[RIP-37] Add new APIs for producer

apis/pom.xml

@@ -0,0 +1,39 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+  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.
+  -->
+
+<project xmlns="http://maven.apache.org/POM/4.0.0"
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <parent>
+        <artifactId>rocketmq-all</artifactId>
+        <groupId>org.apache.rocketmq</groupId>
+        <version>5.0.0-BETA-SNAPSHOT</version>
+    </parent>
+    <modelVersion>4.0.0</modelVersion>
+    <packaging>jar</packaging>
+    <artifactId>rocketmq-apis</artifactId>
+    <name>rocketmq-apis ${project.version}</name>
+
+    <dependencies>
+        <dependency>
+            <groupId>com.google.guava</groupId>
+            <artifactId>guava</artifactId>
+            <scope>provided</scope>
+        </dependency>
+    </dependencies>
+</project>

apis/src/main/java/org/apache/rocketmq/apis/ClientConfiguration.java

@@ -0,0 +1,61 @@
+/*
+ * 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 org.apache.rocketmq.apis;
+
+import static com.google.common.base.Preconditions.checkNotNull;
+
+import java.time.Duration;
+
+/**
+ * Common client configuration.
+ */
+public class ClientConfiguration {
+    private final String endpoints;
+    private final SessionCredentialsProvider sessionCredentialsProvider;
+    private final Duration requestTimeout;
+    private final boolean enableTracing;
+
+    public static ClientConfigurationBuilder newBuilder() {
+        return new ClientConfigurationBuilder();
+    }
+
+    public ClientConfiguration(String endpoints, SessionCredentialsProvider sessionCredentialsProvider,
+        Duration requestTimeout, boolean enableTracing) {
+        this.endpoints = checkNotNull(endpoints, "endpoints should not be null");
+        this.sessionCredentialsProvider = checkNotNull(sessionCredentialsProvider, "credentialsProvider should not be"
+            + " null");
+        this.requestTimeout = checkNotNull(requestTimeout, "requestTimeout should be not null");
+        this.enableTracing = enableTracing;
+    }
+
+    public String getEndpoints() {
+        return endpoints;
+    }
+
+    public SessionCredentialsProvider getCredentialsProvider() {
+        return sessionCredentialsProvider;
+    }
+
+    public Duration getRequestTimeout() {
+        return requestTimeout;
+    }
+
+    public boolean isEnableTracing() {
+        return enableTracing;
+    }
+}

apis/src/main/java/org/apache/rocketmq/apis/ClientConfigurationBuilder.java

@@ -0,0 +1,72 @@
+/*
+ * 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 org.apache.rocketmq.apis;
+
+import static com.google.common.base.Preconditions.checkNotNull;
+
+import java.time.Duration;
+
+/**
+ * Builder to set {@link ClientConfiguration}.
+ */
+public class ClientConfigurationBuilder {
+    private String endpoints;
+    private SessionCredentialsProvider sessionCredentialsProvider;
+    private Duration requestTimeout;
+    private boolean enableTracing;
+
+    /**
+     * Configure the endpoints with which the SDK should communicate.
+     *
+     * <p>Endpoints here means address of service, complying with the following scheme(part square brackets is
+     * optional).
+     * <p>1. DNS scheme(default): dns:host[:port], host is the host to resolve via DNS, port is the port to return
+     * for each address. If not specified, 443 is used.
+     * <p>2. ipv4 scheme: ipv4:address:port[,address:port,...]
+     * <p>3. ipv6 scheme: ipv6:address:port[,address:port,...]
+     * <p>4. http/https scheme: http|https://host[:port], similar to DNS scheme, if port not specified, 443 is used.
+     *
+     * @param endpoints address of service.
+     * @return the client configuration builder instance.
+     */
+    public ClientConfigurationBuilder setEndpoints(String endpoints) {
+        checkNotNull(endpoints, "endpoints should not be not null");
+        this.endpoints = endpoints;
+        return this;
+    }
+
+    public ClientConfigurationBuilder setCredentialProvider(SessionCredentialsProvider sessionCredentialsProvider) {
+        this.sessionCredentialsProvider = checkNotNull(sessionCredentialsProvider, "credentialsProvider should not be "
+            + "null");
+        return this;
+    }
+
+    public ClientConfigurationBuilder setRequestTimeout(Duration requestTimeout) {
+        this.requestTimeout = checkNotNull(requestTimeout, "requestTimeout should not be not null");
+        return this;
+    }
+
+    public ClientConfigurationBuilder enableTracing(boolean enableTracing) {
+        this.enableTracing = enableTracing;
+        return this;
+    }
+
+    public ClientConfiguration build() {
+        return new ClientConfiguration(endpoints, sessionCredentialsProvider, requestTimeout, enableTracing);
+    }
+}

apis/src/main/java/org/apache/rocketmq/apis/ClientServiceProvider.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 org.apache.rocketmq.apis;
+
+import java.util.Iterator;
+import java.util.ServiceLoader;
+import org.apache.rocketmq.apis.message.MessageBuilder;
+import org.apache.rocketmq.apis.producer.ProducerBuilder;
+
+/**
+ * Service provider to seek client, which load client according to
+ * <a href="https://en.wikipedia.org/wiki/Service_provider_interface">Java SPI mechanism</a>.
+ */
+public interface ClientServiceProvider {
+    static ClientServiceProvider loadService() {
+        final ServiceLoader<ClientServiceProvider> loaders = ServiceLoader.load(ClientServiceProvider.class);
+        final Iterator<ClientServiceProvider> iterators = loaders.iterator();
+        if (iterators.hasNext()) {
+            return iterators.next();
+        }
+        throw new UnsupportedOperationException("Client service provider not found");
+    }
+
+    /**
+     * Get the producer builder by current provider.
+     *
+     * @return the producer builder instance.
+     */
+    ProducerBuilder newProducerBuilder();
+
+    /**
+     * Get the message builder by current provider.
+     *
+     * @return the message builder instance.
+     */
+    MessageBuilder newMessageBuilder();
+}

apis/src/main/java/org/apache/rocketmq/apis/MessageQueue.java

@@ -0,0 +1,24 @@
+/*
+ * 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 org.apache.rocketmq.apis;
+
+public interface MessageQueue {
+    String getTopic();
+
+    String getId();
+}

apis/src/main/java/org/apache/rocketmq/apis/SessionCredentials.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 org.apache.rocketmq.apis;
+
+import static com.google.common.base.Preconditions.checkNotNull;
+
+import java.util.Optional;
+
+/**
+ * Session credentials used in service authentications.
+ */
+public class SessionCredentials {
+    private final String accessKey;
+    private final String accessSecret;
+    private final String securityToken;
+
+    public SessionCredentials(String accessKey, String accessSecret, String securityToken) {
+        this.accessKey = checkNotNull(accessKey, "accessKey should not be null");
+        this.accessSecret = checkNotNull(accessSecret, "accessSecret should not be null");
+        this.securityToken = checkNotNull(securityToken, "securityToken should not be null");
+    }
+
+    public SessionCredentials(String accessKey, String accessSecret) {
+        this.accessKey = checkNotNull(accessKey, "accessKey should not be null");
+        this.accessSecret = checkNotNull(accessSecret, "accessSecret should not be null");
+        this.securityToken = null;
+    }
+
+    public String getAccessKey() {
+        return accessKey;
+    }
+
+    public String getAccessSecret() {
+        return accessSecret;
+    }
+
+    public Optional<String> getSecurityToken() {
+        if (null == securityToken) {
+            return Optional.empty();
+        }
+        return Optional.of(securityToken);
+    }
+}

apis/src/main/java/org/apache/rocketmq/apis/SessionCredentialsProvider.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 org.apache.rocketmq.apis;
+
+/**
+ * Abstract provider to provide {@link SessionCredentials}.
+ */
+public interface SessionCredentialsProvider {
+    /**
+     * Get the provided credentials.
+     *
+     * @return provided credentials.
+     */
+    SessionCredentials getCredentials();
+}

apis/src/main/java/org/apache/rocketmq/apis/StaticSessionCredentialsProvider.java

@@ -0,0 +1,35 @@
+/*
+ * 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 org.apache.rocketmq.apis;
+
+public class StaticSessionCredentialsProvider implements SessionCredentialsProvider {
+    private final SessionCredentials credentials;
+
+    public StaticSessionCredentialsProvider(String accessKey, String accessSecret) {
+        this.credentials = new SessionCredentials(accessKey, accessSecret);
+    }
+
+    public StaticSessionCredentialsProvider(String accessKey, String accessSecret, String securityToken) {
+        this.credentials = new SessionCredentials(accessKey, accessSecret, securityToken);
+    }
+
+    @Override
+    public SessionCredentials getCredentials() {
+        return credentials;
+    }
+}