OPENDJ-3417 Remove several backend-related methods from DirectoryServer class

Nicolas Capponi

03.41.2016 aaf1f09351c43d52009c6b53b93eb153ace8428e

 opendj-server-legacy/src/main/java/org/opends/server/plugins/UniqueAttributePlugin.java

@@ -46,6 +46,7 @@
import org.opends.server.api.plugin.PluginResult.PostOperation;
import org.opends.server.api.plugin.PluginResult.PreOperation;
import org.opends.server.api.plugin.PluginType;
import org.opends.server.core.BackendConfigManager;
import org.opends.server.core.DirectoryServer;
import org.opends.server.protocols.internal.InternalClientConnection;
import org.opends.server.protocols.internal.InternalSearchOperation;
@@ -154,11 +155,13 @@
      cfgBaseDNs = DirectoryServer.getPublicNamingContexts().keySet();
    }

    BackendConfigManager backendConfigManager =
        DirectoryServer.getInstance().getServerContext().getBackendConfigManager();
    for (AttributeType t : configuration.getType())
    {
      for (DN baseDN : cfgBaseDNs)
      {
        LocalBackend<?> b = DirectoryServer.getLocalBackend(baseDN);
        LocalBackend<?> b = backendConfigManager.getLocalBackend(baseDN);
        if (b != null && ! b.isIndexed(t, IndexType.EQUALITY))
        {
          throw new ConfigException(ERR_PLUGIN_UNIQUEATTR_ATTR_UNINDEXED.get(
@@ -686,11 +689,13 @@
      cfgBaseDNs = DirectoryServer.getPublicNamingContexts().keySet();
    }

    BackendConfigManager backendConfigManager =
        DirectoryServer.getInstance().getServerContext().getBackendConfigManager();
    for (AttributeType t : configuration.getType())
    {
      for (DN baseDN : cfgBaseDNs)
      {
        LocalBackend<?> b = DirectoryServer.getLocalBackend(baseDN);
        LocalBackend<?> b = backendConfigManager.getLocalBackend(baseDN);
        if (b != null && ! b.isIndexed(t, IndexType.EQUALITY))
        {
          unacceptableReasons.add(ERR_PLUGIN_UNIQUEATTR_ATTR_UNINDEXED.get(