/** * Generated resource id for specified resource First check the available counter, otherwise * increment counter and return * * @param connection - DB Connection instance * @param freeCounterBean - Bean corresponding to os_free_counter_tbl * @return - generated resource-id, -1 is error occurred * @throws SQLException */ public int getResourceId(Connection connection, FreeCounterBean freeCounterBean) throws SQLException { LOG.trace("Start ResourceIdManager#getResourceId()"); int resourceCounter = -1; /* * Check if any resource counter is available that can be used */ final FreeCounterDao freeCounterDao = new FreeCounterDao(); resourceCounter = freeCounterDao.getCounter(connection, freeCounterBean); freeCounterBean.setResourceCounter(resourceCounter); /* * resource counter is available in free resource counter pool then use * the same after deleting that from free resource counter pool. On the * other hand increment counter and return. */ if (resourceCounter != -1) { if (freeCounterDao.deleteCounter(connection, freeCounterBean) != 1) { LOG.error("Error in deletion of resource counter from os_free_counter_tbl."); resourceCounter = -1; } } else { LOG.info("Resource counter is not available in os_free_counter_tbl."); LOG.debug( "Resource counter required to be generated for : " + freeCounterBean.getResourceId() + " and vtn_name : " + freeCounterBean.getVtnName()); if (freeCounterBean .getResourceId() .equalsIgnoreCase(VtnServiceOpenStackConsts.TENANT_RES_ID)) { LOG.debug("Resource generation for VTN."); final VtnDao vtnDao = new VtnDao(); resourceCounter = vtnDao.getNextId(connection); } else if (freeCounterBean .getResourceId() .equalsIgnoreCase(VtnServiceOpenStackConsts.NETWORK_RES_ID)) { LOG.debug("Resource generation for vBridge."); final VBridgeDao vBridgeDao = new VBridgeDao(); resourceCounter = vBridgeDao.getNextId(connection, freeCounterBean.getVtnName()); } else if (freeCounterBean .getResourceId() .equalsIgnoreCase(VtnServiceOpenStackConsts.PORT_RES_ID)) { LOG.debug("Resource generation for port/router interface."); final VBridgeInterfaceDao vbrInterfaceDao = new VBridgeInterfaceDao(); int portResourceCounter = vbrInterfaceDao.getNextId(connection, freeCounterBean.getVtnName()); final VRouterInterfaceDao vrtInterfaceDao = new VRouterInterfaceDao(); int interfaceResourceCounter = vrtInterfaceDao.getNextId(connection, freeCounterBean.getVtnName()); resourceCounter = portResourceCounter + interfaceResourceCounter - 1; } } LOG.info("Resource counter that will be used : " + resourceCounter); LOG.trace("Complete ResourceIdManager#getResourceId()"); return resourceCounter; }
/** * Manages the counters for all kind of resources available for OpenStack operations * * @param connection * @param freeCounterBean * @param resourceBean * @param ifIds2 * @return * @throws SQLException */ private boolean manageCounter( Connection connection, FreeCounterBean freeCounterBean, Object resourceBean, List<Integer> ifIds) throws SQLException { boolean result = false; final FreeCounterDao freeCounterDao = new FreeCounterDao(); /* * delete child counters in case of parent entity is deleted */ if (freeCounterBean.getResourceId().equalsIgnoreCase(VtnServiceOpenStackConsts.TENANT_RES_ID)) { FreeCounterBean localBean = new FreeCounterBean(); localBean.setVtnName(((VtnBean) resourceBean).getVtnName()); freeCounterDao.deleteVtnChilds(connection, localBean); } else if (freeCounterBean .getResourceId() .equalsIgnoreCase(VtnServiceOpenStackConsts.NETWORK_RES_ID) || freeCounterBean .getResourceId() .equalsIgnoreCase(VtnServiceOpenStackConsts.ROUTER_RES_ID)) { if (ifIds.size() > 0) { // insert unused counter into os_free_resource_counter table FreeCounterBean localBean = new FreeCounterBean(); localBean.setResourceId(VtnServiceOpenStackConsts.PORT); localBean.setVtnName(freeCounterBean.getVtnName()); for (int i = 0; i < ifIds.size(); i++) { localBean.setResourceCounter(ifIds.get(i)); freeCounterDao.insertCounter(connection, localBean); } } } /* * if resource counter is 0, then no need to insert resource counter in * pool */ if (freeCounterBean.getResourceCounter() == 0) { LOG.debug( "Resource counter is not auto-generated, insertion not required in os_res_counter table."); result = true; } else { LOG.debug("Resource is auto-generated, insertion required in os_res_counter table."); result = freeCounterDao.insertCounter(connection, freeCounterBean) == 1; } return result; }