Added BASIC group capability (#128)

* Changed serialVersionUID everywhere to 0L

* Added support for GroupResizeEvents and NameChangeEvents

Co-authored-by: CyB3RC0nN0R <kske@outlook.de>

src/main/java/envoy/client/data/Cache.java

@@ -25,7 +25,7 @@ public class Cache<T> implements Consumer<T>, Serializable {
 	private transient Consumer<T>	processor;
 
 	private static final Logger	logger				= EnvoyLog.getLogger(Cache.class);
-	private static final long	serialVersionUID	= 0L;
+	private static final long	serialVersionUID = 0L;
 
 	/**
 	 * Adds an element to the cache.

src/main/java/envoy/client/data/Chat.java

@@ -6,9 +6,8 @@ import java.util.ArrayList;
 import java.util.List;
 
 import envoy.client.net.WriteProxy;
-import envoy.data.Message;
+import envoy.data.*;
 import envoy.data.Message.MessageStatus;
-import envoy.data.User;
 import envoy.event.MessageStatusChangeEvent;
 
 /**
@@ -26,7 +25,7 @@ import envoy.event.MessageStatusChangeEvent;
  */
 public final class Chat implements Serializable {
 
-	private final User			recipient;
+	private final Contact		recipient;
 	private final List<Message>	messages	= new ArrayList<>();
 
 	private static final long serialVersionUID = 1L;
@@ -38,7 +37,7 @@ public final class Chat implements Serializable {
 	 * @param recipient the user who receives the messages
 	 * @since Envoy Client v0.1-alpha
 	 */
-	public Chat(User recipient) { this.recipient = recipient; }
+	public Chat(Contact recipient) { this.recipient = recipient; }
 
 	@Override
 	public String toString() { return String.format("Chat[recipient=%s,messages=%d]", recipient, messages.size()); }
@@ -82,5 +81,17 @@ public final class Chat implements Serializable {
 	 * @return the recipient of a message
 	 * @since Envoy Client v0.1-alpha
 	 */
-	public User getRecipient() { return recipient; }
+	public Contact getRecipient() { return recipient; }
+
+	/**
+	 * @return whether this {@link Chat} points at a {@link User}
+	 * @since Envoy Client v0.1-beta
+	 */
+	public boolean isUserChat() { return recipient instanceof User; }
+
+	/**
+	 * @return whether this {@link Chat} points at a {@link Group}
+	 * @since Envoy Client v0.1-beta
+	 */
+	public boolean isGroupChat() { return recipient instanceof Group; }
 }

src/main/java/envoy/client/data/LocalDB.java

@@ -2,10 +2,8 @@ package envoy.client.data;
 
 import java.util.*;
 
-import envoy.data.IDGenerator;
-import envoy.data.Message;
-import envoy.data.User;
-import envoy.event.MessageStatusChangeEvent;
+import envoy.data.*;
+import envoy.event.*;
 
 /**
  * Stores information about the current {@link User} and their {@link Chat}s.
@@ -155,4 +153,39 @@ public abstract class LocalDB {
 	public Message getMessage(long id) {
 		return chats.stream().map(Chat::getMessages).flatMap(List::stream).filter(m -> m.getID() == id).findAny().orElse(null);
 	}
+
+	/**
+	 * Performs a contact name change if the corresponding contact is present.
+	 *
+	 * @param event the {@link NameChangeEvent} to process
+	 * @since Envoy Client v0.1-beta
+	 */
+	public void replaceContactName(NameChangeEvent event) {
+		chats.stream().map(Chat::getRecipient).filter(c -> c.getID() == event.getId()).findAny().ifPresent(c -> c.setName(event.get()));
+	}
+
+	/**
+	 * Performs a group resize operation if the corresponding group is present.
+	 *
+	 * @param event the {@link GroupResizeEvent} to process
+	 * @since Envoy Client v0.1-beta
+	 */
+	public void updateGroup(GroupResizeEvent event) {
+		chats.stream()
+			.map(Chat::getRecipient)
+			.filter(Group.class::isInstance)
+			.filter(g -> g.getID() == event.getGroupID() && g.getID() != user.getID())
+			.map(Group.class::cast)
+			.findAny()
+			.ifPresent(group -> {
+				switch (event.getOperation()) {
+					case ADD:
+						group.getMemberIDs().add(event.get());
+						break;
+					case REMOVE:
+						group.getMemberIDs().remove(event.get());
+						break;
+				}
+			});
+	}
 }

src/main/java/envoy/client/net/Client.java

@@ -145,12 +145,18 @@ public class Client implements Closeable {
 		// Process message ID generation
 		receiver.registerProcessor(IDGenerator.class, localDB::setIDGenerator);
 
+		// Process name changes
+		receiver.registerProcessor(NameChangeEvent.class, evt -> { localDB.replaceContactName(evt); EventBus.getInstance().dispatch(evt); });
+
 		// Process contact searches
 		receiver.registerProcessor(ContactSearchResult.class, EventBus.getInstance()::dispatch);
 
 		receiver.registerProcessor(Contacts.class,
 				contacts -> EventBus.getInstance().dispatch(new ContactOperationEvent(contacts.getContacts().get(0), Operation.ADD)));
 
+		// Process group size changes
+		receiver.registerProcessor(GroupResizeEvent.class, evt -> { localDB.updateGroup(evt); EventBus.getInstance().dispatch(evt); });
+
 		// Send event
 		EventBus.getInstance().register(SendEvent.class, evt -> {
 			try {

src/main/java/envoy/client/ui/Color.java

@@ -81,7 +81,7 @@ public class Color extends java.awt.Color {
 	 */
 	public static final Color blue = new Color(0, 0, 255);
 
-	private static final long serialVersionUID = -9166233199998257344L;
+	private static final long serialVersionUID = 0L;
 
 	public Color(java.awt.Color other) { this(other.getRGB()); }
 

src/main/java/envoy/client/ui/container/LoginDialog.java

@@ -65,7 +65,7 @@ public class LoginDialog extends JDialog {
 
 	private static final ClientConfig	config				= ClientConfig.getInstance();
 	private static final Logger			logger				= EnvoyLog.getLogger(LoginDialog.class);
-	private static final long			serialVersionUID	= 0L;
+	private static final long			serialVersionUID = 0L;
 
 	/**
 	 * Displays a dialog enabling the user to enter their user name and password.

src/main/java/envoy/client/ui/primary/PrimaryScrollPane.java

@@ -14,7 +14,7 @@ import envoy.client.ui.Theme;
  */
 public class PrimaryScrollPane extends JScrollPane {
 
-	private static final long serialVersionUID = -4786837444056228439L;
+	private static final long serialVersionUID = 0L;
 
 	private int		verticalScrollBarMaximum	= getVerticalScrollBar().getMaximum();
 	private boolean	chatOpened					= false;

src/main/java/envoy/client/ui/primary/PrimaryTextArea.java

@@ -16,7 +16,7 @@ import javax.swing.border.EmptyBorder;
  */
 public class PrimaryTextArea extends JTextArea {
 
-	private static final long	serialVersionUID	= 0L;
+	private static final long	serialVersionUID = 0L;
 	private int					arcSize;
 
 	/**

src/main/java/envoy/client/ui/settings/GeneralSettingsPanel.java

@@ -30,7 +30,7 @@ public class GeneralSettingsPanel extends SettingsPanel {
 
 	private static final String[]	items				= { "onCloseMode", "enterToSend" };
 	private static final Logger		logger				= EnvoyLog.getLogger(GeneralSettingsPanel.class);
-	private static final long		serialVersionUID	= 0L;
+	private static final long		serialVersionUID = 0L;
 
 	/**
 	 * This is the constructor for the General class. Here the user can set general

src/main/java/envoy/client/ui/settings/ThemeCustomizationPanel.java

@@ -39,7 +39,7 @@ public class ThemeCustomizationPanel extends SettingsPanel {
 	private final Insets	insets	= new Insets(5, 5, 5, 5);
 
 	private static final Logger	logger				= EnvoyLog.getLogger(ThemeCustomizationPanel.class);
-	private static final long	serialVersionUID	= 0L;
+	private static final long	serialVersionUID = 0L;
 
 	/**
 	 * Initializes a {@link ThemeCustomizationPanel} that enables the user to change