com.orientechnologies.orient.graph.graphml

Class OGraphSONReader

java.lang.Object

com.orientechnologies.orient.graph.graphml.OGraphSONReader

public class OGraphSONReader
extends Object

GraphSONReader reads the data from a TinkerPop JSON stream to a graph.

Author:

Stephen Mallette (http://stephen.genoprime.com), Luca Garulli (l.garulli--(at)--orientdb.com)

Constructor Summary

Constructors

Constructor and Description
OGraphSONReader(com.tinkerpop.blueprints.Graph graph)

Method Summary

Modifier and Type	Method and Description
OCommandOutputListener	getOutput()
void	inputGraph(InputStream jsonInputStream) Input the JSON stream data into the graph.
void	inputGraph(InputStream jsonInputStream, int bufferSize)
void	inputGraph(InputStream jsonInputStream, int bufferSize, Set<String> edgePropertyKeys, Set<String> vertexPropertyKeys) Input the JSON stream data into the graph.
void	inputGraph(String filename) Input the JSON stream data into the graph.
void	inputGraph(String filename, int bufferSize)
void	inputGraph(String filename, int bufferSize, Set<String> edgePropertyKeys, Set<String> vertexPropertyKeys) Input the JSON stream data into the graph.
protected void	printStatus(com.fasterxml.jackson.core.JsonParser jp, long importedVertices, long importedEdges)
OGraphSONReader	setOutput(OCommandOutputListener output)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

OGraphSONReader

public OGraphSONReader(com.tinkerpop.blueprints.Graph graph)

Parameters:

graph - the graph to populate with the JSON data

Method Detail

inputGraph

public void inputGraph(InputStream jsonInputStream)
                throws IOException

Input the JSON stream data into the graph. In practice, usually the provided graph is empty.

Parameters:

jsonInputStream - an InputStream of JSON data

Throws:

IOException - thrown when the JSON data is not correctly formatted

inputGraph

public void inputGraph(String filename)
                throws IOException

Input the JSON stream data into the graph. In practice, usually the provided graph is empty.

Parameters:

filename - name of a file of JSON data

Throws:

IOException - thrown when the JSON data is not correctly formatted

inputGraph

public void inputGraph(InputStream jsonInputStream,
                       int bufferSize)
                throws IOException

Throws:

IOException

inputGraph

public void inputGraph(String filename,
                       int bufferSize)
                throws IOException

Throws:

IOException

inputGraph

public void inputGraph(String filename,
                       int bufferSize,
                       Set<String> edgePropertyKeys,
                       Set<String> vertexPropertyKeys)
                throws IOException

Input the JSON stream data into the graph. More control over how data is streamed is provided by this method.

Parameters:

filename - name of a file of JSON data

bufferSize - the amount of elements to hold in memory before committing a transactions (only valid for TransactionalGraphs)

Throws:

IOException - thrown when the JSON data is not correctly formatted

inputGraph

public void inputGraph(InputStream jsonInputStream,
                       int bufferSize,
                       Set<String> edgePropertyKeys,
                       Set<String> vertexPropertyKeys)
                throws IOException

Input the JSON stream data into the graph. More control over how data is streamed is provided by this method.

Parameters:

jsonInputStream - an InputStream of JSON data

bufferSize - the amount of elements to hold in memory before committing a transactions (only valid for TransactionalGraphs)

Throws:

IOException - thrown when the JSON data is not correctly formatted

getOutput

public OCommandOutputListener getOutput()

setOutput

public OGraphSONReader setOutput(OCommandOutputListener output)

printStatus

protected void printStatus(com.fasterxml.jackson.core.JsonParser jp,
                           long importedVertices,
                           long importedEdges)