Example usage for org.apache.solr.handler.loader XMLLoader readDoc

Introduction

In this page you can find the example usage for org.apache.solr.handler.loader XMLLoader readDoc.

Prototype

public SolrInputDocument readDoc(XMLStreamReader parser) throws XMLStreamException 

Source Link

Document

Given the input stream, read a document

Usage

From source file:org.roda.core.index.utils.SolrUtils.java

public static SolrInputDocument getDescriptiveMetadataFields(Binary binary, String metadataType,
        String metadataVersion) throws GenericException {
    SolrInputDocument doc;/*from  ww  w  .  j  a  va2 s.c  om*/

    Map<String, String> parameters = new HashMap<>();
    parameters.put("prefix", RodaConstants.INDEX_OTHER_DESCRIPTIVE_DATA_PREFIX);
    Reader transformationResult = RodaUtils.applyMetadataStylesheet(binary,
            RodaConstants.CORE_CROSSWALKS_INGEST, metadataType, metadataVersion, parameters);

    try {
        XMLLoader loader = new XMLLoader();
        XMLStreamReader parser = XMLInputFactory.newInstance().createXMLStreamReader(transformationResult);

        boolean parsing = true;
        doc = null;
        while (parsing) {
            int event = parser.next();

            if (event == XMLStreamConstants.END_DOCUMENT) {
                parser.close();
                parsing = false;
            } else if (event == XMLStreamConstants.START_ELEMENT) {
                String currTag = parser.getLocalName();
                if ("doc".equals(currTag)) {
                    doc = loader.readDoc(parser);
                }
            }
        }

    } catch (XMLStreamException | FactoryConfigurationError e) {
        throw new GenericException("Could not process descriptive metadata binary " + binary.getStoragePath(),
                e);
    } finally {
        IOUtils.closeQuietly(transformationResult);
    }

    return doc == null ? new SolrInputDocument() : validateDescriptiveMetadataFields(doc);
}

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From source file:org.roda.core.index.utils.SolrUtils.java

public static SolrInputDocument premisToSolr(PreservationMetadataType preservationMetadataType, AIP aip,
        String representationUUID, String fileUUID, Binary binary) throws GenericException {
    SolrInputDocument doc;// ww w . java  2  s.co  m

    Map<String, String> stylesheetOpt = new HashMap<>();
    stylesheetOpt.put(RodaConstants.PRESERVATION_EVENT_OBJECT_CLASS,
            PreservationMetadataEventClass.REPOSITORY.toString());

    if (aip != null) {
        stylesheetOpt.put(RodaConstants.PRESERVATION_EVENT_OBJECT_CLASS,
                PreservationMetadataEventClass.AIP.toString());
        stylesheetOpt.put(RodaConstants.PRESERVATION_EVENT_AIP_ID, aip.getId());

        if (representationUUID != null) {
            stylesheetOpt.put(RodaConstants.PRESERVATION_EVENT_REPRESENTATION_UUID, representationUUID);
            stylesheetOpt.put(RodaConstants.PRESERVATION_EVENT_OBJECT_CLASS,
                    PreservationMetadataEventClass.REPRESENTATION.toString());
        }

        if (fileUUID != null) {
            stylesheetOpt.put(RodaConstants.PRESERVATION_EVENT_FILE_UUID, fileUUID);
            stylesheetOpt.put(RodaConstants.PRESERVATION_EVENT_OBJECT_CLASS,
                    PreservationMetadataEventClass.FILE.toString());
        }
    }

    Reader reader = null;

    try {
        reader = RodaUtils.applyMetadataStylesheet(binary, RodaConstants.CORE_CROSSWALKS_INGEST_OTHER,
                RodaConstants.PREMIS_METADATA_TYPE, RodaConstants.PREMIS_METADATA_VERSION, stylesheetOpt);

        XMLLoader loader = new XMLLoader();
        XMLStreamReader parser = XMLInputFactory.newInstance().createXMLStreamReader(reader);

        boolean parsing = true;
        doc = null;
        while (parsing) {
            int event = parser.next();

            if (event == XMLStreamConstants.END_DOCUMENT) {
                parser.close();
                parsing = false;
            } else if (event == XMLStreamConstants.START_ELEMENT && "doc".equals(parser.getLocalName())) {
                doc = loader.readDoc(parser);
            }

        }

    } catch (XMLStreamException | FactoryConfigurationError e) {
        throw new GenericException("Could not process PREMIS " + binary.getStoragePath(), e);
    } finally {
        IOUtils.closeQuietly(reader);
    }

    if (preservationMetadataType == PreservationMetadataType.EVENT && doc != null) {
        try {
            List<LinkingIdentifier> agents = PremisV3Utils.extractAgentsFromEvent(binary);
            for (LinkingIdentifier id : agents) {
                doc.addField(RodaConstants.PRESERVATION_EVENT_LINKING_AGENT_IDENTIFIER,
                        JsonUtils.getJsonFromObject(id));
            }
        } catch (org.roda.core.data.v2.validation.ValidationException e) {
            LOGGER.warn("Error setting linking agent field: {}", e.getMessage());
        }
        try {
            List<LinkingIdentifier> sources = PremisV3Utils.extractObjectFromEvent(binary);
            for (LinkingIdentifier id : sources) {
                doc.addField(RodaConstants.PRESERVATION_EVENT_LINKING_SOURCE_OBJECT_IDENTIFIER,
                        JsonUtils.getJsonFromObject(id));
            }
        } catch (org.roda.core.data.v2.validation.ValidationException e) {
            LOGGER.warn("Error setting linking source field: {}", e.getMessage());
        }
        try {
            List<LinkingIdentifier> outcomes = PremisV3Utils.extractObjectFromEvent(binary);
            for (LinkingIdentifier id : outcomes) {
                doc.addField(RodaConstants.PRESERVATION_EVENT_LINKING_OUTCOME_OBJECT_IDENTIFIER,
                        JsonUtils.getJsonFromObject(id));
            }
        } catch (org.roda.core.data.v2.validation.ValidationException e) {
            LOGGER.warn("Error setting linking outcome field: {}", e.getMessage());
        }

        // indexing active state and permissions
        if (aip != null) {
            doc.addField(RodaConstants.STATE, aip.getState().toString());
            setPermissions(aip.getPermissions(), doc);
        } else {
            doc.addField(RodaConstants.STATE, AIPState.ACTIVE);
        }
    }

    // set uuid from id defined in xslt
    if (doc != null) {
        doc.addField(RodaConstants.INDEX_UUID, doc.getFieldValue(RodaConstants.PRESERVATION_EVENT_ID));
    } else {
        doc = new SolrInputDocument();
    }

    return doc;
}

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