PipesRequestSerializer.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.tika.pipes.core.serialization;

import java.io.IOException;

import com.fasterxml.jackson.core.JsonGenerator;
import com.fasterxml.jackson.databind.JsonSerializer;
import com.fasterxml.jackson.databind.SerializerProvider;

/**
 * Payload as a raw top-level binary field beside the tuple: on the Smile IPC this avoids both
 * base64 (+33%) and 7-bit (+14%) inflation, and keeps content out of the tuple's serialized form
 * entirely.
 */
class PipesRequestSerializer extends JsonSerializer<PipesRequest> {

    @Override
    public void serialize(PipesRequest r, JsonGenerator gen, SerializerProvider provider)
            throws IOException {
        gen.writeStartObject();
        gen.writeObjectField(PipesRequest.TUPLE, r.getTuple());
        if (r.getInlineBytes() != null) {
            gen.writeBinaryField(PipesRequest.INLINE_BYTES, r.getInlineBytes());
        }
        gen.writeEndObject();
    }
}