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17 package edu.internet2.middleware.shibboleth.common.config.attribute.resolver;
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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 log.debug("Setting the following attribute definition dependencies for plugin {}: {}", pluginId, dependencyIds);
61 builder.addPropertyValue("dependencyIds", dependencyIds);
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63 doParse(pluginId, config, children, builder, parserContext);
64 }
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76 protected abstract void doParse(String pluginId, Element pluginConfig,
77 Map<QName, List<Element>> pluginConfigChildren, BeanDefinitionBuilder pluginBuilder,
78 ParserContext parserContext);
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81 protected String resolveId(Element element, AbstractBeanDefinition definition, ParserContext parserContext) {
82 return element.getAttributeNS(null, "id");
83 }
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92 protected List<String> parseDependencies(List<Element> elements) {
93 if (elements == null || elements.size() == 0) {
94 return null;
95 }
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97 List<String> dependencyIds = new ArrayList<String>();
98 for (Element dependency : elements) {
99 dependencyIds.add(DatatypeHelper.safeTrimOrNullString(dependency.getAttributeNS(null, "ref")));
100 }
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102 return dependencyIds;
103 }
104 }