edu.ucsb.nceas.metacat.oaipmh.provider.server.catalog

## Class MetacatRecordFactory

- java.lang.Object
- - ORG.oclc.oai.server.catalog.RecordFactory
  - - edu.ucsb.nceas.metacat.oaipmh.provider.server.catalog.MetacatRecordFactory

-     public class MetacatRecordFactory
      extends ORG.oclc.oai.server.catalog.RecordFactory

  MetacatRecordFactory converts native Metacat documents to OAI-PMH records.

- - ### Field Summary

    - ### Fields inherited from class ORG.oclc.oai.server.catalog.RecordFactory

      `debug`

  - ### Constructor Summary

    Constructors
    Constructor and Description
    `MetacatRecordFactory(java.util.Properties properties)` Construct a MetacatRecordFactory capable of producing the Crosswalk(s) specified in the properties file.

  - ### Method Summary

    All Methods Instance Methods Concrete Methods
    Modifier and Type | Method and Description
    --- | ---
    `java.lang.String[]` | `createHeader(java.lang.Object nativeItem)` Convert a native "item" to a "record" String.
    `java.lang.String` | `fromOAIIdentifier(java.lang.String oaiIdentifier)` Utility method to parse the 'local identifier' from the OAI identifier
    `java.util.Iterator` | `getAbouts(java.lang.Object nativeItem)` Get the about elements from the item
    `java.lang.String` | `getDatestamp(java.lang.Object nativeItem)` get the datestamp from the item
    `java.lang.String` | `getLocalIdentifier(java.lang.Object nativeItem)` Extract the local identifier from the native item
    `java.lang.String` | `getOAIIdentifier(java.lang.Object nativeItem)` Construct an OAI identifier from the native item
    `java.lang.String` | `getOAIIdentifierOld(java.lang.Object nativeItem)` Construct an OAI identifier from the native item
    `java.util.Iterator` | `getSetSpecs(java.lang.Object nativeItem)` get the setspec from the item
    `boolean` | `isDeleted(java.lang.Object nativeItem)` Is the record deleted?
    `java.lang.String` | `quickCreate(java.lang.Object nativeItem, java.lang.String schemaLocation, java.lang.String metadataPrefix)` Allows classes that implement RecordFactory to override the default create() method.

    - ### Methods inherited from class ORG.oclc.oai.server.catalog.RecordFactory

      `create, create, create, create, createHeader, createHeader, createMetadata, createMetadata, createMetadata, getCrosswalks, getSchemaLocations, quickCreateMetadata`

    - ### Methods inherited from class java.lang.Object

      `clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

- - ### Constructor Detail

    - #### MetacatRecordFactory

          public MetacatRecordFactory(java.util.Properties properties)
                               throws java.lang.IllegalArgumentException

      Construct a MetacatRecordFactory capable of producing the Crosswalk(s) specified in the properties file.
      Parameters:
        `properties` - Contains information to configure the factory: specifically, the names of the crosswalk(s) supported
      Throws:
        `java.lang.IllegalArgumentException` - Something is wrong with the argument.

  - ### Method Detail

    - #### fromOAIIdentifier

          public java.lang.String fromOAIIdentifier(java.lang.String oaiIdentifier)

      Utility method to parse the 'local identifier' from the OAI identifier
      Specified by:
        `fromOAIIdentifier` in class `ORG.oclc.oai.server.catalog.RecordFactory`
      Parameters:
        `oaiIdentifier` - OAI identifier e.g. "urn:lsid:knb.ecoinformatics.org:knb-lter-gce:169"
      Returns:
        local identifier, e.g. "knb-lter-gce.169"

    - #### getOAIIdentifier

          public java.lang.String getOAIIdentifier(java.lang.Object nativeItem)

      Construct an OAI identifier from the native item
      Specified by:
        `getOAIIdentifier` in class `ORG.oclc.oai.server.catalog.RecordFactory`
      Parameters:
        `nativeItem` - native Item object
      Returns:
        OAI identifier, e.g. urn:lsid:knb.ecoinformatics.org:knb-lter-gce:169

    - #### getOAIIdentifierOld

          public java.lang.String getOAIIdentifierOld(java.lang.Object nativeItem)

      Construct an OAI identifier from the native item
      Parameters:
        `nativeItem` - native Item object
      Returns:
        OAI identifier

    - #### getLocalIdentifier

          public java.lang.String getLocalIdentifier(java.lang.Object nativeItem)

      Extract the local identifier from the native item
      Overrides:
        `getLocalIdentifier` in class `ORG.oclc.oai.server.catalog.RecordFactory`
      Parameters:
        `nativeItem` - native Item object
      Returns:
        local identifier

    - #### getDatestamp

          public java.lang.String getDatestamp(java.lang.Object nativeItem)
                                        throws java.lang.IllegalArgumentException

      get the datestamp from the item
      Specified by:
        `getDatestamp` in class `ORG.oclc.oai.server.catalog.RecordFactory`
      Parameters:
        `nativeItem` - a native item presumably containing a datestamp somewhere
      Returns:
        a String containing the datestamp for the item
      Throws:
        `java.lang.IllegalArgumentException` - Something is wrong with the argument.

    - #### getSetSpecs

          public java.util.Iterator getSetSpecs(java.lang.Object nativeItem)
                                         throws java.lang.IllegalArgumentException

      get the setspec from the item
      Specified by:
        `getSetSpecs` in class `ORG.oclc.oai.server.catalog.RecordFactory`
      Parameters:
        `nativeItem` - a native item presumably containing a setspec somewhere
      Returns:
        a String containing the setspec for the item
      Throws:
        `java.lang.IllegalArgumentException` - Something is wrong with the argument.

    - #### getAbouts

          public java.util.Iterator getAbouts(java.lang.Object nativeItem)
                                       throws java.lang.IllegalArgumentException

      Get the about elements from the item
      Specified by:
        `getAbouts` in class `ORG.oclc.oai.server.catalog.RecordFactory`
      Parameters:
        `nativeItem` - a native item presumably containing about information somewhere
      Returns:
        a Iterator of Strings containing <about>s for the item
      Throws:
        `java.lang.IllegalArgumentException` - Something is wrong with the argument.

    - #### isDeleted

          public boolean isDeleted(java.lang.Object nativeItem)
                            throws java.lang.IllegalArgumentException

      Is the record deleted?
      Specified by:
        `isDeleted` in class `ORG.oclc.oai.server.catalog.RecordFactory`
      Parameters:
        `nativeItem` - a native item presumably containing a possible delete indicator
      Returns:
        true if record is deleted, false if not
      Throws:
        `java.lang.IllegalArgumentException` - Something is wrong with the argument.

    - #### quickCreate

          public java.lang.String quickCreate(java.lang.Object nativeItem,
                                              java.lang.String schemaLocation,
                                              java.lang.String metadataPrefix)

      Allows classes that implement RecordFactory to override the default create() method. This is useful, for example, if the entire <record> is already packaged as the native record. Return null if you want the default handler to create it by calling the methods above individually.
      Specified by:
        `quickCreate` in class `ORG.oclc.oai.server.catalog.RecordFactory`
      Parameters:
        `nativeItem` - the native record
        `schemaURL` - the schemaURL desired for the response
        `the` - metadataPrefix from the request
      Returns:
        a String containing the OAI <record> or null if the default method should be used.

    - #### createHeader

          public java.lang.String[] createHeader(java.lang.Object nativeItem)
                                          throws java.lang.IllegalArgumentException

      Convert a native "item" to a "record" String. Use this version of createHeader if the setSpecs are derived from the nativeItem itself.
      Overrides:
        `createHeader` in class `ORG.oclc.oai.server.catalog.RecordFactory`
      Parameters:
        `nativeItem` - the native record.
      Returns:
        String[0] = "header" XML string String[1] = oai-identifier.
      Throws:
        `java.lang.IllegalArgumentException` - One of the header components for this record is bad.

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