Mercurial > dive4elements > river
changeset 1408:5b5a20e4c4e5
Added a service that loads the Capabilities of a specified WMS - display those information in the ExternalWMSWindow.
flys-client/trunk@3295 c6561f87-3c4e-4783-a992-168aeb5c3f6f
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--- a/flys-client/ChangeLog Mon Nov 21 09:29:57 2011 +0000 +++ b/flys-client/ChangeLog Mon Nov 21 12:00:48 2011 +0000 @@ -1,3 +1,32 @@ +2011-11-21 Ingo Weinzierl <ingo@intevation.de> + + * src/main/java/de/intevation/flys/client/shared/model/Capabilities.java: + New. This class is used to store information of a document returned by a + WMS GetCapabilities request. + + * src/main/java/de/intevation/flys/client/server/GCServiceImpl.java, + src/main/java/de/intevation/flys/client/client/services/GCServiceAsync.java, + src/main/java/de/intevation/flys/client/client/services/GCService.java: + A new service that fetches a GetCapabilities document of a given server. + It returns a Capabilities object that stores the information of the + response. + + * src/main/java/de/intevation/flys/client/client/ui/map/CapabilitiesPanel.java: + New. This VLayout is used to display FLYS relevant information of a + Capabilities object. TODO: I18N. + + * src/main/java/de/intevation/flys/client/client/ui/map/ExternalWMSWindow.java: + Make use of GCService to query the Capabilities of the user specified + WMS. + + * src/main/java/de/intevation/flys/client/client/FLYSConstants_en.properties, + src/main/java/de/intevation/flys/client/client/FLYSConstants.properties, + src/main/java/de/intevation/flys/client/client/FLYSConstants_de.properties, + src/main/java/de/intevation/flys/client/client/FLYSConstants.java: Added + error strings used in the GCServiceImpl. + + * src/main/webapp/WEB-INF/web.xml: Registered the GCService. + 2011-11-21 Ingo Weinzierl <ingo@intevation.de> * src/main/webapp/images/addWMS.png: Replaced by the same icon but with
--- a/flys-client/src/main/java/de/intevation/flys/client/client/FLYSConstants.java Mon Nov 21 09:29:57 2011 +0000 +++ b/flys-client/src/main/java/de/intevation/flys/client/client/FLYSConstants.java Mon Nov 21 12:00:48 2011 +0000 @@ -422,6 +422,12 @@ String error_gfi_parsing_failed(); + String error_gc_req_failed(); + + String error_gc_doc_not_valid(); + + String error_malformed_url(); + String bottom_edge();
--- a/flys-client/src/main/java/de/intevation/flys/client/client/FLYSConstants.properties Mon Nov 21 09:29:57 2011 +0000 +++ b/flys-client/src/main/java/de/intevation/flys/client/client/FLYSConstants.properties Mon Nov 21 12:00:48 2011 +0000 @@ -220,6 +220,9 @@ error_no_valid_gfi_url = No valid GetFeatureInfo response found. error_gfi_req_failed = GetFeatureInfo request failed. error_gfi_parsing_failed = Failed to read GetFeatureInfo response. +error_gc_req_failed = Error while loading Capabilities document. +error_gc_doc_not_valid = Capabilities document is not valid. +error_malformed_url = The URL you have entered is not valid. ## map related strings digitize = images/digitize.png
--- a/flys-client/src/main/java/de/intevation/flys/client/client/FLYSConstants_de.properties Mon Nov 21 09:29:57 2011 +0000 +++ b/flys-client/src/main/java/de/intevation/flys/client/client/FLYSConstants_de.properties Mon Nov 21 12:00:48 2011 +0000 @@ -220,6 +220,9 @@ error_no_valid_gfi_url = Ung\u00fcltige GetFeatureInfo URL. error_gfi_req_failed = Die GetFeatureInfo Anfrage ist fehlgeschlagen. error_gfi_parsing_failed = Fehler beim Lesen der GetFeatureInfo Antwort. +error_gc_req_failed = Fehler beim Laden des Capabilities Dokuments. +error_gc_doc_not_valid = Das Capabilities Dokument ist nicht valide. +error_malformed_url = Die eingegebene URL ist ung\u00fcltig. ## map related strings digitize = images/digitize.png
--- a/flys-client/src/main/java/de/intevation/flys/client/client/FLYSConstants_en.properties Mon Nov 21 09:29:57 2011 +0000 +++ b/flys-client/src/main/java/de/intevation/flys/client/client/FLYSConstants_en.properties Mon Nov 21 12:00:48 2011 +0000 @@ -220,6 +220,9 @@ error_no_valid_gfi_url = No valid GetFeatureInfo response found. error_gfi_req_failed = GetFeatureInfo request failed. error_gfi_parsing_failed = Failed to read GetFeatureInfo response. +error_gc_req_failed = Error while loading Capabilities document. +error_gc_doc_not_valid = Capabilities document is not valid. +error_malformed_url = The URL you have entered is not valid. ## map related strings digitize = images/digitize.png
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/flys-client/src/main/java/de/intevation/flys/client/client/services/GCService.java Mon Nov 21 12:00:48 2011 +0000 @@ -0,0 +1,16 @@ +package de.intevation.flys.client.client.services; + +import com.google.gwt.user.client.rpc.RemoteService; +import com.google.gwt.user.client.rpc.RemoteServiceRelativePath; + +import de.intevation.flys.client.shared.exceptions.ServerException; +import de.intevation.flys.client.shared.model.Capabilities; + + +@RemoteServiceRelativePath("getcapabilities") +public interface GCService extends RemoteService { + + public Capabilities query(String path) + throws ServerException; +} +// vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/flys-client/src/main/java/de/intevation/flys/client/client/services/GCServiceAsync.java Mon Nov 21 12:00:48 2011 +0000 @@ -0,0 +1,15 @@ +package de.intevation.flys.client.client.services; + +import com.google.gwt.user.client.rpc.AsyncCallback; + +import de.intevation.flys.client.shared.model.Capabilities; + + +/** + * @author <a href="mailto:ingo.weinzierl@intevation.de">Ingo Weinzierl</a> + */ +public interface GCServiceAsync { + + void query(String path, AsyncCallback<Capabilities> callback); +} +// vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/flys-client/src/main/java/de/intevation/flys/client/client/ui/map/CapabilitiesPanel.java Mon Nov 21 12:00:48 2011 +0000 @@ -0,0 +1,86 @@ +package de.intevation.flys.client.client.ui.map; + +import com.google.gwt.user.client.ui.Grid; + +import com.smartgwt.client.widgets.Label; +import com.smartgwt.client.widgets.layout.HLayout; +import com.smartgwt.client.widgets.layout.Layout; +import com.smartgwt.client.widgets.layout.VLayout; + +import de.intevation.flys.client.shared.model.Capabilities; + + +public class CapabilitiesPanel extends VLayout { + + protected Capabilities capabilites; + + + public CapabilitiesPanel(Capabilities capabilites) { + super(); + this.capabilites = capabilites; + + initLayout(); + } + + + protected void initLayout() { + setMargin(10); + initContent(); + } + + + protected void initContent() { + Grid grid = new Grid(5, 2); + grid.setCellPadding(10); + + grid.setText(0, 0, "Titel:"); + grid.setText(0, 1, "TODO:"); + grid.setText(1, 0, "URL:"); + grid.setText(1, 1, "TODO"); + grid.setText(2, 0, "Nutzungsbedingungen:"); + grid.setText(2, 1, capabilites.getAccessConstraints()); + grid.setText(3, 0, "Gebühren:"); + grid.setText(3, 1, capabilites.getFees()); + grid.setText(4, 0, "Weitere Informationen:"); + grid.setText(4, 1, "TODO"); + + Label title = new Label("Bitte beachten Sie folgende Informationen des WMS-Dienstes:"); + title.setHeight(25); + + addMember(title); + addMember(grid); + } + + + //private void initLayout() { + // Label title = new Label("Titel:"); + // Label url = new Label("URL:"); + // Label access = new Label("Nutzungsbedingungen:"); + // Label fees = new Label("Gebühren:"); + // Label contact = new Label("Weitere Informationen:"); + + // Label titleContent = new Label("TODO"); + // Label urlContent = new Label("TODO"); + // Label accessContent = new Label(capabilites.getAccessConstraints()); + // Label feesContent = new Label(capabilites.getFees()); + // Label contactContent = new Label("TODO"); + + // addMember(createRow(title, titleContent)); + // addMember(createRow(url, urlContent)); + // addMember(createRow(access, accessContent)); + // addMember(createRow(fees, feesContent)); + // addMember(createRow(contact, contactContent)); + //} + + + protected Layout createRow(Label title, Label content) { + title.setWidth(100); + + HLayout layout = new HLayout(); + layout.addMember(title); + layout.addMember(content); + + return layout; + } +} +// vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :
--- a/flys-client/src/main/java/de/intevation/flys/client/client/ui/map/ExternalWMSWindow.java Mon Nov 21 09:29:57 2011 +0000 +++ b/flys-client/src/main/java/de/intevation/flys/client/client/ui/map/ExternalWMSWindow.java Mon Nov 21 12:00:48 2011 +0000 @@ -1,5 +1,7 @@ package de.intevation.flys.client.client.ui.map; +import com.google.gwt.core.client.GWT; +import com.google.gwt.user.client.rpc.AsyncCallback; import com.google.gwt.user.client.ui.TextBox; import com.smartgwt.client.util.SC; @@ -13,13 +15,23 @@ import com.smartgwt.client.widgets.layout.Layout; import com.smartgwt.client.widgets.layout.VLayout; +import de.intevation.flys.client.shared.model.Capabilities; +import de.intevation.flys.client.client.FLYSConstants; +import de.intevation.flys.client.client.services.GCService; +import de.intevation.flys.client.client.services.GCServiceAsync; + public class ExternalWMSWindow extends Window { + protected GCServiceAsync gcService = GWT.create(GCService.class); + protected FLYSConstants MSG = GWT.create(FLYSConstants.class); + protected Layout inputPanel; protected Layout infoPanel; protected Layout layersPanel; + protected Capabilities capabilites; + protected String url; @@ -38,6 +50,25 @@ } + protected String getCapabilitiesUrl() { + String cUrl = url; + + if (url.indexOf("?") >= 0) { + cUrl += "&SERVICE=WMS&REQUEST=GetCapabilities"; + } + else { + cUrl += "?SERVICE=WMS&REQUEST=GetCapabilities"; + } + + return cUrl; + } + + + protected void setCapabilites(Capabilities capabilites) { + this.capabilites = capabilites; + } + + public void start() { show(); centerInPage(); @@ -118,7 +149,8 @@ } setUrl(url.getValue()); - goToInfoPanel(); + + doCapabilitesRequest(); } }; @@ -166,12 +198,13 @@ } }; - VLayout root = new VLayout(); + VLayout root = new VLayout(); + VLayout panel = new CapabilitiesPanel(capabilites); - root.addMember(new Label("STEP 2: " + getUrl())); + root.setLayoutMargin(10); + panel.setHeight(420); - // TODO IMPLEMENT ME - + root.addMember(panel); root.addMember(createButtonPanel(backHandler, goHandler, cancelHandler)); return root; @@ -273,5 +306,19 @@ protected void quit() { destroy(); } + + + protected void doCapabilitesRequest() { + gcService.query(getCapabilitiesUrl(),new AsyncCallback<Capabilities>() { + public void onFailure(Throwable e) { + SC.warn(MSG.getString(e.getMessage())); + } + + public void onSuccess(Capabilities capabilites) { + setCapabilites(capabilites); + goToInfoPanel(); + } + }); + } } // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/flys-client/src/main/java/de/intevation/flys/client/server/GCServiceImpl.java Mon Nov 21 12:00:48 2011 +0000 @@ -0,0 +1,108 @@ +package de.intevation.flys.client.server; + +import java.io.InputStream; +import java.io.IOException; +import java.net.MalformedURLException; +import java.net.URL; +import java.net.URLConnection; + +import javax.xml.xpath.XPathConstants; + +import com.google.gwt.user.server.rpc.RemoteServiceServlet; + +import org.w3c.dom.Document; + +import org.apache.log4j.Logger; + +import de.intevation.artifacts.common.utils.XMLUtils; + +import de.intevation.flys.client.shared.exceptions.ServerException; +import de.intevation.flys.client.shared.model.Capabilities; +import de.intevation.flys.client.client.services.GCService; + + +/** + * @author <a href="mailto:ingo.weinzierl@intevation.de">Ingo Weinzierl</a> + */ +public class GCServiceImpl +extends RemoteServiceServlet +implements GCService +{ + public static final String ERR_GC_REQUEST_FAILED = + "error_gc_req_failed"; + + public static final String ERR_GC_DOC_NOT_VALID = + "error_gc_doc_not_valid"; + + public static final String ERR_MALFORMED_URL = + "error_malformed_url"; + + public static final String XPATH_FEES = + "/WMS_Capabilities/Service/Fees/text()"; + + public static final String XPATH_ACCESS_CONSTRAINTS = + "/WMS_Capabilities/Service/AccessConstraints/text()"; + + + private Logger logger = Logger.getLogger(GCServiceImpl.class); + + + public Capabilities query(String path) + throws ServerException + { + logger.info("GCServiceImpl.query"); + + try { + URL url = new URL(path); + + logger.debug("Open connection to url: " + path); + + URLConnection conn = url.openConnection(); + conn.connect(); + + InputStream is = conn.getInputStream(); + + return parseCapabilitiesResponse(is); + } + catch (MalformedURLException mue) { + logger.warn(mue, mue); + throw new ServerException(ERR_MALFORMED_URL); + } + catch (IOException ioe) { + logger.warn(ioe, ioe); + } + + throw new ServerException(ERR_GC_REQUEST_FAILED); + } + + + protected Capabilities parseCapabilitiesResponse(InputStream is) + throws ServerException + { + logger.debug("GCServiceImpl.parseCapabilitiesResponse"); + + Document doc = XMLUtils.parseDocument(is, false); + + if (doc == null) { + throw new ServerException(ERR_GC_DOC_NOT_VALID); + } + + String fees = (String) XMLUtils.xpath( + doc, + XPATH_FEES, + XPathConstants.STRING); + + String accessConstraints = (String) XMLUtils.xpath( + doc, + XPATH_ACCESS_CONSTRAINTS, + XPathConstants.STRING); + + logger.debug("Found fees: " + fees); + logger.debug("Found access constraints: " + accessConstraints); + + // TODO PARSE LAYERS + + return new Capabilities(fees, accessConstraints, null); + } +} +// vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/flys-client/src/main/java/de/intevation/flys/client/shared/model/Capabilities.java Mon Nov 21 12:00:48 2011 +0000 @@ -0,0 +1,51 @@ +package de.intevation.flys.client.shared.model; + +import java.io.Serializable; +import java.util.ArrayList; +import java.util.List; + + +public class Capabilities implements Serializable { + + protected String fees; + protected String accessConstraints; + + protected List<String> layers; + + + public Capabilities() { + layers = new ArrayList<String>(); + } + + + /** + * @param fees + * @param accessConstraints + * @param layers + */ + public Capabilities( + String fees, + String accessConstraints, + List<String> layers + ) { + this.fees = fees; + this.accessConstraints = accessConstraints; + this.layers = layers; + } + + + public String getFees() { + return fees; + } + + + public String getAccessConstraints() { + return accessConstraints; + } + + + public List<String> getLayers() { + return layers; + } +} +// vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :
--- a/flys-client/src/main/webapp/WEB-INF/web.xml Mon Nov 21 09:29:57 2011 +0000 +++ b/flys-client/src/main/webapp/WEB-INF/web.xml Mon Nov 21 12:00:48 2011 +0000 @@ -315,6 +315,16 @@ </servlet-mapping> <servlet> + <servlet-name>getcapabilities</servlet-name> + <servlet-class>de.intevation.flys.client.server.GCServiceImpl</servlet-class> + </servlet> + + <servlet-mapping> + <servlet-name>getcapabilities</servlet-name> + <url-pattern>/flys/getcapabilities</url-pattern> + </servlet-mapping> + + <servlet> <servlet-name>DescribeArtifactService</servlet-name> <servlet-class>de.intevation.flys.client.server.DescribeArtifactServiceImpl</servlet-class> </servlet>