/*
* Copyright (C) 2014 The Android Open Source Project
*
* 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
*
* 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 com.android.build.gradle.integration.common.fixture;
import com.android.builder.model.AndroidProject;
import com.google.common.collect.Lists;
import com.google.common.collect.Maps;
import org.gradle.tooling.BuildAction;
import org.gradle.tooling.BuildController;
import org.gradle.tooling.model.DomainObjectSet;
import org.gradle.tooling.model.gradle.BasicGradleProject;
import org.gradle.tooling.model.gradle.GradleBuild;
import java.util.List;
import java.util.Map;
/**
* a Build Action that returns all the models for all the Gradle projects
*/
public class GetAndroidModelAction implements BuildAction<Map<String, AndroidProject>> {
private static final int CPU_COUNT = Runtime.getRuntime().availableProcessors();
@Override
public Map<String, AndroidProject> execute(BuildController buildController) {
long t1 = System.currentTimeMillis();
GradleBuild gradleBuild = buildController.getBuildModel();
DomainObjectSet<? extends BasicGradleProject> projects = gradleBuild.getProjects();
final int projectCount = projects.size();
Map<String, AndroidProject> modelMap = Maps.newHashMapWithExpectedSize(projectCount);
List<BasicGradleProject> projectList = Lists.newArrayList(projects);
List<Thread> threads = Lists.newArrayListWithCapacity(CPU_COUNT);
List<ModelQuery> queries = Lists.newArrayListWithCapacity(CPU_COUNT);
for (int i = 0 ; i < CPU_COUNT ; i++) {
ModelQuery modelQuery = new ModelQuery(
projectList,
buildController);
queries.add(modelQuery);
Thread t = new Thread(modelQuery);
threads.add(t);
t.start();
}
for (int i = 0 ; i < CPU_COUNT ; i++) {
try {
threads.get(i).join();
ModelQuery modelQuery = queries.get(i);
modelMap.putAll(modelQuery.getModels());
} catch (InterruptedException e) {
Thread.currentThread().interrupt();
}
}
long t2 = System.currentTimeMillis();
System.out.println("GetAndroidModelAction: " + (t2-t1) + "ms");
return modelMap;
}
// index used by threads to get the new project to query.
private volatile int currentIndex = 0;
protected synchronized int getNextIndex() {
return currentIndex++;
}
class ModelQuery implements Runnable {
private final Map<String, AndroidProject> models;
private final List<BasicGradleProject> projects;
private final BuildController buildController;
public ModelQuery(
List<BasicGradleProject> projects,
BuildController buildController) {
this.projects = projects;
this.buildController = buildController;
models = Maps.newHashMapWithExpectedSize(projects.size() / CPU_COUNT);
}
public Map<String, AndroidProject> getModels() {
return models;
}
@Override
public void run() {
final int count = projects.size();
int index;
while ((index = getNextIndex()) < count) {
BasicGradleProject project = projects.get(index);
AndroidProject model = buildController.findModel(project, AndroidProject.class);
if (model != null) {
models.put(project.getPath(), model);
}
}
}
}
}