forked from elastic/elasticsearch
/
TestClustersPlugin.java
110 lines (99 loc) · 4.49 KB
/
TestClustersPlugin.java
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/*
* Licensed to Elasticsearch under one or more contributor
* license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright
* ownership. Elasticsearch licenses this file to you 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
*
* 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.elasticsearch.gradle.testclusters;
import groovy.lang.Closure;
import org.elasticsearch.GradleServicesAdapter;
import org.gradle.api.NamedDomainObjectContainer;
import org.gradle.api.Plugin;
import org.gradle.api.Project;
import org.gradle.api.Task;
import org.gradle.api.execution.TaskActionListener;
import org.gradle.api.execution.TaskExecutionListener;
import org.gradle.api.logging.Logger;
import org.gradle.api.logging.Logging;
import org.gradle.api.plugins.ExtraPropertiesExtension;
import org.gradle.api.tasks.TaskState;
import java.util.ArrayList;
import java.util.Collections;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
public class TestClustersPlugin implements Plugin<Project> {
private static final String LIST_TASK_NAME = "listTestClusters";
private static final String NODE_EXTENSION_NAME = "testClusters";
private final Logger logger = Logging.getLogger(TestClustersPlugin.class);
@Override
public void apply(Project project) {
NamedDomainObjectContainer<? extends ElasticsearchNode> container = project.container(
ElasticsearchNode.class,
(name) -> new ElasticsearchNode(name, GradleServicesAdapter.getInstance(project))
);
project.getExtensions().add(NODE_EXTENSION_NAME, container);
Task listTask = project.getTasks().create(LIST_TASK_NAME);
listTask.setGroup("ES cluster formation");
listTask.setDescription("Lists all ES clusters configured for this project");
listTask.doLast((Task task) ->
container.forEach((ElasticsearchNode cluster) ->
logger.lifecycle(" * {}: {}", cluster.getName(), cluster.getDistribution())
)
);
Map<Task, List<ElasticsearchNode>> taskToCluster = new HashMap<>();
// register an extension for all current and future tasks, so that any task can declare that it wants to use a
// specific cluster.
project.getTasks().all((Task task) ->
task.getExtensions().findByType(ExtraPropertiesExtension.class)
.set(
"useCluster",
new Closure<Void>(this, this) {
public void doCall(ElasticsearchNode conf) {
taskToCluster.computeIfAbsent(task, k -> new ArrayList<>()).add(conf);
}
})
);
project.getGradle().getTaskGraph().whenReady(taskExecutionGraph ->
taskExecutionGraph.getAllTasks()
.forEach(task ->
taskToCluster.getOrDefault(task, Collections.emptyList()).forEach(ElasticsearchNode::claim)
)
);
project.getGradle().addListener(
new TaskActionListener() {
@Override
public void beforeActions(Task task) {
// we only start the cluster before the actions, so we'll not start it if the task is up-to-date
taskToCluster.getOrDefault(task, new ArrayList<>()).forEach(ElasticsearchNode::start);
}
@Override
public void afterActions(Task task) {}
}
);
project.getGradle().addListener(
new TaskExecutionListener() {
@Override
public void afterExecute(Task task, TaskState state) {
// always un-claim the cluster, even if _this_ task is up-to-date, as others might not have been and caused the
// cluster to start.
taskToCluster.getOrDefault(task, new ArrayList<>()).forEach(ElasticsearchNode::unClaimAndStop);
}
@Override
public void beforeExecute(Task task) {}
}
);
}
}