1 package com.atlassian.jira.plugin;
2
3 import java.util.List;
4
5 import org.dom4j.Element;
6
7 import com.atlassian.plugin.PluginParseException;
8
9 public class PluginParserAssertions {
10
11 public static void assertElementExists(Element element, String elementName) throws PluginParseException {
12 List subElements = element.elements(elementName);
13 assertElementExists(subElements, elementName);
14 }
15
16 public static void assertElementExists(List subElements, String elementName) throws PluginParseException {
17 if (subElements.size() == 0) {
18 throw new PluginParseException("Element [" + elementName + "] is missing.");
19 }
20 }
21
22 public static void assertElementOccursOnce(Element element, String elementName) throws PluginParseException {
23 List subElements = element.elements(elementName);
24 assertElementOccursOnce(subElements, elementName);
25 }
26
27 public static void assertElementOccursOnce(List subElements, String elementName) throws PluginParseException {
28 if (subElements.size() != 1) {
29 throw new PluginParseException("Element [" + elementName + "] do not occurs once time.");
30 }
31 }
32
33
34 }