svn-gvsig-desktop / tags / v2_0_0_Build_2020 / libraries / libRemoteServices / src / org / gvsig / remoteclient / ogc / OGCProtocolHandler.java @ 33910
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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) 2005 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 org.gvsig.remoteclient.ogc; |
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import java.io.File; |
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import java.io.FileInputStream; |
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import java.io.FileNotFoundException; |
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import java.io.IOException; |
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import org.kxml2.io.KXmlParser; |
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import org.xmlpull.v1.XmlPullParserException; |
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import org.gvsig.compat.CompatLocator; |
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import org.gvsig.compat.net.Downloader; |
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import org.gvsig.remoteclient.utils.CapabilitiesTags; |
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public abstract class OGCProtocolHandler { |
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protected static final Downloader downloader = CompatLocator.getDownloader(); |
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/**
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* procotol handler name
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*/
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protected String name; |
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/**
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* protocol handler version
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*/
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protected String version; |
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/**
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* host of the WMS to connect
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*/
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protected String host; |
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/**
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* port number of the comunication channel of the WMS to connect
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*/
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protected String port; |
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/**
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* @return Returns the host.
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*/
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public String getHost() { |
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return host;
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} |
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/**
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* @param host The host to set.
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*/
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public void setHost(String host) { |
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this.host = host;
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} |
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/**
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* @return Returns the name.
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*/
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public String getName() { |
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return name;
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} |
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/**
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* @param name The name to set.
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*/
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public void setName(String name) { |
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this.name = name;
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} |
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/**
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* @return Returns the port.
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*/
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public String getPort() { |
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return port;
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} |
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/**
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* @param port The port to set.
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*/
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public void setPort(String port) { |
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this.port = port;
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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 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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* parses the data retrieved by the Capabilities XML document
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*/
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public abstract boolean parseCapabilities(File f); |
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public abstract OGCServiceInformation getServiceInformation(); |
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/**
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* Just for not repeat code. Gets the correct separator according
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* to the server URL
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* @param h
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* @return
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*/
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protected static String getSymbol(String h) { |
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String symbol;
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if (h.indexOf("?")==-1) |
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symbol = "?";
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else if (h.indexOf("?")!=h.length()-1) |
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symbol = "&";
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else
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symbol = "";
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return symbol;
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} |
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/**
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* Parse an operation into a DcpType tag
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* @param parser
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* The KXMLParser
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* @param operation
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* The WFS operation to parse
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* @throws IOException
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* @throws XmlPullParserException
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*/
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protected void parserDcpType(KXmlParser parser, String operation) throws XmlPullParserException, IOException { |
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int currentTag;
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boolean end = false; |
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currentTag = parser.next(); |
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while (!end)
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{ |
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switch(currentTag)
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{ |
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case KXmlParser.START_TAG:
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if(parser.getName().compareTo(CapabilitiesTags.HTTP)==0){ |
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parseHTTPTag(parser, operation); |
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} |
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break;
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case KXmlParser.END_TAG:
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if (parser.getName().compareTo(CapabilitiesTags.DCPTYPE) == 0) |
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end = true;
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break;
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case KXmlParser.TEXT:
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break;
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} |
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if (!end){
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currentTag = parser.next(); |
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} |
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} |
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} |
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/**
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* Parse an operation into a HTTP tag
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* @param parser
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* The KXMLParser
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* @param operation
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* The WFS operation to parse
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* @throws IOException
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* @throws XmlPullParserException
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*/
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protected void parseHTTPTag(KXmlParser parser, String operation) throws XmlPullParserException, IOException { |
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int currentTag;
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boolean end = false; |
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currentTag = parser.next(); |
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int protocol = -1; |
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while (!end)
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{ |
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switch(currentTag)
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{ |
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case KXmlParser.START_TAG:
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String value = null; |
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if(parser.getName().compareTo(CapabilitiesTags.GET)==0){ |
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protocol = OGCClientOperation.PROTOCOL_GET; |
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addOperationByAttribute(parser, operation, protocol); |
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}else if(parser.getName().compareTo(CapabilitiesTags.POST)==0){ |
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protocol = OGCClientOperation.PROTOCOL_POST; |
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addOperationByAttribute(parser, operation, protocol); |
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}else if(parser.getName().compareTo(CapabilitiesTags.ONLINERESOURCE)==0){ |
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addOperationByAttribute(parser, operation, protocol); |
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} |
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break;
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case KXmlParser.END_TAG:
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if (parser.getName().compareTo(CapabilitiesTags.HTTP) == 0) |
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end = true;
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break;
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case KXmlParser.TEXT:
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break;
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} |
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if (!end){
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currentTag = parser.next(); |
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} |
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} |
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} |
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/**
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* Add an operation and the online resource
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* @param parser
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* The parser
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* @param operation
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* The operation to add
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* @param protocol
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* The parser to add
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*/
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protected void addOperationByAttribute(KXmlParser parser, String operation, int protocol){ |
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String value = null; |
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if (protocol > -1){ |
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for (int i=0 ; i<parser.getAttributeCount() ; i++){ |
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if ((parser.getAttributeName(i).toUpperCase().compareTo(CapabilitiesTags.ONLINERESOURCE.toUpperCase()) == 0) || |
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(parser.getAttributeName(i).equals(CapabilitiesTags.XLINK_HREF))){ |
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value = parser.getAttributeValue(i); |
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} |
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} |
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if (value == null){ |
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getServiceInformation().addOperation(operation, protocol); |
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}else{
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getServiceInformation().addOperation(operation, protocol, value); |
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} |
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} |
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} |
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/**
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* Copy the file in a byte array
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* @param file
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* The file to copy
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* @return
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* An array of bytes
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* @throws IOException
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*/
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protected byte[] fileToBytes(File file) throws IOException{ |
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FileInputStream fis = null; |
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byte[] bytes = null; |
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try{
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fis = new FileInputStream(file); |
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long length = file.length();
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bytes = new byte[(int)file.length()]; |
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int offset = 0; |
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int numRead = 0; |
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while (offset < bytes.length && (numRead=fis.read(bytes, offset, bytes.length-offset)) >= 0) |
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{ |
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offset += numRead; |
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} |
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}catch (IOException e) { |
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throw e;
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}finally{
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if (fis != null){ |
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fis.close(); |
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} |
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} |
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return bytes;
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} |
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} |