Drools6.4 dynamic loading rules (simple application of templates)

1. package com.sample; import java.io.Serializable; public class Message implements Serializable{ public static final int HELLO = 0; public static final int GOODBYE = 1; private String message; private int status; public String getMessage() { return message; } public int getStatus() { return status; } public void setMessage(String message) { this.message = message; } public void setStatus(int status) { this.status = status; } }
2. package com.sample; import java.io.Serializable; public class Message implements Serializable{ public static final int HELLO = 0; public static final int GOODBYE = 1; private String message; private int status; public String getMessage() { return message; } public int getStatus() { return status; } public void setMessage(String message) { this.message = message; } public void setStatus(int status) { this.status = status; } }
3. public class DataProviderCompilerTest {
4. public static void main(String[] args) {  
5. ArrayList<String[]> rows = new ArrayList<String[]>();  
6.        rows.add(new String[] { "1", "status == 0" });  
7.  
8.        MyDataProvider tdp = new MyDataProvider(rows);  
9.        DataProviderCompiler converter = new DataProviderCompiler();
10.        
11.         String drl = converter.compile(tdp, "/rules/rule_template_1.drl");  
12. ArrayList<String[]> rowss = new ArrayList<String[]>();  
13. rowss.add(new String[] { "2", "status == 1" });  
14.     tdp = new MyDataProvider(rowss);  
15. String drl2 = converter.compile(tdp, "/rules/rule_template_2.drl");  
17.        System.out.println(drl);  
18.        System.out.println(drl2);  
19.        
20.        KieServices kieServices = KieServices.Factory.get ();  
21.        KieResources resources = kieServices.getResources ();  
22.        KieModuleModel kieModuleModel = kieServices.newKieModuleModel (); // 1  
23.  
24.        KieBaseModel baseModel = kieModuleModel.newKieBaseModel("FileSystemKBase").addPackage("rules");//2
25.        baseModel.newKieSessionModel("FileSystemKSession");//3
26.        KieFileSystem fileSystem = kieServices.newKieFileSystem();
27.        String xml = kieModuleModel.toXML();  
28.        System.out.println(xml);//4  
29.        fileSystem.writeKModuleXML(xml);//5  
30.        String path = DataProviderCompilerTest.class.getClass().getResource("/").getPath();  
31.        fileSystem.write("src/main/resources/rules/rule1.drl", drl);  
32.        fileSystem.write("src/main/resources/rules/rule2.drl", drl2);  
33.        
34.        KieBuilder kb = kieServices.newKieBuilder(fileSystem);  
35.        kb.buildAll();//7  
36.        
37.        if (kb.getResults().hasMessages(Level.ERROR)) {  
38.            throw new RuntimeException("Build Errors:\n" + kb.getResults().toString());  
39.        }  
40.        KieContainer kContainer = kieServices.newKieContainer (kieServices.getRepository (). GetDefaultReleaseId ());  
41.  
42.        KieSession kSession = kContainer.newKieSession("FileSystemKSession");  
43.  
44.        Message message = new Message();  
45.        message.setMessage("Hello World");  
46.        message.setStatus(Message.GOODBYE);  
47.  
48.        kSession.insert(message);  
49.        kSession.fireAllRules();  
50.        kSession.dispose();  
51.   //   updateDrl(kieServices,kieModuleModel,kb, baseModel, kContainer,fileSystem);
52. //test();
53. //test();
54.     }
55. }