Package org.openscience.cdk.io

Class FormatFactory

java.lang.Object

org.openscience.cdk.io.FormatFactory

public class FormatFactory
extends Object

A factory for recognizing chemical file formats. Formats of GZiped files can be detected too. A typical example is:

   StringReader stringReader = new StringReader("<molecule/>");
   IChemFormat format = new FormatFactory().guessFormat(stringReader);
 

Author:

Egon Willighagen <egonw@sci.kun.nl>, Bradley A. Smith <bradley@baysmith.com>

Source code:

main

Belongs to CDK module:

ioformats

Constructor Summary

Constructors

Constructor	Description
FormatFactory()	Constructs a ReaderFactory which tries to detect the format in the first 65536 chars.
FormatFactory(int headerLength)	Constructs a ReaderFactory which tries to detect the format in the first given number of chars.

Method Summary

Modifier and Type	Method	Description
List<IChemFormatMatcher>	getFormats()	Returns the list of recognizable formats.
IChemFormat	guessFormat(InputStream input)
IChemFormat	guessFormat(Reader input)	Creates a String of the Class name of the IChemObject reader for this file format.
void	registerFormat(IChemFormatMatcher format)	Registers a format for detection.

Methods inherited from class java.lang.Object

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

Constructor Detail

FormatFactory

public FormatFactory()

Constructs a ReaderFactory which tries to detect the format in the first 65536 chars.

FormatFactory

public FormatFactory(int headerLength)

Constructs a ReaderFactory which tries to detect the format in the first given number of chars.

Parameters:

headerLength - length of the header in number of chars

Method Detail

registerFormat

public void registerFormat(IChemFormatMatcher format)

Registers a format for detection.

getFormats

public List<IChemFormatMatcher> getFormats()

Returns the list of recognizable formats.

Returns:

List of IChemFormats.

guessFormat

public IChemFormat guessFormat(Reader input)
                        throws IOException

Creates a String of the Class name of the IChemObject reader for this file format. The input is read line-by-line until a line containing an identifying string is found.

The ReaderFactory detects more formats than the CDK has Readers for.

This method is not able to detect the format of gziped files. Use guessFormat(InputStream) instead for such files.

Returns:

The guessed IChemFormat or null if the file format is not recognized.

Throws:

IOException - if an I/O error occurs

IllegalArgumentException - if the input is null

See Also:

guessFormat(InputStream)

guessFormat

public IChemFormat guessFormat(InputStream input)
                        throws IOException

Throws:

IOException