/** Unit test to check for regression of [JACKSON-18]. */
public void testSmallNumbers() throws Exception {
ObjectMapper mapper = new ObjectMapper();
ArrayNode root = mapper.createArrayNode();
for (int i = -20; i <= 20; ++i) {
JsonNode n = root.numberNode(i);
root.add(n);
// Hmmh. Not sure why toString() won't be triggered otherwise...
assertEquals(String.valueOf(i), n.toString());
}
// Loop over 2 different serialization methods
for (int type = 0; type < 2; ++type) {
StringWriter sw = new StringWriter();
if (type == 0) {
JsonGenerator gen = new JsonFactory().createGenerator(sw);
root.serialize(gen, null);
gen.close();
} else {
mapper.writeValue(sw, root);
}
String doc = sw.toString();
JsonParser p = new JsonFactory().createParser(new StringReader(doc));
assertEquals(JsonToken.START_ARRAY, p.nextToken());
for (int i = -20; i <= 20; ++i) {
assertEquals(JsonToken.VALUE_NUMBER_INT, p.nextToken());
assertEquals(i, p.getIntValue());
assertEquals("" + i, p.getText());
}
assertEquals(JsonToken.END_ARRAY, p.nextToken());
p.close();
}
}
/** Method called to configure the generator as necessary and then call write functionality */
protected final void _configAndWriteValue(JsonGenerator jgen, Object value)
throws IOException, JsonGenerationException, JsonMappingException {
_configureJsonGenerator(jgen);
// [JACKSON-282]: consider Closeable
if (_config.isEnabled(SerializationFeature.CLOSE_CLOSEABLE) && (value instanceof Closeable)) {
_writeCloseable(jgen, value, _config);
return;
}
boolean closed = false;
try {
if (_rootType == null) {
_serializerProvider(_config).serializeValue(jgen, value);
} else {
_serializerProvider(_config).serializeValue(jgen, value, _rootType, _rootSerializer);
}
closed = true;
jgen.close();
} finally {
/* won't try to close twice; also, must catch exception (so it
* will not mask exception that is pending)
*/
if (!closed) {
try {
jgen.close();
} catch (IOException ioe) {
}
}
}
}
public void testFromArray() throws Exception {
ObjectMapper mapper = new ObjectMapper();
ArrayNode root = mapper.createArrayNode();
root.add(TEXT1);
root.add(3);
ObjectNode obj = root.addObject();
obj.put(FIELD1, true);
obj.putArray(FIELD2);
root.add(false);
/* Ok, ready... let's serialize using one of two alternate
* methods: first preferred (using generator)
* (there are 2 variants here too)
*/
for (int i = 0; i < 2; ++i) {
StringWriter sw = new StringWriter();
if (i == 0) {
JsonGenerator gen = new JsonFactory().createGenerator(sw);
root.serialize(gen, null);
gen.close();
} else {
mapper.writeValue(sw, root);
}
verifyFromArray(sw.toString());
}
// And then convenient but less efficient alternative:
verifyFromArray(root.toString());
}
public void testFromMap() throws Exception {
ObjectMapper mapper = new ObjectMapper();
ObjectNode root = mapper.createObjectNode();
root.put(FIELD4, TEXT2);
root.put(FIELD3, -1);
root.putArray(FIELD2);
root.put(FIELD1, DOUBLE_VALUE);
/* Let's serialize using one of two alternate methods:
* first preferred (using generator)
* (there are 2 variants here too)
*/
for (int i = 0; i < 2; ++i) {
StringWriter sw = new StringWriter();
if (i == 0) {
JsonGenerator gen = new JsonFactory().createGenerator(sw);
root.serialize(gen, null);
gen.close();
} else {
mapper.writeValue(sw, root);
}
verifyFromMap(sw.toString());
}
// And then convenient but less efficient alternative:
verifyFromMap(root.toString());
}
/**
* Helper method used when value to serialize is {@link Closeable} and its <code>close()</code>
* method is to be called right after serialization has been called
*/
private final void _writeCloseable(JsonGenerator jgen, Object value, SerializationConfig cfg)
throws IOException, JsonGenerationException, JsonMappingException {
Closeable toClose = (Closeable) value;
try {
if (_rootType == null) {
_serializerProvider(cfg).serializeValue(jgen, value);
} else {
_serializerProvider(cfg).serializeValue(jgen, value, _rootType, _rootSerializer);
}
JsonGenerator tmpJgen = jgen;
jgen = null;
tmpJgen.close();
Closeable tmpToClose = toClose;
toClose = null;
tmpToClose.close();
} finally {
/* Need to close both generator and value, as long as they haven't yet
* been closed
*/
if (jgen != null) {
try {
jgen.close();
} catch (IOException ioe) {
}
}
if (toClose != null) {
try {
toClose.close();
} catch (IOException ioe) {
}
}
}
}
/**
* Method called after an object field has been output, but before the value is output.
*
* <p>Default handling (without pretty-printing) will output a single colon to separate the two.
* Pretty-printer is to output a colon as well, but can surround that with other (white-space)
* decoration.
*/
@Override
public void writeObjectFieldValueSeparator(JsonGenerator jg) throws IOException {
if (_spacesInObjectEntries) {
jg.writeRaw(" : ");
} else {
jg.writeRaw(':');
}
}
@Override
public final byte[] serialize(MediaContent content) throws IOException {
ByteArrayOutputStream baos = outputStream(content);
JsonGenerator generator = constructGenerator(baos);
writeMediaContent(generator, content);
generator.close();
return baos.toByteArray();
}
@Override
public final void serializeItems(MediaContent[] items, OutputStream out) throws IOException {
JsonGenerator generator = constructGenerator(out);
// JSON allows simple sequences, so:
for (int i = 0, len = items.length; i < len; ++i) {
writeMediaContent(generator, items[i]);
}
generator.close();
}
public void testEmptyArrayWrite() throws Exception {
StringWriter sw = new StringWriter();
JsonGenerator gen = new JsonFactory().createGenerator(sw);
JsonStreamContext ctxt = gen.getOutputContext();
assertTrue(ctxt.inRoot());
assertFalse(ctxt.inArray());
assertFalse(ctxt.inObject());
assertEquals(0, ctxt.getEntryCount());
assertEquals(0, ctxt.getCurrentIndex());
gen.writeStartArray();
ctxt = gen.getOutputContext();
assertFalse(ctxt.inRoot());
assertTrue(ctxt.inArray());
assertFalse(ctxt.inObject());
assertEquals(0, ctxt.getEntryCount());
assertEquals(0, ctxt.getCurrentIndex());
gen.writeEndArray();
ctxt = gen.getOutputContext();
assertTrue("Should be in root, was " + ctxt.getTypeDesc(), ctxt.inRoot());
assertFalse(ctxt.inArray());
assertFalse(ctxt.inObject());
assertEquals(1, ctxt.getEntryCount());
// Index won't yet move
assertEquals(0, ctxt.getCurrentIndex());
gen.close();
String docStr = sw.toString();
JsonParser jp = createParserUsingReader(docStr);
assertEquals(JsonToken.START_ARRAY, jp.nextToken());
assertEquals(JsonToken.END_ARRAY, jp.nextToken());
jp.close();
// Ok, then array with nested empty array
sw = new StringWriter();
gen = new JsonFactory().createGenerator(sw);
gen.writeStartArray();
gen.writeStartArray();
gen.writeEndArray();
gen.writeEndArray();
gen.close();
docStr = sw.toString();
jp = createParserUsingReader(docStr);
assertEquals(JsonToken.START_ARRAY, jp.nextToken());
assertEquals(JsonToken.START_ARRAY, jp.nextToken());
assertEquals(JsonToken.END_ARRAY, jp.nextToken());
assertEquals(JsonToken.END_ARRAY, jp.nextToken());
assertEquals(null, jp.nextToken());
jp.close();
}
@Override
public void writeEndArray(JsonGenerator gen, int nrOfValues) throws IOException {
if (!_arrayIndenter.isInline()) {
--_nesting;
}
if (nrOfValues > 0) {
_arrayIndenter.writeIndentation(gen, _nesting);
} else {
gen.writeRaw(' ');
}
gen.writeRaw(']');
}
@Override
public void writeEndObject(JsonGenerator jg, int nrOfEntries) throws IOException {
if (!_objectIndenter.isInline()) {
--_nesting;
}
if (nrOfEntries > 0) {
_objectIndenter.writeIndentation(jg, _nesting);
} else {
jg.writeRaw(' ');
}
jg.writeRaw('}');
}
public void testInvalidArrayWrite() throws Exception {
StringWriter sw = new StringWriter();
JsonGenerator gen = new JsonFactory().createGenerator(sw);
gen.writeStartArray();
// Mismatch:
try {
gen.writeEndObject();
fail("Expected an exception for mismatched array/object write");
} catch (JsonGenerationException e) {
verifyException(e, "Current context not an object");
}
gen.close();
}
void doGiveHint(HanabiGame game, HttpServletRequest req, HttpServletResponse resp)
throws IOException, ServletException, HanabiException {
String target = req.getParameter("target");
String hint = req.getParameter("hint");
game.giveHint(target, hint);
JsonGenerator out = new JsonFactory().createJsonGenerator(resp.getOutputStream());
out.writeStartObject();
out.writeStringField("message", "hint given; " + game.hintsLeft + " hints left");
out.writeEndObject();
out.close();
}
@Override
public void writeStartObject(JsonGenerator jg) throws IOException {
jg.writeRaw('{');
if (!_objectIndenter.isInline()) {
++_nesting;
}
}
@Override
public void writeStartArray(JsonGenerator jg) throws IOException {
if (!_arrayIndenter.isInline()) {
++_nesting;
}
jg.writeRaw('[');
}
private void process(File input) throws IOException {
JsonFactory jsonF = new JsonFactory();
JsonParser jp = jsonF.createJsonParser(input);
TwitterEntry entry = read(jp);
// let's write to a file, using UTF-8 encoding (only sensible one)
StringWriter strw = new StringWriter();
JsonGenerator jg = jsonF.createJsonGenerator(strw);
jg.useDefaultPrettyPrinter(); // enable indentation just to make debug/testing easier
// Here we would modify it... for now, will just (re)indent it
write(jg, entry);
System.out.println("Result = [" + strw.toString() + "]");
}
private void write(JsonGenerator jg, TwitterEntry entry) throws IOException {
jg.writeStartObject();
// can either do "jg.writeFieldName(...) + jg.writeNumber()", or this:
jg.writeNumberField("id", entry.getId());
jg.writeStringField("text", entry.getText());
jg.writeNumberField("fromUserId", entry.getFromUserId());
jg.writeNumberField("toUserId", entry.getToUserId());
jg.writeStringField("langugeCode", entry.getLanguageCode());
jg.writeEndObject();
jg.close();
}
/**
* Helper method called to set or override settings of passed-in {@link JsonGenerator}
*
* @since 2.1
*/
private final void _configureJsonGenerator(JsonGenerator jgen) {
if (_prettyPrinter != null) {
PrettyPrinter pp = _prettyPrinter;
if (pp == NULL_PRETTY_PRINTER) {
jgen.setPrettyPrinter(null);
} else {
/* [JACKSON-851]: Better take care of stateful PrettyPrinters...
* like the DefaultPrettyPrinter.
*/
if (pp instanceof Instantiatable<?>) {
pp = (PrettyPrinter) ((Instantiatable<?>) pp).createInstance();
}
jgen.setPrettyPrinter(pp);
}
} else if (_config.isEnabled(SerializationFeature.INDENT_OUTPUT)) {
jgen.useDefaultPrettyPrinter();
}
// [JACKSON-520]: add support for pass-through schema:
if (_schema != null) {
jgen.setSchema(_schema);
}
}
/**
* Method that can be used to serialize any Java value as JSON output, using provided {@link
* JsonGenerator}.
*/
public void writeValue(JsonGenerator jgen, Object value)
throws IOException, JsonGenerationException, JsonMappingException {
// 10-Aug-2012, tatu: As per [Issue#12], may need to force PrettyPrinter settings, so:
_configureJsonGenerator(jgen);
if (_config.isEnabled(SerializationFeature.CLOSE_CLOSEABLE) && (value instanceof Closeable)) {
_writeCloseableValue(jgen, value, _config);
} else {
if (_rootType == null) {
_serializerProvider(_config).serializeValue(jgen, value);
} else {
_serializerProvider(_config).serializeValue(jgen, value, _rootType, _rootSerializer);
}
if (_config.isEnabled(SerializationFeature.FLUSH_AFTER_WRITE_VALUE)) {
jgen.flush();
}
}
}
protected void writeMediaContent(JsonGenerator generator, MediaContent content)
throws IOException {
generator.writeStartObject();
generator.writeFieldName(FIELD_MEDIA);
writeMedia(generator, content.media);
generator.writeFieldName(FIELD_IMAGES);
generator.writeStartArray();
for (Image i : content.images) {
writeImage(generator, i);
}
generator.writeEndArray();
generator.writeEndObject();
}
public void testSimpleArrayWrite() throws Exception {
StringWriter sw = new StringWriter();
JsonGenerator gen = new JsonFactory().createGenerator(sw);
gen.writeStartArray();
gen.writeNumber(13);
gen.writeBoolean(true);
gen.writeString("foobar");
gen.writeEndArray();
gen.close();
String docStr = sw.toString();
JsonParser jp = createParserUsingReader(docStr);
assertEquals(JsonToken.START_ARRAY, jp.nextToken());
assertEquals(JsonToken.VALUE_NUMBER_INT, jp.nextToken());
assertEquals(13, jp.getIntValue());
assertEquals(JsonToken.VALUE_TRUE, jp.nextToken());
assertEquals(JsonToken.VALUE_STRING, jp.nextToken());
assertEquals("foobar", jp.getText());
assertEquals(JsonToken.END_ARRAY, jp.nextToken());
assertEquals(null, jp.nextToken());
jp.close();
}
/**
* Helper method used when value to serialize is {@link Closeable} and its <code>close()</code>
* method is to be called right after serialization has been called
*/
private final void _writeCloseableValue(JsonGenerator jgen, Object value, SerializationConfig cfg)
throws IOException, JsonGenerationException, JsonMappingException {
Closeable toClose = (Closeable) value;
try {
if (_rootType == null) {
_serializerProvider(cfg).serializeValue(jgen, value);
} else {
_serializerProvider(cfg).serializeValue(jgen, value, _rootType, _rootSerializer);
}
if (_config.isEnabled(SerializationFeature.FLUSH_AFTER_WRITE_VALUE)) {
jgen.flush();
}
Closeable tmpToClose = toClose;
toClose = null;
tmpToClose.close();
} finally {
if (toClose != null) {
try {
toClose.close();
} catch (IOException ioe) {
}
}
}
}
@Override
public void writeIndentation(JsonGenerator jg, int level) throws IOException {
jg.writeRaw(' ');
}
@Override
public void doPost(HttpServletRequest req, HttpServletResponse resp)
throws IOException, ServletException {
String sid = req.getParameter("sid");
String gameId = req.getParameter("game");
String action = req.getParameter("action");
HanabiUser user = s.getUserBySession(sid);
HanabiGame game = s.getGame(gameId);
try {
String message;
if (action.equals("play_card")) {
int slot = Integer.parseInt(req.getParameter("handSlot"));
HanabiGame.PlayCardResult rv = game.playCard(slot);
message = "It was a " + rv.card + "; " + (rv.success ? "Success!" : "Oops!");
} else if (action.equals("discard_card")) {
int slot = Integer.parseInt(req.getParameter("handSlot"));
HanabiGame.Card c = game.discardCard(slot);
message = "It was a " + c;
} else if (action.equals("give_hint")) {
doGiveHint(game, req, resp);
return;
} else {
message = "don't know how to " + action;
}
JsonGenerator out = new JsonFactory().createJsonGenerator(resp.getOutputStream());
out.writeStartObject();
out.writeStringField("message", message);
out.writeEndObject();
out.close();
} catch (HanabiException e) {
resp.setStatus(HttpServletResponse.SC_INTERNAL_SERVER_ERROR);
JsonGenerator out = new JsonFactory().createJsonGenerator(resp.getOutputStream());
out.writeStartObject();
out.writeStringField("status", "error");
out.writeStringField("message", e.toString());
out.writeEndObject();
out.close();
}
}
/**
* Method called after an array value has been completely output, and before another value is to
* be output.
*
* <p>Default handling (without pretty-printing) will output a single comma to separate the two.
* Pretty-printer is to output a comma as well, but can surround that with other (white-space)
* decoration.
*/
@Override
public void writeArrayValueSeparator(JsonGenerator gen) throws IOException {
gen.writeRaw(',');
_arrayIndenter.writeIndentation(gen, _nesting);
}
@Override
public void doGet(HttpServletRequest req, HttpServletResponse resp)
throws IOException, ServletException {
String sid = req.getParameter("sid");
String gameId = req.getParameter("game");
HanabiUser user = s.getUserBySession(sid);
HanabiGame game = s.getGame(gameId);
JsonGenerator out = new JsonFactory().createJsonGenerator(resp.getOutputStream());
out.writeStartObject();
out.writeStringField("id", gameId);
out.writeStringField("nextEvent", Integer.toString(game.events.getNextId()));
out.writeNumberField("drawPile", game.drawPile.size());
out.writeNumberField("hintsLeft", game.hintsLeft);
out.writeNumberField("errorsMade", game.errorsMade);
out.writeNumberField("turnNumber", game.turn);
out.writeStringField("activePlayer", Integer.toString(game.activeSeat));
out.writeFieldName("seats");
out.writeStartArray();
for (int i = 0; i < game.seats.size(); i++) {
HanabiGame.Seat seat = game.seats.get(i);
out.writeStartObject();
out.writeStringField("seat", Integer.toString(i));
out.writeStringField("playerName", seat.user.name);
if (seat.user == user) {
out.writeBooleanField("isYou", true);
}
out.writeFieldName("hand");
out.writeStartArray();
for (HanabiGame.Card c : seat.hand) {
if (seat.user == user) {
out.writeString("unknown");
} else {
out.writeString(c.toString());
}
}
out.writeEndArray();
out.writeEndObject();
}
out.writeEndArray(); // end seats
out.writeFieldName("piles");
out.writeStartObject();
for (int i = 0; i < HanabiGame.SUIT_COUNT; i++) {
HanabiGame.Card c = game.getPileTopCard(i);
if (c != null) {
out.writeStringField(c.getSuitName(), c.toString());
}
}
out.writeEndObject(); // end piles
out.writeFieldName("discards");
out.writeStartArray();
for (HanabiGame.Card c : game.discards) {
out.writeString(c.toString());
}
out.writeEndArray();
out.writeFieldName("hints");
out.writeStartArray();
for (HanabiGame.Hint h : game.hints) {
out.writeStartObject();
out.writeNumberField("turn", h.whenGiven);
out.writeStringField("from", Integer.toString(h.from));
out.writeStringField("to", Integer.toString(h.to));
out.writeStringField("hintType", h.type.name());
out.writeStringField("hint", h.getHintString());
HanabiGame.Seat targetSeat = game.seats.get(h.to);
out.writeFieldName("applies");
out.writeStartArray();
for (int slot = 0; slot < targetSeat.hand.size(); slot++) {
if (targetSeat.whenReceived.get(slot).intValue() > h.whenGiven) {
out.writeString("");
} else if (h.affirms(targetSeat.hand.get(slot))) {
out.writeString("Y");
} else {
out.writeString("N");
}
}
out.writeEndArray();
out.writeEndObject();
}
out.writeEndArray(); // end hints
out.writeEndObject(); // end game
out.close();
}
/**
* Method called after an object entry (field:value) has been completely output, and before
* another value is to be output.
*
* <p>Default handling (without pretty-printing) will output a single comma to separate the two.
* Pretty-printer is to output a comma as well, but can surround that with other (white-space)
* decoration.
*/
@Override
public void writeObjectEntrySeparator(JsonGenerator jg) throws IOException {
jg.writeRaw(',');
_objectIndenter.writeIndentation(jg, _nesting);
}
private void writeMedia(JsonGenerator generator, Media media) throws IOException {
generator.writeStartObject();
generator.writeFieldName(FIELD_PLAYER);
generator.writeString(media.player.name());
generator.writeFieldName(FIELD_URI);
generator.writeString(media.uri);
if (media.title != null) {
generator.writeFieldName(FIELD_TITLE);
generator.writeString(media.title);
}
generator.writeFieldName(FIELD_WIDTH);
generator.writeNumber(media.width);
generator.writeFieldName(FIELD_HEIGHT);
generator.writeNumber(media.height);
generator.writeFieldName(FIELD_FORMAT);
generator.writeString(media.format);
generator.writeFieldName(FIELD_DURATION);
generator.writeNumber(media.duration);
generator.writeFieldName(FIELD_SIZE);
generator.writeNumber(media.size);
if (media.hasBitrate) {
generator.writeFieldName(FIELD_BITRATE);
generator.writeNumber(media.bitrate);
}
if (media.copyright != null) {
generator.writeFieldName(FIELD_COPYRIGHT);
generator.writeString(media.copyright);
}
generator.writeFieldName(FIELD_PERSONS);
generator.writeStartArray();
for (String person : media.persons) {
generator.writeString(person);
}
generator.writeEndArray();
generator.writeEndObject();
}
private void writeImage(JsonGenerator generator, Image image) throws IOException {
generator.writeStartObject();
generator.writeFieldName(FIELD_URI);
generator.writeString(image.uri);
if (image.title != null) {
generator.writeFieldName(FIELD_TITLE);
generator.writeString(image.title);
}
generator.writeFieldName(FIELD_WIDTH);
generator.writeNumber(image.width);
generator.writeFieldName(FIELD_HEIGHT);
generator.writeNumber(image.height);
generator.writeFieldName(FIELD_SIZE);
generator.writeString(image.size.name());
generator.writeEndObject();
}
@Override
public void writeRootValueSeparator(JsonGenerator jg) throws IOException {
if (_rootSeparator != null) {
jg.writeRaw(_rootSeparator);
}
}
