uk.ac.starlink.table.formats

Class IpacTableWriter

java.lang.Object

uk.ac.starlink.table.formats.DocumentedStreamStarTableWriter

uk.ac.starlink.table.formats.AbstractTextTableWriter

uk.ac.starlink.table.formats.IpacTableWriter

All Implemented Interfaces:

Documented, DocumentedIOHandler, StarTableWriter

public class IpacTableWriter
extends AbstractTextTableWriter

A StarTableWriter which writes to the IPAC text format. The data format is defined at http://irsa.ipac.caltech.edu/applications/DDGEN/Doc/ipac_tbl.html.

Since:

20 Sep 2012

Author:

Mark Taylor

Field Summary

Fields

Modifier and Type	Field and Description
static String	NULL String representation for null values.

Constructor Summary

Constructors

Constructor and Description
IpacTableWriter() Constructor.

Method Summary

Modifier and Type	Method and Description
boolean	docIncludesExample() Indicates whether the serialization of some (short) example table should be added to the user documentation for this handler.
String	formatValue(Object val, ValueInfo info, int width) Formats a data value for output.
String	getFormatName() Returns "IPAC".
String	getMimeType() Returns "text/plain".
int	getMinNameWidth(ColumnInfo info) Returns the minimum width required to output the actual characters of the name for a given column.
String	getXmlDescription() Returns user-directed documentation in XML format.
void	printColumnHeads(OutputStream out, int[] colwidths, ColumnInfo[] cinfos) Outputs headings for the table columns.
protected void	printLine(OutputStream out, int[] colwidths, String[] data) Outputs a line of table data.
protected void	printParam(OutputStream out, String name, String value, Class<?> clazz) Outputs a parameter and its value.
protected void	printSeparator(OutputStream out, int[] colwidths) Outputs a decorative separator line, of the sort you might find between the column headings and the table data.

Methods inherited from class uk.ac.starlink.table.formats.AbstractTextTableWriter

getBytes, getMaximumParameterLength, getMaxWidth, getSampledRows, getWriteParameters, setMaximumParameterLength, setMaxWidth, setSampledRows, setWriteParameters, writeStarTable

Methods inherited from class uk.ac.starlink.table.formats.DocumentedStreamStarTableWriter

getExtensions, looksLikeFile, writeStarTable

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface uk.ac.starlink.table.formats.DocumentedIOHandler

matchesExtension, readText, toLink

Field Detail

NULL

public static String NULL

String representation for null values.

Constructor Detail

IpacTableWriter

public IpacTableWriter()

Constructor.

Method Detail

getFormatName

public String getFormatName()

Returns "IPAC".

Specified by:

getFormatName in interface StarTableWriter

Overrides:

getFormatName in class AbstractTextTableWriter

Returns:

"text"

docIncludesExample

public boolean docIncludesExample()

Description copied from interface: DocumentedIOHandler

Indicates whether the serialization of some (short) example table should be added to the user documentation for this handler. Binary formats, or instances for which the Documented.getXmlDescription() method already includes some example output, should return false.

Returns:

true if the user documentation would benefit from the addition of an example serialization

getXmlDescription

public String getXmlDescription()

Description copied from interface: Documented

Returns user-directed documentation in XML format.

The output should be a sequence of one or more <P> elements, using XHTML-like XML. Since rendering may be done in a number of contexts however, use of the full range of XHTML elements is discouraged. Where possible, the content should stick to simple markup such as the elements P, A, UL, OL, LI, DL, DT, DD EM, STRONG, I, B, CODE, TT, PRE.

Returns:

XML description of this object

getMimeType

public String getMimeType()

Returns "text/plain".

Specified by:

getMimeType in interface StarTableWriter

Overrides:

getMimeType in class AbstractTextTableWriter

Returns:

MIME content type

getMinNameWidth

public int getMinNameWidth(ColumnInfo info)

Description copied from class: AbstractTextTableWriter

Returns the minimum width required to output the actual characters of the name for a given column. Padding applied subsequently by this object's AbstractTextTableWriter.printColumnHeads(java.io.OutputStream, int[], uk.ac.starlink.table.ColumnInfo[]) method does not need to be included.

Overrides:

getMinNameWidth in class AbstractTextTableWriter

Parameters:

info - column metadata

Returns:

minimum number of characters required for column title

formatValue

public String formatValue(Object val,
                          ValueInfo info,
                          int width)

Description copied from class: AbstractTextTableWriter

Formats a data value for output.

Specified by:

formatValue in class AbstractTextTableWriter

Parameters:

val - the value

info - the metadata object describing val's type

width - maximum preferred width into which the value should be formatted

Returns:

formatted string meaning value, preferably no longer than width characters

printColumnHeads

public void printColumnHeads(OutputStream out,
                             int[] colwidths,
                             ColumnInfo[] cinfos)
                      throws IOException

Description copied from class: AbstractTextTableWriter

Outputs headings for the table columns.

Specified by:

printColumnHeads in class AbstractTextTableWriter

Parameters:

out - stream to write into

colwidths - column widths in characters

cinfos - array of column headings

Throws:

IOException

printLine

protected void printLine(OutputStream out,
                         int[] colwidths,
                         String[] data)
                  throws IOException

Description copied from class: AbstractTextTableWriter

Outputs a line of table data.

Specified by:

printLine in class AbstractTextTableWriter

Parameters:

out - stream to write into

colwidths - column widths in characters

data - array of strings to be output, one per column

Throws:

IOException

printSeparator

protected void printSeparator(OutputStream out,
                              int[] colwidths)

Description copied from class: AbstractTextTableWriter

Outputs a decorative separator line, of the sort you might find between the column headings and the table data.

Specified by:

printSeparator in class AbstractTextTableWriter

Parameters:

out - stream to write into

colwidths - column widths in characters

printParam

protected void printParam(OutputStream out,
                          String name,
                          String value,
                          Class<?> clazz)
                   throws IOException

Description copied from class: AbstractTextTableWriter

Outputs a parameter and its value.

Specified by:

printParam in class AbstractTextTableWriter

Parameters:

out - stream to write into

name - parameter name

value - formatted parameter value

clazz - type of value

Throws:

IOException