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17 package edu.internet2.middleware.shibboleth.common.config.attribute.resolver;
18
19 import java.util.ArrayList;
20 import java.util.List;
21 import java.util.Map;
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23 import javax.xml.namespace.QName;
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25 import org.opensaml.xml.util.DatatypeHelper;
26 import org.opensaml.xml.util.XMLHelper;
27 import org.slf4j.Logger;
28 import org.slf4j.LoggerFactory;
29 import org.springframework.beans.factory.support.AbstractBeanDefinition;
30 import org.springframework.beans.factory.support.BeanDefinitionBuilder;
31 import org.springframework.beans.factory.xml.AbstractSingleBeanDefinitionParser;
32 import org.springframework.beans.factory.xml.ParserContext;
33 import org.w3c.dom.Element;
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38 public abstract class AbstractResolutionPlugInBeanDefinitionParser extends AbstractSingleBeanDefinitionParser {
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41 public static final QName DEPENDENCY_ELEMENT_NAME = new QName(AttributeResolverNamespaceHandler.NAMESPACE,
42 "Dependency");
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45 private final Logger log = LoggerFactory.getLogger(AbstractResolutionPlugInBeanDefinitionParser.class);
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52 protected final void doParse(Element config, ParserContext parserContext, BeanDefinitionBuilder builder) {
53 String pluginId = DatatypeHelper.safeTrimOrNullString(config.getAttributeNS(null, "id"));
54 log.info("Parsing configuration for {} plugin with ID: {}", config.getLocalName(), pluginId);
55 builder.addPropertyValue("pluginId", pluginId);
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57 Map<QName, List<Element>> children = XMLHelper.getChildElements(config);
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59 List<String> dependencyIds = parseDependencies(children.get(DEPENDENCY_ELEMENT_NAME));
60 if(dependencyIds != null && !dependencyIds.isEmpty()){
61 log.debug("Dependencies for plugin {}: {}", pluginId, dependencyIds);
62 builder.addPropertyValue("dependencyIds", dependencyIds);
63 }else{
64 log.debug("Dependencies for plugin {}: none", pluginId);
65 }
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67 doParse(pluginId, config, children, builder, parserContext);
68 }
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80 protected abstract void doParse(String pluginId, Element pluginConfig,
81 Map<QName, List<Element>> pluginConfigChildren, BeanDefinitionBuilder pluginBuilder,
82 ParserContext parserContext);
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85 protected String resolveId(Element element, AbstractBeanDefinition definition, ParserContext parserContext) {
86 return element.getAttributeNS(null, "id");
87 }
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96 protected List<String> parseDependencies(List<Element> elements) {
97 if (elements == null || elements.size() == 0) {
98 return null;
99 }
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101 List<String> dependencyIds = new ArrayList<String>();
102 for (Element dependency : elements) {
103 dependencyIds.add(DatatypeHelper.safeTrimOrNullString(dependency.getAttributeNS(null, "ref")));
104 }
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106 return dependencyIds;
107 }
108 }