RestJsonWriter.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 gobblin.writer.http;

import org.apache.http.HttpHeaders;
import org.apache.http.client.methods.HttpUriRequest;
import org.apache.http.client.methods.RequestBuilder;
import org.apache.http.entity.ContentType;
import org.apache.http.entity.StringEntity;

import com.google.common.base.Optional;
import com.google.gson.JsonObject;

import gobblin.converter.http.RestEntry;

/**
 * Writes via Restful API that accepts JSON as a body
 */
public class RestJsonWriter extends HttpWriter<RestEntry<JsonObject>> {

  public RestJsonWriter(AbstractHttpWriterBuilder builder) {
    super(builder);
  }

  @Override
  public Optional<HttpUriRequest> onNewRecord(RestEntry<JsonObject> record) {
    HttpUriRequest uriRequest = RequestBuilder.post()
        .addHeader(HttpHeaders.CONTENT_TYPE, ContentType.APPLICATION_JSON.getMimeType())
        .setUri(combineUrl(getCurServerHost(), record.getResourcePath()))
        .setEntity(new StringEntity(record.getRestEntryVal().toString(), ContentType.APPLICATION_JSON))
        .build();
    return Optional.of(uriRequest);
  }
}