/jboss-as-7.1.1.Final/deployment-scanner/src/main/java/org/jboss/as/server/deployment/scanner/XmlCompletionScanner.java

 1package org.jboss.as.server.deployment.scanner;
 2
 3import java.io.File;
 4import java.io.IOException;
 5
 6import javax.xml.parsers.ParserConfigurationException;
 7import javax.xml.parsers.SAXParser;
 8import javax.xml.parsers.SAXParserFactory;
 9
10import org.xml.sax.SAXException;
11import org.xml.sax.SAXParseException;
12import org.xml.sax.helpers.DefaultHandler;
13
14/**
15 * Determines if an XML document is well formed, to prevent half copied XML files from being deployed
16 *
17 * @author Stuart Douglas
18 */
19public class XmlCompletionScanner {
20
21
22    public static boolean isCompleteDocument(final File file) throws IOException {
23        ErrorHandler handler = new ErrorHandler();
24        try {
25            SAXParserFactory factory = SAXParserFactory.newInstance();
26            factory.setValidating(false);
27            final SAXParser parser = factory.newSAXParser();
28            parser.parse(file, handler);
29        } catch (ParserConfigurationException e) {
30            throw new RuntimeException(e);
31        } catch (SAXException e) {
32            DeploymentScannerLogger.ROOT_LOGGER.debugf(e, "Exception parsing scanned XML document %s", file);
33            return false;
34        }
35        return !handler.error;
36    }
37
38    private static class ErrorHandler extends DefaultHandler {
39
40        private boolean error = false;
41
42        @Override
43        public void error(final SAXParseException e) throws SAXException {
44            error = true;
45        }
46
47    }
48}