Refactor command creation

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

diff --git a/src/main/java/org/asamk/signal/commands/LinkCommand.java b/src/main/java/org/asamk/signal/commands/LinkCommand.java
index 5c40dba67987c2f9f75b264969f4af7b4e1bf014..9fcaf04d03b93f01bb3713c40f89a88932a371fe 100644 (file)
--- a/src/main/java/org/asamk/signal/commands/LinkCommand.java
+++ b/src/main/java/org/asamk/signal/commands/LinkCommand.java
@@ -3,52 +3,59 @@ package org.asamk.signal.commands;
 import net.sourceforge.argparse4j.inf.Namespace;
 import net.sourceforge.argparse4j.inf.Subparser;
 
+import org.asamk.signal.OutputWriter;
+import org.asamk.signal.PlainTextWriter;
+import org.asamk.signal.commands.exceptions.CommandException;
+import org.asamk.signal.commands.exceptions.IOErrorException;
+import org.asamk.signal.commands.exceptions.UserErrorException;
 import org.asamk.signal.manager.ProvisioningManager;
 import org.asamk.signal.manager.UserAlreadyExists;
-import org.whispersystems.libsignal.InvalidKeyException;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 
 import java.io.IOException;
 import java.util.concurrent.TimeoutException;
 
-import static org.asamk.signal.util.ErrorUtils.handleAssertionError;
-
 public class LinkCommand implements ProvisioningCommand {
 
+    private final static Logger logger = LoggerFactory.getLogger(LinkCommand.class);
+
+    @Override
+    public String getName() {
+        return "link";
+    }
+
     @Override
     public void attachToSubparser(final Subparser subparser) {
+        subparser.help("Link to an existing device, instead of registering a new number.");
         subparser.addArgument("-n", "--name").help("Specify a name to describe this new device.");
     }
 
     @Override
-    public int handleCommand(final Namespace ns, final ProvisioningManager m) {
+    public void handleCommand(
+            final Namespace ns, final ProvisioningManager m, final OutputWriter outputWriter
+    ) throws CommandException {
+        final var writer = (PlainTextWriter) outputWriter;
+
         var deviceName = ns.getString("name");
         if (deviceName == null) {
             deviceName = "cli";
         }
         try {
-            System.out.println(m.getDeviceLinkUri());
-            var username = m.finishDeviceLink(deviceName);
-            System.out.println("Associated with: " + username);
+            writer.println("{}", m.getDeviceLinkUri());
+            try (var manager = m.finishDeviceLink(deviceName)) {
+                writer.println("Associated with: {}", manager.getUsername());
+            }
         } catch (TimeoutException e) {
-            System.err.println("Link request timed out, please try again.");
-            return 3;
+            throw new UserErrorException("Link request timed out, please try again.");
         } catch (IOException e) {
-            System.err.println("Link request error: " + e.getMessage());
-            return 3;
-        } catch (AssertionError e) {
-            handleAssertionError(e);
-            return 1;
-        } catch (InvalidKeyException e) {
-            e.printStackTrace();
-            return 2;
+            throw new IOErrorException("Link request error: " + e.getMessage());
         } catch (UserAlreadyExists e) {
-            System.err.println("The user "
+            throw new UserErrorException("The user "
                     + e.getUsername()
                     + " already exists\nDelete \""
                     + e.getFileName()
                     + "\" before trying again.");
-            return 1;
         }
-        return 0;
     }
 }