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/**
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* '$RCSfile$'
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* Copyright: 2009 University of New Mexico and the
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* Regents of the University of California
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*
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* '$Author: costa $'
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* '$Date: 2009-07-27 17:47:44 -0400 (Mon, 27 Jul 2009) $'
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* '$Revision: 4999 $'
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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* Additional Copyright 2006 OCLC, Online Computer Library Center
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package edu.ucsb.nceas.metacat.oaipmh.harvester;
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import java.io.IOException;
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import javax.xml.parsers.ParserConfigurationException;
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import javax.xml.transform.TransformerException;
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import org.xml.sax.SAXException;
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/**
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* This class represents an GetRecord response on either the server or on the
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* client
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*
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* @author Duane Costa, University of New Mexico, LTER Network Office
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* @author Jeffrey A. Young, OCLC Online Computer Library Center
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*/
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public class GetRecord extends HarvesterVerb {
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/* Constructors */
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/**
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* Mock object constructor (for unit testing purposes)
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*/
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public GetRecord() {
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super();
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}
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/**
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* Client-side GetRecord verb constructor
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*
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* @param baseURL baseURL of the OAI-PMH provider to be queried
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* @param identifier identifier of the record that we're getting
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* @param metadataPrefix the metadata prefix, e.g. "oai_pmh"
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*
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* @exception MalformedURLException the baseURL is bad
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* @exception SAXException the xml response is bad
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* @exception IOException an I/O error occurred
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*/
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public GetRecord(String baseURL, String identifier, String metadataPrefix)
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throws IOException, ParserConfigurationException, SAXException,
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TransformerException
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{
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super(getRequestURL(baseURL, identifier, metadataPrefix));
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}
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/* Instance methods */
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/**
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* Get the oai:identifier from the oai:header
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*
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* @return the oai:identifier as a String
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* @throws TransformerException
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* @throws NoSuchFieldException
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*/
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public String getIdentifier()
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throws TransformerException, NoSuchFieldException
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{
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if (SCHEMA_LOCATION_V2_0.equals(getSchemaLocation())) {
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return getSingleString(
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"/oai20:OAI-PMH/oai20:GetRecord/oai20:record/oai20:header/oai20:identifier"
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);
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}
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else {
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throw new NoSuchFieldException(getSchemaLocation());
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}
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}
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/**
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* Construct the query portion of the http request
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*
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* @param baseURL baseURL of the OAI-PMH provider to be queried
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* @param identifier identifier of the record that we're getting
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* @param metadataPrefix the metadata prefix, e.g. "oai_pmh"
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* @return a String containing the query portion of the http request
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*/
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private static String getRequestURL(String baseURL,
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String identifier,
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String metadataPrefix) {
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StringBuffer requestURL = new StringBuffer(baseURL);
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requestURL.append("?verb=GetRecord");
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requestURL.append("&identifier=").append(identifier);
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requestURL.append("&metadataPrefix=").append(metadataPrefix);
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return requestURL.toString();
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}
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}
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