Package org.codehaus.jackson.util

Examples of org.codehaus.jackson.util.TokenBuffer

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        if (prop.hasTypePropertyName(propName)) {
            _typeIds[index] = jp.getText();
            jp.skipChildren();
            canDeserialize = (bean != null) && (_tokens[index] != null);
        } else {
            TokenBuffer tokens = new TokenBuffer(jp.getCodec());
            tokens.copyCurrentStructure(jp);
            _tokens[index] = tokens;
            canDeserialize = (bean != null) && (_typeIds[index] != null);
        }
        /* Minor optimization: let's deserialize properties as soon as
         * we have all pertinent information:
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        throws IOException, JsonProcessingException
    {
        /* Ok: time to mix type id, value; and we will actually use "wrapper-array"
         * style to ensure we can handle all kinds of JSON constructs.
         */
        TokenBuffer merged = new TokenBuffer(jp.getCodec());
        merged.writeStartArray();
        merged.writeString(_typeIds[index]);
        JsonParser p2 = _tokens[index].asParser(jp);
        p2.nextToken();
        merged.copyCurrentStructure(p2);
        merged.writeEndArray();
        // needs to point to START_OBJECT (or whatever first token is)
        p2 = merged.asParser(jp);
        p2.nextToken();
        _properties[index].getProperty().deserializeAndSet(p2, ctxt, bean);
    }
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    {
        ObjectMapper mapper = new ObjectMapper();
        mapper.enableDefaultTyping(ObjectMapper.DefaultTyping.NON_FINAL);

        // Ok, first test JSON Object containing buffer:
        TokenBuffer buf = new TokenBuffer(mapper);
        buf.writeStartObject();
        buf.writeNumberField("num", 42);
        buf.writeEndObject();
        String json = mapper.writeValueAsString(new ObjectHolder(buf));
        ObjectHolder holder = mapper.readValue(json, ObjectHolder.class);
        assertNotNull(holder.value);
        assertSame(TokenBuffer.class, holder.value.getClass());
        JsonParser jp = ((TokenBuffer) holder.value).asParser();
        assertToken(JsonToken.START_OBJECT, jp.nextToken());
        assertToken(JsonToken.FIELD_NAME, jp.nextToken());
        assertToken(JsonToken.VALUE_NUMBER_INT, jp.nextToken());
        assertToken(JsonToken.END_OBJECT, jp.nextToken());
        assertNull(jp.nextToken());
        jp.close();

        // then as an array:
        buf = new TokenBuffer(mapper);
        buf.writeStartArray();
        buf.writeBoolean(true);
        buf.writeEndArray();
        json = mapper.writeValueAsString(new ObjectHolder(buf));
        holder = mapper.readValue(json, ObjectHolder.class);
        assertNotNull(holder.value);
        assertSame(TokenBuffer.class, holder.value.getClass());
        jp = ((TokenBuffer) holder.value).asParser();
        assertToken(JsonToken.START_ARRAY, jp.nextToken());
        assertToken(JsonToken.VALUE_TRUE, jp.nextToken());
        assertToken(JsonToken.END_ARRAY, jp.nextToken());
        assertNull(jp.nextToken());
        jp.close();

        // and finally as scalar
        buf = new TokenBuffer(mapper);
        buf.writeNumber(321);
        json = mapper.writeValueAsString(new ObjectHolder(buf));
        holder = mapper.readValue(json, ObjectHolder.class);
        assertNotNull(holder.value);
        assertSame(TokenBuffer.class, holder.value.getClass());
        jp = ((TokenBuffer) holder.value).asParser();
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    }

    public void testBinaryData() throws Exception
    {
        ObjectMapper mapper = new ObjectMapper();
        TokenBuffer buf = new TokenBuffer(mapper);
        buf.writeObject(new byte[3]);
        JsonNode node = mapper.readTree(buf.asParser());
//        assertTrue(node.isBinary());
        byte[] data = node.getBinaryValue();
        assertNotNull(data);
        assertEquals(3, data.length);
    }
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    private final Object MARKER = new Object();
   
    public void testEmbeddedObjectInArray() throws Exception
    {
        ObjectMapper mapper = new ObjectMapper();
        TokenBuffer buf = new TokenBuffer(mapper);
        buf.writeStartArray();
        buf.writeObject(MARKER);
        buf.writeEndArray();
        JsonNode node = mapper.readTree(buf.asParser());
        assertTrue(node.isArray());
        assertEquals(1, node.size());
        JsonNode n = node.get(0);
        assertTrue(n.isPojo());
        assertSame(MARKER, ((POJONode) n).getPojo());
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    }

    public void testEmbeddedObjectInObject() throws Exception
    {
        ObjectMapper mapper = new ObjectMapper();
        TokenBuffer buf = new TokenBuffer(mapper);
        buf.writeStartObject();
        buf.writeFieldName("pojo");
        buf.writeObject(MARKER);
        buf.writeEndObject();
        JsonNode node = mapper.readTree(buf.asParser());
        assertTrue(node.isObject());
        assertEquals(1, node.size());
        JsonNode n = node.get("pojo");
        assertTrue(n.isPojo());
        assertSame(MARKER, ((POJONode) n).getPojo());
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     */
    public void testTokenBufferWithSample() throws Exception
    {
        ObjectMapper m = new ObjectMapper();
        // First, try standard sample doc:
        TokenBuffer result = m.readValue(SAMPLE_DOC_JSON_SPEC, TokenBuffer.class);
        verifyJsonSpecSampleDoc(result.asParser(), true);
    }
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        // and then sequence of other things
        JsonParser jp = createParserUsingReader("[ 32, [ 1 ], \"abc\", { \"a\" : true } ]");
        assertToken(JsonToken.START_ARRAY, jp.nextToken());

        assertToken(JsonToken.VALUE_NUMBER_INT, jp.nextToken());
        TokenBuffer buf = m.readValue(jp, TokenBuffer.class);

        // check manually...
        JsonParser bufParser = buf.asParser();
        assertToken(JsonToken.VALUE_NUMBER_INT, bufParser.nextToken());
        assertEquals(32, bufParser.getIntValue());
        assertNull(bufParser.nextToken());

        // then bind to another
        buf = m.readValue(jp, TokenBuffer.class);
        bufParser = buf.asParser();
        assertToken(JsonToken.START_ARRAY, bufParser.nextToken());
        assertToken(JsonToken.VALUE_NUMBER_INT, bufParser.nextToken());
        assertEquals(1, bufParser.getIntValue());
        assertToken(JsonToken.END_ARRAY, bufParser.nextToken());
        assertNull(bufParser.nextToken());

        // third one, with automatic binding
        buf = m.readValue(jp, TokenBuffer.class);
        String str = m.readValue(buf.asParser(), String.class);
        assertEquals("abc", str);

        // and ditto for last one
        buf = m.readValue(jp, TokenBuffer.class);
        Map<?,?> map = m.readValue(buf.asParser(), Map.class);
        assertEquals(1, map.size());
        assertEquals(Boolean.TRUE, map.get("a"));
       
        assertEquals(JsonToken.END_ARRAY, jp.nextToken());
        assertNull(jp.nextToken());
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            return _deserializeTypedUsingDefaultImpl(jp, ctxt, null);
        } else if (t != JsonToken.FIELD_NAME) {
            return _deserializeTypedUsingDefaultImpl(jp, ctxt, null);
        }
        // Ok, let's try to find the property. But first, need token buffer...
        TokenBuffer tb = null;

        for (; t == JsonToken.FIELD_NAME; t = jp.nextToken()) {
            String name = jp.getCurrentName();
            jp.nextToken(); // to point to the value
            if (_typePropertyName.equals(name)) { // gotcha!
                String typeId = jp.getText();
                JsonDeserializer<Object> deser = _findDeserializer(ctxt, typeId);
                // deserializer should take care of closing END_OBJECT as well
               if (tb != null) {
                    jp = JsonParserSequence.createFlattened(tb.asParser(jp), jp);
                }
                /* Must point to the next value; tb had no current, jp
                 * pointed to VALUE_STRING:
                 */
                jp.nextToken(); // to skip past String value
                // deserializer should take care of closing END_OBJECT as well
                return deser.deserialize(jp, ctxt);
            }
            if (tb == null) {
                tb = new TokenBuffer(null);
            }
            tb.writeFieldName(name);
            tb.copyCurrentStructure(jp);
        }
        return _deserializeTypedUsingDefaultImpl(jp, ctxt, tb);
    }
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    @Override
    public TokenBuffer deserialize(JsonParser jp, DeserializationContext ctxt)
        throws IOException, JsonProcessingException
    {
        TokenBuffer tb = new TokenBuffer(jp.getCodec());
        // quite simple, given that TokenBuffer is a JsonGenerator:
        tb.copyCurrentStructure(jp);
        return tb;
    }
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Related Classes of org.codehaus.jackson.util.TokenBuffer

  • eu.mosaic_cloud.tools.json.tools.DefaultJsonMapper
  • org.codehaus.jackson.impl.JsonWriteContext
  • org.codehaus.jackson.map.deser.BeanDeserializer
  • org.codehaus.jackson.map.deser.impl.ExternalTypeHandler
  • org.codehaus.jackson.map.deser.std.TokenBufferDeserializer
  • org.codehaus.jackson.map.deser.StdDeserializer$TokenBufferDeserializer
  • org.codehaus.jackson.map.deser.TestJacksonTypes
  • org.codehaus.jackson.map.jsontype.impl.AsPropertyTypeDeserializer
  • org.codehaus.jackson.map.jsontype.TestDefaultForObject
  • org.codehaus.jackson.map.ObjectMapper
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