Metacat

import org.dataone.service.types.v1.ObjectInfo;

			Identifier guid = new Identifier();

			guid.setValue("testSearch." + System.currentTimeMillis());

			InputStream object = new ByteArrayInputStream("test".getBytes("UTF-8"));

			SystemMetadata sysmeta = createSystemMetadata(guid, session.getSubject(), object);

			// save it

			Identifier retGuid = CNodeService.getInstance(request).registerSystemMetadata(session, guid, sysmeta);

			assertEquals(guid.getValue(), retGuid.getValue());

			// search for it

			ObjectList objectList = CNodeService.getInstance(request).search(session, null, null);

			// check it

			assertNotNull(objectList);

			boolean result = false;

			for (ObjectInfo objectInfo: objectList.getObjectInfoList()) {

				Identifier pid = objectInfo.getIdentifier();

				if (pid.getValue().equals(guid.getValue())) {

					result = true;

					break;

				}

			assertTrue(result);

   * Search the metadata catalog for identifiers that match the criteria

   * 

   * @param session - the Session object containing the credentials for the Subject

   * @param queryType - An identifier for the type of query expression 

   *                    provided in the query

   * @param query -  The criteria for matching the characteristics of the 

   *                 metadata objects of interest

   * 

   * @return objectList - the list of objects matching the criteria

   * 

   * @throws InvalidToken

   * @throws ServiceFailure

   * @throws NotAuthorized

   * @throws InvalidRequest

   * @throws NotImplemented

    ObjectList objectList = null;

    try {

        objectList = 

          IdentifierManager.getInstance().querySystemMetadata(

              null, //startTime, 

              null, //endTime,

              null, //objectFormat, 

              false, //replicaStatus, 

              0, //start, 

              -1 //count

              );

    } catch (Exception e) {

      throw new ServiceFailure("4310", "Error querying system metadata: " + e.getMessage());

    }

      return objectList;

    //throw new NotImplemented("4281", "search not implemented");

    // the code block below is from an older implementation

    /*  This block commented out because of the EcoGrid circular dependency.

         *  For now, query will not be supported until the circularity can be

         *  resolved, probably by moving the ecogrid query syntax transformers

         *  directly into the Metacat codebase.  MBJ 2010-02-03

        try {

            EcogridQueryParser parser = new EcogridQueryParser(request

                    .getReader());

            parser.parseXML();

            QueryType queryType = parser.getEcogridQuery();

            EcogridJavaToMetacatJavaQueryTransformer queryTransformer = 

                new EcogridJavaToMetacatJavaQueryTransformer();

            QuerySpecification metacatQuery = queryTransformer

                    .transform(queryType);

            DBQuery metacat = new DBQuery();

            boolean useXMLIndex = (new Boolean(PropertyService

                    .getProperty("database.usexmlindex"))).booleanValue();

            String xmlquery = "query"; // we don't care the query in resultset,

            // the query can be anything

            PrintWriter out = null; // we don't want metacat result, so set out null

            // parameter: queryspecification, user, group, usingIndexOrNot

            StringBuffer result = metacat.createResultDocument(xmlquery,

                    metacatQuery, out, username, groupNames, useXMLIndex);

            // create result set transfer       

            String saxparser = PropertyService.getProperty("xml.saxparser");

            MetacatResultsetParser metacatResultsetParser = new MetacatResultsetParser(

                    new StringReader(result.toString()), saxparser, queryType

                            .getNamespace().get_value());

            ResultsetType records = metacatResultsetParser.getEcogridResult();

            System.out

                    .println(EcogridResultsetTransformer.toXMLString(records));

            response.setContentType("text/xml");

            out = response.getWriter();

            out.print(EcogridResultsetTransformer.toXMLString(records));

        } catch (Exception e) {

            e.printStackTrace();

        }*/