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1 package org.apache.axis2.om.util;
2
3 import org.apache.axis2.om.OMAttribute;
4 import org.apache.axis2.om.OMElement;
5 import org.apache.axis2.om.OMNamespace;
6 import org.apache.axis2.om.OMNode;
7 import org.apache.commons.logging.Log;
8 import org.apache.commons.logging.LogFactory;
9
10 import java.util.Iterator  ;
11
12
28 public class XMLComparator {
29
32 private Log log = LogFactory.getLog(getClass());
33
34
35 public boolean compare(OMElement elementOne, OMElement elementTwo) throws XMLComparisonException {
36 if(elementOne == null && elementTwo == null){
37 log.info("Both Elements are null.");
38 return true;
39 }
40 if(elementOne == null && elementTwo != null){
41 throw new XMLComparisonException("Element One is null and Element Two is not null");
42 }
43 if(elementOne != null && elementTwo == null){
44 throw new XMLComparisonException("Element Two is null and Element One is not null");
45 }
46
47 log.info("Now Checking "+ elementOne.getLocalName() + " and " + elementTwo.getLocalName() + "=============================");
48
49 log.info("Comparing Element Names .......");
50 compare("Elements names are not equal. ", elementOne.getLocalName(), elementTwo.getLocalName());
51
52 log.info("Comparing Namespaces .........");
53 compare("Element namespaces are not equal", elementOne.getNamespace(), elementTwo.getNamespace());
54
55 log.info("Comparing attributes .....");
56 compareAllAttributes(elementOne, elementTwo);
57
58 log.info("Comparing texts .....");
59 compare("Elements texts are not equal ", elementOne.getText(), elementTwo.getText());
60
61 log.info("Comparing Children ......");
62 compareAllChildren(elementOne, elementTwo);
63
64
65 return true;
66 }
67
68 private void compareAllAttributes(OMElement elementOne, OMElement elementTwo) throws XMLComparisonException {
69 compareAttibutes(elementOne, elementTwo);
70 compareAttibutes(elementTwo, elementOne);
71 }
72
73 private void compareAllChildren(OMElement elementOne, OMElement elementTwo) throws XMLComparisonException {
74 compareChildren(elementOne, elementTwo);
75 compareChildren(elementTwo, elementOne);
76 }
77
78 private void compareChildren(OMElement elementOne, OMElement elementTwo) throws XMLComparisonException {
79 Iterator elementOneChildren = elementOne.getChildren();
80 while (elementOneChildren.hasNext()) {
81 OMNode omNode = (OMNode) elementOneChildren.next();
82 if(omNode instanceof OMElement){
83 OMElement elementOneChild = (OMElement) omNode;
84 OMElement elementTwoChild = elementTwo.getFirstChildWithName(elementOneChild.getQName());
85 if(elementTwoChild == null){
86 throw new XMLComparisonException(" There is no " + elementOneChild.getLocalName() + " element under " + elementTwo.getLocalName());
87 }
88 compare(elementOneChild, elementTwoChild);
89 }
90 }
91 }
92
93
94 private void compareAttibutes(OMElement elementOne, OMElement elementTwo) throws XMLComparisonException {
95 Iterator attributes = elementOne.getAttributes();
96 while (attributes.hasNext()) {
97 OMAttribute omAttribute = (OMAttribute) attributes.next();
98 OMAttribute attr = elementTwo.getFirstAttribute(omAttribute.getQName());
99 if(attr == null){
100 throw new XMLComparisonException("Attributes are not the same in two elements. Attribute "+ omAttribute.getLocalName() + " != ");
101 }
102 }
103 }
104
105 private void compare(String failureNotice, String one, String two) throws XMLComparisonException {
106 if(!one.equals(two)){
107 throw new XMLComparisonException(failureNotice+ one + " != " + two);
108 }
109 }
110
111 private void compare(String failureNotice, OMNamespace one, OMNamespace two) throws XMLComparisonException {
112 if(one == null && two == null){
113 return;
114 }else if(one != null && two == null){
115 throw new XMLComparisonException("First Namespace is NOT null. But the second is null");
116 }else if(one == null && two != null){
117 throw new XMLComparisonException("First Namespace is null. But the second is NOT null");
118 }
119
120 if(!one.getName().equals(two.getName())){
121 throw new XMLComparisonException(failureNotice + one + " != " + two);
122 }
123
124 }
126 }
127 |
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