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one/include/VMTemplatePool.h
2012-01-12 12:29:18 +01:00

126 lines
4.2 KiB
C++

/* -------------------------------------------------------------------------- */
/* Copyright 2002-2012, OpenNebula Project Leads (OpenNebula.org) */
/* */
/* 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 */
/* */
/* 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, */
/* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. */
/* See the License for the specific language governing permissions and */
/* limitations under the License. */
/* -------------------------------------------------------------------------- */
#ifndef VMTEMPLATE_POOL_H_
#define VMTEMPLATE_POOL_H_
#include "PoolSQL.h"
#include "VMTemplate.h"
/**
* The VMTemplate Pool class.
*/
class VMTemplatePool : public PoolSQL
{
public:
VMTemplatePool(SqlDB * db) : PoolSQL(db, VMTemplate::table){};
~VMTemplatePool(){};
/**
* Allocates a new object, writting it in the pool database. No memory is
* allocated for the object.
* @param uid user id (the owner of the Template)
* @param gid the id of the group this object is assigned to
* @param template_contents a VM Template object
* @param oid the id assigned to the Template
* @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 string& uname,
const string& gname,
VirtualMachineTemplate * template_contents,
int * oid,
string& error_str);
/**
* Gets an object from the pool (if needed the object is loaded from the
* database).
* @param oid the object unique identifier
* @param lock locks the object if true
*
* @return a pointer to the object, 0 in case of failure
*/
VMTemplate * get(int oid, bool lock)
{
return static_cast<VMTemplate *>(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 uid id of owner
* @param lock locks the object if true
*
* @return a pointer to the object, 0 in case of failure
*/
VMTemplate * get(const string& name, int uid, bool lock)
{
return static_cast<VMTemplate *>(PoolSQL::get(name,uid,lock));
};
/**
* Updates the object's data in the data base. The object mutex SHOULD be
* locked.
* @param objsql a pointer to the object
*
* @return 0 on success.
*/
int update(VMTemplate * vm_template)
{
return vm_template->update(db);
};
/**
* Dumps the 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
*
* @return 0 on success
*/
int dump(ostringstream& oss, const string& where)
{
return PoolSQL::dump(oss, "VMTEMPLATE_POOL",VMTemplate::table,where);
};
/**
* Bootstraps the database table(s) associated to the pool
* @return 0 on success
*/
static int bootstrap(SqlDB *_db)
{
return VMTemplate::bootstrap(_db);
};
private:
/**
* Factory method to produce Image objects
* @return a pointer to the new Image
*/
PoolObjectSQL * create()
{
return new VMTemplate(-1,-1,-1,"","",0);
};
};
#endif /*VMTEMPLATE_POOL_H_*/