drools引擎使用决策表

package com.xxx.yyyy;
  2 
  3 import java.io.File;
  4 import java.io.FileInputStream;
  5 import java.io.InputStream;
  6 import java.util.Arrays;
  7 import java.util.Collection;
  8 import java.util.HashMap;
  9 import java.util.Map;
 10 import junit.framework.Assert;
 11 import org.drools.KnowledgeBase;
 12 import org.drools.KnowledgeBaseFactory;
 13 import org.drools.builder.DecisionTableConfiguration;
 14 import org.drools.builder.DecisionTableInputType;
 15 import org.drools.builder.KnowledgeBuilder;
 16 import org.drools.builder.KnowledgeBuilderFactory;
 17 import org.drools.builder.ResourceType;
 18 import org.drools.definition.KnowledgePackage;
 19 import org.drools.io.ResourceFactory;
 20 import org.drools.runtime.StatelessKnowledgeSession;
 21 import org.junit.Test;
 22 import org.junit.runner.RunWith;
 23 import org.junit.runners.Parameterized;
 24 import org.junit.runners.Parameterized.Parameters;
 25 
 26 @RunWith(Parameterized.class)
 27 public class IsP4PTest
 28 {
 29     private IsP4P param;
 30 
 31     private String extected;
 32 
 33     public IsP4PTest(IsP4P param, String extected)
 34     {
 35         this.param = param;
 36         this.extected = extected;
 37     }
 38 public Map<String, Object> getParams()
 39         {
 40             Map<String, Object> params = new HashMap<String, Object>();
 41 
 42             params.put("productLine", productLine);
 43             params.put("productType", productType);
 44             params.put("playType", playType);
 45 
 46             return params;
 47         }
 48 public void testExcel(String fileName, Map<String, Object> params)
 49             throws Exception
 50     {
 51         System.out.println("---------------begin------------------------");
 52 
 53         DecisionTableConfiguration dtableconfiguration = KnowledgeBuilderFactory
 54                 .newDecisionTableConfiguration();
 55 dtableconfiguration.setInputType(DecisionTableInputType.XLS);
 56         final KnowledgeBuilder kbuilder = KnowledgeBuilderFactory
 57                 .newKnowledgeBuilder();
 58 File file = new File(
 59                 "F:\\juny.qu\\rule_workspace\\com.deppon.rules\\src\\main\\java\\com\\xxx\\yyyy\\"
 60                         + fileName);
 61         InputStream is = new FileInputStream(file);
 62 kbuilder.add(ResourceFactory.newInputStreamResource(is, "UTF-8"),
 63                 ResourceType.DTABLE);
 64         if (kbuilder.hasErrors())
 65         {
 66             System.out.println(kbuilder.getErrors().toString());
 67         }
 68 Collection<KnowledgePackage> pkgs = kbuilder.getKnowledgePackages();
 69         KnowledgeBase kbase = KnowledgeBaseFactory.newKnowledgeBase();
 70         kbase.addKnowledgePackages(pkgs);
 71 
 72 StatelessKnowledgeSession ksession = kbase
 73                 .newStatelessKnowledgeSession();
 74         ksession.execute(Arrays.asList(new Object[] { params }));
 75 
 76 System.out.println("---------------end------------------------");
 77 }
 78 
 79 
 80 @Parameters
 81     public static Collection<?> contructData()
 82     {
 83 return Arrays.asList(new Object[][] {
 84                 { new IsP4P("搜索推广", "true", "null"), "true" },
 85                 { new IsP4P("网盟推广", "true", "null"), "true" },
 86                 { new IsP4P("掘金推广", "true", "非轮播"), "false" },
 87                 { new IsP4P("其他", "false", "其他"), "other" } });
 88 }
 89 
 90 @Test
 91     public void testP4P() throws Exception
 92     {
 93         Map<String, Object> params = new HashMap<String, Object>();
 94         params.putAll(param.getParams());
 95         testExcel("ka/isP4P.xls", params);
 96         Assert.assertEquals(extected, params.get("isP4P"));
 97     }
 98 }
 99 
100 

 1 package com.xxx.yyyy;
 2 
 3 import java.io.File;
 4 import java.io.FileInputStream;
 5 import java.io.FileNotFoundException;
 6 import java.io.InputStream;
 7 
 8 import org.drools.decisiontable.InputType;
 9 import org.drools.decisiontable.SpreadsheetCompiler;
10 import org.junit.Test;
11 
12 public class SpreadsheetCompilerTest {
13 
14 @Test
15     public void compile() throws FileNotFoundException{
16         //File file = new File("F:\\juny.qu\\rule_workspace\\com.deppon.rules\\src\\main\\java\\com\\xxx\\yyyy\\ka\\isP4P.xls");
17         //File file = new File("F:\\collections_study\\规则引擎系统开发小组\\规则引擎doc\\02开发\\06-详细设计\\增值服务折扣测试1.xls");
18         File file = new File("F:\\rules.xlsx");
19         
20         InputStream is = new FileInputStream(file);
21         
22         SpreadsheetCompiler converter = new SpreadsheetCompiler();
23         String drl = converter.compile(is, InputType.XLS); //--------exception here-------- 
24         System.out.println("\n\n" + drl);
25         
26     }
27 
28 }

运行结果如下：package rule_table;

 

• 什么时候考虑使用规则表

一个典型的规则表的格式

    
 
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