svn-gvsig-desktop / trunk / applications / appCatalogYNomenclatorClient / src / es / gva / cit / catalogClient / csw / drivers / CSWCatalogServiceDriver.java @ 3486
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/* gvSIG. Sistema de Informaci?n Geogr?fica de la Generalitat Valenciana
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*
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* Copyright (C) 2004 IVER T.I. and Generalitat Valenciana.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (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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* For more information, contact:
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*
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* Generalitat Valenciana
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* Conselleria d'Infraestructures i Transport
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* Av. Blasco Ib??ez, 50
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* 46010 VALENCIA
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* SPAIN
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*
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* +34 963862235
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* gvsig@gva.es
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* www.gvsig.gva.es
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*
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* or
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*
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* IVER T.I. S.A
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* Salamanca 50
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* 46005 Valencia
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* Spain
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*
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* +34 963163400
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* dac@iver.es
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*/
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package es.gva.cit.catalogClient.csw.drivers; |
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import es.gva.cit.catalogClient.csw.parsers.CswCapabilitiesParser; |
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import es.gva.cit.catalogClient.csw.parsers.CswSupportedProtocolOperations; |
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import es.gva.cit.catalogClient.drivers.AbstractCatalogServiceDriver; |
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import es.gva.cit.catalogClient.metadataXML.XMLNode; |
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import es.gva.cit.catalogClient.metadataXML.XMLTree; |
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import es.gva.cit.catalogClient.metadataXML.XMLTreeNumberOfRecordsAnswer; |
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import es.gva.cit.catalogClient.profiles.Profile; |
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import es.gva.cit.catalogClient.protocols.HTTPGetProtocol; |
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import es.gva.cit.catalogClient.protocols.HTTPPostProtocol; |
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import es.gva.cit.catalogClient.protocols.SOAPProtocol; |
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import es.gva.cit.catalogClient.querys.Query; |
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import org.apache.commons.httpclient.NameValuePair; |
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import java.net.URL; |
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/**
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* This class implements the CSW protocol.
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*
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* @see http://portal.opengeospatial.org/files/?artifact_id=5929&version=1
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* @author Jorge Piera Llodra (piera_jor@gva.es)
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*/
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public class CSWCatalogServiceDriver extends AbstractCatalogServiceDriver { |
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private String responseHandler = null; |
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private String hopCount = null; |
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private String distributedSearch = null; |
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private String constraint = null; |
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private String[] CONSTRAINTLANGUAGE = null; |
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private String[] elementSetName = null; |
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private String[] typeNames = null; |
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private String[] resultType = null; |
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private String[] NAMESPACE = null; |
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private String version = "2.0.0"; |
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private CswSupportedProtocolOperations operations = null; |
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/*
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* (non-Javadoc)
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*
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* @see ICatalogServerDriver#GetCapabilities(java.lang.String,
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* java.lang.String)
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*/
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public XMLNode[] getCapabilities(URL url) { |
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XMLNode[] nodes = null; |
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CSWMessages messages = new CSWMessages(this,url); |
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CswCapabilitiesParser parser = new CswCapabilitiesParser(this,url); |
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System.out.println("**************GET*************"); |
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nodes = new HTTPGetProtocol().doQuery(url, messages.getHTTPGETCapabilities(true), 0); |
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if ((nodes != null) && (parser.getExceptionCode(nodes[0]).equals("8001")) && |
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(parser.getExceptionSubCode(nodes[0]).equals("5002"))) |
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nodes = new HTTPGetProtocol().doQuery(url, messages.getHTTPGETCapabilities(false), 0); |
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if (nodes == null) { |
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System.out.println("**************POST*************"); |
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nodes = new HTTPPostProtocol().doQuery(url,
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messages.getHTTPPOSTCapabilities(), 0);
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if (nodes == null) { |
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System.out.println("**************SOAP*************"); |
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nodes = new SOAPProtocol().doQuery(url,
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messages.getSOAPCapabilities(), 0);
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if (nodes == null) { |
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return null; |
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} else {
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setCommunicationProtocol("SOAP");
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} |
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} else {
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setCommunicationProtocol("POST");
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} |
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} else {
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setCommunicationProtocol("GET");
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} |
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return nodes;
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} |
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/**
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* this method implements the describeRecords operation
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* @param url
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* @return
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*/
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public XMLNode[] describeRecords(URL url) { |
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//return new HTTPPostProtocol().doQuery(url, getMessageDescribeRecords(),0);
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return null; |
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} |
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/*
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* (non-Javadoc)
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*
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* @see ICatalogServerDriver#GetRecords(java.lang.String, java.lang.String,
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* java.lang.String, int, int, java.lang.String, java.lang.String)
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*/
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public XMLNode[] getRecords(URL url, Query query, int firstRecord) { |
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setQuery(query); |
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CSWMessages messages = new CSWMessages(this,url); |
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XMLNode[] answerNodes = null; |
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XMLNode[] nodes = null; |
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if (getOperations().getGetRecords()==null) |
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return null; |
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if (getServerProfile().equals(Profile.ISO19115)){
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firstRecord = firstRecord - 1;
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} |
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for (int i=0 ; i<getOperations().getGetRecords().length; i++){ |
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/*
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if (getOperations().getGetRecords()[i].equals("GET")){
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System.out.println("**************GET*************");
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nodes = new HTTPGetProtocol().doQuery(url,
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messages.getHTTPGETRecords(getQuery() , firstRecord), firstRecord);
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setCommunicationProtocol("GET");
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break;
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}
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*/
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if (getOperations().getGetRecords()[i].equals("POST")){ |
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System.out.println("**************POST*************"); |
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System.out.println(messages.getHTTPPOSTRecords(getQuery(), firstRecord));
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nodes = new HTTPPostProtocol().doQuery(url,
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messages.getHTTPPOSTRecords(getQuery(), firstRecord), firstRecord); |
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setCommunicationProtocol("POST");
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break;
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} |
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/*
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if (getOperations().getGetRecords()[i].equals("SOAP")){
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System.out.println("**************SOAP*************");
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nodes = new SOAPProtocol().doQuery(url,
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messages.getSOAPRecords(getQuery(), firstRecord), firstRecord);
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setCommunicationProtocol("SOAP");
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//We must cut the SOAP Head
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nodes[0] = SOAPMessageParser.cutHead(nodes[0]);
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break;
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} */
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} |
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if (nodes == null) |
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return null; |
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int numberOfRecords = getNumberOfRecords(nodes[0]); |
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if (numberOfRecords == -1) { |
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return null; |
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} |
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answerNodes = createAnswerTree(numberOfRecords, firstRecord, nodes[0],
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url); |
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return answerNodes;
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} |
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/**
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* It returns an array of nodes with:
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* 1st position -> tree with information of the answer
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* Next positions -> One result for each position
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* @param numberOfRecords
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* Number of records returned by the query
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* @param firstRecord
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* Number of the first record
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* @param node
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* Tree returned by the server
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* @param url
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* Server URL
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* @return
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*/
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private XMLNode[] createAnswerTree(int numberOfRecords, int firstRecord, |
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XMLNode node, URL url) {
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XMLNode[] answerNodes = null; |
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if (numberOfRecords > 10) { |
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answerNodes = new XMLNode[11]; |
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} else {
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answerNodes = new XMLNode[numberOfRecords + 1]; |
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} |
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answerNodes[0] = XMLTreeNumberOfRecordsAnswer.getNode(numberOfRecords,
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firstRecord, firstRecord + numberOfRecords); |
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XMLNode[] auxNodes = cutMetadata(node);
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if (getServerProfile().equals(Profile.EBRIM)) {
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auxNodes = getEbRIMNodes(auxNodes, url); |
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} |
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for (int i = 1; |
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(i <= numberOfRecords) && (i <= 10) &&
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(i <= (numberOfRecords - firstRecord + 1)); i++)
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answerNodes[i] = auxNodes[i - 1];
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return answerNodes;
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} |
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/**
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* This function retrieve the nodes for one ebRIM answer
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* @param nodes
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* Nodes of the ebRIM answer
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* @param nodes
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* Server URL
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* @return
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* Medatada Nodes.
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*/
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private XMLNode[] getEbRIMNodes(XMLNode[] nodes, URL url) { |
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XMLNode[] auxNodes = new XMLNode[nodes.length]; |
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for (int i = 0; i < nodes.length; i++) { |
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String id = XMLTree.searchAtribute(nodes[i], "id"); |
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auxNodes[i] = new HTTPGetProtocol().doQuery(url,
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getEbRIMRequestParameters(id), 0)[0]; |
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} |
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return auxNodes;
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} |
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/**
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* It Returns the parameters needed by getExtrinsicContent
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* @param id
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* Record id
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* @return
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*/
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private NameValuePair[] getEbRIMRequestParameters(String id) { |
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NameValuePair nvp1 = new NameValuePair("request", "getExtrinsicContent"); |
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NameValuePair nvp2 = new NameValuePair("id", id); |
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return new NameValuePair[] { nvp1, nvp2 }; |
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} |
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/**
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* This function returns the number of records that have been retrieved.
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* It Reads a Node value.
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* @param node
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* The answer tree
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* @return
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* The number of records
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*/
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private int getNumberOfRecords(XMLNode node){ |
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int numberOfRecords = getNumberOfRecords(node,"csw:SearchResults","numberOfRecordsMatched"); |
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if (numberOfRecords == -1) |
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numberOfRecords = getNumberOfRecords(node,"SearchResults","numberOfRecordsMatched"); |
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return numberOfRecords;
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} |
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/**
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* This function finds and separates metadata from a full tree
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* @param node
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* full tree
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* @return
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* An array of trees that contain metadata.
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*/
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private XMLNode[] cutMetadata(XMLNode node) { |
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XMLNode[] auxNodes = XMLTree.searchMultipleNode(node,
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"csw:SearchResults->brief:MD_Metadata");
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if (auxNodes.length == 0) { |
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auxNodes = XMLTree.searchMultipleNode(node, |
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"SearchResults->ebrim:Organization");
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} |
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if (auxNodes.length == 0) { |
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auxNodes = XMLTree.searchMultipleNode(node, |
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"SearchResults->wrs:WRSExtrinsicObject");
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} |
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if (auxNodes.length == 0) { |
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auxNodes = XMLTree.searchMultipleNode(node, |
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"SearchResults->WRSExtrinsicObject");
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} |
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if (auxNodes.length == 0) { |
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auxNodes = XMLTree.searchMultipleNode(node, |
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"csw:SearchResults->dc:metadata");
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} |
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if (auxNodes.length == 0) { |
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auxNodes = XMLTree.searchMultipleNode(node, |
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"csw:SearchResults->iso19115:MD_Metadata");
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} |
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return auxNodes;
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} |
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/*
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* (non-Javadoc)
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*
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* @see catalogClient.ICatalogServerDriver#setParameters(java.util.Properties)
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*/
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public boolean setParameters(XMLNode[] nodes,URL url) { |
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return new CswCapabilitiesParser(this,url).parse(nodes[0]); |
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} |
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/**
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* @param typeNames
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* The typeNames to set.
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*/
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public void setTypeNames(String[] typeNames) { |
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this.typeNames = typeNames;
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} |
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/* (non-Javadoc)
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* @see es.gva.cit.catalogClient.drivers.ICatalogServiveDriver#isTheProtocol(java.net.URL)
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*/
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public boolean isProtocolSupported(URL url) { |
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return true; |
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} |
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/**
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* @return Returns the distributedSearch.
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*/
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public String getDistributedSearch() { |
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return distributedSearch;
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} |
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/**
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* @param distributedSearch
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* The distributedSearch to set.
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*/
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public void setDistributedSearch(String distributedSearch) { |
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this.distributedSearch = distributedSearch;
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} |
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/**
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* @return Returns the hopCount.
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*/
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public String getHopCount() { |
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return hopCount;
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} |
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/**
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* @param hopCount
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* The hopCount to set.
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*/
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public void setHopCount(String hopCount) { |
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this.hopCount = hopCount;
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} |
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/**
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* @return Returns the nAMESPACE.
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*/
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public String[] getNAMESPACE() { |
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return NAMESPACE;
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} |
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/**
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* @param namespace
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* The nAMESPACE to set.
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*/
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public void setNAMESPACE(String[] namespace) { |
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NAMESPACE = namespace; |
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} |
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/**
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* @return Returns the responseHandler.
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*/
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public String getResponseHandler() { |
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return responseHandler;
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} |
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/**
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* @param responseHandler
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* The responseHandler to set.
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*/
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public void setResponseHandler(String responseHandler) { |
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this.responseHandler = responseHandler;
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} |
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/**
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* @return Returns the resultType.
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*/
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public String[] getResultType() { |
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return resultType;
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} |
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/**
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* @param resultType
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* The resultType to set.
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*/
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public void setResultType(String[] resultType) { |
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this.resultType = resultType;
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} |
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/**
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* @return Returns the typeNames.
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*/
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public String[] getTypeNames() { |
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return typeNames;
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} |
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/**
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* @return Returns the version.
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*/
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public String getVersion() { |
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return version;
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} |
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/**
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* @param version
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* The version to set.
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*/
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public void setVersion(String version) { |
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this.version = version;
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} |
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/**
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* @return Returns the constraint.
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*/
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public String getConstraint() { |
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return constraint;
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} |
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/**
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* @param constraint
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* The constraint to set.
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*/
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public void setConstraint(String constraint) { |
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this.constraint = constraint;
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} |
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/**
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* @return Returns the cONSTRAINTLANGUAGE.
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*/
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public String[] getCONSTRAINTLANGUAGE() { |
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return CONSTRAINTLANGUAGE;
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} |
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/**
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* @param constraintlanguage
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* The cONSTRAINTLANGUAGE to set.
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*/
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public void setCONSTRAINTLANGUAGE(String[] constraintlanguage) { |
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CONSTRAINTLANGUAGE = constraintlanguage; |
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} |
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|
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/**
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* @return Returns the elementSetName.
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*/
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public String[] getElementSetName() { |
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return elementSetName;
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} |
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|
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/**
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* @param elementSetName
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* The elementSetName to set.
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*/
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public void setElementSetName(String[] elementSetName) { |
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this.elementSetName = elementSetName;
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} |
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|
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/**
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* @return Returns the operations.
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*/
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public CswSupportedProtocolOperations getOperations() {
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return operations;
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} |
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/**
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* @param operations The operations to set.
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*/
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public void setOperations(CswSupportedProtocolOperations operations) { |
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this.operations = operations;
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} |
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|
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/* (non-Javadoc)
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* @see es.gva.cit.catalogClient.drivers.ICatalogServiceDriver#getServerPofile()
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*/
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public String getQueryProfile() { |
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// TODO Auto-generated method stub
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return getServerProfile();
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} |
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} |