Examples of org.fcrepo.server.storage.DOReader.GetDatastream()

Class org.fcrepo.server.storage.DOReader

Examples of org.fcrepo.server.storage.DOReader.GetDatastream()

org.fcrepo.server.storage.DOReader.GetDatastream()
Gets a particular Datastream in the digital object. If the date given is null, the most recent version of the datastream is given. If the date is non-null, the closest version of the Datastream to the specified date/time (without going over) is given. If no datastreams match the given criteria, null is returned. @param datastreamID The Datastream identifier @param versDateTime The date-time stamp to get appropriate Datastream version @return a particular Datastream in the digital object. @throws ServerException If any type of error occurred fulfilling the request.

    protected AbstractPolicy loadObjectPolicy(PolicyParser policyParser, String pid, boolean validate) throws ServerException {
        try {
            DOReader reader = m_repoReader.getReader(Server.USE_DEFINITIVE_STORE,
                                                     ReadOnlyContext.EMPTY,
                                                     pid);
            Datastream ds = reader.GetDatastream("POLICY", null);
            if (ds != null) {
                logger.debug("Using POLICY for " + pid);
                return policyParser.parse(ds.getContentStream(), validate);
            } else {
                return null;

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                                         asOfDateTime);


            DOReader r =
                    m_manager.getReader(Server.GLOBAL_CHOICE, context, pid);


            return r.GetDatastream(datastreamID, asOfDateTime);
        } finally {
            // Logger completion
            if (logger.isInfoEnabled()) {
                StringBuilder logMsg =
                        new StringBuilder("Completed getDatastream(");

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            DOReader r =
                    m_manager.getReader(Server.GLOBAL_CHOICE, context, pid);
            Date[] versionDates = r.getDatastreamVersions(datastreamID);
            Datastream[] versions = new Datastream[versionDates.length];
            for (int i = 0; i < versionDates.length; i++) {
                versions[i] = r.GetDatastream(datastreamID, versionDates[i]);
            }
            // sort, ascending
            Arrays.sort(versions, new DatastreamDateComparator());
            // reverse it (make it descend, so most recent date is element 0)
            Datastream[] out = new Datastream[versions.length];

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            logger.debug("Getting Reader");
            r = m_manager.getReader(Server.USE_DEFINITIVE_STORE, context, pid);
            logger.debug("Getting datastream:" + datastreamID + "date: "
                         + versionDate);
            Datastream ds = r.GetDatastream(datastreamID, versionDate);
            logger.debug("Got Datastream, comparing checksum");
            boolean check = ds.compareChecksum();
            logger.debug("compared checksum = " + check);


            return check ? ds.getChecksum() : "Checksum validation error";

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                    dsBindRule.pid == null ? dObj.GetObjectPID()
                                           : dsBindRule.pid;
            String dsId = dsBindRule.bindingKeyName;


            DOReader reader = m_manager.getReader(false, context, dsPid);
            Datastream ds = reader.GetDatastream(dsId, versDateTime);


            if (ds != null) {
                DisseminationBindingInfo bindingInfo =
                        new DisseminationBindingInfo();
                bindingInfo.DSBindKey = dsId;

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