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/**
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* '$RCSfile$'
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* Copyright: 2000 Regents of the University of California and the
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* National Center for Ecological Analysis and Synthesis
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*
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* Author: John Harris
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* '$Date: 2006-02-16 13:41:30 -0800 (Thu, 16 Feb 2006) $'
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* '$Revision: 2909 $'
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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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package edu.ucsb.nceas.metacat.spatial;
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import org.apache.log4j.Logger;
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/**
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* Class that reflects a query against Metacat to gatther spatial data -- this
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* could be a text query that returns a spatial dataset or a spatial query that
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* returns a spatially-referenced dataset.
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*/
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public class MetacatSpatialQuery {
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private static Logger log = Logger.getLogger(MetacatSpatialQuery.class.getName());
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private MetacatSpatialDocument msd;
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private SpatialQueryProcessor mqp;
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public MetacatSpatialQuery() { }
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/**
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* returns the metacat spatial document retrieved by this query
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*/
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public MetacatSpatialDocument getSpatialDocument(String docid) {
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msd = new MetacatSpatialDocument(docid);
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log.info("creating spatial reference for docid: " + docid);
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/** all database querying is carried out in the Query Processor */
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mqp = new SpatialQueryProcessor();
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// this call will return the extents (a class) of the docid
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MetacatSpatialExtents _extents = mqp.queryExtentsByDocid(docid);
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//set the elements on the spatialdocument
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msd.setDocid(docid);
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msd.setExtents(_extents);
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// destroy the processor
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mqp.close();
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return msd;
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}
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}
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