svn-gvsig-desktop / branches / v2_0_0_prep / libraries / org.gvsig.arcims / src / org / gvsig / remoteclient / arcims / ArcXMLFeatures.java @ 32538
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/* gvSIG. Geographic Information System of the Valencian Government
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*
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* Copyright (C) 2007-2008 Infrastructures and Transports Department
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* of the Valencian Government (CIT)
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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., 51 Franklin Street, Fifth Floor, Boston,
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* MA 02110-1301, USA.
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*
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*/
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/*
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* AUTHORS (In addition to CIT):
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* 2010 Prodevelop S.L. main development
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* http://www.prodevelop.es
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*/
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package org.gvsig.remoteclient.arcims; |
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import org.slf4j.Logger; |
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import org.slf4j.LoggerFactory; |
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import org.gvsig.remoteclient.arcims.utils.GetFeaturesTags; |
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import org.gvsig.remoteclient.arcims.utils.ServiceInfoTags; |
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import org.gvsig.remoteclient.arcims.utils.ServiceInformation; |
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import java.awt.geom.Rectangle2D; |
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/**
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* @author jsanz
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*
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*/
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public class ArcXMLFeatures extends ArcXML { |
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private static Logger logger = LoggerFactory.getLogger(ArcXMLFeatures.class.getName()); |
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/**
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* Creates a complete request in ArcXML for a FeatureService
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* from an ArcImsStatus; including extent, SRS and so on
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* @see org.gvsig.remoteclient.arcims.ArcImsStatus#ArcImsStatus()
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* @param status
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* @return
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*/
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public static String getFeatureLayerRequest(ArcImsVectStatus status) { |
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return getFeatureLayerRequest(status, 0); |
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} |
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/**
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* Creates a complete request in ArcXML for a FeatureService
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* from an ArcImsStatus; including extent, SRS and so on
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* @see org.gvsig.remoteclient.arcims.ArcImsStatus#ArcImsStatus()
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* @param status
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* @param featCount
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* @return string
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*/
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public static String getFeatureLayerRequest(ArcImsVectStatus status, |
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int featCount) {
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/**
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* The layer to retrieve
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*/
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String layerid = (String) status.getLayersIdsSelected().get(0); |
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/**
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* Gets the Decimal Separator from the status.ServiceInfo
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*/
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ServiceInformation si = status.getServiceInfo(); |
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char ds = si.getSeparators().getDs();
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/**
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* The EPSG code that image requested will have,
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* the ArcIMS server will reproject data into this
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* code, see <a href="http://www.epsg.org">EPSG</a>
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*/
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String srsView = new String(); |
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/**
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* Is the ServiceInfo FeatureCoordsys assumed?
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*/
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boolean srsAssumed = si.isSrsAssumed();
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/**
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* We suppose that status.getSrs() always will give a
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* string started by this string
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*/
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String ini_srs = ServiceInfoTags.vINI_SRS;
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/**
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* Get the minimum distance between points as the mean distance per pixel
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*/
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Rectangle2D geoExtent = status.getEnvelopeRect();
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double iX = geoExtent.getWidth() / status.getWidth();
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double iY = geoExtent.getHeight() / status.getHeight();
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double accuracy = 1.0 * ((iX + iY) / 2.0); |
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/**
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* Assign the srs from the status
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* @see org.gvsig.remoteClient.RemoteClientStatus#getSrs()
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*/
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if (!srsAssumed && status.getSrs().startsWith(ini_srs)) {
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srsView = status.getSrs().substring(ini_srs.length()).trim(); |
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} else {
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srsView = "";
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} |
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/**
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* Where clause to pass to the server
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*/
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String where = status.getWhere();
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/**
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* Finally, we can retrieve the correct ArcXML
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*/
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return getFeaturesRequest(layerid, //layer to retrieve |
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featCount, //beginrecord
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status.getSubfields(), //subfields
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where, //where
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ArcXML.getFilterCoordsys(srsView), //SRS of the service
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ArcXML.getFeatureCoordsys(srsView), //SRS of the view
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ArcXML.getEnvelope(geoExtent, ds), //envelope
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ArcXML.parseNumber(accuracy * GetFeaturesTags.ACCURACY_RATIO, ds), //accuracy multiplied by an arbitrary ratio
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false, //globalenvelope |
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false, //skipfeatures |
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true //geometries |
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); |
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} |
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/**
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* Method that builds a proper ArcXML based on basic parameters as fields to retrieve,
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* where condition, etc.
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* @param layerId
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* @param subfields
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* @param where
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* @param filterCoordsys
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* @param featureCoordsys
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* @param envelope
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* @param globalEnvelope
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* @param skipfeatures
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* @param geometry
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* @return ArcXML request
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*/
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private static String getFeaturesRequest(String layerId, int featCount, |
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String[] subfields, String where, String filterCoordsys, |
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String featureCoordsys, String envelope, String accuracy, |
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boolean globalEnvelope, boolean skipfeatures, boolean geometry) { |
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String request = new String(); |
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/**
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* Build the SUBFIELDS list
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*/
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String strSubf = new String(); |
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if (subfields == null) { |
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subfields = new String[1]; |
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subfields[0] = "#ALL#"; |
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} else {
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for (int i = 0; i < subfields.length; i++) { |
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strSubf += (subfields[i] + " ");
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} |
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strSubf = strSubf.substring(0, strSubf.length() - 1); |
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} |
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/*
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* With newxml we get FIELDS tag with inner FIELD tag for every field of the attribute table,
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* this way, we get attribute="#SHAPE#" instead of getting #SHAPE# as a name for an attribute
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*/
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/*
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request = "<?xml version = '1.0' encoding = 'UTF-8'?>\r\n"
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+ ArcXML.startRequest("1.1")
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+ "\t\t<GET_FEATURES envelope=\"true\" checkesc=\"true\" outputmode=\"newxml\" compact=\"true\"";
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*/
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request = ArcXML.startRequest("1.1") +
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"\t\t<GET_FEATURES envelope=\"true\" checkesc=\"true\" outputmode=\"newxml\" compact=\"true\"";
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if (featCount > 0) { |
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request += (" beginrecord=\"" + featCount + "\""); |
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} |
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if (globalEnvelope) {
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request += " globalenvelope=\"true\"";
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} else {
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request += " globalenvelope=\"false\"";
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} |
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if (skipfeatures) {
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request += " skipfeatures=\"true\"";
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} else {
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request += " skipfeatures=\"false\"";
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} |
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if (geometry) {
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request += " geometry=\"true\"";
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} else {
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request += " geometry=\"false\"";
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} |
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request += (">\r\n" + "\t\t\t<LAYER id=\"" + layerId + "\" />\r\n"); |
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//Start SPATIALQUERY
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request += "\t\t\t\t<SPATIALQUERY searchorder =\"attributefirst\" ";
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//Put accuracy
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if (!accuracy.equals("")) { |
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request += ("accuracy=\"" + accuracy + "\" "); |
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} |
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//Put subfields
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if (!subfields.equals("")) { |
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request += ("subfields=\"" + strSubf + "\" "); |
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} |
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//Put where
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if (!where.equals("")) { |
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request += ("where=\"" + where + "\" "); |
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} |
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//Close SPATIALQUERY
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request += ">\r\n";
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//Put featureCoordsys
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if (!featureCoordsys.equals("")) { |
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request += ("\t\t\t\t" + featureCoordsys + "\r\n"); |
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} |
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//Put filterCoordsys
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if (!filterCoordsys.equals("")) { |
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request += ("\t\t\t\t" + filterCoordsys + "\r\n"); |
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} |
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//If envelope exists, put SPATIALFILTER
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if (!envelope.equals("")) { |
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request += "\t\t\t\t<SPATIALFILTER relation=\"envelope_intersection\">\r\n";
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request += ("\t\t\t\t" + envelope + "\r\n"); |
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request += "\t\t\t\t</SPATIALFILTER>\r\n";
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} |
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//Close SPATIALQUERY
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request += "\t\t\t\t</SPATIALQUERY>\r\n";
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//Close GET_FEATURES
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request += "\t\t\t</GET_FEATURES>\r\n";
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//Close request and ArcXML
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request += ArcXML.endRequest(); |
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//Return request
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logger.info("\n\tSUBFIELDS=\t" + strSubf + "\n\tWHERE=\t" + where); //System.err.println(request); |
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return request;
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} |
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/**
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* @param status
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* @return
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*/
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public static String getLayerExtentRequest(ArcImsVectStatus status) { |
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/*
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<?xml version = '1.0' encoding = 'UTF-8'?>
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<ARCXML version="1.1">
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<REQUEST>
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<GET_FEATURES outputmode="newxml" globalenvelope="true" skipfeatures="true">
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<LAYER id="1" />
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<SPATIALQUERY subfields="#ALL#" >
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<FEATURECOORDSYS id="4326"/>
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</SPATIALQUERY>
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</GET_FEATURES>
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</REQUEST>
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</ARCXML>
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*/
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/**
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* The layer to retrieve
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*/
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String layerid = (String) status.getLayersIdsSelected().get(0); |
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/**
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* Gets the ServiceInfo from the status
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*/
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ServiceInformation si = status.getServiceInfo(); |
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/**
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* The EPSG code that image requested will have,
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* the ArcIMS server will reproject data into this
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* code, see <a href="http://www.epsg.org">EPSG</a>
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*/
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String srsView = new String(); |
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String srsServ = si.getFeaturecoordsys();
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/**
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* Is the ServiceInfo FeatureCoordsys assumed?
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*/
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boolean srsAssumed = si.isSrsAssumed();
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/**
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* We suppose that status.getSrs() always will give a
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* string started by this string
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*/
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String ini_srs = ServiceInfoTags.vINI_SRS;
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/**
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* Assign the srs from the status
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* @see org.gvsig.remoteClient.RemoteClientStatus#getSrs()
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*/
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if (!srsAssumed && status.getSrs().startsWith(ini_srs)) {
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srsView = status.getSrs().substring(ini_srs.length()).trim(); |
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} else {
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srsView = "";
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srsServ = "";
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} |
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/**
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* Create a void subfields array
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*/
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String[] strSubf = new String[1]; |
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strSubf[0] = ""; |
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/**
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* Finally, we can retrieve the correct ArcXML
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*/
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return getFeaturesRequest(layerid, //layer to retrieve |
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0, //beginrecord |
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strSubf, //subfields
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"", //where |
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ArcXML.getFilterCoordsys(srsServ), //SRS of the service
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ArcXML.getFeatureCoordsys(srsView), //SRS of the view
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"", //envelope |
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"", //accuracy |
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true, //globalenvelope |
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true, //skipfeatures |
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false //geometry |
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); |
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} |
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public static String getAttributesRequest(ArcImsVectStatus status, |
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int featCount) {
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/*
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<?xml version = '1.0' encoding = 'UTF-8'?>
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<ARCXML version="1.1">
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<REQUEST>
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<GET_FEATURES outputmode="newxml" geometry="false" envelope="true" globalenvelope="true">
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<LAYER id="1" />
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<SPATIALQUERY subfields="#ALL#" >
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<FILTERCOORDSYS id="4326"/>
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<FEATURECOORDSYS id="23030"/>
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<SPATIALFILTER relation="area_intersection">
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<ENVELOPE minx="-10" miny="38" maxx="2" maxy="41"/>
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</SPATIALFILTER>
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</SPATIALQUERY>
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</GET_FEATURES>
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</REQUEST>
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</ARCXML>
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*/
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/**
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* The layer to retrieve
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*/
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String layerid = (String) status.getLayersIdsSelected().get(0); |
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/**
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* Gets the Decimal Separator from the status.ServiceInfo
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*/
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ServiceInformation si = status.getServiceInfo(); |
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char ds = si.getSeparators().getDs();
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/**
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* The EPSG code that image requested will have,
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* the ArcIMS server will reproject data into this
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* code, see <a href="http://www.epsg.org">EPSG</a>
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*/
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String srsView = new String(); |
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/**
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* Is the ServiceInfo FeatureCoordsys assumed?
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*/
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boolean srsAssumed = si.isSrsAssumed();
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/**
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* We suppose that status.getSrs() always will give a
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* string started by this string
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*/
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String ini_srs = ServiceInfoTags.vINI_SRS;
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/**
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* Assign the srs from the status
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* @see org.gvsig.remoteClient.RemoteClientStatus#getSrs()
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*/
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if (!srsAssumed && status.getSrs().startsWith(ini_srs)) {
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srsView = status.getSrs().substring(ini_srs.length()).trim(); |
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} else {
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srsView = "";
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} |
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/**
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* Finally, we can retrieve the correct ArcXML
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*/
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return getFeaturesRequest(layerid, //layer to retrieve |
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featCount + 1, status.getSubfields(), //subfields |
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status.getWhere(), //where
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ArcXML.getFilterCoordsys(srsView), //SRS of the service
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ArcXML.getFeatureCoordsys(srsView), //SRS of the view
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ArcXML.getEnvelope(status.getEnvelopeRect(), ds), //envelope
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"", //accuracy |
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true, //GlobalEnvelope |
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false, //SkipFeatures |
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false //geometry |
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); |
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} |
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public static String getAttributesRequest(ArcImsVectStatus statusCloned) { |
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return getAttributesRequest(statusCloned, 0); |
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} |
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public static String getIdsRequest(ArcImsVectStatus status, int featCount, |
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String idName) {
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String[] idNameA = { idName }; |
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/**
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* Finally, we can retrieve the correct ArcXML
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*/
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return getFeaturesRequest((String) status.getLayersIdsSelected().get(0), //layer to retrieve |
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featCount, idNameA, //subfields
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status.getWhere(), //where
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"", //SRS of the service |
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"", //SRS of the view |
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"", //envelope |
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"", //accuracy |
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true, //GlobalEnvelope |
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false, //SkipFeatures |
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false //geometry |
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); |
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} |
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} |