1 files changed, 150 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/MavenMetadata.java b/framework/src/maven/apache-maven-3.3.3/maven-aether-provider/src/main/java/org/apache/maven/repository/internal/MavenMetadata.java
new file mode 100644
index 00000000..bdf28783
--- /dev/null
+++ b/framework/src/maven/apache-maven-3.3.3/maven-aether-provider/src/main/java/org/apache/maven/repository/internal/MavenMetadata.java
@@ -0,0 +1,150 @@
+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 java.io.File;
+import java.io.IOException;
+import java.io.Reader;
+import java.io.Writer;
+import java.util.Collections;
+import java.util.Map;
+
+import org.apache.maven.artifact.repository.metadata.Metadata;
+import org.apache.maven.artifact.repository.metadata.io.xpp3.MetadataXpp3Reader;
+import org.apache.maven.artifact.repository.metadata.io.xpp3.MetadataXpp3Writer;
+import org.codehaus.plexus.util.IOUtil;
+import org.codehaus.plexus.util.ReaderFactory;
+import org.codehaus.plexus.util.WriterFactory;
+import org.codehaus.plexus.util.xml.pull.XmlPullParserException;
+import org.eclipse.aether.RepositoryException;
+import org.eclipse.aether.metadata.AbstractMetadata;
+import org.eclipse.aether.metadata.MergeableMetadata;
+
+/**
+ * @author Benjamin Bentmann
+ */
+abstract class MavenMetadata
+    extends AbstractMetadata
+    implements MergeableMetadata
+{
+
+    static final String MAVEN_METADATA_XML = "maven-metadata.xml";
+
+    private final File file;
+
+    protected Metadata metadata;
+
+    private boolean merged;
+
+    protected MavenMetadata( Metadata metadata, File file )
+    {
+        this.metadata = metadata;
+        this.file = file;
+    }
+
+    public String getType()
+    {
+        return MAVEN_METADATA_XML;
+    }
+
+    public File getFile()
+    {
+        return file;
+    }
+
+    public void merge( File existing, File result )
+        throws RepositoryException
+    {
+        Metadata recessive = read( existing );
+
+        merge( recessive );
+
+        write( result, metadata );
+
+        merged = true;
+    }
+
+    public boolean isMerged()
+    {
+        return merged;
+    }
+
+    protected abstract void merge( Metadata recessive );
+
+    static Metadata read( File metadataFile )
+        throws RepositoryException
+    {
+        if ( metadataFile.length() <= 0 )
+        {
+            return new Metadata();
+        }
+
+        Reader reader = null;
+        try
+        {
+            reader = ReaderFactory.newXmlReader( metadataFile );
+            return new MetadataXpp3Reader().read( reader, false );
+        }
+        catch ( IOException e )
+        {
+            throw new RepositoryException( "Could not read metadata " + metadataFile + ": " + e.getMessage(), e );
+        }
+        catch ( XmlPullParserException e )
+        {
+            throw new RepositoryException( "Could not parse metadata " + metadataFile + ": " + e.getMessage(), e );
+        }
+        finally
+        {
+            IOUtil.close( reader );
+        }
+    }
+
+    private void write( File metadataFile, Metadata metadata )
+        throws RepositoryException
+    {
+        Writer writer = null;
+        try
+        {
+            metadataFile.getParentFile().mkdirs();
+            writer = WriterFactory.newXmlWriter( metadataFile );
+            new MetadataXpp3Writer().write( writer, metadata );
+        }
+        catch ( IOException e )
+        {
+            throw new RepositoryException( "Could not write metadata " + metadataFile + ": " + e.getMessage(), e );
+        }
+        finally
+        {
+            IOUtil.close( writer );
+        }
+    }
+
+    public Map<String, String> getProperties()
+    {
+        return Collections.emptyMap();
+    }
+
+    @Override
+    public org.eclipse.aether.metadata.Metadata setProperties( Map<String, String> properties )
+    {
+        return this;
+    }
+
+}