SLC Repo building

[gpl/argeo-slc.git] / org.argeo.slc.support / src / org / argeo / slc / aether / AetherTemplate.java

diff --git a/org.argeo.slc.support/src/org/argeo/slc/aether/AetherTemplate.java b/org.argeo.slc.support/src/org/argeo/slc/aether/AetherTemplate.java
new file mode 100644 (file)
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+/*
+ * Copyright (C) 2007-2012 Argeo GmbH
+ *
+ * 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 org.argeo.slc.aether;
+
+import java.io.File;
+import java.util.List;
+
+import org.argeo.slc.SlcException;
+import org.eclipse.aether.RepositorySystem;
+import org.eclipse.aether.RepositorySystemSession;
+import org.eclipse.aether.artifact.Artifact;
+import org.eclipse.aether.collection.CollectRequest;
+import org.eclipse.aether.graph.Dependency;
+import org.eclipse.aether.graph.DependencyNode;
+import org.eclipse.aether.repository.RemoteRepository;
+import org.eclipse.aether.resolution.ArtifactRequest;
+import org.eclipse.aether.resolution.ArtifactResolutionException;
+import org.eclipse.aether.resolution.ArtifactResult;
+
+/** Simplifies access to Aether. */
+public class AetherTemplate {
+       private RepositorySystem repositorySystem;
+       private RepositorySystemSession repositorySystemSession;
+       private List<RemoteRepository> remoteRepositories;
+
+       /** Resolves the artifact in order to give access to its file. */
+       public File getResolvedFile(Artifact artifact) {
+               try {
+                       ArtifactRequest artifactRequest = new ArtifactRequest(artifact,
+                                       remoteRepositories, null);
+                       ArtifactResult result = repositorySystem.resolveArtifact(
+                                       repositorySystemSession, artifactRequest);
+                       return result.getArtifact().getFile();
+               } catch (ArtifactResolutionException e) {
+                       throw new SlcException("Cannot resolve " + artifact, e);
+               }
+       }
+
+       /**
+        * Transitively resolves the dependencies of this artifact (with scope
+        * 'compile')
+        * 
+        * @param artifact
+        *            the artifact to resolve
+        */
+       public DependencyNode resolveDependencies(Artifact artifact) {
+               return resolveDependencies(artifact, "compile");
+       }
+
+       /**
+        * Transitively resolves the dependencies of this artifact.
+        * 
+        * @param artifact
+        *            the artifact to resolve
+        * @param scope
+        *            the scope
+        */
+       public DependencyNode resolveDependencies(Artifact artifact, String scope) {
+               try {
+                       Dependency dependency = new Dependency(artifact, scope);
+                       CollectRequest collectRequest = new CollectRequest();
+                       collectRequest.setRoot(dependency);
+                       for (RemoteRepository remoteRepository : remoteRepositories)
+                               collectRequest.addRepository(remoteRepository);
+                       DependencyNode node = repositorySystem.collectDependencies(
+                                       repositorySystemSession, collectRequest).getRoot();
+
+                       // FIXME adapt to changes in Aether
+                       // repositorySystem.resolveDependencies(repositorySystemSession,
+                       // node,
+                       // null);
+                       return node;
+               } catch (Exception e) {
+                       throw new SlcException("Cannot resolve dependencies of " + artifact
+                                       + " (scope: " + scope + ")", e);
+               }
+       }
+
+       public RepositorySystem getRepositorySystem() {
+               return repositorySystem;
+       }
+
+       public void setRepositorySystem(RepositorySystem repositorySystem) {
+               this.repositorySystem = repositorySystem;
+       }
+
+       public RepositorySystemSession getRepositorySystemSession() {
+               return repositorySystemSession;
+       }
+
+       public void setRepositorySystemSession(
+                       RepositorySystemSession repositorySystemSession) {
+               this.repositorySystemSession = repositorySystemSession;
+       }
+
+       public List<RemoteRepository> getRemoteRepositories() {
+               return remoteRepositories;
+       }
+
+       public void setRemoteRepositories(List<RemoteRepository> remoteRepositories) {
+               this.remoteRepositories = remoteRepositories;
+       }
+
+}