Examples of org.codehaus.jackson.JsonParser

org.codehaus.jackson.JsonParser
Base class that defines public API for reading JSON content. Instances are created using factory methods of a {@link JsonFactory} instance. @author Tatu Saloranta

            TokenBuffer buffered)
        throws IOException, JsonProcessingException
    {
        for (int i = 0, len = _properties.size(); i < len; ++i) {
            SettableBeanProperty prop = _properties.get(i);
            JsonParser jp = buffered.asParser();
            jp.nextToken();
            prop.deserializeAndSet(jp, ctxt, bean);
        }
        return bean;
    }

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    private int importUnsorted(String jsonFile, ColumnFamily columnFamily, String ssTablePath, IPartitioner<?> partitioner) throws IOException
    {
        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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            IPartitioner<?> partitioner) throws IOException
    {
        int importedKeys = 0; // already imported keys count
        long start = System.currentTimeMillis();


        JsonParser parser = getParser(jsonFile);


        if (keyCountToImport == null)
        {
            keyCountToImport = 0;
            System.out.println("Counting keys to import, please wait... (NOTE: to skip this use -n <num_keys>)");


            parser.nextToken(); // START_ARRAY
            while (parser.nextToken() != null)
            {
                parser.skipChildren();
                if (parser.getCurrentToken() == JsonToken.END_ARRAY)
                    break;


                keyCountToImport++;
            }
        }


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


        parser = getParser(jsonFile); // renewing parser
        SSTableWriter writer = new SSTableWriter(ssTablePath, keyCountToImport);


        int lineNumber = 1;
        DecoratedKey prevStoredKey = null;


        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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    Map<String, Map<String, String>> mapFields = Maps.newHashMap();
    byte[] rawPayload = null;


    try {
      JsonFactory f = new JsonFactory();
      JsonParser jp = f.createJsonParser(bais);


      jp.nextToken(); // will return JsonToken.START_OBJECT (verify?)
      while (jp.nextToken() != JsonToken.END_OBJECT) {
        String fieldname = jp.getCurrentName();
        jp.nextToken(); // move to value, or START_OBJECT/START_ARRAY
        if ("id".equals(fieldname)) {
          // contains an object
          id = jp.getText();
        } else if ("simpleFields".equals(fieldname)) {
          while (jp.nextToken() != JsonToken.END_OBJECT) {
            String key = jp.getCurrentName();
            jp.nextToken(); // move to value
            simpleFields.put(key, jp.getText());
          }
        } else if ("mapFields".equals(fieldname)) {
          // user.setVerified(jp.getCurrentToken() == JsonToken.VALUE_TRUE);
          while (jp.nextToken() != JsonToken.END_OBJECT) {
            String key = jp.getCurrentName();
            mapFields.put(key, new TreeMap<String, String>());
            jp.nextToken(); // move to value


            while (jp.nextToken() != JsonToken.END_OBJECT) {
              String mapKey = jp.getCurrentName();
              jp.nextToken(); // move to value
              mapFields.get(key).put(mapKey, jp.getText());
            }
          }


        } else if ("listFields".equals(fieldname)) {
          // user.setUserImage(jp.getBinaryValue());
          while (jp.nextToken() != JsonToken.END_OBJECT) {
            String key = jp.getCurrentName();
            listFields.put(key, new ArrayList<String>());
            jp.nextToken(); // move to value
            while (jp.nextToken() != JsonToken.END_ARRAY) {
              listFields.get(key).add(jp.getText());
            }


          }


        } else if ("rawPayload".equals(fieldname)) {
          rawPayload = Base64.decodeBase64(jp.getText());
        } else {
          throw new IllegalStateException("Unrecognized field '" + fieldname + "'!");
        }
      }
      jp.close(); // ensure resources get cleaned up timely and properly


      if (id == null) {
        throw new IllegalStateException("ZNRecord id field is required!");
      }
      record = new ZNRecord(id);

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    private int importUnsorted(String jsonFile, ColumnFamily columnFamily, String ssTablePath, IPartitioner<?> partitioner) throws IOException
    {
        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, ActiveRepairService.UNREPAIRED_SSTABLE);


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

View Full Code Here

            IPartitioner<?> partitioner) throws IOException
    {
        int importedKeys = 0; // already imported keys count
        long start = System.nanoTime();


        JsonParser parser = getParser(jsonFile);


        if (keyCountToImport == null)
        {
            keyCountToImport = 0;
            System.out.println("Counting keys to import, please wait... (NOTE: to skip this use -n <num_keys>)");


            parser.nextToken(); // START_ARRAY
            while (parser.nextToken() != null)
            {
                parser.skipChildren();
                if (parser.getCurrentToken() == JsonToken.END_ARRAY)
                    break;


                keyCountToImport++;
            }
        }


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


        parser = getParser(jsonFile); // renewing parser
        SSTableWriter writer = new SSTableWriter(ssTablePath, keyCountToImport, ActiveRepairService.UNREPAIRED_SSTABLE);


        int lineNumber = 1;
        DecoratedKey prevStoredKey = null;


        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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    module.addDeserializer(StatePair.class, new StateDeserializer());


    // register the module with the object-mapper
    mapper.registerModule(module);


    JsonParser parser = 
      mapper.getJsonFactory().createJsonParser((DataInputStream)in);
    StatePool statePool = mapper.readValue(parser, StatePool.class);
    this.setStates(statePool.getStates());
    parser.close();
  }

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   * @return  The freshly built Schema.
   * @throws IOException if there was trouble reading the contents
   * @throws JsonParseException if the contents are invalid
   */
  public static Schema parse(File file) throws IOException {
    JsonParser parser = FACTORY.createJsonParser(file);
    try {
      return Schema.parse(MAPPER.readTree(parser), new Names());
    } catch (JsonParseException e) {
      throw new SchemaParseException(e);
    }

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   * @return  The freshly built Schema.
   * @throws IOException if there was trouble reading the contents
   * @throws JsonParseException if the contents are invalid
   */
  public static Schema parse(InputStream in) throws IOException {
    JsonParser parser = FACTORY.createJsonParser(in);
    try {
      return Schema.parse(MAPPER.readTree(parser), new Names());
    } catch (JsonParseException e) {
      throw new SchemaParseException(e);
    }

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            if (assumptionFile.isFile())
            {
                try
                {
                    JsonFactory f = new JsonFactory();
                    JsonParser p = f.createJsonParser(assumptionFile);
                    JsonToken token = p.nextToken();
                    while (token != JsonToken.END_OBJECT)
                    {
                        if (token == JsonToken.FIELD_NAME)
                        {
                            String keyspace = p.getText();
                            Map<String, Map<String, String>> ksAssumes = assumptions.get(keyspace);
                            if (ksAssumes == null)
                            {
                                ksAssumes = new HashMap<String, Map<String, String>>();
                                assumptions.put(keyspace,  ksAssumes);
                            }
                            token = p.nextToken();
                            while (token != JsonToken.END_ARRAY)
                            {
                                if (token == JsonToken.FIELD_NAME)
                                {
                                    String columnFamily = p.getText();
                                    Map<String, String> cfAssumes = ksAssumes.get(columnFamily);
                                    if (cfAssumes == null)
                                    {
                                        cfAssumes = new HashMap<String, String>();
                                        ksAssumes.put(columnFamily, cfAssumes);
                                    }
                                    
                                    token = p.nextToken();
                                    while (token != JsonToken.END_ARRAY)
                                    {
                                        if (token == JsonToken.FIELD_NAME)
                                        {
                                            String prop = p.getText();
                                            p.nextToken();
                                            String value = p.getText();
                                            cfAssumes.put(prop, value);
                                        }
                                        
                                        token = p.nextToken();
                                    }
                                }
                                token = p.nextToken();
                            }
                        }
                        token = p.nextToken();
                    }
                    sessionState.out.println("Column Family assumptions read from " + assumptionFile);
                }
                catch (Exception e)
                {

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