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/*
* Copyright (c) 2017 Cisco and/or its affiliates.
* 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.
*/
#include <config.h>
#include <stdbool.h>
#include <stdint.h>
#include <strings.h>
#include <stdlib.h>
#include <stdio.h>
#include <LongBow/runtime.h>
#include <parc/algol/parc_Memory.h>
#include <ccnx/api/control/cpi_ManageLinks.h>
#include <ccnx/api/control/cpi_Forwarding.h>
#include <ccnx/forwarder/metis/core/metis_Forwarder.h>
#include <ccnx/forwarder/metis/core/metis_Dispatcher.h>
#include <ccnx/forwarder/metis/config/metisControl_SetDebug.h>
static MetisCommandReturn _metisControlSetStrategy_Execute(MetisCommandParser *parser, MetisCommandOps *ops, PARCList *args);
static MetisCommandReturn _metisControlSetStrategy_HelpExecute(MetisCommandParser *parser, MetisCommandOps *ops, PARCList *args);
static const char *_commandSetStrategy = "set strategy";
static const char *_commandSetStrategyHelp = "help set strategy";
// ====================================================
MetisCommandOps *
metisControlSetStrategy_Create(MetisControlState *state)
{
return metisCommandOps_Create(state, _commandSetStrategy, NULL, _metisControlSetStrategy_Execute, metisCommandOps_Destroy);
}
MetisCommandOps *
metisControlSetStrategy_HelpCreate(MetisControlState *state)
{
return metisCommandOps_Create(state, _commandSetStrategyHelp, NULL, _metisControlSetStrategy_HelpExecute, metisCommandOps_Destroy);
}
// ====================================================
static MetisCommandReturn
_metisControlSetStrategy_HelpExecute(MetisCommandParser *parser, MetisCommandOps *ops, PARCList *args)
{
printf("set strategy <prefix> <strategy>\n");
printf("available strateies:\n");
printf(" random\n");
printf(" loadbalancer\n");
printf(" random_per_dash_segment\n");
printf(" loadbalancer_with_delay\n");
printf("\n");
return MetisCommandReturn_Success;
}
static MetisCommandReturn
_metisControlSetStrategy_Execute(MetisCommandParser *parser, MetisCommandOps *ops, PARCList *args)
{
MetisControlState *state = ops->closure;
if (parcList_Size(args) != 4) {
_metisControlSetStrategy_HelpExecute(parser, ops, args);
return MetisCommandReturn_Failure;
}
if (((strcmp(parcList_GetAtIndex(args, 0), "set") != 0) || (strcmp(parcList_GetAtIndex(args, 1), "strategy") != 0))) {
_metisControlSetStrategy_HelpExecute(parser, ops, args);
return MetisCommandReturn_Failure;
}
const char *prefixString = parcList_GetAtIndex(args, 2);
const char *strategy = parcList_GetAtIndex(args, 3);
CCNxName *prefix = ccnxName_CreateFromCString(prefixString);
if (prefix == NULL) {
printf("ERROR: could not parse prefix '%s'\n", prefixString);
return MetisCommandReturn_Failure;
}
CPIForwardingStrategy *fwdStrategy = cpiForwardingStrategy_Create(prefix, (char *) strategy);
CCNxControl *setFwdStrategyRequest = ccnxControl_CreateSetStrategyRequest(fwdStrategy);
cpiForwardingStrategy_Destroy(&fwdStrategy);
if (metisControlState_GetDebug(state)) {
char *str = parcJSON_ToString(ccnxControl_GetJson(setFwdStrategyRequest));
printf("request: %s\n", str);
parcMemory_Deallocate((void **) &str);
}
CCNxMetaMessage *message = ccnxMetaMessage_CreateFromControl(setFwdStrategyRequest);
CCNxMetaMessage *rawResponse = metisControlState_WriteRead(state, message);
ccnxMetaMessage_Release(&message);
ccnxControl_Release(&setFwdStrategyRequest);
CCNxControl *response = ccnxMetaMessage_GetControl(rawResponse);
if (metisControlState_GetDebug(state)) {
char *str = parcJSON_ToString(ccnxControl_GetJson(response));
printf("response: %s\n", str);
parcMemory_Deallocate((void **) &str);
}
ccnxMetaMessage_Release(&rawResponse);
return MetisCommandReturn_Success;
}
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