Changes

[maven-release-plugin] prepare release 4.0

[maven-release-plugin] prepare for next development iteration

Bump jackson-databind from 2.9.9.1 to 2.9.10.8 in /tck/rest

Bumps [jackson-databind](https://github.com/FasterXML/jackson) from 2.9.9.1 to 2.9.10.8.
- [Release notes](https://github.com/FasterXML/jackson/releases)
- [Commits](https://github.com/FasterXML/jackson/commits)

---
updated-dependencies:
- dependency-name: com.fasterxml.jackson.core:jackson-databind
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <support@github.com>

Bump jackson-databind from 2.9.9.1 to 2.9.10.8 in /tck/optional

Bumps [jackson-databind](https://github.com/FasterXML/jackson) from 2.9.9.1 to 2.9.10.8.
- [Release notes](https://github.com/FasterXML/jackson/releases)
- [Commits](https://github.com/FasterXML/jackson/commits)

---
updated-dependencies:
- dependency-name: com.fasterxml.jackson.core:jackson-databind
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <support@github.com>

Reduced API

remove registration methods that allow you to register a custom implemented metic

Update pom.xml files to 5.0-SNAPSHOT

Remove references to ConcurrentGauge, SimpleTimer and Meter + Timer needs to implement Metric interface

Remove references to removed Metrics in TCK, modify as necessary

Change to 5.0.0-SNAPSHOT, to include minor version

initial updates for MP Metric 5.0

Signed-off-by: Don Bourne <dbourne@ca.ibm.com>

fix typo in intro doc

Signed-off-by: Don Bourne <dbourne@ca.ibm.com>

docs + copyright

update prometheus format section

Signed-off-by: Don Bourne <dbourne@ca.ibm.com>

fix copyright year

Signed-off-by: Don Bourne <dbourne@ca.ibm.com>

fix scope label

Signed-off-by: Don Bourne <dbourne@ca.ibm.com>

Ammend table with Prometheus output as well

New section for alternatives considered, new references

Signed-off-by: Don Bourne <dbourne@ca.ibm.com>

String val for getType

Introduce ability to have custom scopes
- Remove MetricRegistry.Type and use String constants instead
- Change MetricRegistry.getType() to getScope()
- @RegistryType no longer qualifier, param type() changed to scope()
- Introduce scope annotation param to @Counted, @Timed, @Gauge and
@Metric

Doc + copyright

plugin auto- formatting

doc fixes + add custom scope test to MetricRegistryTest

Change RegistryType to RegistryScope +  document changes from comments

typos!

Update Gauges to only accept Number  values

block use of _scope and _app tag names by apps

Signed-off-by: Don Bourne <dbourne@ca.ibm.com>

javadoc tweaks for MetricRegistry

Signed-off-by: Don Bourne <dbourne@ca.ibm.com>

Remove JSON from spec + TCK

- Remove JSON from specification
- Remove JSON related from MPMetricTest
-- Replace removed JSON tests with Prom tests (some functionality was tested with JSON and not Prom/OM)
- Update ReusedMetricTest to query for Prometheus format
- Replace  deprecated assertThat call in MultipleBeanInstancesTest
- Rename any OpenMetrics mentions to Prometheus
- MetricAppBean modified to use labels correctly (strict name x tag combination)
- Removed JSON from Optional REST test (i.e. MpMetricOptionalTest)
-- Need to validate/test/rewrite in separate PR as current impl unable to do so.

Update Required metrics doc to use Prometheus bas units

Update Snapshot used by Histogram and Timer

- Removed getMedian, getXXXPercentile, getMin, getStdDev, getValues from Snapshot
- Added inner static class PercentileValue to Snapshot, percentileValues() method to Snapshot
- Spec updates
- TCK updates

Address comments.. also add back in the median/50th percentile test

Address comments; keep as Percent base unit

Remove getValue(double percentile), modify TCKs

Update REST TCK to test for a /metrcs?name=<name> that gathers a metric name from all scopes

update packageinfo example for Timers

Signed-off-by: Don Bourne <dbourne@ca.ibm.com>

Fix TCK tests bugs/issues, update to check for Long values where appropriate

Remove displayName from API, TCK, Spec

 Clean up any small problems in TCK

    - Ensure metrics that use the same name x tag combination are exactly
    the same (i.e. can't have metrics with same name where one uses tags and
    the other does not, or that all tag keys used are exactly the same
    - remove references remainig references to removed metrics meter (i.e.
    meter)

update based on review comment

Signed-off-by: Don Bourne <dbourne@ca.ibm.com>

Fix comment in TCK

Tweak to test testGcCountMetrics and testGcTimeMetrics

Remove JSON from spec + TCK

- Remove JSON from specification
- Remove JSON related from MPMetricTest
-- Replace removed JSON tests with Prom tests (some functionality was tested with JSON and not Prom/OM)
- Update ReusedMetricTest to query for Prometheus format
- Replace  deprecated assertThat call in MultipleBeanInstancesTest
- Rename any OpenMetrics mentions to Prometheus
- MetricAppBean modified to use labels correctly (strict name x tag combination)
- Removed JSON from Optional REST test (i.e. MpMetricOptionalTest)
-- Need to validate/test/rewrite in separate PR as current impl unable to do so.

Update REST TCK to test for a /metrcs?name=<name> that gathers a metric name from all scopes

Address comments: typos

Update SPEC and TCK; IllegalArgumentException when metrics using the same name do not have the same tag names

Adresss comments; typos + additional suggested text

Address more comments: use suggestion

First attempt at documenting recommendations for alternative Micrometer Backends

Signed-off-by: Jonathan Gallimore <jgallimore@tomitribe.com>

Incorporating feedback from PR

Change from _app and _scope to mp_app and mp_scope

Address comments; clarify wording + formatting

Adresss further comments

TCK updates

wrong url request in tck

allow metrics endpoint to be disabled

Signed-off-by: Don Bourne <dbourne@ca.ibm.com>

spec updates to make base metrics be optional

Signed-off-by: Don Bourne <dbourne@ca.ibm.com>

update for vendor metrics section

Signed-off-by: Don Bourne <dbourne@ca.ibm.com>

Move Base metrics related REST TCK tests to the optional module

Timer base unit is seconds

Use comment suggestions

WIP: Spec updates  + TCK updates (including using appropriate scope syntax, removing simpletimer artificats), TODO: rest of quantiles? evaluate values?

Further updates to TCK

- Rename OpenMetric References to Prometheus.
- Update all tests to check for quantile output of histogram.
- Included old JSON tests that checked for values; commented out as
reference for todo

Utlize crude way to check for values; that elapsedTime are greater than
0 and that counts are 1, except for a specific endpoint

Add @Deployment

Address comments: fix missing quantile tag, typo

updated list of changes and migration tips

Signed-off-by: Don Bourne <dbourne@ca.ibm.com>

corrected change to changelog

Signed-off-by: Don Bourne <dbourne@ca.ibm.com>

Extra quotes

update histogram change list

Signed-off-by: Don Bourne <dbourne@ca.ibm.com>

Removed section on migrating to 2.0, fixed typo

Signed-off-by: Don Bourne <dbourne@ca.ibm.com>

added PercentileValue to changelog

Signed-off-by: Don Bourne <dbourne@ca.ibm.com>