コード例 #1
1
  /** 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();
    }
  }
コード例 #2
0
  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();
  }
コード例 #3
0
 @Override
 public final MediaContent deserialize(byte[] array) throws IOException {
   JsonParser parser = constructParser(array);
   MediaContent mc = readMediaContent(parser);
   parser.close();
   return mc;
 }
コード例 #4
0
ファイル: BeanWithCursor.java プロジェクト: zilong-zZ/jackson
 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;
 }
コード例 #5
0
  private void verifyFromMap(String input) throws Exception {
    JsonParser p = new JsonFactory().createParser(input);
    assertEquals(JsonToken.START_OBJECT, p.nextToken());
    assertEquals(JsonToken.FIELD_NAME, p.nextToken());
    assertEquals(FIELD4, getAndVerifyText(p));
    assertEquals(JsonToken.VALUE_STRING, p.nextToken());
    assertEquals(TEXT2, getAndVerifyText(p));

    assertEquals(JsonToken.FIELD_NAME, p.nextToken());
    assertEquals(FIELD3, getAndVerifyText(p));
    assertEquals(JsonToken.VALUE_NUMBER_INT, p.nextToken());
    assertEquals(-1, p.getIntValue());

    assertEquals(JsonToken.FIELD_NAME, p.nextToken());
    assertEquals(FIELD2, getAndVerifyText(p));
    assertEquals(JsonToken.START_ARRAY, p.nextToken());
    assertEquals(JsonToken.END_ARRAY, p.nextToken());

    assertEquals(JsonToken.FIELD_NAME, p.nextToken());
    assertEquals(FIELD1, getAndVerifyText(p));
    assertEquals(JsonToken.VALUE_NUMBER_FLOAT, p.nextToken());
    assertEquals(DOUBLE_VALUE, p.getDoubleValue(), 0);

    assertEquals(JsonToken.END_OBJECT, p.nextToken());

    assertNull(p.nextToken());
    p.close();
  }
コード例 #6
0
  private void verifyFromArray(String input) throws Exception {
    JsonParser p = new JsonFactory().createParser(new StringReader(input));

    assertEquals(JsonToken.START_ARRAY, p.nextToken());

    assertEquals(JsonToken.VALUE_STRING, p.nextToken());
    assertEquals(TEXT1, getAndVerifyText(p));

    assertEquals(JsonToken.VALUE_NUMBER_INT, p.nextToken());
    assertEquals(3, p.getIntValue());

    assertEquals(JsonToken.START_OBJECT, p.nextToken());
    assertEquals(JsonToken.FIELD_NAME, p.nextToken());
    assertEquals(FIELD1, getAndVerifyText(p));

    assertEquals(JsonToken.VALUE_TRUE, p.nextToken());
    assertEquals(JsonToken.FIELD_NAME, p.nextToken());
    assertEquals(FIELD2, getAndVerifyText(p));

    assertEquals(JsonToken.START_ARRAY, p.nextToken());
    assertEquals(JsonToken.END_ARRAY, p.nextToken());
    assertEquals(JsonToken.END_OBJECT, p.nextToken());

    assertEquals(JsonToken.VALUE_FALSE, p.nextToken());

    assertEquals(JsonToken.END_ARRAY, p.nextToken());
    assertNull(p.nextToken());
    p.close();
  }
コード例 #7
0
 @Override
 public MediaContent[] deserializeItems(InputStream in, int numberOfItems) throws IOException {
   MediaContent[] result = new MediaContent[numberOfItems];
   JsonParser parser = constructParser(in);
   for (int i = 0; i < numberOfItems; ++i) {
     result[i] = readMediaContent(parser);
   }
   parser.close();
   return result;
 }
コード例 #8
0
 protected JsonNode _bindAndCloseAsTree(JsonParser jp)
     throws IOException, JsonParseException, JsonMappingException {
   if (_schema != null) {
     jp.setSchema(_schema);
   }
   try {
     return _bindAsTree(jp);
   } finally {
     try {
       jp.close();
     } catch (IOException ioe) {
     }
   }
 }
コード例 #9
0
  public void testBinary() throws Exception {
    ObjectMapper mapper = new ObjectMapper();
    final int LENGTH = 13045;
    byte[] data = new byte[LENGTH];
    for (int i = 0; i < LENGTH; ++i) {
      data[i] = (byte) i;
    }
    StringWriter sw = new StringWriter();
    mapper.writeValue(sw, BinaryNode.valueOf(data));

    JsonParser p = new JsonFactory().createParser(sw.toString());
    // note: can't determine it's binary from json alone:
    assertToken(JsonToken.VALUE_STRING, p.nextToken());
    assertArrayEquals(data, p.getBinaryValue());
    p.close();
  }
コード例 #10
0
 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);
 }
コード例 #11
0
 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();
 }
コード例 #12
0
 protected Object _bindAndClose(JsonParser jp)
     throws IOException, JsonParseException, JsonMappingException {
   if (_schema != null) {
     jp.setSchema(_schema);
   }
   try {
     Object result;
     JsonToken t = _initForReading(jp);
     if (t == JsonToken.VALUE_NULL) {
       if (_valueToUpdate == null) {
         result = _findRootDeserializer(_config, _valueType).getNullValue();
       } else {
         result = _valueToUpdate;
       }
     } else if (t == JsonToken.END_ARRAY || t == JsonToken.END_OBJECT) {
       result = _valueToUpdate;
     } else {
       DeserializationContext ctxt = _createDeserializationContext(jp, _config);
       JsonDeserializer<Object> deser = _findRootDeserializer(_config, _valueType);
       if (_unwrapRoot) {
         result = _unwrapAndDeserialize(jp, ctxt, _valueType, deser);
       } else {
         if (_valueToUpdate == null) {
           result = deser.deserialize(jp, ctxt);
         } else {
           deser.deserialize(jp, ctxt, _valueToUpdate);
           result = _valueToUpdate;
         }
       }
     }
     return result;
   } finally {
     try {
       jp.close();
     } catch (IOException ioe) {
     }
   }
 }