[1227] | 1 | package gov.va.med.edp.dao.rpc;
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| 2 |
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| 3 | import gov.va.med.edp.rpc.VistaLinkDaoSupport;
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| 4 | import gov.va.med.edp.vo.BigBoardDebugInfoVO;
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| 5 | import gov.va.med.edp.dao.ServerPackageVersionDao;
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| 6 |
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| 7 | import java.util.Map;
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| 8 | import java.util.HashMap;
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| 9 | import java.io.StringReader;
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| 10 | import java.io.IOException;
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| 11 |
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| 12 | import org.w3c.dom.Document;
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| 13 | import org.w3c.dom.Element;
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| 14 | import org.xml.sax.InputSource;
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| 15 | import org.xml.sax.SAXException;
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| 16 | import org.springframework.dao.DataAccessException;
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| 17 | import org.springframework.dao.DataRetrievalFailureException;
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| 18 |
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| 19 | import javax.xml.parsers.DocumentBuilder;
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| 20 | import javax.xml.parsers.DocumentBuilderFactory;
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| 21 | import javax.xml.parsers.ParserConfigurationException;
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| 22 |
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| 23 | /**
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| 24 | * TODO: document VistaLinkServerPackageVersionDao
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| 25 | */
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| 26 | public class VistaLinkServerPackageVersionDao extends VistaLinkBigBoardDao implements ServerPackageVersionDao {
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| 27 | private static final String UNABLE_TO_GET_VERSION_INFO = "unable to get version info";
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| 28 |
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| 29 | public String getServerPackageVersion(String stationNumber) {
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| 30 | Map params = new HashMap();
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| 31 | params.put("command", "initTracking");
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| 32 | String result = executeCommand(stationNumber, null, params);
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| 33 | return getVersion(result);
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| 34 | }
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| 35 |
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| 36 | public BigBoardDebugInfoVO getVistaLinkConnectionInfo(String stationNumber) throws DataAccessException {
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| 37 | return getRpcTemplate().getVistaLinkConnectionInfo(stationNumber, EDPTRACKING_APPLICATION_USER);
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| 38 | }
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| 39 |
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| 40 | private String getVersion(String result) {
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| 41 | Document doc = buildDocument(result);
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| 42 | return getVersion(doc);
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| 43 | }
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| 44 |
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| 45 | private Element getUserElement(Document doc) {
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| 46 | return (Element) doc.getDocumentElement().getElementsByTagName("user").item(0);
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| 47 | }
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| 48 |
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| 49 | private String getVersion(Document doc) {
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| 50 | Element user = getUserElement(doc);
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| 51 | if (user == null) return null;
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| 52 | return user.getAttribute("version");
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| 53 | }
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| 54 |
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| 55 | private Document buildDocument(String result) {
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| 56 | try {
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| 57 | DocumentBuilder builder = DocumentBuilderFactory.newInstance().newDocumentBuilder();
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| 58 | return builder.parse(new InputSource(new StringReader("<results>" + result + "</results>")));
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| 59 | } catch (ParserConfigurationException e) {
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| 60 | throw new DataRetrievalFailureException(UNABLE_TO_GET_VERSION_INFO, e);
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| 61 | } catch (IOException e) {
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| 62 | throw new DataRetrievalFailureException(UNABLE_TO_GET_VERSION_INFO, e);
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| 63 | } catch (SAXException e) {
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| 64 | throw new DataRetrievalFailureException(UNABLE_TO_GET_VERSION_INFO, e);
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| 65 | }
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| 66 | }
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| 67 |
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| 68 | }
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