io.spring.gradle.dependencymanagement.internal.maven.EffectiveModelBuilder Maven / Gradle / Ivy
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A Gradle plugin that provides Maven-like dependency management functionality
/*
* Copyright 2014-2022 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 io.spring.gradle.dependencymanagement.internal.maven;
import java.io.File;
import java.util.ArrayList;
import java.util.List;
import java.util.Map;
import java.util.concurrent.ConcurrentHashMap;
import io.spring.gradle.dependencymanagement.internal.DependencyManagementConfigurationContainer;
import io.spring.gradle.dependencymanagement.internal.properties.PropertySource;
import io.spring.gradle.dependencymanagement.org.apache.maven.model.Model;
import io.spring.gradle.dependencymanagement.org.apache.maven.model.building.DefaultModelBuilder;
import io.spring.gradle.dependencymanagement.org.apache.maven.model.building.DefaultModelBuilderFactory;
import io.spring.gradle.dependencymanagement.org.apache.maven.model.building.DefaultModelBuildingRequest;
import io.spring.gradle.dependencymanagement.org.apache.maven.model.building.FileModelSource;
import io.spring.gradle.dependencymanagement.org.apache.maven.model.building.ModelBuildingException;
import io.spring.gradle.dependencymanagement.org.apache.maven.model.building.ModelBuildingResult;
import io.spring.gradle.dependencymanagement.org.apache.maven.model.building.ModelCache;
import io.spring.gradle.dependencymanagement.org.apache.maven.model.building.ModelProblem;
import io.spring.gradle.dependencymanagement.org.apache.maven.model.resolution.ModelResolver;
import org.gradle.api.Project;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
/**
* Builds the effective {@link Model} for a Maven pom.
*
* @author Andy Wilkinson
*/
final class EffectiveModelBuilder {
private static final Logger logger = LoggerFactory.getLogger(EffectiveModelBuilder.class);
private final ModelResolver modelResolver;
EffectiveModelBuilder(Project project, DependencyManagementConfigurationContainer configurationContainer,
PlatformCategoryAttributeConfigurer attributeConfigurer) {
this.modelResolver = new ConfigurationModelResolver(project, configurationContainer, attributeConfigurer);
}
List buildModels(List inputs) {
List models = new ArrayList();
InMemoryModelCache cache = new InMemoryModelCache();
for (ModelInput input : inputs) {
models.add(buildModel(input, cache));
}
return models;
}
private Model buildModel(ModelInput input, InMemoryModelCache cache) {
DefaultModelBuildingRequest request = new DefaultModelBuildingRequest();
request.setSystemProperties(System.getProperties());
request.setModelSource(new FileModelSource(input.pom));
request.setModelResolver(this.modelResolver);
request.setModelCache(cache);
try {
ModelBuildingResult result = createModelBuilder(input.properties).build(request);
List errors = extractErrors(result.getProblems());
if (!errors.isEmpty()) {
reportErrors(errors, input.pom);
}
return result.getEffectiveModel();
}
catch (ModelBuildingException ex) {
logger.debug("Model building failed", ex);
reportErrors(extractErrors(ex.getProblems()), input.pom);
return ex.getResult().getEffectiveModel();
}
}
private List extractErrors(List problems) {
List errors = new ArrayList();
for (ModelProblem problem : problems) {
if (problem.getSeverity() == ModelProblem.Severity.ERROR) {
errors.add(problem);
}
}
return errors;
}
private void reportErrors(List errors, File file) {
StringBuilder message = new StringBuilder("Errors occurred while build effective model from " + file + ":");
for (ModelProblem error : errors) {
message.append("\n " + error.getMessage() + " in " + error.getModelId());
}
logger.error(message.toString());
}
private DefaultModelBuilder createModelBuilder(PropertySource properties) {
DefaultModelBuilder modelBuilder = new DefaultModelBuilderFactory().newInstance();
modelBuilder.setModelInterpolator(new PropertiesModelInterpolator(properties));
modelBuilder.setModelValidator(new RelaxedModelValidator());
return modelBuilder;
}
/**
* Input to a model building request.
*/
static class ModelInput {
private final File pom;
private final PropertySource properties;
ModelInput(File pom, PropertySource properties) {
this.pom = pom;
this.properties = properties;
}
}
private static final class InMemoryModelCache implements ModelCache {
private final Map cache = new ConcurrentHashMap();
@Override
public Object get(String groupId, String artifactId, String version, String tag) {
return this.cache.get(new Key(groupId, artifactId, version, tag));
}
@Override
public void put(String groupId, String artifactId, String version, String tag, Object item) {
this.cache.put(new Key(groupId, artifactId, version, tag), item);
}
private static final class Key {
private final String groupId;
private final String artifactId;
private final String version;
private final String tag;
private Key(String groupId, String artifactId, String version, String tag) {
this.groupId = groupId;
this.artifactId = artifactId;
this.version = version;
this.tag = tag;
}
@Override
public boolean equals(Object obj) {
if (this == obj) {
return true;
}
if ((obj == null) || (getClass() != obj.getClass())) {
return false;
}
Key other = (Key) obj;
if (!this.groupId.equals(other.groupId)) {
return false;
}
if (!this.artifactId.equals(other.artifactId)) {
return false;
}
if (!this.version.equals(other.version)) {
return false;
}
if (!this.tag.equals(other.tag)) {
return false;
}
return true;
}
@Override
public int hashCode() {
final int prime = 31;
int result = 1;
result = prime * result + this.groupId.hashCode();
result = prime * result + this.artifactId.hashCode();
result = prime * result + this.version.hashCode();
result = prime * result + this.tag.hashCode();
return result;
}
}
}
}
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