Java Priority.get方法代码示例

import tuwien.auto.calimero.Priority; //导入方法依赖的package包/类
/**
 * Creates a new cEMI message out of the supplied EMI frame.
 * <p>
 * 
 * @param frame EMI frame
 * @return the new cEMI message
 * @throws KNXFormatException if no (valid) EMI structure was found or unsupported EMI
 *         message code
 */
public static CEMI createFromEMI(byte[] frame) throws KNXFormatException
{
	// check for minimum frame length (i.e. busmonitor)
	if (frame.length < 4)
		throw new KNXFormatException("EMI frame too short");
	final int mc = frame[0] & 0xff;
	if (mc == CEMIBusMon.MC_BUSMON_IND) {
		return new CEMIBusMon(frame[1] & 0xff, (frame[2] & 0xff) << 8 | frame[3] & 0xff,
			false, truncate(frame, 4, frame.length - 4));
	}
	final Priority p = Priority.get(frame[1] >> 2 & 0x3);
	final boolean ack = (frame[1] & 0x02) != 0;
	final boolean c = (frame[1] & 0x01) != 0;
	final int dst = (frame[4] & 0xff) << 8 | frame[5] & 0xff;
	final KNXAddress a = (frame[6] & 0x80) != 0 ?
		(KNXAddress) new GroupAddress(dst) : new IndividualAddress(dst);
	final int hops = frame[6] >> 4 & 0x07;
	final int len = (frame[6] & 0x0f) + 1;
	final byte[] tpdu = truncate(frame, 7, Math.min(len, frame.length - 7));
	// no long frames in EMI2
	return c ? new CEMILData(mc, new IndividualAddress(0), a, tpdu, p, c)
		: new CEMILData(mc, new IndividualAddress(0), a, tpdu, p, true, true, ack,
			hops);
}
 

import tuwien.auto.calimero.Priority; //导入方法依赖的package包/类
/**
 * Creates a new L-data frame out of a byte array.
 * <p>
 * 
 * @param data byte array containing the L-data frame
 * @param offset start offset of frame structure in <code>data</code>, offset &gt;=
 *        0
 * @throws KNXFormatException if length of data too short for frame, on no valid frame
 *         structure
 */
public TP1LData(byte[] data, int offset) throws KNXFormatException
{
	final ByteArrayInputStream is =
		new ByteArrayInputStream(data, offset, data.length - offset);
	final int avail = is.available();
	if (avail < MIN_LENGTH)
		throw new KNXFormatException("data too short for L-data frame", avail);
	final int ctrl = is.read();
	// parse control field and check if valid
	if ((ctrl & 0x53) != 0x10)
		throw new KNXFormatException("invalid control field", ctrl);

	type = LDATA_FRAME;
	ext = (ctrl & 0x80) == 0;
	repetition = (ctrl & 0x20) == 0;
	p = Priority.get((ctrl >> 2) & 0x3);

	final int ctrle = ext ? readCtrlEx(is) : 0;
	src = new IndividualAddress((is.read() << 8) | is.read());
	final int addr = (is.read() << 8) | is.read();
	final int npci = is.read();
	final int len;
	if (ext) {
		hopcount = (ctrle & 0x70) >> 4;
		setDestination(addr, (ctrle & 0x80) != 0);
		len = npci;
		if (len == 255)
			throw new KNXFormatException("escape-code in length field not supported");
	}
	else {
		hopcount = (npci & 0x70) >> 4;
		setDestination(addr, (npci & 0x80) != 0);
		len = npci & 0x0f;
	}
	tpdu = new byte[len + 1];
	if (is.read(tpdu, 0, tpdu.length) != tpdu.length)
		throw new KNXFormatException("data too short for L-data TPDU");
	fcs = is.read();
}
 

import tuwien.auto.calimero.Priority; //导入方法依赖的package包/类
/**
 * Creates a new L-polldata frame out of a byte array.
 * <p>
 * 
 * @param data byte array containing the L-polldata frame
 * @param offset start offset of frame structure in <code>data</code>, offset &gt;=
 *        0
 * @throws KNXFormatException if length of data too short for frame, on no valid frame
 *         structure
 */
public TP1LPollData(byte[] data, int offset) throws KNXFormatException
{
	final ByteArrayInputStream is =
		new ByteArrayInputStream(data, offset, data.length - offset);
	final int avail = is.available();
	if (avail < MIN_LENGTH)
		throw new KNXFormatException("data too short for L-polldata frame", avail);
	final int ctrl = is.read();
	// parse control field and check if valid
	if (ctrl != 0xF0)
		throw new KNXFormatException("invalid control field", ctrl);
	type = LPOLLDATA_FRAME;
	p = Priority.get((ctrl >> 2) & 0x3);
	int addr = (is.read() << 8) | is.read();
	src = new IndividualAddress(addr);
	addr = (is.read() << 8) | is.read();
	dst = new GroupAddress(addr);
	final int len = is.read() & 0x0f;
	expData = len;
	fcs = is.read();
	// do we really get poll data response here? don't know for sure..
	if (expData <= is.available()) {
		tpdu = new byte[expData];
		is.read(tpdu, 0, expData);
	}
}
 

import tuwien.auto.calimero.Priority; //导入方法依赖的package包/类
/**
 * Creates a new datapoint from XML input.
 * <p>
 * If the current XML element position is no start tag, the next element tag is read.
 * The datapoint element is then expected to be the current element in the reader. It
 * reads the start tag and attributes of a datapoint element, and sets the reader to
 * the next position.
 * 
 * @param r a XML reader
 * @throws KNXMLException if the XML element is no datapoint or could not be read
 *         correctly
 */
Datapoint(XMLReader r) throws KNXMLException
{
	if (r.getPosition() != XMLReader.START_TAG)
		r.read();
	final Element e = r.getCurrent();
	final int line = r.getLineNumber();
	if (r.getPosition() != XMLReader.START_TAG || !e.getName().equals(TAG_DATAPOINT))
		throw new KNXMLException("no KNX datapoint element", e != null ? e.getName()
			: null, line);
	stateBased = readDPType(r);
	if ((name = e.getAttribute(ATTR_NAME)) == null)
		throw new KNXMLException("missing attribute " + ATTR_NAME, null, line);
	if ((dptID = e.getAttribute(ATTR_DPTID)) == null)
		throw new KNXMLException("missing attribute " + ATTR_DPTID, null, line);
	if (dptID.length() == 0)
		dptID = null;
	String a = null;
	try {
		a = e.getAttribute(ATTR_MAINNUMBER);
		mainNo = Integer.decode(a).intValue();
		a = e.getAttribute(ATTR_PRIORITY);
		priority = Priority.get(a);
	}
	catch (final RuntimeException rte) {
		throw new KNXMLException("malformed attribute, " + rte.getMessage(), a, line);
	}
	r.read();
}
 

import tuwien.auto.calimero.Priority; //导入方法依赖的package包/类
/**
 * Creates a new L-data frame out of a byte array.
 * <p>
 * 
 * @param data byte array containing the L-data frame
 * @param offset start offset of frame structure in <code>data</code>, offset &gt;=
 *        0
 * @throws KNXFormatException if length of data too short for frame, on no valid frame
 *         structure
 */
public PL110LData(byte[] data, int offset) throws KNXFormatException
{
	final ByteArrayInputStream is =
		new ByteArrayInputStream(data, offset, data.length - offset);
	final int avail = is.available();
	if (avail < MIN_LENGTH)
		throw new KNXFormatException("data too short for L-data frame", avail);
	final int ctrl = is.read();
	// parse control field and check if valid
	if ((ctrl & 0x53) != 0x10)
		throw new KNXFormatException("invalid control field", ctrl);
	type = LDATA_FRAME;
	ext = (ctrl & 0x80) == 0;
	repetition = (ctrl & 0x20) == 0;
	p = Priority.get((ctrl >> 2) & 0x3);

	final int ctrle = ext ? readCtrlEx(is) : 0;
	src = new IndividualAddress((is.read() << 8) | is.read());
	final int addr = (is.read() << 8) | is.read();
	final int npci = is.read();
	final int len;
	if (ext) {
		hopcount = (ctrle & 0x70) >> 4;
		setDestination(addr, (ctrle & 0x80) != 0);
		len = npci;
		if (len > 64)
			throw new KNXFormatException("APDU length exceeds maximum of 64 bytes",
				len);
	}
	else {
		hopcount = (npci & 0x70) >> 4;
		setDestination(addr, (npci & 0x80) != 0);
		len = npci & 0x0f;
	}

	tpdu = new byte[len + 1];
	if (is.read(tpdu, 0, tpdu.length) != tpdu.length)
		throw new KNXFormatException("data too short for L-data TPDU");
	fcs = is.read();
	doa = new byte[2];
	is.read(doa, 1, 1);
}
 

import tuwien.auto.calimero.Priority; //导入方法依赖的package包/类
/**
 * Creates a new L-data frame out of a byte array.
 * <p>
 * 
 * @param data byte array containing the L-data frame
 * @param offset start offset of frame structure in <code>data</code>, offset &gt;=
 *        0
 * @throws KNXFormatException if length of data too short for frame, on no valid frame
 *         structure
 */
public PL132LData(byte[] data, int offset) throws KNXFormatException
{
	final ByteArrayInputStream is =
		new ByteArrayInputStream(data, offset, data.length - offset);
	final int avail = is.available();
	if (avail < MIN_LENGTH)
		throw new KNXFormatException("data too short for L-data frame", avail);
	doa = new byte[2];
	is.read(doa, 0, 2);
	final int ctrl = is.read();
	// parse control field and check if valid
	if ((ctrl & 0xC) != 0xC)
		throw new KNXFormatException("invalid control field", ctrl);
	type = LDATA_FRAME;
	ext = (ctrl & 0x80) == 0;
	repetition = (ctrl & 0x40) == 0;
	p = Priority.get(ctrl & 0x3);
	final boolean group = (ctrl & 0x20) == 0x20;
	ack = (ctrl & 0x10) == 0x10;
	// check fourth byte for extended control field
	final int ctrle = ext ? readCtrlEx(is) : 0;
	src = new IndividualAddress((is.read() << 8) | is.read());
	setDestination((is.read() << 8) | is.read(), group);

	final int npci = is.read();
	final int len;
	if (ext) {
		hopcount = (ctrle & 0x70) >> 4;
		len = npci;
		if (len > 64)
			throw new KNXFormatException("APDU length exceeds maximum of 64 bytes",
				len);
	}
	else {
		hopcount = (npci & 0x70) >> 4;
		len = npci & 0x0f;
	}
	tpdu = new byte[len + 1];
	if (is.read(tpdu, 0, tpdu.length) != tpdu.length)
		throw new KNXFormatException("data too short for L-data TPDU");
	fcs = is.read() << 8 | is.read();
}