1 files changed, 114 insertions, 0 deletions
diff --git a/framework/src/maven/apache-maven-3.3.3/maven-core/src/main/java/org/apache/maven/lifecycle/internal/DependencyContext.java b/framework/src/maven/apache-maven-3.3.3/maven-core/src/main/java/org/apache/maven/lifecycle/internal/DependencyContext.java
new file mode 100644
index 00000000..18fae7a9
--- /dev/null
+++ b/framework/src/maven/apache-maven-3.3.3/maven-core/src/main/java/org/apache/maven/lifecycle/internal/DependencyContext.java
@@ -0,0 +1,114 @@
+package org.apache.maven.lifecycle.internal;
+
+/*
+ * 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.
+ */
+
+import org.apache.maven.project.MavenProject;
+
+import java.util.Arrays;
+import java.util.Collection;
+import java.util.Collections;
+import java.util.TreeSet;
+
+/**
+ * Context of dependency artifacts for a particular project.
+ *
+ * @since 3.0
+ * @author Benjamin Bentmann
+ * @author Kristian Rosenvold (class extract only)
+ *         <p/>
+ *         NOTE: This class is not part of any public api and can be changed or deleted without prior notice.
+ */
+// TODO: From a concurrency perspective, this class is not good. The combination of mutable/immutable state is not nice
+public class DependencyContext
+{
+
+    private static final Collection<?> UNRESOLVED = Arrays.asList();
+
+    private final MavenProject project;
+
+    private final Collection<String> scopesToCollectForCurrentProject;
+
+    private final Collection<String> scopesToResolveForCurrentProject;
+
+    private final Collection<String> scopesToCollectForAggregatedProjects;
+
+    private final Collection<String> scopesToResolveForAggregatedProjects;
+
+    private volatile Collection<?> lastDependencyArtifacts = UNRESOLVED;
+
+    private volatile int lastDependencyArtifactCount = -1;
+
+    public DependencyContext( MavenProject project, Collection<String> scopesToCollect,
+                              Collection<String> scopesToResolve )
+    {
+        this.project = project;
+        scopesToCollectForCurrentProject = scopesToCollect;
+        scopesToResolveForCurrentProject = scopesToResolve;
+        scopesToCollectForAggregatedProjects = Collections.synchronizedSet( new TreeSet<String>() );
+        scopesToResolveForAggregatedProjects = Collections.synchronizedSet( new TreeSet<String>() );
+    }
+
+    public MavenProject getProject()
+    {
+        return project;
+    }
+
+    public Collection<String> getScopesToCollectForCurrentProject()
+    {
+        return scopesToCollectForCurrentProject;
+    }
+
+    public Collection<String> getScopesToResolveForCurrentProject()
+    {
+        return scopesToResolveForCurrentProject;
+    }
+
+    public Collection<String> getScopesToCollectForAggregatedProjects()
+    {
+        return scopesToCollectForAggregatedProjects;
+    }
+
+    public Collection<String> getScopesToResolveForAggregatedProjects()
+    {
+        return scopesToResolveForAggregatedProjects;
+    }
+
+    public boolean isResolutionRequiredForCurrentProject()
+    {
+        return lastDependencyArtifacts != project.getDependencyArtifacts() || ( lastDependencyArtifacts != null
+            && lastDependencyArtifactCount != lastDependencyArtifacts.size() );
+    }
+
+    public boolean isResolutionRequiredForAggregatedProjects( Collection<String> scopesToCollect,
+                                                              Collection<String> scopesToResolve )
+    {
+        boolean required =
+            scopesToCollectForAggregatedProjects.addAll( scopesToCollect )
+                || scopesToResolveForAggregatedProjects.addAll( scopesToResolve );
+        return required;
+    }
+
+    public void synchronizeWithProjectState()
+    {
+        lastDependencyArtifacts = project.getDependencyArtifacts();
+        lastDependencyArtifactCount = ( lastDependencyArtifacts != null ) ? lastDependencyArtifacts.size() : 0;
+    }
+
+}