yzhao244 commented on a change in pull request #434:
URL:
https://github.com/apache/incubator-eventmesh/pull/434#discussion_r670975624
##########
File path:
eventmesh-runtime/src/main/java/org/apache/eventmesh/runtime/admin/handler/CreateSubjectHandler.java
##########
@@ -0,0 +1,94 @@
+package org.apache.eventmesh.runtime.admin.handler;
+import java.io.IOException;
+import java.io.OutputStream;
+import java.util.ServiceLoader;
+
+import org.apache.commons.lang3.StringUtils;
+import org.apache.eventmesh.runtime.util.NetUtils;
+import org.apache.eventmesh.store.api.openschema.common.ServiceException;
+import org.apache.eventmesh.store.api.openschema.request.SubjectCreateRequest;
+import org.apache.eventmesh.store.api.openschema.response.SubjectResponse;
+import org.apache.eventmesh.store.api.openschema.service.SchemaService;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import com.fasterxml.jackson.databind.ObjectMapper;
+import com.sun.net.httpserver.HttpExchange;
+import com.sun.net.httpserver.HttpHandler;
+
+import com.fasterxml.jackson.databind.DeserializationFeature;
+import com.fasterxml.jackson.databind.SerializationFeature;
+import com.fasterxml.jackson.annotation.JsonInclude;
+
+public class CreateSubjectHandler implements HttpHandler {
+
+ private Logger logger =
LoggerFactory.getLogger(CreateSubjectHandler.class);
+
+ private static ObjectMapper jsonMapper;
+
+ static {
+ jsonMapper = new ObjectMapper();
+ jsonMapper.setSerializationInclusion(JsonInclude.Include.NON_NULL);
+ jsonMapper.disable(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES);
+ jsonMapper.disable(SerializationFeature.FAIL_ON_EMPTY_BEANS);
+ }
+
+ @Override
+ public void handle(HttpExchange httpExchange) throws IOException {
+ String result = "";
+ OutputStream out = httpExchange.getResponseBody();
+ try {
+ String params = NetUtils.parsePostBody(httpExchange);
+ SubjectCreateRequest subjectCreateRequest =
jsonMapper.readValue(params, SubjectCreateRequest.class);
+ String subject = subjectCreateRequest.getSubject();
+
+ if (StringUtils.isBlank(subject)) {
+ result = "Create subject failed. Parameter subject not found.";
+ logger.error(result);
+ out.write(result.getBytes());
+ return;
+ }
+ SchemaService schemaService = getSchemaService();
+ SubjectResponse subjectResponse =
schemaService.createSubject(subjectCreateRequest);
+ if (subjectResponse != null) {
+ logger.info("createTopic subject: {}", subject);
+ httpExchange.getResponseHeaders().add("Content-Type",
"appication/json");
+ httpExchange.sendResponseHeaders(200, 0);
+ result = jsonMapper.writeValueAsString(subjectResponse);
+ logger.info(result);
+ out.write(result.getBytes());
+ return;
+ } else {
+ httpExchange.sendResponseHeaders(500, 0);
+ result = String.format("create subject failed! Server side
error");
+ logger.error(result);
+ out.write(result.getBytes());
+ return;
+ }
+ } catch (ServiceException e) {
+ httpExchange.getResponseHeaders().add("Content-Type",
"appication/json");
+ httpExchange.sendResponseHeaders(500, 0);
+ result = jsonMapper.writeValueAsString(e.getErrorResponse());
+ logger.error(result);
+ out.write(result.getBytes());
+ return;
+ } finally {
+ if (out != null) {
+ try {
+ out.close();
+ } catch (IOException e) {
+ logger.warn("out close failed...", e);
+ }
+ }
+ }
+ }
+
+ private SchemaService getSchemaService() {
Review comment:
fixed
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