one/include/MarketPlacePool.h

/* -------------------------------------------------------------------------- */
/* Copyright 2002-2015, OpenNebula Project, OpenNebula Systems                */
/*                                                                            */
/* Licensed 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                                                   */
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/* 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,          */
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/* See the License for the specific language governing permissions and        */
/* limitations under the License.                                             */
/* -------------------------------------------------------------------------- */

#ifndef MARKETPLACE_POOL_H_
#define MARKETPLACE_POOL_H_

#include "Marketplace.h"
#include "SqlDB.h"

class SqlDB;

class MarketPlacePool : public PoolSQL
{
public:
    MarketPlacePool(SqlDB * db):PoolSQL(db, MarketPlace::table, true, true){};

    ~MarketPlacePool(){};

    /* ---------------------------------------------------------------------- */
    /* Methods for DB management                                              */
    /* ---------------------------------------------------------------------- */

    /**
     *  Allocates a new Datastore, writing it in the pool database. No memory is
     *  allocated for the object.
     *    @param uid the user id of the Datastore owner
     *    @param gid the id of the group this object is assigned to
     *    @param uname name of the user
     *    @param gname name of the group
     *    @param umask permissions umask
     *    @param mp_template MarketPlace definition template
     *    @param oid the id assigned to the MarketPlace
     *    @param error_str Returns the error reason, if any
     *
     *    @return the oid assigned to the object, -1 in case of failure
     */
    int allocate(
            int                uid,
            int                gid,
            const std::string& uname,
            const std::string& gname,
            int                umask,
            MarketPlaceTemplate * mp_template,
            int *              oid,
            std::string&       error_str);

    /**
     *  Function to get a MarketPlace from the pool, the object is loaded if not
     *  in memory
     *    @param oid Datastore unique id
     *    @param lock locks the MarketPlace mutex
     *    @return a pointer to the MarketPlace, 0 if not loaded
     */
    MarketPlace * get(int oid, bool lock)
    {
        return static_cast<MarketPlace *>(PoolSQL::get(oid,lock));
    };

    /**
     *  Gets an object from the pool (if needed the object is loaded from the
     *  database).
     *   @param name of the object
     *   @param lock locks the object if true
     *
     *   @return a pointer to the object, 0 in case of failure
     */
    Datastore * get(const std::string& name, bool lock)
    {
        return static_cast<Datastore *>(PoolSQL::get(name,-1,lock));
    };

    /**
     *  Generate an index key for the object
     *    @param name of the object
     *    @param uid owner of the object, only used if needed
     *
     *    @return the key, a string
     */
    string key(const std::string& name, int uid)
    {
        return name;
    };

    /** Update a particular Datastore
     *    @param user pointer to Datastore
     *    @return 0 on success
     */
    int update(Datastore * datastore)
    {
        return datastore->update(db);
    };

    /**
     *  Drops the MarketPlac data in the data base. The object mutex SHOULD be
     *  locked.
     *    @param objsql a pointer to the Datastore object
     *    @param error_msg Error reason, if any
     *    @return 0 on success, -1 DB error
     *            -3 Datastore's Image IDs set is not empty
     */
    int drop(PoolObjectSQL * objsql, std::string& error_msg)
	{
		MarketPlace *mp  = static_cast<MarketPlace *>(objsql);

    	if( mp->get_collection_size() > 0 )
		{
			std::ostringstream oss;

			oss << "MarketPlace " << datastore->get_oid() << " is not empty.";
			error_msg = oss.str();

			NebulaLog::log("MARKETPLACE", Log::ERROR, error_msg);

			return -3;
		}

		return PoolSQL::drop(objsql, error_msg);
	}

    /**
     *  Bootstraps the database table(s) associated to the Datastore pool
     *    @return 0 on success
     */
    static int bootstrap(SqlDB * _db)
    {
        return MarketPlace::bootstrap(_db);
    };

    /**
     *  Dumps the MarketPlace pool in XML format. A filter can be also added to
     *  the query
     *  @param oss the output stream to dump the pool contents
     *  @param where filter for the objects, defaults to all
     *  @param limit parameters used for pagination
     *
     *  @return 0 on success
     */
    int dump(std::ostringstream& oss, const std::string& where,
		const std::string& limit)
    {
        return PoolSQL::dump(oss, "MARKETPLACE_POOL", MarketPlace::table, where,
                             limit);
    };

private:

    /**
     *  Factory method to produce objects
     *    @return a pointer to the new object
     */
    PoolObjectSQL * create()
    {
        return new MarketPlace(-1,-1,"","", 0, 0);
    };
};

#endif /*MARKETPLACE_POOL_H_*/