Python json.loads函数代码示例

    def dump(self):
        """Returns a dictionnary of all beans and attributes
        
        keys are bean's names
        values are bean's attributes in json format

        ex: 

        {"org.apache.cassandra.db:instance=1826959904,type=DynamicEndpointSnitch":
            {"UpdateInterval":100,
            "Scores":{},
            "SubsnitchClassName":"org.apache.cassandra.locator.SimpleSnitch",
            "BadnessThreshold":0.1,
            "ResetInterval":600000},
        "org.apache.cassandra.db:columnfamily=NodeIdInfo,keyspace=system,type=ColumnFamilies":
            {"LiveSSTableCount":0,
            "LiveDiskSpaceUsed":0,
            "MinimumCompactionThreshold":4,
            "WriteCount":0,
            "RowCacheKeysToSave":2147483647,
            "RecentWriteLatencyHistogramMicros":[0,0,0,0,0,0,0,0,0,0]}
        }

        """

        self._jmx.sendline("dump")
        self._wait_prompt()
        content = self._jmx.before.replace('dump','').strip()
        jsonvar = json.loads(content)
        return jsonvar

    def parse_json(cls, raw, tags=None):
        if tags is None:
            tags = []
        parsed = json.loads(raw)
        metric_base = 'nginx'
        output = []
        all_keys = parsed.keys()

        tagged_keys = [('caches', 'cache'), ('server_zones', 'server_zone'),
                       ('upstreams', 'upstream')]

        # Process the special keys that should turn into tags instead of
        # getting concatenated to the metric name
        for key, tag_name in tagged_keys:
            metric_name = '%s.%s' % (metric_base, tag_name)
            for tag_val, data in parsed.get(key, {}).iteritems():
                tag = '%s:%s' % (tag_name, tag_val)
                output.extend(cls._flatten_json(metric_name, data, tags + [tag]))

        # Process the rest of the keys
        rest = set(all_keys) - set([k for k, _ in tagged_keys])
        for key in rest:
            metric_name = '%s.%s' % (metric_base, key)
            output.extend(cls._flatten_json(metric_name, parsed[key], tags))

        return output

 def get_node_stats(self, base_url):
     url = urlparse.urljoin(base_url, 'nodes')
     stats = []
     try:
         stats = json.loads(urllib2.urlopen(url).read())
     except urllib2.URLError, e:
         raise Exception('Cannot open RabbitMQ API url: %s %s' % (url, str(e)))

    def check(self, logger, agentConfig):

        if 'rabbitMQStatusUrl' not in agentConfig or \
           'rabbitMQUser' not in agentConfig or \
           'rabbitMQPass' not in agentConfig or \
            agentConfig['rabbitMQStatusUrl'] == 'http://www.example.com:55672/json':
            return False

        try:
            logger.debug('getRabbitMQStatus: attempting authentication setup')
            manager = urllib2.HTTPPasswordMgrWithDefaultRealm()
            manager.add_password(None, agentConfig['rabbitMQStatusUrl'], agentConfig['rabbitMQUser'], agentConfig['rabbitMQPass'])
            handler = urllib2.HTTPBasicAuthHandler(manager)
            opener = urllib2.build_opener(handler)
            urllib2.install_opener(opener)

            logger.debug('getRabbitMQStatus: attempting urlopen')
            req = urllib2.Request(agentConfig['rabbitMQStatusUrl'], None, headers(agentConfig))

            # Do the request, log any errors
            request = urllib2.urlopen(req)
            response = request.read()

            return json.loads(response)
        except:
            logger.exception('Unable to get RabbitMQ status')
            return False

 def post(self):
     try:
         payload = json.loads(zlib.decompress(self.request.body))
     except:
         #log.exception("Error parsing the agent's POST request body")
         return
     agent_update(payload)

 def post(self):
     try:
         body = json.loads(self.request.body)
         series = body['series']
     except Exception:
         return
     update(series)

    def _get_json(self, uri, params=None, multi=False):
        """Utility method to get and parse JSON streams."""
        if params:
            uri = "%s?%s" % (uri, urllib.urlencode(params))
        self.log.debug("Connecting to Docker API at: %s" % uri)
        req = urllib2.Request(uri, None)

        try:
            request = self.url_opener.open(req)
        except urllib2.URLError as e:
            if "Errno 13" in str(e):
                raise Exception("Unable to connect to socket. dd-agent user must be part of the 'docker' group")
            raise

        response = request.read()
        response = response.replace('\n', '') # Some Docker API versions occassionally send newlines in responses
        self.log.debug('Docker API response: %s', response)
        if multi and "}{" in response: # docker api sometimes returns juxtaposed json dictionaries
            response = "[{0}]".format(response.replace("}{", "},{"))

        if not response:
            return []

        try:
            return json.loads(response)
        except Exception as e:
            self.log.error('Failed to parse Docker API response: %s', response)
            raise DockerJSONDecodeError

 def get_node_stats(self, base_url):
     url = urlparse.urljoin(base_url, 'nodes')
     stats = []
     try:
         stats = json.loads(urllib2.urlopen(url).read())
     except urllib2.URLError, e:
         self.log.info('Cannot open RabbitMQ API url: %s', url)

    def _get_stats(self, url):
        "Hit a given URL and return the parsed json"
        self.log.debug('Fetching Couchbase stats at url: %s' % url)
        req = urllib2.Request(url, None, headers(self.agentConfig))

        # Do the request, log any errors
        request = urllib2.urlopen(req)
        response = request.read()
        return json.loads(response)

 def _get_data(self, url, auth=None):
     """ Hit a given URL and return the parsed json
         `auth` is a tuple of (username, password) or None
     """
     req = urllib2.Request(url, None, headers(self.agentConfig))
     if auth:
         add_basic_auth(req, *auth)
     request = urllib2.urlopen(req)
     response = request.read()
     return json.loads(response)

 def getInitialUpdatedValue(self):
     """Get updated value
     """
     if self._repository.etcd is None:
         raise ValueError("No etcd available")
     if self._environ:
         path = self._environ.getEtcdPath(self._key)
     else:
         path = self._repository.environ.getEtcdPath(self._key)
     # Get value
     return json.loads(self._repository.etcd.read(path).value)

    def _get_stats(self, url, instance):
        "Hit a given URL and return the parsed json"
        self.log.debug('Fetching Couchbase stats at url: %s' % url)
        req = urllib2.Request(url, None, headers(self.agentConfig))
        if 'user' in instance and 'password' in instance:
            add_basic_auth(req, instance['user'], instance['password'])

        # Do the request, log any errors
        request = urllib2.urlopen(req)
        response = request.read()
        return json.loads(response)

    def _get_stats(self, agentConfig, url):
        "Hit a given URL and return the parsed json"
        try:
            req = urllib2.Request(url, None, headers(agentConfig))

            # Do the request, log any errors
            request = urllib2.urlopen(req)
            response = request.read()
            return json.loads(response)
        except:
            self.logger.exception('Unable to get CouchDB statistics')
            return None

 def __autoupdate__(self):
     """Auto update
     """
     # TODO: Support modified index
     initialized = False
     self.logger.debug("[%s] Auto update thread started", self.Type)
     while True:
         # Get etcd client
         client = None
         while True:
             if self._repository.etcd is None:
                 self.logger.error("[%s] Failed to watch config, no etcd client found, will retry in 30s", self.Type)
                 time.sleep(30)
                 continue
             client = self._repository.etcd
             break
         # Wait for the config
         # Get the read path
         if self._environ:
             path = self._environ.getEtcdPath(self._key)
         else:
             path = self._repository.environ.getEtcdPath(self._key)
         # Wait the config
         try:
             if not initialized:
                 # Not initialized
                 self.logger.debug("[%s] Watching config at path [%s]", self.Type, path)
                 if self.update(json.loads(client.read(path).value)):
                     initialized = True
             else:
                 # Initialized, just wait
                 self.logger.debug("[%s] Watching config at path [%s]", self.Type, path)
                 self.update(json.loads(client.read(path, wait = True).value))
         except (EtcdKeyNotFound, EtcdWatchTimedOut, EtcdEventIndexCleared):
             # A normal error
             time.sleep(10)
         except:
             # Error, wait 30s and continue watch
             self.logger.exception("[%s] Failed to watch etcd, will retry in 30s", self.Type)
             time.sleep(30)

def import_main(options, args):
    if options.flavor == 'friendfeed':
        i = ingest.Ingester(persistence.MongoPersistence())
        flavor_object = friendfeed.FriendFeedInput()
        if options.file is not None:
            result = json.loads(open(options.file, "rb+").read())
        else:
            f = ff.FriendFeedImport(config.friendfeed['username'], config.friendfeed['password'])
            result = f.get_all_home_entries()
        flavor_object.data = result
        i.ingest(flavor_object)
    else:
        print "Not implemented !"