| #region Apache License, Version 2.0 |
| // |
| // 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. |
| // |
| #endregion |
| using System; |
| using System.IO; |
| using System.Reflection; |
| using System.Runtime.Remoting; |
| using NPanday.Plugin; |
| |
| namespace NPanday.Plugin.Loader |
| { |
| /// <summary> |
| /// Provides methods for loading plugins and for creating Mojos. |
| /// </summary> |
| internal sealed class PluginLoader |
| { |
| internal PluginLoader() |
| { |
| } |
| |
| /// <summary> |
| /// Loads the specified plugin assembly file into the returned plugin application domain. |
| /// </summary> |
| /// <param name="pluginAssemblyFile">the.NET maven plugin</param> |
| /// <returns>application domain for .NET maven plugin</returns> |
| /// |
| internal AppDomain LoadPlugin(FileInfo pluginAssemblyFile) |
| { |
| Console.WriteLine("Loading Plugin: " + pluginAssemblyFile.DirectoryName); |
| AppDomainSetup setup = new AppDomainSetup(); |
| setup.ApplicationBase = pluginAssemblyFile.DirectoryName; |
| |
| AppDomain applicationDomain = AppDomain.CreateDomain("Loader", null, setup); |
| string assemblyName = pluginAssemblyFile.Name.Replace(pluginAssemblyFile.Extension,""); |
| applicationDomain.Load(assemblyName); |
| return applicationDomain; |
| } |
| |
| /// <summary> |
| /// Creates an instance of the specified mojo name within the specified application domain. |
| /// </summary> |
| /// <param name="mojoName">the name of the mojo to create</param> |
| /// <param name="pluginAssemblyFile">the.NET maven plugin</param> |
| /// <param name="paramFile">the file containing the parameters to inject into an instance |
| /// of the specified mojo</param> |
| /// <param name="applicationDomain"> |
| /// the application domain used to create the specified mojo name instance</param> |
| /// <returns>an instance of the specified mojo name within the specified application domain</returns> |
| internal AbstractMojo CreateAbstractMojoFor(String mojoName, FileInfo pluginAssemblyFile, |
| FileInfo paramFile, AppDomain applicationDomain) |
| { |
| ObjectHandle objectHandle = |
| applicationDomain.CreateInstanceFrom(pluginAssemblyFile.FullName, mojoName); |
| AbstractMojo abstractMojo = (AbstractMojo) objectHandle.Unwrap(); |
| abstractMojo.InjectFields(paramFile.FullName); |
| return abstractMojo; |
| } |
| |
| public static int Main(string[] args) |
| { |
| string paramFilePath = GetArgFor("parameterFile", args); |
| string assemblyFilePath = GetArgFor("assemblyFile", args); |
| string mojoName = GetArgFor("mojoName", args); |
| Console.WriteLine("ParamFile = {0}, AssemblyFile = {1}, MojoName = {2}", |
| paramFilePath, assemblyFilePath, mojoName); |
| |
| if(paramFilePath == null || assemblyFilePath == null || mojoName == null) |
| { |
| Console.WriteLine("Missing arguement"); |
| return 1; |
| } |
| |
| FileInfo assemblyFile = new FileInfo(assemblyFilePath); |
| if (!assemblyFile.Exists) |
| { |
| Console.WriteLine("Assembly File does not exist: File = " + assemblyFile.FullName); |
| return 1; |
| } |
| FileInfo paramFile = new FileInfo(paramFilePath); |
| if (!paramFile.Exists) |
| { |
| Console.WriteLine("Param File does not exist: File = " + paramFile.FullName); |
| return 1; |
| } |
| |
| PluginLoader pluginLoader = new PluginLoader(); |
| AppDomain applicationDomain = pluginLoader.LoadPlugin(assemblyFile); |
| AbstractMojo abstractMojo = pluginLoader.CreateAbstractMojoFor(mojoName, |
| assemblyFile, |
| paramFile, |
| applicationDomain); |
| try { |
| abstractMojo.Execute(); |
| } |
| catch ( Exception e ) |
| { |
| Console.WriteLine("Exception occcurred: " + e ); |
| return 1; |
| } |
| return 0; |
| |
| } |
| |
| private static string GetArgFor(string name, string[] args) |
| { |
| char[] delim = {'='}; |
| foreach(string arg in args) |
| { |
| string[] tokens = arg.Split(delim); |
| if (tokens[0].Equals(name)) return tokens[1]; |
| } |
| return null; |
| } |
| } |
| } |