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[2.26.x] Adds Gmd QueryResponseTransformer #6781

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Mar 20, 2024
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[2.26.x] Adds Gmd QueryResponseTransformer #6781

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17 changes: 16 additions & 1 deletion .../main/java/org/codice/ddf/spatial/ogc/csw/catalog/transformer/AbstractGmdTransformer.java
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Original file line number Diff line number Diff line change
Expand Up @@ -23,8 +23,10 @@
import ddf.catalog.data.BinaryContent;
import ddf.catalog.data.Metacard;
import ddf.catalog.data.impl.BinaryContentImpl;
import ddf.catalog.operation.SourceResponse;
import ddf.catalog.transform.CatalogTransformerException;
import ddf.catalog.transform.MetacardTransformer;
import ddf.catalog.transform.QueryResponseTransformer;
import java.io.ByteArrayInputStream;
import java.io.Serializable;
import java.io.StringWriter;
Expand All @@ -36,20 +38,33 @@
import org.codice.ddf.spatial.ogc.csw.catalog.common.GmdConstants;
import org.codice.ddf.spatial.ogc.csw.catalog.converter.CswRecordConverter;

public class AbstractGmdTransformer implements MetacardTransformer {
public class AbstractGmdTransformer implements MetacardTransformer, QueryResponseTransformer {

public static final String GML_PREFIX = "gml:";

public static final String GCO_PREFIX = GmdConstants.GCO_PREFIX + ":";

private Supplier<Converter> converterSupplier;

protected static final String TRANSFORM_EXCEPTION_MSG =
"Unable to transform from GMD Metadata to Metacard";

/** @param converterSupplier must be non-null */
public AbstractGmdTransformer(Supplier<Converter> converterSupplier) {
notNull(converterSupplier, "converterSupplier must be non-null");
this.converterSupplier = converterSupplier;
}

@Override
public BinaryContent transform(SourceResponse sourceResponse, Map<String, Serializable> map)
throws CatalogTransformerException {
if (sourceResponse.getResults() != null && sourceResponse.getResults().size() == 1) {
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the GMD Schema itself doesn't appear to support multiple metadata records in a single doc, but a possible improvement here would be to create a zip of all the results in the GMD XML format.

return transform(sourceResponse.getResults().get(0).getMetacard(), map);
} else {
throw new CatalogTransformerException(TRANSFORM_EXCEPTION_MSG);
}
}

@Override
public BinaryContent transform(Metacard metacard, Map<String, Serializable> arguments)
throws CatalogTransformerException {
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3 changes: 0 additions & 3 deletions ...rmer/src/main/java/org/codice/ddf/spatial/ogc/csw/catalog/transformer/GmdTransformer.java
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Original file line number Diff line number Diff line change
Expand Up @@ -85,9 +85,6 @@ public class GmdTransformer extends AbstractGmdTransformer implements InputTrans

private static final Logger LOGGER = LoggerFactory.getLogger(GmdTransformer.class);

private static final String TRANSFORM_EXCEPTION_MSG =
"Unable to transform from GMD Metadata to Metacard";

private static final Pattern WHITE_SPACE_PATTER = Pattern.compile("(\\s)+");

private static final Pattern NEW_LINE_PATTERN = Pattern.compile("(\\n)+");
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15 changes: 15 additions & 0 deletions ...g/spatial/csw/spatial-csw-transformer/src/main/resources/OSGI-INF/blueprint/blueprint.xml
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Expand Up @@ -211,5 +211,20 @@
<argument ref="writerProvider"/>
</bean>

<service ref="gmdInputTransformerTranformer"
interface="ddf.catalog.transform.QueryResponseTransformer">
<service-properties>
<entry key="id" value="gmd:MD_Metadata"/>
<entry key="mime-type" >
<list>
<value>text/xml</value>
<value>application/xml</value>
</list>
</entry>
<entry key="schema" value="http://www.isotc211.org/2005/gmd"/>
<entry key="displayName" value="GMD Metadata"/>

</service-properties>
</service>

</blueprint>