| /* |
| * Copyright 2017-present Open Networking Foundation |
| * |
| * 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. |
| */ |
| package org.onosproject.openstacknetworking.cli; |
| |
| import org.apache.karaf.shell.api.action.Command; |
| import org.apache.karaf.shell.api.action.lifecycle.Service; |
| import org.onosproject.cli.AbstractShellCommand; |
| import org.onosproject.core.ApplicationId; |
| import org.onosproject.core.CoreService; |
| import org.onosproject.net.flow.FlowRuleService; |
| import org.onosproject.openstacknetworking.api.Constants; |
| |
| import static java.lang.Thread.sleep; |
| import static java.util.stream.StreamSupport.stream; |
| import static org.onosproject.cli.AbstractShellCommand.get; |
| |
| /** |
| * Purges all existing network states. |
| */ |
| @Service |
| @Command(scope = "onos", name = "openstack-purge-rules", |
| description = "Purges all flow rules installed by OpenStack networking app") |
| public class OpenstackPurgeRulesCommand extends AbstractShellCommand { |
| |
| private static final long TIMEOUT_MS = 10000; // we wait 10s |
| private static final long SLEEP_MS = 2000; // we wait 2s for init each node |
| |
| @Override |
| protected void doExecute() { |
| FlowRuleService flowRuleService = get(FlowRuleService.class); |
| CoreService coreService = get(CoreService.class); |
| ApplicationId appId = coreService.getAppId(Constants.OPENSTACK_NETWORKING_APP_ID); |
| |
| if (appId == null) { |
| error("Failed to purge OpenStack networking flow rules."); |
| return; |
| } |
| |
| flowRuleService.removeFlowRulesById(appId); |
| print("Successfully purged flow rules installed by OpenStack networking app."); |
| |
| boolean result = true; |
| long timeoutExpiredMs = System.currentTimeMillis() + TIMEOUT_MS; |
| |
| // we make sure all flow rules are removed from the store |
| while (stream(flowRuleService.getFlowEntriesById(appId) |
| .spliterator(), false).count() > 0) { |
| |
| long waitMs = timeoutExpiredMs - System.currentTimeMillis(); |
| |
| try { |
| sleep(SLEEP_MS); |
| } catch (InterruptedException e) { |
| log.error("Exception caused during rule purging..."); |
| } |
| |
| if (stream(flowRuleService.getFlowEntriesById(appId) |
| .spliterator(), false).count() == 0) { |
| break; |
| } else { |
| flowRuleService.removeFlowRulesById(appId); |
| print("Failed to purging flow rules, retrying rule purging..."); |
| } |
| |
| if (waitMs <= 0) { |
| result = false; |
| break; |
| } |
| } |
| |
| if (result) { |
| print("Successfully purged flow rules!"); |
| } else { |
| error("Failed to purge flow rules."); |
| } |
| } |
| } |