1 files changed, 119 insertions, 0 deletions
diff --git a/framework/src/maven/apache-maven-3.3.3/maven-aether-provider/src/main/java/org/apache/maven/repository/internal/DefaultModelCache.java b/framework/src/maven/apache-maven-3.3.3/maven-aether-provider/src/main/java/org/apache/maven/repository/internal/DefaultModelCache.java
new file mode 100644
index 00000000..f13495df
--- /dev/null
+++ b/framework/src/maven/apache-maven-3.3.3/maven-aether-provider/src/main/java/org/apache/maven/repository/internal/DefaultModelCache.java
@@ -0,0 +1,119 @@
+package org.apache.maven.repository.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.model.building.ModelCache;
+import org.eclipse.aether.RepositoryCache;
+import org.eclipse.aether.RepositorySystemSession;
+
+/**
+ * A model builder cache backed by the repository system cache.
+ *
+ * @author Benjamin Bentmann
+ */
+class DefaultModelCache
+    implements ModelCache
+{
+
+    private final RepositorySystemSession session;
+
+    private final RepositoryCache cache;
+
+    public static ModelCache newInstance( RepositorySystemSession session )
+    {
+        if ( session.getCache() == null )
+        {
+            return null;
+        }
+        else
+        {
+            return new DefaultModelCache( session );
+        }
+    }
+
+    private DefaultModelCache( RepositorySystemSession session )
+    {
+        this.session = session;
+        this.cache = session.getCache();
+    }
+
+    public Object get( String groupId, String artifactId, String version, String tag )
+    {
+        return cache.get( session, new Key( groupId, artifactId, version, tag ) );
+    }
+
+    public void put( String groupId, String artifactId, String version, String tag, Object data )
+    {
+        cache.put( session, new Key( groupId, artifactId, version, tag ), data );
+    }
+
+    static class Key
+    {
+
+        private final String groupId;
+
+        private final String artifactId;
+
+        private final String version;
+
+        private final String tag;
+
+        private final int hash;
+
+        public Key( String groupId, String artifactId, String version, String tag )
+        {
+            this.groupId = groupId;
+            this.artifactId = artifactId;
+            this.version = version;
+            this.tag = tag;
+
+            int h = 17;
+            h = h * 31 + this.groupId.hashCode();
+            h = h * 31 + this.artifactId.hashCode();
+            h = h * 31 + this.version.hashCode();
+            h = h * 31 + this.tag.hashCode();
+            hash = h;
+        }
+
+        @Override
+        public boolean equals( Object obj )
+        {
+            if ( this == obj )
+            {
+                return true;
+            }
+            if ( null == obj || !getClass().equals( obj.getClass() ) )
+            {
+                return false;
+            }
+
+            Key that = (Key) obj;
+            return artifactId.equals( that.artifactId ) && groupId.equals( that.groupId )
+                && version.equals( that.version ) && tag.equals( that.tag );
+        }
+
+        @Override
+        public int hashCode()
+        {
+            return hash;
+        }
+
+    }
+}