Interface Logging (3.8.0)

Creates a new exclusion in a specified parent resource. Only log entries belonging to that resource can be excluded. You can have up to 10 exclusions in a resource.

Example of creating the exclusion:

 {
   @code
   String exclusionName = "my_exclusion_name";
   Exclusion exclusion = Exclusion.of(exclusionName,
       "resource.type=gcs_bucket severity

Creates a new metric.

Example of creating a metric for logs with severity higher or equal to ERROR.

{ @code String metricName = "my_metric_name"; MetricInfo metricInfo = MetricInfo.of(metricName, "severity>=ERROR"); Metric metric = logging.create(metricInfo); }

Creates a new sink.

Example of creating a sink to export logs to a BigQuery dataset (in the LoggingOptions#getProjectId() project).

{ @code String sinkName = "my_sink_name"; String datasetName = "my_dataset"; SinkInfo sinkInfo = SinkInfo.of(sinkName, DatasetDestination.of(datasetName)); Sink sink = logging.create(sinkInfo); }

Sends a request to create the exclusion. This method returns an ApiFuture object to consume the result. ApiFuture#get() returns the created exclusion.

Example of asynchronously creating the exclusion:

 {
   @code
   String exclusionName = "my_exclusion_name";
   Exclusion exclusion = Exclusion.of(exclusionName,
       "resource.type=gcs_bucket severity

Sends a request for creating a metric. This method returns a ApiFuture object to consume the result. ApiFuture#get() returns the created metric.

Example of asynchronously creating a metric for logs with severity higher or equal to ERROR.

{ @code String metricName = "my_metric_name"; MetricInfo metricInfo = MetricInfo.of(metricName, "severity>=ERROR"); ApiFuture<Metric> future = logging.createAsync(metricInfo); // ... Metric metric = future.get(); }

Sends a request for creating a sink. This method returns a ApiFuture object to consume the result. ApiFuture#get() returns the created sink.

Example of asynchronously creating a sink to export logs to a BigQuery dataset (in the LoggingOptions#getProjectId() project).

{ @code String sinkName = "my_sink_name"; String datasetName = "my_dataset"; SinkInfo sinkInfo = SinkInfo.of(sinkName, DatasetDestination.of(datasetName)); ApiFuture<Sink> future = logging.createAsync(sinkInfo); // ... Sink sink = future.get(); }

Deletes the requested exclusion.

Example of deleting the exclusion:

{ @code String exclusionName = "my_exclusion_name"; boolean deleted = logging.deleteExclusion(exclusionName); if (deleted) { // the exclusion was deleted } else { // the exclusion was not found } }

Sends a request to delete an exclusion. This method returns an ApiFuture object to consume the result. ApiFuture#get() returns true if the exclusion was deleted, false if it was not found.

Example of asynchronously deleting the exclusion:

{ @code String exclusionName = "my_exclusion_name"; ApiFuture<Boolean> future = logging.deleteExclusionAsync(metricName); // ... boolean deleted = future.get(); if (deleted) { // the exclusion was deleted } else { // the exclusion was not found } }

Deletes a log and all its log entries. The log will reappear if new entries are written to it.

Example of deleting a log.

{ @code String logName = "my_log_name"; boolean deleted = logging.deleteLog(logName); if (deleted) { // the log was deleted } else { // the log was not found } }

Deletes a log and all its log entries for given log destination (see 'logName' parameter in https://cloud.google.com/logging/docs/reference/v2/rest/v2/LogEntry). The log will reappear if new entries are written to it.

Example of deleting a log by folder destination.

{ @code String logName = "my_log_name"; String folder = "my_folder"; boolean deleted = logging.deleteLog(logName, LogDestinationName.folder(folder)); if (deleted) { // the log was deleted } else { // the log was not found } }

Sends a request for deleting a log and all its log entries. This method returns a ApiFuture object to consume the result. ApiFuture#get() returns true if the log was deleted, false if it was not found.

Example of asynchronously deleting a log.

{ @code String logName = "my_log_name"; ApiFuture<Boolean> future = logging.deleteLogAsync(logName); // ... boolean deleted = future.get(); if (deleted) { // the log was deleted } else { // the log was not found } }

Sends a request for deleting a log and all its log entries for given log destination (see 'logName' parameter in https://cloud.google.com/logging/docs/reference/v2/rest/v2/LogEntry). This method returns a ApiFuture object to consume the result. ApiFuture#get() returns true if the log was deleted, false if it was not found.

Example of asynchronously deleting a log by folder destination.

{ @code String logName = "my_log_name"; String folder = "my_folder"; ApiFuture<Boolean> future = logging.deleteLogAsync(logName, LogDestinationName.folder(folder)); // ... boolean deleted = future.get(); if (deleted) { // the log was deleted } else { // the log was not found } }

Deletes the requested metric.

Example of deleting a metric.

{ @code String metricName = "my_metric_name"; boolean deleted = logging.deleteMetric(metricName); if (deleted) { // the metric was deleted } else { // the metric was not found } }

Sends a request for deleting a metric. This method returns a ApiFuture object to consume the result. ApiFuture#get() returns true if the metric was deleted, false if it was not found.

Example of asynchronously deleting a metric.

{ @code String metricName = "my_metric_name"; ApiFuture<Boolean> future = logging.deleteMetricAsync(metricName); // ... boolean deleted = future.get(); if (deleted) { // the metric was deleted } else { // the metric was not found } }

Deletes the requested sink.

Example of deleting a sink.

{ @code String sinkName = "my_sink_name"; boolean deleted = logging.deleteSink(sinkName); if (deleted) { // the sink was deleted } else { // the sink was not found } }

Sends a request for deleting a sink. This method returns a ApiFuture object to consume the result. ApiFuture#get() returns true if the sink was deleted, false if it was not found.

Example of asynchronously deleting a sink.

{ @code String sinkName = "my_sink_name"; ApiFuture<Boolean> future = logging.deleteSinkAsync(sinkName); // ... boolean deleted = future.get(); if (deleted) { // the sink was deleted } else { // the sink was not found } }

Flushes any pending asynchronous logging writes. Logs are automatically flushed based on time and message count that be configured via com.google.api.gax.batching.BatchingSettings, Logs are also flushed if enabled, at or above flush severity, see #setFlushSeverity. Logging frameworks require support for an explicit flush. See usage in the java.util.logging handlerLoggingHandler.

Gets the description of an exclusion or null if not found.

Example of getting the description of an exclusion:

{ @code String exclusionName = "my_exclusion_name"; Exclusion exclusion = logging.getExclusion(exclusionName); if (exclusion == null) { // exclusion was not found } }

Sends a request to get the description of an exclusion . This method returns an ApiFuture object to consume the result. ApiFuture#get() returns the requested exclusion or null if not found.

Example of asynchronously getting the exclusion:

{ @code String exclusionName = "my_exclusion_name"; ApiFuture<Exclusion> future = logging.getExclusionAsync(exclusionName); // ... Exclusion exclusion = future.get(); if (exclusion == null) { // exclusion was not found } }

Returns the requested metric or null if not found.

Example of getting a metric.

{ @code String metricName = "my_metric_name"; Metric metric = logging.getMetric(metricName); if (metric == null) { // metric was not found } }

Sends a request for getting a metric. This method returns a ApiFuture object to consume the result. ApiFuture#get() returns the requested metric or null if not found.

Example of asynchronously getting a metric.

{ @code String metricName = "my_metric_name"; ApiFuture<Metric> future = logging.getMetricAsync(metricName); // ... Metric metric = future.get(); if (metric == null) { // metric was not found } }

Returns the requested sink or null if not found.

Example of getting a sink.

{ @code String sinkName = "my_sink_name"; Sink sink = logging.getSink(sinkName); if (sink == null) { // sink was not found } }

Sends a request for getting a sink. This method returns a ApiFuture object to consume the result. ApiFuture#get() returns the requested sink or null if not found.

Example of asynchronously getting a sink.

{ @code String sinkName = "my_sink_name"; ApiFuture<Sink> future = logging.getSinkAsync(sinkName); // ... Sink sink = future.get(); if (sink == null) { // sink was not found } }

Lists the exclusion. This method returns a Page object that can be used to consume paginated results. Use ListOption to specify the page size or the page token from which to start listing exclusion.

Example of listing exclusions, specifying the page size:

{ @code Page<Exclusion> exclusions = logging.listMetrics(ListOption.pageSize(100)); Iterator<Exclusion> exclusionIterator = exclusions.iterateAll().iterator(); while (exclusionIterator.hasNext()) { Exclusion exclusion = exclusionIterator.next(); // do something with the exclusion } }

Sends a request for listing exclusions. This method returns an ApiFuture object to consume the result. ApiFuture#get() returns an AsyncPage object that can be used to asynchronously handle paginated results. Use ListOption to specify the page size or the page token from which to start listing exclusions.

Example of asynchronously listing exclusions, specifying the page size:

 {
   @code
   ApiFuture<AsyncPage<Exclusion>> future = logging.listExclusionsAsync(ListOption.pageSize(100));
   // ...
   AsyncPage<Exclusion> exclusions = future.get();
   Iterator<Exclusion> exclusionIterator = exclusions.iterateAll().iterator();
   while (exclusionIterator.hasNext()) {
     Exclusion exclusion = exclusionIterator.next();
     // do something with the exclusion
   }
 }
 

Lists log entries. This method returns a Page object that can be used to consume paginated results. Use EntryListOption#pageSize(int) to specify the page size. Use EntryListOption#pageToken(String) to specify the page token from which to start listing entries. Use EntryListOption#sortOrder(SortingField, SortingOrder) to sort log entries according to your preferred order (default is most-recent last). Use EntryListOption#filter(String) to filter listed log entries.

Example of listing log entries for a specific log.

{ @code String filter = "logName=projects/my_project_id/logs/my_log_name"; Page<LogEntry> entries = logging.listLogEntries(EntryListOption.filter(filter)); Iterator<LogEntry> entryIterator = entries.iterateAll().iterator(); while (entryIterator.hasNext()) { LogEntry entry = entryIterator.next(); // do something with the entry } }

Sends a request for listing log entries. This method returns a ApiFuture object to consume the result. ApiFuture#get() returns an AsyncPage object that can be used to asynchronously handle paginated results. Use EntryListOption#pageSize(int) to specify the page size. Use EntryListOption#pageToken(String) to specify the page token from which to start listing entries. Use EntryListOption#sortOrder(SortingField, SortingOrder) to sort log entries according to your preferred order (default is most-recent last). Use EntryListOption#filter(String) to filter listed log entries.

Example of asynchronously listing log entries for a specific log.

 {
   @code
   String filter = "logName=projects/my_project_id/logs/my_log_name";
   ApiFuture<AsyncPage<LogEntry>> future = logging.listLogEntriesAsync(EntryListOption.filter(filter));
   // ...
   AsyncPage<LogEntry> entries = future.get();
   Iterator<LogEntry> entryIterator = entries.iterateAll().iterator();
   while (entryIterator.hasNext()) {
     LogEntry entry = entryIterator.next();
     // do something with the entry
   }
 }
 

Lists the log names. This method returns a Page object that can be used to consume paginated results. Use ListOption to specify the page size or the page token from which to start listing logs.

Example of listing log names, specifying the page size.

{ @code Page<Log> logNames = logging.listLogs(ListOption.pageSize(100)); Iterator<Log> logIterator = logNames.iterateAll().iterator(); while (logIterator.hasNext()) { String logName = logIterator.next(); // do something with the log name } }

Sends a request for listing log names. This method returns a ApiFuture object to consume the result. ApiFuture#get() returns an AsyncPage object that can be used to asynchronously handle paginated results. Use ListOption to specify the page size or the page token from which to start listing log names.

Example of asynchronously listing log names, specifying the page size.

 {
   @code
   ApiFuture<AsyncPage<Log>> future = logging.listLogsAsync(ListOption.pageSize(100));
   // ...
   AsyncPage<Sink> logNames = future.get();
   Iterator<Sink> logIterator = logNames.iterateAll().iterator();
   while (logIterator.hasNext()) {
     String logName = logIterator.next();
     // do something with the log name
   }
 }
 

Lists the metrics. This method returns a Page object that can be used to consume paginated results. Use ListOption to specify the page size or the page token from which to start listing metrics.

Example of listing metrics, specifying the page size.

{ @code Page<Metric> metrics = logging.listMetrics(ListOption.pageSize(100)); Iterator<Metric> metricIterator = metrics.iterateAll().iterator(); while (metricIterator.hasNext()) { Metric metric = metricIterator.next(); // do something with the metric } }

Sends a request for listing metrics. This method returns a ApiFuture object to consume the result. ApiFuture#get() returns an AsyncPage object that can be used to asynchronously handle paginated results. Use ListOption to specify the page size or the page token from which to start listing metrics.

Example of asynchronously listing metrics, specifying the page size.

 {
   @code
   ApiFuture<AsyncPage<Metric>> future = logging.listMetricsAsync(ListOption.pageSize(100));
   // ...
   AsyncPage<Metric> metrics = future.get();
   Iterator<Metric> metricIterator = metrics.iterateAll().iterator();
   while (metricIterator.hasNext()) {
     Metric metric = metricIterator.next();
     // do something with the metric
   }
 }
 

Lists the monitored resource descriptors used by Cloud Logging. This method returns a Page object that can be used to consume paginated results. Use ListOption to specify the page size or the page token from which to start listing resource descriptors.

Example of listing monitored resource descriptors, specifying the page size.

{ @code Page<MonitoredResourceDescriptor> descriptors = logging .listMonitoredResourceDescriptors(ListOption.pageSize(100)); Iterator<MonitoredResourceDescriptor> descriptorIterator = descriptors.iterateAll().iterator(); while (descriptorIterator.hasNext()) { MonitoredResourceDescriptor descriptor = descriptorIterator.next(); // do something with the descriptor } }

Sends a request for listing monitored resource descriptors used by Cloud Logging. This method returns a ApiFuture object to consume the result. ApiFuture#get() returns an AsyncPage object that can be used to asynchronously handle paginated results. Use ListOption to specify the page size or the page token from which to start listing resource descriptors.

Example of asynchronously listing monitored resource descriptors, specifying the page size.

 {
   @code
   ApiFuture<AsyncPage<MonitoredResourceDescriptor>> future = logging
       .listMonitoredResourceDescriptorsAsync(ListOption.pageSize(100));
   // ...
   AsyncPage<MonitoredResourceDescriptor> descriptors = future.get();
   Iterator<MonitoredResourceDescriptor> descriptorIterator = descriptors.iterateAll().iterator();
   while (descriptorIterator.hasNext()) {
     MonitoredResourceDescriptor descriptor = descriptorIterator.next();
     // do something with the descriptor
   }
 }
 

Lists the sinks. This method returns a Page object that can be used to consume paginated results. Use ListOption to specify the page size or the page token from which to start listing sinks.

Example of listing sinks, specifying the page size.

{ @code Page<Sink> sinks = logging.listSinks(ListOption.pageSize(100)); Iterator<Sink> sinkIterator = sinks.iterateAll().iterator(); while (sinkIterator.hasNext()) { Sink sink = sinkIterator.next(); // do something with the sink } }

Sends a request for listing sinks. This method returns a ApiFuture object to consume the result. ApiFuture#get() returns an AsyncPage object that can be used to asynchronously handle paginated results. Use ListOption to specify the page size or the page token from which to start listing sinks.

Example of asynchronously listing sinks, specifying the page size.

 {
   @code
   ApiFuture<AsyncPage<Sink>> future = logging.listSinksAsync(ListOption.pageSize(100));
   // ...
   AsyncPage<Sink> sinks = future.get();
   Iterator<Sink> sinkIterator = sinks.iterateAll().iterator();
   while (sinkIterator.hasNext()) {
     Sink sink = sinkIterator.next();
     // do something with the sink
   }
 }
 

Populates metadata fields of the immutable collection of LogEntry items. Only empty fields are populated. The SourceLocation is populated only for items with the severity set to Severity.DEBUG. The information about HttpRequest, trace and span Id is retrieved using ContextHandler.

Sets flush severity for asynchronous logging writes. It is disabled by default, enabled when this method is called with not null value. Logs will be immediately written out for entries at or higher than flush severity.

Enabling this can cause the leaking and hanging threads, see BUG(2796) BUG(3880). However you can explicitly call #flush.

TODO: Enable this by default once functionality to trigger rpc is available in generated code.

Sends a request to stream fresh log entries. The method returns a LogEntryServerStream object to iterate through the returned stream of the log entries. Use EntryListOption#bufferWindow(String)} to specify amount of time to buffer log entries at the server before being returned. entries. Use TailOption#filter(String) to filter tailed log entries.

Example of streaming log entries for a specific project.

 
 LogEntryServerStream stream = logging.tailLogEntries(TailOption.project("my_project_id"));
 Iterator<LogEntry> it = stream.iterator();
 while (it.hasNext()) {
   // do something with entry
   // call stream.cancel(); to stop streaming
 }
 }
 

Updates one or more properties of an existing exclusion.

Example of updating the exclusion:

 {
   @code
   String exclusionName = "my_exclusion_name";
   Exclusion exclusion = Exclusion
       .newBuilder(exclusionName, "resource.type=gcs_bucket severity

Updates a metric or creates one if it does not exist.

Example of updating a metric.

{ @code String metricName = "my_metric_name"; MetricInfo metricInfo = MetricInfo.newBuilder(metricName, "severity>=ERROR").setDescription("new description") .build(); Metric metric = logging.update(metricInfo); }

Updates a sink or creates one if it does not exist.

Example of updating a sink.

{ @code String sinkName = "my_sink_name"; String datasetName = "my_dataset"; SinkInfo sinkInfo = SinkInfo.newBuilder(sinkName, DatasetDestination.of(datasetName)) .setVersionFormat(SinkInfo.VersionFormat.V2).setFilter("severity>=ERROR").build(); Sink sink = logging.update(sinkInfo); }

Sends a request to change one or more properties of an existing exclusion. This method returns an ApiFuture object to consume the result. ApiFuture#get() returns the updated exclusion or null if not found.

Example of asynchronous exclusion update:

 {
   @code
   String exclusionName = "my_exclusion_name";
   Exclusion exclusion = Exclusion
       .newBuilder(exclusionName, "resource.type=gcs_bucket severity

Sends a request for updating a metric (or creating it, if it does not exist). This method returns a ApiFuture object to consume the result. ApiFuture#get() returns the updated/created metric or null if not found.

Example of asynchronously updating a metric.

{ @code String metricName = "my_metric_name"; MetricInfo metricInfo = MetricInfo.newBuilder(metricName, "severity>=ERROR").setDescription("new description") .build(); ApiFuture<Metric> future = logging.updateAsync(metricInfo); // ... Metric metric = future.get(); }

Sends a request for updating a sink (or creating it, if it does not exist). This method returns a ApiFuture object to consume the result. ApiFuture#get() returns the updated/created sink or null if not found.

Example of asynchronously updating a sink.

{ @code String sinkName = "my_sink_name"; String datasetName = "my_dataset"; SinkInfo sinkInfo = SinkInfo.newBuilder(sinkName, DatasetDestination.of(datasetName)) .setVersionFormat(SinkInfo.VersionFormat.V2).setFilter("severity>=ERROR").build(); ApiFuture<Sink> future = logging.updateAsync(sinkInfo); // ... Sink sink = future.get(); }

Sends a request to log entries to Cloud Logging. Use WriteOption#logName(String) to provide a log name for those entries that do not specify one. Use WriteOption#resource(MonitoredResource) to provide a monitored resource for those entries that do not specify one. Use WriteOption#labels(Map) to provide some labels to be added to every entry in logEntries.

Example of writing log entries and providing a default log name and monitored resource.

{ @code String logName = "my_log_name"; List<LogEntry> entries = new ArrayList<>(); entries.add(LogEntry.of(StringPayload.of("Entry payload"))); Map<String, Object> jsonMap = new HashMap<>(); jsonMap.put("key", "value"); entries.add(LogEntry.of(JsonPayload.of(jsonMap))); logging.write(entries, WriteOption.logName(logName), WriteOption.resource(MonitoredResource.newBuilder("global").build())); }