| /* |
| * Copyright 2015 Open Networking Laboratory |
| * |
| * 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.net.intent.impl.phase; |
| |
| import org.onosproject.net.flow.FlowRuleOperations; |
| import org.onosproject.net.intent.IntentData; |
| import org.onosproject.net.intent.IntentException; |
| import org.onosproject.net.intent.impl.IntentProcessor; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| import java.util.Optional; |
| |
| import static com.google.common.base.Preconditions.checkNotNull; |
| |
| /** |
| * Represents a phase of installing an intent with calling |
| * {@link org.onosproject.net.flow.FlowRuleService}. |
| */ |
| final class Installing implements IntentProcessPhase { |
| |
| private static final Logger log = LoggerFactory.getLogger(Installing.class); |
| |
| private final IntentProcessor processor; |
| private final IntentData pending; |
| private final FlowRuleOperations flowRules; |
| |
| Installing(IntentProcessor processor, IntentData pending, FlowRuleOperations flowRules) { |
| this.processor = checkNotNull(processor); |
| this.pending = checkNotNull(pending); |
| this.flowRules = flowRules; |
| } |
| |
| @Override |
| public Optional<IntentProcessPhase> execute() { |
| try { |
| processor.applyFlowRules(flowRules); |
| return Optional.of(new Installed(pending)); |
| // What kinds of exceptions are thrown by FlowRuleService.apply()? |
| // Is IntentException a correct exception abstraction? |
| } catch (IntentException e) { |
| log.warn("Unable to install intent {} due to: {}", pending.intent().id(), e); |
| return Optional.of(new InstallingFailed(pending)); |
| } |
| } |
| } |