates.values())
def get_cluster_name(self):
return self.conn.metadata.cluster_name
def get_partitioner(self):
return self.conn.metadata.partitioner
def get_keyspace_meta(self, ksname):
if not ksname in self.conn.metadata.keyspaces:
raise KeyspaceNotFound('Keyspace %r not found.' % ksname)
return self.conn.metadata.keyspaces[ksname]
def get_keyspaces(self):
return self.conn.metadata.keyspaces.values()
def get_ring(self):
if self.current_keyspace is None or self.current_keyspace == 'system':
raise NoKeyspaceError("Ring view requires a current non-system keyspace")
self.conn.metadata.token_map.rebuild_keyspace(self.current_keyspace, build_if_absent=True)
return self.conn.metadata.token_map.tokens_to_hosts_by_ks[self.current_keyspace]
def get_table_meta(self, ksname, tablename):
if ksname is None:
ksname = self.current_keyspace
ksmeta = self.get_keyspace_meta(ksname)
if tablename not in ksmeta.tables:
if ksname == 'system_auth' and tablename in ['roles', 'role_permissions']:
self.get_fake_auth_table_meta(ksname, tablename)
else:
raise ColumnFamilyNotFound("Column family %r not found" % tablename)
else:
return ksmeta.tables[tablename]
def get_fake_auth_table_meta(self, ksname, tablename):
# may be using external auth implementation so internal tables
# aren't actually defined in schema. In this case, we'll fake
# them up
if tablename == 'roles':
ks_meta = KeyspaceMetadata(ksname, True, None, None)
table_meta = TableMetadata(ks_meta, 'roles')
table_meta.columns['role'] = ColumnMetadata(table_meta, 'role', cassandra.cqltypes.UTF8Type)
table_meta.columns['is_superuser'] = ColumnMetadata(table_meta, 'is_superuser', cassandra.cqltypes.BooleanType)
table_meta.columns['can_login'] = ColumnMetadata(table_meta, 'can_login', cassandra.cqltypes.BooleanType)
elif tablename == 'role_permissions':
ks_meta = KeyspaceMetadata(ksname, True, None, None)
table_meta = TableMetadata(ks_meta, 'role_permissions')
table_meta.columns['role'] = ColumnMetadata(table_meta, 'role', cassandra.cqltypes.UTF8Type)
table_meta.columns['resource'] = ColumnMetadata(table_meta, 'resource', cassandra.cqltypes.UTF8Type)
table_meta.columns['permission'] = ColumnMetadata(table_meta, 'permission', cassandra.cqltypes.UTF8Type)
else:
raise ColumnFamilyNotFound("Column family %r not found" % tablename)
def get_index_meta(self, ksname, idxname):
if ksname is None:
ksname = self.current_keyspace
ksmeta = self.get_keyspace_meta(ksname)
if idxname not in ksmeta.indexes:
raise IndexNotFound("Index %r not found" % idxname)
return ksmeta.indexes[idxname]
def get_object_meta(self, ks, name):
if name is None:
if ks and ks in self.conn.metadata.keyspaces:
return self.conn.metadata.keyspaces[ks]
elif self.current_keyspace is None:
raise ObjectNotFound("%r not found in keyspaces" % (ks))
else:
name = ks
ks = self.current_keyspace
if ks is None:
ks = self.current_keyspace
ksmeta = self.get_keyspace_meta(ks)
if name in ksmeta.tables:
return ksmeta.tables[name]
elif name in ksmeta.indexes:
return ksmeta.indexes[name]
raise ObjectNotFound("%r not found in keyspace %r" % (name, ks))
def get_usertypes_meta(self):
data = self.session.execute("select * from system.schema_usertypes")
if not data:
return cql3handling.UserTypesMeta({})
return cql3handling.UserTypesMeta.from_layout(data)
def get_trigger_names(self, ksname=None):
if ksname is None:
ksname = self.current_keyspace
return [trigger.name
for table in self.get_keyspace_meta(ksname).tables.values()
for trigger in table.triggers.values()]
def reset_statement(self):
self.reset_prompt()
self.statement.truncate(0)
self.empty_lines = 0
def reset_prompt(self):
if self.current_keyspace is None:
self.set_prompt(self.default_prompt, True)
else:
self.set_prompt(self.keyspace_prompt % self.current_keyspace, True)
def set_continue_prompt(self):
if self.empty_lines >= 3:
self.set_prompt("Statements are terminated with a ';'. You can press CTRL-C to cancel an incomplete statement.")
self.empty_lines = 0
return
if self.current_keyspace is None:
self.set_prompt(self.continue_prompt)
else:
spaces = ' ' * len(str(self.current_keyspace))
self.set_prompt(self.keyspace_continue_prompt % spaces)
self.empty_lines = self.empty_lines + 1 if not self.lastcmd else 0
@contextmanager
def prepare_loop(self):
readline = None
if self.tty and self.completekey:
try:
import readline
except ImportError:
if myplatform == 'Windows':
print "WARNING: pyreadline dependency missing. Install to enable tab completion."
pass
else:
old_completer = readline.get_completer()
readline.set_completer(self.complete)
if readline.__doc__ is not None and 'libedit' in readline.__doc__:
readline.parse_and_bind("bind -e")
readline.parse_and_bind("bind '" + self.completekey + "' rl_complete")
readline.parse_and_bind("bind ^R em-inc-search-prev")
else:
readline.parse_and_bind(self.completekey + ": complete")
try:
yield
finally:
if readline is not None:
readline.set_completer(old_completer)
def get_input_line(self, prompt=''):
if self.tty:
self.lastcmd = raw_input(prompt)
line = self.lastcmd + '\n'
else:
self.lastcmd = self.stdin.readline()
line = self.lastcmd
if not len(line):
raise EOFError
self.lineno += 1
return line
def use_stdin_reader(self, until='', prompt=''):
until += '\n'
while True:
try:
newline = self.get_input_line(prompt=prompt)
except EOFError:
return