├── .gitignore
├── README.md
├── src
    └── main
    │   ├── proto
    │       └── CSTIRpcServer.proto
    │   └── java
    │       └── com
    │           └── github
    │               └── leafee98
    │                   └── CSTI
    │                       └── rpcserver
    │                           ├── App.java
    │                           └── rpc
    │                               └── RPCServerImpl.java
└── pom.xml


/.gitignore:
--------------------------------------------------------------------------------
1 | /target/
2 | /.idea/
3 | /target/
4 | /.vscode/
5 | /*.iml
6 | /.settings/
7 | /.project
8 | /.classpath
9 | 


--------------------------------------------------------------------------------
/README.md:
--------------------------------------------------------------------------------
 1 | # Class Schedule To Icalendar (RPCServer)
 2 | 
 3 | 借助于 [grpc](https://grpc.io) 实现的搭载 [class-schedule-to-icalendar-core](https://github.com/leafee98/class-schedule-to-icalendar-core) 的 RPC 服务, 将课程表到 ical 文件的过程实现到 RPC 调用
 4 | 
 5 | ## 接口调用
 6 | 
 7 | 详细请参见 [proto](/src/main/proto) 下的文件
 8 | 
 9 | ## 运行
10 | 
11 | 运行包含依赖的 jar 文件即可, 运行时参数如下
12 | 
13 | ```
14 | -l <listen port>       port to listen, default 8047
15 | ```
16 | 


--------------------------------------------------------------------------------
/src/main/proto/CSTIRpcServer.proto:
--------------------------------------------------------------------------------
 1 | 
 2 | syntax = "proto3";
 3 | 
 4 | option java_multiple_files = true;
 5 | option java_package = "com.github.leafee98.CSTI.rpcserver.rpc";
 6 | option java_outer_classname = "CSTIRpcServerProto";
 7 | 
 8 | package rpcserver;
 9 | 
10 | service CSTIRpcServer {
11 |   // generate ical with json configure
12 |   rpc jsonGenerate(ConfJson) returns (ResultIcal) {}
13 |   rpc tomlGenerate(ConfToml) returns (ResultIcal) {}
14 | }
15 | 
16 | message ConfJson {
17 |   string content = 1;
18 | }
19 | 
20 | message ConfToml {
21 |   string content = 1;
22 | }
23 | 
24 | message ResultIcal {
25 |   string content = 2;
26 | }
27 | 


--------------------------------------------------------------------------------
/src/main/java/com/github/leafee98/CSTI/rpcserver/App.java:
--------------------------------------------------------------------------------
 1 | package com.github.leafee98.CSTI.rpcserver;
 2 | 
 3 | import java.io.IOException;
 4 | 
 5 | import com.github.leafee98.CSTI.rpcserver.rpc.RPCServerImpl;
 6 | 
 7 | import org.slf4j.Logger;
 8 | import org.slf4j.LoggerFactory;
 9 | 
10 | public class App {
11 |     private static final Logger logger = LoggerFactory.getLogger(App.class);
12 | 
13 |     private RPCServerImpl server;
14 |     private int listenPort;
15 | 
16 |     private void initDefaultConfigure() {
17 |         this.listenPort = 8047;
18 |     }
19 | 
20 |     private void parseParameter(String[] args) {
21 |         for (int i = 0; i < args.length; i++) {
22 |             if (args[i].equals("-l")) {
23 |                 this.listenPort = Integer.parseInt(args[i + 1]);
24 |                 i += 1;
25 |             }
26 |         }
27 |     }
28 | 
29 |     private void logConfigure() {
30 |         logger.info("showing the configuration");
31 |         logger.info("configure: listenPort = {}", this.listenPort);
32 |     }
33 | 
34 |     private void startServer() throws IOException {
35 |         server = new RPCServerImpl(this.listenPort);
36 |         server.start();
37 |     }
38 | 
39 |     private void addShutdownHook() {
40 |         Runtime.getRuntime().addShutdownHook(new Thread(() -> {
41 |             // use system error stream to print log
42 |             // since logger is not available in shutdown hook
43 |             System.err.println("rpcserver stopping ...");
44 |             try {
45 |                 server.stop();
46 |             } catch (InterruptedException e) {
47 |                 System.err.println("error while shutting down");
48 |                 e.printStackTrace(System.err);
49 |             }
50 |             System.err.println("rpcserver shutdown");
51 |         }));
52 |     }
53 | 
54 |     private void blockUntilShutdown() throws InterruptedException {
55 |         server.blockUntilShutdown();
56 |     }
57 | 
58 |     public static void main(String[] args) throws IOException, InterruptedException {
59 |         App app = new App();
60 |         app.initDefaultConfigure();
61 |         app.parseParameter(args);
62 |         app.logConfigure();
63 | 
64 |         app.startServer();
65 |         app.addShutdownHook();
66 |         app.blockUntilShutdown();
67 |     }
68 | }
69 | 


--------------------------------------------------------------------------------
/src/main/java/com/github/leafee98/CSTI/rpcserver/rpc/RPCServerImpl.java:
--------------------------------------------------------------------------------
 1 | package com.github.leafee98.CSTI.rpcserver.rpc;
 2 | 
 3 | import com.github.leafee98.CSTI.core.bean.ScheduleObject;
 4 | import com.github.leafee98.CSTI.core.bean.loader.JSONLoader;
 5 | import com.github.leafee98.CSTI.core.generate.Generator;
 6 | import io.grpc.Server;
 7 | import io.grpc.ServerBuilder;
 8 | import io.grpc.Status;
 9 | import io.grpc.StatusRuntimeException;
10 | import io.grpc.protobuf.services.ProtoReflectionService;
11 | import io.grpc.stub.StreamObserver;
12 | import org.slf4j.Logger;
13 | import org.slf4j.LoggerFactory;
14 | 
15 | import java.io.IOException;
16 | import java.util.concurrent.TimeUnit;
17 | 
18 | public class RPCServerImpl {
19 |     private static final Logger logger = LoggerFactory.getLogger(RPCServerImpl.class);
20 | 
21 |     private final Server server;
22 | 
23 |     public void start() throws IOException {
24 |         logger.info("starting rpc server ...");
25 |         server.start();
26 |     }
27 | 
28 |     public void blockUntilShutdown() throws InterruptedException {
29 |         if (server != null) {
30 |             server.awaitTermination();
31 |         }
32 |     }
33 | 
34 |     public void stop() throws InterruptedException {
35 |         if (server != null) {
36 |             server.shutdown().awaitTermination(30, TimeUnit.SECONDS);
37 |         }
38 |     }
39 | 
40 |     public RPCServerImpl(int port) {
41 |         this.server = ServerBuilder.forPort(port)
42 |                 .addService(new RPCService())
43 |                 .addService(ProtoReflectionService.newInstance())
44 |                 .build();
45 |     }
46 | 
47 |     private static class RPCService extends CSTIRpcServerGrpc.CSTIRpcServerImplBase {
48 |         private final JSONLoader jsonLoader;
49 | 
50 |         public RPCService() {
51 |             this.jsonLoader = new JSONLoader();
52 |         }
53 | 
54 |         @Override
55 |         public void jsonGenerate(ConfJson request, StreamObserver<ResultIcal> responseObserver) {
56 |             try {
57 |                 String content = request.getContent();
58 |                 ResultIcal.Builder builder =  ResultIcal.newBuilder();
59 |                 ScheduleObject scheduleObject = jsonLoader.load(content);
60 |                 Generator generator = new Generator(scheduleObject);
61 |                 String generated = generator.generate().toString();
62 |                 builder.setContent(generated);
63 | 
64 |                 responseObserver.onNext(builder.build());
65 |                 responseObserver.onCompleted();
66 | 
67 |                 logger.info("handle rpc jsonGenerate success");
68 |             } catch (Exception e) {
69 |                 responseObserver.onError(new StatusRuntimeException(Status.ABORTED.withDescription(
70 |                         "error while transforming, maybe the request content format wrong.\n" +
71 |                                 "exception detail: " + e.toString())));
72 | 
73 |                 logger.error("handle rpc jsonGenerate failed, exception detail follow:");
74 |                 logger.error(e.toString());
75 |             }
76 |         }
77 | 
78 |         @Override
79 |         public void tomlGenerate(ConfToml request, StreamObserver<ResultIcal> responseObserver) {
80 |             String errMsg = "not implemented rpc tomlGenerate called, respond error";
81 |             logger.warn(errMsg);
82 |             responseObserver.onError(new Exception(errMsg));
83 |         }
84 |     }
85 | }
86 | 


--------------------------------------------------------------------------------
/pom.xml:
--------------------------------------------------------------------------------
  1 | <?xml version="1.0" encoding="UTF-8"?>
  2 | <project xmlns="http://maven.apache.org/POM/4.0.0"
  3 |          xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  4 |          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
  5 |     <modelVersion>4.0.0</modelVersion>
  6 | 
  7 |     <groupId>com.github.leafee98</groupId>
  8 |     <artifactId>class-schedule-to-icalendar-rpcserver</artifactId>
  9 |     <version>v0.3.0</version>
 10 | 
 11 |     <properties>
 12 |         <maven.compiler.source>11</maven.compiler.source>
 13 |         <maven.compiler.target>11</maven.compiler.target>
 14 |         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
 15 |     </properties>
 16 | 
 17 |     <repositories>
 18 |         <repository>
 19 |             <id>jitpack.io</id>
 20 |             <url>https://jitpack.io</url>
 21 |         </repository>
 22 |     </repositories>
 23 | 
 24 | 
 25 |     <dependencies>
 26 |         <dependency>
 27 |             <groupId>com.github.leafee98</groupId>
 28 |             <artifactId>class-schedule-to-icalendar-core</artifactId>
 29 |             <version>v0.3.0</version>
 30 |         </dependency>
 31 | 
 32 |         <dependency>
 33 |             <groupId>org.slf4j</groupId>
 34 |             <artifactId>slf4j-api</artifactId>
 35 |             <version>2.0.0-alpha1</version>
 36 |         </dependency>
 37 |         <dependency>
 38 |             <groupId>org.slf4j</groupId>
 39 |             <artifactId>slf4j-jdk14</artifactId>
 40 |             <version>2.0.0-alpha1</version>
 41 |         </dependency>
 42 | 
 43 |         <dependency>
 44 |             <groupId>io.grpc</groupId>
 45 |             <artifactId>grpc-services</artifactId>
 46 |             <version>1.35.0</version>
 47 |         </dependency>
 48 |         <dependency>
 49 |             <groupId>io.grpc</groupId>
 50 |             <artifactId>grpc-netty-shaded</artifactId>
 51 |             <version>1.35.0</version>
 52 |         </dependency>
 53 |         <dependency>
 54 |             <groupId>io.grpc</groupId>
 55 |             <artifactId>grpc-protobuf</artifactId>
 56 |             <version>1.35.0</version>
 57 |         </dependency>
 58 |         <dependency>
 59 |             <groupId>io.grpc</groupId>
 60 |             <artifactId>grpc-stub</artifactId>
 61 |             <version>1.35.0</version>
 62 |         </dependency>
 63 |         <dependency> <!-- necessary for Java 9+ -->
 64 |             <groupId>org.apache.tomcat</groupId>
 65 |             <artifactId>annotations-api</artifactId>
 66 |             <version>6.0.53</version>
 67 |             <scope>provided</scope>
 68 |         </dependency>
 69 |     </dependencies>
 70 | 
 71 |     <build>
 72 |         <extensions>
 73 |             <extension>
 74 |                 <groupId>kr.motd.maven</groupId>
 75 |                 <artifactId>os-maven-plugin</artifactId>
 76 |                 <version>1.6.2</version>
 77 |             </extension>
 78 |         </extensions>
 79 | 
 80 |         <plugins>
 81 |             <plugin>
 82 |                 <groupId>org.xolstice.maven.plugins</groupId>
 83 |                 <artifactId>protobuf-maven-plugin</artifactId>
 84 |                 <version>0.6.1</version>
 85 |                 <configuration>
 86 |                     <protocArtifact>com.google.protobuf:protoc:3.12.0:exe:${os.detected.classifier}</protocArtifact>
 87 |                     <pluginId>grpc-java</pluginId>
 88 |                     <pluginArtifact>io.grpc:protoc-gen-grpc-java:1.35.0:exe:${os.detected.classifier}</pluginArtifact>
 89 |                 </configuration>
 90 |                 <executions>
 91 |                     <execution>
 92 |                         <goals>
 93 |                             <goal>compile</goal>
 94 |                             <goal>compile-custom</goal>
 95 |                         </goals>
 96 |                     </execution>
 97 |                 </executions>
 98 |             </plugin>
 99 | 
100 |             <plugin>
101 |                 <artifactId>maven-jar-plugin</artifactId>
102 |                 <version>3.2.0</version>
103 |                 <configuration>
104 |                     <archive>
105 |                         <manifest>
106 |                             <mainClass>com.github.leafee98.CSTI.rpcserver.App</mainClass>
107 |                         </manifest>
108 |                     </archive>
109 |                 </configuration>
110 |             </plugin>
111 | 
112 |             <plugin>
113 |                 <artifactId>maven-assembly-plugin</artifactId>
114 |                 <version>3.3.0</version>
115 |                 <configuration>
116 |                     <archive>
117 |                         <manifest>
118 |                             <mainClass>com.github.leafee98.CSTI.rpcserver.App</mainClass>
119 |                         </manifest>
120 |                     </archive>
121 |                     <descriptorRefs>
122 |                         <descriptorRef>jar-with-dependencies</descriptorRef>
123 |                     </descriptorRefs>
124 |                 </configuration>
125 |                 <executions>
126 |                     <execution>
127 |                         <id>make-assembly</id>
128 |                         <phase>package</phase>
129 |                         <goals>
130 |                             <goal>single</goal>
131 |                         </goals>
132 |                     </execution>
133 |                 </executions>
134 |             </plugin>
135 |         </plugins>
136 |     </build>
137 | 
138 | </project>
139 | 


--------------------------------------------------------------------------------