census-instrumentation/Lobby

public void record(MetricsType metrics, String appId, Map<MetricsTagKey, String> tags) {

        Assert.notNull(metrics, "You have to pick a metrics type");
        Assert.notEmpty(tags, "Tags can't be null");

        logger.info("== > Recording metrics '{}' for app ID '{}' with tag values {} ", metrics.toString(), appId, tags.toString());

        TagContextBuilder tcb = tagger.emptyBuilder();

        // add appId
        tcb.putLocal(TagKey.create(MetricsTagKey.APP_ID.key), TagValue.create(appId));

        // add all other tags
        tags.forEach((k, v) -> {
            tcb.putLocal(TagKey.create(k.key), TagValue.create(v));
        });

        TagContext ctx = tcb.build();

        if (metrics.equals(MetricsType.EMAILS_SENT_COUNT)) {
            try (Scope sc = tagger.withTagContext(ctx)) {
                STATS_RECORDER.newMeasureMap().put(emailsSentCount, 1L).record();
            }
        } else {
            // log metrics not supported
        }
    }

        emailsSentCount = MeasureLong.create(monitoringConfig.getProperty(EMAILS_SENT_NAME), 
                                                monitoringConfig.getProperty(EMAILS_SENT_DESCRIPTION), 
                                                "1"); 
        List<TagKey> emailsSentKeys = new ArrayList<>();
        for (MetricsTagKey v: MetricsTagKey.values()) {
            emailsSentKeys.add(TagKey.create(v.key));
        }

        View emailsSentCountView = View.create(Name.create(monitoringConfig.getProperty(EMAILS_SENT_NAME)),
                                                           monitoringConfig.getProperty(EMAILS_SENT_DESCRIPTION), 
                                               emailsSentCount,
                                               Count.create(),
                                               emailsSentKeys);