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Code Issues Projects Releases Wiki Activity

Factored out code for creating private groups.

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This commit is contained in:
akwizgran
2016-01-28 18:05:01 +00:00
parent ce9a81ff98
commit 4e17621081
5 changed files with 78 additions and 66 deletions
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54
briar-core/src/org/briarproject/sync/PrivateGroupFactoryImpl.java Normal file
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@@ -0,0 +1,54 @@
package org.briarproject.sync;
import org.briarproject.api.UniqueId;
import org.briarproject.api.contact.Contact;
import org.briarproject.api.data.BdfWriter;
import org.briarproject.api.data.BdfWriterFactory;
import org.briarproject.api.identity.AuthorId;
import org.briarproject.api.sync.ClientId;
import org.briarproject.api.sync.Group;
import org.briarproject.api.sync.GroupFactory;
import org.briarproject.api.sync.PrivateGroupFactory;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
class PrivateGroupFactoryImpl implements PrivateGroupFactory {
private final GroupFactory groupFactory;
private final BdfWriterFactory bdfWriterFactory;
PrivateGroupFactoryImpl(GroupFactory groupFactory,
BdfWriterFactory bdfWriterFactory) {
this.groupFactory = groupFactory;
this.bdfWriterFactory = bdfWriterFactory;
}
@Override
public Group createPrivateGroup(ClientId clientId, Contact contact) {
AuthorId local = contact.getLocalAuthorId();
AuthorId remote = contact.getAuthor().getId();
byte[] descriptor = createGroupDescriptor(local, remote);
return groupFactory.createGroup(clientId, descriptor);
}
private byte[] createGroupDescriptor(AuthorId local, AuthorId remote) {
ByteArrayOutputStream out = new ByteArrayOutputStream();
BdfWriter w = bdfWriterFactory.createWriter(out);
try {
w.writeListStart();
if (UniqueId.IdComparator.INSTANCE.compare(local, remote) < 0) {
w.writeRaw(local.getBytes());
w.writeRaw(remote.getBytes());
} else {
w.writeRaw(remote.getBytes());
w.writeRaw(local.getBytes());
}
w.writeListEnd();
} catch (IOException e) {
// Shouldn't happen with ByteArrayOutputStream
throw new RuntimeException(e);
}
return out.toByteArray();
}
}

2
briar-core/src/org/briarproject/sync/SyncModule.java
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@@ -13,6 +13,7 @@ import org.briarproject.api.sync.GroupFactory;
import org.briarproject.api.sync.MessageFactory;
import org.briarproject.api.sync.PacketReaderFactory;
import org.briarproject.api.sync.PacketWriterFactory;
import org.briarproject.api.sync.PrivateGroupFactory;
import org.briarproject.api.sync.SubscriptionUpdate;
import org.briarproject.api.sync.SyncSessionFactory;
import org.briarproject.api.sync.ValidationManager;
@@ -28,6 +29,7 @@ public class SyncModule extends AbstractModule {
bind(MessageFactory.class).to(MessageFactoryImpl.class);
bind(PacketReaderFactory.class).to(PacketReaderFactoryImpl.class);
bind(PacketWriterFactory.class).to(PacketWriterFactoryImpl.class);
bind(PrivateGroupFactory.class).to(PrivateGroupFactoryImpl.class);
bind(SyncSessionFactory.class).to(
SyncSessionFactoryImpl.class).in(Singleton.class);
}