Examples of org.codehaus.jackson.JsonParser.readValueAs()

org.codehaus.jackson.JsonParser.readValueAs()
Method to deserialize JSON content into a non-container type (it can be an array type, however): typically a bean, array or a wrapper type (like {@link java.lang.Boolean}). Note: method can only be called if the parser has an object codec assigned; this is true for parsers constructed by {@link org.codehaus.jackson.map.MappingJsonFactory} butnot for {@link JsonFactory} (unless its setCodecmethod has been explicitly called).
This method may advance the event stream, for structured types the current token will be the closing end marker (END_ARRAY, END_OBJECT) of the bound structure. For non-structured Json types (and for {@link JsonToken#VALUE_EMBEDDED_OBJECT}) stream is not advanced.
Note: this method should NOT be used if the result type is a container ( {@link java.util.Collection} or {@link java.util.Map}. The reason is that due to type erasure, key and value types can not be introspected when using this method.

            if (responseEntity != null) {
                InputStream content = responseEntity.getContent();
                JsonParser parser;
                try {
                    parser = httpClient.createJsonParser(content);
                    return parser.readValueAs(Map.class);
                } finally {
                    if (content != null) {
                        content.close();
                    }
                }

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            try {
                content = entity.getContent();
                JsonParser parser = httpClient.createJsonParser(content);
                // http://wiki.fasterxml.com/JacksonDataBinding
                return parser.readValueAs(valueType);
            } finally {
                if (content != null) {
                    IOUtils.closeQuietly(content);
                }
            }

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        if (entity != null) {
            InputStream content = entity.getContent();
            if (content != null) {
                try {
                    JsonParser parser = createJsonParser(content);
                    artifactoryResponse = parser.readValueAs(ArtifactoryUploadResponse.class);
                } catch (Exception e) {
                    log.error("Failed while reading the response from: " + httpPut, e);
                }
                finally {
                    content.close();

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    public Object convert(Object source, TypeDescriptor sourceType, TypeDescriptor targetType) {
        try {
            if (SimpleRopRequestContext.messageFormat.get() == MessageFormat.json) {//输入格式为JSON
                JsonParser jsonParser = objectMapper.getJsonFactory().createJsonParser((String) source);
                return jsonParser.readValueAs(targetType.getObjectType());
            } else {
                Unmarshaller unmarshaller = createUnmarshaller(targetType.getObjectType());
                StringReader reader = new StringReader((String) source);
                return unmarshaller.unmarshal(reader);
            }

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        int importedKeys = 0;
        long start = System.nanoTime();


        JsonParser parser = getParser(jsonFile);


        Object[] data = parser.readValueAs(new TypeReference<Object[]>(){});


        keyCountToImport = (keyCountToImport == null) ? data.length : keyCountToImport;
        SSTableWriter writer = new SSTableWriter(ssTablePath, keyCountToImport);


        System.out.printf("Importing %s keys...%n", keyCountToImport);

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        parser.nextToken(); // START_ARRAY
        while (parser.nextToken() != null)
        {
            String key = parser.getCurrentName();
            Map<?, ?> row = parser.readValueAs(new TypeReference<Map<?, ?>>(){});
            DecoratedKey currentKey = partitioner.decorateKey(hexToBytes((String) row.get("key")));


            if (row.containsKey("metadata"))
                parseMeta((Map<?, ?>) row.get("metadata"), columnFamily, null);

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        int importedKeys = 0;
        long start = System.currentTimeMillis();


        JsonParser parser = getParser(jsonFile);


        Object[] data = parser.readValueAs(new TypeReference<Object[]>(){});


        keyCountToImport = (keyCountToImport == null) ? data.length : keyCountToImport;
        SSTableWriter writer = new SSTableWriter(ssTablePath, keyCountToImport);


        System.out.printf("Importing %s keys...%n", keyCountToImport);

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        parser.nextToken(); // START_ARRAY
        while (parser.nextToken() != null)
        {
            String key = parser.getCurrentName();
            Map<?, ?> row = parser.readValueAs(new TypeReference<Map<?, ?>>(){});
            DecoratedKey currentKey = partitioner.decorateKey(hexToBytes((String) row.get("key")));


            if (row.containsKey("metadata"))
                parseMeta((Map<?, ?>) row.get("metadata"), columnFamily);

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        parser.nextToken(); // START_ARRAY
        while (parser.nextToken() != null)
        {
            String key = parser.getCurrentName();
            Map<?, ?> row = parser.readValueAs(new TypeReference<Map<?, ?>>(){});
            DecoratedKey currentKey = partitioner.decorateKey(hexToBytes((String) row.get("key")));


            if (row.containsKey("metadata"))
                parseMeta((Map<?, ?>) row.get("metadata"), columnFamily, null);

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        int importedKeys = 0;
        long start = System.nanoTime();


        JsonParser parser = getParser(jsonFile);


        Object[] data = parser.readValueAs(new TypeReference<Object[]>(){});


        keyCountToImport = (keyCountToImport == null) ? data.length : keyCountToImport;
        SSTableWriter writer = new SSTableWriter(ssTablePath, keyCountToImport);


        System.out.printf("Importing %s keys...%n", keyCountToImport);

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