/* The contents of this file are subject to the license and copyright terms
* detailed in the license directory at the root of the source tree (also
* available online at http://fedora-commons.org/license/).
*/
package org.fcrepo.oai.sample;
import java.util.ArrayList;
import java.util.Date;
import java.util.HashSet;
import java.util.List;
import java.util.Set;
import org.fcrepo.common.Constants;
import org.fcrepo.oai.BadResumptionTokenException;
import org.fcrepo.oai.DateGranularitySupport;
import org.fcrepo.oai.DeletedRecordSupport;
import org.fcrepo.oai.IDDoesNotExistException;
import org.fcrepo.oai.OAIProvider;
import org.fcrepo.oai.Record;
import org.fcrepo.oai.SimpleHeader;
import org.fcrepo.oai.SimpleMetadataFormat;
import org.fcrepo.oai.SimpleRecord;
import org.fcrepo.oai.SimpleSetInfo;
/**
* A sample implementation of OAIProvider for testing and demonstration
* purposes.
*
* @author Chris Wilper
*/
public class SampleOAIProvider
implements Constants, OAIProvider {
private static String s_rec1_identifier = "sample:1";
private static String s_rec1_metadata =
" <oai_dc:dc\n" + " xmlns:oai_dc=\""
+ OAI_DC.uri
+ "\"\n"
+ " xmlns:dc=\""
+ DC.uri
+ "\"\n"
+ " xmlns:xsi=\""
+ XSI.uri
+ "\"\n"
+ " xsi:schemaLocation=\""
+ OAI_DC.uri
+ "\n"
+ " "
+ OAI_DC2_0.xsdLocation
+ "\">\n"
+ " <dc:title>Using Structural Metadata to Localize Experience of \n"
+ " Digital Content</dc:title>\n"
+ " <dc:creator>Dushay, Naomi</dc:creator>\n"
+ " <dc:subject>Digital Libraries</dc:subject>\n"
+ " <dc:description>With the increasing technical sophistication of\n"
+ " both information consumers and providers, there is\n"
+ " increasing demand for more meaningful experiences of digital\n"
+ " information. We present a framework that separates digital\n"
+ " object experience, or rendering, from digital object storage\n"
+ " and manipulation, so the rendering can be tailored to\n"
+ " particular communities of users.\n"
+ " </dc:description>\n"
+ " <dc:description>Comment: 23 pages including 2 appendices,\n"
+ " 8 figures</dc:description>\n"
+ " <dc:date>2001-12-14</dc:date>\n"
+ " </oai_dc:dc>";
private static String s_rec1_about =
" <provenance\n"
+ " xmlns=\""
+ OAI_PROV.uri
+ "\"\n"
+ " xmlns:xsi=\""
+ XSI.uri
+ "\"\n"
+ " xsi:schemaLocation=\""
+ OAI_PROV.uri
+ "\n"
+ " "
+ OAI_PROV2_0.xsdLocation
+ "\">\n"
+ " <originDescription harvestDate=\"2002-01-01T11:10:01Z\" altered=\"true\">\n"
+ " <baseURL>http://some.oa.org</baseURL>\n"
+ " <identifier>oai:r2.org:klik001</identifier>\n"
+ " <datestamp>2001-01-01</datestamp>\n"
+ " <metadataNamespace>" + OAI_DC.uri
+ "</metadataNamespace>\n"
+ " </originDescription>\n"
+ " </provenance>";
private final SimpleHeader m_head1;
private final SimpleRecord m_rec1;
public SampleOAIProvider() {
HashSet<String> s = new HashSet<String>();
s.add("cs");
s.add("cornell");
m_head1 = new SimpleHeader(s_rec1_identifier, new Date(), s, true);
HashSet<String> a = new HashSet<String>();
a.add(s_rec1_about);
m_rec1 = new SimpleRecord(m_head1, s_rec1_metadata, a);
}
public String getRepositoryName() {
return "My Repository";
}
public String getBaseURL(String protocol, String port) {
return protocol + "://localhost:" + port + "/path/to/servlet";
}
public String getProtocolVersion() {
return "2.0";
}
public Date getEarliestDatestamp() {
return new Date();
}
public DeletedRecordSupport getDeletedRecordSupport() {
return DeletedRecordSupport.NO;
}
public DateGranularitySupport getDateGranularitySupport() {
return DateGranularitySupport.SECONDS;
}
public Set getAdminEmails() {
HashSet<String> s = new HashSet<String>();
s.add("nobody@nowhere.com");
return s;
}
public Set getSupportedCompressionEncodings() {
return new HashSet();
}
public Set getDescriptions() {
return new HashSet();
}
public Record getRecord(String identifier, String metadataPrefix)
throws IDDoesNotExistException {
// throws CannotDisseminateFormatException, IDDoesNotExistException;
if (identifier.equals("sample:1")) {
return m_rec1;
} else {
throw new IDDoesNotExistException("An item with that id was not found.");
}
}
public List getRecords(Date from,
Date until,
String metadataPrefix,
String set) {
// throws CannotDisseminateFormatException,
// NoRecordsMatchException, NoSetHierarchyException;
ArrayList<SimpleRecord> a = new ArrayList<SimpleRecord>();
a.add(m_rec1);
return a;
}
public List getRecords(String resumptionToken)
throws BadResumptionTokenException {
throw new BadResumptionTokenException("Sample doesn't support resumptionTokens.");
}
public List getHeaders(Date from,
Date until,
String metadataPrefix,
String set) {
ArrayList<SimpleHeader> a = new ArrayList<SimpleHeader>();
a.add(m_head1);
return a;
}
public List getHeaders(String resumptionToken)
throws BadResumptionTokenException {
throw new BadResumptionTokenException("Sample doesn't support resumptionTokens.");
}
public List getSets() {
ArrayList<SimpleSetInfo> a = new ArrayList<SimpleSetInfo>();
a.add(new SimpleSetInfo("Computer Science", "cs", new HashSet()));
a
.add(new SimpleSetInfo("Cornell University",
"cornell",
new HashSet()));
return a;
}
public List getSets(String resumptionToken)
throws BadResumptionTokenException {
throw new BadResumptionTokenException("Sample doesn't support resumptionTokens.");
}
public Set getMetadataFormats(String id) {
HashSet<SimpleMetadataFormat> s = new HashSet<SimpleMetadataFormat>();
s.add(new SimpleMetadataFormat(OAI_DC.prefix,
OAI_DC2_0.xsdLocation,
OAI_DC.uri));
return s;
}
public long getMaxSets() {
return 10;
}
public long getMaxRecords() {
return 10;
}
public long getMaxHeaders() {
return 10;
}
}