/**********************************************************************
 *
 * nullproto.cpp -- 
 * Copyright (C) 1999  The New Zealand Digital Library Project
 *
 * A component of the Greenstone digital library software
 * from the New Zealand Digital Library Project at the
 * University of Waikato, New Zealand.
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 *
 *********************************************************************/

#include "nullproto.h"
#include "colservrconfig.h"
#include <assert.h>


// this configure will configure each of the collection servers
void nullproto::configure (const text_t &key, const text_tarray &cfgline) {
  // the naming of the collection should not be done here,
  // it should be done just after the collection server has been 
  // created
  if (key == "collection" || key == "collectdir") return;

  collectservermapclass::iterator here = cservers.begin();
  collectservermapclass::iterator end = cservers.end();

  while (here != end) {
    assert ((*here).second.c != NULL);
    if ((*here).second.c != NULL) {
      if (key == "collectinfo") {
	if ((*here).first == cfgline[0]) {
	  (*here).second.c->configure ("gsdlhome", cfgline[1]);
	  (*here).second.c->configure ("gdbmhome", cfgline[2]);
	}
      } else {
	(*here).second.c->configure (key, cfgline);
      }
    }

    here++;
  }
}

// this init will configure and init each of the collection servers
bool nullproto::init (ostream &logout) {
  collectservermapclass::iterator here = cservers.begin();
  collectservermapclass::iterator end = cservers.end();

  while (here != end) {
    assert ((*here).second.c != NULL);
    if ((*here).second.c != NULL) {
      const colservrconf &configinfo = (*here).second.c->get_configinfo ();

      // configure this collection server

      // note that we read build.cfg before collect.cfg so that the indexmaps
      // are available to decode defaultindex, defaultsubcollection, and
      // defaultlanguage
      if (!build_cfg_read (*((*here).second.c), configinfo.gsdlhome,
			   configinfo.collection)) {
	outconvertclass text_t2ascii;
	logout << text_t2ascii 
	       << "Warning: couldn't read build.cfg file for collection \"" //****
	       << configinfo.collection << "\", gsdlhome=\""
	       << configinfo.gsdlhome << "\"\n";
	//	return false; //****
	here ++;
	continue;
      }

      if (!collect_cfg_read (*((*here).second.c), configinfo.gsdlhome,
			     configinfo.collection)) {
	outconvertclass text_t2ascii;
	logout << text_t2ascii 
	       << "Warning: couldn't read collect.cfg file for collection \""
	       << configinfo.collection << "\", gsdlhome=\"" 
	       << configinfo.gsdlhome << "\"\n";
	//	return false; //****
	here ++;
	continue;
      }

      if (!(*here).second.c->init (logout)) return false;
    }
    here++;
  }

  return true;
}

text_t nullproto::get_protocol_name () {
  return "nullproto";
}


void nullproto::get_collection_list (text_tarray &collist, comerror_t &err, 
				     ostream &/*logout*/) {
  collist.erase(collist.begin(),collist.end());
  err = noError;

  collectservermapclass::iterator here = cservers.begin();
  collectservermapclass::iterator end = cservers.end();
  while (here != end) {
    assert ((*here).second.c != NULL);
    if ((*here).second.c != NULL) {
      collist.push_back ((*here).second.c->get_collection_name());
    }
    here++;
  }
}

void nullproto::has_collection (const text_t &collection, bool &hascollection, 
				comerror_t &err, ostream &/*logout*/) {
  hascollection = (cservers.getcollectserver(collection) != NULL);
  err = noError;
}

void nullproto::ping (const text_t &collection, bool &wassuccess, 
		      comerror_t &err, ostream &/*logout*/) {
  wassuccess = (cservers.getcollectserver(collection) != NULL);
  err = noError;
}

void nullproto::get_collectinfo (const text_t &collection, 
				 ColInfoResponse_t &collectinfo,
				 comerror_t &err, ostream &logout) {
  collectserver *cserver = cservers.getcollectserver (collection);
  if (cserver != NULL) cserver->get_collectinfo (collectinfo, err, logout);
  else err = protocolError;
}


void nullproto::get_filterinfo (const text_t &collection,
				InfoFiltersResponse_t &response,
				comerror_t &err, ostream &logout) {
  collectserver *cserver = cservers.getcollectserver (collection);
  if (cserver != NULL) cserver->get_filterinfo (response, err, logout);
  else err = protocolError;
}

void nullproto::get_filteroptions (const text_t &collection,
				   const InfoFilterOptionsRequest_t &request,
				   InfoFilterOptionsResponse_t &response, 
				   comerror_t &err, ostream &logout) {
  collectserver *cserver = cservers.getcollectserver (collection);
  if (cserver != NULL) cserver->get_filteroptions (request, response, err, logout);
  else err = protocolError;
}

void nullproto::filter (const text_t &collection,
			FilterRequest_t &request,
			FilterResponse_t &response,
			comerror_t &err, ostream &logout) {
  collectserver *cserver = cservers.getcollectserver (collection);
  if (cserver != NULL) cserver->filter (request, response, err, logout);
  else err = protocolError;
}

void nullproto::get_document (const text_t &collection,
			      const DocumentRequest_t &request,
			      DocumentResponse_t &response,
			      comerror_t &err, ostream &logout) {
  collectserver *cserver = cservers.getcollectserver (collection);
  if (cserver != NULL) cserver->get_document (request, response, err, logout);
  else err = protocolError;
}