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[address] Get rid of PacketCopy workaround

PacketCopy subclassing Stanza was always a peculiarity. The only
subclasses of Stanza should be Message, Presence, and IQ.
This commit is contained in:
Florian Schmaus 2020-11-08 22:14:15 +01:00
parent 72acd8e095
commit df96c57093

View file

@ -26,8 +26,13 @@ import org.jivesoftware.smack.SmackException.NoResponseException;
import org.jivesoftware.smack.SmackException.NotConnectedException;
import org.jivesoftware.smack.XMPPConnection;
import org.jivesoftware.smack.XMPPException.XMPPErrorException;
import org.jivesoftware.smack.packet.IQ;
import org.jivesoftware.smack.packet.Message;
import org.jivesoftware.smack.packet.Presence;
import org.jivesoftware.smack.packet.Stanza;
import org.jivesoftware.smack.packet.StanzaBuilder;
import org.jivesoftware.smack.packet.StanzaFactory;
import org.jivesoftware.smack.packet.StanzaView;
import org.jivesoftware.smack.util.StringUtils;
import org.jivesoftware.smackx.address.packet.MultipleAddresses;
@ -207,25 +212,44 @@ public class MultipleRecipientManager {
return extension == null ? null : new MultipleRecipientInfo(extension);
}
private static void sendToIndividualRecipients(XMPPConnection connection, Stanza packet,
private static void sendToIndividualRecipients(XMPPConnection connection, StanzaView stanza,
Collection<? extends Jid> to, Collection<? extends Jid> cc, Collection<? extends Jid> bcc) throws NotConnectedException, InterruptedException {
if (to != null) {
for (Jid jid : to) {
packet.setTo(jid);
connection.sendStanza(new PacketCopy(packet));
final StanzaFactory stanzaFactory = connection.getStanzaFactory();
final StanzaBuilder<?> stanzaBuilder;
if (stanza instanceof Message) {
Message message = (Message) stanza;
stanzaBuilder = stanzaFactory.buildMessageStanzaFrom(message);
} else if (stanza instanceof Presence) {
Presence presence = (Presence) stanza;
stanzaBuilder = stanzaFactory.buildPresenceStanzaFrom(presence);
} else if (stanza instanceof IQ) {
throw new IllegalArgumentException("IQ stanzas have no supported fallback in case no XEP-0033 service is available");
} else {
throw new AssertionError();
}
final int numRecipients = to.size() + cc.size() + bcc.size();
final List<Jid> recipients = new ArrayList<>(numRecipients);
if (to != null) {
recipients.addAll(to);
}
if (cc != null) {
for (Jid jid : cc) {
packet.setTo(jid);
connection.sendStanza(new PacketCopy(packet));
}
recipients.addAll(cc);
}
if (bcc != null) {
for (Jid jid : bcc) {
packet.setTo(jid);
connection.sendStanza(new PacketCopy(packet));
recipients.addAll(bcc);
}
final List<Stanza> stanzasToSend = new ArrayList<>(numRecipients);
for (Jid recipient : recipients) {
Stanza stanzaToSend = stanzaBuilder.to(recipient).build();
stanzasToSend.add(stanzaToSend);
}
// TODO: Use XMPPConnection.sendStanzas(Collection<? extends Stanza>) once this method exists.
for (Stanza stanzaToSend : stanzasToSend) {
connection.sendStanza(stanzaToSend);
}
}
@ -289,43 +313,4 @@ public class MultipleRecipientManager {
return sdm.findService(MultipleAddresses.NAMESPACE, true);
}
/**
* Stanza that holds the XML stanza to send. This class is useful when the same packet
* is needed to be sent to different recipients. Since using the same stanza is not possible
* (i.e. cannot change the TO address of a queues stanza to be sent) then this class was
* created to keep the XML stanza to send.
*/
private static final class PacketCopy extends Stanza {
private final String elementName;
private final CharSequence text;
/**
* Create a copy of a stanza with the text to send. The passed text must be a valid text to
* send to the server, no validation will be done on the passed text.
*
* @param text the whole text of the stanza to send
*/
private PacketCopy(Stanza stanza) {
this.elementName = stanza.getElementName();
this.text = stanza.toXML();
}
@Override
public CharSequence toXML(org.jivesoftware.smack.packet.XmlEnvironment enclosingNamespace) {
return text;
}
@Override
public String toString() {
return toXML().toString();
}
@Override
public String getElementName() {
return elementName;
}
}
}