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
