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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.Collection;
import java.util.Comparator;
import java.util.List;
import java.util.Optional;
import java.util.stream.Stream;
/**
* A list of applications which can be filtered in various ways.
*
* @author bratseth
*/
// TODO jvenstad: Make an AbstractFilteringList based on JobList and let this extend it for free not()s?
public class ApplicationList {
private final ImmutableList<Application> list;
private ApplicationList(Iterable<Application> applications) {
this.list = ImmutableList.copyOf(applications);
}
// ----------------------------------- Factories
public static ApplicationList from(Iterable<Application> applications) {
return new ApplicationList(applications);
}
public static ApplicationList from(Collection<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; }
/** Returns the ids of the applications in this as an immutable list */
public List<ApplicationId> idList() { return ImmutableList.copyOf(list.stream().map(Application::id)::iterator); }
public boolean isEmpty() { return list.isEmpty(); }
public int size() { return list.size(); }
// ----------------------------------- Filters
/** Returns the subset of applications which are upgrading (to any version), not considering block windows. */
public ApplicationList upgrading() {
return listOf(list.stream().filter(application -> application.change().platform().isPresent()));
}
/** Returns the subset of applications which are 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 are not pinned to a certain Vespa version. */
public ApplicationList notPinned() {
return listOf(list.stream().filter(application -> ! application.change().isPinned()));
}
/** Returns the subset of applications which are 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 are currently not upgrading to the given version,
* or returns all if no version is specified
*/
public ApplicationList notUpgradingTo(Optional<Version> version) {
if ( ! version.isPresent()) return this;
return notUpgradingTo(version.get());
}
/** Returns the subset of applications which have changes left to deploy; blocked, or deploying */
public ApplicationList withChanges() {
return listOf(list.stream().filter(application -> application.change().isPresent() || application.outstandingChange().isPresent()));
}
/** Returns the subset of applications which are currently not deploying a change */
public ApplicationList notDeploying() {
return listOf(list.stream().filter(application -> ! application.change().isPresent()));
}
/** 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 have failing jobs */
public ApplicationList failing() {
return listOf(list.stream().filter(application -> application.deploymentJobs().hasFailures()));
}
/** Returns the subset of applications which have been failing an upgrade to the given version since the given instant */
public ApplicationList failingUpgradeToVersionSince(Version version, Instant threshold) {
return listOf(list.stream().filter(application -> failingUpgradeToVersionSince(application, version, threshold)));
}
/** Returns the subset of applications which have been failing an application change since the given instant */
public ApplicationList failingApplicationChangeSince(Instant threshold) {
return listOf(list.stream().filter(application -> failingApplicationChangeSince(application, threshold)));
}
/** 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 production deployment */
public ApplicationList hasDeployment() {
return listOf(list.stream().filter(a -> !a.productionDeployments().isEmpty()));
}
/** Returns the subset of applications which started failing on the given version */
public ApplicationList startedFailingOn(Version version) {
return listOf(list.stream().filter(application -> ! JobList.from(application).firstFailing().on(version).isEmpty()));
}
/** 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.productionDeployments().values().stream()
.anyMatch(d -> d.version().isBefore(version))));
}
/** Returns the subset of applications which have a project ID */
public ApplicationList withProjectId() {
return listOf(list.stream().filter(a -> a.deploymentJobs().projectId().isPresent()));
}
/** Returns the subset of applications which have at least one production deployment */
public ApplicationList hasProductionDeployment() {
return listOf(list.stream().filter(a -> ! a.productionDeployments().isEmpty()));
}
/** 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)));
}
/**
* Returns the subset of applications that hasn't pinned to an an earlier major version than the given one.
*
* @param targetMajorVersion the target major version which applications returned allows upgrading to
* @param defaultMajorVersion the default major version to assume for applications not specifying one
*/
public ApplicationList allowMajorVersion(int targetMajorVersion, int defaultMajorVersion) {
return listOf(list.stream().filter(a -> a.deploymentSpec().majorVersion().orElse(a.majorVersion().orElse(defaultMajorVersion))
>= targetMajorVersion));
}
/** Returns the first n application in this (or all, if there are less than n). */
public ApplicationList first(int n) {
if (list.size() < n) return this;
return new ApplicationList(list.subList(0, n));
}
// ----------------------------------- 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.oldestDeployedPlatform().orElse(Version.emptyVersion))));
}
// ----------------------------------- Internal helpers
private static boolean isUpgradingTo(Version version, Application application) {
return application.change().platform().equals(Optional.of(version));
}
private static boolean failingOn(Version version, Application application) {
return ! JobList.from(application)
.failing()
.lastCompleted().on(version)
.isEmpty();
}
private static boolean failingUpgradeToVersionSince(Application application, Version version, Instant threshold) {
return ! JobList.from(application)
.not().failingApplicationChange()
.firstFailing().before(threshold)
.lastCompleted().on(version)
.isEmpty();
}
private static boolean failingApplicationChangeSince(Application application, Instant threshold) {
return ! JobList.from(application)
.failingApplicationChange()
.firstFailing().before(threshold)
.isEmpty();
}
/** Convenience converter from a stream to an ApplicationList */
private static ApplicationList listOf(Stream<Application> applications) {
return from(applications::iterator);
}
}
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