On Wed, Feb 2, 2011 at 5:31 AM, Joshi Hemant - hjoshi < [email protected]> wrote:
> Oh.. yes..it is very well documented. I just needed to read through. :) > I have got couple of questions related to plugins: > 1) Instead of plugins being accessible through POST method to the URI, can > they be declared accessible as a GET request? > Not yet. This is in the future feature pile :-) We wanted to get a simple subset out first and get initial reactions on that, like the reaction we are getting from you now. I really appreciate you doing this. You might be right on the Iterable<RelationshipType> issue. That data type is not part of the test suite. We'll fix that in a future version. Sincere thanks, Tobias > > 2) The following function did not show up at > http://localhost:7474/db/data/ though it compiles: > > @Name( "getAllRelationshipTypes" ) > @Description( "Get all relationship types of the graph" ) > @PluginTarget( GraphDatabaseService.class ) > public Iterable<RelationshipType> getAllRelationshipTypes( @Source > GraphDatabaseService graphDb) > { > Return graphDb.getRelationshipTypes(); > } > > My guess is that the current API does not support > Iterable<RelationshipType> as a json document. Instead the following works: > @Name( "getAllRelationshipTypes" ) > @Description( "Get all relationship types of the graph" ) > @PluginTarget( GraphDatabaseService.class ) > public Iterable<String> getAllRelationshipTypes( @Source > GraphDatabaseService graphDb) > { > Vector<String> v = new Vector<String>(); > for(RelationshipType rType : graphDb.getRelationshipTypes()){ > v.add(rType.name()); > } > return v; > } > which returns Iterable<String> with additional manipulations. > Is that the case or am I missing something? > -Hemant > > -----Original Message----- > From: [email protected] [mailto:[email protected]] > On Behalf Of Jim Webber > Sent: Tuesday, February 01, 2011 9:41 PM > To: Neo4j user discussions > Subject: Re: [Neo4j] neo4j plugins > > Hi, > > Looking at the docs, it already says that the conventional place for > extensions is $NEO4J_HOME/plugins. I've updated the docs to emphasise that > more clearly. > > Jim > > On 1 Feb 2011, at 19:22, Joshi Hemant - hjoshi wrote: > > > Thanks Michael. I don't think I can update documentation at > http://docs.neo4j.org/chunked/snapshot/server-plugins.html > > Is http://wiki.neo4j.org/content/Using_the_Neo4j_Server_with_Java a good > place to add section about plugins that are REST URI accessible? > > > > -Hemant > > > > > > -----Original Message----- > > From: [email protected] [mailto:[email protected]] > On Behalf Of Michael Hunger > > Sent: Tuesday, February 01, 2011 5:04 PM > > To: Neo4j user discussions > > Subject: Re: [Neo4j] Neo4j 1.2 server on Linux X86 - 64 bit > > > > Hemant, > > > > Good work, perhaps you'd like to publish it somewhere in the wiki or in a > blog post. > > Now you also know how to speed up your app, whenever the existing REST > API is too chatty for a usecase. Just write a plugin that gets the data > (nodes, relationships) that you want to get in one request (e.g. via a > traversal) > > and return them. > > > > Cheers > > > > Michael > > > > > > Am 01.02.2011 um 23:55 schrieb Joshi Hemant - hjoshi: > > > >> I solved it!! The jar file needed to be in the plugins folder. > >> -Hemant > >> > >> -----Original Message----- > >> From: [email protected] [mailto:[email protected]] > On Behalf Of Joshi Hemant - hjoshi > >> Sent: Tuesday, February 01, 2011 4:50 PM > >> To: Neo4j user discussions > >> Subject: Re: [Neo4j] Neo4j 1.2 server on Linux X86 - 64 bit > >> > >> I could create OldIndex plugin to read index created using 0.8 snapshot > of REST server and made entry for the plugin in the > org.neo4j.server.plugins.ServerPlugin as follows: > >> org.neo4j.examples.server.plugins.OldIndex > >> The code for OldIndex is very straight forward : > >> > >> @Name( "getNodes" ) > >> @Description( "Get all nodes from the lucene index" ) > >> @PluginTarget( GraphDatabaseService.class ) > >> public Iterable<Node> getAllNodes( @Source GraphDatabaseService > graphDb, > >> @Description( "The key to search old lucene index with" ) > @Parameter( name = "key" ) String key, > >> @Description( "The value to search old lucene index with" ) > @Parameter( name = "value" ) String value) > >> { > >> IndexService ind = new LuceneReadOnlyIndexService(graphDb); > >> IndexHits<Node> nodeHits = ind.getNodes(key, value); > >> return nodeHits; > >> } > >> > >> When I post to URL > http://localhost:7474/db/data/ext/OldIndex/graphdb/getNodes with key as > name and value as "JOHN DOE", I should get a single node back as it was > indexed and accessible earlier through old 0.8 REST snapshot. > >> > >> According to wrapper.log file, the request was handled and returned with > 200 HTTP code. > >> > >> INFO | jvm 1 | 2011/02/01 16:38:46 | [org.mortbay.log] : REQUEST > /db/data/ext/OldIndex/graphdb/getNodes on > org.mortbay.jetty.HttpConnection@124e935 > >> INFO | jvm 1 | 2011/02/01 16:38:46 | [org.mortbay.log] : > sessionManager=org.mortbay.jetty.servlet.HashSessionManager@14b5f4a > >> INFO | jvm 1 | 2011/02/01 16:38:46 | [org.mortbay.log] : > session=null > >> INFO | jvm 1 | 2011/02/01 16:38:46 | [org.mortbay.log] : > servlet=org.neo4j.server.web.NeoServletContainer-19297865 > >> INFO | jvm 1 | 2011/02/01 16:38:46 | [org.mortbay.log] : chain=null > >> INFO | jvm 1 | 2011/02/01 16:38:46 | [org.mortbay.log] : servlet > holder=org.neo4j.server.web.NeoServletContainer-19297865 > >> INFO | jvm 1 | 2011/02/01 16:38:46 | [org.mortbay.log] : RESPONSE > /db/data/ext/OldIndex/graphdb/getNodes 200 > >> INFO | jvm 1 | 2011/02/01 16:38:46 | [org.mortbay.log] : EOF > >> > >> But there were no results returned. > >> The question is: how does one access old lucene index created with 0.8 > snapshot in the new 1.2 server plugin framework? > >> -Hemant > >> > >> -----Original Message----- > >> From: [email protected] [mailto:[email protected]] > On Behalf Of Peter Neubauer > >> Sent: Thursday, January 27, 2011 4:43 PM > >> To: Neo4j user discussions > >> Subject: Re: [Neo4j] Neo4j 1.2 server on Linux X86 - 64 bit > >> > >> Joshi, > >> you can see the process here, > >> http://docs.neo4j.org/chunked/snapshot/server-plugins.html, and and an > >> example under neo4j-examples (part of the server distribution) under > >> /examples/java/site/server-plugins.html that links to the local > >> example code. > >> > >> Let me know if you encounter problems, and I will try to help you! > >> > >> Cheers, > >> > >> /peter neubauer > >> > >> GTalk: neubauer.peter > >> Skype peter.neubauer > >> Phone +46 704 106975 > >> LinkedIn http://www.linkedin.com/in/neubauer > >> Twitter http://twitter.com/peterneubauer > >> > >> http://www.neo4j.org - Your high performance graph > database. > >> http://www.thoughtmade.com - Scandinavia's coolest Bring-a-Thing party. > >> > >> > >> > >> On Thu, Jan 27, 2011 at 10:06 AM, Joshi Hemant - hjoshi > >> <[email protected]> wrote: > >>> I can write a java program if it is straight forward process. > Otherwise, I will have to wait. > >>> -Hemant > >>> > >>> -----Original Message----- > >>> From: [email protected] [mailto: > [email protected]] On Behalf Of Peter Neubauer > >>> Sent: Thursday, January 27, 2011 10:35 AM > >>> To: Neo4j user discussions > >>> Subject: Re: [Neo4j] Neo4j 1.2 server on Linux X86 - 64 bit > >>> > >>> Joshi, > >>> would it be possible for you to write that extension? Otherwise, I can > >>> try to power it through one of these days :/ > >>> > >>> Cheers, > >>> > >>> /peter neubauer > >>> > >>> GTalk: neubauer.peter > >>> Skype peter.neubauer > >>> Phone +46 704 106975 > >>> LinkedIn http://www.linkedin.com/in/neubauer > >>> Twitter http://twitter.com/peterneubauer > >>> > >>> http://www.neo4j.org - Your high performance graph > database. > >>> http://www.thoughtmade.com - Scandinavia's coolest Bring-a-Thing > party. > >>> > >>> > >>> > >>> On Thu, Jan 27, 2011 at 8:08 AM, Joshi Hemant - hjoshi > >>> <[email protected]> wrote: > >>>> I do not think I have an options of updating index to new provider > framework using REST or java. I think an extension would make updating to > latest release much easier for us. > >>>> -Hemant > >>>> > >>>> -----Original Message----- > >>>> From: [email protected] [mailto: > [email protected]] On Behalf Of Peter Neubauer > >>>> Sent: Wednesday, January 26, 2011 11:59 PM > >>>> To: Neo4j user discussions > >>>> Subject: Re: [Neo4j] Neo4j 1.2 server on Linux X86 - 64 bit > >>>> > >>>> Joshi, > >>>> the current REST API exposes the new Indexes that you can create on > >>>> nodes and relatoinships. The old indexes (that your DB probably is > >>>> indexed with) are not exposed via the Server REST API. > >>>> > >>>> I would suggest to reindex your data using either the current REST > >>>> API, > http://components.neo4j.org/neo4j-server/snapshot/rest.html#Add_indices_with_provided_configuration_parameters > >>>> > >>>> or in Java code http://wiki.neo4j.org/content/Index_Framework or > >>>> > >>>> Is that possible for you? Otherwise we would need to find another > >>>> solution, or write an extension that provides access to the old index > >>>> API, since this has come up repeatedly now. > >>>> > >>>> Cheers, > >>>> > >>>> /peter neubauer > >>>> > >>>> GTalk: neubauer.peter > >>>> Skype peter.neubauer > >>>> Phone +46 704 106975 > >>>> LinkedIn http://www.linkedin.com/in/neubauer > >>>> Twitter http://twitter.com/peterneubauer > >>>> > >>>> http://www.neo4j.org - Your high performance graph > database. > >>>> http://www.thoughtmade.com - Scandinavia's coolest Bring-a-Thing > party. > >>>> > >>>> > >>>> > >>>> On Wed, Jan 26, 2011 at 8:53 PM, Joshi Hemant - hjoshi > >>>> <[email protected]> wrote: > >>>>> Thanks Peter. You were right. Changing those 2 entries did solve the > problem of connecting to the webadmin UI as well as getting json document > back for simple requests such as > >>>>> > >>>>> curl -H Accept:application/json > http://gigdev8028.gig.acxiom.net:9999/db/data/node/1 > >>>>> > >>>>> Here are the 2 issues that are still puzzling to me. > >>>>> 1) Though I have put the 2 aforementioned settings in > neo4j.properties file under conf folder (attached), I was still able to > create a new node without problems and could get json document back for the > new node as well. > >>>>> > >>>>> 2) When I pointed neo4j 1.2 server to my old neo4j-rest-db directory, > I could access all nodes, relationships as well properties etc. online > through webadmin as well as json requests but I am not able to access the > lucene index I have created on this data. I have several nodes I have > indexed in the old version that I would like to access using 1.2 but when I > try to get to http://gigdev8028.gig.acxiom.net:9999/db/data/index/node > >>>>> > >>>>> So far I get no response (no error either) I have attached neo4j.log > and wrapper.log if that helps. > >>>>> Thanks for your help. > >>>>> -Hemant > >>>>> > >>>>> -----Original Message----- > >>>>> From: [email protected] [mailto:use > [email protected]] On Behalf Of Peter Neubauer > >>>>> Sent: Tuesday, January 25, 2011 9:27 PM > >>>>> To: Neo4j user discussions > >>>>> Subject: Re: [Neo4j] Neo4j 1.2 server on Linux X86 - 64 bit > >>>>> > >>>>> Joshi, > >>>>> I am a bit suspicious of your wrapper.log, > >>>>> > >>>>> STATUS | wrapper | 2011/01/24 11:34:47 | Launching a JVM... > >>>>> INFO | jvm 1 | 2011/01/24 11:34:47 | WrapperManager: > Initializing... > >>>>> INFO | jvm 1 | 2011/01/24 11:34:47 | WrapperManager: > >>>>> INFO | jvm 1 | 2011/01/24 11:34:47 | WrapperManager: WARNING - > >>>>> Unable to load the Wrapper's native library because none of the > >>>>> INFO | jvm 1 | 2011/01/24 11:34:47 | WrapperManager: > >>>>> following files: > >>>>> INFO | jvm 1 | 2011/01/24 11:34:47 | WrapperManager: > >>>>> libwrapper-linux-x86-64.so > >>>>> INFO | jvm 1 | 2011/01/24 11:34:47 | WrapperManager: > >>>>> libwrapper.so > >>>>> INFO | jvm 1 | 2011/01/24 11:34:47 | WrapperManager: > >>>>> could be located on the following java.library.path: > >>>>> INFO | jvm 1 | 2011/01/24 11:34:47 | WrapperManager: > >>>>> /home/hjoshi/neo4j-1.2/bin/lib > >>>>> INFO | jvm 1 | 2011/01/24 11:34:47 | WrapperManager: > >>>>> Please see the documentation for the wrapper.java.library.path > >>>>> INFO | jvm 1 | 2011/01/24 11:34:47 | WrapperManager: > >>>>> configuration property. > >>>>> INFO | jvm 1 | 2011/01/24 11:34:47 | WrapperManager: > >>>>> System signals will not be handled correctly. > >>>>> > >>>>> but that should not be fatal. > >>>>> > >>>>> It seems you are accessing the webadmin from outside localhost with > >>>>> the external name? In that case, you should tell the external address > >>>>> in the conf/neo4j-server.properties: > >>>>> > >>>>> # REST endpoint for the data API > >>>>> # Note the / in the end is mandatory > >>>>> org.neo4j.server.webadmin.data.uri=http://localhost:7474/db/data/ > >>>>> > >>>>> # REST endpoint of the administration API (used by Webadmin) > >>>>> org.neo4j.server.webadmin.management.uri= > http://localhost:7474/db/manage/ > >>>>> > >>>>> should be changed to > >>>>> > >>>>> # REST endpoint for the data API > >>>>> # Note the / in the end is mandatory > >>>>> org.neo4j.server.webadmin.data.uri= > http://gigdev8028.gig.acxiom.net:7474/db/data/ > >>>>> > >>>>> # REST endpoint of the administration API (used by Webadmin) > >>>>> org.neo4j.server.webadmin.management.uri= > http://gigdev8028.gig.acxiom.net:7474/db/manage/ > >>>>> > >>>>> Does that change things for the webadmin? > >>>>> > >>>>> Cheers, > >>>>> > >>>>> /peter neubauer > >>>>> > >>>>> GTalk: neubauer.peter > >>>>> Skype peter.neubauer > >>>>> Phone +46 704 106975 > >>>>> LinkedIn http://www.linkedin.com/in/neubauer > >>>>> Twitter http://twitter.com/peterneubauer > >>>>> > >>>>> http://www.neo4j.org - Your high performance graph > database. > >>>>> http://www.thoughtmade.com - Scandinavia's coolest Bring-a-Thing > party. > >>>>> > >>>>> > >>>>> > >>>>> On Sat, Jan 22, 2011 at 9:08 AM, Peter Neubauer > >>>>> <[email protected]> wrote: > >>>>>> Joshi, > >>>>>> Could youy send over the contents of the log files under data/log to > >>>>>> me in order to take a look? > >>>>>> > >>>>>> /peter > >>>>>> > >>>>>> On Friday, January 21, 2011, Joshi Hemant - hjoshi > >>>>>> <[email protected]> wrote: > >>>>>>> I downloaded Neo4j 1.2 release for linux from > http://neo4j.org/get?file=neo4j-1.2-unix.tar.gz and extracted it to a > directory using tar -zxvf <file>. I installed the service using bin/neo4j > install option. Next, I followed documentation at > http://wiki.neo4j.org/content/Getting_Started_With_Neo4j_Server. After the > neo4j server is started successfully, when I try the curl command > >>>>>>> curl -H Accept:application/json http://localhost:7474/db/data/ > >>>>>>> > >>>>>>> I get the following response: > >>>>>>> <HTML> > >>>>>>> <HEAD><TITLE>Redirection</TITLE></HEAD> > >>>>>>> <BODY><H1>Redirect</H1></BODY> > >>>>>>> > >>>>>>> Also from firefox, when I try to access webadmin at > http://gigdev8028.gig.acxiom.net:7474/webadmin/ > >>>>>>> I get the following error message: > >>>>>>> Server connection lost > >>>>>>> Attempting to re-establish connection.. > >>>>>>> > >>>>>>> I have not changed any config files. uname-a command returns the > following: > >>>>>>> 2.6.18-194.el5 #1 SMP Tue Mar 16 21:52:39 EDT 2010 x86_64 x86_64 > x86_64 GNU/Linux > >>>>>>> > >>>>>>> The 2 log files neo4j.log and wrapper.log under data/log directory > do not show any error messages. > >>>>>>> > >>>>>>> Am I missing something? > >>>>>>> -Hemant > >>>>>>> > *************************************************************************** > >>>>>>> The information contained in this communication is confidential, is > >>>>>>> intended only for the use of the recipient named above, and may be > legally > >>>>>>> privileged. > >>>>>>> > >>>>>>> If the reader of this message is not the intended recipient, you > are > >>>>>>> hereby notified that any dissemination, distribution or copying of > this > >>>>>>> communication is strictly prohibited. > >>>>>>> > >>>>>>> If you have received this communication in error, please resend > this > >>>>>>> communication to the sender and delete the original message or any > copy > >>>>>>> of it from your computer system. > >>>>>>> > >>>>>>> Thank You. > >>>>>>> > **************************************************************************** > >>>>>>> > >>>>>>> _______________________________________________ > >>>>>>> Neo4j mailing list > >>>>>>> [email protected] > >>>>>>> https://lists.neo4j.org/mailman/listinfo/user > >>>>>>> > >>>>>> > >>>>> _______________________________________________ > >>>>> Neo4j mailing list > >>>>> [email protected] > >>>>> https://lists.neo4j.org/mailman/listinfo/user > >>>>> _______________________________________________ > >>>>> Neo4j mailing list > >>>>> [email protected] > >>>>> https://lists.neo4j.org/mailman/listinfo/user > >>>>> > >>>> _______________________________________________ > >>>> Neo4j mailing list > >>>> [email protected] > >>>> https://lists.neo4j.org/mailman/listinfo/user > >>>> _______________________________________________ > >>>> Neo4j mailing list > >>>> [email protected] > >>>> https://lists.neo4j.org/mailman/listinfo/user > >>>> > >>> _______________________________________________ > >>> Neo4j mailing list > >>> [email protected] > >>> https://lists.neo4j.org/mailman/listinfo/user > >>> _______________________________________________ > >>> Neo4j mailing list > >>> [email protected] > >>> https://lists.neo4j.org/mailman/listinfo/user > >>> > >> _______________________________________________ > >> Neo4j mailing list > >> [email protected] > >> https://lists.neo4j.org/mailman/listinfo/user > >> _______________________________________________ > >> Neo4j mailing list > >> [email protected] > >> https://lists.neo4j.org/mailman/listinfo/user > >> _______________________________________________ > >> Neo4j mailing list > >> [email protected] > >> https://lists.neo4j.org/mailman/listinfo/user > > > > _______________________________________________ > > Neo4j mailing list > > [email protected] > > https://lists.neo4j.org/mailman/listinfo/user > > _______________________________________________ > > Neo4j mailing list > > [email protected] > > https://lists.neo4j.org/mailman/listinfo/user > > _______________________________________________ > Neo4j mailing list > [email protected] > https://lists.neo4j.org/mailman/listinfo/user > _______________________________________________ > Neo4j mailing list > [email protected] > https://lists.neo4j.org/mailman/listinfo/user > -- Tobias Ivarsson <[email protected]> Hacker, Neo Technology www.neotechnology.com Cellphone: +46 706 534857 _______________________________________________ Neo4j mailing list [email protected] https://lists.neo4j.org/mailman/listinfo/user
