svn-gvsig-desktop / trunk / applications / appCatalogYNomenclatorClient / src / es / gva / cit / catalogClient / csw / parsers / CswCapabilitiesParser.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.parsers; |
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import java.net.URL; |
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import java.util.Vector; |
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import es.gva.cit.catalogClient.csw.drivers.CSWCatalogServiceDriver; |
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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.parsers.SOAPMessageParser; |
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import es.gva.cit.catalogClient.profiles.Profile; |
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import es.gva.cit.catalogClient.utils.Strings; |
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/**
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* @author Jorge Piera Llodra (piera_jor@gva.es)
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*/
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public class CswCapabilitiesParser { |
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private CSWCatalogServiceDriver driver;
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private URL url; |
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private XMLNode rootNode;
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/**
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* @param driver
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* Protocol Driver
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* @param url
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* Server Protocol
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*/
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public CswCapabilitiesParser(CSWCatalogServiceDriver driver,URL url) { |
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this.driver = driver;
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this.url = url;
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} |
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public boolean parse(XMLNode node) { |
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rootNode = node; |
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String prefix = ""; |
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XMLNode[] operations = null; |
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if (httpServerIsReady() == false){ |
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return false; |
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} |
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if (soapServerIsReady() == false){ |
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return false; |
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} |
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discoverServerProfile(node); |
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if (driver.getServerProfile().equals(Profile.EBRIM)){
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boolean b = new CswIDECCapabilitiesParser(driver).parse(); |
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if (b){
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setWelcomeMessage(node,"");
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} |
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return b;
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} |
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//Vamos a recorrer todas las operaciones. Para cada una de ellas
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//tomaremos las acciones correspondientes
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operations = XMLTree.searchMultipleNode(node, |
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"ows:OperationsMetadata->ows:Operation");
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if (!(operations.length == 0)) { |
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prefix = "ows:";
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} else {
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operations = XMLTree.searchMultipleNode(node, |
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"OperationsMetadata->Operation");
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} |
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if (operations == null) { |
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driver.setServerAnswerReady("errorNotCSWSupportedProtocol");
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return false; |
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} |
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if (this.driver.getCommunicationProtocol().equals("GET") && |
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getHTTPExceptions(node)) { |
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return false; |
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} |
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if (this.driver.getCommunicationProtocol().equals("SOAP") && |
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getSOAPExceptions(node)) { |
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return false; |
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} |
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//To save the protocols supported by each operation
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driver.setOperations(new CswSupportedProtocolOperations());
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//Operations name
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String sOperation;
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for (int i = 0; i < operations.length; i++) { |
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sOperation = XMLTree.searchAtribute(operations[i], "name");
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//////////////////Get Capabilities////////////////////
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if (sOperation.equals("GetCapabilities") || |
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sOperation.equals("CSW-Discovery.getCapabilities")) {
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parseCapabilities(operations[i], prefix); |
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} |
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////////////////////DescribeRecord//////////////////
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if (sOperation.equals("DescribeRecord")) { |
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parseDescribeRecord(operations[i], prefix); |
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} |
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////////////////////GetDomain//////////////////
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if (sOperation.equals("GetDomain")) { |
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parseGetDomain(operations[i], prefix); |
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} |
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////////////////////GetRecords//////////////////
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if (sOperation.equals("GetRecords") || |
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sOperation.equals("CSW-Discovery.getRecords")) {
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if (!(parseGetRecords(operations[i], prefix))) {
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return false; |
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} |
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} |
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////////////////////GetRecordsById//////////////////
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if (sOperation.equals("GetRecordsById") || |
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sOperation.equals("CSW-Discovery.getRecordById")) {
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parseGetRecordsByID(operations[i], prefix); |
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} |
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////////////////////Transaction//////////////////
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if (sOperation.equals("Transaction") || |
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sOperation.equals("CSW-Publication.transaction")) {
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parseTransaction(operations[i], prefix); |
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} |
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////////////////////Harvest//////////////////
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if (sOperation.equals("Harvest") || |
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sOperation.equals("CSW-Publication.harvest")) {
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parseHarvest(operations[i], prefix); |
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} |
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} |
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setWelcomeMessage(node,prefix); |
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setConstantValues(); |
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return true; |
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} |
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/**
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* This method is used to detect some common problems when the
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* used protocol has been HTTP
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* @return
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* true if all is OK
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*/
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private boolean httpServerIsReady(){ |
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if (rootNode == null){ |
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driver.setServerAnswerReady("errorNotSupportedProtocol");
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return false; |
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} |
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if (rootNode.getName().equals("SRW:explainResponse")){ |
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driver.setServerAnswerReady("errorIsASRWServer");
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return false; |
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} |
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if (rootNode.getName().equals("ows:ServiceExceptionReport")){ |
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driver.setServerAnswerReady("errorServerException");
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return false; |
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} |
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return true; |
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} |
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/**
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* This method is used to detect some common problems when the
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* used protocol has been SOAP
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* @return
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* true if all is OK
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*/
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private boolean soapServerIsReady(){ |
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if (XMLTree.searchNode(rootNode,"SOAP-ENV:Body->SOAP-ENV:Fault") != null){ |
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driver.setServerAnswerReady("errorSOAPProtocol");
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return false; |
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} |
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return true; |
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} |
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/**
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* This method is used to discover the CSW server profile. The value
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* can be ebRIM or ISO19115
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* @param node
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*/
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private void discoverServerProfile(XMLNode node){ |
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if ((url.getHost().equals("delta.icc.es")) || |
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(url.getHost().equals("indicio.demo.galdosinc.com"))){
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driver.setServerProfile(Profile.EBRIM); |
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}else{
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driver.setServerProfile(Profile.ISO19115); |
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} |
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} |
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/**
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* Sets the welcome message
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*
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*/
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private void setWelcomeMessage(XMLNode node,String prefix){ |
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//Escribimos el mensaje de BienVenida
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driver.setServerAnswerReady(XMLTree.searchNodeValue(node, |
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prefix + "ServiceIdentification->" + prefix + "Title") + "\n" + |
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XMLTree.searchNodeValue(node, |
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prefix + "ServiceIdentification->" + prefix + "Abstract")); |
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} |
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/**
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* Sets some constant values
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*
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*/
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private void setConstantValues() { |
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driver.setSortBy("true");
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driver.setStartPosition("1");
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driver.setMaxRecords("10");
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} |
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private void parseCapabilities(XMLNode node, String prefix) { |
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driver.getOperations().setGetCapabilities(setSupportedProtocols(node,prefix)); |
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} |
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private void parseDescribeRecord(XMLNode node, String prefix) { |
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driver.getOperations().setDescribeRecords(setSupportedProtocols(node,prefix)); |
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} |
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private void parseGetRecordsByID(XMLNode node, String prefix) { |
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driver.getOperations().setGetRecordsById(setSupportedProtocols(node,prefix)); |
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} |
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private void parseGetDomain(XMLNode node, String prefix) { |
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driver.getOperations().setGetDomain(setSupportedProtocols(node,prefix)); |
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} |
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private boolean parseGetRecords(XMLNode node, String prefix) { |
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driver.getOperations().setGetRecords(setSupportedProtocols(node,prefix)); |
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XMLNode[] parameters;
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//Alamacenamos los parametros y los escribimos
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parameters = XMLTree.searchMultipleNode(node, prefix + "Parameter");
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for (int j = 0; j < parameters.length; j++) { |
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String sParameter = XMLTree.searchAtribute(parameters[j], "name"); |
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String[] values = XMLTree.searchMultipleNodeValue(parameters[j], |
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prefix + "Value");
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String[] defaultValue = XMLTree.searchMultipleNodeValue(parameters[j], |
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prefix + "DefaultValue");
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if (sParameter.equals("TypeName")) { |
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driver.setTypeNames(Strings.join(defaultValue, values)); |
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} |
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if (sParameter.equals("outputFormat")) { |
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if (!(Strings.find("text/xml", defaultValue) || |
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Strings.find("text/xml", values))) {
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if (!(Strings.find("application/xml", defaultValue) || |
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Strings.find("application/xml", values))) {
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driver.setServerAnswerReady("El servidor no devuelve " +
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"texto en formato XML");
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return false; |
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} |
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} |
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} |
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driver.setOutputFormat("text/xml");
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if (sParameter.equals("outputSchema")) { |
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driver.setOutputSchema(Strings.join(defaultValue, values)); |
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driver.setServerProfile(Profile.DUBLINCORE); |
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for (int i=0 ; i<driver.getOutputSchema().length ; i++){ |
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if (driver.getOutputSchema()[i].equals(Profile.ISO19115))
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driver.setServerProfile(Profile.ISO19115); |
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break;
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} |
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} |
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if (sParameter.equals("resultType")) { |
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driver.setResultType(Strings.join(defaultValue, values)); |
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} |
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if (sParameter.equals("ElementSetName")) { |
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driver.setElementSetName(Strings.join(defaultValue, values)); |
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} |
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if (sParameter.equals("CONSTRAINTLANGUAGE")) { |
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driver.setCONSTRAINTLANGUAGE(Strings.join(defaultValue, values)); |
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for (int i = 0; i < driver.getCONSTRAINTLANGUAGE().length; |
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i++) { |
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if (driver.getCONSTRAINTLANGUAGE()[i].toUpperCase().equals("FILTER")) { |
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break;
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} else {
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driver.setServerAnswerReady("errorFENotSupported");
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} |
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} |
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} |
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} |
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return true; |
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} |
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private void parseTransaction(XMLNode node, String prefix) { |
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driver.getOperations().setTransaction(setSupportedProtocols(node,prefix)); |
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} |
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private void parseHarvest(XMLNode node, String prefix) { |
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driver.getOperations().setHarvest(setSupportedProtocols(node,prefix)); |
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} |
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/**
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* This function returns the supported protocols of an operation
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* defined by node.
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* @param node
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* Node that contains the operation information
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* @param prefix
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* getCapabilities tag prefix
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*/
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private String[] setSupportedProtocols(XMLNode node,String prefix){ |
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Vector operations = new Vector(); |
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XMLNode protocols = XMLTree.searchNode(node, prefix + "DCP");
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XMLNode HTTPoperations = XMLTree.searchNode(protocols, prefix + "HTTP");
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XMLNode[] childNodes = HTTPoperations.getSubnodes();
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for (int i=0 ; i<childNodes.length ; i++){ |
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if ((childNodes[i].getName().equals("Get")) || |
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(childNodes[i].getName().equals(prefix + "Get"))){
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operations.add(new String("GET")); |
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} |
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if ((childNodes[i].getName().equals("Post")) || |
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(childNodes[i].getName().equals(prefix + "Post"))){
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operations.add(new String("POST")); |
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} |
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} |
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String[] output = new String[operations.size()]; |
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for (int i=0 ; i<operations.size() ; i++) |
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output[i] = (String) operations.get(i);
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return output;
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} |
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/**
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* Parses the HTTP-CSW Exceptions
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* @param node
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* @return
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*/
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private boolean getHTTPExceptions(XMLNode node) { |
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if (node.getName().equals("ServiceExceptionReport")) { |
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driver.setServerAnswerReady(XMLTree.searchNodeValue(node, |
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"ServiceException"));
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return true; |
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} |
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return false; |
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} |
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/**
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* It returns the exception code
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* @param node
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* Returned node.
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* @return
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*/
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public String getExceptionCode(XMLNode node){ |
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String code = XMLTree.searchNodeAtribute(node,"ows:OWSException","code"); |
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if (code == null) |
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return "0"; |
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return code;
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} |
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/**
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* It returns the exception Subcode
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* @param node
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* Returned node.
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* @return
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*/
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public String getExceptionSubCode(XMLNode node){ |
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String code = XMLTree.searchNodeAtribute(node,"ows:OWSException","subcode"); |
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if (code == null) |
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return "0"; |
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return code;
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} |
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/**
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* Parses the SOAP-CSW Exceptions
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* @param node
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* @return
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*/
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private boolean getSOAPExceptions(XMLNode node) { |
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String msg = SOAPMessageParser.getFault(node);
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if (msg != null) { |
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driver.setServerAnswerReady(msg); |
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return true; |
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} |
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return false; |
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} |
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} |