ONOS-4080 ISIS Config Provider
Change-Id: I3387bef3babd402268cb49d371d37ac9e192fba6
diff --git a/providers/isis/cfg/src/main/java/org/onosproject/provider/isis/cfg/impl/IsisCfgProvider.java b/providers/isis/cfg/src/main/java/org/onosproject/provider/isis/cfg/impl/IsisCfgProvider.java
new file mode 100644
index 0000000..3fed3ca
--- /dev/null
+++ b/providers/isis/cfg/src/main/java/org/onosproject/provider/isis/cfg/impl/IsisCfgProvider.java
@@ -0,0 +1,130 @@
+/*
+ * Copyright 2016-present 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.provider.isis.cfg.impl;
+
+import com.fasterxml.jackson.databind.JsonNode;
+import org.apache.felix.scr.annotations.Activate;
+import org.apache.felix.scr.annotations.Component;
+import org.apache.felix.scr.annotations.Deactivate;
+import org.apache.felix.scr.annotations.Reference;
+import org.apache.felix.scr.annotations.ReferenceCardinality;
+import org.apache.felix.scr.annotations.Service;
+import org.onosproject.core.ApplicationId;
+import org.onosproject.core.CoreService;
+import org.onosproject.isis.controller.IsisController;
+import org.onosproject.net.config.ConfigFactory;
+import org.onosproject.net.config.NetworkConfigEvent;
+import org.onosproject.net.config.NetworkConfigListener;
+import org.onosproject.net.config.NetworkConfigRegistry;
+import org.onosproject.net.config.NetworkConfigService;
+import org.onosproject.net.config.basics.SubjectFactories;
+import org.onosproject.net.provider.AbstractProvider;
+import org.onosproject.net.provider.ProviderId;
+import org.slf4j.Logger;
+
+import static org.slf4j.LoggerFactory.getLogger;
+
+/**
+ * ISIS config provider to validate and populate the configuration.
+ */
+@Component(immediate = true)
+@Service
+public class IsisCfgProvider extends AbstractProvider {
+
+ private static final String PROVIDER_ID = "org.onosproject.provider.isis.cfg";
+ private static final Logger log = getLogger(IsisCfgProvider.class);
+ private final ConfigFactory configFactory =
+ new ConfigFactory(SubjectFactories.APP_SUBJECT_FACTORY, IsisAppConfig.class, "isisapp") {
+ @Override
+ public IsisAppConfig createConfig() {
+ return new IsisAppConfig();
+ }
+ };
+ private final NetworkConfigListener configListener = new InternalConfigListener();
+ @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+ protected IsisController isisController;
+ @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+ protected CoreService coreService;
+ @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+ protected NetworkConfigRegistry configRegistry;
+ @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+ protected NetworkConfigService configService;
+ private ApplicationId appId;
+
+ /**
+ * Creates an ISIS config provider.
+ */
+ public IsisCfgProvider() {
+ super(new ProviderId("isis", PROVIDER_ID));
+ }
+
+ @Activate
+ public void activate() {
+ log.debug("Activate...!!!");
+ appId = coreService.registerApplication(PROVIDER_ID);
+ configService.addListener(configListener);
+ configRegistry.registerConfigFactory(configFactory);
+ log.debug("ISIS cfg service got started");
+ }
+
+ @Deactivate
+ public void deactivate() {
+ log.debug("Deactivate...!!!");
+ configRegistry.unregisterConfigFactory(configFactory);
+ configService.removeListener(configListener);
+ }
+
+ /**
+ * Pushes the configuration changes to ISIS controller.
+ */
+ private void updateConfig() {
+ IsisAppConfig isisAppConfig = configRegistry.getConfig(appId, IsisAppConfig.class);
+ log.debug("IsisAppConfig::config processes::" + isisAppConfig.processes());
+ log.debug("IsisAppConfig::prop 1::" + isisAppConfig.method());
+ if ("ADD".equalsIgnoreCase(isisAppConfig.method())) {
+ JsonNode jsonNode = isisAppConfig.processes();
+ isisController.updateConfig(jsonNode);
+ }
+ }
+
+ /**
+ * Isis config listener to populate the configuration.
+ */
+ private class InternalConfigListener implements NetworkConfigListener {
+
+ @Override
+ public void event(NetworkConfigEvent event) {
+ log.debug("config event is getting called...!!!");
+ if (!event.configClass().equals(IsisAppConfig.class)) {
+ return;
+ }
+
+ switch (event.type()) {
+ case CONFIG_ADDED:
+ updateConfig();
+ break;
+ case CONFIG_UPDATED:
+ updateConfig();
+ break;
+ case CONFIG_REMOVED:
+ break;
+ default:
+ break;
+ }
+ }
+ }
+}
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