Polish "Add Quartz actuator endpoint"

This commit reworks the initial proposal so that jobs and triggers are
treated as first class concepts.

`/actuator/quartz` now returns the group names for jobs and triggers.

`actuator/quartz/jobs` returns the job names, keyed by the available
group names, while `/actuator/quartz/triggers` does the same for
triggers.

`/actuator/jobs/{groupName}` provides an overview of a job group. It
provides a map of job names with the class name of the job.
implementation

`/actuator/triggers/{groupName}` provides an overview of a trigger
group. There are five supported trigger implementations: cron, simple,
daily time interval, calendar interval, and custom for any other
implementation. Given that each implementation has specific settings,
triggers are split in five objects.

`/actuator/jobs/{groupName}/{jobName}` provides the full details of a
particular job. This includes a sanitized data map and a list of
triggers ordered by next fire time.

`/actuator/triggers/{groupName}/{triggerName}` provides the full details
of a particular trigger. This includes the state, its type, and a
dedicate object containing implementation-specific settings.

See gh-10364

spring-boot-project/spring-boot-actuator-autoconfigure/src/docs/asciidoc/endpoints/quartz.adoc

+[[quartz]]
+= Quartz (`quartz`)
+
+The `quartz` endpoint provides information about jobs and triggers that are managed by the Quartz Scheduler.
+
+
+
+[[quartz-report]]
+== Retrieving Registered Groups
+
+Jobs and triggers are managed in groups.
+To retrieve the list of registered job and trigger groups, make a `GET` request to `/actuator/quartz`, as shown in the following curl-based example:
+
+include::{snippets}/quartz/report/curl-request.adoc[]
+
+The resulting response is similar to the following:
+
+include::{snippets}/quartz/report/http-response.adoc[]
+
+
+
+[[quartz-report-response-structure]]
+=== Response Structure
+The response contains the groups names for registered jobs and triggers.
+The following table describes the structure of the response:
+
+[cols="3,1,3"]
+include::{snippets}/quartz/report/response-fields.adoc[]
+
+
+
+[[quartz-job-groups]]
+== Retrieving Registered Job Names
+
+To retrieve the list of registered job names, make a `GET` request to `/actuator/quartz/jobs`, as shown in the following curl-based example:
+
+include::{snippets}/quartz/jobs/curl-request.adoc[]
+
+The resulting response is similar to the following:
+
+include::{snippets}/quartz/jobs/http-response.adoc[]
+
+
+[[quartz-job-groups-response-structure]]
+=== Response Structure
+The response contains the registered job names for each group.
+The following table describes the structure of the response:
+
+[cols="3,1,3"]
+include::{snippets}/quartz/jobs/response-fields.adoc[]
+
+
+
+[[quartz-trigger-groups]]
+== Retrieving Registered Trigger Names
+
+To retrieve the list of registered trigger names, make a `GET` request to `/actuator/quartz/triggers`, as shown in the following curl-based example:
+
+include::{snippets}/quartz/triggers/curl-request.adoc[]
+
+The resulting response is similar to the following:
+
+include::{snippets}/quartz/triggers/http-response.adoc[]
+
+
+
+[[quartz-trigger-groups-response-structure]]
+=== Response Structure
+The response contains the registered trigger names for each group.
+The following table describes the structure of the response:
+
+[cols="3,1,3"]
+include::{snippets}/quartz/triggers/response-fields.adoc[]
+
+
+
+[[quartz-job-group]]
+== Retrieving Overview of a Job Group
+
+To retrieve an overview of the jobs in a particular group, make a `GET` request to `/actuator/quartz/jobs/\{groupName}`, as shown in the following curl-based example:
+
+include::{snippets}/quartz/job-group/curl-request.adoc[]
+
+The preceding example retrieves the summary for jobs in the `samples` group.
+The resulting response is similar to the following:
+
+include::{snippets}/quartz/job-group/http-response.adoc[]
+
+
+
+[[quartz-job-group-response-structure]]
+=== Response Structure
+The response contains an overview of jobs in a particular group.
+The following table describes the structure of the response:
+
+[cols="3,1,3"]
+include::{snippets}/quartz/job-group/response-fields.adoc[]
+
+
+
+[[quartz-trigger-group]]
+== Retrieving Overview of a Trigger Group
+
+To retrieve an overview of the triggers in a particular group, make a `GET` request to `/actuator/quartz/triggers/\{groupName}`, as shown in the following curl-based example:
+
+include::{snippets}/quartz/trigger-group/curl-request.adoc[]
+
+The preceding example retrieves the summary for triggers in the `tests` group.
+The resulting response is similar to the following:
+
+include::{snippets}/quartz/trigger-group/http-response.adoc[]
+
+
+
+[[quartz-trigger-group-response-structure]]
+=== Response Structure
+The response contains an overview of triggers in a particular group.
+Trigger implementation specific details are available.
+The following table describes the structure of the response:
+
+[cols="3,1,3"]
+include::{snippets}/quartz/trigger-group/response-fields.adoc[]
+
+
+
+[[quartz-job]]
+== Retrieving Details of a Job
+
+To retrieve the details about a particular job, make a `GET` request to `/actuator/quartz/jobs/\{groupName}/\{jobName}`, as shown in the following curl-based example:
+
+include::{snippets}/quartz/job-details/curl-request.adoc[]
+
+The preceding example retrieves the details of the job identified by the `samples` group and `jobOne` name.
+The resulting response is similar to the following:
+
+include::{snippets}/quartz/job-details/http-response.adoc[]
+
+If a key in the data map is identified as sensitive, its value is sanitized.
+
+[[quartz-job-response-structure]]
+=== Response Structure
+
+The response contains the full details of a job including a summary of the triggers associated with it, if any.
+The triggers are sorted by next fire time and priority.
+The following table describes the structure of the response:
+
+[cols="2,1,3"]
+include::{snippets}/quartz/job-details/response-fields.adoc[]
+
+
+[[quartz-trigger]]
+== Retrieving Details of a Trigger
+
+To retrieve the details about a particular trigger, make a `GET` request to `/actuator/quartz/triggers/\{groupName}/\{triggerName}`, as shown in the following curl-based example:
+
+include::{snippets}/quartz/trigger-details-cron/curl-request.adoc[]
+
+The preceding example retrieves the details of trigger identified by the `samples` group and `example` name.
+
+The resulting response has a common structure and a specific additional object according to the trigger implementation.
+There are five supported types:
+
+* `cron` for `CronTrigger`
+* `simple` for `SimpleTrigger`
+* `dailyTimeInterval` for `DailyTimeIntervalTrigger`
+* `calendarInterval` for `CalendarIntervalTrigger`
+* `custom` for any other trigger implementations
+
+
+
+[[quartz-trigger-cron]]
+=== Cron Trigger Response Structure
+
+A cron trigger defines the cron expression that is used to determine when it has to fire.
+The resulting response for such a trigger implementation is similar to the following:
+
+include::{snippets}/quartz/trigger-details-cron/http-response.adoc[]
+
+
+The following table describes the structure of the response:
+
+[cols="2,1,3"]
+include::{snippets}/quartz/trigger-details-cron/response-fields.adoc[]
+
+
+
+[[quartz-trigger-simple]]
+=== Simple Trigger Response Structure
+
+A simple trigger is used to fire a Job at a given moment in time, and optionally repeated at a specified interval.
+The resulting response for such a trigger implementation is similar to the following:
+
+include::{snippets}/quartz/trigger-details-simple/http-response.adoc[]
+
+
+The following table describes the structure of the response:
+
+[cols="2,1,3"]
+include::{snippets}/quartz/trigger-details-simple/response-fields.adoc[]
+
+
+
+[[quartz-trigger-daily-time-interval]]
+=== Daily Time Interval Trigger Response Structure
+
+A daily time interval trigger is used to fire a Job based upon daily repeating time intervals.
+The resulting response for such a trigger implementation is similar to the following:
+
+include::{snippets}/quartz/trigger-details-daily-time-interval/http-response.adoc[]
+
+
+The following table describes the structure of the response:
+
+[cols="2,1,3"]
+include::{snippets}/quartz/trigger-details-daily-time-interval/response-fields.adoc[]
+
+
+
+[[quartz-trigger-calendar-interval]]
+=== Calendar Interval Trigger Response Structure
+
+A daily time interval trigger is used to fire a Job based upon repeating calendar time intervals.
+The resulting response for such a trigger implementation is similar to the following:
+
+include::{snippets}/quartz/trigger-details-calendar-interval/http-response.adoc[]
+
+
+The following table describes the structure of the response:
+
+[cols="2,1,3"]
+include::{snippets}/quartz/trigger-details-calendar-interval/response-fields.adoc[]
+
+
+
+[[quartz-trigger-custom]]
+=== Custom Trigger Response Structure
+
+A custom trigger is any other implementation.
+The resulting response for such a trigger implementation is similar to the following:
+
+include::{snippets}/quartz/trigger-details-custom/http-response.adoc[]
+
+
+The following table describes the structure of the response:
+
+[cols="2,1,3"]
+include::{snippets}/quartz/trigger-details-custom/response-fields.adoc[]

spring-boot-project/spring-boot-actuator-autoconfigure/src/main/asciidoc/endpoints/quartz.adoc

-[[quartz]]
-= Quartz (`quartz`)
-
-The `quartz` endpoint provides information about the scheduled jobs that are managed by
-Quartz Scheduler.
-
-
-
-[[quartz-report]]
-== Retrieving the Quartz report
-
-To retrieve the Quartz, make a `GET` request to `/application/quartz`,
-as shown in the following curl-based example:
-
-include::{snippets}quartz-report/curl-request.adoc[]
-
-The resulting response is similar to the following:
-
-include::{snippets}quartz-report/http-response.adoc[]
-
-
-
-[[quartz-job]]
-== Retrieving the Quartz job details
-
-To retrieve the Quartz, make a `GET` request to `/application/quartz/{group}/{name}`,
-as shown in the following curl-based example:
-
-include::{snippets}quartz-job/curl-request.adoc[]
-
-The preceding example retrieves the job with the `group` of `groupOne` and `name` of
-`jobOne`. The resulting response is similar to the following:
-
-include::{snippets}quartz-job/http-response.adoc[]
-
-
-
-[[quartz-job-response-structure]]
-=== Response Structure
-
-The response contains details of the scheduled job. The following table describes the
-structure of the response:
-
-[cols="2,1,3"]
-include::{snippets}quartz-job/response-fields.adoc[]

spring-boot-project/spring-boot-actuator-autoconfigure/src/main/java/org/springframework/boot/actuate/autoconfigure/quartz/QuartzEndpointAutoConfiguration.java

 /*
- * Copyright 2012-2017 the original author or authors.
+ * Copyright 2012-2021 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at
  *
- *      http://www.apache.org/licenses/LICENSE-2.0
+ *      https://www.apache.org/licenses/LICENSE-2.0
  *
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,
@@ -20,6 +20,7 @@ import org.quartz.Scheduler;
 
 import org.springframework.boot.actuate.autoconfigure.endpoint.condition.ConditionalOnAvailableEndpoint;
 import org.springframework.boot.actuate.quartz.QuartzEndpoint;
+import org.springframework.boot.actuate.quartz.QuartzEndpointWebExtension;
 import org.springframework.boot.autoconfigure.AutoConfigureAfter;
 import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
 import org.springframework.boot.autoconfigure.condition.ConditionalOnBean;
@@ -33,9 +34,10 @@ import org.springframework.context.annotation.Configuration;
  * {@link EnableAutoConfiguration Auto-configuration} for {@link QuartzEndpoint}.
  *
  * @author Vedran Pavic
- * @since 2.0.0
+ * @author Stephane Nicoll
+ * @since 2.5.0
  */
-@Configuration
+@Configuration(proxyBeanMethods = false)
 @ConditionalOnClass(Scheduler.class)
 @AutoConfigureAfter(QuartzAutoConfiguration.class)
 @ConditionalOnAvailableEndpoint(endpoint = QuartzEndpoint.class)
@@ -48,4 +50,11 @@ public class QuartzEndpointAutoConfiguration {
 		return new QuartzEndpoint(scheduler);
 	}
 
+	@Bean
+	@ConditionalOnBean(QuartzEndpoint.class)
+	@ConditionalOnMissingBean
+	public QuartzEndpointWebExtension quartzEndpointWebExtension(QuartzEndpoint endpoint) {
+		return new QuartzEndpointWebExtension(endpoint);
+	}
+
 }

spring-boot-project/spring-boot-actuator-autoconfigure/src/main/java/org/springframework/boot/actuate/autoconfigure/quartz/package-info.java

 /*
- * Copyright 2012-2017 the original author or authors.
+ * Copyright 2012-2021 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at
  *
- *      http://www.apache.org/licenses/LICENSE-2.0
+ *      https://www.apache.org/licenses/LICENSE-2.0
  *
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,

spring-boot-project/spring-boot-actuator-autoconfigure/src/test/java/org/springframework/boot/actuate/autoconfigure/quartz/QuartzEndpointAutoConfigurationTests.java

 /*
- * Copyright 2012-2017 the original author or authors.
+ * Copyright 2012-2021 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at
  *
- *      http://www.apache.org/licenses/LICENSE-2.0
+ *      https://www.apache.org/licenses/LICENSE-2.0
  *
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,
@@ -16,7 +16,7 @@
 
 package org.springframework.boot.actuate.autoconfigure.quartz;
 
-import org.junit.Test;
+import org.junit.jupiter.api.Test;
 import org.quartz.Scheduler;
 
 import org.springframework.boot.actuate.quartz.QuartzEndpoint;
@@ -32,30 +32,59 @@ import static org.mockito.Mockito.mock;
  * Tests for {@link QuartzEndpointAutoConfiguration}.
  *
  * @author Vedran Pavic
+ * @author Stephane Nicoll
  */
-public class QuartzEndpointAutoConfigurationTests {
+class QuartzEndpointAutoConfigurationTests {
 
 	private final ApplicationContextRunner contextRunner = new ApplicationContextRunner()
-			.withConfiguration(AutoConfigurations.of(QuartzEndpointAutoConfiguration.class))
-			.withUserConfiguration(QuartzConfiguration.class);
+			.withConfiguration(AutoConfigurations.of(QuartzEndpointAutoConfiguration.class));
 
 	@Test
-	public void runShouldHaveEndpointBean() {
-		this.contextRunner.run((context) -> assertThat(context).hasSingleBean(QuartzEndpoint.class));
+	void endpointIsAutoConfigured() {
+		this.contextRunner.withBean(Scheduler.class, () -> mock(Scheduler.class))
+				.withPropertyValues("management.endpoints.web.exposure.include=quartz")
+				.run((context) -> assertThat(context).hasSingleBean(QuartzEndpoint.class));
 	}
 
 	@Test
-	public void runWhenEnabledPropertyIsFalseShouldNotHaveEndpointBean() throws Exception {
-		this.contextRunner.withPropertyValues("management.endpoint.quartz.enabled:false")
+	void endpointIsNotAutoConfiguredIfSchedulerIsNotAvailable() {
+		this.contextRunner.withPropertyValues("management.endpoints.web.exposure.include=quartz")
 				.run((context) -> assertThat(context).doesNotHaveBean(QuartzEndpoint.class));
 	}
 
-	@Configuration
-	static class QuartzConfiguration {
+	@Test
+	void endpointNotAutoConfiguredWhenNotExposed() {
+		this.contextRunner.withBean(Scheduler.class, () -> mock(Scheduler.class))
+				.run((context) -> assertThat(context).doesNotHaveBean(QuartzEndpoint.class));
+	}
+
+	@Test
+	void endpointCanBeDisabled() {
+		this.contextRunner.withBean(Scheduler.class, () -> mock(Scheduler.class))
+				.withPropertyValues("management.endpoint.quartz.enabled:false")
+				.run((context) -> assertThat(context).doesNotHaveBean(QuartzEndpoint.class));
+	}
+
+	@Test
+	void endpointBacksOffWhenUserProvidedEndpointIsPresent() {
+		this.contextRunner.withUserConfiguration(CustomEndpointConfiguration.class)
+				.run((context) -> assertThat(context).hasSingleBean(QuartzEndpoint.class).hasBean("customEndpoint"));
+	}
+
+	@Configuration(proxyBeanMethods = false)
+	static class CustomEndpointConfiguration {
 
 		@Bean
-		public Scheduler scheduler() {
-			return mock(Scheduler.class);
+		CustomEndpoint customEndpoint() {
+			return new CustomEndpoint();
+		}
+
+	}
+
+	private static final class CustomEndpoint extends QuartzEndpoint {
+
+		private CustomEndpoint() {
+			super(mock(Scheduler.class));
 		}
 
 	}

spring-boot-project/spring-boot-actuator/src/main/java/org/springframework/boot/actuate/quartz/QuartzEndpointWebExtension.java

+/*
+ * Copyright 2012-2021 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.springframework.boot.actuate.quartz;
+
+import org.quartz.SchedulerException;
+
+import org.springframework.boot.actuate.endpoint.annotation.ReadOperation;
+import org.springframework.boot.actuate.endpoint.annotation.Selector;
+import org.springframework.boot.actuate.endpoint.web.WebEndpointResponse;
+import org.springframework.boot.actuate.endpoint.web.annotation.EndpointWebExtension;
+import org.springframework.boot.actuate.quartz.QuartzEndpoint.QuartzGroups;
+
+/**
+ * {@link EndpointWebExtension @EndpointWebExtension} for the {@link QuartzEndpoint}.
+ *
+ * @author Stephane Nicoll
+ * @since 2.5.0
+ */
+@EndpointWebExtension(endpoint = QuartzEndpoint.class)
+public class QuartzEndpointWebExtension {
+
+	private final QuartzEndpoint delegate;
+
+	public QuartzEndpointWebExtension(QuartzEndpoint delegate) {
+		this.delegate = delegate;
+	}
+
+	@ReadOperation
+	public WebEndpointResponse<QuartzGroups> quartzJobOrTriggerGroups(@Selector String jobsOrTriggers)
+			throws SchedulerException {
+		return handle(jobsOrTriggers, this.delegate::quartzJobGroups, this.delegate::quartzTriggerGroups);
+	}
+
+	@ReadOperation
+	public WebEndpointResponse<Object> quartzJobOrTriggerGroup(@Selector String jobsOrTriggers, @Selector String group)
+			throws SchedulerException {
+		return handle(jobsOrTriggers, () -> this.delegate.quartzJobGroupSummary(group),
+				() -> this.delegate.quartzTriggerGroupSummary(group));
+	}
+
+	@ReadOperation
+	public WebEndpointResponse<Object> quartzJobOrTrigger(@Selector String jobsOrTriggers, @Selector String group,
+			@Selector String name) throws SchedulerException {
+		return handle(jobsOrTriggers, () -> this.delegate.quartzJob(group, name),
+				() -> this.delegate.quartzTrigger(group, name));
+	}
+
+	private <T> WebEndpointResponse<T> handle(String jobsOrTriggers, ResponseSupplier<T> jobAction,
+			ResponseSupplier<T> triggerAction) throws SchedulerException {
+		if ("jobs".equals(jobsOrTriggers)) {
+			return handleNull(jobAction.get());
+		}
+		if ("triggers".equals(jobsOrTriggers)) {
+			return handleNull(triggerAction.get());
+		}
+		return new WebEndpointResponse<>(WebEndpointResponse.STATUS_BAD_REQUEST);
+	}
+
+	private <T> WebEndpointResponse<T> handleNull(T value) {
+		if (value != null) {
+			return new WebEndpointResponse<>(value);
+		}
+		return new WebEndpointResponse<>(WebEndpointResponse.STATUS_NOT_FOUND);
+	}
+
+	@FunctionalInterface
+	private interface ResponseSupplier<T> {
+
+		T get() throws SchedulerException;
+
+	}
+
+}

spring-boot-project/spring-boot-actuator/src/main/java/org/springframework/boot/actuate/quartz/package-info.java

 /*
- * Copyright 2012-2017 the original author or authors.
+ * Copyright 2012-2021 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at
  *
- *      http://www.apache.org/licenses/LICENSE-2.0
+ *      https://www.apache.org/licenses/LICENSE-2.0
  *
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,

spring-boot-project/spring-boot-actuator/src/test/java/org/springframework/boot/actuate/quartz/QuartzEndpointWebIntegrationTests.java

+/*
+ * Copyright 2012-2019 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.springframework.boot.actuate.quartz;
+
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.LinkedHashSet;
+import java.util.List;
+import java.util.Map.Entry;
+
+import net.minidev.json.JSONArray;
+import org.quartz.CalendarIntervalScheduleBuilder;
+import org.quartz.CalendarIntervalTrigger;
+import org.quartz.CronScheduleBuilder;
+import org.quartz.CronTrigger;
+import org.quartz.Job;
+import org.quartz.JobBuilder;
+import org.quartz.JobDataMap;
+import org.quartz.JobDetail;
+import org.quartz.JobKey;
+import org.quartz.Scheduler;
+import org.quartz.SchedulerException;
+import org.quartz.SimpleScheduleBuilder;
+import org.quartz.SimpleTrigger;
+import org.quartz.Trigger;
+import org.quartz.Trigger.TriggerState;
+import org.quartz.TriggerBuilder;
+import org.quartz.TriggerKey;
+import org.quartz.impl.matchers.GroupMatcher;
+
+import org.springframework.boot.actuate.endpoint.web.test.WebEndpointTest;
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+import org.springframework.scheduling.quartz.DelegatingJob;
+import org.springframework.test.web.reactive.server.WebTestClient;
+import org.springframework.util.LinkedMultiValueMap;
+import org.springframework.util.MultiValueMap;
+
+import static org.mockito.BDDMockito.given;
+import static org.mockito.Mockito.mock;
+
+/**
+ * Integration tests for {@link QuartzEndpoint} exposed by Jersey, Spring MVC, and
+ * WebFlux.
+ *
+ * @author Stephane Nicoll
+ */
+class QuartzEndpointWebIntegrationTests {
+
+	private static final JobDetail jobOne = JobBuilder.newJob(Job.class).withIdentity("jobOne", "samples")
+			.usingJobData(new JobDataMap(Collections.singletonMap("name", "test"))).withDescription("A sample job")
+			.build();
+
+	private static final JobDetail jobTwo = JobBuilder.newJob(DelegatingJob.class).withIdentity("jobTwo", "samples")
+			.build();
+
+	private static final JobDetail jobThree = JobBuilder.newJob(Job.class).withIdentity("jobThree").build();
+
+	private static final CronTrigger triggerOne = TriggerBuilder.newTrigger().withDescription("Once a day 3AM")
+			.withIdentity("triggerOne").withSchedule(CronScheduleBuilder.dailyAtHourAndMinute(3, 0)).build();
+
+	private static final SimpleTrigger triggerTwo = TriggerBuilder.newTrigger().withDescription("Once a day")
+			.withIdentity("triggerTwo", "tests").withSchedule(SimpleScheduleBuilder.repeatHourlyForever(24)).build();
+
+	private static final CalendarIntervalTrigger triggerThree = TriggerBuilder.newTrigger()
+			.withDescription("Once a week").withIdentity("triggerThree", "tests")
+			.withSchedule(CalendarIntervalScheduleBuilder.calendarIntervalSchedule().withIntervalInWeeks(1)).build();
+
+	@WebEndpointTest
+	void quartzReport(WebTestClient client) {
+		client.get().uri("/actuator/quartz").exchange().expectStatus().isOk().expectBody().jsonPath("jobs.groups")
+				.isEqualTo(new JSONArray().appendElement("samples").appendElement("DEFAULT"))
+				.jsonPath("triggers.groups").isEqualTo(new JSONArray().appendElement("DEFAULT").appendElement("tests"));
+	}
+
+	@WebEndpointTest
+	void quartzJobNames(WebTestClient client) {
+		client.get().uri("/actuator/quartz/jobs").exchange().expectStatus().isOk().expectBody()
+				.jsonPath("groups.samples.jobs")
+				.isEqualTo(new JSONArray().appendElement("jobOne").appendElement("jobTwo"))
+				.jsonPath("groups.DEFAULT.jobs").isEqualTo(new JSONArray().appendElement("jobThree"));
+	}
+
+	@WebEndpointTest
+	void quartzTriggerNames(WebTestClient client) {
+		client.get().uri("/actuator/quartz/triggers").exchange().expectStatus().isOk().expectBody()
+				.jsonPath("groups.DEFAULT.paused").isEqualTo(false).jsonPath("groups.DEFAULT.triggers")
+				.isEqualTo(new JSONArray().appendElement("triggerOne")).jsonPath("groups.tests.paused").isEqualTo(false)
+				.jsonPath("groups.tests.triggers")
+				.isEqualTo(new JSONArray().appendElement("triggerTwo").appendElement("triggerThree"));
+	}
+
+	@WebEndpointTest
+	void quartzTriggersOrJobsAreAllowed(WebTestClient client) {
+		client.get().uri("/actuator/quartz/something-elese").exchange().expectStatus().isBadRequest();
+	}
+
+	@WebEndpointTest
+	void quartzJobGroupSummary(WebTestClient client) {
+		client.get().uri("/actuator/quartz/jobs/samples").exchange().expectStatus().isOk().expectBody()
+				.jsonPath("group").isEqualTo("samples").jsonPath("jobs.jobOne.className").isEqualTo(Job.class.getName())
+				.jsonPath("jobs.jobTwo.className").isEqualTo(DelegatingJob.class.getName());
+	}
+
+	@WebEndpointTest
+	void quartzJobGroupSummaryWithUnknownGroup(WebTestClient client) {
+		client.get().uri("/actuator/quartz/jobs/does-not-exist").exchange().expectStatus().isNotFound();
+	}
+
+	@WebEndpointTest
+	void quartzTriggerGroupSummary(WebTestClient client) {
+		client.get().uri("/actuator/quartz/triggers/tests").exchange().expectStatus().isOk().expectBody()
+				.jsonPath("group").isEqualTo("tests").jsonPath("paused").isEqualTo("false").jsonPath("triggers.cron")
+				.isEmpty().jsonPath("triggers.simple.triggerTwo.interval").isEqualTo(86400000)
+				.jsonPath("triggers.dailyTimeInterval").isEmpty()
+				.jsonPath("triggers.calendarInterval.triggerThree.interval").isEqualTo(604800000)
+				.jsonPath("triggers.custom").isEmpty();
+	}
+
+	@WebEndpointTest
+	void quartzTriggerGroupSummaryWithUnknownGroup(WebTestClient client) {
+		client.get().uri("/actuator/quartz/triggers/does-not-exist").exchange().expectStatus().isNotFound();
+	}
+
+	@WebEndpointTest
+	void quartzJobDetail(WebTestClient client) {
+		client.get().uri("/actuator/quartz/jobs/samples/jobOne").exchange().expectStatus().isOk().expectBody()
+				.jsonPath("group").isEqualTo("samples").jsonPath("name").isEqualTo("jobOne").jsonPath("data.name")
+				.isEqualTo("test");
+	}
+
+	@WebEndpointTest
+	void quartzJobDetailWithUnknownKey(WebTestClient client) {
+		client.get().uri("/actuator/quartz/jobs/samples/does-not-exist").exchange().expectStatus().isNotFound();
+	}
+
+	@WebEndpointTest
+	void quartzTriggerDetail(WebTestClient client) {
+		client.get().uri("/actuator/quartz/triggers/DEFAULT/triggerOne").exchange().expectStatus().isOk().expectBody()
+				.jsonPath("group").isEqualTo("DEFAULT").jsonPath("name").isEqualTo("triggerOne").jsonPath("description")
+				.isEqualTo("Once a day 3AM").jsonPath("state").isEqualTo("NORMAL").jsonPath("type").isEqualTo("cron")
+				.jsonPath("simple").doesNotExist().jsonPath("calendarInterval").doesNotExist().jsonPath("dailyInterval")
+				.doesNotExist().jsonPath("custom").doesNotExist().jsonPath("cron.expression").isEqualTo("0 0 3 ? * *");
+	}
+
+	@WebEndpointTest
+	void quartzTriggerDetailWithUnknownKey(WebTestClient client) {
+		client.get().uri("/actuator/quartz/triggers/tests/does-not-exist").exchange().expectStatus().isNotFound();
+	}
+
+	@Configuration(proxyBeanMethods = false)
+	static class TestConfiguration {
+
+		@Bean
+		Scheduler scheduler() throws SchedulerException {
+			Scheduler scheduler = mock(Scheduler.class);
+			mockJobs(scheduler, jobOne, jobTwo, jobThree);
+			mockTriggers(scheduler, triggerOne, triggerTwo, triggerThree);
+			return scheduler;
+		}
+
+		@Bean
+		QuartzEndpoint endpoint(Scheduler scheduler) {
+			return new QuartzEndpoint(scheduler);
+		}
+
+		@Bean
+		QuartzEndpointWebExtension quartzEndpointWebExtension(QuartzEndpoint endpoint) {
+			return new QuartzEndpointWebExtension(endpoint);
+		}
+
+		private void mockJobs(Scheduler scheduler, JobDetail... jobs) throws SchedulerException {
+			MultiValueMap<String, JobKey> jobKeys = new LinkedMultiValueMap<>();
+			for (JobDetail jobDetail : jobs) {
+				JobKey key = jobDetail.getKey();
+				given(scheduler.getJobDetail(key)).willReturn(jobDetail);
+				jobKeys.add(key.getGroup(), key);
+			}
+			given(scheduler.getJobGroupNames()).willReturn(new ArrayList<>(jobKeys.keySet()));
+			for (Entry<String, List<JobKey>> entry : jobKeys.entrySet()) {
+				given(scheduler.getJobKeys(GroupMatcher.jobGroupEquals(entry.getKey())))
+						.willReturn(new LinkedHashSet<>(entry.getValue()));
+			}
+		}
+
+		void mockTriggers(Scheduler scheduler, Trigger... triggers) throws SchedulerException {
+			MultiValueMap<String, TriggerKey> triggerKeys = new LinkedMultiValueMap<>();
+			for (Trigger trigger : triggers) {
+				TriggerKey key = trigger.getKey();
+				given(scheduler.getTrigger(key)).willReturn(trigger);
+				given(scheduler.getTriggerState(key)).willReturn(TriggerState.NORMAL);
+				triggerKeys.add(key.getGroup(), key);
+			}
+			given(scheduler.getTriggerGroupNames()).willReturn(new ArrayList<>(triggerKeys.keySet()));
+			for (Entry<String, List<TriggerKey>> entry : triggerKeys.entrySet()) {
+				given(scheduler.getTriggerKeys(GroupMatcher.triggerGroupEquals(entry.getKey())))
+						.willReturn(new LinkedHashSet<>(entry.getValue()));
+			}
+		}
+
+	}
+
+}

spring-boot-project/spring-boot-docs/src/docs/asciidoc/production-ready-features.adoc

@@ -112,6 +112,9 @@ The following technology-agnostic endpoints are available:
 | `mappings`
 | Displays a collated list of all `@RequestMapping` paths.
 
+|`quartz`
+|Shows information about Quartz Scheduler jobs.
+
 | `scheduledtasks`
 | Displays the scheduled tasks in your application.
 
@@ -272,6 +275,10 @@ The following table shows the default exposure for the built-in endpoints:
 | N/A
 | No
 
+| `quartz`
+| Yes
+| No
+
 | `scheduledtasks`
 | Yes
 | No

spring-boot-tests/spring-boot-smoke-tests/spring-boot-smoke-test-quartz/build.gradle

@@ -6,8 +6,10 @@ plugins {
 description = "Spring Boot Quartz smoke test"
 
 dependencies {
-	implementation(project(":spring-boot-project:spring-boot-starters:spring-boot-starter-jdbc"))
+    implementation(project(":spring-boot-project:spring-boot-starters:spring-boot-starter-web"))
+    implementation(project(":spring-boot-project:spring-boot-starters:spring-boot-starter-actuator"))
 	implementation(project(":spring-boot-project:spring-boot-starters:spring-boot-starter-quartz"))
+    implementation(project(":spring-boot-project:spring-boot-starters:spring-boot-starter-jdbc"))
 
 	runtimeOnly("com.h2database:h2")
 

spring-boot-tests/spring-boot-smoke-tests/spring-boot-smoke-test-quartz/src/main/java/smoketest/quartz/SampleQuartzApplication.java

 /*
- * Copyright 2012-2019 the original author or authors.
+ * Copyright 2012-2021 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -16,9 +16,16 @@
 
 package smoketest.quartz;
 
+import java.util.Calendar;
+
+import org.quartz.CalendarIntervalScheduleBuilder;
+import org.quartz.CronScheduleBuilder;
+import org.quartz.DailyTimeIntervalScheduleBuilder;
+import org.quartz.DateBuilder.IntervalUnit;
 import org.quartz.JobBuilder;
 import org.quartz.JobDetail;
 import org.quartz.SimpleScheduleBuilder;
+import org.quartz.TimeOfDay;
 import org.quartz.Trigger;
 import org.quartz.TriggerBuilder;
 
@@ -34,18 +41,50 @@ public class SampleQuartzApplication {
 	}
 
 	@Bean
-	public JobDetail sampleJobDetail() {
-		return JobBuilder.newJob(SampleJob.class).withIdentity("sampleJob").usingJobData("name", "World").storeDurably()
-				.build();
+	public JobDetail helloJobDetail() {
+		return JobBuilder.newJob(SampleJob.class).withIdentity("helloJob", "samples").usingJobData("name", "World")
+				.storeDurably().build();
+	}
+
+	@Bean
+	public JobDetail anotherJobDetail() {
+		return JobBuilder.newJob(SampleJob.class).withIdentity("anotherJob", "samples").usingJobData("name", "Everyone")
+				.storeDurably().build();
+	}
+
+	@Bean
+	public Trigger everyTwoSecTrigger() {
+		return TriggerBuilder.newTrigger().forJob("helloJob", "samples").withIdentity("sampleTrigger")
+				.withSchedule(SimpleScheduleBuilder.simpleSchedule().withIntervalInSeconds(2).repeatForever()).build();
+	}
+
+	@Bean
+	public Trigger everyDayTrigger() {
+		return TriggerBuilder.newTrigger().forJob("helloJob", "samples").withIdentity("every-day", "samples")
+				.withSchedule(SimpleScheduleBuilder.repeatHourlyForever(24)).build();
 	}
 
 	@Bean
-	public Trigger sampleJobTrigger() {
-		SimpleScheduleBuilder scheduleBuilder = SimpleScheduleBuilder.simpleSchedule().withIntervalInSeconds(2)
-				.repeatForever();
+	public Trigger threeAmWeekdaysTrigger() {
+		return TriggerBuilder.newTrigger().forJob("anotherJob", "samples").withIdentity("3am-weekdays", "samples")
+				.withSchedule(CronScheduleBuilder.atHourAndMinuteOnGivenDaysOfWeek(3, 0, 1, 2, 3, 4, 5)).build();
+	}
 
-		return TriggerBuilder.newTrigger().forJob(sampleJobDetail()).withIdentity("sampleTrigger")
-				.withSchedule(scheduleBuilder).build();
+	@Bean
+	public Trigger onceAWeekTrigger() {
+		return TriggerBuilder.newTrigger().forJob("anotherJob", "samples").withIdentity("once-a-week", "samples")
+				.withSchedule(CalendarIntervalScheduleBuilder.calendarIntervalSchedule().withIntervalInWeeks(1))
+				.build();
+	}
+
+	@Bean
+	public Trigger everyHourWorkingHourTuesdayAndThursdayTrigger() {
+		return TriggerBuilder.newTrigger().forJob("helloJob", "samples").withIdentity("every-hour-tue-thu", "samples")
+				.withSchedule(DailyTimeIntervalScheduleBuilder.dailyTimeIntervalSchedule()
+						.onDaysOfTheWeek(Calendar.TUESDAY, Calendar.THURSDAY)
+						.startingDailyAt(TimeOfDay.hourAndMinuteOfDay(9, 0))
+						.endingDailyAt(TimeOfDay.hourAndMinuteOfDay(18, 0)).withInterval(1, IntervalUnit.HOUR))
+				.build();
 	}
 
 }

spring-boot-tests/spring-boot-smoke-tests/spring-boot-smoke-test-quartz/src/main/resources/application.properties

 spring.quartz.job-store-type=jdbc
+
+management.endpoints.web.exposure.include=health,quartz
\ No newline at end of file

spring-boot-tests/spring-boot-smoke-tests/spring-boot-smoke-test-quartz/src/test/java/smoketest/quartz/SampleQuartzApplicationTests.java

 /*
- * Copyright 2012-2019 the original author or authors.
+ * Copyright 2012-2021 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -38,8 +38,9 @@ import static org.hamcrest.Matchers.containsString;
 class SampleQuartzApplicationTests {
 
 	@Test
-	void quartzJobIsTriggered(CapturedOutput output) throws InterruptedException {
-		try (ConfigurableApplicationContext context = SpringApplication.run(SampleQuartzApplication.class)) {
+	void quartzJobIsTriggered(CapturedOutput output) {
+		try (ConfigurableApplicationContext context = SpringApplication.run(SampleQuartzApplication.class,
+				"--server.port=0")) {
 			Awaitility.waitAtMost(Duration.ofSeconds(5)).until(output::toString, containsString("Hello World!"));
 		}
 	}

spring-boot-tests/spring-boot-smoke-tests/spring-boot-smoke-test-quartz/src/test/java/smoketest/quartz/SampleQuartzApplicationWebTests.java

+/*
+ * Copyright 2012-2021 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package smoketest.quartz;
+
+import java.util.Map;
+
+import org.assertj.core.api.InstanceOfAssertFactories;
+import org.assertj.core.api.InstanceOfAssertFactory;
+import org.assertj.core.api.MapAssert;
+import org.junit.jupiter.api.Test;
+
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.boot.test.context.SpringBootTest;
+import org.springframework.boot.test.context.SpringBootTest.WebEnvironment;
+import org.springframework.boot.test.web.client.TestRestTemplate;
+import org.springframework.http.HttpStatus;
+import org.springframework.http.ResponseEntity;
+
+import static org.assertj.core.api.Assertions.assertThat;
+import static org.assertj.core.api.Assertions.entry;
+
+/**
+ * Web tests for {@link SampleQuartzApplication}.
+ *
+ * @author Stephane Nicoll
+ */
+@SpringBootTest(webEnvironment = WebEnvironment.RANDOM_PORT)
+public class SampleQuartzApplicationWebTests {
+
+	@Autowired
+	private TestRestTemplate restTemplate;
+
+	@Test
+	void quartzGroupNames() {
+		Map<String, Object> content = getContent("/actuator/quartz");
+		assertThat(content).containsOnlyKeys("jobs", "triggers");
+	}
+
+	@Test
+	void quartzJobGroups() {
+		Map<String, Object> content = getContent("/actuator/quartz/jobs");
+		assertThat(content).containsOnlyKeys("groups");
+		assertThat(content).extractingByKey("groups", nestedMap()).containsOnlyKeys("samples");
+	}
+
+	@Test
+	void quartzTriggerGroups() {
+		Map<String, Object> content = getContent("/actuator/quartz/triggers");
+		assertThat(content).containsOnlyKeys("groups");
+		assertThat(content).extractingByKey("groups", nestedMap()).containsOnlyKeys("DEFAULT", "samples");
+	}
+
+	@Test
+	void quartzJobDetail() {
+		Map<String, Object> content = getContent("/actuator/quartz/jobs/samples/helloJob");
+		assertThat(content).containsEntry("name", "helloJob").containsEntry("group", "samples");
+	}
+
+	@Test
+	void quartzJobDetailWhenNameDoesNotExistReturns404() {
+		ResponseEntity<String> response = this.restTemplate.getForEntity("/actuator/quartz/jobs/samples/does-not-exist",
+				String.class);
+		assertThat(response.getStatusCode()).isEqualTo(HttpStatus.NOT_FOUND);
+	}
+
+	@Test
+	void quartzTriggerDetail() {
+		Map<String, Object> content = getContent("/actuator/quartz/triggers/samples/3am-weekdays");
+		assertThat(content).contains(entry("group", "samples"), entry("name", "3am-weekdays"), entry("state", "NORMAL"),
+				entry("type", "cron"));
+	}
+
+	@Test
+	void quartzTriggerDetailWhenNameDoesNotExistReturns404() {
+		ResponseEntity<String> response = this.restTemplate
+				.getForEntity("/actuator/quartz/triggers/samples/does-not-exist", String.class);
+		assertThat(response.getStatusCode()).isEqualTo(HttpStatus.NOT_FOUND);
+	}
+
+	private Map<String, Object> getContent(String path) {
+		ResponseEntity<Map<String, Object>> entity = asMapEntity(this.restTemplate.getForEntity(path, Map.class));
+		assertThat(entity.getStatusCode()).isEqualTo(HttpStatus.OK);
+		return entity.getBody();
+	}
+
+	@SuppressWarnings({ "unchecked", "rawtypes" })
+	private static <K, V> ResponseEntity<Map<K, V>> asMapEntity(ResponseEntity<Map> entity) {
+		return (ResponseEntity) entity;
+	}
+
+	@SuppressWarnings("rawtypes")
+	private static InstanceOfAssertFactory<Map, MapAssert<String, Object>> nestedMap() {
+		return InstanceOfAssertFactories.map(String.class, Object.class);
+	}
+
+}