Examples with PipedInputStream java.io.PipedInputStream used on opensource projects

Example 46 with PipedInputStream

use of java.io.PipedInputStream in project jdk8u_jdk by JetBrains.

the class StandardMidiFileWriter method getFileStream.

//=================================================================================
private InputStream getFileStream(int type, Sequence sequence) throws IOException {
    Track[] tracks = sequence.getTracks();
    int bytesBuilt = 0;
    int headerLength = 14;
    int length = 0;
    int timeFormat;
    float divtype;
    PipedOutputStream hpos = null;
    DataOutputStream hdos = null;
    PipedInputStream headerStream = null;
    InputStream[] trackStreams = null;
    InputStream trackStream = null;
    InputStream fStream = null;
    // Determine the filetype to write
    if (type == MIDI_TYPE_0) {
        if (tracks.length != 1) {
            return null;
        }
    } else if (type == MIDI_TYPE_1) {
        if (tracks.length < 1) {
            // $$jb: 05.31.99: we _can_ write TYPE_1 if tracks.length==1
            return null;
        }
    } else {
        if (tracks.length == 1) {
            type = MIDI_TYPE_0;
        } else if (tracks.length > 1) {
            type = MIDI_TYPE_1;
        } else {
            return null;
        }
    }
    // Now build the file one track at a time
    // Note that above we made sure that MIDI_TYPE_0 only happens
    // if tracks.length==1
    trackStreams = new InputStream[tracks.length];
    int trackCount = 0;
    for (int i = 0; i < tracks.length; i++) {
        try {
            trackStreams[trackCount] = writeTrack(tracks[i], type);
            trackCount++;
        } catch (InvalidMidiDataException e) {
            if (Printer.err)
                Printer.err("Exception in write: " + e.getMessage());
        }
    //bytesBuilt += trackStreams[i].getLength();
    }
    // Now seqence the track streams
    if (trackCount == 1) {
        trackStream = trackStreams[0];
    } else if (trackCount > 1) {
        trackStream = trackStreams[0];
        for (int i = 1; i < tracks.length; i++) {
            // don't include failed track streams
            if (trackStreams[i] != null) {
                trackStream = new SequenceInputStream(trackStream, trackStreams[i]);
            }
        }
    } else {
        throw new IllegalArgumentException("invalid MIDI data in sequence");
    }
    // Now build the header...
    hpos = new PipedOutputStream();
    hdos = new DataOutputStream(hpos);
    headerStream = new PipedInputStream(hpos);
    // Write the magic number
    hdos.writeInt(MThd_MAGIC);
    // Write the header length
    hdos.writeInt(headerLength - 8);
    // Write the filetype
    if (type == MIDI_TYPE_0) {
        hdos.writeShort(0);
    } else {
        // MIDI_TYPE_1
        hdos.writeShort(1);
    }
    // Write the number of tracks
    hdos.writeShort((short) trackCount);
    // Determine and write the timing format
    divtype = sequence.getDivisionType();
    if (divtype == Sequence.PPQ) {
        timeFormat = sequence.getResolution();
    } else if (divtype == Sequence.SMPTE_24) {
        timeFormat = (24 << 8) * -1;
        timeFormat += (sequence.getResolution() & 0xFF);
    } else if (divtype == Sequence.SMPTE_25) {
        timeFormat = (25 << 8) * -1;
        timeFormat += (sequence.getResolution() & 0xFF);
    } else if (divtype == Sequence.SMPTE_30DROP) {
        timeFormat = (29 << 8) * -1;
        timeFormat += (sequence.getResolution() & 0xFF);
    } else if (divtype == Sequence.SMPTE_30) {
        timeFormat = (30 << 8) * -1;
        timeFormat += (sequence.getResolution() & 0xFF);
    } else {
        // $$jb: 04.08.99: What to really do here?
        return null;
    }
    hdos.writeShort(timeFormat);
    // now construct an InputStream to become the FileStream
    fStream = new SequenceInputStream(headerStream, trackStream);
    hdos.close();
    length = bytesBuilt + headerLength;
    return fStream;
}

Example 47 with PipedInputStream

use of java.io.PipedInputStream in project JMRI by JMRI.

the class DCCppStreamPortControllerTest method setUp.

// The minimal setup for log4J
@Override
@Before
public void setUp() {
    apps.tests.Log4JFixture.setUp();
    JUnitUtil.resetInstanceManager();
    try {
        PipedInputStream tempPipe;
        tempPipe = new PipedInputStream();
        DataOutputStream ostream = new DataOutputStream(new PipedOutputStream(tempPipe));
        tempPipe = new PipedInputStream();
        DataInputStream istream = new DataInputStream(tempPipe);
        apc = new DCCppStreamPortController(istream, ostream, "Test");
    } catch (java.io.IOException ioe) {
        Assert.fail("IOException creating stream");
    }
}

Example 48 with PipedInputStream

use of java.io.PipedInputStream in project JMRI by JMRI.

the class XNetStreamPortControllerTest method setUp.

// The minimal setup for log4J
@Override
@Before
public void setUp() {
    apps.tests.Log4JFixture.setUp();
    JUnitUtil.resetInstanceManager();
    try {
        PipedInputStream tempPipe;
        tempPipe = new PipedInputStream();
        DataOutputStream ostream = new DataOutputStream(new PipedOutputStream(tempPipe));
        tempPipe = new PipedInputStream();
        DataInputStream istream = new DataInputStream(tempPipe);
        apc = new XNetStreamPortController(istream, ostream, "Test");
    } catch (java.io.IOException ioe) {
        Assert.fail("IOException creating stream");
    }
}

Example 49 with PipedInputStream

use of java.io.PipedInputStream in project JMRI by JMRI.

the class Z21XNetStreamPortControllerTest method setUp.

// The minimal setup for log4J
@Override
@Before
public void setUp() {
    apps.tests.Log4JFixture.setUp();
    JUnitUtil.resetInstanceManager();
    try {
        PipedInputStream tempPipe;
        tempPipe = new PipedInputStream();
        DataOutputStream ostream = new DataOutputStream(new PipedOutputStream(tempPipe));
        tempPipe = new PipedInputStream();
        DataInputStream istream = new DataInputStream(tempPipe);
        apc = new Z21XNetStreamPortController(istream, ostream, "Test");
    } catch (java.io.IOException ioe) {
        Assert.fail("IOException creating stream");
    }
}

Example 50 with PipedInputStream

use of java.io.PipedInputStream in project JMRI by JMRI.

the class SimulatorAdapter method openPort.

@Override
public String openPort(String portName, String appName) {
    try {
        PipedOutputStream tempPipeI = new PipedOutputStream();
        pout = new DataOutputStream(tempPipeI);
        inpipe = new DataInputStream(new PipedInputStream(tempPipeI));
        PipedOutputStream tempPipeO = new PipedOutputStream();
        outpipe = new DataOutputStream(tempPipeO);
        pin = new DataInputStream(new PipedInputStream(tempPipeO));
    } catch (java.io.IOException e) {
        log.error("init (pipe): Exception: " + e.toString());
    }
    opened = true;
    // indicates OK return
    return null;
}