package com.atlassian.plugin.osgi.factory;
   
   import com.atlassian.plugin.IllegalPluginStateException;
   import com.atlassian.plugin.PluginArtifact;
   import com.atlassian.plugin.module.ContainerAccessor;
   import com.atlassian.plugin.osgi.container.OsgiContainerException;
   import com.atlassian.plugin.osgi.container.OsgiContainerManager;
   import com.atlassian.plugin.osgi.util.OsgiHeaderUtil;
   import org.osgi.framework.Bundle;
  import org.osgi.util.tracker.ServiceTracker;
  import org.slf4j.Logger;
  import org.slf4j.LoggerFactory;
  
  import java.io.File;
  import java.io.InputStream;
  import java.net.URL;
  import java.util.Set;
  
  import static com.atlassian.plugin.osgi.factory.transform.JarUtils.getManifest;
  import static com.atlassian.plugin.osgi.factory.transform.JarUtils.hasManifestEntry;
  import static com.google.common.base.Preconditions.checkNotNull;
  
  /**
   * Helper class that implements the methods assuming the OSGi plugin has not been installed
   *
   * @since 2.2.0
   */
  final class OsgiPluginUninstalledHelper implements OsgiPluginHelper
  {
      private final Logger logger = LoggerFactory.getLogger(this.getClass());
  
      private final String key;
      private final OsgiContainerManager osgiContainerManager;
      private final PluginArtifact pluginArtifact;
  
      public OsgiPluginUninstalledHelper(String key, final OsgiContainerManager mgr, final PluginArtifact artifact)
      {
          this.key = checkNotNull(key);
          this.pluginArtifact = checkNotNull(artifact);
          this.osgiContainerManager = checkNotNull(mgr);
      }
  
      public Bundle getBundle()
      {
          throw new IllegalPluginStateException(getNotInstalledMessage());
      }
  
      public <T> Class<T> loadClass(String clazz, Class<?> callingClass) throws ClassNotFoundException
      {
          throw new IllegalPluginStateException(getNotInstalledMessage() + " This is probably because the module " +
                  "descriptor is trying to load classes in its init() method.  Move all classloading into the " +
                  "enabled() method, and be sure to properly drop class and instance references in disabled().");
      }
  
      public URL getResource(String name)
      {
          throw new IllegalPluginStateException(getNotInstalledMessage());
      }
  
      public InputStream getResourceAsStream(String name)
      {
          throw new IllegalPluginStateException(getNotInstalledMessage());
      }
  
      public ClassLoader getClassLoader()
      {
          throw new IllegalPluginStateException(getNotInstalledMessage());
      }
  
      public Bundle install()
      {
          final File osgiPlugin = pluginArtifact.toFile();
          logger.debug("Installing OSGi plugin '{}'", osgiPlugin);
          final Bundle bundle = osgiContainerManager.installBundle(osgiPlugin);
          if (!OsgiHeaderUtil.getPluginKey(bundle).equals(key))
          {
              throw new IllegalArgumentException("The plugin key '" + key + "' must either match the OSGi bundle symbolic " +
                      "name (Bundle-SymbolicName) or be specified in the Atlassian-Plugin-Key manifest header");
          }
          return bundle;
      }
  
      public void onEnable(ServiceTracker... serviceTrackers) throws OsgiContainerException
      {
          throw new IllegalPluginStateException(getNotInstalledMessage());
      }
  
      public void onDisable() throws OsgiContainerException
      {
          throw new IllegalPluginStateException(getNotInstalledMessage());
      }
  
      public void onUninstall() throws OsgiContainerException
      {
          throw new IllegalPluginStateException(getNotInstalledMessage());
      }
  
      public Set<String> getRequiredPlugins()
      {
         throw new IllegalPluginStateException(getNotInstalledMessage());
     }
 
     public void setPluginContainer(Object container)
     {
         throw new IllegalPluginStateException(getNotInstalledMessage());
     }
 
     public ContainerAccessor getContainerAccessor()
     {
         throw new IllegalPluginStateException(getNotInstalledMessage());
     }
 
     public ContainerAccessor getRequiredContainerAccessor()
     {
         throw new IllegalPluginStateException(getNotInstalledMessage());
     }
 
     private String getNotInstalledMessage()
     {
         return "This operation requires the plugin '" + key + "' to be installed";
     }
 
     @Override
     public boolean isRemotePlugin()
     {
         return hasManifestEntry(getManifest(pluginArtifact.toFile()), OsgiPlugin.REMOTE_PLUGIN_KEY);
     }
 }