| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF 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.netbeans.modules.project.dependency; |
| |
| import java.util.ArrayList; |
| import java.util.Arrays; |
| import java.util.Collection; |
| import java.util.Collections; |
| import java.util.HashSet; |
| import java.util.LinkedHashSet; |
| import java.util.List; |
| import java.util.Set; |
| import java.util.SortedMap; |
| import java.util.TreeMap; |
| import java.util.stream.Collectors; |
| import javax.swing.event.ChangeEvent; |
| import javax.swing.event.ChangeListener; |
| import org.netbeans.api.annotations.common.CheckForNull; |
| import org.netbeans.api.annotations.common.NonNull; |
| import org.netbeans.api.annotations.common.NullAllowed; |
| import org.netbeans.api.project.Project; |
| import org.netbeans.api.project.ProjectActionContext; |
| import org.netbeans.modules.project.dependency.spi.ProjectArtifactsImplementation; |
| import org.openide.util.*; |
| |
| /** |
| * This project query provides access to artifacts produced or managed by a project. An artifact |
| * is essentially a file (may extend to a collection of files in the future) that is a product of a project build, |
| * or generally of a project or build system action. A project can have multiple artifacts produced by a build, |
| * or can have multiple sets of artifacts produced by specific project actions. |
| * <p> |
| * By default the query will return artifacts produced by project's compilation (incl. packaging, in maven terminology) - |
| * but the exact meaning depends on a build system used, and the project's settings and the active configuration. |
| * <p> |
| * Different project output are marked by different <b>classifiers</b>. Some special, abstract classifiers may |
| * be defined that should be handled by implementations specific for each build system. |
| * <ul> |
| * <li>{@link Filter#CLASSIFIER_BUNDLED} - describes a product with all dependencies included, such as the output of |
| * <b>shade or shadow plugins</b> in Gradle or Maven. Since the plugins behave differently (maven replaces the original artifact, |
| * while gradle attaches a new one), this meta-classiifer allows to pick the appropriate artifact despite its real classifier depends |
| * on project type. If there are more bundles (shadows), |
| * </ul> |
| * @author sdedic |
| */ |
| public final class ProjectArtifactsQuery { |
| |
| /** |
| * Computes artifacts produced by a project. The returned Result can enumerate artifacts |
| * from the project, along with their location(s) either actual or supposed. The Result can |
| * be listened of changes that may change the artifacts reported. |
| * |
| * @param project the project to be queried |
| * @param filter artifact filter |
| * @return list of artifacts that can be listened on. |
| */ |
| public static ArtifactsResult findArtifacts(Project project, Filter filter) { |
| Parameters.notNull("project", project); |
| Parameters.notNull("filter", filter); |
| |
| List<ProjectArtifactsImplementation> impls = new ArrayList<>(project.getLookup().lookupAll(ProjectArtifactsImplementation.class)); |
| SortedMap<Integer, List<E<?>>> buckets = new TreeMap<>(); |
| for (ProjectArtifactsImplementation impl : impls) { |
| Object r = impl.evaluate(filter); |
| if (r != null) { |
| buckets.computeIfAbsent(impl.getOrder(), i -> new ArrayList<>()).add(new E(r, impl)); |
| } |
| } |
| List<E<?>> delegates; |
| if (buckets.size() == 1) { |
| delegates = buckets.values().iterator().next(); |
| } else { |
| delegates = buckets.values().stream().flatMap(l -> l.stream()).collect(Collectors.toList()); |
| } |
| return new ArtifactsResult(delegates); |
| } |
| |
| private static final class E<T> { |
| final T data; |
| final ProjectArtifactsImplementation<T> impl; |
| |
| public E(T data, ProjectArtifactsImplementation<T> impl) { |
| this.data = data; |
| this.impl = impl; |
| } |
| |
| public Project findProject() { |
| return impl.findProject(data); |
| } |
| |
| public List<ArtifactSpec> findArtifacts() { |
| return impl.findArtifacts(data); |
| } |
| |
| public Collection<ArtifactSpec> findExcludedArtifacts() { |
| return impl.findExcludedArtifacts(data); |
| } |
| |
| public void handleChangeListener(ChangeListener l, boolean add) { |
| impl.handleChangeListener(data, l, add); |
| } |
| |
| public boolean computeSupportsChanges() { |
| return impl.computeSupportsChanges(data); |
| } |
| } |
| |
| public static final class ArtifactsResult { |
| private final List<E<?>> delegates; |
| |
| // @GuardedBy(this) |
| private final List<ChangeListener> listeners = new ArrayList<>(); |
| // @GuardedBy(this) |
| private ChangeListener delListener; |
| // @GuardedBy(this) |
| private List<ArtifactSpec> artifacts; |
| // @GuardedBy(this) |
| private Boolean supportsChanges; |
| |
| ArtifactsResult(List<E<?>> delegates) { |
| this.delegates = delegates; |
| } |
| |
| /** |
| * Returns project artifacts. The result may become invalida after the result fires |
| * an event to its {@link #addChangeListener(javax.swing.event.ChangeListener) ChangeListeners}. |
| * @return artifacts produced by the project. |
| */ |
| public List<ArtifactSpec> getArtifacts() { |
| synchronized (this) { |
| if (artifacts != null) { |
| return artifacts; |
| } |
| } |
| return updateResults(); |
| } |
| |
| List<ArtifactSpec> updateResults() { |
| boolean changes = false; |
| // accept only first matching artifact. |
| Collection<ArtifactSpec> specs = new LinkedHashSet<>(); |
| for (E<?> e : delegates) { |
| Collection<ArtifactSpec> ex = e.findExcludedArtifacts(); |
| if (ex != null) { |
| specs.removeAll(ex); |
| } |
| Collection<ArtifactSpec> add = e.findArtifacts(); |
| if (add != null) { |
| specs.addAll(add); |
| } |
| changes |= e.computeSupportsChanges(); |
| } |
| List<ArtifactSpec> copy = new ArrayList<>(specs); |
| ChangeListener[] ll; |
| |
| synchronized (this) { |
| if (null == supportsChanges) { |
| this.supportsChanges = changes; |
| } |
| if (this.artifacts != null && this.artifacts.equals(specs)) { |
| return copy; |
| } |
| this.artifacts = copy; |
| if (listeners.isEmpty()) { |
| return copy; |
| } |
| ll = listeners.toArray(new ChangeListener[listeners.size()]); |
| } |
| ChangeEvent e = new ChangeEvent(this); |
| |
| for (ChangeListener l : ll) { |
| l.stateChanged(e); |
| } |
| return copy; |
| } |
| |
| /** |
| * Adds a listener that will be informed of changes. An event will fire if |
| * the project changes in a way that might affect the reported artifacts. |
| * |
| * @param l the listener |
| */ |
| public void addChangeListener(ChangeListener l) { |
| synchronized (this) { |
| if (Boolean.FALSE.equals(supportsChanges)) { |
| return; |
| } |
| if (delListener == null) { |
| delListener = WeakListeners.change((e) -> updateResults(), null); |
| for (E d : delegates) { |
| d.handleChangeListener(delListener, true); |
| } |
| } |
| listeners.add(l); |
| } |
| } |
| |
| /** |
| * Removes a previously registered Listener. |
| * @param l the listener to unregister |
| */ |
| public void removeChangeListener(ChangeListener l) { |
| synchronized (this) { |
| listeners.remove(l); |
| } |
| } |
| } |
| |
| /** |
| * Specifies the artifact filter. By default, the default artifact type is returned, |
| * perhaps determined by the configured packaging with <b>no classifier</b>. It it possible |
| * to list artifacts of all types and/or artifacts with any classifier in one query. |
| */ |
| public static final class Filter { |
| /** |
| * Represents all types of artifacts. The query will return all build products |
| */ |
| public static final String TYPE_ALL = "<all>"; // NOI18N |
| |
| /** |
| * Will return artifacts with any classifier. |
| */ |
| public static final String CLASSIFIER_ANY = "<any>"; // NOI18N |
| |
| private final Set<String> tags; |
| private final String classifier; |
| private final String artifactType; |
| private final ProjectActionContext buildContext; |
| |
| Filter(String artifactType, String classifier, Set<String> tags, ProjectActionContext buildContext) { |
| this.classifier = classifier; |
| this.artifactType = artifactType; |
| this.buildContext = buildContext; |
| this.tags = tags == null ? Collections.emptySet() : Collections.unmodifiableSet(tags); |
| } |
| |
| /** |
| * The desired artifact classifier. Only artifact with the specific classifier will be returned. The value |
| * {@link #CLASSIFIER_ANY} means that any classifier will match. {@code null} (the default) value means |
| * the default (none) classifier will match. |
| * |
| * @return artifact classifier |
| */ |
| @CheckForNull |
| public String getClassifier() { |
| return classifier; |
| } |
| |
| public Set<String> getTags() { |
| return tags; |
| } |
| |
| public boolean hasTag(String t) { |
| return tags.contains(t); |
| } |
| |
| /** |
| * The desired artifact type. Only artifacts with tha type will be returned. {@link #TYPE_ALL} means that artifacts |
| * of all types will be returned. {@code null} (the default) means the default type, i.e. defined by project packaging. |
| * @return artifact type |
| */ |
| @CheckForNull |
| public String getArtifactType() { |
| return artifactType; |
| } |
| |
| /** |
| * The {@link ProjectActionContext} that shall be used during evaluation. |
| * @return context instance of {@code null} if none specified. |
| */ |
| @CheckForNull |
| public ProjectActionContext getBuildContext() { |
| return buildContext; |
| } |
| } |
| |
| /** |
| * Creates a new simple Filter that returns artifacts of the specified type and |
| * no classifier. |
| * @param artifactType the desired type |
| * @return Filter instance. |
| */ |
| @NonNull |
| public static Filter newQuery(@NullAllowed String artifactType) { |
| return new Filter(artifactType, null, null, null); |
| } |
| |
| /** |
| * Creates a Filter with the specified properties |
| * @param artifactType the desired type; use {@code null} for the default artifact type (i.e. defined by packaging) |
| * @param classifier the desired classifier; use {@code null} for no classifier |
| * @param buildContext the action context |
| * @return Filter instance. |
| */ |
| @NonNull |
| public static Filter newQuery(@NullAllowed String artifactType, @NullAllowed String classifier, @NullAllowed ProjectActionContext buildContext) { |
| return new Filter(artifactType, classifier, null, buildContext); |
| } |
| |
| /** |
| * Creates a Filter with the specified properties |
| * @param artifactType the desired type; use {@code null} for the default artifact type (i.e. defined by packaging) |
| * @param classifier the desired classifier; use {@code null} for no classifier |
| * @param buildContext the action context |
| * @return Filter instance. |
| */ |
| @NonNull |
| public static Filter newQuery(@NullAllowed String artifactType, @NullAllowed String classifier, @NullAllowed ProjectActionContext buildContext, String... tags) { |
| return new Filter(artifactType, classifier, |
| tags == null || tags.length == 0 ? null : new HashSet<>(Arrays.asList(tags)), |
| buildContext); |
| } |
| } |