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java
public static String getStatusAsString(int status) { if (status >= Status.STATUS_ACTIVE && status <= Status.STATUS_ROLLING_BACK) { return TX_STATUS_STRINGS[status]; } else { return "STATUS_INVALID(" + status + ")"; } }
java
static Class getClassForName(String className) throws ClassNotFoundException { // Hack for backwards compatibility with XalanJ1 stylesheets if(className.equals("org.apache.xalan.xslt.extensions.Redirect")) { className = "org.apache.xalan.lib.Redirect"; } return ObjectFactory.findProviderC...
java
@Deprecated @Inline(value="$3.$4sortWith($1, $2)", imported=IterableExtensions.class) public static <T> List<T> sort(Iterable<T> iterable, Comparator<? super T> comparator) { return sortWith(iterable, comparator); }
java
@Test(groups = {SAMPLES}) public void getMonitoringStatisticsGroupedByDatacenters() { List<MonitoringStatsEntry> stats = statisticsService .monitoringStats() .forGroups( new GroupFilter().nameContains(nameCriteria) ) .forTime(new ServerMonitori...
python
def verify(expr, params=None): """ Determine if expression can be successfully translated to execute on MapD """ try: compile(expr, params=params) return True except com.TranslationError: return False
python
def _to_dict(self): """Return a json dictionary representing this model.""" _dict = {} if hasattr(self, 'used_bytes') and self.used_bytes is not None: _dict['used_bytes'] = self.used_bytes return _dict
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public Date rescheduleJob (final TriggerKey triggerKey, final ITrigger newTrigger) throws SchedulerException { validateState (); if (triggerKey == null) throw new IllegalArgumentException ("triggerKey cannot be null"); if (newTrigger == null) throw new IllegalArgumentException ("newTrigger ca...
python
def _init_project_service(self, version): """ Method to initialize the Project Service from the config data Args: version (string): Version of Boss API to use. Returns: None Raises: (KeyError): if given invalid version. """ p...
python
def add(self, name: Any) -> None: """Before adding a new name, it is checked to be valid variable identifiers. >>> from hydpy.core.devicetools import Keywords >>> keywords = Keywords('first_keyword', 'second_keyword', ... 'keyword_3', 'keyword_4', ......
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public static <T> List<Collection<T>> partitionIntoFolds(List<T> values, int numFolds) { List<Collection<T>> folds = new ArrayList<Collection<T>>(); int numValues = values.size(); int foldSize = numValues / numFolds; int remainder = numValues % numFolds; int start = 0; int end = fold...
python
def detect_converters(pattern: str, converter_dict: Dict[str, Callable], default: Callable = str): """ detect pairs of varname and converter from pattern""" converters = {} for matched in VARS_PT.finditer(pattern): matchdict = matched.groupdict() v...
python
def is_identifier(s): """Check whether given string is a valid Python identifier. Note that this excludes language keywords, even though they exhibit a general form of an identifier. See also :func:`has_identifier_form`. :param s: String to check :return: Whether ``s`` is a valid Python identifier...
java
@Override public String getUserDisplayName(String userSecurityName) throws EntryNotFoundException, RegistryException { if (userSecurityName == null) { throw new IllegalArgumentException("userSecurityName is null"); } if (userSecurityName.isEmpty()) { throw new Illegal...
python
def set_split_extents_by_indices_per_axis(self): """ Sets split shape :attr:`split_shape` and split extents (:attr:`split_begs` and :attr:`split_ends`) from values in :attr:`indices_per_axis`. """ if self.indices_per_axis is None: raise ValueError("Got None fo...
python
def setValue(self, key, value): """ Some devices allow to directly set values to perform a specific task. """ LOG.debug("HMGeneric.setValue: address = '%s', key = '%s' value = '%s'" % (self._ADDRESS, key, value)) try: self._proxy.setValue(self._ADDRESS, key, value) ...
python
def gen_yaml_category(): ''' find YAML. ''' for wroot, _, wfiles in os.walk('./database/meta'): for wfile in wfiles: if wfile.endswith('.yaml'): gen_category(os.path.join(wroot, wfile), wfile[0])
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def I(self,**kwargs): #pragma: no cover """ NAME: I PURPOSE: Calculate I, the 'ratio' between the radial and azimutha period INPUT: +scipy.integrate.quadrature keywords OUTPUT: I(R,vT,vT) + estimate of the error HISTORY: ...
python
def __construct_really (project, name, target_type, prop_set, sources): """ Attempts to construct target by finding viable generators, running them and selecting the dependency graph. """ if __debug__: from .targets import ProjectTarget assert isinstance(project, ProjectTarget) ...
python
def ScanForVolumeSystem(self, source_path_spec): """Scans the path specification for a supported volume system format. Args: source_path_spec (PathSpec): source path specification. Returns: PathSpec: volume system path specification or None if no supported volume system type was foun...
java
static boolean contains(CodeSigner[] set, CodeSigner signer) { for (int i = 0; i < set.length; i++) { if (set[i].equals(signer)) return true; } return false; }
python
def to_drawdown_series(prices): """ Calculates the `drawdown <https://www.investopedia.com/terms/d/drawdown.asp>`_ series. This returns a series representing a drawdown. When the price is at all time highs, the drawdown is 0. However, when prices are below high water marks, the drawdown series ...
python
def lines_diff(before_lines, after_lines, check_modified=False): '''Diff the lines in two strings. Parameters ---------- before_lines : iterable Iterable containing lines used as the baseline version. after_lines : iterable Iterable containing lines to be compared against the baseli...
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public void learn(RNNSearch<double[], double[]> range, double[][] samples, double radius, int Nz, double sigma) { TrainSample[] training = new TrainSample[samples.length]; for (int i = 0; i < samples.length; i++) { training[i] = new TrainSample(); training[i].query = samples[i]; ...
java
public static Path pathForFileInRoot( final File rootDir, final File file ) { String filePath = file.getAbsolutePath(); String rootPath = rootDir.getAbsolutePath(); if (!filePath.startsWith(rootPath)) { throw new IllegalArgumentException("not a file in...
java
public final Tuple7<T2, T3, T4, T5, T6, T7, T8> skip1() { return new Tuple7<>(v2, v3, v4, v5, v6, v7, v8); }
python
def run(self): ''' Run server. :return: ''' listen_ip = self._config.get(self.LISTEN_IP, self.DEFAULTS[self.LISTEN_IP]) port = self._config.get(self.PORT, self.DEFAULTS[self.PORT]) self.log.info('Starting service discovery listener on udp://%s:%s', listen_ip, port...
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private void updateTransitive(Collection<Tile> resolved, Tile tile, Tile neighbor, GroupTransition transitive) { final String transitiveOut = transitive.getOut(); final Transition transition = new Transition(TransitionType.CENTER, transitiveOut, transitiveOut); final Collection<TileRef> ...
python
def init(self, with_soft=True): """ The method for the SAT oracle initialization. Since the oracle is is used non-incrementally, it is reinitialized at every iteration of the MaxSAT algorithm (see :func:`reinit`). An input parameter ``with_soft`` (``False`` by def...
java
public void readData(String path) { reset(); resetP(); this.jTextFieldResultPath.setText(path); this.path = path; rf = new ReadFile(path); String str = rf.processFiles(); if (str.equals("")) { int algSize = rf.getAlgShortNames().size(); in...
python
def close(self): """ Unclaim the PEP node and unregister the registered features. It is not necessary to call close if this claim is managed by :class:`~aioxmpp.pep.register_pep_node`. """ if self._closed: return self._closed = True self._pep...
python
def _get_history_lines(self): """Returns list of history entries.""" history_file_name = self._get_history_file_name() if os.path.isfile(history_file_name): with io.open(history_file_name, 'r', encoding='utf-8', errors='ignore') as history_file: ...
python
def get_commands_from_file(self, mission_file, role): """Get commands from xml file as a list of (command_type:int, turnbased:boolean, command:string)""" doc = etree.parse(mission_file) mission = doc.getroot() return self.get_commands_from_xml(mission, role)
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public boolean removeAll(final Collection<?> c, final long occurrences) { checkOccurrences(occurrences); if (N.isNullOrEmpty(c) || occurrences == 0) { return false; } boolean result = false; for (Object e : c) { if (result == false) { ...
python
def usergroup_list(**kwargs): ''' Retrieve all enabled user groups. .. versionadded:: 2016.3.0 :param _connection_user: Optional - zabbix user (can also be set in opts or pillar, see module's docstring) :param _connection_password: Optional - zabbix password (can also be set in opts or pillar, see...
java
public static String getLatkeProperty(final String key) { String ret = latkeProps.getProperty(key); if (StringUtils.isBlank(ret)) { return ret; } ret = replaceEnvVars(ret); return ret; }
java
protected void afterSend(RpcInternalContext context, InvokeContext invokeContext, SofaRequest request) { currentRequests.decrementAndGet(); if (RpcInternalContext.isAttachmentEnable()) { putToContextIfNotNull(invokeContext, InvokeContext.CLIENT_CONN_CREATETIME, context, RpcCo...
java
private static Pointer mapMemory(String mapName, int mode, int size) { HANDLE mapping = Kernel32.INSTANCE.OpenFileMapping(mode, false, mapName); Pointer v = Kernel32.INSTANCE.MapViewOfFile(mapping, mode, 0, 0, new SIZE_T(size)); Kernel32.INSTANCE.CloseHandle(mapping); return v; }
python
def _pnorm_diagweight(x, p, w): """Diagonally weighted p-norm implementation.""" # Ravel both in the same order (w is a numpy array) order = 'F' if all(a.flags.f_contiguous for a in (x.data, w)) else 'C' # This is faster than first applying the weights and then summing with # BLAS dot or nrm2 x...
java
public WasInvalidatedBy newWasInvalidatedBy(QualifiedName id, QualifiedName entity, QualifiedName activity, XMLGregorianCalendar time, Collection<Attribute> attributes) { WasInvalidatedBy res=newWasInvalidatedBy(id,entity,activity); res.setTime(time); setAttributes(res, attributes); return res; }
python
def _get_domain_id(self, domain): """ Pulls all domains managed by authenticated Hetzner account, extracts their IDs and returns the ID for the current domain, if exists. Otherwise raises error. """ api = self.api[self.account]['domain_id'] qdomain = dns.name.from_text(do...
java
HashMap<String, byte[]> getExplainPlans(Catalog catalog) { HashMap<String, byte[]> retval = new HashMap<>(); Database db = getCatalogDatabase(m_catalog); assert(db != null); for (Procedure proc : db.getProcedures()) { for (Statement stmt : proc.getStatements()) { ...
java
public static <T extends CatalogType> void getSortedCatalogItems(CatalogMap<T> items, String sortFieldName, List<T> result) { result.addAll(getSortedCatalogItems(items, sortFieldName )); }
python
def unused_keys(self): """Lists all keys which are present in the ConfigTree but which have not been accessed.""" unused = set() for k, c in self._children.items(): if isinstance(c, ConfigNode): if not c.has_been_accessed(): unused.add(k) ...
java
public ActiveTrustedSigners withItems(Signer... items) { if (this.items == null) { setItems(new com.amazonaws.internal.SdkInternalList<Signer>(items.length)); } for (Signer ele : items) { this.items.add(ele); } return this; }
java
protected RequestContext createRequestContext(HttpServletRequest request, HttpServletResponse response) { return new RequestContext(request, response, servletContext); }
java
public int filterObject(CaptureSearchResult r) { String resultUrl = r.getUrlKey(); return url.equals(resultUrl) ? FILTER_INCLUDE : FILTER_ABORT; }
python
def node_labels(node_labels, node_indices): """Validate that there is a label for each node.""" if len(node_labels) != len(node_indices): raise ValueError("Labels {0} must label every node {1}.".format( node_labels, node_indices)) if len(node_labels) != len(set(node_labels)): ra...
python
def get_instance(self, payload): """ Build an instance of WorkerStatisticsInstance :param dict payload: Payload response from the API :returns: twilio.rest.taskrouter.v1.workspace.worker.worker_statistics.WorkerStatisticsInstance :rtype: twilio.rest.taskrouter.v1.workspace.work...
python
def to_csv(col, options={}): """ Converts a column containing a :class:`StructType` into a CSV string. Throws an exception, in the case of an unsupported type. :param col: name of column containing a struct. :param options: options to control converting. accepts the same options as the CSV datasour...
python
def setPageCount( self, pageCount ): """ Sets the number of pages that this widget holds. :param pageCount | <int> """ if ( pageCount == self._pageCount ): return pageCount = max(1, pageCount) self._pageCount ...
java
@Override public String toJsonString( Object obj ) { try { return objectMapper.writeValueAsString( obj ); } catch ( IOException e ) { throw new JsonMarshalException("Unable to serialize object : " + obj, e ); } }
python
def clean(self, value): """Clean Goes through each of the values in the list, cleans it, stores it, and returns a new list Arguments: value {list} -- The value to clean Returns: list """ # If the value is None and it's optional, return as is if value is None and self._optional: return None ...
python
def _string_to_int(x, vocab): """Given a vocabulary and a string tensor `x`, maps `x` into an int tensor. Args: x: A `Column` representing a string value. vocab: list of strings. Returns: A `Column` where each string value is mapped to an integer representing its index in the vocab. Out of vocab ...
java
public static SimpleModule getModule() { SimpleModule module = new SimpleModule(); module.addSerializer(Headers.class, new HeadersSerializer()); return module; }
java
@Deprecated public static <PE extends ExtensionElement> PE packetExtensionfromCollection( Collection<ExtensionElement> collection, String element, String namespace) { return extensionElementFrom(collection, element, namespace); }
java
public ThymeLeafTemplateImplementation addTemplate(Bundle bundle, URL templateURL) { ThymeLeafTemplateImplementation template = getTemplateByURL(templateURL); if (template != null) { // Already existing. return template; } synchronized (this) { // need...
java
<V> ElementRule<T, V> getRule(ChronoElement<V> element) { return this.getChronology().getRule(element); }
python
def challenges(self): """ Access the challenges :returns: twilio.rest.authy.v1.service.entity.factor.challenge.ChallengeList :rtype: twilio.rest.authy.v1.service.entity.factor.challenge.ChallengeList """ if self._challenges is None: self._challenges = Challen...
python
def load_backends(config, callback, internal_attributes): """ Load all backend modules specified in the config :type config: satosa.satosa_config.SATOSAConfig :type callback: (satosa.context.Context, satosa.internal.InternalData) -> satosa.response.Response :type internal_attributes: dict[strin...
java
@AnyThread public void bodyRemovedFromChannel (ChatChannel channel, final int bodyId) { _peerMan.invokeNodeAction(new ChannelAction(channel) { @Override protected void execute () { ChannelInfo info = _channelMan._channels.get(_channel); if (info != null) { ...
python
def euler_tour(G, node=None, seen=None, visited=None): """ definition from http://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.192.8615&rep=rep1&type=pdf Example: >>> # DISABLE_DOCTEST >>> from utool.experimental.euler_tour_tree_avl import * # NOQA >>> edges = [ >>...
python
def query(self, coords, **kwargs): """ Returns E(B-V), in mags, at the specified location(s) on the sky. Args: coords (:obj:`astropy.coordinates.SkyCoord`): The coordinates to query. Returns: A float array of the reddening, in magnitudes of E(B-V), at the ...
python
def __logfile_error(self, e): """ Shows an error message to standard error if the log file can't be written to. Used internally. @type e: Exception @param e: Exception raised when trying to write to the log file. """ from sys import stderr msg =...
python
def paged_call(function, *args, **kwargs): """Retrieve full set of values from a boto3 API call that may truncate its results, yielding each page as it is obtained. """ marker_flag = kwargs.pop('marker_flag', 'NextMarker') marker_arg = kwargs.pop('marker_arg', 'Marker') while True: ret =...
python
def _meta_name(self, name): """ Translate HTTP header names to the format used by Django request objects. See https://docs.djangoproject.com/en/1.4/ref/request-response/#django.http.HttpRequest.META """ name = name.upper().replace('-', '_') if name not in self.UNPREFIXED...
java
public int getLength() { if (m_count == -1) { short count = 0; for (int n = dtm.getFirstAttribute(element); n != -1; n = dtm.getNextAttribute(n)) { ++count; } m_count = count; } return (int) m_count; }
python
def paginate(objects, page_num, per_page, max_paging_links): """ Return a paginated page for the given objects, giving it a custom ``visible_page_range`` attribute calculated from ``max_paging_links``. """ if not per_page: return Paginator(objects, 0) paginator = Paginator(objects, per_p...
java
public static int silog2Wide(long v) { while (true) { if (v == 0) return 0; if (v > 0) { int l = 0; while (v != 0) { l++; v >>= 1; } return l + 1; } if (v == -1...
python
def __get_subnetwork(vm_): ''' Get configured subnetwork. ''' ex_subnetwork = config.get_cloud_config_value( 'subnetwork', vm_, __opts__, search_global=False) return ex_subnetwork
java
@Override public LiferayWarPackagingProcessor importBuildOutput( MavenResolutionStrategy strategy) { log.debug("Building Liferay Plugin Archive"); ParsedPomFile pomFile = session.getParsedPomFile(); // Compile and add Java classes if (Validate.isReadable(pomFile.getSourceDirectory())) { compile( p...
python
def deserialize(data): """ Create instance from serial data """ # Import module & get class try: module = import_module(data.get('class').get('module')) cls = getattr(module, data.get('class').get('name')) except ImportError: raise Impo...
python
def train(hparams, output_dir, env_problem_name, report_fn=None): """Train.""" env_fn = initialize_env_specs(hparams, env_problem_name) tf.logging.vlog(1, "HParams in trainer_model_free.train : %s", misc_utils.pprint_hparams(hparams)) tf.logging.vlog(1, "Using hparams.base_algo: %s", hparams....
java
public void addValueToKey(K key, V value) { this.addValuesToKey(key, Collections.singletonList(value)); }
java
@Override public void eUnset(int featureID) { switch (featureID) { case XtextPackage.TYPE_REF__METAMODEL: setMetamodel((AbstractMetamodelDeclaration)null); return; case XtextPackage.TYPE_REF__CLASSIFIER: setClassifier((EClassifier)null); return; } super.eUnset(featureID); }
python
def call(self, method, *args, **kwargs): """ Make an XML-RPC call to the server. If this client is logged in (with login()), this call will be authenticated. Koji has its own custom implementation of XML-RPC that supports named args (kwargs). For example, to use the "qu...
java
public void processDocument(WikiDoc doc) { String rawArticleName = doc.name; String articleName = StringUtils.unescapeHTML(rawArticleName); articleName = articleName.trim().toLowerCase(); // skip articles that are not text-based or are // wikipedia-specific if (...
python
def division( cls, divisor, dividend, base, precision=None, method=RoundingMethods.ROUND_DOWN ): """ Division of natural numbers. :param divisor: the divisor :type divisor: list of int :param dividend: the dividend :type di...
python
def downstream(self, f, n=1): """find n downstream features where downstream is determined by the strand of the query Feature f Overlapping features are not considered. f: a Feature object n: the number of features to return """ if f.strand == -1: ret...
java
public UniqueEntityLoader buildLoader( OuterJoinLoadable persister, int batchSize, LockOptions lockOptions, SessionFactoryImplementor factory, LoadQueryInfluencers influencers, BatchableEntityLoaderBuilder innerEntityLoaderBuilder) { if ( batchSize <= 1 ) { // no batching return buildNonBatchi...
java
public ProxyDataSourceBuilder logSlowQueryToSysOut(long thresholdTime, TimeUnit timeUnit) { this.createSysOutSlowQueryListener = true; this.slowQueryThreshold = thresholdTime; this.slowQueryTimeUnit = timeUnit; return this; }
python
def add_nio(self, nio, port_number): """ Adds a NIO as new port on Frame Relay switch. :param nio: NIO instance to add :param port_number: port to allocate for the NIO """ if port_number in self._nios: raise DynamipsError("Port {} isn't free".format(port_num...
python
def check_status_code(response, codes=None): """ Checks response.status_code is in codes. :param requests.request response: Requests response :param list codes: List of accepted codes or callable :raises: StatusCodeError if code invalid """ codes = codes or [200] if response.status_code...
java
public void markTask(StatusTrail st, boolean success) { st.setStatus(success ? JobStatus.done : JobStatus.not_done); st.setAttemptsDone(st.getAttemptsDone() + 1); st.setGivenUp(st.getAttemptsDone() >= getMaxTaskAttempts() ? 1 : 0); updateStatusTrail(st); }
python
def _create_security_groups(self, role): """ Create the security groups for a given role, including a group for the cluster if it doesn't exist. """ self._check_role_name(role) security_group_names = self._get_all_group_names() cluster_group_name = self._get_cluster_group_name() if not ...
java
private SOAPElement constructSoapHeader(Map<String, Object> headerData, AdWordsServiceDescriptor adWordsServiceDescriptor) { String requestHeaderNamespace = adWordsApiConfiguration.getNamespacePrefix() + "/" + adWordsServiceDescriptor.getPackageGroup() + "/" + adWordsServiceDes...
java
private EJBException mapCSIException(EJSDeployedSupport s, CSIException e, Exception rootEx) { if (TraceComponent.isAnyTracingEnabled() && tc.isEntryEnabled()) { Tr.entry(tc, "mapCSIException: " + e); } String message = " "; EJBException ejbex; if (e instanceof C...
java
@Override public void initIterator(Partition dp, S config) { jdbcDeepJobConfig = initConfig(config, jdbcDeepJobConfig); this.jdbcReader = new JdbcReader(jdbcDeepJobConfig); try { this.jdbcReader.init(dp); } catch(Exception e) { throw new DeepGenericException("...
python
def should_show_by_depth(self, cur_level=None): """ Args: cur_level (int): depth level to take into account Returns: bool: True if the given depth level should show messages (not taking into account the log level) """ if cur_level is None:...
java
public String getPrefixStatsMultiplePositionPrefixAttribute(String field) { return String.join(MtasToken.DELIMITER, multiplePositionPrefix.get(field)); }
java
private void cancelButtonActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_cancelButtonActionPerformed Frame frame = ScreenUtil.getFrame(this); frame.remove(this); if (frame != null) ScreenUtil.centerDialogInFrame(loginDialog, frame); loginDialog.setVisible(t...
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private Node createCommaNode(Node expr1, Node expr2) { Node commaNode = IR.comma(expr1, expr2); if (shouldAddTypesOnNewAstNodes) { commaNode.setJSType(expr2.getJSType()); } return commaNode; }
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static Object workObject(Map<String, Object> workList, String name, boolean isArray) { logger.trace("get working object for {}", name); if (workList.get(name) != null) return workList.get(name); else { String[] parts = splitName(name); // parts: (parent, name, isArray) ...
java
@Override public InputSource resolveEntity(String publicId, String systemId) { logger.debug("CMLResolver: resolving ", publicId, ", ", systemId); systemId = systemId.toLowerCase(); if ((systemId.indexOf("cml-1999-05-15.dtd") != -1) || (systemId.indexOf("cml.dtd") != -1) || (s...
java
private static StringBuffer generateBody(MetaEntity entity, Context context) { StringWriter sw = new StringWriter(); PrintWriter pw = null; try { pw = new PrintWriter( sw ); if ( context.addGeneratedAnnotation() ) { pw.println( writeGeneratedAnnotation( entity, context ) ); } if ( context.isAddSu...
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public static ParamWrapper newInstance(String key, Object value) { Map<String, Object> paramMap = new HashMap<String, Object>(16); paramMap.put(key, value); return new ParamWrapper(paramMap); }
python
def _setup_resources(): """Attempt to increase resource limits up to hard limits. This allows us to avoid out of file handle limits where we can move beyond the soft limit up to the hard limit. """ target_procs = 10240 cur_proc, max_proc = resource.getrlimit(resource.RLIMIT_NPROC) target_pr...
java
@Override public void initialize(IAggregator aggregator, IAggregatorExtension extension, IExtensionRegistrar registrar) { final String sourceMethod = "initialize"; //$NON-NLS-1$ boolean isTraceLogging = log.isLoggable(Level.FINER); if (isTraceLogging) { log.entering(BundleVersionsHash.class.getName...
python
def parse(self, inputstring, parser, preargs, postargs): """Use the parser to parse the inputstring with appropriate setup and teardown.""" self.reset() pre_procd = None with logger.gather_parsing_stats(): try: pre_procd = self.pre(inputstring, **preargs) ...
python
def cleanup(self): """ Return aggregated (table, rowdata) tuples and clear the state. """ inserts = [] last_run = self._runs[self._last_run_id] if 'end' not in last_run: last_run['end'] = datetime.now() for run_id in sorted(self._runs): r...
python
def read_format_from_metadata(text, ext): """Return the format of the file, when that information is available from the metadata""" metadata = read_metadata(text, ext) rearrange_jupytext_metadata(metadata) return format_name_for_ext(metadata, ext, explicit_default=False)