클라우드 컴퓨팅에 Java 기능 패키지 관리 및 종속성 적용

<dependencies>
  <!-- 引入必要的依赖关系 -->
  <dependency>
    <groupId>com.google.cloud</groupId>
    <artifactId>google-cloud-functions-framework-api</artifactId>
    <version>1.0.12</version>
  </dependency>

  <dependency>
    <groupId>com.google.cloud</groupId>
    <artifactId>google-cloud-functions-invoker</artifactId>
    <version>0.7.0</version>
  </dependency>
</dependencies>

mvn clean install -DskipTests

// Gradle 构建文件中
functions {
  all {
    runtime = 'java11'
    env = ['FUNCTIONS_SIGNATURE_TYPE': 'cloudevent']
  }
}

dependencies {
  implementation 'com.google.cloud:google-cloud-functions-framework-api:1.0.12'
  implementation 'com.google.cloud:google-cloud-functions-invoker:0.7.0'
}

import com.google.cloud.functions.HttpFunction;
import com.google.cloud.functions.HttpRequest;
import com.google.cloud.functions.HttpResponse;
import com.google.cloud.logging.LogEntry;
import com.google.cloud.logging.Logging;
import com.google.cloud.logging.Payload.StringPayload;
import com.google.cloud.logging.Severity;
import com.google.gson.Gson;

import java.io.BufferedWriter;
import java.io.IOException;
import java.nio.charset.StandardCharsets;
import java.time.OffsetDateTime;
import java.util.logging.Logger;

public class LoggingFunction implements HttpFunction {

  private static final Logger logger = Logger.getLogger(LoggingFunction.class.getName());

  private final Logging logging = Logging.getLogging();

  // HTTP POST 请求的句柄
  @Override
  public void service(HttpRequest request, HttpResponse response)
      throws IOException {
    // 从请求中提取日志记录数据
    String requestBody = request.getReader().lines().collect(Collectors.joining());
    NameValueFunctionLoggingEntryDTO requestData = new Gson().fromJson(requestBody, NameValueFunctionLoggingEntryDTO.class);

    // 构建日志记录项
    LogEntry entry = LogEntry.newBuilder(new StringPayload(requestData.getData()))
        .setSeverity(Severity.INFO)
        .setLogName("my-log")
        .setResource(new LogEntry.Resource.Builder("gae_app").build())
        .build();

    // 发送日志记录项
    logging.write(entry);

    response.getWriter().write(StandardCharsets.UTF_8.name());
  }

  // 用于解析请求正文的 DTO
  private static class NameValueFunctionLoggingEntryDTO {
    String data;
  }
}