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17 package edu.internet2.middleware.shibboleth.common.config;
18
19 import javax.xml.parsers.DocumentBuilder;
20 import javax.xml.parsers.DocumentBuilderFactory;
21
22 import org.opensaml.xml.parse.ClasspathResolver;
23 import org.slf4j.Logger;
24 import org.slf4j.LoggerFactory;
25 import org.springframework.beans.factory.xml.DocumentLoader;
26 import org.w3c.dom.Document;
27 import org.xml.sax.EntityResolver;
28 import org.xml.sax.ErrorHandler;
29 import org.xml.sax.InputSource;
30 import org.xml.sax.SAXException;
31 import org.xml.sax.SAXParseException;
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36 public class SpringDocumentLoader implements DocumentLoader {
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39 private final Logger log = LoggerFactory.getLogger(SpringDocumentLoader.class);
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42 public Document loadDocument(InputSource inputSource, EntityResolver entityResolver, ErrorHandler errorHandler,
43 int validationMode, boolean namespaceAware) throws Exception {
44 DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
45 factory.setAttribute("http://java.sun.com/xml/jaxp/properties/schemaLanguage",
46 "http://www.w3.org/2001/XMLSchema");
47 factory.setCoalescing(true);
48 factory.setIgnoringComments(true);
49 factory.setNamespaceAware(true);
50 factory.setValidating(true);
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52 DocumentBuilder builder = factory.newDocumentBuilder();
53 builder.setErrorHandler(new LoggingErrorHandler(log));
54 builder.setEntityResolver(new ClasspathResolver());
55 return builder.parse(inputSource);
56 }
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61 public class LoggingErrorHandler implements ErrorHandler{
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63
64 private Logger log;
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71 public LoggingErrorHandler(Logger logger){
72 log = logger;
73 }
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76 public void error(SAXParseException exception) throws SAXException {
77 log.trace("Error parsing XML", exception);
78 throw exception;
79 }
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82 public void fatalError(SAXParseException exception) throws SAXException {
83 log.trace("Fatal XML parsing XML error", exception);
84 throw exception;
85 }
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88 public void warning(SAXParseException exception) throws SAXException {
89 log.trace("XML parsing warning", exception);
90 throw exception;
91 }
92 }
93 }