The document defines a ChatContact class that implements PropertyBusinessObject and represents contacts in a messaging app. It includes properties for contact details like id, name, photo, groups, and messaging metadata. Methods set up indexing and image processing for the photo property.

1. Creating a WhatsApp Clone - Part III

2. package com.codename1.whatsapp.model;
import java.util.List;
public interface ServerMessages {
public void connected();
public void disconnected();
public void messageReceived(ChatMessage m);
public void userTyping(String contactId);
public void messageViewed(String messageId, List<String> userIds);
}
ServerMessages

3. package com.codename1.whatsapp.model;
import java.util.List;
public interface ServerMessages {
public void connected();
public void disconnected();
public void messageReceived(ChatMessage m);
public void userTyping(String contactId);
public void messageViewed(String messageId, List<String> userIds);
}
ServerMessages

4. package com.codename1.whatsapp.model;
import java.util.List;
public interface ServerMessages {
public void connected();
public void disconnected();
public void messageReceived(ChatMessage m);
public void userTyping(String contactId);
public void messageViewed(String messageId, List<String> userIds);
}
ServerMessages

5. public class ChatContact implements PropertyBusinessObject {
public final Property<String, ChatContact> id = new Property<>("id");
public final Property<String, ChatContact> localId =
new Property<>("localId");
public final Property<String, ChatContact> phone =
new Property<>("phone");
public final Property<Image, ChatContact> photo =
new Property<>("photo", Image.class);
public final Property<String, ChatContact> name =
new Property<>("name");
public final Property<String, ChatContact> tagline =
new Property<>("tagline");
public final Property<String, ChatContact> token =
new Property<>("token");
public final SetProperty<String, ChatContact> members =
new SetProperty<>("members", String.class);
public final SetProperty<String, ChatContact> admins =
new SetProperty<>("admins", String.class);
public final LongProperty<ChatContact> muteUntil =
ChatContact

6. public class ChatContact implements PropertyBusinessObject {
public final Property<String, ChatContact> id = new Property<>("id");
public final Property<String, ChatContact> localId =
new Property<>("localId");
public final Property<String, ChatContact> phone =
new Property<>("phone");
public final Property<Image, ChatContact> photo =
new Property<>("photo", Image.class);
public final Property<String, ChatContact> name =
new Property<>("name");
public final Property<String, ChatContact> tagline =
new Property<>("tagline");
public final Property<String, ChatContact> token =
new Property<>("token");
public final SetProperty<String, ChatContact> members =
new SetProperty<>("members", String.class);
public final SetProperty<String, ChatContact> admins =
new SetProperty<>("admins", String.class);
public final LongProperty<ChatContact> muteUntil =
ChatContact

7. public class ChatContact implements PropertyBusinessObject {
public final Property<String, ChatContact> id = new Property<>("id");
public final Property<String, ChatContact> localId =
new Property<>("localId");
public final Property<String, ChatContact> phone =
new Property<>("phone");
public final Property<Image, ChatContact> photo =
new Property<>("photo", Image.class);
public final Property<String, ChatContact> name =
new Property<>("name");
public final Property<String, ChatContact> tagline =
new Property<>("tagline");
public final Property<String, ChatContact> token =
new Property<>("token");
public final SetProperty<String, ChatContact> members =
new SetProperty<>("members", String.class);
public final SetProperty<String, ChatContact> admins =
new SetProperty<>("admins", String.class);
public final LongProperty<ChatContact> muteUntil =
ChatContact

8. public class ChatContact implements PropertyBusinessObject {
public final Property<String, ChatContact> id = new Property<>("id");
public final Property<String, ChatContact> localId =
new Property<>("localId");
public final Property<String, ChatContact> phone =
new Property<>("phone");
public final Property<Image, ChatContact> photo =
new Property<>("photo", Image.class);
public final Property<String, ChatContact> name =
new Property<>("name");
public final Property<String, ChatContact> tagline =
new Property<>("tagline");
public final Property<String, ChatContact> token =
new Property<>("token");
public final SetProperty<String, ChatContact> members =
new SetProperty<>("members", String.class);
public final SetProperty<String, ChatContact> admins =
new SetProperty<>("admins", String.class);
public final LongProperty<ChatContact> muteUntil =
ChatContact

9. public class ChatContact implements PropertyBusinessObject {
public final Property<String, ChatContact> id = new Property<>("id");
public final Property<String, ChatContact> localId =
new Property<>("localId");
public final Property<String, ChatContact> phone =
new Property<>("phone");
public final Property<Image, ChatContact> photo =
new Property<>("photo", Image.class);
public final Property<String, ChatContact> name =
new Property<>("name");
public final Property<String, ChatContact> tagline =
new Property<>("tagline");
public final Property<String, ChatContact> token =
new Property<>("token");
public final SetProperty<String, ChatContact> members =
new SetProperty<>("members", String.class);
public final SetProperty<String, ChatContact> admins =
new SetProperty<>("admins", String.class);
public final LongProperty<ChatContact> muteUntil =
ChatContact

10. public class ChatContact implements PropertyBusinessObject {
public final Property<String, ChatContact> id = new Property<>("id");
public final Property<String, ChatContact> localId =
new Property<>("localId");
public final Property<String, ChatContact> phone =
new Property<>("phone");
public final Property<Image, ChatContact> photo =
new Property<>("photo", Image.class);
public final Property<String, ChatContact> name =
new Property<>("name");
public final Property<String, ChatContact> tagline =
new Property<>("tagline");
public final Property<String, ChatContact> token =
new Property<>("token");
public final SetProperty<String, ChatContact> members =
new SetProperty<>("members", String.class);
public final SetProperty<String, ChatContact> admins =
new SetProperty<>("admins", String.class);
public final LongProperty<ChatContact> muteUntil =
ChatContact

11. public class ChatContact implements PropertyBusinessObject {
public final Property<String, ChatContact> id = new Property<>("id");
public final Property<String, ChatContact> localId =
new Property<>("localId");
public final Property<String, ChatContact> phone =
new Property<>("phone");
public final Property<Image, ChatContact> photo =
new Property<>("photo", Image.class);
public final Property<String, ChatContact> name =
new Property<>("name");
public final Property<String, ChatContact> tagline =
new Property<>("tagline");
public final Property<String, ChatContact> token =
new Property<>("token");
public final SetProperty<String, ChatContact> members =
new SetProperty<>("members", String.class);
public final SetProperty<String, ChatContact> admins =
new SetProperty<>("admins", String.class);
public final LongProperty<ChatContact> muteUntil =
ChatContact

12. new Property<>("name");
public final Property<String, ChatContact> tagline =
new Property<>("tagline");
public final Property<String, ChatContact> token =
new Property<>("token");
public final SetProperty<String, ChatContact> members =
new SetProperty<>("members", String.class);
public final SetProperty<String, ChatContact> admins =
new SetProperty<>("admins", String.class);
public final LongProperty<ChatContact> muteUntil =
new LongProperty<>("muteUntil");
public final Property<String, ChatContact> createdBy =
new Property<>("createdBy");
public final Property<Date, ChatContact> creationDate =
new Property<>("creationDate", Date.class);
public final Property<Date, ChatContact> lastActivityTime =
new Property<>("lastActivityTime", Date.class);
public final ListProperty<ChatMessage, ChatContact> chats =
new ListProperty<>("chat", ChatMessage.class);
private final PropertyIndex idx = new PropertyIndex(this, "ChatContact",
id, localId, phone, photo, name, tagline, token, members, admins,
ChatContact

13. new Property<>("name");
public final Property<String, ChatContact> tagline =
new Property<>("tagline");
public final Property<String, ChatContact> token =
new Property<>("token");
public final SetProperty<String, ChatContact> members =
new SetProperty<>("members", String.class);
public final SetProperty<String, ChatContact> admins =
new SetProperty<>("admins", String.class);
public final LongProperty<ChatContact> muteUntil =
new LongProperty<>("muteUntil");
public final Property<String, ChatContact> createdBy =
new Property<>("createdBy");
public final Property<Date, ChatContact> creationDate =
new Property<>("creationDate", Date.class);
public final Property<Date, ChatContact> lastActivityTime =
new Property<>("lastActivityTime", Date.class);
public final ListProperty<ChatMessage, ChatContact> chats =
new ListProperty<>("chat", ChatMessage.class);
private final PropertyIndex idx = new PropertyIndex(this, "ChatContact",
id, localId, phone, photo, name, tagline, token, members, admins,
ChatContact

14. new Property<>("name");
public final Property<String, ChatContact> tagline =
new Property<>("tagline");
public final Property<String, ChatContact> token =
new Property<>("token");
public final SetProperty<String, ChatContact> members =
new SetProperty<>("members", String.class);
public final SetProperty<String, ChatContact> admins =
new SetProperty<>("admins", String.class);
public final LongProperty<ChatContact> muteUntil =
new LongProperty<>("muteUntil");
public final Property<String, ChatContact> createdBy =
new Property<>("createdBy");
public final Property<Date, ChatContact> creationDate =
new Property<>("creationDate", Date.class);
public final Property<Date, ChatContact> lastActivityTime =
new Property<>("lastActivityTime", Date.class);
public final ListProperty<ChatMessage, ChatContact> chats =
new ListProperty<>("chat", ChatMessage.class);
private final PropertyIndex idx = new PropertyIndex(this, "ChatContact",
id, localId, phone, photo, name, tagline, token, members, admins,
ChatContact

15. new Property<>("name");
public final Property<String, ChatContact> tagline =
new Property<>("tagline");
public final Property<String, ChatContact> token =
new Property<>("token");
public final SetProperty<String, ChatContact> members =
new SetProperty<>("members", String.class);
public final SetProperty<String, ChatContact> admins =
new SetProperty<>("admins", String.class);
public final LongProperty<ChatContact> muteUntil =
new LongProperty<>("muteUntil");
public final Property<String, ChatContact> createdBy =
new Property<>("createdBy");
public final Property<Date, ChatContact> creationDate =
new Property<>("creationDate", Date.class);
public final Property<Date, ChatContact> lastActivityTime =
new Property<>("lastActivityTime", Date.class);
public final ListProperty<ChatMessage, ChatContact> chats =
new ListProperty<>("chat", ChatMessage.class);
private final PropertyIndex idx = new PropertyIndex(this, "ChatContact",
id, localId, phone, photo, name, tagline, token, members, admins,
ChatContact

16. new Property<>("name");
public final Property<String, ChatContact> tagline =
new Property<>("tagline");
public final Property<String, ChatContact> token =
new Property<>("token");
public final SetProperty<String, ChatContact> members =
new SetProperty<>("members", String.class);
public final SetProperty<String, ChatContact> admins =
new SetProperty<>("admins", String.class);
public final LongProperty<ChatContact> muteUntil =
new LongProperty<>("muteUntil");
public final Property<String, ChatContact> createdBy =
new Property<>("createdBy");
public final Property<Date, ChatContact> creationDate =
new Property<>("creationDate", Date.class);
public final Property<Date, ChatContact> lastActivityTime =
new Property<>("lastActivityTime", Date.class);
public final ListProperty<ChatMessage, ChatContact> chats =
new ListProperty<>("chat", ChatMessage.class);
private final PropertyIndex idx = new PropertyIndex(this, "ChatContact",
id, localId, phone, photo, name, tagline, token, members, admins,
ChatContact

17. new Property<>("name");
public final Property<String, ChatContact> tagline =
new Property<>("tagline");
public final Property<String, ChatContact> token =
new Property<>("token");
public final SetProperty<String, ChatContact> members =
new SetProperty<>("members", String.class);
public final SetProperty<String, ChatContact> admins =
new SetProperty<>("admins", String.class);
public final LongProperty<ChatContact> muteUntil =
new LongProperty<>("muteUntil");
public final Property<String, ChatContact> createdBy =
new Property<>("createdBy");
public final Property<Date, ChatContact> creationDate =
new Property<>("creationDate", Date.class);
public final Property<Date, ChatContact> lastActivityTime =
new Property<>("lastActivityTime", Date.class);
public final ListProperty<ChatMessage, ChatContact> chats =
new ListProperty<>("chat", ChatMessage.class);
private final PropertyIndex idx = new PropertyIndex(this, "ChatContact",
id, localId, phone, photo, name, tagline, token, members, admins,
ChatContact

18. new Property<>("createdBy");
public final Property<Date, ChatContact> creationDate =
new Property<>("creationDate", Date.class);
public final Property<Date, ChatContact> lastActivityTime =
new Property<>("lastActivityTime", Date.class);
public final ListProperty<ChatMessage, ChatContact> chats =
new ListProperty<>("chat", ChatMessage.class);
private final PropertyIndex idx = new PropertyIndex(this, "ChatContact",
id, localId, phone, photo, name, tagline, token, members, admins,
muteUntil, createdBy, creationDate, lastActivityTime, chats);
@Override
public PropertyIndex getPropertyIndex() {
return idx;
}
public ChatContact() {
idx.setExcludeFromJSON(photo, true);
}
private static final int SMALL_IMAGE = 0;
private static final int LARGE_IMAGE = 1;
ChatContact

19. return idx;
}
public ChatContact() {
idx.setExcludeFromJSON(photo, true);
}
private static final int SMALL_IMAGE = 0;
private static final int LARGE_IMAGE = 1;
private static final float[] IMAGE_SIZES = {4f, 6.5f};
private static final Image[] maskImage = new Image[2];
private static final Object[] maskObject = new Object[2];
private static final EncodedImage[] placeholder = new EncodedImage[2];
private static Image createMaskImage(int size) {
Image m = Image.createImage(size, size, 0);
Graphics g = m.getGraphics();
g.setAntiAliased(true);
g.setColor(0xffffff);
g.fillArc(0, 0, size - 1, size -1, 0, 360);
return m;
}
ChatContact

20. return idx;
}
public ChatContact() {
idx.setExcludeFromJSON(photo, true);
}
private static final int SMALL_IMAGE = 0;
private static final int LARGE_IMAGE = 1;
private static final float[] IMAGE_SIZES = {4f, 6.5f};
private static final Image[] maskImage = new Image[2];
private static final Object[] maskObject = new Object[2];
private static final EncodedImage[] placeholder = new EncodedImage[2];
private static Image createMaskImage(int size) {
Image m = Image.createImage(size, size, 0);
Graphics g = m.getGraphics();
g.setAntiAliased(true);
g.setColor(0xffffff);
g.fillArc(0, 0, size - 1, size -1, 0, 360);
return m;
}
ChatContact

21. return idx;
}
public ChatContact() {
idx.setExcludeFromJSON(photo, true);
}
private static final int SMALL_IMAGE = 0;
private static final int LARGE_IMAGE = 1;
private static final float[] IMAGE_SIZES = {4f, 6.5f};
private static final Image[] maskImage = new Image[2];
private static final Object[] maskObject = new Object[2];
private static final EncodedImage[] placeholder = new EncodedImage[2];
private static Image createMaskImage(int size) {
Image m = Image.createImage(size, size, 0);
Graphics g = m.getGraphics();
g.setAntiAliased(true);
g.setColor(0xffffff);
g.fillArc(0, 0, size - 1, size -1, 0, 360);
return m;
}
ChatContact

22. return idx;
}
public ChatContact() {
idx.setExcludeFromJSON(photo, true);
}
private static final int SMALL_IMAGE = 0;
private static final int LARGE_IMAGE = 1;
private static final float[] IMAGE_SIZES = {4f, 6.5f};
private static final Image[] maskImage = new Image[2];
private static final Object[] maskObject = new Object[2];
private static final EncodedImage[] placeholder = new EncodedImage[2];
private static Image createMaskImage(int size) {
Image m = Image.createImage(size, size, 0);
Graphics g = m.getGraphics();
g.setAntiAliased(true);
g.setColor(0xffffff);
g.fillArc(0, 0, size - 1, size -1, 0, 360);
return m;
}
ChatContact

23. return idx;
}
public ChatContact() {
idx.setExcludeFromJSON(photo, true);
}
private static final int SMALL_IMAGE = 0;
private static final int LARGE_IMAGE = 1;
private static final float[] IMAGE_SIZES = {4f, 6.5f};
private static final Image[] maskImage = new Image[2];
private static final Object[] maskObject = new Object[2];
private static final EncodedImage[] placeholder = new EncodedImage[2];
private static Image createMaskImage(int size) {
Image m = Image.createImage(size, size, 0);
Graphics g = m.getGraphics();
g.setAntiAliased(true);
g.setColor(0xffffff);
g.fillArc(0, 0, size - 1, size -1, 0, 360);
return m;
}
ChatContact

24. Graphics g = m.getGraphics();
g.setAntiAliased(true);
g.setColor(0xffffff);
g.fillArc(0, 0, size - 1, size -1, 0, 360);
return m;
}
private Image createPlaceholder(int size) {
Image i = Image.createImage(size, size, 0xffe2e7ea);
Graphics g = i.getGraphics();
g.setAntiAliased(true);
g.setAntiAliasedText(true);
g.setColor(0xffffff);
Font fnt = FontImage.getMaterialDesignFont().
derive(size, Font.STYLE_PLAIN);
g.setFont(fnt);
String s = "" + FontImage.MATERIAL_PERSON;
g.drawString(s, size / 2 - fnt.stringWidth(s) / 2, 0);
return i;
}
private Image getImage(int offset) {
ChatContact

25. return i;
}
private Image getImage(int offset) {
if(maskImage[offset] == null) {
maskImage[offset] =
createMaskImage(convertToPixels(IMAGE_SIZES[offset]));
maskObject[offset] = maskImage[offset].createMask();
Image i = createPlaceholder(
convertToPixels(IMAGE_SIZES[offset]));
placeholder[offset] = EncodedImage.createFromImage(
i.applyMask(maskObject[offset]), false);
}
if(photo.get() == null) {
return placeholder[offset];
}
return photo.get().
fill(maskImage[offset].getWidth(),
maskImage[offset].getHeight()).
applyMask(maskObject[offset]);
}
ChatContact

26. return i;
}
private Image getImage(int offset) {
if(maskImage[offset] == null) {
maskImage[offset] =
createMaskImage(convertToPixels(IMAGE_SIZES[offset]));
maskObject[offset] = maskImage[offset].createMask();
Image i = createPlaceholder(
convertToPixels(IMAGE_SIZES[offset]));
placeholder[offset] = EncodedImage.createFromImage(
i.applyMask(maskObject[offset]), false);
}
if(photo.get() == null) {
return placeholder[offset];
}
return photo.get().
fill(maskImage[offset].getWidth(),
maskImage[offset].getHeight()).
applyMask(maskObject[offset]);
}
ChatContact

27. return i;
}
private Image getImage(int offset) {
if(maskImage[offset] == null) {
maskImage[offset] =
createMaskImage(convertToPixels(IMAGE_SIZES[offset]));
maskObject[offset] = maskImage[offset].createMask();
Image i = createPlaceholder(
convertToPixels(IMAGE_SIZES[offset]));
placeholder[offset] = EncodedImage.createFromImage(
i.applyMask(maskObject[offset]), false);
}
if(photo.get() == null) {
return placeholder[offset];
}
return photo.get().
fill(maskImage[offset].getWidth(),
maskImage[offset].getHeight()).
applyMask(maskObject[offset]);
}
ChatContact

28. return i;
}
private Image getImage(int offset) {
if(maskImage[offset] == null) {
maskImage[offset] =
createMaskImage(convertToPixels(IMAGE_SIZES[offset]));
maskObject[offset] = maskImage[offset].createMask();
Image i = createPlaceholder(
convertToPixels(IMAGE_SIZES[offset]));
placeholder[offset] = EncodedImage.createFromImage(
i.applyMask(maskObject[offset]), false);
}
if(photo.get() == null) {
return placeholder[offset];
}
return photo.get().
fill(maskImage[offset].getWidth(),
maskImage[offset].getHeight()).
applyMask(maskObject[offset]);
}
ChatContact

29. return i;
}
private Image getImage(int offset) {
if(maskImage[offset] == null) {
maskImage[offset] =
createMaskImage(convertToPixels(IMAGE_SIZES[offset]));
maskObject[offset] = maskImage[offset].createMask();
Image i = createPlaceholder(
convertToPixels(IMAGE_SIZES[offset]));
placeholder[offset] = EncodedImage.createFromImage(
i.applyMask(maskObject[offset]), false);
}
if(photo.get() == null) {
return placeholder[offset];
}
return photo.get().
fill(maskImage[offset].getWidth(),
maskImage[offset].getHeight()).
applyMask(maskObject[offset]);
}
ChatContact

30. applyMask(maskObject[offset]);
}
private Image smallIcon;
private Image largeIcon;
public Image getSmallIcon() {
if(smallIcon != null) {
return smallIcon;
}
smallIcon = getImage(SMALL_IMAGE);
return smallIcon;
}
public Image getLargeIcon() {
if(largeIcon != null) {
return largeIcon;
}
largeIcon = getImage(LARGE_IMAGE);
return largeIcon;
}
ChatContact