Hi Frank, this is really weird. Your server is missing the exploratory URL for the reference node. The (Spring)RestGraphDatabaseService uses this URL to get the URL for the ReferenceNode.
I don't know why your sever is missing that. I just downloaded 1.5 community for unix and started the server, it reports the reference_node url as expected: ynagzet:neo4j-community-1.5 mh$ curl http://localhost:7474/db/data/ { "relationship_index" : "http://localhost:7474/db/data/index/relationship";, "node" : "http://localhost:7474/db/data/node";, "relationship_types" : "http://localhost:7474/db/data/relationship/types";, "neo4j_version" : "1.5", "batch" : "http://localhost:7474/db/data/batch";, "extensions_info" : "http://localhost:7474/db/data/ext";, "node_index" : "http://localhost:7474/db/data/index/node";, "reference_node" : "http://localhost:7474/db/data/node/0";, "extensions" : { "CypherPlugin" : { "execute_query" : "http://localhost:7474/db/data/ext/CypherPlugin/graphdb/execute_query"; }, "GremlinPlugin" : { "execute_script" : "http://localhost:7474/db/data/ext/GremlinPlugin/graphdb/execute_script"; } } } Am 01.12.2011 um 17:53 schrieb Frank: > Hi Michael, > > My curl result looks like this: > > $ curl http://localhost:7474/db/data/ -i > HTTP/1.1 200 OK > Content-Length: 680 > Content-Encoding: UTF-8 > Content-Type: application/json > Access-Control-Allow-Origin: * > Server: Jetty(6.1.25) > > { > "relationship_index" : "http://localhost:7474/db/data/index/relationship";, > "node" : "http://localhost:7474/db/data/node";, > "relationship_types" : "http://localhost:7474/db/data/relationship/types";, > "neo4j_version" : "1.5", > "batch" : "http://localhost:7474/db/data/batch";, > "extensions_info" : "http://localhost:7474/db/data/ext";, > "node_index" : "http://localhost:7474/db/data/index/node";, > "extensions" : { > "CypherPlugin" : { > "execute_query" : > "http://localhost:7474/db/data/ext/CypherPlugin/graphdb/execute_query"; > }, > "GremlinPlugin" : { > "execute_script" : > "http://localhost:7474/db/data/ext/GremlinPlugin/graphdb/execute_script"; > } > } > } > > I installed what I thought was the latest version of the server. > > My Maven dependency tree is enourmous because the rest of my application uses > a lot of things. I think this is the part you're interested in, though. > > [INFO] +- > org.springframework.data:spring-data-neo4j:jar:2.0.0.BUILD-SNAPSHOT:compile > [INFO] | +- org.springframework:spring-beans:jar:3.0.6.RELEASE:compile > [INFO] | +- org.springframework:spring-aspects:jar:3.0.6.RELEASE:compile > [INFO] | +- > org.springframework.data:spring-data-commons-core:jar:1.2.0.M2:compile > [INFO] | +- org.slf4j:jcl-over-slf4j:jar:1.6.1:compile > [INFO] | +- cglib:cglib:jar:2.2:compile > [INFO] | +- org.neo4j:neo4j:jar:1.5:compile > [INFO] | | +- org.neo4j:neo4j-kernel:jar:1.5:compile > [INFO] | | | \- > org.apache.geronimo.specs:geronimo-jta_1.1_spec:jar:1.1.1:compile > [INFO] | | +- org.neo4j:neo4j-lucene-index:jar:1.5:compile > [INFO] | | +- org.neo4j:neo4j-graph-algo:jar:1.5:compile > [INFO] | | +- org.neo4j:neo4j-udc:jar:1.5:compile > [INFO] | | +- org.neo4j:neo4j-graph-matching:jar:1.5:compile > [INFO] | | \- org.neo4j:neo4j-jmx:jar:1.5:compile > [INFO] | +- org.neo4j:neo4j-cypher-dsl:jar:1.5:compile > [INFO] | +- > org.hibernate.javax.persistence:hibernate-jpa-2.0-api:jar:1.0.0.Final:compile > [INFO] | \- javax.validation:validation-api:jar:1.0.0.GA:compile > [INFO] +- > org.springframework.data:spring-data-neo4j-rest:jar:2.0.0.BUILD-SNAPSHOT:compile > [INFO] | +- org.neo4j:neo4j-rest-graphdb:jar:1.5:compile > [INFO] | | \- org.neo4j:server-api:jar:1.5:compile > [INFO] | | +- javax.ws.rs:jsr311-api:jar:1.1.1:compile > [INFO] | | \- commons-configuration:commons-configuration:jar:1.6:compile > [INFO] | | \- > commons-beanutils:commons-beanutils-core:jar:1.8.0:compile > [INFO] | +- org.codehaus.jackson:jackson-jaxrs:jar:1.6.1:compile > [INFO] | +- com.sun.jersey:jersey-server:jar:1.4:compile > [INFO] | | \- com.sun.jersey:jersey-core:jar:1.4:compile > [INFO] | \- com.sun.jersey:jersey-client:jar:1.4:compile > > > > On Nov 30, 2011, at 8:37 PM, Michael Hunger [via Neo4j Community Discussions] > wrote: > >> Frank, >> >> sorry to hear that. >> >> I just tried it and it works as expected. >> >> final SpringRestGraphDatabase gdb = new >> SpringRestGraphDatabase("http://localhost:7474/db/data/";); >> final Node node = gdb.getReferenceNode(); >> assertEquals(0,node.getId()); >> >> What version of the Neo4j-Server are you using? Could you please also show >> the output of mvn dependency:tree ? >> >> Thanks a lot >> >> Michael >> >> if you execute it via curl, what are the results? >> >> ynagzet:spring-data-neo4j mh$ curl http://localhost:7474/db/data/ -i >> HTTP/1.1 200 OK >> Content-Length: 620 >> Content-Encoding: UTF-8 >> Content-Type: application/json >> Access-Control-Allow-Origin: * >> Server: Jetty(6.1.25) >> >> { >> "relationship_index" : "http://localhost:7474/db/data/index/relationship";, >> "node" : "http://localhost:7474/db/data/node";, >> "relationship_types" : "http://localhost:7474/db/data/relationship/types";, >> "neo4j_version" : "1.6.M01", >> "batch" : "http://localhost:7474/db/data/batch";, >> "extensions_info" : "http://localhost:7474/db/data/ext";, >> "node_index" : "http://localhost:7474/db/data/index/node";, >> "reference_node" : "http://localhost:7474/db/data/node/0";, >> "extensions" : { >> "GremlinPlugin" : { >> "execute_script" : >> "http://localhost:7474/db/data/ext/GremlinPlugin/graphdb/execute_script"; >> } >> } >> }ynagzet:spring-data-neo4j mh$ curl http://localhost:7474/db/data -i >> HTTP/1.1 302 Found >> Location: http://localhost:7474/db/data/ >> Content-Length: 0 >> Server: Jetty(6.1.25) >> >> >> Am 01.12.2011 um 00:19 schrieb Frank: >> >>> The server is running on localhost and can be hit from a browser. The >>> server's configuration was modified to allow requests from any IP address, >>> although all of my attempts are from the localhost anyway. >>> >>> I've tried this with and without a trailing slash on the URI, no >>> difference. >>> >>> Code: >>> >>> GraphDatabase graphDb = new >>> SpringRestGraphDatabase("http://localhost:7474/db/data";); >>> graphDb.getReferenceNode(); >>> >>> Result: >>> >>> java.lang.NullPointerException >>> at >>> org.neo4j.rest.graphdb.ExecutingRestRequest.uriWithoutSlash(ExecutingRestRequest.java:78) >>> >>> at >>> org.neo4j.rest.graphdb.ExecutingRestRequest.<init>(ExecutingRestRequest.java:72) >>> >>> at >>> org.neo4j.rest.graphdb.ExecutingRestRequest.with(ExecutingRestRequest.java:149) >>> >>> at org.neo4j.rest.graphdb.entity.RestEntity.<init>(RestEntity.java:52) >>> at org.neo4j.rest.graphdb.entity.RestNode.<init>(RestNode.java:47) >>> at org.neo4j.rest.graphdb.RestAPI.getReferenceNode(RestAPI.java:168) >>> at >>> org.neo4j.rest.graphdb.RestGraphDatabase.getReferenceNode(RestGraphDatabase.java:71) >>> >>> at neo4j.Populate.<init>(Populate.java:35) >>> at neo4j.Populate.main(Populate.java:18) >>> >>> >>> -- >>> View this message in context: >>> http://neo4j-community-discussions.438527.n3.nabble.com/NullPointerException-in-ExecutingRestRequest-tp3550067p3550067.html >>> Sent from the Neo4j Community Discussions mailing list archive at >>> Nabble.com. >>> _______________________________________________ >>> Neo4j mailing list >>> [hidden email] >>> https://lists.neo4j.org/mailman/listinfo/user >> >> _______________________________________________ >> Neo4j mailing list >> [hidden email] >> https://lists.neo4j.org/mailman/listinfo/user >> >> >> If you reply to this email, your message will be added to the discussion >> below: >> http://neo4j-community-discussions.438527.n3.nabble.com/NullPointerException-in-ExecutingRestRequest-tp3550067p3550419.html >> To unsubscribe from NullPointerException in ExecutingRestRequest, click here. >> NAML > > > > -- > View this message in context: > http://neo4j-community-discussions.438527.n3.nabble.com/NullPointerException-in-ExecutingRestRequest-tp3550067p3552108.html > Sent from the Neo4j Community Discussions mailing list archive at Nabble.com. > _______________________________________________ > Neo4j mailing list > User@lists.neo4j.org > https://lists.neo4j.org/mailman/listinfo/user _______________________________________________ Neo4j mailing list User@lists.neo4j.org https://lists.neo4j.org/mailman/listinfo/user
