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/usr/bin/pycassaShell is in python-pycassa 1.11.1-2.

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#!/usr/bin/python

"""
interactive Cassandra Python shell

"""

#try:
#    from IPython.Shell import IPShellEmbed
#except ImportError:
#    print "[I]: IPython not found, falling back to default interpreter."
try:
    import IPython

    if hasattr(IPython, "embed"):
        def runshell():
            IPython.embed(banner1="")
    else:
        import IPython.Shell
        def runshell():
            IPython.Shell.IPShellEmbed([])()

except ImportError:
    print "[I]: IPython not found, falling back to default interpreter."

    def runshell():
        import os
        os.environ['PYTHONINSPECT'] = '1'

import pycassa, optparse
from pycassa.system_manager import *
from sys import stdout, stderr, exit

def _print_line(label, value):
    spaces = " " * (35 - len(label + ':'))
    print "%s:%s%s" % (label, spaces, str(value))

def _make_line(label, value):
    spaces = " " * (35 - len(label + ':'))
    return "%s:%s%s\n" % (label, spaces, str(value))

def describe_keyspace(keyspace):
    try:
        ks = SYSTEM_MANAGER.get_keyspace_properties(keyspace)
    except pycassa.NotFoundException:
        print "\nKeyspace %s does not exist." % keyspace

    print
    _print_line("Name", keyspace)
    print

    s = ks['replication_strategy']
    _print_line('Replication Strategy', s[s.rfind('.') + 1: ])
    print

    if ks['strategy_options']:
        _print_line("Strategy Options", ks['strategy_options'])

    cfs = SYSTEM_MANAGER.get_keyspace_column_families(keyspace).keys()
    cfs.sort()
    print "Column Families:"
    for cf in cfs:
        print "  " + cf

def describe_column_family(arg1, arg2=None):
    """
    Prints a description of a column family.

    A keyspace and column family name may be passed in, or a
    :class:`~pycassa.columnfamil.ColumnFamily` object may be passed in.
    """
    if arg2 is None:
        # This is a ColumnFamily object
        column_family = arg1.column_family
        keyspace = arg1.pool.keyspace
    else:
        keyspace, column_family = (arg1, arg2)

    try:
        cfdef = SYSTEM_MANAGER.get_keyspace_column_families(keyspace)[column_family]
    except KeyError:
        print "Column family %s does not exist in keyspace %s" % (column_family, keyspace)

    print
    _print_line('Name', cfdef.name)
    _print_line('Description', cfdef.comment)
    _print_line('Column Type', cfdef.column_type)
    print

    s = cfdef.comparator_type
    _print_line('Comparator Type', s[s.rfind('.') + 1:])

    if cfdef.column_type == 'Super':
        s = cfdef.subcomparator_type
        _print_line('Subcomparator Type', s[s.rfind('.') + 1:])

    s = cfdef.default_validation_class
    _print_line('Default Validation Class', s[s.rfind('.') + 1:])
    print

    print "Cache Sizes"
    if cfdef.row_cache_size == 0:
        s = 'Disabled'
    elif cfdef.row_cache_size >= 1:
        s = str(int(cfdef.row_cache_size)) + " rows"
    else:
        s = str(cfdef.key_cache_size) + "%"
    _print_line("  Row Cache", s)

    if cfdef.key_cache_size == 0:
        s = 'Disabled'
    elif cfdef.key_cache_size >= 1:
        s = str(int(cfdef.key_cache_size)) + " keys"
    else:
        s = str(cfdef.key_cache_size) + "%"
    _print_line("  Key Cache", s)
    print

    if cfdef.read_repair_chance == 0:
        s = 'Disabled'
    else:
        s = str(cfdef.read_repair_chance * 100) + '%'
    _print_line("Read Repair Chance", s)
    print

    _print_line("GC Grace Seconds", cfdef.gc_grace_seconds)
    print

    compact_disabled = cfdef.min_compaction_threshold == 0 or cfdef.max_compaction_threshold == 0

    print "Compaction Thresholds"
    if compact_disabled:
        _print_line("  Min", "Minor Compactions Disabled")
    else:
        _print_line("  Min", cfdef.min_compaction_threshold)

    if compact_disabled:
        _print_line("  Max", "Minor Compactions Disabled")
    else:
        _print_line("  Max", cfdef.max_compaction_threshold)
    print

    if hasattr(cfdef, 'memtable_throughput_in_mb'):
        print 'Memtable Flush After Thresholds'
        _print_line("  Throughput", str(cfdef.memtable_throughput_in_mb) + " MiB")
        s = str(int(cfdef.memtable_operations_in_millions * 1000000))
        _print_line("  Operations", s + " operations")
        _print_line("  Time", str(cfdef.memtable_flush_after_mins) + " minutes")
        print

    if getattr(cfdef, 'row_cache_save_period_in_seconds', None) is not None:
        print "Cache Save Periods"
        if cfdef.row_cache_save_period_in_seconds == 0:
            s = 'Disabled'
        else:
            s = str(cfdef.row_cache_save_period_in_seconds) + ' seconds'
        _print_line("  Row Cache", s)

    if getattr(cfdef, 'key_cache_save_period_in_seconds', None) is not None:
        if cfdef.key_cache_save_period_in_seconds == 0:
            s = 'Disabled'
        else:
            s = str(cfdef.key_cache_save_period_in_seconds) + ' seconds'
        _print_line("  Key Cache", s)

    if cfdef.column_metadata:
        print "\nColumn Metadata"
        for coldef in cfdef.column_metadata:
            print
            _print_line("  - Name", coldef.name)

            s = coldef.validation_class
            _print_line("    Value Type", s[s.rfind('.') + 1: ])

            if coldef.index_type is not None:
                s = IndexType._VALUES_TO_NAMES[coldef.index_type]
                _print_line("    Index Type", s[s.rfind('.') + 1: ])
                _print_line("    Index Name", coldef.index_name)

_pool = None

def _update_cf(ks, cf, delete=False):
    if ks == options.keyspace and _pool is not None:
        if not delete:
            existed = cf.upper() in globals()
            globals()[cf.upper()] = pycassa.ColumnFamily(_pool, cf)
            if not existed:
                print "\nLoaded %s as %s" % (cf, cf.upper())
            else:
                print "\nReloaded %s" % cf.upper()
        else:
            globals().pop(cf.upper())
            print "\nDropped %s" % cf.upper()

class InteractiveSystemManager(pycassa.SystemManager):
    """
    Allows ColumnFamily instances to be passed directly to SystemManager
    methods instead of specifying a keyspace and column family as strings.
    """

    def create_column_family(self, keyspace, name, *args, **kwargs):
        super(InteractiveSystemManager, self).create_column_family(keyspace, name, *args, **kwargs)
        _update_cf(keyspace, name)

    def alter_column_family(self, arg1, arg2, *args, **kwargs):
        if isinstance(arg1, pycassa.ColumnFamily):
            keyspace = arg1.pool.keyspace
            column_family = arg1.column_family
            super(InteractiveSystemManager, self).alter_column_family(keyspace, column_family, arg2, *args, **kwargs)
            _update_cf(keyspace, name)
        else:
            super(InteractiveSystemManager, self).alter_column_family(arg1, arg2, *args, **kwargs)
            _update_cf(arg1, arg2)

    def drop_column_family(self, arg1, arg2=None):
        if isinstance(arg1, pycassa.ColumnFamily):
            keyspace = arg1.pool.keyspace
            column_family = arg1.column_family
        else:
            keyspace = arg1
            column_family = arg2
        super(InteractiveSystemManager, self).drop_column_family(keyspace, column_family)
        _update_cf(keyspace, column_family, delete=True)

    def alter_column(self, arg1, arg2, *args, **kwargs):
        if isinstance(arg1, pycassa.ColumnFamily):
            keyspace = arg1.pool.keyspace
            column_family = arg1.column_family
            super(InteractiveSystemManager, self).alter_column(keyspace, column_family, arg2, *args, **kwargs)
            _update_cf(keyspace, column_family)
        else:
            super(InteractiveSystemManager, self).alter_column(arg1, arg2, *args, **kwargs)
            _update_cf(arg1, arg2)

    def create_index(self, arg1, arg2, *args, **kwargs):
        if isinstance(arg1, pycassa.ColumnFamily):
            keyspace = arg1.pool.keyspace
            column_family = arg1.column_family
            super(InteractiveSystemManager, self).create_index(keyspace, column_family, arg2, *args, **kwargs)
            _update_cf(keyspace, column_family)
        else:
            super(InteractiveSystemManager, self).create_index(arg1, arg2, *args, **kwargs)
            _update_cf(arg1, arg2)

parser = optparse.OptionParser(usage='Usage: %prog [OPTIONS]')
parser.add_option('-k', '--keyspace', help='Cassandra keyspace name.')
parser.add_option('-H', '--host', help='Hostname.')
parser.add_option('-p', '--port', type="int", help='Thrift port number.')
parser.add_option('-u', '--user', help='Username (for simple auth).')
parser.add_option('-P', '--passwd', help='Password (for simple auth).')
parser.add_option('-S', '--streaming', help='Using streaming transport.',
                  action="store_false", dest='framed')
parser.add_option('-F', '--framed',
                  help='Use framed transport.  Default transport.',
                  action="store_true", dest='framed')
parser.add_option('-f', '--file', help='Run a script after startup')

(options, args) = parser.parse_args()


hostname = options.host and options.host or 'localhost'
port = options.port and options.port or 9160
framed = True if options.framed is None else options.framed
credentials = None

if options.user or options.passwd:
    if options.user and (not options.passwd):
        print >>stderr, "You must supply a password for username", options.user
        exit(1)
    if options.passwd and (not options.user):
        print >>stderr, "You need a user to go with that password!"
        exit(1)
    credentials = {'username': options.user, 'password': options.passwd}

SYSTEM_MANAGER = InteractiveSystemManager('%s:%d' % (hostname, port),
                                          credentials, framed)

print "----------------------------------"
print "Cassandra Interactive Python Shell"
print "----------------------------------"
print "Keyspace: %s" % options.keyspace
print "Host: %s:%d" % (hostname, port)

if options.keyspace:
    _pool = pycassa.QueuePool(keyspace=options.keyspace,
                              server_list=['%s:%d' % (hostname, port)],
                              credentials=credentials,
                              framed_transport=framed,
                              timeout=5)

    print "\nAvailable ColumnFamily instances:"
    for cfname in sorted(SYSTEM_MANAGER.get_keyspace_column_families(options.keyspace).keys()):
        cfinstance = pycassa.ColumnFamily(_pool, cfname)
        exec('%s = cfinstance' % cfname.upper())
        spaces = " " * (25 - len(cfname))
        print " *", cfname.upper(), spaces, "(", cfname, ")"
else:
    print "\nColumnFamily instances are only available if a keyspace is specified with -k/--keyspace"

print "\nSchema definition tools and cluster information are available through SYSTEM_MANAGER."

if (options.file):
    print "\nExecuting script ...",
    execfile(options.file)
    print " done."

runshell()