|
||||||||||
PREV CLASS NEXT CLASS | FRAMES NO FRAMES | |||||||||
SUMMARY: NESTED | FIELD | CONSTR | METHOD | DETAIL: FIELD | CONSTR | METHOD |
java.lang.Object org.xml.sax.helpers.DefaultHandler edu.uci.ics.jung.io.GraphMLReader<G,V,E>
public class GraphMLReader<G extends Hypergraph<V,E>,V,E>
Reads in data from a GraphML-formatted file and generates graphs based on that data. Currently supports the following parts of the GraphML specification:
data
graph, vertex, edge descriptions and data
descriptions
vertex and edge IDs
get
methods.
Does not currently support nested graphs or ports.
Note that the user is responsible for supplying a graph
Factory
that can support the edge types in the supplied
GraphML file. If the graph generated by the Factory
is
not compatible (for example: if the graph does not accept directed
edges, and the GraphML file contains a directed edge) then the results
are graph-implementation-dependent.
Nested Class Summary | |
---|---|
protected static class |
GraphMLReader.KeyType
|
protected static class |
GraphMLReader.TagState
|
Field Summary | |
---|---|
protected E |
current_edge
|
protected G |
current_graph
|
protected String |
current_key
|
protected LinkedList<GraphMLReader.TagState> |
current_states
|
protected V |
current_vertex
|
protected EdgeType |
default_edgetype
|
protected Map<E,String> |
edge_desc
|
protected org.apache.commons.collections15.Factory<E> |
edge_factory
|
protected org.apache.commons.collections15.BidiMap<E,String> |
edge_ids
|
protected Map<String,GraphMLMetadata<E>> |
edge_metadata
|
protected Map<G,String> |
graph_desc
|
protected org.apache.commons.collections15.Factory<G> |
graph_factory
|
protected Map<String,GraphMLMetadata<G>> |
graph_metadata
|
protected List<G> |
graphs
|
protected Collection<V> |
hyperedge_vertices
|
protected GraphMLReader.KeyType |
key_type
|
protected SAXParser |
saxp
|
protected org.apache.commons.collections15.BidiMap<String,GraphMLReader.TagState> |
tag_state
|
protected Map<V,String> |
vertex_desc
|
protected org.apache.commons.collections15.Factory<V> |
vertex_factory
|
protected org.apache.commons.collections15.BidiMap<V,String> |
vertex_ids
|
protected Map<String,GraphMLMetadata<V>> |
vertex_metadata
|
Constructor Summary | |
---|---|
GraphMLReader()
Creates a GraphMLReader instance that assigns the vertex
and edge id strings to be the vertex and edge objects,
as well as their IDs. |
|
GraphMLReader(org.apache.commons.collections15.Factory<V> vertex_factory,
org.apache.commons.collections15.Factory<E> edge_factory)
Creates a GraphMLReader instance with the specified
vertex and edge factories. |
Method Summary | ||
---|---|---|
protected
|
addDatum(Map<String,GraphMLMetadata<T>> metadata,
T current_elt,
String text)
|
|
protected
|
addExtraData(Map<String,String> atts,
Map<String,GraphMLMetadata<T>> metadata_map,
T current_elt)
|
|
protected void |
assignEdgeSourceTarget(E e,
Attributes atts,
Map<String,String> edge_atts)
|
|
void |
characters(char[] ch,
int start,
int length)
|
|
protected void |
clearData()
|
|
protected void |
createEdge(Attributes atts,
GraphMLReader.TagState state)
|
|
protected void |
createKey(Attributes atts)
|
|
protected void |
createVertex(Attributes atts)
|
|
void |
endElement(String uri,
String name,
String qName)
|
|
protected Map<String,String> |
getAttributeMap(Attributes atts)
|
|
Map<E,String> |
getEdgeDescriptions()
Returns a map from edges to edge descriptions. |
|
org.apache.commons.collections15.BidiMap<E,String> |
getEdgeIDs()
Returns a bidirectional map relating edges and IDs. |
|
Map<String,GraphMLMetadata<E>> |
getEdgeMetadata()
Returns a map from edge type name to type metadata. |
|
Map<G,String> |
getGraphDescriptions()
Returns a map from graphs to graph descriptions. |
|
Map<String,GraphMLMetadata<G>> |
getGraphMetadata()
Returns a map from graph type name to type metadata. |
|
Map<V,String> |
getVertexDescriptions()
Returns a map from vertices to vertex descriptions. |
|
org.apache.commons.collections15.BidiMap<V,String> |
getVertexIDs()
Returns a bidirectional map relating vertices and IDs. |
|
Map<String,GraphMLMetadata<V>> |
getVertexMetadata()
Returns a map from vertex type name to type metadata. |
|
protected void |
handleData(Attributes atts)
|
|
protected void |
initializeData()
This is separate from initialize() because these data structures are shared among all graphs loaded (i.e., they're defined inside graphml rather than graph . |
|
void |
load(Reader reader,
G g)
Populates the specified graph with the data parsed from the reader. |
|
void |
load(String filename,
G g)
Populates the specified graph with the data parsed from the specified file. |
|
List<G> |
loadMultiple(Reader reader,
org.apache.commons.collections15.Factory<G> graph_factory)
Returns a list of the graphs parsed from the specified reader, as created by the specified factory. |
|
List<G> |
loadMultiple(String filename,
org.apache.commons.collections15.Factory<G> graph_factory)
Returns a list of the graphs parsed from the specified file, as created by the specified factory. |
|
protected void |
parse(Reader reader)
|
|
void |
startElement(String uri,
String name,
String qName,
Attributes atts)
|
Methods inherited from class org.xml.sax.helpers.DefaultHandler |
---|
endDocument, endPrefixMapping, error, fatalError, ignorableWhitespace, notationDecl, processingInstruction, resolveEntity, setDocumentLocator, skippedEntity, startDocument, startPrefixMapping, unparsedEntityDecl, warning |
Methods inherited from class java.lang.Object |
---|
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Field Detail |
---|
protected SAXParser saxp
protected EdgeType default_edgetype
protected G extends Hypergraph<V,E> current_graph
protected V current_vertex
protected E current_edge
protected String current_key
protected LinkedList<GraphMLReader.TagState> current_states
protected org.apache.commons.collections15.BidiMap<String,GraphMLReader.TagState> tag_state
protected org.apache.commons.collections15.Factory<G extends Hypergraph<V,E>> graph_factory
protected org.apache.commons.collections15.Factory<V> vertex_factory
protected org.apache.commons.collections15.Factory<E> edge_factory
protected org.apache.commons.collections15.BidiMap<V,String> vertex_ids
protected org.apache.commons.collections15.BidiMap<E,String> edge_ids
protected Map<String,GraphMLMetadata<G extends Hypergraph<V,E>>> graph_metadata
protected Map<String,GraphMLMetadata<V>> vertex_metadata
protected Map<String,GraphMLMetadata<E>> edge_metadata
protected Map<V,String> vertex_desc
protected Map<E,String> edge_desc
protected Map<G extends Hypergraph<V,E>,String> graph_desc
protected GraphMLReader.KeyType key_type
protected Collection<V> hyperedge_vertices
protected List<G extends Hypergraph<V,E>> graphs
Constructor Detail |
---|
public GraphMLReader(org.apache.commons.collections15.Factory<V> vertex_factory, org.apache.commons.collections15.Factory<E> edge_factory) throws ParserConfigurationException, SAXException
GraphMLReader
instance with the specified
vertex and edge factories.
vertex_factory
- the vertex factory to use to create vertex objectsedge_factory
- the edge factory to use to create edge objects
ParserConfigurationException
SAXException
public GraphMLReader() throws ParserConfigurationException, SAXException
GraphMLReader
instance that assigns the vertex
and edge id
strings to be the vertex and edge objects,
as well as their IDs.
Note that this requires that (a) each edge have a valid ID, which is not
normally a requirement for edges in GraphML, and (b) that the vertex
and edge types be assignment-compatible with String
.
ParserConfigurationException
SAXException
Method Detail |
---|
public List<G> loadMultiple(Reader reader, org.apache.commons.collections15.Factory<G> graph_factory) throws IOException
IOException
public List<G> loadMultiple(String filename, org.apache.commons.collections15.Factory<G> graph_factory) throws IOException
IOException
public void load(Reader reader, G g) throws IOException
IOException
public void load(String filename, G g) throws IOException
IOException
protected void clearData()
protected void initializeData()
graphml
rather than graph
.
protected void parse(Reader reader) throws IOException
IOException
public void startElement(String uri, String name, String qName, Attributes atts) throws SAXNotSupportedException
startElement
in interface ContentHandler
startElement
in class DefaultHandler
SAXNotSupportedException
protected <T> void addExtraData(Map<String,String> atts, Map<String,GraphMLMetadata<T>> metadata_map, T current_elt)
T
- atts
- metadata_map
- current_elt
- public void characters(char[] ch, int start, int length) throws SAXNotSupportedException
characters
in interface ContentHandler
characters
in class DefaultHandler
SAXNotSupportedException
protected <T> void addDatum(Map<String,GraphMLMetadata<T>> metadata, T current_elt, String text) throws SAXNotSupportedException
SAXNotSupportedException
public void endElement(String uri, String name, String qName) throws SAXNotSupportedException
endElement
in interface ContentHandler
endElement
in class DefaultHandler
SAXNotSupportedException
protected Map<String,String> getAttributeMap(Attributes atts)
protected void handleData(Attributes atts) throws SAXNotSupportedException
SAXNotSupportedException
protected void createKey(Attributes atts) throws SAXNotSupportedException
SAXNotSupportedException
protected void createVertex(Attributes atts) throws SAXNotSupportedException
SAXNotSupportedException
protected void createEdge(Attributes atts, GraphMLReader.TagState state) throws SAXNotSupportedException
SAXNotSupportedException
protected void assignEdgeSourceTarget(E e, Attributes atts, Map<String,String> edge_atts) throws SAXNotSupportedException
SAXNotSupportedException
public org.apache.commons.collections15.BidiMap<V,String> getVertexIDs()
public org.apache.commons.collections15.BidiMap<E,String> getEdgeIDs()
public Map<String,GraphMLMetadata<G>> getGraphMetadata()
public Map<String,GraphMLMetadata<V>> getVertexMetadata()
public Map<String,GraphMLMetadata<E>> getEdgeMetadata()
public Map<G,String> getGraphDescriptions()
public Map<V,String> getVertexDescriptions()
public Map<E,String> getEdgeDescriptions()
|
||||||||||
PREV CLASS NEXT CLASS | FRAMES NO FRAMES | |||||||||
SUMMARY: NESTED | FIELD | CONSTR | METHOD | DETAIL: FIELD | CONSTR | METHOD |