Test shaded driver core in OSGi environement

osgi-tests/src/main/java/com/datastax/oss/driver/api/osgi/service/TweetMessage.java

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+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you 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 com.datastax.oss.driver.api.osgi.service;
+
+import edu.umd.cs.findbugs.annotations.NonNull;
+import java.time.Instant;
+import java.util.Objects;
+
+public class TweetMessage {
+
+  private String sender;
+
+  private Instant timestamp;
+
+  private String body;
+
+  public TweetMessage() {}
+
+  public TweetMessage(@NonNull String sender, @NonNull Instant timestamp, @NonNull String body) {
+    this.sender = sender;
+    this.timestamp = timestamp;
+    this.body = body;
+  }
+
+  public Instant getTimestamp() {
+    return timestamp;
+  }
+
+  public void setTimestamp(Instant timestamp) {
+    this.timestamp = timestamp;
+  }
+
+  public String getSender() {
+    return sender;
+  }
+
+  public void setSender(String sender) {
+    this.sender = sender;
+  }
+
+  public String getBody() {
+    return body;
+  }
+
+  public void setBody(String body) {
+    this.body = body;
+  }
+
+  @Override
+  public boolean equals(Object o) {
+    if (this == o) {
+      return true;
+    }
+    if (!(o instanceof TweetMessage)) {
+      return false;
+    }
+    TweetMessage that = (TweetMessage) o;
+    return Objects.equals(sender, that.sender)
+        && Objects.equals(timestamp, that.timestamp)
+        && Objects.equals(body, that.body);
+  }
+
+  @Override
+  public int hashCode() {
+    return Objects.hash(sender, timestamp, body);
+  }
+}

osgi-tests/src/main/java/com/datastax/oss/driver/api/osgi/service/TweetService.java

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+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you 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 com.datastax.oss.driver.api.osgi.service;
+
+public interface TweetService {
+
+  /**
+   * Stores the given tweet message.
+   *
+   * @param message Message to store.
+   */
+  void sendMessage(TweetMessage message);
+}

osgi-tests/src/main/java/com/datastax/oss/driver/internal/osgi/BaseActivator.java

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+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you 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 com.datastax.oss.driver.internal.osgi;
+
+import com.datastax.dse.driver.api.core.config.DseDriverOption;
+import com.datastax.dse.driver.internal.core.graph.GraphProtocol;
+import com.datastax.oss.driver.api.core.CqlIdentifier;
+import com.datastax.oss.driver.api.core.CqlSession;
+import com.datastax.oss.driver.api.core.CqlSessionBuilder;
+import com.datastax.oss.driver.api.core.config.DefaultDriverOption;
+import com.datastax.oss.driver.api.core.config.DriverConfigLoader;
+import com.datastax.oss.driver.api.core.config.ProgrammaticDriverConfigLoaderBuilder;
+import java.net.InetSocketAddress;
+import java.util.List;
+import java.util.stream.Collectors;
+import java.util.stream.Stream;
+import org.osgi.framework.Bundle;
+import org.osgi.framework.BundleActivator;
+import org.osgi.framework.BundleContext;
+import org.osgi.framework.wiring.BundleWiring;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+public abstract class BaseActivator implements BundleActivator {
+
+  private static final Logger LOGGER = LoggerFactory.getLogger(TweetActivator.class);
+
+  protected CqlSession session;
+  protected CqlIdentifier keyspace;
+  protected String graphName;
+
+  @Override
+  public void start(BundleContext context) {
+    buildSession(context);
+    registerService(context);
+  }
+
+  private void buildSession(BundleContext context) {
+    Bundle bundle = context.getBundle();
+    BundleWiring bundleWiring = bundle.adapt(BundleWiring.class);
+    ClassLoader classLoader = bundleWiring.getClassLoader();
+
+    LOGGER.info("Application class loader: {}", classLoader);
+
+    // Use the application bundle class loader to load classes by reflection when
+    // they are located in the application bundle. This is not strictly required
+    // as the driver has a "Dynamic-Import:*" directive which makes it capable
+    // of loading classes outside its bundle.
+    CqlSessionBuilder builder = CqlSession.builder().withClassLoader(classLoader);
+
+    // Use the application bundle class loader to load configuration resources located
+    // in the application bundle. This is required, otherwise these resources will
+    // not be found.
+    ProgrammaticDriverConfigLoaderBuilder configLoaderBuilder =
+        DriverConfigLoader.programmaticBuilder(classLoader);
+
+    String contactPointsStr = context.getProperty("cassandra.contactpoints");
+    if (contactPointsStr == null) {
+      contactPointsStr = "127.0.0.1";
+    }
+    LOGGER.info("Contact points: {}", contactPointsStr);
+
+    String portStr = context.getProperty("cassandra.port");
+    if (portStr == null) {
+      portStr = "9042";
+    }
+    LOGGER.info("Port: {}", portStr);
+    int port = Integer.parseInt(portStr);
+
+    List<InetSocketAddress> contactPoints =
+        Stream.of(contactPointsStr.split(","))
+            .map((String host) -> InetSocketAddress.createUnresolved(host, port))
+            .collect(Collectors.toList());
+    builder.addContactPoints(contactPoints);
+
+    String keyspaceStr = context.getProperty("cassandra.keyspace");
+    if (keyspaceStr == null) {
+      keyspaceStr = "mailbox";
+    }
+    LOGGER.info("Keyspace: {}", keyspaceStr);
+    keyspace = CqlIdentifier.fromCql(keyspaceStr);
+
+    String lbp = context.getProperty("cassandra.lbp");
+    if (lbp != null) {
+      LOGGER.info("Custom LBP: " + lbp);
+      configLoaderBuilder.withString(DefaultDriverOption.LOAD_BALANCING_POLICY_CLASS, lbp);
+    } else {
+      LOGGER.info("Custom LBP: NO");
+    }
+
+    String datacenter = context.getProperty("cassandra.datacenter");
+    if (datacenter != null) {
+      LOGGER.info("Custom datacenter: " + datacenter);
+      configLoaderBuilder.withString(
+          DefaultDriverOption.LOAD_BALANCING_LOCAL_DATACENTER, datacenter);
+    } else {
+      LOGGER.info("Custom datacenter: NO");
+    }
+
+    String compression = context.getProperty("cassandra.compression");
+    if (compression != null) {
+      LOGGER.info("Compression: {}", compression);
+      configLoaderBuilder.withString(DefaultDriverOption.PROTOCOL_COMPRESSION, compression);
+    } else {
+      LOGGER.info("Compression: NONE");
+    }
+
+    graphName = context.getProperty("cassandra.graph.name");
+    if (graphName != null) {
+      LOGGER.info("Graph name: {}", graphName);
+      configLoaderBuilder.withString(DseDriverOption.GRAPH_NAME, graphName);
+      configLoaderBuilder.withString(
+          DseDriverOption.GRAPH_SUB_PROTOCOL, GraphProtocol.GRAPH_BINARY_1_0.toInternalCode());
+    } else {
+      LOGGER.info("Graph: NONE");
+    }
+
+    builder.withConfigLoader(configLoaderBuilder.build());
+
+    LOGGER.info("Initializing session");
+    session = builder.build();
+    LOGGER.info("Session initialized");
+  }
+
+  @Override
+  public void stop(BundleContext context) {
+    if (session != null) {
+      LOGGER.info("Closing session");
+      session.close();
+      session = null;
+      LOGGER.info("Session closed");
+    }
+  }
+
+  protected abstract void registerService(BundleContext context);
+}