nifi-extension-bundles/nifi-extension-utils/nifi-record-utils/nifi-json-record-utils/src/main/java/org/apache/nifi/json/JsonParserFactory.java

/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.apache.nifi.json;

import com.fasterxml.jackson.core.JsonFactory;
import com.fasterxml.jackson.core.JsonParser;
import com.fasterxml.jackson.core.StreamReadConstraints;
import com.fasterxml.jackson.databind.ObjectMapper;

import java.io.IOException;
import java.io.InputStream;
import java.util.Objects;

public class JsonParserFactory implements TokenParserFactory {
    @Override
    public JsonParser getJsonParser(final InputStream in, final StreamReadConstraints streamReadConstraints, final boolean allowComments) throws IOException {
        Objects.requireNonNull(in, "Input Stream required");
        Objects.requireNonNull(streamReadConstraints, "Stream Read Constraints required");

        final ObjectMapper objectMapper = new ObjectMapper();
        objectMapper.getFactory().setStreamReadConstraints(streamReadConstraints);
        if (allowComments) {
            objectMapper.enable(JsonParser.Feature.ALLOW_COMMENTS);
        }
        final JsonFactory jsonFactory = objectMapper.getFactory();
        return jsonFactory.createParser(in);
    }
}