/*
 * 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 com.amazonaws.services.kinesisanalytics.flink.serialization;

import org.apache.flink.api.common.serialization.DeserializationSchema;
import org.apache.flink.api.common.typeinfo.TypeInformation;
import org.apache.flink.shaded.jackson2.com.fasterxml.jackson.databind.ObjectMapper;

import java.io.IOException;

public class POJODeserializationSchema<T> implements DeserializationSchema<T> {
    private final ObjectMapper mapper = new ObjectMapper();
    private final Class<T> clazz;


    POJODeserializationSchema(Class<T> clazz) {
        this.clazz = clazz;
    }

    @Override
    public T deserialize(byte[] bytes) throws IOException {
        return mapper.readValue(bytes, clazz);
    }

    @Override
    public boolean isEndOfStream(T t) {
        return false;
    }

    @Override
    public TypeInformation<T> getProducedType() {
        return TypeInformation.of(clazz);
    }
}