Custom representation plugin

gistfile1.java

Depend on 
-------------------
 <dependency>
      <groupId>org.neo4j.app</groupId>
      <artifactId>neo4j-server</artifactId>
      <version>1.3-SNAPSHOT</version>
    </dependency>

-----------------------
package org.neo4j.examples.server.plugins;

import org.neo4j.graphdb.GraphDatabaseService;
import org.neo4j.server.plugins.Description;
import org.neo4j.server.plugins.Name;
import org.neo4j.server.plugins.PluginTarget;
import org.neo4j.server.plugins.ServerPlugin;
import org.neo4j.server.plugins.Source;
import org.neo4j.server.rest.repr.MyRepresentation;

@Description( "dempstrates how to return custom data as a representation" )
public class CustomRepresentation extends ServerPlugin
{


    @Name( "custom_representation" )
    @Description( "Serve a custom representation of the reference node" )
    @PluginTarget( GraphDatabaseService.class )
    public MyRepresentation getAllNodes( @Source GraphDatabaseService graphDb )
    {
        return new MyRepresentation(graphDb.getReferenceNode());
    }

}

--------------------------
package org.neo4j.server.rest.repr;

import org.neo4j.graphdb.Node;

public class MyRepresentation extends ObjectRepresentation
{

    private final Node node;

    public MyRepresentation( Node node )
    {
        super( RepresentationType.NODE );
        this.node = node;
    }
    
    @Mapping("hello_world")
    public ValueRepresentation sayHello() {
        return ValueRepresentation.string( "hello world from node " + node.getId() );
    }

}
-------------------------
list it in META-INF/services/org.neo4j.server.plugins.ServerPlugin
org.neo4j.examples.server.plugins.CustomRepresentation

Deploy it according to http://docs.neo4j.org/chunked/snapshot/server-plugins.html

Result:

[~/code/neo/server/examples] $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",
  "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" : {
    "GetAll" : {
      "get_all_nodes" : "http://localhost:7474/db/data/ext/GetAll/graphdb/get_all_nodes",
      "getAllRelationships" : "http://localhost:7474/db/data/ext/GetAll/graphdb/getAllRelationships"
    },
    "CustomRepresentation" : {
      "custom_representation" : "http://localhost:7474/db/data/ext/CustomRepresentation/graphdb/custom_representation"
    }
  }
}[~/code/neo/server/examples]  curl http://localhost:7474/db/data/ext/CustomRepresentation/graphdb/custom_representation
{
  "extends" : "graphdb",
  "description" : "Serve a custom representation of the reference node",
  "name" : "custom_representation",
  "parameters" : [ ]
}[~/code/neo/server/examples] $ curl -X POST http://localhost:7474/db/data/ext/CustomRepresentation/graphdb/custom_representation
curl: option --X: is unknown
curl: try 'curl --help' or 'curl --manual' for more information
[~/code/neo/server/examples] $ curl -d "" http://localhost:7474/db/data/ext/CustomRepresentation/graphdb/custom_representation
{
  "hello_world" : "hello world from node 0"
}