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// Copyright 2017 Yahoo Holdings. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
package com.yahoo.vespa.hosted.controller.application;
import com.google.common.collect.ImmutableList;
import com.yahoo.component.Version;
import com.yahoo.config.application.api.DeploymentSpec.UpgradePolicy;
import com.yahoo.config.provision.ApplicationId;
import com.yahoo.vespa.hosted.controller.Application;
import com.yahoo.vespa.hosted.controller.ApplicationController;
import java.time.Instant;
import java.util.Comparator;
import java.util.List;
import java.util.stream.Stream;
/**
* A list of applications which can be filtered in various ways.
*
* @author bratseth
*/
public class ApplicationList {
private final ImmutableList<Application> list;
private ApplicationList(List<Application> applications) {
this.list = ImmutableList.copyOf(applications);
}
// ----------------------------------- Factories
public static ApplicationList from(List<Application> applications) {
return new ApplicationList(applications);
}
public static ApplicationList from(List<ApplicationId> ids, ApplicationController applications) {
return listOf(ids.stream().map(applications::require));
}
// ----------------------------------- Accessors
/** Returns the applications in this as an immutable list */
public List<Application> asList() { return list; }
public boolean isEmpty() { return list.isEmpty(); }
public int size() { return list.size(); }
// ----------------------------------- Filters
/** Returns the subset of applications which is currently upgrading to the given version */
public ApplicationList upgradingTo(Version version) {
return listOf(list.stream().filter(application -> isUpgradingTo(version, application)));
}
/** Returns the subset of applications which is currently upgrading to a version lower than the given version */
public ApplicationList upgradingToLowerThan(Version version) {
return listOf(list.stream().filter(application -> isUpgradingToLowerThan(version, application)));
}
/** Returns the subset of applications which is currently not upgrading to the given version */
public ApplicationList notUpgradingTo(Version version) {
return listOf(list.stream().filter(application -> ! isUpgradingTo(version, application)));
}
/** Returns the subset of applications which is currently not deploying a new application revision */
public ApplicationList notDeployingApplication() {
return listOf(list.stream().filter(application -> ! isDeployingApplicationChange(application)));
}
/** Returns the subset of applications which currently does not have any failing jobs */
public ApplicationList notFailing() {
return listOf(list.stream().filter(application -> ! application.deploymentJobs().hasFailures()));
}
/** Returns the subset of applications which currently does not have any failing jobs on the given version */
public ApplicationList notFailingOn(Version version) {
return listOf(list.stream().filter(application -> ! failingOn(version, application)));
}
/** Returns the subset of applications which have at least one deployment */
public ApplicationList hasDeployment() {
return listOf(list.stream().filter(a -> !a.deployments().isEmpty()));
}
/** Returns the subset of applications which started failing after the given instant */
public ApplicationList startedFailingAfter(Instant instant) {
return listOf(list.stream().filter(application -> application.deploymentJobs().failingSince().isAfter(instant)));
}
/** Returns the subset of applications which has the given upgrade policy */
public ApplicationList with(UpgradePolicy policy) {
return listOf(list.stream().filter(a -> a.deploymentSpec().upgradePolicy() == policy));
}
/** Returns the subset of applications which does not have the given upgrade policy */
public ApplicationList without(UpgradePolicy policy) {
return listOf(list.stream().filter(a -> a.deploymentSpec().upgradePolicy() != policy));
}
/** Returns the subset of applications which have at least one deployment on a lower version than the given one */
public ApplicationList onLowerVersionThan(Version version) {
return listOf(list.stream()
.filter(a -> a.deployments().values().stream().anyMatch(d -> d.version().isBefore(version))));
}
/**
* Returns the subset of applications which are not pull requests:
* Pull requests changes the application instance name to default-pr[pull-request-number]
*/
public ApplicationList notPullRequest() {
return listOf(list.stream().filter(a -> ! a.id().instance().value().startsWith("default-pr")));
}
/** Returns the subset of applications that are allowed to upgrade at the given time */
public ApplicationList canUpgradeAt(Instant instant) {
return listOf(list.stream().filter(a -> a.deploymentSpec().canUpgradeAt(instant)));
}
// ----------------------------------- Sorting
/**
* Returns this list sorted by increasing deployed version.
* If multiple versions are deployed the oldest is used.
* Applications without any deployments are ordered first.
*/
public ApplicationList byIncreasingDeployedVersion() {
return listOf(list.stream().sorted(Comparator.comparing(application -> application.deployedVersion().orElse(Version.emptyVersion))));
}
/** Returns the subset of applications which currently do not have any job in progress for the given change */
public ApplicationList notRunningJobFor(Change.VersionChange change) {
return listOf(list.stream().filter(a -> !hasRunningJob(a, change)));
}
// ----------------------------------- Internal helpers
private static boolean isUpgradingTo(Version version, Application application) {
if ( ! (application.deploying().isPresent()) ) return false;
if ( ! (application.deploying().get() instanceof Change.VersionChange) ) return false;
return ((Change.VersionChange)application.deploying().get()).version().equals(version);
}
private static boolean isUpgradingToLowerThan(Version version, Application application) {
if ( ! application.deploying().isPresent()) return false;
if ( ! (application.deploying().get() instanceof Change.VersionChange) ) return false;
return ((Change.VersionChange)application.deploying().get()).version().isBefore(version);
}
private static boolean isDeployingApplicationChange(Application application) {
if ( ! application.deploying().isPresent()) return false;
return application.deploying().get() instanceof Change.ApplicationChange;
}
private static boolean failingOn(Version version, Application application) {
for (JobStatus jobStatus : application.deploymentJobs().jobStatus().values())
if ( ! jobStatus.isSuccess() && jobStatus.lastCompleted().get().version().equals(version)) return true;
return false;
}
private static boolean hasRunningJob(Application application, Change.VersionChange change) {
return application.deploymentJobs().jobStatus().values().stream()
.filter(JobStatus::inProgress)
.filter(jobStatus -> jobStatus.lastTriggered().isPresent())
.map(jobStatus -> jobStatus.lastTriggered().get())
.anyMatch(jobRun -> jobRun.version().equals(change.version()));
}
/** Convenience converter from a stream to an ApplicationList */
private static ApplicationList listOf(Stream<Application> applications) {
ImmutableList.Builder<Application> b = new ImmutableList.Builder<>();
applications.forEach(b::add);
return new ApplicationList(b.build());
}
}
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