Java tutorial
/* * Rad-tech-datatypes. * Copyright 2014 Metamarkets Group Inc. * * Licensed 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.metamx.datatypes; import com.fasterxml.jackson.databind.DeserializationFeature; import com.fasterxml.jackson.databind.ObjectMapper; import com.metamx.datatypes.mmx.MmxAuctionSummary; import org.joda.time.DateTime; import java.io.ByteArrayOutputStream; import java.io.OutputStream; import java.util.Arrays; import java.util.List; public class ExampleWriteNewLineJson { public static void main(String[] args) throws Exception { final MmxAuctionSummary sampleAuction1 = MmxAuctionSummary.builder() .timestamp(new DateTime("2014-01-01T00:00:00.000Z")).auctionType(2).build(); final MmxAuctionSummary sampleAuction2 = MmxAuctionSummary.builder() .timestamp(new DateTime("2014-01-01T01:00:00.000Z")).auctionType(1).build(); List<MmxAuctionSummary> auctionList = Arrays.asList(sampleAuction1, sampleAuction2); final String separator = "\n"; final ObjectMapper objectMapper = new ObjectMapper(); objectMapper.disable(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES); final OutputStream outStream = new ByteArrayOutputStream(); for (MmxAuctionSummary auction : auctionList) { outStream.write(objectMapper.writeValueAsBytes(auction)); outStream.write(separator.getBytes()); } System.out.println(outStream.toString()); } }