src/main/java/eu/svjatoslav/inspector/xml/xsd/XSD.java

   1 package eu.svjatoslav.inspector.xml.xsd;
   2
   3 import java.io.FileInputStream;
   4 import java.io.FileNotFoundException;
   5 import java.io.IOException;
   6 import java.io.InputStream;
   7 import java.util.HashMap;
   8 import java.util.Map;
   9
  10 import javax.xml.parsers.DocumentBuilder;
  11 import javax.xml.parsers.DocumentBuilderFactory;
  12 import javax.xml.parsers.ParserConfigurationException;
  13
  14 import org.w3c.dom.Document;
  15 import org.xml.sax.SAXException;
  16
  17 public class XSD {
  18
  19         private static final String XMLNS_PREFIX = "xmlns:";
  20         Map<String, String> namespaces = new HashMap<String, String>();
  21
  22         private void detectNamespaces(final XmlElement xsdSchema) {
  23                 for (final String attributeName : xsdSchema.getAttributeNames())
  24
  25                         if (attributeName.startsWith(XMLNS_PREFIX)) {
  26                                 final String nameSpaceName = attributeName
  27                                                 .substring(XMLNS_PREFIX.length());
  28                                 namespaces.put(nameSpaceName,
  29                                                 xsdSchema.getAttributeValue(attributeName));
  30                         }
  31         }
  32
  33         public void parse(final InputStream inputStream) {
  34
  35                 final DocumentBuilderFactory builderFactory = DocumentBuilderFactory
  36                                 .newInstance();
  37
  38                 DocumentBuilder builder = null;
  39                 try {
  40                         builder = builderFactory.newDocumentBuilder();
  41                 } catch (final ParserConfigurationException e) {
  42                         e.printStackTrace();
  43                 }
  44
  45                 Document document;
  46                 try {
  47                         document = builder.parse(inputStream);
  48                 } catch (final SAXException e) {
  49                         e.printStackTrace();
  50                         return;
  51                 } catch (final IOException e) {
  52                         e.printStackTrace();
  53                         return;
  54                 }
  55
  56                 final XmlElement xsdSchema = new XmlElement(
  57                                 document.getDocumentElement());
  58
  59                 detectNamespaces(xsdSchema);
  60
  61                 System.out.println(xsdSchema.toString());
  62         }
  63
  64         public void parse(final String filePath) throws FileNotFoundException {
  65
  66                 final FileInputStream inputStream = new FileInputStream(filePath);
  67
  68                 parse(inputStream);
  69         }
  70
  71         @Override
  72         public String toString() {
  73                 final StringBuffer result = new StringBuffer();
  74
  75                 result.append("namespaces:\n");
  76
  77                 for (final Map.Entry<String, String> entry : namespaces.entrySet())
  78                         result.append("    " + entry.getKey() + " = " + entry.getValue()
  79                                         + "\n");
  80
  81                 return result.toString();
  82         }
  83
  84 }