io.spring.initializr.metadata.DependenciesCapability.java Source code

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Here is the source code for io.spring.initializr.metadata.DependenciesCapability.java

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/*
 * Copyright 2012-2017 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
 *
 *      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 io.spring.initializr.metadata;

import java.util.ArrayList;
import java.util.Collection;
import java.util.Collections;
import java.util.LinkedHashMap;
import java.util.List;
import java.util.Map;

import com.fasterxml.jackson.annotation.JsonIgnore;
import io.spring.initializr.util.VersionParser;

/**
 * A {@link ServiceCapability} listing the available dependencies defined as a
 * {@link ServiceCapabilityType#HIERARCHICAL_MULTI_SELECT} capability.
 *
 * @author Stephane Nicoll
 */
public class DependenciesCapability extends ServiceCapability<List<DependencyGroup>> {

    final List<DependencyGroup> content = new ArrayList<>();

    @JsonIgnore
    private final Map<String, Dependency> indexedDependencies = new LinkedHashMap<>();

    public DependenciesCapability() {
        super("dependencies", ServiceCapabilityType.HIERARCHICAL_MULTI_SELECT, "Project dependencies",
                "dependency identifiers (comma-separated)");
    }

    @Override
    public List<DependencyGroup> getContent() {
        return content;
    }

    /**
     * Return the {@link Dependency} with the specified id or {@code null} if no such
     * dependency exists.
     */
    public Dependency get(String id) {
        return indexedDependencies.get(id);
    }

    /**
     * Return all dependencies as a flat collection
     */
    public Collection<Dependency> getAll() {
        return Collections.unmodifiableCollection(indexedDependencies.values());
    }

    public void validate() {
        index();
    }

    public void updateVersionRange(VersionParser versionParser) {
        indexedDependencies.values().forEach(it -> it.updateVersionRanges(versionParser));
    }

    @Override
    public void merge(List<DependencyGroup> otherContent) {
        otherContent.forEach(group -> {
            if (content.stream().noneMatch(it -> group.getName() != null && group.getName().equals(it.getName()))) {
                content.add(group);
            }
        });
        index();
    }

    private void index() {
        indexedDependencies.clear();
        content.forEach(group -> group.content.forEach(dependency -> {
            // Apply defaults
            if (dependency.getVersionRange() == null && group.getVersionRange() != null) {
                dependency.setVersionRange(group.getVersionRange());
            }
            if (dependency.getBom() == null && group.getBom() != null) {
                dependency.setBom(group.getBom());
            }
            if (dependency.getRepository() == null && group.getRepository() != null) {
                dependency.setRepository(group.getRepository());
            }

            dependency.resolve();
            indexDependency(dependency.getId(), dependency);
            for (String alias : dependency.getAliases()) {
                indexDependency(alias, dependency);
            }
        }));
    }

    private void indexDependency(String id, Dependency dependency) {
        Dependency existing = indexedDependencies.get(id);
        if (existing != null) {
            throw new IllegalArgumentException("Could not register " + dependency + " another dependency "
                    + "has also the '" + id + "' id " + existing);
        }
        indexedDependencies.put(id, dependency);
    }

}