/** 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();
}
}
private TwitterEntry read(JsonParser jp) throws IOException {
// First: verify that we got "Json Object":
if (jp.nextToken() != JsonToken.START_OBJECT) {
throw new IOException("Expected data to start with an Object");
}
TwitterEntry result = new TwitterEntry();
// Iterate over object fields:
while (jp.nextToken() != JsonToken.END_OBJECT) {
String fieldName = jp.getCurrentName();
// Let's move to value
jp.nextToken();
if (fieldName.equals("id")) {
result.setId(jp.getLongValue());
} else if (fieldName.equals("text")) {
result.setText(jp.getText());
} else if (fieldName.equals("fromUserId")) {
result.setFromUserId(jp.getIntValue());
} else if (fieldName.equals("toUserId")) {
result.setToUserId(jp.getIntValue());
} else if (fieldName.equals("languageCode")) {
result.setLanguageCode(jp.getText());
} else {
// ignore, or signal error
throw new IOException("Unrecognized field '" + fieldName + "'");
}
}
jp.close(); // important to close both parser and underlying File reader
return result;
}
protected final double _testRawDeser(int reps, byte[] json, ObjectReader reader)
throws IOException {
long start = System.nanoTime();
final JsonFactory f = reader.getFactory();
while (--reps >= 0) {
JsonParser p = f.createParser(new ByteArrayInputStream(json));
JsonToken t;
while ((t = p.nextToken()) != null) {
if (t == JsonToken.VALUE_STRING) {
p.getText();
} else if (t.isNumeric()) {
p.getNumberValue();
}
;
}
p.close();
}
hash = f.hashCode();
return _msecsFromNanos(System.nanoTime() - start);
}
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();
}
private Image readImage(JsonParser parser) throws IOException {
boolean haveWidth = false;
boolean haveHeight = false;
Image image = new Image();
if (parser.nextFieldName(FIELD_URI)) {
image.uri = parser.nextTextValue();
if (parser.nextFieldName(FIELD_TITLE)) {
image.title = parser.nextTextValue();
if (parser.nextFieldName(FIELD_WIDTH)) {
image.width = parser.nextIntValue(-1);
haveWidth = true;
if (parser.nextFieldName(FIELD_HEIGHT)) {
image.height = parser.nextIntValue(-1);
haveHeight = true;
if (parser.nextFieldName(FIELD_SIZE)) {
image.size = Image.Size.valueOf(parser.nextTextValue());
parser.nextToken();
verifyCurrent(parser, JsonToken.END_OBJECT);
return image;
}
}
}
}
}
for (; parser.getCurrentToken() == JsonToken.FIELD_NAME; parser.nextToken()) {
String field = parser.getCurrentName();
// read value token (or START_ARRAY)
parser.nextToken();
Integer I = fullFieldToIndex.get(field);
if (I != null) {
switch (I) {
case FIELD_IX_URI:
image.uri = parser.getText();
continue;
case FIELD_IX_TITLE:
image.title = parser.getText();
continue;
case FIELD_IX_WIDTH:
image.width = parser.getIntValue();
haveWidth = true;
continue;
case FIELD_IX_HEIGHT:
image.height = parser.getIntValue();
haveHeight = true;
continue;
case FIELD_IX_SIZE:
image.size = Image.Size.valueOf(parser.getText());
continue;
}
}
throw new IllegalStateException("Unexpected field '" + field + "'");
}
if (image.uri == null) throw new IllegalStateException("Missing field: " + FIELD_URI);
if (!haveWidth) throw new IllegalStateException("Missing field: " + FIELD_WIDTH);
if (!haveHeight) throw new IllegalStateException("Missing field: " + FIELD_HEIGHT);
if (image.size == null) throw new IllegalStateException("Missing field: " + FIELD_SIZE);
verifyCurrent(parser, JsonToken.END_OBJECT);
return image;
}
public final void copyCurrentEvent(JsonParser jp) throws IOException, JsonProcessingException {
switch (jp.getCurrentToken()) {
case START_OBJECT:
writeStartObject();
break;
case END_OBJECT:
writeEndObject();
break;
case START_ARRAY:
writeStartArray();
break;
case END_ARRAY:
writeEndArray();
break;
case FIELD_NAME:
writeFieldName(jp.getCurrentName());
break;
case VALUE_STRING:
if (jp.hasTextCharacters()) {
writeString(jp.getTextCharacters(), jp.getTextOffset(), jp.getTextLength());
} else {
writeString(jp.getText());
}
break;
case VALUE_NUMBER_INT:
switch (jp.getNumberType()) {
case INT:
writeNumber(jp.getIntValue());
break;
case BIG_INTEGER:
writeNumber(jp.getBigIntegerValue());
break;
default:
writeNumber(jp.getLongValue());
}
break;
case VALUE_NUMBER_FLOAT:
switch (jp.getNumberType()) {
case BIG_DECIMAL:
writeNumber(jp.getDecimalValue());
break;
case FLOAT:
writeNumber(jp.getFloatValue());
break;
default:
writeNumber(jp.getDoubleValue());
}
break;
case VALUE_TRUE:
writeBoolean(true);
break;
case VALUE_FALSE:
writeBoolean(false);
break;
case VALUE_NULL:
writeNull();
break;
case VALUE_EMBEDDED_OBJECT:
writeObject(jp.getEmbeddedObject());
break;
default:
_cantHappen();
}
}