- java.lang.Object
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- javax.sound.midi.spi.MidiFileReader
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Constructor Summary
Constructors Constructor Description MidiFileReader()
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Method Summary
All Methods Instance Methods Abstract Methods Modifier and Type Method Description abstract MidiFileFormatgetMidiFileFormat(File file)Obtains the MIDI file format of theFileprovided.abstract MidiFileFormatgetMidiFileFormat(InputStream stream)Obtains the MIDI file format of the input stream provided.abstract MidiFileFormatgetMidiFileFormat(URL url)Obtains the MIDI file format of theURLprovided.abstract SequencegetSequence(File file)Obtains a MIDI sequence from theFileprovided.abstract SequencegetSequence(InputStream stream)Obtains a MIDI sequence from the input stream provided.abstract SequencegetSequence(URL url)Obtains a MIDI sequence from theURLprovided.
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Method Detail
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getMidiFileFormat
public abstract MidiFileFormat getMidiFileFormat(InputStream stream) throws InvalidMidiDataException, IOException
Obtains the MIDI file format of the input stream provided. The stream must point to valid MIDI file data. In general, MIDI file readers may need to read some data from the stream before determining whether they support it. These parsers must be able to mark the stream, read enough data to determine whether they support the stream, and, if not, reset the stream's read pointer to its original position. If the input stream does not support this, this method may fail with anIOException.- Parameters:
stream- the input stream from which file format information should be extracted- Returns:
- a
MidiFileFormatobject describing the MIDI file format - Throws:
InvalidMidiDataException- if the stream does not point to valid MIDI file data recognized by the systemIOException- if an I/O exception occursNullPointerException- ifstreamisnull- See Also:
InputStream.markSupported(),InputStream.mark(int)
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getMidiFileFormat
public abstract MidiFileFormat getMidiFileFormat(URL url) throws InvalidMidiDataException, IOException
Obtains the MIDI file format of theURLprovided. TheURLmust point to valid MIDI file data.- Parameters:
url- theURLfrom which file format information should be extracted- Returns:
- a
MidiFileFormatobject describing the MIDI file format - Throws:
InvalidMidiDataException- if theURLdoes not point to valid MIDI file data recognized by the systemIOException- if an I/O exception occursNullPointerException- ifurlisnull
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getMidiFileFormat
public abstract MidiFileFormat getMidiFileFormat(File file) throws InvalidMidiDataException, IOException
Obtains the MIDI file format of theFileprovided. TheFilemust point to valid MIDI file data.- Parameters:
file- theFilefrom which file format information should be extracted- Returns:
- a
MidiFileFormatobject describing the MIDI file format - Throws:
InvalidMidiDataException- if theFiledoes not point to valid MIDI file data recognized by the systemIOException- if an I/O exception occursNullPointerException- iffileisnull
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getSequence
public abstract Sequence getSequence(InputStream stream) throws InvalidMidiDataException, IOException
Obtains a MIDI sequence from the input stream provided. The stream must point to valid MIDI file data. In general, MIDI file readers may need to read some data from the stream before determining whether they support it. These parsers must be able to mark the stream, read enough data to determine whether they support the stream, and, if not, reset the stream's read pointer to its original position. If the input stream does not support this, this method may fail with anIOException.- Parameters:
stream- the input stream from which theSequenceshould be constructed- Returns:
- a
Sequenceobject based on the MIDI file data contained in the input stream - Throws:
InvalidMidiDataException- if the stream does not point to valid MIDI file data recognized by the systemIOException- if an I/O exception occursNullPointerException- ifstreamisnull- See Also:
InputStream.markSupported(),InputStream.mark(int)
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getSequence
public abstract Sequence getSequence(URL url) throws InvalidMidiDataException, IOException
Obtains a MIDI sequence from theURLprovided. TheURLmust point to valid MIDI file data.- Parameters:
url- theURLfor which theSequenceshould be constructed- Returns:
- a
Sequenceobject based on the MIDI file data pointed to by theURL - Throws:
InvalidMidiDataException- if theURLdoes not point to valid MIDI file data recognized by the systemIOException- if an I/O exception occursNullPointerException- ifurlisnull
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getSequence
public abstract Sequence getSequence(File file) throws InvalidMidiDataException, IOException
Obtains a MIDI sequence from theFileprovided. TheFilemust point to valid MIDI file data.- Parameters:
file- theFilefrom which theSequenceshould be constructed- Returns:
- a
Sequenceobject based on the MIDI file data pointed to by theFile - Throws:
InvalidMidiDataException- if theFiledoes not point to valid MIDI file data recognized by the systemIOException- if an I/O exception occursNullPointerException- iffileisnull
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