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Add method for querying contact's client minor version.

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This commit is contained in:
akwizgran
2018-12-11 17:25:29 +00:00
parent cdf4f3a24b
commit 0081472489
2 changed files with 38 additions and 7 deletions
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7
bramble-api/src/main/java/org/briarproject/bramble/api/versioning/ClientVersioningManager.java
View File

@@ -38,6 +38,13 @@ public interface ClientVersioningManager {
Visibility getClientVisibility(Transaction txn, ContactId contactId,
ClientId clientId, int majorVersion) throws DbException;
/**
* Returns the minor version of the given client that is supported by the
* given contact, or -1 if the contact does not support the client.
*/
int getClientMinorVersion(Transaction txn, ContactId contactId,
ClientId clientId, int majorVersion) throws DbException;
interface ClientVersioningHook {
void onClientVisibilityChanging(Transaction txn, Contact c,

38
bramble-core/src/main/java/org/briarproject/bramble/versioning/ClientVersioningManagerImpl.java
View File

@@ -89,14 +89,9 @@ class ClientVersioningManagerImpl implements ClientVersioningManager, Client,
public Visibility getClientVisibility(Transaction txn, ContactId contactId,
ClientId clientId, int majorVersion) throws DbException {
try {
Contact contact = db.getContact(txn, contactId);
Group g = getContactGroup(contact);
// Contact may be in the process of being added or removed, so
// contact group may not exist
if (!db.containsGroup(txn, g.getId())) return INVISIBLE;
LatestUpdates latest = findLatestUpdates(txn, g.getId());
LatestUpdates latest = findLatestUpdates(txn, contactId);
if (latest == null || latest.remote == null) return INVISIBLE;
if (latest.local == null) throw new DbException();
if (latest.remote == null) return INVISIBLE;
Update localUpdate = loadUpdate(txn, latest.local.messageId);
Update remoteUpdate = loadUpdate(txn, latest.remote.messageId);
Map<ClientMajorVersion, Visibility> visibilities =
@@ -110,6 +105,24 @@ class ClientVersioningManagerImpl implements ClientVersioningManager, Client,
}
}
@Override
public int getClientMinorVersion(Transaction txn, ContactId contactId,
ClientId clientId, int majorVersion) throws DbException {
try {
LatestUpdates latest = findLatestUpdates(txn, contactId);
if (latest == null || latest.remote == null) return -1;
Update remoteUpdate = loadUpdate(txn, latest.remote.messageId);
ClientMajorVersion cv =
new ClientMajorVersion(clientId, majorVersion);
for (ClientState remote : remoteUpdate.states) {
if (remote.majorVersion.equals(cv)) return remote.minorVersion;
}
return -1;
} catch (FormatException e) {
throw new DbException(e);
}
}
@Override
public void createLocalState(Transaction txn) throws DbException {
if (db.containsGroup(txn, localGroup.getId())) return;
@@ -336,6 +349,17 @@ class ClientVersioningManagerImpl implements ClientVersioningManager, Client,
MAJOR_VERSION, c);
}
@Nullable
private LatestUpdates findLatestUpdates(Transaction txn, ContactId c)
throws DbException, FormatException {
Contact contact = db.getContact(txn, c);
Group g = getContactGroup(contact);
// Contact may be in the process of being added or removed, so
// contact group may not exist
if (!db.containsGroup(txn, g.getId())) return null;
return findLatestUpdates(txn, g.getId());
}
private LatestUpdates findLatestUpdates(Transaction txn, GroupId g)
throws DbException, FormatException {
Map<MessageId, BdfDictionary> metadata =