[ISSUE apache#4618] Add HTTP Source Connector

eventmesh-connectors/eventmesh-connector-http/build.gradle

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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.
+ */
+
+dependencies {
+    api project(":eventmesh-openconnect:eventmesh-openconnect-java")
+    implementation project(":eventmesh-common")
+    implementation 'io.cloudevents:cloudevents-http-vertx:2.3.0'
+    implementation 'io.vertx:vertx-web:4.4.6'
+
+    testImplementation "org.apache.httpcomponents:httpclient"
+    compileOnly 'org.projectlombok:lombok'
+    annotationProcessor 'org.projectlombok:lombok'
+}

eventmesh-connectors/eventmesh-connector-http/gradle.properties

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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.
+#
+pluginType=connector
+pluginName=http

eventmesh-connectors/eventmesh-connector-http/src/main/java/org/apache/eventmesh/connector/http/config/HttpServerConfig.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.eventmesh.connector.http.config;
+
+import org.apache.eventmesh.openconnect.api.config.Config;
+
+import lombok.Data;
+import lombok.EqualsAndHashCode;
+
+@Data
+@EqualsAndHashCode(callSuper = true)
+public class HttpServerConfig extends Config {
+
+    private boolean sourceEnable;
+
+    private boolean sinkEnable;
+}

eventmesh-connectors/eventmesh-connector-http/src/main/java/org/apache/eventmesh/connector/http/server/HttpConnectServer.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.eventmesh.connector.http.server;
+
+import org.apache.eventmesh.connector.http.config.HttpServerConfig;
+import org.apache.eventmesh.connector.http.source.connector.HttpSourceConnector;
+import org.apache.eventmesh.openconnect.Application;
+import org.apache.eventmesh.openconnect.util.ConfigUtil;
+
+public class HttpConnectServer {
+
+    public static void main(String[] args) throws Exception {
+        HttpServerConfig serverConfig = ConfigUtil.parse(HttpServerConfig.class, "server-config.yml");
+
+        if (serverConfig.isSourceEnable()) {
+            Application httpSourceApp = new Application();
+            httpSourceApp.run(HttpSourceConnector.class);
+        }
+
+        if (serverConfig.isSinkEnable()) {
+            // TODO support sink connector
+        }
+    }
+
+}

eventmesh-connectors/eventmesh-connector-http/src/main/java/org/apache/eventmesh/connector/http/source/config/HttpSourceConfig.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.eventmesh.connector.http.source.config;
+
+import org.apache.eventmesh.openconnect.api.config.SourceConfig;
+
+import lombok.Data;
+import lombok.EqualsAndHashCode;
+
+@Data
+@EqualsAndHashCode(callSuper = true)
+public class HttpSourceConfig extends SourceConfig {
+
+    public SourceConnectorConfig connectorConfig;
+}

eventmesh-connectors/eventmesh-connector-http/src/main/java/org/apache/eventmesh/connector/http/source/config/SourceConnectorConfig.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.eventmesh.connector.http.source.config;
+
+import lombok.Data;
+
+@Data
+public class SourceConnectorConfig {
+
+    private String connectorName;
+
+    private String path;
+
+    private int port;
+
+    private int idleTimeout;
+}

eventmesh-connectors/eventmesh-connector-http/src/main/java/org/apache/eventmesh/connector/http/source/connector/HttpSourceConnector.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.eventmesh.connector.http.source.connector;
+
+import org.apache.eventmesh.common.exception.EventMeshException;
+import org.apache.eventmesh.connector.http.source.config.HttpSourceConfig;
+import org.apache.eventmesh.openconnect.api.config.Config;
+import org.apache.eventmesh.openconnect.api.connector.ConnectorContext;
+import org.apache.eventmesh.openconnect.api.connector.SourceConnectorContext;
+import org.apache.eventmesh.openconnect.api.source.Source;
+import org.apache.eventmesh.openconnect.offsetmgmt.api.data.ConnectRecord;
+import org.apache.eventmesh.openconnect.util.CloudEventUtil;
+
+import java.util.ArrayList;
+import java.util.List;
+import java.util.concurrent.BlockingQueue;
+import java.util.concurrent.LinkedBlockingQueue;
+import java.util.concurrent.TimeUnit;
+
+import io.cloudevents.CloudEvent;
+import io.cloudevents.core.message.MessageReader;
+import io.cloudevents.http.vertx.VertxMessageFactory;
+import io.netty.handler.codec.http.HttpResponseStatus;
+import io.vertx.core.Vertx;
+import io.vertx.core.http.HttpMethod;
+import io.vertx.core.http.HttpServer;
+import io.vertx.core.http.HttpServerOptions;
+import io.vertx.ext.web.Router;
+import io.vertx.ext.web.handler.LoggerHandler;
+
+import lombok.extern.slf4j.Slf4j;
+
+@Slf4j
+public class HttpSourceConnector implements Source {
+
+    private static final int DEFAULT_BATCH_SIZE = 10;
+
+    private HttpSourceConfig sourceConfig;
+    private BlockingQueue<CloudEvent> queue;
+    private HttpServer server;
+
+    @Override
+    public Class<? extends Config> configClass() {
+        return HttpSourceConfig.class;
+    }
+
+    @Override
+    public void init(Config config) throws Exception {
+        this.sourceConfig = (HttpSourceConfig) config;
+        doInit();
+    }
+
+    @Override
+    public void init(ConnectorContext connectorContext) throws Exception {
+        SourceConnectorContext sourceConnectorContext = (SourceConnectorContext) connectorContext;
+        this.sourceConfig = (HttpSourceConfig) sourceConnectorContext.getSourceConfig();
+        doInit();
+    }
+
+    private void doInit() throws Exception {
+        this.queue = new LinkedBlockingQueue<>(1000);
+
+        final Vertx vertx = Vertx.vertx();
+        final Router router = Router.router(vertx);
+        router.route()
+            .path(this.sourceConfig.connectorConfig.getPath())
+            .method(HttpMethod.POST)
+            .handler(LoggerHandler.create())
+            .handler(ctx -> {
+                VertxMessageFactory.createReader(ctx.request())
+                    .map(MessageReader::toEvent)
+                    .onSuccess(event -> {
+                        queue.add(event);
+                        log.info("[HttpSourceConnector] Succeed to convert payload into CloudEvent. StatusCode={}", HttpResponseStatus.OK.code());
+                        ctx.response().setStatusCode(HttpResponseStatus.OK.code()).end();
+                    })
+                    .onFailure(t -> {
+                        log.error("[HttpSourceConnector] Malformed request. StatusCode={}", HttpResponseStatus.BAD_REQUEST.code(), t);
+                        ctx.response().setStatusCode(HttpResponseStatus.BAD_REQUEST.code()).setStatusMessage(t.getMessage()).end();
+                    });
+            });
+        this.server = vertx.createHttpServer(new HttpServerOptions()
+            .setPort(this.sourceConfig.connectorConfig.getPort())
+            .setIdleTimeout(this.sourceConfig.connectorConfig.getIdleTimeout())).requestHandler(router);
+    }
+
+    @Override
+    public void start() throws Exception {
+        Throwable t = this.server.listen().cause();
+        if (t != null) {
+            log.error("[HttpSourceConnector] Failed to start Vertx server.", t);
+            throw new EventMeshException("Failed to start Vertx server");
+        }
+    }
+
+    @Override
+    public void commit(ConnectRecord record) {
+
+    }
+
+    @Override
+    public String name() {
+        return this.sourceConfig.getConnectorConfig().getConnectorName();
+    }
+
+    @Override
+    public void stop() throws Exception {
+        Throwable t = this.server.close().cause();
+        if (t != null) {
+            log.error("[HttpSourceConnector] Failed to stop Vertx server.", t);
+            throw new EventMeshException("Failed to stop Vertx server");
+        }
+    }
+
+    @Override
+    public List<ConnectRecord> poll() {
+        List<ConnectRecord> connectRecords = new ArrayList<>(DEFAULT_BATCH_SIZE);
+        for (int i = 0; i < DEFAULT_BATCH_SIZE; i++) {
+            try {
+                CloudEvent event = queue.poll(3, TimeUnit.SECONDS);
+                if (event == null) {
+                    break;
+                }
+                connectRecords.add(CloudEventUtil.convertEventToRecord(event));
+            } catch (InterruptedException e) {
+                break;
+            }
+        }
+        return connectRecords;
+    }
+
+}

eventmesh-connectors/eventmesh-connector-http/src/main/resources/server-config.yml

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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.
+#
+
+sourceEnable: true
+sinkEnable: false

eventmesh-connectors/eventmesh-connector-http/src/main/resources/source-config.yml

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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.
+#
+
+pubSubConfig:
+    meshAddress: 127.0.0.1:10000
+    subject: TopicTest
+    idc: FT
+    env: PRD
+    group: httpSource
+    appId: 5032
+    userName: httpSourceUser
+    passWord: httpmqPassWord
+connectorConfig:
+    connectorName: httpSource
+    path: /test
+    port: 3755
+    idleTimeout: 5