Split commands into separate classes

src/main/java/org/asamk/signal/commands/ReceiveCommand.java

@@ -0,0 +1,110 @@
+package org.asamk.signal.commands;
+
+import net.sourceforge.argparse4j.impl.Arguments;
+import net.sourceforge.argparse4j.inf.Namespace;
+import net.sourceforge.argparse4j.inf.Subparser;
+import org.asamk.Signal;
+import org.asamk.signal.JsonReceiveMessageHandler;
+import org.asamk.signal.ReceiveMessageHandler;
+import org.asamk.signal.manager.Manager;
+import org.asamk.signal.util.DateUtils;
+import org.freedesktop.dbus.DBusConnection;
+import org.freedesktop.dbus.DBusSigHandler;
+import org.freedesktop.dbus.exceptions.DBusException;
+import org.whispersystems.signalservice.internal.util.Base64;
+
+import java.io.IOException;
+import java.util.concurrent.TimeUnit;
+
+import static org.asamk.signal.util.ErrorUtils.handleAssertionError;
+
+public class ReceiveCommand implements ExtendedDbusCommand, LocalCommand {
+
+    @Override
+    public void attachToSubparser(final Subparser subparser) {
+        subparser.addArgument("-t", "--timeout")
+                .type(double.class)
+                .help("Number of seconds to wait for new messages (negative values disable timeout)");
+        subparser.addArgument("--ignore-attachments")
+                .help("Don’t download attachments of received messages.")
+                .action(Arguments.storeTrue());
+        subparser.addArgument("--json")
+                .help("Output received messages in json format, one json object per line.")
+                .action(Arguments.storeTrue());
+    }
+
+    public int handleCommand(final Namespace ns, final Signal signal, DBusConnection dbusconnection) {
+        if (dbusconnection != null) {
+            try {
+                dbusconnection.addSigHandler(Signal.MessageReceived.class, new DBusSigHandler<Signal.MessageReceived>() {
+                    @Override
+                    public void handle(Signal.MessageReceived s) {
+                        System.out.print(String.format("Envelope from: %s\nTimestamp: %s\nBody: %s\n",
+                                s.getSender(), DateUtils.formatTimestamp(s.getTimestamp()), s.getMessage()));
+                        if (s.getGroupId().length > 0) {
+                            System.out.println("Group info:");
+                            System.out.println("  Id: " + Base64.encodeBytes(s.getGroupId()));
+                        }
+                        if (s.getAttachments().size() > 0) {
+                            System.out.println("Attachments: ");
+                            for (String attachment : s.getAttachments()) {
+                                System.out.println("-  Stored plaintext in: " + attachment);
+                            }
+                        }
+                        System.out.println();
+                    }
+                });
+                dbusconnection.addSigHandler(Signal.ReceiptReceived.class, new DBusSigHandler<Signal.ReceiptReceived>() {
+                    @Override
+                    public void handle(Signal.ReceiptReceived s) {
+                        System.out.print(String.format("Receipt from: %s\nTimestamp: %s\n",
+                                s.getSender(), DateUtils.formatTimestamp(s.getTimestamp())));
+                    }
+                });
+            } catch (UnsatisfiedLinkError e) {
+                System.err.println("Missing native library dependency for dbus service: " + e.getMessage());
+                return 1;
+            } catch (DBusException e) {
+                e.printStackTrace();
+                return 1;
+            }
+            while (true) {
+                try {
+                    Thread.sleep(10000);
+                } catch (InterruptedException e) {
+                    return 0;
+                }
+            }
+        }
+        return 0;
+    }
+
+    @Override
+    public int handleCommand(final Namespace ns, final Manager m) {
+        if (!m.isRegistered()) {
+            System.err.println("User is not registered.");
+            return 1;
+        }
+        double timeout = 5;
+        if (ns.getDouble("timeout") != null) {
+            timeout = ns.getDouble("timeout");
+        }
+        boolean returnOnTimeout = true;
+        if (timeout < 0) {
+            returnOnTimeout = false;
+            timeout = 3600;
+        }
+        boolean ignoreAttachments = ns.getBoolean("ignore_attachments");
+        try {
+            final Manager.ReceiveMessageHandler handler = ns.getBoolean("json") ? new JsonReceiveMessageHandler(m) : new ReceiveMessageHandler(m);
+            m.receiveMessages((long) (timeout * 1000), TimeUnit.MILLISECONDS, returnOnTimeout, ignoreAttachments, handler);
+            return 0;
+        } catch (IOException e) {
+            System.err.println("Error while receiving messages: " + e.getMessage());
+            return 3;
+        } catch (AssertionError e) {
+            handleAssertionError(e);
+            return 1;
+        }
+    }
+}