[Geotools-gt2-users] GeoTools DataStore link with GeoServer?
Hello, I have some basic questions on how to link up a new DataStore we created with GeoServer. The way I understand it, we need to create a DataStoreFactory that implements DataStoreFactorSpi and package our DataStore up in a jar with META-INF/services/org.geotools.data.DataStoreFactorySpi that contains the string our.package.name.OurDataStoreFactory Then do we add that jar to the GeoServer lib path? One note, since this is a MemoryDataStore -- we don't really have a need for the params Map that contains things like username/passwd for database or URL for a file. I don't do any params key/value checking in the Factory...it just returns OurDataStore. However, looking into GeoServer, I am struggling to understand how it is linked to a WFS FeatureRequest from above. It seems the main code that does this is in org.vfny.geoserver.responses.wfs.FeatureResponse.execute( ) I have reverse-engineered a seq. diagram of this method, but am still not clear on how GeoServer finds our DataStore. Can someone point me to the right area to look, or any pointers on getting a test of a new DataStore working with GeoTools. My basic test environment consists of setting a breakpoint in the GeoServer's org.vfny.geoserver.wfs.servlets.TestWfsPost.doPost( ) and go to the local URL: http://localhost:8080/geoserver/wfs/TestWfsPost, input some XML as a WFS request, and then walk through it in Eclipse debugger -- trying to get it linked up with OurDataStore. Please let me know if I am making any incorrect assumptions, or if there is a better way. Thanks in advance, Davis --- This SF.net email is sponsored by: Splunk Inc. Do you grep through log files for problems? Stop! Download the new AJAX search engine that makes searching your log files as easy as surfing the web. DOWNLOAD SPLUNK! http://ads.osdn.com/?ad_idv37alloc_id865op=click ___ Geotools-gt2-users mailing list Geotools-gt2-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/geotools-gt2-users
Re: [Geotools-gt2-users] GeoTools DataStore link with GeoServer?
Hi Davis, Davis Ford wrote: Hello, I have some basic questions on how to link up a new DataStore we created with GeoServer. The way I understand it, we need to create a DataStoreFactory that implements DataStoreFactorSpi and package our DataStore up in a jar with META-INF/services/org.geotools.data.DataStoreFactorySpi that contains the string our.package.name.OurDataStoreFactory Then do we add that jar to the GeoServer lib path? Currently geoserver does not support the memory datastore, but you should be able to add it to the lib path and have it show up in the geoserver datastore config. However since memory datastores are volatile your data would not live in between running instances of geoserver. One note, since this is a MemoryDataStore -- we don't really have a need for the params Map that contains things like username/passwd for database or URL for a file. I don't do any params key/value checking in the Factory...it just returns OurDataStore. However, looking into GeoServer, I am struggling to understand how it is linked to a WFS FeatureRequest from above. It seems the main code that does this is in org.vfny.geoserver.responses.wfs.FeatureResponse.execute( ) I have reverse-engineered a seq. diagram of this method, but am still not clear on how GeoServer finds our DataStore. After you add your datastore to geoserver, you need to add feature type (s). Feature types are uniquly named and you must include the name in the query you are making. Can someone point me to the right area to look, or any pointers on getting a test of a new DataStore working with GeoTools. My basic test environment consists of setting a breakpoint in the GeoServer's org.vfny.geoserver.wfs.servlets.TestWfsPost.doPost( ) and go to the local URL: http://localhost:8080/geoserver/wfs/TestWfsPost, input some XML as a WFS request, and then walk through it in Eclipse debugger -- trying to get it linked up with OurDataStore. Here are some docs on how to set up a datastores / feature types in geosever. http://docs.codehaus.org/display/GEOSDOC/Data+Configuration Please let me know if I am making any incorrect assumptions, or if there is a better way. Thanks in advance, Davis --- This SF.net email is sponsored by: Splunk Inc. Do you grep through log files for problems? Stop! Download the new AJAX search engine that makes searching your log files as easy as surfing the web. DOWNLOAD SPLUNK! http://ads.osdn.com/?ad_idv37alloc_id865op=click ___ Geotools-gt2-users mailing list Geotools-gt2-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/geotools-gt2-users -- Justin Deoliveira The Open Planning Project http://topp.openplans.org --- This SF.net email is sponsored by: Splunk Inc. Do you grep through log files for problems? Stop! Download the new AJAX search engine that makes searching your log files as easy as surfing the web. DOWNLOAD SPLUNK! http://ads.osdn.com/?ad_id=7637alloc_id=16865op=click ___ Geotools-gt2-users mailing list Geotools-gt2-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/geotools-gt2-users
Re: [Geotools-gt2-users] GeoTools DataStore link with GeoServer?
Hi Justin, I do need the DataStore to live between instances of GeoServer -- I just want to be able to connect to it from the WFS Request post test page. I want to drop in an XML query like this: wfs:GetFeature service=WFS version=1.0.0 outputFormat=GML2 xmlns:topp=http://www.openplans.org/topp; xmlns:wfs=http://www.opengis.net/wfs; xmlns:ogc=http://www.opengis.net/ogc; xmlns:gml=http://www.opengis.net/gml; xmlns:xsi=http://www.w3.org/2001/XMLSchema-instance; xmlns:myNamespace=http://myNamespace.com; xsi:schemaLocation=http://www.opengis.net/wfs http://schemas.opengis.net/wfs/1.0.0/WFS-basic.xsd; wfs:Query typeName=myNamespace:myFeatureID /wfs:Query /wfs:GetFeature and have it find my DataStore through through the plugin factory Here is what I did: 1) wrote ObjectDataStore.java that implements AbstractDataStore 2) wrote ObjectDataStoreFactory.java that extends AbstractDataStoreFactory and implements DataStoreFactorySpi 3) wrote ObjectFeatureReader that implements FeatureReader 4) wrote other code that gives the data to these things when called upon (e.g. wrote a class RoadElement that implements Feature -- this has the data and it is retrieved from some other code) 6) Packaged up as Jar with META-INF/services/org.geotools.data.DataStoreFactorySpi = my.package.hierarchy.ObjectDataStoreFactory 7) Added the Jar to GeoTools project libraries. 8) Edited ..\rel_1_3_0_rc6\server\geoserver\WEB-INF\catalog.xml (using Jetty) to add my datastore and namespace as follows: datastore namespace = myNamespace enabled = true id=RoadElement connectionParamsparameter value = myNamespace name=namespace//connectionParams/datastore namespace uri=http://myNamespace.com; prefix = myNamespace / 9) Killed GeoServer: ant-stop 10) Started GeoServer: ant-start 11) http://localhost:8080/geoserver checked Config - Data - Stores .. my DataStore does not show up -- hence my WFS sample post above surely won't work. Please excuse my ignorance -- I know I'm probably missing multiple steps here. Any hand-holding that anyone has any free time for is immensely appreciated! Regards, Davis PS: If I get better at it -- I promise to help document on the Wiki On 12/2/05, Justin Deoliveira [EMAIL PROTECTED] wrote: Hi Davis, Davis Ford wrote: Hello, I have some basic questions on how to link up a new DataStore we created with GeoServer. The way I understand it, we need to create a DataStoreFactory that implements DataStoreFactorSpi and package our DataStore up in a jar with META-INF/services/org.geotools.data.DataStoreFactorySpi that contains the string our.package.name.OurDataStoreFactory Then do we add that jar to the GeoServer lib path? Currently geoserver does not support the memory datastore, but you should be able to add it to the lib path and have it show up in the geoserver datastore config. However since memory datastores are volatile your data would not live in between running instances of geoserver. One note, since this is a MemoryDataStore -- we don't really have a need for the params Map that contains things like username/passwd for database or URL for a file. I don't do any params key/value checking in the Factory...it just returns OurDataStore. However, looking into GeoServer, I am struggling to understand how it is linked to a WFS FeatureRequest from above. It seems the main code that does this is in org.vfny.geoserver.responses.wfs.FeatureResponse.execute( ) I have reverse-engineered a seq. diagram of this method, but am still not clear on how GeoServer finds our DataStore. After you add your datastore to geoserver, you need to add feature type (s). Feature types are uniquly named and you must include the name in the query you are making. Can someone point me to the right area to look, or any pointers on getting a test of a new DataStore working with GeoTools. My basic test environment consists of setting a breakpoint in the GeoServer's org.vfny.geoserver.wfs.servlets.TestWfsPost.doPost( ) and go to the local URL: http://localhost:8080/geoserver/wfs/TestWfsPost, input some XML as a WFS request, and then walk through it in Eclipse debugger -- trying to get it linked up with OurDataStore. Here are some docs on how to set up a datastores / feature types in geosever. http://docs.codehaus.org/display/GEOSDOC/Data+Configuration Please let me know if I am making any incorrect assumptions, or if there is a better way. Thanks in advance, Davis --- This SF.net email is sponsored by: Splunk Inc. Do you grep through log files for problems? Stop! Download the new AJAX search engine that makes searching your log files as easy as surfing the web. DOWNLOAD SPLUNK! http://ads.osdn.com/?ad_idv37alloc_id865op=click ___ Geotools-gt2-users mailing list
