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package org.mule.config.spring.parsers.processors; |
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import org.mule.config.spring.parsers.PreProcessor; |
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import org.mule.config.spring.parsers.assembly.configuration.PropertyConfiguration; |
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import org.mule.config.spring.util.SpringXMLUtils; |
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import java.util.ArrayList; |
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import java.util.Arrays; |
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import java.util.Collection; |
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import java.util.HashSet; |
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import java.util.List; |
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import java.util.Set; |
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import org.w3c.dom.Attr; |
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import org.w3c.dom.Element; |
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import org.w3c.dom.NamedNodeMap; |
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public class CheckRequiredAttributes implements PreProcessor |
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{ |
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Collection<List<String>> attributeSets; |
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public CheckRequiredAttributes(String[][] attributeNames) |
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{ |
37 | 0 | super(); |
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|
39 | 0 | attributeSets = new ArrayList<List<String>>(); |
40 | 0 | for (int i = 0; i < attributeNames.length; i++) |
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{ |
42 | 0 | String[] currentSet = attributeNames[i]; |
43 | 0 | if (currentSet.length > 0) |
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{ |
45 | 0 | List<String> list = Arrays.asList(currentSet); |
46 | 0 | attributeSets.add(list); |
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} |
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} |
49 | 0 | } |
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public void preProcess(PropertyConfiguration config, Element element) |
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{ |
53 | 0 | Collection<List<String>> matchingSets = new ArrayList<List<String>>(); |
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|
55 | 0 | for (List<String> currentSet : attributeSets) |
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{ |
57 | 0 | if (containsAllRequiredAttributes(currentSet, element)) |
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{ |
59 | 0 | matchingSets.add(currentSet); |
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} |
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} |
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|
63 | 0 | if (matchingSets.size() == 0) |
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{ |
65 | 0 | throw new CheckRequiredAttributesException(element, attributeSets); |
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} |
67 | 0 | } |
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private boolean containsAllRequiredAttributes(List<String> currentSet, Element element) |
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{ |
71 | 0 | Set<String> attributes = collectAttributes(element); |
72 | 0 | if (attributes.size() == 0) |
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{ |
74 | 0 | return false; |
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} |
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|
79 | 0 | Set<String> remainingElementNames = new HashSet<String>(currentSet); |
80 | 0 | remainingElementNames.removeAll(attributes); |
81 | 0 | return (remainingElementNames.size() == 0); |
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} |
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private Set<String> collectAttributes(Element element) |
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{ |
86 | 0 | Set<String> attributeNames = new HashSet<String>(); |
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|
88 | 0 | NamedNodeMap attributes = element.getAttributes(); |
89 | 0 | for (int i = 0; i < attributes.getLength(); i++) |
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{ |
91 | 0 | String alias = SpringXMLUtils.attributeName((Attr) attributes.item(i)); |
92 | 0 | attributeNames.add(alias); |
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} |
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|
95 | 0 | return attributeNames; |
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} |
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98 | 0 | public static class CheckRequiredAttributesException extends IllegalStateException |
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{ |
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private static String summary(Collection<List<String>> attributeSets) |
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{ |
102 | 0 | StringBuilder buf = new StringBuilder(); |
103 | 0 | for (List<String> set : attributeSets) |
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{ |
105 | 0 | if (buf.length() > 0) |
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{ |
107 | 0 | buf.append(" "); |
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} |
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|
110 | 0 | if (set.isEmpty()) |
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{ |
112 | 0 | continue; |
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} |
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|
115 | 0 | buf.append(set.toString()); |
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} |
117 | 0 | return buf.toString(); |
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} |
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private CheckRequiredAttributesException(Element element, Collection<List<String>> attributeSets) |
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{ |
122 | 0 | super("Element " + SpringXMLUtils.elementToString(element) + |
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" must have all attributes for one of the sets: " + summary(attributeSets) + "."); |
124 | 0 | } |
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} |
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} |