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1 package org.jbpm.context.exe;
2
3 import java.io.BufferedReader  ;
4 import java.io.IOException ;
5 import java.io.InputStream ;
6 import java.io.InputStreamReader ;
7 import java.util.ArrayList ;
8 import java.util.List ;
9 import java.util.StringTokenizer ;
10
11 import org.jbpm.db.hibernate.Converters;
12 import org.jbpm.instantiation.ClassLoaderUtil;
13
14
17 public class JbpmType {
18
19 private static List jbpmTypes = null;
20
21 public String variableClassName = null;
22 public Class variableClass = null;
23 public Converter converter = null;
24 public Class variableInstanceClass = null;
25
26 public JbpmType(String line) {
27 List stringTokens = new ArrayList ();
29 StringTokenizer tokenizer = new StringTokenizer (line, " ");
30 while (tokenizer.hasMoreTokens()) {
31 stringTokens.add(tokenizer.nextToken().trim());
32 }
33
34 if ( (stringTokens.size()<2)
35 || (stringTokens.size()>3) ) {
36 throw new RuntimeException ("invalid format in jbpm.varmapping.properties of line '"+line+"'");
37 }
38 this.variableClassName = (String ) stringTokens.get(0);
39
40 if ( (! this.variableClassName.startsWith("["))
42 && (! this.variableClassName.startsWith("{")) ) {
43 this.variableClass = ClassLoaderUtil.loadClass(variableClassName);
44 }
45
46 if (stringTokens.size()==2) {
47 this.variableInstanceClass = getVariableInstanceClass((String ) stringTokens.get(1));
48 } else {
49 this.converter = getConverter((String ) stringTokens.get(1));
50 this.variableInstanceClass = getVariableInstanceClass((String ) stringTokens.get(2));
51 }
52 }
53
54 private Converter getConverter(String converterClassName) {
55 return Converters.getConverterByClassName(converterClassName);
56 }
57
58 private Class getVariableInstanceClass(String variableInstanceClassName) {
59 return ClassLoaderUtil.loadClass(variableInstanceClassName);
60 }
61
62 public static List getJbpmTypes() {
63 if (jbpmTypes==null) {
64 jbpmTypes = new ArrayList ();
65 InputStream is = ClassLoaderUtil.getStream("jbpm.varmapping.properties", "org/jbpm/context/exe");
66 try {
67 BufferedReader bufferedReader = new BufferedReader (new InputStreamReader (is));
68 String line = bufferedReader.readLine();
69 while(line!=null) {
70 line = line.trim();
71 if ( !line.startsWith("#")
72 && (line.length()!=0)) {
73 jbpmTypes.add(new JbpmType(line));
74 }
75 line = bufferedReader.readLine();
76 }
77 } catch (IOException e) {
78 throw new RuntimeException ("couldn't parse the jbpm.varmapping.properties", e);
79 } finally {
80 try {
81 is.close();
82 } catch (IOException e) {
83 e.printStackTrace();
84 }
85 }
86 }
87 return jbpmTypes;
88 }
89 }
90 |
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