List of usage examples for org.springframework.batch.item.file FlatFileItemWriter FlatFileItemWriter
public FlatFileItemWriter()
From source file:de.codecentric.batch.jobs.FlatFileJobConfiguration.java
@Bean public ItemWriter<String> writer() { FlatFileItemWriter<String> writer = new FlatFileItemWriter<String>(); writer.setResource(new FileSystemResource(new File("target/out-javaconfig.txt"))); writer.setLineAggregator(new PassThroughLineAggregator<String>()); return writer; }
From source file:org.jboss.examples.spring.batch.BatchConfiguration.java
@Bean public FlatFileItemWriter<AggregateItem<Trade>> writer() { FlatFileItemWriter rc = new FlatFileItemWriter(); rc.setLineAggregator(new PassThroughLineAggregator()); rc.setResource(new FileSystemResource("./target/multistep.txt")); return rc;/*ww w . j a va 2 s.c o m*/ }
From source file:org.cbio.portal.pipelines.foundation.MetaDataTasklet.java
/** * Create and Write meta data file.//from w w w . j ava 2 s . co m * @param executionContext * @throws Exception */ private void writeMetaStagingFile(ExecutionContext executionContext, String metaFilename, List<String> metaData) throws Exception { FlatFileItemWriter<String> flatFileItemWriter = new FlatFileItemWriter<>(); PassThroughLineAggregator aggr = new PassThroughLineAggregator(); try { flatFileItemWriter.setLineAggregator(aggr); flatFileItemWriter.setResource(new FileSystemResource(metaFilename)); flatFileItemWriter.open(executionContext); flatFileItemWriter.write(metaData); flatFileItemWriter.close(); } catch (Exception ex) { LOG.error("Error writing meta data file: " + metaFilename); ex.printStackTrace(); } }
From source file:org.springframework.batch.admin.sample.LeadRandomizer.java
@Test public void testLeads() throws Exception { FlatFileItemReader<FieldSet> reader = new FlatFileItemReader<FieldSet>(); reader.setResource(new ClassPathResource("/data/test.txt")); DefaultLineMapper<FieldSet> lineMapper = new DefaultLineMapper<FieldSet>(); lineMapper.setLineTokenizer(new DelimitedLineTokenizer()); lineMapper.setFieldSetMapper(new PassThroughFieldSetMapper()); reader.setLinesToSkip(1);//from ww w .j a va2 s.c o m final List<String> headers = new ArrayList<String>(); reader.setSkippedLinesCallback(new LineCallbackHandler() { public void handleLine(String line) { headers.add(line); } }); reader.setLineMapper(lineMapper); reader.open(new ExecutionContext()); List<FieldSet> list = new ArrayList<FieldSet>(); FieldSet item = reader.read(); while (item != null) { list.add(item); item = reader.read(); } assertEquals(7, list.size()); FlatFileItemWriter<FieldSet> writer = new FlatFileItemWriter<FieldSet>(); FileSystemResource resource = new FileSystemResource("target/output/output.txt"); FileUtils.deleteQuietly(resource.getFile()); writer.setResource(resource); writer.setHeaderCallback(new FlatFileHeaderCallback() { public void writeHeader(Writer writer) throws IOException { for (String header : headers) { writer.write(header); } } }); writer.setLineAggregator(new DelimitedLineAggregator<FieldSet>()); writer.open(new ExecutionContext()); String[] names = getFields(list, 1); String[] country = getFields(list, 2); String[] products = getFields(list, 3); double[] amounts = getMinMax(list, 4); NumberFormat formatter = new DecimalFormat("#.##"); int count = 20; for (int i = 0; i < 100; i++) { List<FieldSet> items = new ArrayList<FieldSet>(); for (FieldSet fieldSet : list) { String[] values = fieldSet.getValues(); values[0] = "" + (count++); values[1] = choose(names); values[2] = choose(country); values[3] = choose(products); values[4] = formatter.format(random(amounts)); items.add(new DefaultFieldSet(values)); } writer.write(items); } writer.close(); }