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/*
* Copyright (c) 2008 Intel Corporation
* All rights reserved.
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* -- Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* -- Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* -- Neither the name of the Intel Corporation nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
* PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE INTEL OR ITS
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
using System;
using System.Collections.Generic;
using System.Reflection;
using OpenSim.Framework;
using OpenSim.Framework.Servers;
using OpenSim.Framework.Console;
using Nini.Config;
using log4net;
namespace OpenSim.Grid.AssetInventoryServer
{
public class AssetInventoryServer : BaseOpenSimServer
{
private static readonly ILog m_log = LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType);
public IConfigSource ConfigFile;
public IAssetStorageProvider StorageProvider;
public IInventoryStorageProvider InventoryProvider;
public IAuthenticationProvider AuthenticationProvider;
public IAuthorizationProvider AuthorizationProvider;
public IMetricsProvider MetricsProvider;
private List<IAssetInventoryServerPlugin> m_frontends = new List<IAssetInventoryServerPlugin>();
private List<IAssetInventoryServerPlugin> m_backends = new List<IAssetInventoryServerPlugin>();
public AssetInventoryServer(IConfigSource config)
{
ConfigFile = config;
m_console = new ConsoleBase("AssetInventory");
MainConsole.Instance = m_console;
}
public bool Start()
{
Startup();
m_log.Info("[ASSETINVENTORY]: Starting AssetInventory Server");
try
{
ConfigFile = AssetInventoryConfig.LoadConfig(ConfigFile);
}
catch (Exception)
{
m_log.Error("[ASSETINVENTORY]: Failed to load the config.");
return false;
}
StorageProvider = LoadAssetInventoryServerPlugin("/OpenSim/AssetInventoryServer/AssetStorageProvider",
"asset_storage_provider", false) as IAssetStorageProvider;
m_backends.Add(StorageProvider);
InventoryProvider = LoadAssetInventoryServerPlugin("/OpenSim/AssetInventoryServer/InventoryStorageProvider",
"inventory_storage_provider", false) as IInventoryStorageProvider;
m_backends.Add(InventoryProvider);
MetricsProvider = LoadAssetInventoryServerPlugin("/OpenSim/AssetInventoryServer/MetricsProvider",
"metrics_provider", false) as IMetricsProvider;
m_backends.Add(MetricsProvider);
try
{
InitHttpServer((uint) ConfigFile.Configs["Config"].GetInt("listen_port"));
}
catch (Exception ex)
{
m_log.Error("[ASSETINVENTORY]: Initializing the HTTP server failed, shutting down: " + ex.Message);
Shutdown();
return false;
}
AuthenticationProvider = LoadAssetInventoryServerPlugin("/OpenSim/AssetInventoryServer/AuthenticationProvider",
"authentication_provider", false) as IAuthenticationProvider;
m_backends.Add(AuthenticationProvider);
AuthorizationProvider = LoadAssetInventoryServerPlugin("/OpenSim/AssetInventoryServer/AuthorizationProvider",
"authorization_provider", false) as IAuthorizationProvider;
m_backends.Add(AuthorizationProvider);
m_frontends.AddRange(LoadAssetInventoryServerPlugins("/OpenSim/AssetInventoryServer/Frontend", "frontends"));
// Inform the user if we don't have any frontends at this point.
if (m_frontends.Count == 0)
m_log.Info("[ASSETINVENTORY]: Starting with no frontends loaded, which isn't extremely useful. Did you set the 'frontends' configuration parameter?");
return true;
}
public void Work()
{
m_console.Notice("Enter help for a list of commands");
while (true)
{
m_console.Prompt();
}
}
public override void ShutdownSpecific()
{
foreach (IAssetInventoryServerPlugin plugin in m_frontends)
{
m_log.Debug("[ASSETINVENTORY]: Disposing plugin " + plugin.Name);
try { plugin.Dispose(); }
catch (Exception ex)
{ m_log.ErrorFormat("[ASSETINVENTORY]: Failure shutting down plugin {0}: {1}", plugin.Name, ex.Message); }
}
foreach (IAssetInventoryServerPlugin plugin in m_backends)
{
m_log.Debug("[ASSETINVENTORY]: Disposing plugin " + plugin.Name);
try { plugin.Dispose(); }
catch (Exception ex)
{ m_log.ErrorFormat("[ASSETINVENTORY]: Failure shutting down plugin {0}: {1}", plugin.Name, ex.Message); }
}
if (HttpServer != null)
HttpServer.Stop();
}
void InitHttpServer(uint port)
{
m_httpServer = new BaseHttpServer(port);
m_httpServer.Start();
m_log.Info("[ASSETINVENTORY]: AssetInventory server is listening on port " + port);
}
private IAssetInventoryServerPlugin LoadAssetInventoryServerPlugin(string addinPath, string configParam, bool optional)
{
IAssetInventoryServerPlugin result = null;
List<IAssetInventoryServerPlugin> plugins = LoadAssetInventoryServerPlugins(addinPath, configParam);
if (plugins.Count == 1)
{
result = plugins[0];
}
else if (plugins.Count > 1)
{
m_log.ErrorFormat("[ASSETINVENTORY]: Only 1 plugin expected for extension point '{0}', {1} plugins loaded. Check the '{2}' parameter in the config file.",
addinPath, plugins.Count, configParam);
Shutdown();
Environment.Exit(0);
}
else if (!optional)
{
m_log.ErrorFormat("[ASSETINVENTORY]: The extension point '{0}' is not optional. Check the '{1}' parameter in the config file.", addinPath, configParam);
Shutdown();
Environment.Exit(0);
}
return result;
}
private List<IAssetInventoryServerPlugin> LoadAssetInventoryServerPlugins(string addinPath, string configParam)
{
PluginLoader<IAssetInventoryServerPlugin> loader = new PluginLoader<IAssetInventoryServerPlugin>(new AssetInventoryServerPluginInitialiser(this));
loader.Add(addinPath, new PluginIdFilter(ConfigFile.Configs["Plugins"].GetString(configParam)));
try
{
loader.Load();
}
catch (PluginNotInitialisedException e)
{
m_log.ErrorFormat("[ASSETINVENTORY]: Error initialising plugin '{0}' for extension point '{1}'.", e.Message, addinPath);
Shutdown();
Environment.Exit(0);
}
return loader.Plugins;
}
}
}
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