More refactoring to connect ConnectionRecogniser to ConnectionReader.

Added TestDatabaseModule so tests can specify their own DB
configuration. The modules are currently too tightly coupled - see
whether any dependencies can be removed.

api/net/sf/briar/api/protocol/writers/BatchWriter.java

@@ -7,7 +7,7 @@ import net.sf.briar.api.protocol.BatchId;
 /** An interface for creating a batch packet. */
 public interface BatchWriter {
 
-	/** Returns the capacity of the batch. */
+	/** Returns the capacity of the batch in bytes. */
 	int getCapacity();
 
 	/**

api/net/sf/briar/api/transport/ConnectionReaderFactory.java

@@ -4,6 +4,6 @@ import java.io.InputStream;
 
 public interface ConnectionReaderFactory {
 
-	ConnectionReader createConnectionReader(InputStream in, boolean initiator,
-			int transportId, long connection, byte[] secret);
+	ConnectionReader createConnectionReader(InputStream in, byte[] encryptedIv,
+			byte[] secret);
 }

api/net/sf/briar/api/transport/ConnectionRecogniserFactory.java

@@ -0,0 +1,6 @@
+package net.sf.briar.api.transport;
+
+public interface ConnectionRecogniserFactory {
+
+	ConnectionRecogniser createConnectionRecogniser(int transportId);
+}

api/net/sf/briar/api/transport/ConnectionWriter.java

@@ -12,5 +12,5 @@ public interface ConnectionWriter {
 	OutputStream getOutputStream();
 
 	/** Returns the maximum number of bytes that can be written. */
-	long getCapacity();
+	long getRemainingCapacity();
 }

api/net/sf/briar/api/transport/batch/BatchTransportWriter.java

@@ -9,7 +9,7 @@ import java.io.OutputStream;
  */
 public interface BatchTransportWriter {
 
-	/** Returns the maximum number of bytes that can be written. */
+	/** Returns the capacity of the transport in bytes. */
 	long getCapacity();
 
 	/** Returns an output stream for writing to the transport. */