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1 package com.calipso.xmleditor;
2
3 import org.exolab.castor.xml.schema.*;
4
5 import java.util.Enumeration  ;
6
7
14
15 public class SchemaRootSearcher {
16
17 public static String searchRootFrom(Schema schema) {
18 String root = null;
19 Enumeration enumeration = schema.getElementDecls();
20 for(int i = 0 ; enumeration.hasMoreElements() ; i++) {
21 ElementDecl elemenentDecl = (ElementDecl) enumeration.nextElement();
22 boolean possibleRoot = isRoot(elemenentDecl.getName(), schema.getElementDecls(), i);
23 if(possibleRoot) {
24 root = elemenentDecl.getName();
25 System.out.println(root);
26 break;
27 }
28 }
29 return root;
30 }
31
32 private static boolean isRoot(String current, Enumeration enumeration, int j) {
33 int i;
34 int count = 0;
35 for(i = 0 ; enumeration.hasMoreElements() ; i ++) {
36 if(i != j) {
37 ElementDecl elementDecl = (ElementDecl) enumeration.nextElement();
38 XMLType xmlType = elementDecl.getType();
39 if(xmlType != null) {
40 if(xmlType.isComplexType()) {
41 ComplexType type = (ComplexType) elementDecl.getType();
42 Enumeration elements = type.enumerate();
43 if(!isElementIncluded(elements, current)) {
44 count ++;
45 }
46 }
47 }
48 }
49 }
50 if(count == i - 1) {
51 return true;
52 }
53 return false;
54 }
55
56 private static boolean isElementIncluded(Enumeration elements, String current) {
57 boolean found = false;
58 while(elements.hasMoreElements()) {
59 Object object = elements.nextElement();
60 if(object instanceof Group) {
61 Group group = (Group) object;
62 ContentModelGroup modelGroup = group.getContentModelGroup();
63 Enumeration enumeration = modelGroup.enumerate();
64 if(isElementIncluded(enumeration, current)) {
65 found = true;
66 }
67 } else if(object instanceof ElementDecl) {
68 ElementDecl elementDecl = (ElementDecl) object;
69 if(elementDecl.getName().equals(current)) {
70 return true;
71 }
72 }
73 }
74 return found;
75 }
76 }
77 |
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