Fix null pointer regression

[signal-cli] / src / main / java / org / asamk / signal / commands / ReceiveCommand.java

diff --git a/src/main/java/org/asamk/signal/commands/ReceiveCommand.java b/src/main/java/org/asamk/signal/commands/ReceiveCommand.java
index 16421b62ca3139c48244149fc6082548d0cfe070..37da35e1397d663bea6f48c512896716a22d6582 100644 (file)
--- a/src/main/java/org/asamk/signal/commands/ReceiveCommand.java
+++ b/src/main/java/org/asamk/signal/commands/ReceiveCommand.java
@@ -8,6 +8,7 @@ import net.sourceforge.argparse4j.inf.Subparser;
 
 import org.asamk.signal.OutputType;
 import org.asamk.signal.ReceiveMessageHandler;
+import org.asamk.signal.Shutdown;
 import org.asamk.signal.commands.exceptions.CommandException;
 import org.asamk.signal.commands.exceptions.IOErrorException;
 import org.asamk.signal.commands.exceptions.UserErrorException;
@@ -29,7 +30,7 @@ import java.util.Optional;
 
 public class ReceiveCommand implements LocalCommand, JsonRpcSingleCommand<ReceiveCommand.ReceiveParams> {
 
-    private final static Logger logger = LoggerFactory.getLogger(ReceiveCommand.class);
+    private static final Logger logger = LoggerFactory.getLogger(ReceiveCommand.class);
 
     @Override
     public String getName() {
@@ -65,8 +66,11 @@ public class ReceiveCommand implements LocalCommand, JsonRpcSingleCommand<Receiv
 
     @Override
     public void handleCommand(
-            final Namespace ns, final Manager m, final OutputWriter outputWriter
+            final Namespace ns,
+            final Manager m,
+            final OutputWriter outputWriter
     ) throws CommandException {
+        Shutdown.installHandler();
         final var timeout = ns.getDouble("timeout");
         final var maxMessagesRaw = ns.getInt("max-messages");
         final var ignoreAttachments = Boolean.TRUE.equals(ns.getBoolean("ignore-attachments"));
@@ -74,10 +78,13 @@ public class ReceiveCommand implements LocalCommand, JsonRpcSingleCommand<Receiv
         final var sendReadReceipts = Boolean.TRUE.equals(ns.getBoolean("send-read-receipts"));
         m.setReceiveConfig(new ReceiveConfig(ignoreAttachments, ignoreStories, sendReadReceipts));
         try {
-            final var handler = outputWriter instanceof JsonWriter ? new JsonReceiveMessageHandler(m,
-                    (JsonWriter) outputWriter) : new ReceiveMessageHandler(m, (PlainTextWriter) outputWriter);
+            final var handler = switch (outputWriter) {
+                case JsonWriter writer -> new JsonReceiveMessageHandler(m, writer);
+                case PlainTextWriter writer -> new ReceiveMessageHandler(m, writer);
+            };
             final var duration = timeout < 0 ? null : Duration.ofMillis((long) (timeout * 1000));
             final var maxMessages = maxMessagesRaw < 0 ? null : maxMessagesRaw;
+            Shutdown.registerShutdownListener(m::stopReceiveMessages);
             m.receiveMessages(Optional.ofNullable(duration), Optional.ofNullable(maxMessages), handler);
         } catch (IOException e) {
             throw new IOErrorException("Error while receiving messages: " + e.getMessage(), e);
@@ -93,7 +100,9 @@ public class ReceiveCommand implements LocalCommand, JsonRpcSingleCommand<Receiv
 
     @Override
     public void handleCommand(
-            final ReceiveParams request, final Manager m, final JsonWriter jsonWriter
+            final ReceiveParams request,
+            final Manager m,
+            final JsonWriter jsonWriter
     ) throws CommandException {
         final var timeout = request.timeout() == null ? 3.0 : request.timeout();
         final var maxMessagesRaw = request.maxMessages() == null ? -1 : request.maxMessages();