private boolean needMoreEvents() { if (this.events.isEmpty()) { return true; } Event event = this.events.peek(); if (event instanceof DocumentStartEvent) { return this.needEvents(1); } else if (event instanceof SequenceStartEvent) { return this.needEvents(2); } else if (event instanceof MappingStartEvent) { return this.needEvents(3); } else { return false; } }
protected Node composeSequenceNode(String anchor) { SequenceStartEvent startEvent = (SequenceStartEvent) parser.getEvent(); String tag = startEvent.getTag(); Tag nodeTag; boolean resolved = false; if (tag == null || tag.equals("!")) { nodeTag = resolver.resolve(NodeId.sequence, null, startEvent.getImplicit()); resolved = true; } else { nodeTag = new Tag(tag); } final ArrayList<Node> children = new ArrayList<Node>(); SequenceNode node = new SequenceNode(nodeTag, resolved, children, startEvent.getStartMark(), null, startEvent.getFlowStyle()); if (anchor != null) { anchors.put(anchor, node); } while (!parser.checkEvent(Event.ID.SequenceEnd)) { children.add(composeNode(node)); } Event endEvent = parser.getEvent(); node.setEndMark(endEvent.getEndMark()); return node; }
public void testGetEvent2() { String data = "american:\n - Boston Red Sox"; StreamReader reader = new StreamReader(data); Parser parser = new ParserImpl(reader); Mark dummyMark = new Mark("dummy", 0, 0, 0, "", 0); LinkedList<Event> etalonEvents = new LinkedList<Event>(); etalonEvents.add(new StreamStartEvent(dummyMark, dummyMark)); etalonEvents.add(new DocumentStartEvent(dummyMark, dummyMark, false, null, null)); etalonEvents .add(new MappingStartEvent(null, null, true, dummyMark, dummyMark, Boolean.TRUE)); etalonEvents.add(new ScalarEvent(null, null, new ImplicitTuple(true, false), "american", dummyMark, dummyMark, (char) 0)); etalonEvents.add(new SequenceStartEvent(null, null, true, dummyMark, dummyMark, Boolean.FALSE)); etalonEvents.add(new ScalarEvent(null, null, new ImplicitTuple(true, false), "Boston Red Sox", dummyMark, dummyMark, (char) 0)); etalonEvents.add(new SequenceEndEvent(dummyMark, dummyMark)); etalonEvents.add(new MappingEndEvent(dummyMark, dummyMark)); etalonEvents.add(new DocumentEndEvent(dummyMark, dummyMark, false)); etalonEvents.add(new StreamEndEvent(dummyMark, dummyMark)); check(etalonEvents, parser); }
private Node composeSequenceNode(String anchor) { SequenceStartEvent startEvent = (SequenceStartEvent) parser.getEvent(); String tag = startEvent.getTag(); Tag nodeTag; boolean resolved = false; if (tag == null || tag.equals("!")) { nodeTag = resolver.resolve(NodeId.sequence, null, startEvent.getImplicit()); resolved = true; } else { nodeTag = new Tag(tag); } final ArrayList<Node> children = new ArrayList<Node>(); SequenceNode node = new SequenceNode(nodeTag, resolved, children, startEvent.getStartMark(), null, startEvent.getFlowStyle()); if (anchor != null) { anchors.put(anchor, node); } while (!parser.checkEvent(Event.ID.SequenceEnd)) { children.add(composeNode(node)); } Event endEvent = parser.getEvent(); node.setEndMark(endEvent.getEndMark()); return node; }
private Node composeSequenceNode(final String anchor) { SequenceStartEvent startEvent = (SequenceStartEvent) parser.getEvent(); String tag = startEvent.getTag(); Tag nodeTag; boolean resolved = false; if (tag == null || tag.equals("!")) { nodeTag = resolver.resolve(NodeId.sequence, null, startEvent.getImplicit()); resolved = true; } else { nodeTag = new Tag(tag); } final ArrayList<Node> children = new ArrayList<Node>(); SequenceNode node = new SequenceNode(nodeTag, resolved, children, startEvent.getStartMark(), null, startEvent.getFlowStyle()); if (anchor != null) { anchors.put(anchor, node); } int index = 0; while (!parser.checkEvent(Event.ID.SequenceEnd)) { children.add(composeNode(node)); index++; } Event endEvent = parser.getEvent(); node.setEndMark(endEvent.getEndMark()); return node; }
private boolean needMoreEvents() { if (events.isEmpty()) { return true; } Event event = events.peek(); if (event instanceof DocumentStartEvent) { return needEvents(1); } else if (event instanceof SequenceStartEvent) { return needEvents(2); } else if (event instanceof MappingStartEvent) { return needEvents(3); } else { return false; } }
private void expectNode(boolean root, boolean mapping, boolean simpleKey) throws IOException { rootContext = root; mappingContext = mapping; simpleKeyContext = simpleKey; if (event instanceof AliasEvent) { expectAlias(); } else if (event instanceof ScalarEvent || event instanceof CollectionStartEvent) { processAnchor("&"); processTag(); if (event instanceof ScalarEvent) { expectScalar(); } else if (event instanceof SequenceStartEvent) { if (flowLevel != 0 || canonical || ((SequenceStartEvent) event).getFlowStyle() || checkEmptySequence()) { expectFlowSequence(); } else { expectBlockSequence(); } } else {// MappingStartEvent if (flowLevel != 0 || canonical || ((MappingStartEvent) event).getFlowStyle() || checkEmptyMapping()) { expectFlowMapping(); } else { expectBlockMapping(); } } } else { throw new EmitterException("需要 NodeEvent 事件, 但却得到了 " + event); } }
private void expectNode(boolean root, boolean mapping, boolean simpleKey) throws IOException { rootContext = root; mappingContext = mapping; simpleKeyContext = simpleKey; if (event instanceof AliasEvent) { expectAlias(); } else if (event instanceof ScalarEvent || event instanceof CollectionStartEvent) { processAnchor("&"); processTag(); if (event instanceof ScalarEvent) { expectScalar(); } else if (event instanceof SequenceStartEvent) { if (flowLevel != 0 || canonical || ((SequenceStartEvent) event).getFlowStyle() || checkEmptySequence()) { expectFlowSequence(); } else { expectBlockSequence(); } } else {// MappingStartEvent if (flowLevel != 0 || canonical || ((MappingStartEvent) event).getFlowStyle() || checkEmptyMapping()) { expectFlowMapping(); } else { expectBlockMapping(); } } } else { throw new EmitterException("expected NodeEvent, but got " + event); } }
public void testGetEvent2() { String data = "american:\n - Boston Red Sox"; StreamReader reader = new StreamReader(data); Parser parser = new ParserImpl(reader); Mark dummyMark = new Mark("dummy", 0, 0, 0, "", 0); LinkedList<Event> etalonEvents = new LinkedList<Event>(); etalonEvents.add(new StreamStartEvent(dummyMark, dummyMark)); etalonEvents.add(new DocumentStartEvent(dummyMark, dummyMark, false, null, null)); etalonEvents .add(new MappingStartEvent(null, null, true, dummyMark, dummyMark, Boolean.TRUE)); etalonEvents.add(new ScalarEvent(null, null, new ImplicitTuple(true, false), "american", dummyMark, dummyMark, (char) 0)); etalonEvents.add(new SequenceStartEvent(null, null, true, dummyMark, dummyMark, Boolean.FALSE)); etalonEvents.add(new ScalarEvent(null, null, new ImplicitTuple(true, false), "Boston Red Sox", dummyMark, dummyMark, (char) 0)); etalonEvents.add(new SequenceEndEvent(dummyMark, dummyMark)); etalonEvents.add(new MappingEndEvent(dummyMark, dummyMark)); etalonEvents.add(new DocumentEndEvent(dummyMark, dummyMark, false)); etalonEvents.add(new StreamEndEvent(dummyMark, dummyMark)); while (parser.checkEvent(null)) { Event event = parser.getEvent(); if (etalonEvents.isEmpty()) { fail("unexpected event: " + event); } assertEquals(etalonEvents.removeFirst(), event); } assertFalse("Must contain no more events: " + parser.getEvent(), parser.checkEvent(null)); }
private Node composeSequenceNode(String anchor) { SequenceStartEvent startEvent = (SequenceStartEvent) parser.getEvent(); String tag = startEvent.getTag(); Tag nodeTag; boolean resolved = false; if (tag == null || tag.equals("!")) { nodeTag = resolver.resolve(NodeId.sequence, null, startEvent.getImplicit()); resolved = true; } else { nodeTag = new Tag(tag); } final ArrayList<Node> children = new ArrayList<Node>(); SequenceNode node = new SequenceNode(nodeTag, resolved, children, startEvent.getStartMark(), null, startEvent.getFlowStyle()); if (anchor != null) { anchors.put(anchor, node); } @SuppressWarnings("unused") int index = 0; while (!parser.checkEvent(Event.ID.SequenceEnd)) { children.add(composeNode(node)); index++; } Event endEvent = parser.getEvent(); node.setEndMark(endEvent.getEndMark()); return node; }
private void serializeNode(Node node, Node parent) throws IOException { if (node.getNodeId() == NodeId.anchor) { node = ((AnchorNode) node).getRealNode(); } String tAlias = this.anchors.get(node); if (this.serializedNodes.contains(node)) { this.emitter.emit(new AliasEvent(tAlias, null, null)); } else { this.serializedNodes.add(node); switch (node.getNodeId()) { case scalar: ScalarNode scalarNode = (ScalarNode) node; Tag detectedTag = this.resolver.resolve(NodeId.scalar, scalarNode.getValue(), true); Tag defaultTag = this.resolver.resolve(NodeId.scalar, scalarNode.getValue(), false); ImplicitTuple tuple = new ImplicitTuple(node.getTag().equals(detectedTag), node .getTag().equals(defaultTag)); ScalarEvent event = new ScalarEvent(tAlias, node.getTag().getValue(), tuple, scalarNode.getValue(), null, null, scalarNode.getStyle()); this.emitter.emit(event); break; case sequence: SequenceNode seqNode = (SequenceNode) node; boolean implicitS = node.getTag().equals(this.resolver.resolve(NodeId.sequence, null, true)); this.emitter.emit(new SequenceStartEvent(tAlias, node.getTag().getValue(), implicitS, null, null, seqNode.getFlowStyle())); List<Node> list = seqNode.getValue(); for (Node item : list) { serializeNode(item, node); } this.emitter.emit(new SequenceEndEvent(null, null)); break; default:// instance of MappingNode Tag implicitTag = this.resolver.resolve(NodeId.mapping, null, true); boolean implicitM = node.getTag().equals(implicitTag); this.emitter.emit(new MappingStartEvent(tAlias, node.getTag().getValue(), implicitM, null, null, ((CollectionNode) node).getFlowStyle())); MappingNode mnode = (MappingNode) node; List<NodeTuple> map = mnode.getValue(); for (NodeTuple row : map) { Node key = row.getKeyNode(); Node value = row.getValueNode(); serializeNode(key, mnode); serializeNode(value, mnode); } this.emitter.emit(new MappingEndEvent(null, null)); } } }
private boolean checkEmptySequence() { return event instanceof SequenceStartEvent && !events.isEmpty() && events.peek() instanceof SequenceEndEvent; }
void expectNode(boolean root, boolean mapping, boolean simpleKey, @Nullable Integer lastIndent) throws IOException { this.rootContext = root; this.mappingContext = mapping; this.simpleKeyContext = simpleKey; if (this.event instanceof AliasEvent) { this.expectAlias(); } else if ((this.event instanceof ScalarEvent) || (this.event instanceof CollectionStartEvent)) { this.processAnchor("&"); this.processTag(); if (this.event instanceof ScalarEvent) { this.expectScalar(lastIndent); } else if (this.event instanceof SequenceStartEvent) { if ((this.flowLevel != 0) || this.canonical || ((SequenceStartEvent) this.event).getFlowStyle() || this.checkEmptySequence()) { this.expectFlowSequence(); } else { this.expectBlockSequence(); } } else {// MappingStartEvent if ((this.flowLevel != 0) || this.canonical || ((MappingStartEvent) this.event).getFlowStyle() || this.checkEmptyMapping()) { this.expectFlowMapping(); } else { this.expectBlockMapping(); } } } else { throw new EmitterException("expected NodeEvent, but got " + this.event); } }
private boolean checkEmptySequence() { return (this.event instanceof SequenceStartEvent) && ! this.events.isEmpty() && (this.events.peek() instanceof SequenceEndEvent); }
private void serializeNode(Node node, @Nullable Node parent, LinkedList<String> commentPath, boolean mappingScalar) throws IOException { if (node.getNodeId() == NodeId.anchor) { node = ((AnchorNode) node).getRealNode(); } String tAlias = this.anchors.get(node); if (this.serializedNodes.contains(node)) { this.emitter.emit(new AliasEvent(tAlias, null, null)); } else { this.serializedNodes.add(node); switch (node.getNodeId()) { case scalar: ScalarNode scalarNode = (ScalarNode) node; Tag detectedTag = this.resolver.resolve(NodeId.scalar, scalarNode.getValue(), true); Tag defaultTag = this.resolver.resolve(NodeId.scalar, scalarNode.getValue(), false); String[] pathNodes = commentPath.toArray(new String[commentPath.size()]); String comment; if (this.checkCommentsSet(pathNodes)) { comment = this.comments.getComment(pathNodes); } else { comment = null; } ImplicitTuple tuple = new ImplicitTupleExtension(node.getTag().equals(detectedTag), node.getTag().equals(defaultTag), comment); ScalarEvent event = new ScalarEvent(tAlias, node.getTag().getValue(), tuple, scalarNode.getValue(), null, null, scalarNode.getStyle()); this.emitter.emit(event); break; case sequence: SequenceNode seqNode = (SequenceNode) node; boolean implicitS = node.getTag().equals(this.resolver.resolve(NodeId.sequence, null, true)); this.emitter.emit(new SequenceStartEvent(tAlias, node.getTag().getValue(), implicitS, null, null, seqNode.getFlowStyle())); List<Node> list = seqNode.getValue(); for (Node item : list) { this.serializeNode(item, node, commentPath, false); } this.emitter.emit(new SequenceEndEvent(null, null)); break; default:// instance of MappingNode Tag implicitTag = this.resolver.resolve(NodeId.mapping, null, true); boolean implicitM = node.getTag().equals(implicitTag); this.emitter.emit(new MappingStartEvent(tAlias, node.getTag().getValue(), implicitM, null, null, ((CollectionNode) node).getFlowStyle())); MappingNode mnode = (MappingNode) node; List<NodeTuple> map = mnode.getValue(); for (NodeTuple row : map) { Node key = row.getKeyNode(); Node value = row.getValueNode(); if (key instanceof ScalarNode) { commentPath.add(((ScalarNode) key).getValue()); } this.serializeNode(key, mnode, commentPath, true); this.serializeNode(value, mnode, commentPath, false); if (key instanceof ScalarNode) { commentPath.removeLast(); } } this.emitter.emit(new MappingEndEvent(null, null)); } } }
public SequenceStartEvent expectSequenceStart() { return (SequenceStartEvent) expect(Event.ID.SequenceStart); }