Merge pull request 'feature/1876' (#1) from feature/1876 into master

Reviewed-on: #1

build.gradle

@@ -1,7 +1,7 @@
 plugins {
     id 'java'
-    id 'org.springframework.boot' version '2.7.4'
+    id 'org.springframework.boot' version '3.2.0'
-    id 'io.spring.dependency-management' version '1.0.14.RELEASE'
+    id 'io.spring.dependency-management' version '1.1.4'
 }
 
 group 'org.example'
@@ -22,7 +22,8 @@ dependencies {
     compileOnly 'org.projectlombok:lombok'
     annotationProcessor 'org.projectlombok:lombok'
     implementation group: 'eu.chargetime.ocpp', name: 'v1_6', version: '1.0.1'
-    implementation 'org.springframework.boot:spring-boot-starter'
+    implementation 'org.springframework.boot:spring-boot-starter-web'
+    implementation group: 'org.springdoc', name: 'springdoc-openapi-starter-webmvc-ui', version: '2.3.0'
     testImplementation 'org.springframework.boot:spring-boot-starter-test'
 }
 

src/main/java/com/yablochkov/ocppstub/AuthService.java

@@ -0,0 +1,17 @@
+package com.yablochkov.ocppstub;
+
+import eu.chargetime.ocpp.model.core.AuthorizationStatus;
+import eu.chargetime.ocpp.model.core.AuthorizeConfirmation;
+import eu.chargetime.ocpp.model.core.IdTagInfo;
+import lombok.extern.slf4j.Slf4j;
+import org.springframework.stereotype.Service;
+
+@Service
+@Slf4j
+public class AuthService {
+
+  public IdTagInfo authorize(String idTag) {
+    log.info("Authorize id tag {}", idTag);
+    return new IdTagInfo(AuthorizationStatus.Accepted);
+  }
+}

src/main/java/com/yablochkov/ocppstub/Communicator.java

@@ -2,6 +2,7 @@ package com.yablochkov.ocppstub;
 
 import eu.chargetime.ocpp.model.Request;
 import eu.chargetime.ocpp.model.core.HeartbeatRequest;
+import eu.chargetime.ocpp.model.core.ResetConfirmation;
 import eu.chargetime.ocpp.model.core.StatusNotificationRequest;
 import java.util.HashMap;
 import java.util.LinkedList;

src/main/java/com/yablochkov/ocppstub/EventHandler.java

@@ -20,10 +20,12 @@ public class EventHandler implements ServerCoreEventHandler, ServerEvents {
     private final ConfigService configService;
     private final ConnectorStatusService connectorService;
     private final Communicator communicator;
+    private final AuthService authService;
+    private final TransactionService transactionService;
 
     @Override
     public AuthorizeConfirmation handleAuthorizeRequest(UUID sessionIndex, AuthorizeRequest request) {
-        return null;
+        return new AuthorizeConfirmation(authService.authorize(request.getIdTag()));
     }
 
     @Override
@@ -49,12 +51,12 @@ public class EventHandler implements ServerCoreEventHandler, ServerEvents {
 
     @Override
     public MeterValuesConfirmation handleMeterValuesRequest(UUID sessionIndex, MeterValuesRequest request) {
-        return null;
+        return new MeterValuesConfirmation();
     }
 
     @Override
     public StartTransactionConfirmation handleStartTransactionRequest(UUID sessionIndex, StartTransactionRequest request) {
-        return null;
+        return transactionService.startByRequest(sessionIndex, request.getConnectorId(), request.getIdTag());
     }
 
     @Override
@@ -65,7 +67,9 @@ public class EventHandler implements ServerCoreEventHandler, ServerEvents {
 
     @Override
     public StopTransactionConfirmation handleStopTransactionRequest(UUID sessionIndex, StopTransactionRequest request) {
-        return null;
+        log.info("Stop transaction request {}", request);
+        transactionService.stopByRequest(sessionIndex, request.getTransactionId());
+        return new StopTransactionConfirmation();
     }
 
     @Override

src/main/java/com/yablochkov/ocppstub/OcppStub.java

@@ -6,10 +6,10 @@ import eu.chargetime.ocpp.UnsupportedFeatureException;
 import eu.chargetime.ocpp.YablJSONServer;
 import eu.chargetime.ocpp.model.Confirmation;
 import eu.chargetime.ocpp.model.Request;
+import jakarta.annotation.PostConstruct;
 import lombok.RequiredArgsConstructor;
 import org.springframework.stereotype.Component;
 
-import javax.annotation.PostConstruct;
 import java.util.UUID;
 import java.util.concurrent.CompletionStage;
 
@@ -21,7 +21,7 @@ public class OcppStub {
 
     @PostConstruct
     private void Init() {
-        server.open("0.0.0.0", 8080, eventHandler);
+        server.open("0.0.0.0", 8081, eventHandler);
     }
 
     public CompletionStage<Confirmation> send(UUID sessionIndex, Request request)

src/main/java/com/yablochkov/ocppstub/SessionService.java

@@ -2,6 +2,9 @@ package com.yablochkov.ocppstub;
 
 import eu.chargetime.ocpp.YablSessionInformation;
 import eu.chargetime.ocpp.model.SessionInformation;
+import java.util.Map.Entry;
+import java.util.Objects;
+import lombok.Getter;
 import lombok.extern.slf4j.Slf4j;
 import org.java_websocket.handshake.ClientHandshake;
 import org.springframework.stereotype.Service;
@@ -13,7 +16,7 @@ import java.util.UUID;
 @Service
 @Slf4j
 public class SessionService {
-    private final Map<UUID,SessionInformation> cache = new HashMap<>();
+    @Getter private final Map<UUID,SessionInformation> cache = new HashMap<>();
     public void register(UUID sessionIndex, SessionInformation information) {
         log.info("Register new session {}", sessionIndex);
         cache.put(sessionIndex, information);
@@ -26,8 +29,7 @@ public class SessionService {
     public String getAuthBySessionId(UUID sessionId) {
         SessionInformation sessionInformation = cache.get(sessionId);
 
-        if (sessionInformation instanceof YablSessionInformation) {
+        if (sessionInformation instanceof YablSessionInformation session) {
-            YablSessionInformation session = (YablSessionInformation) sessionInformation;
 
             ClientHandshake clientHandshake = session.getClientHandshake();
             if (clientHandshake != null) {
@@ -38,4 +40,26 @@ public class SessionService {
         log.debug("Session {} auth status not found", sessionId);
         return null;
     }
+
+    public String getIdentityBySessionId(UUID sessionId) {
+        SessionInformation sessionInformation = cache.get(sessionId);
+        if (Objects.nonNull(sessionInformation)) {
+            return sessionInformation.getIdentifier();
+        }
+        return null;
+    }
+
+    public UUID getSessionByIdentity(String identity) {
+        return cache.entrySet().stream()
+            .filter((entry) -> {
+                var entryValue = entry.getValue();
+                if (Objects.nonNull(entryValue)) {
+                    return Objects.equals(entryValue.getIdentifier(), identity);
+                }
+                return false;
+            })
+            .findFirst()
+            .map(Entry::getKey)
+            .orElseThrow();
+    }
 }

src/main/java/com/yablochkov/ocppstub/TransactionService.java

@@ -0,0 +1,122 @@
+package com.yablochkov.ocppstub;
+
+import eu.chargetime.ocpp.NotConnectedException;
+import eu.chargetime.ocpp.OccurenceConstraintException;
+import eu.chargetime.ocpp.UnsupportedFeatureException;
+import eu.chargetime.ocpp.model.Confirmation;
+import eu.chargetime.ocpp.model.core.AuthorizationStatus;
+import eu.chargetime.ocpp.model.core.IdTagInfo;
+import eu.chargetime.ocpp.model.core.RemoteStartStopStatus;
+import eu.chargetime.ocpp.model.core.RemoteStartTransactionConfirmation;
+import eu.chargetime.ocpp.model.core.RemoteStartTransactionRequest;
+import eu.chargetime.ocpp.model.core.RemoteStopTransactionConfirmation;
+import eu.chargetime.ocpp.model.core.RemoteStopTransactionRequest;
+import eu.chargetime.ocpp.model.core.StartTransactionConfirmation;
+import java.util.HashMap;
+import java.util.Map;
+import java.util.Objects;
+import java.util.UUID;
+import java.util.concurrent.ExecutionException;
+import java.util.concurrent.atomic.AtomicInteger;
+import lombok.extern.slf4j.Slf4j;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.context.annotation.Lazy;
+import org.springframework.stereotype.Service;
+
+@Service
+@Slf4j
+public class TransactionService {
+  private final AtomicInteger transactionNumber = new AtomicInteger();
+  private final Map<String,Integer> transactionMap = new HashMap<>();
+
+  @Autowired private SessionService sessionService;
+  @Autowired private  AuthService authService;
+  @Lazy @Autowired private OcppStub ocppStub;
+
+  public StartTransactionConfirmation startByRequest(UUID sessionIndex, Integer connectorId,
+      String idTag) {
+    var identity = sessionService.getIdentityBySessionId(sessionIndex);
+    log.info("Try to start transaction for {}, connector {}, tag {}", identity, connectorId, idTag);
+
+    if(Objects.nonNull(identity)) {
+      int transactionId = transactionNumber.incrementAndGet();
+      var oldTransactionId = transactionMap.put(identity, transactionId);
+      if (Objects.nonNull(oldTransactionId)) {
+        log.warn("Already have transaction {}, continue", oldTransactionId);
+      }
+      return new StartTransactionConfirmation(authService.authorize(idTag), transactionId);
+    }
+
+    log.error("Can't start transaction, identity not found");
+    return new StartTransactionConfirmation(new IdTagInfo(AuthorizationStatus.Invalid), null);
+  }
+
+  public void stopByRequest(UUID sessionIndex, Integer transactionId) {
+    var identity = sessionService.getIdentityBySessionId(sessionIndex);
+    log.info("Try to stop transaction for {}, with id {}", identity, transactionId);
+
+    if (Objects.nonNull(identity)) {
+      transactionMap.remove(identity);
+    }
+  }
+
+  public RemoteStartTransactionConfirmation remoteStart(String id) {
+    log.info("Try to start transaction for {}", id);
+    var session = sessionService.getSessionByIdentity(id);
+    log.info("Found session {}", session);
+    if (Objects.nonNull(session)) {
+
+      try {
+      var future = ocppStub.send(session,
+          new RemoteStartTransactionRequest(UUID.randomUUID().toString()));
+        Confirmation confirmation = future.toCompletableFuture().get();
+
+        if (confirmation instanceof RemoteStartTransactionConfirmation startConfirmation) {
+          RemoteStartStopStatus status = startConfirmation.getStatus();
+          log.info("Start transaction status {}", status);
+          if (RemoteStartStopStatus.Accepted.equals(status)) {
+            transactionMap.remove(id);
+          }
+          return startConfirmation;
+        }
+      } catch (InterruptedException | ExecutionException | OccurenceConstraintException |
+               UnsupportedFeatureException | NotConnectedException e) {
+        log.error("Caught exception on transaction start", e);
+      }
+    }
+    throw new RuntimeException("Can't start transaction");
+  }
+
+  public RemoteStopTransactionConfirmation remoteStop(String identity) {
+    log.info("Try to stop transaction for {}", identity);
+    var session = sessionService.getSessionByIdentity(identity);
+    log.info("Found session {}", session);
+    if (Objects.nonNull(session)) {
+
+      Integer transactionId = transactionMap.get(identity);
+      log.info("Found transaction id {}", transactionId);
+
+      if (Objects.nonNull(transactionId)) {
+        try {
+          var future = ocppStub.send(session,
+              new RemoteStopTransactionRequest(transactionId));
+
+          Confirmation confirmation = future.toCompletableFuture().get();
+
+          if (confirmation instanceof RemoteStopTransactionConfirmation stopConfirmation) {
+            RemoteStartStopStatus status = stopConfirmation.getStatus();
+            log.info("Stop transaction status {}", status);
+            if (RemoteStartStopStatus.Accepted.equals(status)) {
+              transactionMap.remove(identity);
+            }
+            return stopConfirmation;
+          }
+        } catch (InterruptedException | ExecutionException | OccurenceConstraintException |
+                 UnsupportedFeatureException | NotConnectedException e) {
+          log.error("Caught exception on transaction stop", e);
+        }
+      }
+    }
+    throw new RuntimeException("Can't stop transaction");
+  }
+}

src/main/java/com/yablochkov/ocppstub/rest/ResetController.java

@@ -0,0 +1,86 @@
+package com.yablochkov.ocppstub.rest;
+
+import static eu.chargetime.ocpp.model.core.ResetStatus.Rejected;
+
+import com.yablochkov.ocppstub.OcppStub;
+import com.yablochkov.ocppstub.SessionService;
+import com.yablochkov.ocppstub.TransactionService;
+import eu.chargetime.ocpp.NotConnectedException;
+import eu.chargetime.ocpp.OccurenceConstraintException;
+import eu.chargetime.ocpp.UnsupportedFeatureException;
+import eu.chargetime.ocpp.model.Confirmation;
+import eu.chargetime.ocpp.model.SessionInformation;
+import eu.chargetime.ocpp.model.core.RemoteStartTransactionConfirmation;
+import eu.chargetime.ocpp.model.core.RemoteStopTransactionConfirmation;
+import eu.chargetime.ocpp.model.core.ResetConfirmation;
+import eu.chargetime.ocpp.model.core.ResetRequest;
+import java.util.Map;
+import java.util.Map.Entry;
+import java.util.Objects;
+import java.util.UUID;
+import java.util.concurrent.ExecutionException;
+import lombok.extern.slf4j.Slf4j;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.context.annotation.Lazy;
+import org.springframework.http.HttpStatus;
+import org.springframework.web.bind.annotation.DeleteMapping;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.PathVariable;
+import org.springframework.web.bind.annotation.PostMapping;
+import org.springframework.web.bind.annotation.PutMapping;
+import org.springframework.web.bind.annotation.RequestBody;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.ResponseStatus;
+import org.springframework.web.bind.annotation.RestController;
+
+@RestController
+@RequestMapping("/api/reset")
+@Slf4j
+public class ResetController {
+  @Autowired private SessionService sessionService;
+  @Autowired private TransactionService transactionService;
+  @Lazy @Autowired private OcppStub ocppStub;
+  @GetMapping("/list")
+  public Map<UUID, SessionInformation> findClients() {
+    return sessionService.getCache();
+  }
+
+  @PutMapping("/reset/{identity}")
+  @ResponseStatus(HttpStatus.OK)
+  public ResetConfirmation reset(
+      @PathVariable("identity") final String identity, @RequestBody final ResetRequest request) {
+    // TODO REFACTOR THIS
+    log.info("Send reset to {}, parameters {}", identity, request);
+    var session = sessionService.getCache()
+        .entrySet().stream()
+        .filter((entry) -> Objects.equals(entry.getValue().getIdentifier(), identity))
+        .map(Entry::getKey)
+        .findFirst()
+        .orElseThrow();
+
+    try {
+      var stage = ocppStub.send(session, request);
+
+      Confirmation confirmation = stage.toCompletableFuture().get();
+
+      if (confirmation instanceof ResetConfirmation resetConfirmation) {
+        return resetConfirmation;
+      }
+    } catch (OccurenceConstraintException | UnsupportedFeatureException | NotConnectedException |
+             ExecutionException | InterruptedException e) {
+      log.error("Problem with reset request");
+    }
+
+    return new ResetConfirmation(Rejected);
+  }
+
+  @PostMapping("/start/{identity}")
+  public RemoteStartTransactionConfirmation startTransaction(@PathVariable("identity") final String identity) {
+    return transactionService.remoteStart(identity);
+  }
+
+  @DeleteMapping("/stop/{identity}")
+  public RemoteStopTransactionConfirmation stopTransaction(@PathVariable("identity") final String identity) {
+    return transactionService.remoteStop(identity);
+  }
+}

src/main/resources/application.yaml

@@ -1 +0,0 @@
-

src/main/resources/application.yml

@@ -0,0 +1,6 @@
+server:
+  port: 8080
+
+springdoc:
+  swagger-ui:
+    path: "/api/docs.html"