Smack XMPP自定义扩展程序未完全到达

时间:2013-08-01 08:14:37

标签: java xmpp openfire smack

我让Smack在OpenFire上运行。邮件传输工作正常,但自定义扩展程序永远不会完全到达。

这是发送的内容(由一个非smack库):

<message type="normal" id="42444f16-761f-471d-a37c-c9204cf14cfc" to="timmy@openfireserver.eu">
  <operation xmlns="http://www.openfireserver.eu/ns/xmpp-rest" ack="false">PUT</operation>
  <part xmlns="http://www.openfireserver.eu/ns/xmpp-rest" RIDDL-TYPE="simple" content-disposition="riddl-data; name=&quot;value&quot;">stopped</part>
  <part xmlns="http://www.openfireserver.eu/ns/xmpp-rest" RIDDL-TYPE="simple" content-disposition="riddl-data; name=&quot;tims&quot;">world</part>
  <part xmlns="http://www.openfireserver.eu/ns/xmpp-rest" RIDDL-TYPE="complex" content-disposition="riddl-data; name=&quot;excellent&quot;" content-transfer-encoding="binary" content-type="text/plain">party time</part>
</message>

这就是到货:

<message id="42444f16-761f-471d-a37c-c9204cf14cfc" to="timmy@openfireserver.eu" from="jürgen@openfireserver.eu/f8c64ccb">
<operation xmlns="http://www.openfireserver.eu/ns/xmpp-rest"></operation>
<part xmlns="http://www.openfireserver.eu/ns/xmpp-rest"></part>
<part xmlns="http://www.openfireserver.eu/ns/xmpp-rest"></part>
<part xmlns="http://www.openfireserver.eu/ns/xmpp-rest"></part>
</message>

我尝试创建一个OperationExtension并在创建连接之前设置它:

OperationProvider o = new OperationProvider();
ProviderManager.getInstance().addExtensionProvider(o.getExtension().getElementName(),o.getExtension().getNamespace(), o);

OperationProvider看起来像这样进行测试,但我的断点永远不会被击中: - (

public class OperationProvider implements PacketExtensionProvider {

    private OperationExtension extension = new OperationExtension();

    @Override
    public PacketExtension parseExtension(XmlPullParser xmlparser) throws Exception {
        OperationExtension o = new OperationExtension();
        System.out.println("YAAAA + " + xmlparser.getText());
        String text = xmlparser.nextText();
        while (text != null)
        {
            System.out.println("YAAAA + " + text);
            text = xmlparser.nextText();
        }
        return o;
    }

    public OperationExtension getExtension() {
        return extension;
    }

    public void setExtension(OperationExtension extension) {
        this.extension = extension;
    }

}

OperationExtension本身非常基本(在这里设置断点,希望它们有时会被击中,但不起作用):

public class OperationExtension implements PacketExtension {

    public static final String NAMESPACE = "http://www.openfireserver.eu/ns/xmpp-rest";

    public String getElementName()
    {
        return "Operation"; // <-- here was my error, it should say (lower-case) "operation"
    }

    public String getNamespace()
    {
        return NAMESPACE;
    }

    @Override
    public String toXML() {
        return "<Operation>GET</Operation>"; // this is also just mockup with a breakpoint ;-)
    }

}

,但也没有调用toXml()方法。正如一些可用的文档建议的那样,我将一个smack.properties文件放在项目的/ src路径中的META-INF文件夹中,我把它看起来像这样:

<?xml version="1.0"?>
<extensionProvider>
      <elementName>operation</elementName>
      <namespace>http://www.openfireserver.eu/ns/xmpp-rest</namespace>
      <className>adventure.messagerouting.XmppExtensions.OperationExtension</className>
   </extensionProvider>
   <extensionProvider>
       <elementName>part</elementName>
       <namespace>http://www.openfireserver.eu/ns/xmpp-rest</namespace>
       <className>adventure.messagerouting.XmppExtensions.PartExtension</className>
</extensionProvider>

我可以说我的提供商已在ProviderManager.getInstance().getExtensionProviders();注册,但我不能说为什么它的代码永远不会被调用。

  1. 我在这里做错了吗?为什么我的属性和标签内容没有到达smack?
  2. OpenFire是否有可能过滤掉某些内容?

2 个答案:

答案 0 :(得分:2)

我认为您还可以使用PacketExtension扩展自定义消息数据包。

Message message = new Message();
DefaultPacketExtension yourExt = new DefaultPacketExtension("your_ext", "com:your:ext:namespace");
yourExt.setValue("<XML element name>", <XML element value>);
messgae.addExtension(yourExt);

答案 1 :(得分:1)

简而言之,它是String中的大写小写错字,Robin通过在评论中询问详细信息帮助我找到它,并且上面的代码可行。谢谢罗宾!