mirror of
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140 lines
4.5 KiB
C++
140 lines
4.5 KiB
C++
/* -------------------------------------------------------------------------- */
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/* Copyright 2002-2020, OpenNebula Project, OpenNebula Systems */
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/* */
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/* Licensed under the Apache License, Version 2.0 (the "License"); you may */
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/* not use this file except in compliance with the License. You may obtain */
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/* a copy of the License at */
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/* */
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/* http://www.apache.org/licenses/LICENSE-2.0 */
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/* */
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/* Unless required by applicable law or agreed to in writing, software */
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/* distributed under the License is distributed on an "AS IS" BASIS, */
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/* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. */
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/* See the License for the specific language governing permissions and */
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/* limitations under the License. */
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/* -------------------------------------------------------------------------- */
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#ifndef VDC_POOL_H_
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#define VDC_POOL_H_
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#include "PoolSQL.h"
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#include "Vdc.h"
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#include "OneDB.h"
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class VdcPool : public PoolSQL
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{
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public:
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VdcPool(SqlDB * db,
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bool is_federation_slave);
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~VdcPool(){};
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/* ---------------------------------------------------------------------- */
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/* Methods for DB management */
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/* ---------------------------------------------------------------------- */
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/**
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* Allocates a new Vdc, writing it in the pool database. No memory is
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* allocated for the object.
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* @param vdc_template a Template object
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* @param oid the id assigned to the Vdc
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* @param error_str Returns the error reason, if any
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*
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* @return the oid assigned to the object, -1 in case of failure
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*/
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int allocate(Template * vdc_template,
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int * oid,
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std::string& error_str);
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/**
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* Gets an object from the pool (if needed the object is loaded from the
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* database). The object is locked, other threads can't access the same
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* object. The lock is released by destructor.
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* @param oid the Vdc unique identifier
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* @return a pointer to the Vdc, nullptr in case of failure
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*/
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std::unique_ptr<Vdc> get(int oid)
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{
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return PoolSQL::get<Vdc>(oid);
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}
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/** Update a particular Vdc
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* @param vdc pointer to Vdc
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* @return 0 on success
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*/
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int update(PoolObjectSQL * objsql);
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/**
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* Drops the Vdc from the data base. The object mutex SHOULD be
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* locked.
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* @param objsql a pointer to a Vdc object
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* @param error_msg Error reason, if any
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* @return 0 on success,
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* -1 DB error,
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* -2 object is a default Vdc (ID < 100)
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*/
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int drop(PoolObjectSQL * objsql, std::string& error_msg);
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/**
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* Bootstraps the database table(s) associated to the Vdc pool
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* @return 0 on success
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*/
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static int bootstrap(SqlDB * _db)
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{
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return Vdc::bootstrap(_db);
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};
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/**
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* Dumps the Vdc pool in XML format. A filter can be also added to the
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* query
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* @param oss the output stream to dump the pool contents
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* @param where filter for the objects, defaults to all
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* @param sid first element used for pagination
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* @param eid last element used for pagination, -1 to disable
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* @param desc descending order of pool elements
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*
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* @return 0 on success
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*/
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int dump(std::string& oss, const std::string& where, int sid, int eid,
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bool desc)
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{
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return PoolSQL::dump(oss, "VDC_POOL", "body", one_db::vdc_table,
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where, sid, eid, desc);
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};
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/**
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* Lists the VDC ids
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* @param oids a vector with the oids of the objects.
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*
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* @return 0 on success
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*/
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int list(std::vector<int>& oids)
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{
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return PoolSQL::list(oids, one_db::vdc_table);
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}
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/**
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* Default name for the default VDC
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*/
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static const std::string DEFAULT_NAME;
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/**
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* Identifier for the default VDC
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*/
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static const int DEFAULT_ID;
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private:
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/**
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* Factory method to produce objects
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* @return a pointer to the new object
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*/
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PoolObjectSQL * create()
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{
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return new Vdc(-1,0);
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};
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};
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#endif /*VDC_POOL_H_*/
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