GATE插件创建

Question

我想为GATE编写我的第一个插件，但不知道如何开始:从这个“教程”https://gate.ac.uk/sale/tao/splitch12.html#x16-32100012.3.2中，我复制并粘贴了给定的源代码，创建了一个.jar文件，并将它与一个.xml文件放在“plugin”-directory下的一个新目录中。.xml-file如下所示：

<?xml version="1.0"?>
<CREOLE-DIRECTORY>  
  <CREOLE>
    <JAR SCAN="true">cooccurrences.jar</JAR>  
  </CREOLE>
</CREOLE-DIRECTORY>

当我尝试将它加载到GATE中时，我得到的结果是：

gate.util.GateException: couldn't open creole.xml
    at gate.creole.CreoleRegisterImpl.registerDirectories(CreoleRegisterImpl.java:298)
    at gate.creole.CreoleRegisterImpl.registerDirectories(CreoleRegisterImpl.java:314)
    at gate.gui.creole.manager.AvailablePlugins.updateAvailablePlugins(AvailablePlugins.java:615)
    at gate.gui.creole.manager.PluginUpdateManager$3.run(PluginUpdateManager.java:461)
Caused by: java.lang.ClassCastException: class gate.cooccurrences.Cooccurrences
    at java.lang.Class.asSubclass(Class.java:3293)
    at gate.creole.ResourceData.getResourceClass(ResourceData.java:233)
    at gate.creole.CreoleRegisterImpl.put(CreoleRegisterImpl.java:423)
    at gate.creole.CreoleRegisterImpl.put(CreoleRegisterImpl.java:78)
    at gate.creole.CreoleXmlHandler.endElement(CreoleXmlHandler.java:320)
    at org.jdom.output.SAXOutputter.endElement(SAXOutputter.java:1077)
    at org.jdom.output.SAXOutputter.element(SAXOutputter.java:905)
    at org.jdom.output.SAXOutputter.elementContent(SAXOutputter.java:1126)
    at org.jdom.output.SAXOutputter.elementContent(SAXOutputter.java:1098)
    at org.jdom.output.SAXOutputter.element(SAXOutputter.java:897)
    at org.jdom.output.SAXOutputter.output(SAXOutputter.java:621)
    at gate.creole.CreoleRegisterImpl.processFullCreoleXmlTree(CreoleRegisterImpl.java:375)
    at gate.creole.CreoleRegisterImpl.parseDirectory(CreoleRegisterImpl.java:345)
    at gate.creole.CreoleRegisterImpl.registerDirectories(CreoleRegisterImpl.java:292)

我是不是漏掉了什么？除了JAR和XML之外，我还需要什么？

Answer 1

从错误消息中可以看出，您的类gate.cooccurrences.Cooccurrences不是gate.Resource的子类。这是强制性的，否则GATE不能处理你的东西...