o missing classes

git-svn-id: https://svn.apache.org/repos/asf/maven/components/branches/MNG-2766@777234 13f79535-47bb-0310-9956-ffa450edef68

maven-core/src/main/java/org/apache/maven/plugin/InvalidPluginDescriptorException.java

@@ -0,0 +1,15 @@
+package org.apache.maven.plugin;
+
+import java.util.List;
+
+public class InvalidPluginDescriptorException
+    extends Exception
+{
+    private List<String> errors;
+    
+    public InvalidPluginDescriptorException( String message, List<String> errors )
+    {
+        super( message );
+        this.errors = errors;
+    }
+}

maven-core/src/main/java/org/apache/maven/plugin/MavenPluginValidator.java

@@ -0,0 +1,62 @@
+package org.apache.maven.plugin;
+
+/*
+ * 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.util.ArrayList;
+import java.util.List;
+
+import org.apache.maven.artifact.Artifact;
+import org.apache.maven.plugin.descriptor.PluginDescriptor;
+
+public class MavenPluginValidator
+{
+    private final Artifact pluginArtifact;
+
+    private List<String> errors = new ArrayList<String>();
+
+    public MavenPluginValidator( Artifact pluginArtifact )
+    {
+        this.pluginArtifact = pluginArtifact;
+    }
+
+    public void validate( PluginDescriptor pluginDescriptor )
+    {
+        if ( !pluginArtifact.getGroupId().equals( pluginDescriptor.getGroupId() ) )
+        {
+            errors.add( "Plugin's descriptor contains the wrong group ID: " + pluginDescriptor.getGroupId() );
+        }
+
+        if ( !pluginArtifact.getArtifactId().equals( pluginDescriptor.getArtifactId() ) )
+        {
+            errors.add( "Plugin's descriptor contains the wrong artifact ID: " + pluginDescriptor.getArtifactId() );
+        }
+
+        if ( !pluginArtifact.getBaseVersion().equals( pluginDescriptor.getVersion() ) )
+        {
+            errors.add( "Plugin's descriptor contains the wrong version: " + pluginDescriptor.getVersion() );
+        }
+    }
+
+    public boolean hasErrors()
+    {
+        return !errors.isEmpty();
+    }
+
+    public List<String> getErrors()
+    {
+        return errors;
+    }
+}