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Improve DeliveryReceipt code, add javadoc

Also make Packet.getExtension() use Generics
This commit is contained in:
Florian Schmaus 2014-07-13 10:16:10 +02:00
parent c063fb1376
commit bd0ada480b
5 changed files with 48 additions and 17 deletions

View file

@ -240,7 +240,8 @@ public abstract class Packet {
* @param namespace the XML element namespace of the packet extension.
* @return the extension, or <tt>null</tt> if it doesn't exist.
*/
public PacketExtension getExtension(String elementName, String namespace) {
@SuppressWarnings("unchecked")
public <PE extends PacketExtension> PE getExtension(String elementName, String namespace) {
if (namespace == null) {
return null;
}
@ -248,7 +249,7 @@ public abstract class Packet {
if ((elementName == null || elementName.equals(ext.getElementName()))
&& namespace.equals(ext.getNamespace()))
{
return ext;
return (PE) ext;
}
}
return null;

View file

@ -1,6 +1,6 @@
/**
*
* Copyright the original author or authors
* Copyright 2013-2014 the original author or authors
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
@ -19,6 +19,7 @@ package org.jivesoftware.smackx.receipts;
import java.util.List;
import java.util.Map;
import org.jivesoftware.smack.packet.Packet;
import org.jivesoftware.smack.packet.PacketExtension;
import org.jivesoftware.smack.provider.EmbeddedExtensionProvider;
@ -63,6 +64,16 @@ public class DeliveryReceipt implements PacketExtension
return "<received xmlns='" + NAMESPACE + "' id='" + id + "'/>";
}
/**
* Get the {@link DeliveryReceipt} extension of the packet, if any.
*
* @param p the packet
* @return the {@link DeliveryReceipt} extension or {@code null}
*/
public static DeliveryReceipt getFrom(Packet p) {
return p.getExtension(ELEMENT, NAMESPACE);
}
/**
* This Provider parses and returns DeliveryReceipt packets.
*/

View file

@ -1,6 +1,6 @@
/**
*
* Copyright 2013 Georg Lukas
* Copyright 2013-2014 Georg Lukas
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
@ -43,8 +43,7 @@ import org.jivesoftware.smackx.disco.ServiceDiscoveryManager;
*/
public class DeliveryReceiptManager extends Manager implements PacketListener {
private static Map<XMPPConnection, DeliveryReceiptManager> instances =
Collections.synchronizedMap(new WeakHashMap<XMPPConnection, DeliveryReceiptManager>());
private static Map<XMPPConnection, DeliveryReceiptManager> instances = new WeakHashMap<XMPPConnection, DeliveryReceiptManager>();
static {
XMPPConnection.addConnectionCreationListener(new ConnectionCreationListener() {
@ -62,7 +61,6 @@ public class DeliveryReceiptManager extends Manager implements PacketListener {
super(connection);
ServiceDiscoveryManager sdm = ServiceDiscoveryManager.getInstanceFor(connection);
sdm.addFeature(DeliveryReceipt.NAMESPACE);
instances.put(connection, this);
// register listener for delivery receipts and requests
connection.addPacketListener(this, new PacketExtensionFilter(DeliveryReceipt.NAMESPACE));
@ -80,6 +78,7 @@ public class DeliveryReceiptManager extends Manager implements PacketListener {
if (receiptManager == null) {
receiptManager = new DeliveryReceiptManager(connection);
instances.put(connection, receiptManager);
}
return receiptManager;
@ -101,20 +100,17 @@ public class DeliveryReceiptManager extends Manager implements PacketListener {
// handle incoming receipts and receipt requests
@Override
public void processPacket(Packet packet) throws NotConnectedException {
DeliveryReceipt dr = (DeliveryReceipt)packet.getExtension(
DeliveryReceipt.ELEMENT, DeliveryReceipt.NAMESPACE);
DeliveryReceipt dr = DeliveryReceipt.getFrom(packet);
if (dr != null) {
// notify listeners of incoming receipt
for (ReceiptReceivedListener l : receiptReceivedListeners) {
l.onReceiptReceived(packet.getFrom(), packet.getTo(), dr.getId());
}
}
// if enabled, automatically send a receipt
if (auto_receipts_enabled) {
DeliveryReceiptRequest drr = (DeliveryReceiptRequest)packet.getExtension(
DeliveryReceiptRequest.ELEMENT, DeliveryReceipt.NAMESPACE);
DeliveryReceiptRequest drr = DeliveryReceiptRequest.getFrom(packet);
if (drr != null) {
XMPPConnection connection = connection();
Message ack = new Message(packet.getFrom(), Message.Type.normal);
@ -182,8 +178,7 @@ public class DeliveryReceiptManager extends Manager implements PacketListener {
* @return true if a delivery receipt was requested
*/
public static boolean hasDeliveryReceiptRequest(Packet p) {
return (p.getExtension(DeliveryReceiptRequest.ELEMENT,
DeliveryReceipt.NAMESPACE) != null);
return (DeliveryReceiptRequest.getFrom(p) != null);
}
/**
@ -193,8 +188,10 @@ public class DeliveryReceiptManager extends Manager implements PacketListener {
* therefore only allow Message as the parameter type.
*
* @param m Message object to add a request to
* @return the Message ID which will be used as receipt ID
*/
public static void addDeliveryReceiptRequest(Message m) {
public static String addDeliveryReceiptRequest(Message m) {
m.addExtension(new DeliveryReceiptRequest());
return m.getPacketID();
}
}

View file

@ -1,6 +1,6 @@
/**
*
* Copyright the original author or authors
* Copyright 2013-2014 the original author or authors
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
@ -16,6 +16,7 @@
*/
package org.jivesoftware.smackx.receipts;
import org.jivesoftware.smack.packet.Packet;
import org.jivesoftware.smack.packet.PacketExtension;
import org.jivesoftware.smack.provider.PacketExtensionProvider;
import org.xmlpull.v1.XmlPullParser;
@ -45,6 +46,16 @@ public class DeliveryReceiptRequest implements PacketExtension
return "<request xmlns='" + DeliveryReceipt.NAMESPACE + "'/>";
}
/**
* Get the {@link DeliveryReceiptRequest} extension of the packet, if any.
*
* @param p the packet
* @return the {@link DeliveryReceiptRequest} extension or {@code null}
*/
public static DeliveryReceiptRequest getFrom(Packet p) {
return p.getExtension(ELEMENT, DeliveryReceipt.NAMESPACE);
}
/**
* This Provider parses and returns DeliveryReceiptRequest packets.
*/

View file

@ -1,6 +1,6 @@
/**
*
* Copyright 2013 Georg Lukas
* Copyright 2013-2014 Georg Lukas
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
@ -22,5 +22,16 @@ package org.jivesoftware.smackx.receipts;
* Implement this and add a listener to get notified.
*/
public interface ReceiptReceivedListener {
/**
* Callback invoked when a new receipt got received.
* <p>
* {@code receiptId} correspondents to the message ID, which can be obtained with
* {@link org.jivesoftware.smack.packet.Packet#getPacketID()}.
* </p>
*
* @param fromJid the jid that send this receipt
* @param toJid the jid which received this receipt
* @param receiptId the message ID of the packet which has been received and this receipt is for
*/
void onReceiptReceived(String fromJid, String toJid, String receiptId);
}