how-to query an xml repository efficiently
Hi all, I have following use case. The customer has an xml repository which is nothing more then a directory on filesystem which contains subdirectories containing one or more xml files. They now want to query those xml files on some predefined criteria which might change over time... I'm looking for a solution which results in high performance search and some things that came to my mind was * extracting information and storing them in a database (e.g. HSQLDB) * using lucene Is there somewhere detailed documentation available on using these? And what would you recommend for my use case? I already found some stuff but no real quick-start material. http://cocoon.apache.org/2.1/userdocs/concepts/xmlsearching.html http://cocoon.apache.org/2.2/blocks/hsqldb-client/1.0/ http://cocoon.apache.org/2.2/blocks/hsqldb-server/1.0/ Thx in advance, Robby Pelssers
Re: how-to query an xml repository efficiently
Hi, For high performance search I would recommend you Apache Solr. Regards, André Le 07/09/2009 15:54, Robby Pelssers (par Internet, dépôt users-return-97968-andre.davignon=developpement-durable.gouv...@cocoon.apache.org) a écrit : Hi all, I have following use case. The customer has an xml repository which is nothing more then a directory on filesystem which contains subdirectories containing one or more xml files. They now want to query those xml files on some predefined criteria which might change over time… I’m looking for a solution which results in high performance search and some things that came to my mind was · extracting information and storing them in a database (e.g. HSQLDB) · using lucene Is there somewhere detailed documentation available on using these? And what would you recommend for my use case? I already found some stuff but no real quick-start material. http://cocoon.apache.org/2.1/userdocs/concepts/xmlsearching.html http://cocoon.apache.org/2.2/blocks/hsqldb-client/1.0/ http://cocoon.apache.org/2.2/blocks/hsqldb-server/1.0/ Thx in advance, Robby Pelssers - To unsubscribe, e-mail: users-unsubscr...@cocoon.apache.org For additional commands, e-mail: users-h...@cocoon.apache.org
Re: how-to query an xml repository efficiently
Hi Robby, I have following use case. The customer has an xml repository which is nothing more then a directory on filesystem which contains subdirectories containing one or more xml files. They now want to query those xml files on some predefined criteria which might change over time… Maybe others with more experience could comment but what about Apache Xindice [1] ?. Not sure what the status is on this project but it was designed from the ground up to be able to store, query and retrieve XML. It may be that everyone abandoned it and started using Solr instead ;-) [1] http://xml.apache.org/xindice/index.html Regards, David Legg - To unsubscribe, e-mail: users-unsubscr...@cocoon.apache.org For additional commands, e-mail: users-h...@cocoon.apache.org
xml2pgsql with cocoon?
Hello Cocooners! I have a little project going on with the following brief description. I was just wondering whether this be something that would be feasible to implement with Cocoon. I have a XML schema and a Postgresql (PostGIS) table structure which fit together, at least as much as possible. What I would like to accomplish is: 1) Upload a XML-file (Actually GML) into my server. 2) Optionally validate it against the schema. 3) Populate the Postgresql database with the data of that uploaded GML. 4) Populate PostGIS columns of the database with the geometries in that GML-file. And someday I might want to do the same other way round, that is, save a valid GML out of the Postgresql/PostGIS database. Any hints/ideas are most welcome. And maybe I am just trying to re-invent a wheel again. If you know some framework/software which already does this, please share your knowledge. With best regards, Mika Lehtonen - To unsubscribe, e-mail: users-unsubscr...@cocoon.apache.org For additional commands, e-mail: users-h...@cocoon.apache.org
Re: xml2pgsql with cocoon?
Hello Mika, In your description you mention a maintenance task: data uploading and conversion: you need to parse XML data and insert extracted entities (polygons, ids) in a database. You do not need cocoon to do that. I would use SAX and simply JDBC. How do you represent your GIS-data for the users of your site? Kind regards, Jos On Mon, 2009-09-07 at 18:58 +0300, Mika Lehtonen wrote: Hello Cocooners! I have a little project going on with the following brief description. I was just wondering whether this be something that would be feasible to implement with Cocoon. I have a XML schema and a Postgresql (PostGIS) table structure which fit together, at least as much as possible. What I would like to accomplish is: 1) Upload a XML-file (Actually GML) into my server. 2) Optionally validate it against the schema. 3) Populate the Postgresql database with the data of that uploaded GML. 4) Populate PostGIS columns of the database with the geometries in that GML-file. And someday I might want to do the same other way round, that is, save a valid GML out of the Postgresql/PostGIS database. Any hints/ideas are most welcome. And maybe I am just trying to re-invent a wheel again. If you know some framework/software which already does this, please share your knowledge. With best regards, Mika Lehtonen - To unsubscribe, e-mail: users-unsubscr...@cocoon.apache.org For additional commands, e-mail: users-h...@cocoon.apache.org - To unsubscribe, e-mail: users-unsubscr...@cocoon.apache.org For additional commands, e-mail: users-h...@cocoon.apache.org
Re: xml2pgsql with cocoon?
Hi Jos, and thanks for your reply. SAX and JDBC.. I should have mentioned, that Java is my Achilles Heel. I can't claim that I had never written a single line of Java, shame on me. And your suggestion means a lot of Java jumping, right? I do have written code with C#, Perl, PHP, JS and done quite a lot of things with XML/XSLT/XSL-FO, but still a fresh start with Java in a project like this.. I don't know.. on the other hand, it would be a chance to grab the ox from its horns and do the inevitable. I will probably represent the geometries with Geoserver and OpenLayers and probably include some attribute related functions into it. But there will be also some other applications. It's still all open. At this point, the major task is to get the data into database or actually build a block that will make uploading into database possible. - mika - Jos Snellings kirjoitti: Hello Mika, In your description you mention a maintenance task: data uploading and conversion: you need to parse XML data and insert extracted entities (polygons, ids) in a database. You do not need cocoon to do that. I would use SAX and simply JDBC. How do you represent your GIS-data for the users of your site? Kind regards, Jos On Mon, 2009-09-07 at 18:58 +0300, Mika Lehtonen wrote: Hello Cocooners! I have a little project going on with the following brief description. I was just wondering whether this be something that would be feasible to implement with Cocoon. I have a XML schema and a Postgresql (PostGIS) table structure which fit together, at least as much as possible. What I would like to accomplish is: 1) Upload a XML-file (Actually GML) into my server. 2) Optionally validate it against the schema. 3) Populate the Postgresql database with the data of that uploaded GML. 4) Populate PostGIS columns of the database with the geometries in that GML-file. And someday I might want to do the same other way round, that is, save a valid GML out of the Postgresql/PostGIS database. Any hints/ideas are most welcome. And maybe I am just trying to re-invent a wheel again. If you know some framework/software which already does this, please share your knowledge. With best regards, Mika Lehtonen - To unsubscribe, e-mail: users-unsubscr...@cocoon.apache.org For additional commands, e-mail: users-h...@cocoon.apache.org - To unsubscribe, e-mail: users-unsubscr...@cocoon.apache.org For additional commands, e-mail: users-h...@cocoon.apache.org - To unsubscribe, e-mail: users-unsubscr...@cocoon.apache.org For additional commands, e-mail: users-h...@cocoon.apache.org
