initial structure for graph model

src/main/java/kieker/analysis/graph/Edge.java

+package kieker.analysis.graph;
+
+public interface Edge extends Element {
+
+	// public Vertex getVertex(Direction direction) throws IllegalArgumentException;
+
+}

src/main/java/kieker/analysis/graph/Element.java

+package kieker.analysis.graph;
+
+import java.util.Set;
+
+public abstract interface Element {
+
+	public <T> T getProperty(String key);
+
+	public Set<String> getPropertyKeys();
+
+	public void setProperty(String key, Object value);
+
+	public <T> T removeProperty(String key);
+
+	public void remove();
+
+	public Object getId();
+}

src/main/java/kieker/analysis/graph/Graph.java

+package kieker.analysis.graph;
+
+public interface Graph {
+
+	public Vertex addVertex(Object id);
+
+	public Vertex getVertex(Object id);
+
+	public void removeVertex(Vertex vertex);
+
+	public Iterable<Vertex> getVertices();
+
+	public Edge addEdge(Object id, Vertex outVertex, Vertex inVertex);
+
+	public Edge getEdge(Object id);
+
+	public void removeEdge(Edge edge);
+
+	public Iterable<Edge> getEdges();
+
+}

src/main/java/kieker/analysis/graph/Subgraph.java

+package kieker.analysis.graph;
+
+public interface Subgraph {
+
+}

src/main/java/kieker/analysis/graph/Vertex.java

+package kieker.analysis.graph;
+
+public interface Vertex extends Element {
+
+	public Boolean hasSubgraph();
+
+	public Graph getSubgraph();
+
+	// public Iterable<Edge> getEdges(Direction direction, String... labels);
+
+	// public Iterable<Vertex> getVertices(Direction direction, String... labels);
+
+	// public Edge addEdge(String label, Vertex inVertex);
+
+}

src/main/java/kieker/analysis/graph/impl/EdgeImp.java

+package kieker.analysis.graph.impl;
+
+import kieker.analysis.graph.Edge;
+
+class EdgeImp extends ElementImpl implements Edge {
+
+	// public Vertex getVertex(Direction direction) throws IllegalArgumentException;
+
+}

src/main/java/kieker/analysis/graph/impl/ElementImpl.java

+package kieker.analysis.graph.impl;
+
+import java.util.Set;
+
+import kieker.analysis.graph.Element;
+
+abstract class ElementImpl implements Element {
+
+	@Override
+	public <T> T getProperty(final String key) {
+		// TODO Auto-generated method stub
+		return null;
+	}
+
+	@Override
+	public Set<String> getPropertyKeys() {
+		// TODO Auto-generated method stub
+		return null;
+	}
+
+	@Override
+	public void setProperty(final String key, final Object value) {
+		// TODO Auto-generated method stub
+
+	}
+
+	@Override
+	public <T> T removeProperty(final String key) {
+		// TODO Auto-generated method stub
+		return null;
+	}
+
+	@Override
+	public void remove() {
+		// TODO Auto-generated method stub
+
+	}
+
+	@Override
+	public Object getId() {
+		// TODO Auto-generated method stub
+		return null;
+	}
+
+}

src/main/java/kieker/analysis/graph/impl/GraphImpl.java

+package kieker.analysis.graph.impl;
+
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.Map;
+
+import kieker.analysis.graph.Edge;
+import kieker.analysis.graph.Graph;
+import kieker.analysis.graph.Vertex;
+
+public class GraphImpl implements Graph {
+
+	protected Map<String, Vertex> vertices = new HashMap<String, Vertex>();
+	protected Map<String, Edge> edges = new HashMap<String, Edge>();
+
+	public GraphImpl() {}
+
+	@Override
+	public Vertex addVertex(final Object id) {
+		// TODO Auto-generated method stub
+		return null;
+	}
+
+	@Override
+	public Vertex getVertex(final Object id) {
+		// TODO exception if not exists
+		String idString = id.toString();
+		return this.vertices.get(idString);
+	}
+
+	@Override
+	public Iterable<Vertex> getVertices() {
+		return new ArrayList<Vertex>(this.vertices.values());
+	}
+
+	@Override
+	public void removeVertex(final Vertex vertex) {
+		// TODO Auto-generated method stub
+
+	}
+
+	@Override
+	public Edge addEdge(final Object id, final Vertex outVertex, final Vertex inVertex) {
+		// TODO Auto-generated method stub
+		return null;
+	}
+
+	@Override
+	public Edge getEdge(final Object id) {
+		// TODO exception if not exists
+		String idString = id.toString();
+		return this.edges.get(idString);
+	}
+
+	@Override
+	public Iterable<Edge> getEdges() {
+		return new ArrayList<Edge>(this.edges.values());
+	}
+
+	@Override
+	public void removeEdge(final Edge edge) {
+		// TODO Auto-generated method stub
+
+	}
+
+}

src/main/java/kieker/analysis/graph/impl/VertexImpl.java

+package kieker.analysis.graph.impl;
+
+import kieker.analysis.graph.Graph;
+import kieker.analysis.graph.Vertex;
+
+class VertexImpl extends ElementImpl implements Vertex {
+
+	@Override
+	public Boolean hasSubgraph() {
+		// TODO Auto-generated method stub
+		return false;
+	}
+
+	@Override
+	public Graph getSubgraph() {
+		// TODO Auto-generated method stub
+		return null;
+	}
+
+}