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Code Issues Projects Releases Wiki Activity

Make GroupItem immutable and introduce copy constructors

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This commit is contained in:
Torsten Grote
2021-01-04 15:21:02 -03:00
parent 205b4f77b2
commit f882e46b33
2 changed files with 22 additions and 28 deletions
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38
briar-android/src/main/java/org/briarproject/briar/android/privategroup/list/GroupItem.java
View File

@@ -8,17 +8,19 @@ import org.briarproject.briar.api.client.MessageTracker.GroupCount;
import org.briarproject.briar.api.privategroup.GroupMessageHeader;
import org.briarproject.briar.api.privategroup.PrivateGroup;
import javax.annotation.concurrent.Immutable;
import androidx.annotation.Nullable;
// This class is not thread-safe
@Immutable
@NotNullByDefault
class GroupItem implements Comparable<GroupItem> {
private final PrivateGroup privateGroup;
private final AuthorInfo authorInfo;
private int messageCount, unreadCount;
private long timestamp;
private boolean dissolved;
private final int messageCount, unreadCount;
private final long timestamp;
private final boolean dissolved;
GroupItem(PrivateGroup privateGroup, AuthorInfo authorInfo,
GroupCount count, boolean dissolved) {
@@ -30,23 +32,22 @@ class GroupItem implements Comparable<GroupItem> {
this.dissolved = dissolved;
}
GroupItem(GroupItem item) {
GroupItem(GroupItem item, GroupMessageHeader header) {
this.privateGroup = item.privateGroup;
this.authorInfo = item.authorInfo;
this.messageCount = item.messageCount + 1;
this.unreadCount = item.unreadCount + (header.isRead() ? 0 : 1);
this.timestamp = Math.max(header.getTimestamp(), item.timestamp);
this.dissolved = item.dissolved;
}
GroupItem(GroupItem item, boolean isDissolved) {
this.privateGroup = item.privateGroup;
this.authorInfo = item.authorInfo;
this.messageCount = item.messageCount;
this.unreadCount = item.unreadCount;
this.timestamp = item.timestamp;
this.dissolved = item.dissolved;
}
void addMessageHeader(GroupMessageHeader header) {
messageCount++;
if (header.getTimestamp() > timestamp) {
timestamp = header.getTimestamp();
}
if (!header.isRead()) {
unreadCount++;
}
this.dissolved = isDissolved;
}
GroupId getId() {
@@ -85,8 +86,9 @@ class GroupItem implements Comparable<GroupItem> {
return dissolved;
}
void setDissolved() {
dissolved = true;
@Override
public int hashCode() {
return getId().hashCode();
}
@Override

12
briar-android/src/main/java/org/briarproject/briar/android/privategroup/list/GroupListViewModel.java
View File

@@ -171,11 +171,7 @@ class GroupListViewModel extends DbViewModel implements EventListener {
GroupId g = header.getGroupId();
List<GroupItem> list = updateListItem(groupItems,
itemToTest -> itemToTest.getId().equals(g),
itemToUpdate -> {
GroupItem newItem = new GroupItem(itemToUpdate);
newItem.addMessageHeader(header);
return newItem;
});
itemToUpdate -> new GroupItem(itemToUpdate, header));
if (list == null) return;
// re-sort as the order of items may have changed
Collections.sort(list);
@@ -186,11 +182,7 @@ class GroupListViewModel extends DbViewModel implements EventListener {
private void onGroupDissolved(GroupId groupId) {
List<GroupItem> list = updateListItem(groupItems,
itemToTest -> itemToTest.getId().equals(groupId),
itemToUpdate -> {
GroupItem newItem = new GroupItem(itemToUpdate);
newItem.setDissolved();
return newItem;
});
itemToUpdate -> new GroupItem(itemToUpdate, true));
if (list == null) return;
groupItems.setValue(new LiveResult<>(list));
}