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 (columnFamily.getColumnFamilyType() == ColumnFamilyType.Super)
                    {
                        throw new RuntimeException("Can't write Standard columns to the Super Column Family.");
                    }


                    List<?> columns = parser.readValueAs(new TypeReference<List<?>>() {});
                    addToStandardCF(columns, columnFamily);
                }
                else if (tokenName.equals("START_OBJECT"))
                {
                    if (columnFamily.getColumnFamilyType() == ColumnFamilyType.Standard)

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                    if (columnFamily.getColumnFamilyType() == ColumnFamilyType.Standard)
                    {
                        throw new RuntimeException("Can't write Super columns to the Standard Column Family.");
                    }


                    Map<?, ?> columns = parser.readValueAs(new TypeReference<Map<?, ?>>() {});
                    addToSuperCF(columns, columnFamily);
                }
                else
                {
                    throw new UnsupportedOperationException("Only Array or Hash allowed as row content.");

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                // Case with more realms in stream
                parser.nextToken();


                List<RealmRepresentation> realmReps = new ArrayList<RealmRepresentation>();
                while (parser.getCurrentToken() == JsonToken.START_OBJECT) {
                    RealmRepresentation realmRep = parser.readValueAs(RealmRepresentation.class);
                    parser.nextToken();


                    // Ensure that master realm is imported first
                    if (Config.getAdminRealm().equals(realmRep.getRealm())) {
                        realmReps.add(0, realmRep);

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                for (RealmRepresentation realmRep : realmReps) {
                    importRealm(session, realmRep, strategy);
                }
            } else if (parser.getCurrentToken() == JsonToken.START_OBJECT) {
                // Case with single realm in stream
                RealmRepresentation realmRep = parser.readValueAs(RealmRepresentation.class);
                importRealm(session, realmRep, strategy);
            }
        } finally {
            parser.close();
        }

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                    }


                    // TODO: support for more transactions per single users file (if needed)
                    List<UserRepresentation> userReps = new ArrayList<UserRepresentation>();
                    while (parser.getCurrentToken() == JsonToken.START_OBJECT) {
                        UserRepresentation user = parser.readValueAs(UserRepresentation.class);
                        userReps.add(user);
                        parser.nextToken();
                    }


                    importUsers(session, model, realmName, userReps);

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    @Override
  public Map<String, Object> mapLine(String line, int lineNumber) throws Exception {
    Map<String, Object> result;
    JsonParser parser = factory.createJsonParser(line);
    @SuppressWarnings("unchecked")
    Map<String, Object> token = parser.readValueAs(Map.class);
    result = token;
    return result;
  }


}

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  public static <T> T fromJson(byte[] in, Class<T> clazz) {
     MappingJsonFactory jsonFactory = new MappingJsonFactory(); // or, for data binding, org.codehaus.jackson.mapper.MappingJsonFactory 
     try {
      JsonParser jp = jsonFactory.createJsonParser(in);
      return jp.readValueAs(clazz);
    } catch (Exception e) {
      throw new RuntimeException(e);
    }
  }

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  public static <T> T fromJson(InputStream in, Class<T> clazz) {
     MappingJsonFactory jsonFactory = new MappingJsonFactory(); // or, for data binding, org.codehaus.jackson.mapper.MappingJsonFactory 
     try {
      JsonParser jp = jsonFactory.createJsonParser(in);
      return jp.readValueAs(clazz);
    } catch (Exception e) {
      throw new RuntimeException(e);
    }
    
  }

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    @Override
    public T unmarshall(Class<T> clazz, String obj) {
        try {
            JsonFactory jsonFactory = new MappingJsonFactory();
            JsonParser jsonParser = jsonFactory.createJsonParser(new StringReader(obj));
            return jsonParser.readValueAs(clazz);
        } catch ( Exception e ) {
            throw new RuntimeException(e);
        }
    }

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            .type("application/json")
            .post(inputBean);
        assertEquals(Response.Status.OK.getStatusCode(), r.getStatus());
        MappingJsonFactory factory = new MappingJsonFactory();
        JsonParser parser = factory.createJsonParser((InputStream)r.getEntity());
        JsonBean output = parser.readValueAs(JsonBean.class);
        assertEquals("Maple", output.getVal2());
    }
}

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