package com.fsck.k9.mail; import com.fsck.k9.mail.transport.SmtpTransport; import com.fsck.k9.mail.transport.WebDavTransport; public abstract class Transport { protected static final int SOCKET_CONNECT_TIMEOUT = 10000; // RFC 1047 protected static final int SOCKET_READ_TIMEOUT = 300000; public synchronized static Transport getInstance(String uri) throws MessagingException { if (uri.startsWith("smtp")) { return new SmtpTransport(uri); } else if (uri.startsWith("webdav")) { return new WebDavTransport(uri); } else { throw new MessagingException("Unable to locate an applicable Transport for " + uri); } } public abstract void open() throws MessagingException; public abstract void sendMessage(Message message) throws MessagingException; public abstract void close() throws MessagingException; }