@Test
public void testRemoveReferenceNode() throws Exception {
GraphDatabaseService db = new ImpermanentGraphDatabase();
final GraphDatabaseShellServer server = new GraphDatabaseShellServer(db, false);
ShellClient client = new SameJvmClient(server);
Documenter doc = new Documenter("sample session", client);
doc.add("pwd", "", "where are we?");
doc.add("set name \"Jon\"", "", "On the current node, set the key \"name\" to value \"Jon\"");
doc.add("start n=node(0) return n", "Jon", "send a cypher query");
doc.add(
"mkrel -c -d i -t LIKES --np \"{'app':'foobar'}\"",
"",
"make an incoming relationship of type LIKES, create the end node with the node properties specified.");
doc.add("ls", "1", "where are we?");
doc.add("cd 1", "", "change to the newly created node");
doc.add("ls -avr", "LIKES", "list relationships, including relationshship id");
doc.add(
"mkrel -c -d i -t KNOWS --np \"{'name':'Bob'}\"",
"",
"create one more KNOWS relationship and the end node");
doc.add("pwd", "0", "print current history stack");
doc.add("ls -avr", "KNOWS", "verbose list relationships");
doc.run();
// TODO: implement support for removing root node and previous nodes in the history stack of PWD
// client.getServer().interpretLine( "rmnode -f 0", client.session(), client.getOutput() );
// client.getServer().interpretLine( "cd", client.session(), client.getOutput() );
// client.getServer().interpretLine( "pwd", client.session(), client.getOutput() );
server.shutdown();
db.shutdown();
}
@Test
public void testMatrix() throws Exception {
GraphDatabaseService db =
new ImpermanentGraphDatabase(
loadStrictly(new File("src/test/resources/autoindex.properties")));
final GraphDatabaseShellServer server = new GraphDatabaseShellServer(db, false);
ShellClient client = new SameJvmClient(server);
Documenter doc = new Documenter("a matrix example", client);
doc.add("mkrel -t ROOT -c -v", "created", "create the Thomas Andersson node");
doc.add("cd 1", "", "go to the new node");
doc.add("set name \"Thomas Andersson\"", "", "set the name property");
doc.add("mkrel -t KNOWS -cv", "", "create Thomas direct friends");
doc.add("cd 2", "", "go to the new node");
doc.add("set name \"Trinity\"", "", "set the name property");
doc.add("cd ..", "", "go back in the history stack");
doc.add("mkrel -t KNOWS -cv", "", "create Thomas direct friends");
doc.add("cd 3", "", "go to the new node");
doc.add("set name \"Morpheus\"", "", "set the name property");
doc.add("mkrel -t KNOWS -n 2", "", "create relationship to Trinity");
doc.add("ls -rv", "", "list the relationships of node 3");
doc.add("cd -r 2", "", "change the current position to relationship #2");
doc.add("set -t int age 3", "", "set the age property on the relationship");
doc.add("cd ..", "", "back to Morpheus");
doc.add("cd -r 3", "", "next relationsip");
doc.add("set -t int age 90", "", "set the age property on the relationship");
doc.add("cd start", "", "position to the start node of the current relationship");
doc.add(
"", "", "We're now standing on Morpheus node, so let's create the rest of the friends.");
doc.add("mkrel -t KNOWS -c", "", "new node");
doc.add("ls -r", "", "list relationships on the current node");
doc.add("cd 4", "", "go to Cypher");
doc.add("set name Cypher", "", "set the name");
doc.add("mkrel -ct KNOWS", "", "create new node from Cypher");
// TODO: how to list outgoing relationships?
// doc.add( "ls -rd out", "", "list relationships" );
doc.add("ls -r", "", "list relationships");
doc.add("cd 5", "", "go to the Agent Smith node");
doc.add("set name \"Agent Smith\"", "", "set the name");
doc.add("mkrel -cvt CODED_BY", "", "outgoing relationship and new node");
doc.add("cd 6", "", "go there");
doc.add("set name \"The Architect\"", "", "set the name");
doc.add("cd", "", "go to the first node in the history stack");
doc.add("", "", "Now, let's ask some questions");
doc.add(
"start morpheus = node:node_auto_index(name='Morpheus') "
+ "match morpheus-[:KNOWS]-zionist "
+ "return zionist.name",
"",
"Morpheus' friends, looking up Morpheus by name in the Neo4j autoindex");
doc.run();
server.shutdown();
db.shutdown();
}
protected static void printAndInterpretTemplateLines(
Collection<String> templateLines,
boolean forcePrintHitHeader,
boolean newLineBetweenHits,
NodeOrRelationship entity,
GraphDatabaseShellServer server,
Session session,
Output out)
throws ShellException, RemoteException {
if (templateLines.isEmpty() || forcePrintHitHeader) {
out.println(getDisplayName(server, session, entity, true));
}
if (!templateLines.isEmpty()) {
Map<String, Object> data = new HashMap<String, Object>();
data.put("i", entity.getId());
for (String command : templateLines) {
String line = TextUtil.templateString(command, data);
server.interpretLine(session.getId(), line, out);
}
}
if (newLineBetweenHits) {
out.println();
}
}
protected static NodeOrRelationship getThingById(GraphDatabaseShellServer server, TypedId typedId)
throws ShellException {
NodeOrRelationship result = null;
if (typedId.isNode()) {
try {
result = NodeOrRelationship.wrap(server.getDb().getNodeById(typedId.getId()));
} catch (NotFoundException e) {
throw new ShellException("Node " + typedId.getId() + " not found");
}
} else {
try {
result = NodeOrRelationship.wrap(server.getDb().getRelationshipById(typedId.getId()));
} catch (NotFoundException e) {
throw new ShellException("Relationship " + typedId.getId() + " not found");
}
}
return result;
}
/**
* @param server the {@link GraphDatabaseShellServer} to get the current node/relationship from.
* @param session the {@link Session} used by the client.
* @return the current node/relationship the client stands on at the moment.
* @throws ShellException if some error occured.
*/
public static NodeOrRelationship getCurrent(GraphDatabaseShellServer server, Session session)
throws ShellException {
String currentThing = (String) session.get(CURRENT_KEY);
NodeOrRelationship result = null;
if (currentThing == null) {
try {
result = NodeOrRelationship.wrap(server.getDb().getReferenceNode());
} catch (NotFoundException e) {
throw new ShellException("Reference node not found");
}
setCurrent(session, result);
} else {
TypedId typedId = new TypedId(currentThing);
result = getThingById(server, typedId);
}
return result;
}
@Override
protected void unload(GraphDatabaseShellServer server) {
server.shutdown();
}