gvsig-catalog / org.gvsig.catalog / branches / org.gvsig.catalog-CSW2.0.2 / org.gvsig.catalog / org.gvsig.catalog.lib / src / main / java / org / gvsig / catalog / csw / parsers / CSWCapabilitiesParser.java @ 55
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package org.gvsig.catalog.csw.parsers; |
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import java.net.MalformedURLException; |
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import java.net.URL; |
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import java.util.HashMap; |
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import org.gvsig.catalog.csw.drivers.CSWCapabilities; |
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import org.gvsig.catalog.csw.drivers.CSWCatalogServiceDriver; |
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import org.gvsig.catalog.metadataxml.XMLNode; |
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import org.gvsig.catalog.metadataxml.XMLTree; |
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import org.gvsig.catalog.utils.Strings; |
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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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/* CVS MESSAGES:
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*
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* $Id: CSWCapabilitiesParserv2_0_1.java,v 1.1.2.1 2007/07/23 07:14:24 jorpiell Exp $
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* $Log: CSWCapabilitiesParserv2_0_1.java,v $
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* Revision 1.1.2.1 2007/07/23 07:14:24 jorpiell
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* Catalog refactoring
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*
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*
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*/
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/**
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* @author Jorge Piera LLodr? (jorge.piera@iver.es)
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*/
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public class CSWCapabilitiesParser{ |
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private URL url = null; |
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private CSWCatalogServiceDriver driver = null; |
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private CSWCapabilities capabilities = null; |
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public CSWCapabilitiesParser(URL url, CSWCatalogServiceDriver driver) { |
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this.url = url;
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this.driver = driver;
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} |
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/*
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* (non-Javadoc)
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* @see es.gva.cit.catalogClient.csw.parsers.CSWAbstractCapabilitiesParser#parse(es.gva.cit.catalogClient.metadataxml.XMLNode)
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*/
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public CSWCapabilities parse(XMLNode node) {
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capabilities = new CSWCapabilities(url);
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if (node.getName().endsWith(CSWConstants.SERVICE_EXPECTION_REPORT)){
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capabilities.setException(CSWExceptionParser.parse(node)); |
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capabilities.setAvailable(false);
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capabilities.setServerMessage(node.getXmlTree()); |
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} |
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parseHeaderAttributes(node); |
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parseServiceIdentification(node.searchNode(CSWConstants.SERVICE_IDENTIFICATION)); |
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parseServiceProvider(node.searchNode(CSWConstants.SERVICE_PROVIDER)); |
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parseOperationsMetadata(node.searchNode(CSWConstants.OPERATIONS_METADATA)); |
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return capabilities;
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} |
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/**
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* Parse the header attributes
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*/
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private void parseHeaderAttributes(XMLNode node){ |
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capabilities.setVersion(node.searchAtribute(CSWConstants.VERSION)); |
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} |
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/**
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* Parse the service identification tag
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* @param node
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*/
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private void parseServiceIdentification(XMLNode node){ |
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if (node != null){ |
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XMLNode title = node.searchNode(CSWConstants.TITLE); |
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XMLNode abstract_ = node.searchNode(CSWConstants.ABSTRACT); |
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String sTitle = ""; |
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if (title != null){ |
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sTitle = title.getText() + "\n";
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} |
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if (abstract_ != null){ |
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sTitle = sTitle + abstract_.getText(); |
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} |
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driver.setServerAnswerReady(sTitle); |
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capabilities.setServerMessage(sTitle); |
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XMLNode version = node.searchNode(CSWConstants.SERVICE_TYPE_VERSION); |
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if (version != null){ |
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capabilities.setVersion(version.getText()); |
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} |
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} |
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} |
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/**
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* Parse the service provider tag
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* @param node
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*/
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private void parseServiceProvider(XMLNode node){ |
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if (node != null){ |
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} |
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} |
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/**
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* Parse the operations metadata tag
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* @param node
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*/
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private void parseOperationsMetadata(XMLNode node){ |
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if (node != null){ |
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XMLNode[] operations = XMLTree.searchMultipleNode(node, CSWConstants.OPERATION);
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for (int i = 0; i < operations.length; i++) { |
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String sOperation = XMLTree.searchAtribute(operations[i], "name"); |
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if (sOperation.equals(CSWConstants.OPERATION_GETCAPABILITIES)){
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parseCapabilities(operations[i]); |
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} |
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if (sOperation.equals(CSWConstants.OPERATION_DESCRIBERECORD)){
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parseDescribeRecord(operations[i]); |
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} |
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if (sOperation.equals(CSWConstants.OPERATION_GETDOMAIN)){
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parseGetDomain(operations[i]); |
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} |
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if (sOperation.equals(CSWConstants.OPERATION_GETRECORDS)){
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parseGetRecords(operations[i]); |
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} |
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if (sOperation.equals(CSWConstants.OPERATION_GETRECORDSBYID)){
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parseGetRecordsByID(operations[i]); |
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} |
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if (sOperation.equals(CSWConstants.OPERATION_TRANSACTION)){
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parseTransaction(operations[i]); |
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} |
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if (sOperation.equals(CSWConstants.OPERATION_HARVEST)){
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parseHarvest(operations[i]); |
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} |
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} |
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//Patch for the Galdos severs
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if (capabilities.getVersion().equals(CSWConstants.VERSION_0_9_0)){
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capabilities.getOperations().getGetExtrinsicContent().put( |
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CSWConstants.GET,url); |
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} |
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} |
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} |
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/**
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* Parse the capabilitioes operation
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* @param node
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*/
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private void parseCapabilities(XMLNode node) { |
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capabilities.getOperations().setGetCapabilities(getSupportedProtocols(node)); |
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XMLNode[] parameters = XMLTree.searchMultipleNode(node, CSWConstants.PARAMETER);
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for (int i = 0; i < parameters.length; i++) { |
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String sParameter = XMLTree.searchAtribute(parameters[i], CSWConstants.PARAMETER_NAME);
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String[] values = XMLTree.searchMultipleNodeValue(parameters[i], CSWConstants.PARAMETER_VALUE); |
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if ((sParameter.toLowerCase().equals(CSWConstants.VERSION)) &&
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(values != null) &&
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values.length == 1){
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capabilities.setVersion(values[0]);
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} |
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} |
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} |
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/**
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* It parses the describe record operation
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* @param node
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* @param prefix
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*/
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private void parseDescribeRecord(XMLNode node) { |
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capabilities.getOperations().setDescribeRecords(getSupportedProtocols(node)); |
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XMLNode[] parameters = XMLTree.searchMultipleNode(node, CSWConstants.PARAMETER);
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for (int i = 0; i < parameters.length; i++) { |
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String sParameter = XMLTree.searchAtribute(parameters[i], CSWConstants.PARAMETER_NAME);
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String[] values = XMLTree.searchMultipleNodeValue(parameters[i], CSWConstants.PARAMETER_VALUE); |
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if ((sParameter.equals(CSWConstants.TYPENAME)) &&
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(values != null)){
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capabilities.setTypeNames(values); |
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} |
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} |
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} |
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/**
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* It parses the getRecordsByID operation
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* @param node
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* @param prefix
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*/
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private void parseGetRecordsByID(XMLNode node) { |
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capabilities.getOperations().setGetRecordsById(getSupportedProtocols(node)); |
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} |
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/**
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* It parses the getDomain operation
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* @param node
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* @param prefix
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*/
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private void parseGetDomain(XMLNode node) { |
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capabilities.getOperations().setGetDomain(getSupportedProtocols(node)); |
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} |
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/**
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* It parses the getRecords operation
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* @param node
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* @param prefix
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*/
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private void parseGetRecords(XMLNode node){ |
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capabilities.getOperations().setGetRecords(getSupportedProtocols(node)); |
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XMLNode[] parameters = XMLTree.searchMultipleNode(node, CSWConstants.PARAMETER);
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for (int i = 0; i < parameters.length; i++) { |
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String sParameter = XMLTree.searchAtribute(parameters[i], CSWConstants.PARAMETER_NAME);
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String[] values = XMLTree.searchMultipleNodeValue(parameters[i], CSWConstants.PARAMETER_VALUE); |
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String[] defaultValue = XMLTree.searchMultipleNodeValue(parameters[i], CSWConstants.DEFAULTVALUE); |
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if (sParameter.equals("TypeName")) { |
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capabilities.setTypeNames(Strings.join(defaultValue, values)); |
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} |
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if (sParameter.equals(CSWConstants.OUTPUTFORMAT)) {
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if (!(Strings.find(CSWConstants.TEXT_XML, defaultValue) ||
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Strings.find(CSWConstants.TEXT_XML, values))) {
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if (!(Strings.find(CSWConstants.APPLICATION_XML, defaultValue) ||
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Strings.find(CSWConstants.APPLICATION_XML, values))) {
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capabilities.setServerMessage("El servidor no devuelve " +
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"texto en formato XML");
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return;
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} |
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} |
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} |
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driver.setOutputFormat(CSWConstants.TEXT_XML); |
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if (sParameter.equals(CSWConstants.OUTPUTSCHEMA)) {
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driver.setOutputSchema(Strings.join(defaultValue, values)); |
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} |
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if (sParameter.equals(CSWConstants.RESULTTYPE)) {
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capabilities.setResultType(Strings.join(defaultValue, values)); |
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} |
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if (sParameter.equals(CSWConstants.ELEMENTSETNAME)) {
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capabilities.setElementSetName(Strings.join(defaultValue, values)); |
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} |
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if (sParameter.equals(CSWConstants.CONSTRAINTLANGUAGE)) {
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capabilities.setCONSTRAINTLANGUAGE(Strings.join(defaultValue, values)); |
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for (int j = 0; j < capabilities.getCONSTRAINTLANGUAGE().length; |
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j++) {
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if (capabilities.getCONSTRAINTLANGUAGE()[j].toUpperCase().equals("FILTER")) { |
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break;
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} else {
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capabilities.setServerMessage("errorFENotSupported");
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} |
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} |
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} |
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} |
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} |
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/**
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* * It parses the Transaction operation
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* @param node
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* @param prefix
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*/
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private void parseTransaction(XMLNode node) { |
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capabilities.getOperations().setTransaction(getSupportedProtocols(node)); |
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} |
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/**
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* It parses the Harvest operation
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* @param node
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* @param prefix
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*/
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private void parseHarvest(XMLNode node) { |
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capabilities.getOperations().setHarvest(getSupportedProtocols(node)); |
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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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* @return
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* @param node Node that contains the operation information
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*/
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private HashMap getSupportedProtocols(XMLNode node) { |
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HashMap operations = new HashMap(); |
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XMLNode protocols = XMLTree.searchNode(node, CSWConstants.DCP); |
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XMLNode HTTPoperations = XMLTree.searchNode(protocols,CSWConstants.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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String sUrl = XMLTree.searchAtribute(childNodes[i],CSWConstants.XLINK_HREF);
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URL url = null; |
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try {
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url = new URL(sUrl); |
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if ((childNodes[i].getName().endsWith(CSWConstants.GET))){
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operations.put(CSWConstants.GET, |
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url); |
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} |
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if ((childNodes[i].getName().endsWith(CSWConstants.POST))){
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operations.put(CSWConstants.POST, |
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url); |
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} |
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} catch (MalformedURLException e) { |
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//The URL can be added
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} |
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} |
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return operations;
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} |
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} |