Example usage for org.apache.commons.csv CSVPrinter print

Introduction

In this page you can find the example usage for org.apache.commons.csv CSVPrinter print.

Prototype

public void print(final Object value) throws IOException 

Source Link

Document

Prints the string as the next value on the line.

Usage

From source file:org.apache.beam.sdk.extensions.sql.impl.schema.text.BeamTextCSVTableTest.java

/**
 * Helper that writes the given lines (adding a newline in between) to a stream, then closes the
 * stream.//  w ww  . j  a  v a 2  s  .  c  o m
 */
private static void writeToStreamAndClose(List<Object[]> rows, OutputStream outputStream) {
    try (PrintStream writer = new PrintStream(outputStream)) {
        CSVPrinter printer = CSVFormat.DEFAULT.print(writer);
        for (Object[] row : rows) {
            for (Object field : row) {
                printer.print(field);
            }
            printer.println();
        }
    } catch (IOException e) {
        e.printStackTrace();
    }
}

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From source file:org.apache.storm.sql.runtime.serde.csv.CsvSerializer.java

@Override
public ByteBuffer write(List<Object> data, ByteBuffer buffer) {
    try {/*  www .j  av  a2s  .c o m*/
        StringWriter writer = new StringWriter();
        CSVPrinter printer = new CSVPrinter(writer, CSVFormat.RFC4180);
        for (Object o : data) {
            printer.print(o);
        }
        //since using StringWriter, we do not need to close it.
        return ByteBuffer.wrap(writer.getBuffer().toString().getBytes(StandardCharsets.UTF_8));
    } catch (IOException e) {
        throw new RuntimeException(e);
    }
}

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From source file:org.cast.cwm.admin.CSVDownload.java

/**
 * creates a new resource response based on the request attributes
 *
 * @param attributes current request attributes from client
 * @return resource response for answering request
 *//*from  w  w  w  .  ja v a2s  .  c om*/
@Override
protected ResourceResponse newResourceResponse(Attributes attributes) {
    ResourceResponse rr = new ResourceResponse();
    rr.disableCaching();
    rr.setFileName("log.csv");
    rr.setContentDisposition(ContentDisposition.ATTACHMENT);
    rr.setContentType("text/csv");

    if (rr.dataNeedsToBeWritten(attributes)) {
        rr.setWriteCallback(new WriteCallback() {
            @Override
            public void writeData(Attributes attributes) {
                Response response = attributes.getResponse();

                try {
                    CSVPrinter writer = new CSVPrinter(
                            new OutputStreamWriter(response.getOutputStream(), "UTF-8"), CSVFormat.EXCEL);

                    // Write header row
                    for (IDataColumn<E> col : columns) {
                        writer.print(col.getHeaderString());
                    }
                    writer.println();

                    // Write documentation row, if requested
                    if (includeDocumentationRow) {
                        for (IDataColumn<E> col : columns) {
                            if (col instanceof IDocumentedColumn
                                    && ((IDocumentedColumn) col).getDocumentationModel() != null) {
                                writer.print(((IDocumentedColumn) col).getDocumentationModel().getObject());
                            } else {
                                writer.print("");
                            }
                        }
                        writer.println();
                    }

                    // Write Data
                    Iterator<? extends E> it = iteratorProvider.getIterator();
                    while (it.hasNext()) {
                        E e = it.next();
                        for (IDataColumn<E> col : columns) {
                            String columnValue = col.getItemString(new Model<E>(e));
                            if (columnValue == null) {
                                log.warn("Got a null value for {} of item {}", col.getHeaderString(), e);
                                columnValue = "null";
                            }
                            // Clean up text -- CSV file cannot have newlines in it
                            writer.print(columnValue.replaceAll("[\r\n]", " "));
                        }
                        writer.println();
                    }
                    writer.close();

                } catch (UnsupportedEncodingException e) {
                    throw new StringValueConversionException("UTF-8 translation not supported?!", e);
                } catch (IOException e) {
                    throw new WicketRuntimeException("Couldn't write to resource", e);
                }
            }
        });
    }

    return rr;
}

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From source file:org.commonvox.hbase_column_manager.ColumnQualifierReport.java

void printReport(CSVPrinter csvPrinter, Set<SchemaEntity> schemaEntities) throws IOException {
    for (SchemaEntity entity : schemaEntities) {
        switch (entity.getSchemaEntityType()) {
        case NAMESPACE:
            namespaceReportString = entity.getNameAsString();
            tableReportString = "";
            colFamilyReportString = "";
            colQualifierReportString = "";
            colMaxLengthReportString = "";
            printReport(csvPrinter, entity.getChildren());
            break;
        case TABLE:
            tableReportString = entity.getNameAsString();
            printReport(csvPrinter, entity.getChildren());
            break;
        case COLUMN_FAMILY:
            colFamilyReportString = entity.getNameAsString();
            if (this.sourceColFamily != null
                    && !colFamilyReportString.equals(Bytes.toString(sourceColFamily))) {
                continue;
            }/*from   w  w w .  j a va 2 s  .  c  om*/
            printReport(csvPrinter, entity.getChildren());
            break;
        case COLUMN_AUDITOR:
            colQualifierReportString = entity.getNameAsString();
            colMaxLengthReportString = entity.getValue(ColumnAuditor.MAX_VALUE_LENGTH_KEY);
            csvPrinter.print(namespaceReportString);
            csvPrinter.print(tableReportString);
            csvPrinter.print(colFamilyReportString);
            csvPrinter.print(colQualifierReportString);
            csvPrinter.print(colMaxLengthReportString);
            csvPrinter.println();
            recordsWrittenToReport = true;
        }
    }
}

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From source file:org.openmrs.projectbuendia.servlet.DataExportServlet.java

private void writeHeaders(CSVPrinter printer, FixedSortedConceptIndexer indexer) throws IOException {
    for (String fixedHeader : FIXED_HEADERS) {
        printer.print(fixedHeader);
    }/*from  w ww.j  a  v a 2  s . c om*/
    for (int i = 0; i < indexer.size(); i++) {
        // For each observation there are three columns: one for the English
        // name, one for the OpenMRS ID, and one for the UUID of the concept.
        assert COLUMNS_PER_OBS == 3;
        Concept concept = indexer.getConcept(i);
        printer.print(NAMER.getClientName(concept));
        printer.print(concept.getId());
        printer.print(concept.getUuid());
    }
    printer.println();
}

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From source file:org.opennms.netmgt.integrations.R.RScriptExecutor.java

/**
 * Convert the table to a CSV string.//from   w w w.j  a v a2 s  . com
 */
protected static StringBuilder toCsv(final RowSortedTable<Long, String, Double> table) throws IOException {
    final String columnNames[] = table.columnKeySet().toArray(new String[] {});

    final StringBuilder sb = new StringBuilder();
    final CSVPrinter printer = CSVFormat.RFC4180.withHeader(columnNames).print(sb);

    for (long rowIndex : table.rowKeySet()) {
        for (String columnName : columnNames) {
            Double value = table.get(rowIndex, columnName);
            if (value == null) {
                value = Double.NaN;
            }
            printer.print(value);
        }
        printer.println();
    }

    return sb;
}

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From source file:org.thegalactic.context.io.ContextSerializerCsv.java

/**
 * Write a context to a csv file./*w  ww.  j  a va  2  s  .  co  m*/
 *
 * The following format is respected:
 *
 * The first line contains the attribute names, the other lines contains the
 * observations identifier followed by boolean values
 *
 * ~~~
 * "",a,b,c,d,e
 * 1,1,0,1,0,0
 * 2,1,1,0,0,0
 * 3,0,1,0,1,1
 * 4,0,0,1,0,1
 * ~~~
 *
 * @param context a context to write
 * @param file    a file
 *
 * @throws IOException When an IOException occurs
 */
public void write(Context context, BufferedWriter file) throws IOException {
    CSVPrinter printer = new CSVPrinter(file, CSVFormat.RFC4180);

    // Get the observations and the attributes
    TreeSet<Comparable> observations = context.getObservations();
    TreeSet<Comparable> attributes = context.getAttributes();

    // Prepare the attribute line
    printer.print("");

    for (Comparable attribute : attributes) {
        // Write each attribute
        printer.print(attribute);
    }

    printer.println();

    for (Comparable observation : observations) {
        // Write the observation
        printer.print(observation);

        // Write the extent/intents
        for (Comparable attribute : attributes) {
            if (context.getIntent(observation).contains(attribute)) {
                printer.print(1);
            } else {
                printer.print(0);
            }
        }

        printer.println();
    }

    printer.close();
}

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