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# Copyright (c) 2009, 2010 Nicira, Inc.
#
# Licensed 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.
import getopt
import sys
import ovs.json
def print_json(json):
if isinstance(json, str):
print("error: %s" % json)
return False
else:
ovs.json.to_stream(json, sys.stdout)
sys.stdout.write("\n")
return True
def parse_multiple(stream):
buf = stream.read(4096)
ok = True
parser = None
while len(buf):
if parser is None and buf[0] in " \t\r\n":
buf = buf[1:]
else:
if parser is None:
parser = ovs.json.Parser()
n = parser.feed(buf)
buf = buf[n:]
if len(buf):
if not print_json(parser.finish()):
ok = False
parser = None
if len(buf) == 0:
buf = stream.read(4096)
if parser and not print_json(parser.finish()):
ok = False
return ok
def main(argv):
argv0 = argv[0]
try:
options, args = getopt.gnu_getopt(argv[1:], '', ['multiple'])
except getopt.GetoptError as geo:
sys.stderr.write("%s: %s\n" % (argv0, geo.msg))
sys.exit(1)
multiple = False
for key, value in options:
if key == '--multiple':
multiple = True
else:
sys.stderr.write("%s: unhandled option %s\n" % (argv0, key))
sys.exit(1)
if len(args) != 1:
sys.stderr.write("usage: %s [--multiple] INPUT.json\n" % argv0)
sys.exit(1)
input_file = args[0]
if input_file == "-":
stream = sys.stdin
else:
stream = open(input_file, "r")
if multiple:
ok = parse_multiple(stream)
else:
ok = print_json(ovs.json.from_stream(stream))
if not ok:
sys.exit(1)
if __name__ == '__main__':
main(sys.argv)
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