[ONOS-7683] Add default implementation of telemetry managers

Change-Id: I2f16c53c9467df56c324a208af8a5258a36f7604

apps/openstacktelemetry/app/BUCK

@@ -1,3 +1,5 @@
+GRPC_VER = '1.3.1'
+
 COMPILE_DEPS = [
     '//lib:CORE_DEPS',
     '//lib:JACKSON',
@@ -8,6 +10,11 @@ COMPILE_DEPS = [
     '//cli:onos-cli',
     '//lib:org.apache.karaf.shell.console',
     '//apps/openstacktelemetry/api:onos-apps-openstacktelemetry-api',
+    '//lib:kafka-clients',
+    '//lib:influxdb-java',
+    '//lib:GRPC_1.3',
+    '//incubator/grpc-dependencies:grpc-core-repkg-' + GRPC_VER,
+    '//lib:grpc-protobuf-lite-' + GRPC_VER,
 ]
 
 TEST_DEPS = [

apps/openstacktelemetry/app/src/main/java/org/onosproject/openstacktelemetry/impl/GrpcTelemetryManager.java

@@ -0,0 +1,90 @@
+/*
+ * Copyright 2018-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.openstacktelemetry.impl;
+
+import io.grpc.ManagedChannel;
+import io.grpc.ManagedChannelBuilder;
+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.Service;
+import org.onosproject.openstacktelemetry.api.GrpcTelemetryAdminService;
+import org.onosproject.openstacktelemetry.api.config.GrpcTelemetryConfig;
+import org.onosproject.openstacktelemetry.api.config.TelemetryConfig;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+/**
+ * gRPC telemetry manager.
+ */
+@Component(immediate = true)
+@Service
+public class GrpcTelemetryManager implements GrpcTelemetryAdminService {
+
+    private final Logger log = LoggerFactory.getLogger(getClass());
+
+    private ManagedChannel channel = null;
+
+    @Activate
+    protected void activate() {
+        log.info("Started");
+    }
+
+    @Deactivate
+    protected void deactivate() {
+        stop();
+        log.info("Stopped");
+    }
+
+    @Override
+    public void start(TelemetryConfig config) {
+        if (channel != null) {
+            log.info("gRPC producer has already been started");
+            return;
+        }
+
+        GrpcTelemetryConfig grpcConfig = (GrpcTelemetryConfig) config;
+        channel = ManagedChannelBuilder
+                .forAddress(grpcConfig.address(), grpcConfig.port())
+                .maxInboundMessageSize(grpcConfig.maxInboundMsgSize())
+                .usePlaintext(grpcConfig.usePlaintext())
+                .build();
+
+        log.info("gRPC producer has Started");
+    }
+
+    @Override
+    public void stop() {
+        if (channel != null) {
+            channel.shutdown();
+            channel = null;
+        }
+
+        log.info("gRPC producer has Stopped");
+    }
+
+    @Override
+    public void restart(TelemetryConfig config) {
+        stop();
+        start(config);
+    }
+
+    @Override
+    public Object publish(Object record) {
+        // TODO: need to find a way to invoke gRPC endpoint using channel
+        return null;
+    }
+}

apps/openstacktelemetry/app/src/main/java/org/onosproject/openstacktelemetry/impl/InfluxDbTelemetryManager.java

@@ -0,0 +1,95 @@
+/*
+ * Copyright 2018-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.openstacktelemetry.impl;
+
+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.Service;
+import org.influxdb.InfluxDB;
+import org.influxdb.InfluxDBFactory;
+import org.onosproject.openstacktelemetry.api.InfluxDbTelemetryAdminService;
+import org.onosproject.openstacktelemetry.api.InfluxRecord;
+import org.onosproject.openstacktelemetry.api.config.InfluxDbTelemetryConfig;
+import org.onosproject.openstacktelemetry.api.config.TelemetryConfig;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+/**
+ * InfluxDB telemetry manager.
+ */
+@Component(immediate = true)
+@Service
+public class InfluxDbTelemetryManager implements InfluxDbTelemetryAdminService {
+
+    private final Logger log = LoggerFactory.getLogger(getClass());
+
+    private static final String PROTOCOL = "http";
+    private InfluxDB producer = null;
+
+    @Activate
+    protected void activate() {
+        log.info("Started");
+    }
+
+    @Deactivate
+    protected void deactivate() {
+        stop();
+        log.info("Stopped");
+    }
+
+    @Override
+    public void start(TelemetryConfig config) {
+        if (producer != null) {
+            log.info("InfluxDB producer has already been started");
+            return;
+        }
+
+        InfluxDbTelemetryConfig influxDbConfig = (InfluxDbTelemetryConfig) config;
+
+        StringBuilder influxDbServerBuilder = new StringBuilder();
+        influxDbServerBuilder.append(PROTOCOL);
+        influxDbServerBuilder.append(":");
+        influxDbServerBuilder.append("//");
+        influxDbServerBuilder.append(influxDbConfig.address());
+        influxDbServerBuilder.append(":");
+        influxDbServerBuilder.append(influxDbConfig.port());
+
+        producer = InfluxDBFactory.connect(influxDbServerBuilder.toString(),
+                influxDbConfig.username(), influxDbConfig.password());
+        log.info("InfluxDB producer has Started");
+    }
+
+    @Override
+    public void stop() {
+        if (producer != null) {
+            producer = null;
+        }
+
+        log.info("Kafka producer has Stopped");
+    }
+
+    @Override
+    public void restart(TelemetryConfig config) {
+        stop();
+        start(config);
+    }
+
+    @Override
+    public void publish(InfluxRecord<String, Object> record) {
+        // TODO: need to find a way to invoke InfluxDB endpoint using producer
+    }
+}

apps/openstacktelemetry/app/src/main/java/org/onosproject/openstacktelemetry/impl/KafkaTelemetryManager.java

@@ -0,0 +1,115 @@
+/*
+ * Copyright 2018-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.openstacktelemetry.impl;
+
+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.Service;
+import org.apache.kafka.clients.producer.KafkaProducer;
+import org.apache.kafka.clients.producer.Producer;
+import org.apache.kafka.clients.producer.ProducerRecord;
+import org.apache.kafka.clients.producer.RecordMetadata;
+import org.onosproject.openstacktelemetry.api.KafkaTelemetryAdminService;
+import org.onosproject.openstacktelemetry.api.config.KafkaTelemetryConfig;
+import org.onosproject.openstacktelemetry.api.config.TelemetryConfig;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import java.util.Properties;
+import java.util.concurrent.Future;
+
+/**
+ * Kafka telemetry manager.
+ */
+@Component(immediate = true)
+@Service
+public class KafkaTelemetryManager implements KafkaTelemetryAdminService {
+
+    private final Logger log = LoggerFactory.getLogger(getClass());
+
+    private static final String BOOTSTRAP_SERVERS = "bootstrap.servers";
+    private static final String RETRIES = "retries";
+    private static final String ACKS = "acks";
+    private static final String BATCH_SIZE = "batch.size";
+    private static final String LINGER_MS = "linger.ms";
+    private static final String MEMORY_BUFFER = "buffer.memory";
+    private static final String KEY_SERIALIZER = "key.serializer";
+    private static final String VALUE_SERIALIZER = "value.serializer";
+
+    private Producer<String, byte[]> producer = null;
+
+    @Activate
+    protected void activate() {
+        log.info("Started");
+    }
+
+    @Deactivate
+    protected void deactivate() {
+        stop();
+        log.info("Stopped");
+    }
+
+    @Override
+    public void start(TelemetryConfig config) {
+        if (producer != null) {
+            log.info("Kafka producer has already been started");
+            return;
+        }
+
+        KafkaTelemetryConfig kafkaConfig = (KafkaTelemetryConfig) config;
+
+        StringBuilder kafkaServerBuilder = new StringBuilder();
+        kafkaServerBuilder.append(kafkaConfig.address());
+        kafkaServerBuilder.append(":");
+        kafkaServerBuilder.append(kafkaConfig.port());
+
+        // Configure Kafka server properties
+        Properties prop = new Properties();
+        prop.put(BOOTSTRAP_SERVERS, kafkaServerBuilder.toString());
+        prop.put(RETRIES, kafkaConfig.retries());
+        prop.put(ACKS, kafkaConfig.requiredAcks());
+        prop.put(BATCH_SIZE, kafkaConfig.batchSize());
+        prop.put(LINGER_MS, kafkaConfig.lingerMs());
+        prop.put(MEMORY_BUFFER, kafkaConfig.memoryBuffer());
+        prop.put(KEY_SERIALIZER, kafkaConfig.keySerializer());
+        prop.put(VALUE_SERIALIZER, kafkaConfig.valueSerializer());
+
+        producer = new KafkaProducer<>(prop);
+        log.info("Kafka producer has Started");
+    }
+
+    @Override
+    public void stop() {
+        if (producer != null) {
+            producer.close();
+            producer = null;
+        }
+
+        log.info("Kafka producer has Stopped");
+    }
+
+    @Override
+    public void restart(TelemetryConfig config) {
+        stop();
+        start(config);
+    }
+
+    @Override
+    public Future<RecordMetadata> publish(ProducerRecord<String, byte[]> record) {
+        return producer.send(record);
+    }
+}

apps/openstacktelemetry/app/src/main/java/org/onosproject/openstacktelemetry/impl/RestTelemetryManager.java

@@ -0,0 +1,132 @@
+/*
+ * Copyright 2018-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.openstacktelemetry.impl;
+
+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.Service;
+import org.onosproject.openstacktelemetry.api.RestTelemetryAdminService;
+import org.onosproject.openstacktelemetry.api.config.RestTelemetryConfig;
+import org.onosproject.openstacktelemetry.api.config.TelemetryConfig;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import javax.ws.rs.client.Client;
+import javax.ws.rs.client.ClientBuilder;
+import javax.ws.rs.client.Entity;
+import javax.ws.rs.client.WebTarget;
+import javax.ws.rs.core.Response;
+
+/**
+ * REST telemetry manager.
+ */
+@Component(immediate = true)
+@Service
+public class RestTelemetryManager implements RestTelemetryAdminService {
+
+    private final Logger log = LoggerFactory.getLogger(getClass());
+
+    private static final String PROTOCOL = "http";
+    private static final String POST_METHOD = "POST";
+    private static final String GET_METHOD  = "GET";
+
+    private WebTarget target = null;
+    private RestTelemetryConfig restConfig = null;
+
+    @Activate
+    protected void activate() {
+        log.info("Started");
+    }
+
+    @Deactivate
+    protected void deactivate() {
+        stop();
+        log.info("Stopped");
+    }
+
+    @Override
+    public void start(TelemetryConfig config) {
+        if (target != null) {
+            log.info("REST producer has already been started");
+            return;
+        }
+
+        restConfig = (RestTelemetryConfig) config;
+
+        StringBuilder restServerBuilder = new StringBuilder();
+        restServerBuilder.append(PROTOCOL);
+        restServerBuilder.append(":");
+        restServerBuilder.append("//");
+        restServerBuilder.append(restConfig.address());
+        restServerBuilder.append(":");
+        restServerBuilder.append(restConfig.port());
+        restServerBuilder.append("/");
+
+        Client client = ClientBuilder.newBuilder().build();
+
+        target = client.target(restServerBuilder.toString()).path(restConfig.endpoint());
+
+        log.info("REST producer has Started");
+    }
+
+    @Override
+    public void stop() {
+        if (target != null) {
+            target = null;
+        }
+
+        log.info("REST producer has Stopped");
+    }
+
+    @Override
+    public void restart(TelemetryConfig config) {
+        stop();
+        start(config);
+    }
+
+    @Override
+    public Response publish(String endpoint, String method, String record) {
+        // TODO: need to find a way to invoke REST endpoint using target
+        return null;
+    }
+
+    @Override
+    public Response publish(String method, String record) {
+        switch (method) {
+            case POST_METHOD:
+                return target.request(restConfig.requestMediaType())
+                        .post(Entity.json(record));
+            case GET_METHOD:
+                return target.request(restConfig.requestMediaType()).get();
+            default:
+                return null;
+        }
+    }
+
+    @Override
+    public Response publish(String record) {
+        switch (restConfig.method()) {
+            case POST_METHOD:
+                return target.request(restConfig.requestMediaType())
+                        .post(Entity.json(record));
+            case GET_METHOD:
+                return target.request(restConfig.requestMediaType()).get();
+            default:
+                return null;
+        }
+    }
+}