/**
* PDF has a wacky grammar which must be a legacy of PostScript's postfix syntax. A keyword of R
* means that the two previous objects are really part of an indirect object reference. This means
* that when a vector of objects is complete, it has to be read backwards so that indirect object
* references can be collapsed out. In the case of a dictionary, this has to be done before the
* content can be interpreted as key-value pairs.
*/
private void collapseObjectVector(Vector v) throws PdfException {
for (int i = v.size() - 1; i >= 2; i--) {
PdfObject obj = (PdfObject) v.elementAt(i);
if (obj instanceof PdfSimpleObject) {
Token tok = ((PdfSimpleObject) obj).getToken();
if (tok instanceof Keyword) {
if ("R".equals(((Keyword) tok).getValue())) {
// We're in the key of 'R'. The two previous tokens
// had better be Numerics. Three objects in the Vector
// are replaced by one.
try {
PdfSimpleObject nobj = (PdfSimpleObject) v.elementAt(i - 2);
Numeric ntok = (Numeric) nobj.getToken();
int objNum = ntok.getIntegerValue();
nobj = (PdfSimpleObject) v.elementAt(i - 1);
ntok = (Numeric) nobj.getToken();
int genNum = ntok.getIntegerValue();
v.set(i - 2, new PdfIndirectObj(objNum, genNum, _objectMap));
v.removeElementAt(i);
v.removeElementAt(i - 1);
i -= 2;
} catch (Exception e) {
throw new PdfMalformedException("Malformed indirect object reference");
}
}
}
}
}
}
/* (non-Javadoc)
* @see com.lexst.db.head.Field#resolve(byte[], int)
*/
@Override
public int resolve(byte[] b, int offset) {
int off = offset;
dataType = b[off];
off += 1;
columnId = Numeric.toShort(b, off, 2);
off += 2;
byte sz = b[off];
off += 1;
byte[] nm = new byte[sz];
System.arraycopy(b, off, nm, 0, sz);
name = new String(nm, 0, nm.length);
off += sz;
indexType = b[off];
off += 1;
allowNull = (b[off] == 1 ? true : false);
off += 1;
function = b[off];
off += 1;
value = Numeric.toLong(b, off, 8);
off += 8;
return off - offset;
}
/** {@inheritDoc} */
@Override
public int compareTo(Numeric other) {
if (this.value == other.intValue()) {
return 0;
} else {
return (other.intValue() < this.value) ? 1 : -1;
}
}
/* (non-Javadoc)
* @see com.lexst.db.head.Field#build()
*/
@Override
public byte[] build() {
ByteArrayOutputStream buf = new ByteArrayOutputStream(128);
buf.write(dataType); // data type
byte[] b = Numeric.toBytes(columnId);
buf.write(b, 0, b.length); // column id
byte[] bs = name.getBytes();
byte sz = (byte) (bs.length & 0xFF);
buf.write(sz); // name size
buf.write(bs, 0, bs.length); // name bytes
buf.write(indexType); // index type
byte tag = (byte) (allowNull ? 1 : 0);
buf.write(tag); // allow null
buf.write(function); // function type
b = Numeric.toBytes(value);
buf.write(b, 0, b.length); // default value
return buf.toByteArray();
}
/**
* Reads an object definition, given the first numeric object, which has already been read and is
* passed as an argument. This is called by the no-argument readObjectDef; the only other case in
* which it will be called is for a cross-reference stream, which can be distinguished from a
* cross-reference table only once the first token is read.
*/
public PdfObject readObjectDef(Numeric objNumTok) throws IOException, PdfException {
String invDef = "Invalid object definition";
reset();
// The start of an object must be <num> <num> obj
// Numeric objNumTok = (Numeric) getNext (Numeric.class, invDef);
Numeric genNumTok = (Numeric) getNext(Numeric.class, invDef);
Keyword objKey = (Keyword) getNext(Keyword.class, invDef);
if (!"obj".equals(objKey.getValue())) {
throw new PdfMalformedException(invDef);
}
if (_tokenizer.getWSString().length() > 1) {
_pdfACompliant = false;
}
PdfObject obj = readObject();
// Now a special-case check to read a stream object, which
// consists of a dictionary followed by a stream token.
if (obj instanceof PdfDictionary) {
Stream strm = null;
try {
strm = (Stream) getNext(Stream.class, "");
} catch (Exception e) {
// if we get an exception, it just means it wasn't a stream
}
if (strm != null) {
// Assimilate the dictionary and the stream token into the
// object to be returned
PdfStream strmObj = new PdfStream((PdfDictionary) obj, strm);
obj = strmObj;
}
}
obj.setObjNumber(objNumTok.getIntegerValue());
obj.setGenNumber(genNumTok.getIntegerValue());
return obj;
}
public void setData(ItemCaract caract, Numeric value) {
if (caract.getNumericType() != value.getNumericType()) {
throw new IllegalArgumentException();
}
if (data.containsKey(caract.getNumericType())) {
throw new IllegalStateException();
}
data.put(caract, value);
boolean change = false;
do {
change = false;
change = eventuallyUseBeginComplete() || change;
change = eventuallyUseBeginDuration() || change;
change = eventuallyUseCompleteDuration() || change;
change = eventuallyUseDurationWork() || change;
change = eventuallyUseDurationLoad() || change;
change = eventuallyUseLoadWork() || change;
} while (change);
}
public Map<String, Construct> evaluate(BindableEvent e) throws EventException {
Map<String, Construct> retn = new HashMap<String, Construct>();
if (e instanceof Numeric) {
Numeric msg = (Numeric) e;
retn.put("id", new CString(msg.getBot().getID(), Target.UNKNOWN));
retn.put("numeric", new CString(msg.getNumeric().getName(), Target.UNKNOWN));
retn.put("numericid", new CInt(msg.getNumeric().getCode(), Target.UNKNOWN));
retn.put("args", Construct.GetConstruct(msg.getArgs()));
retn.put("message", new CString(msg.getMessage(), Target.UNKNOWN));
}
return retn;
}
public Double summarize(Double[] a) {
return Numeric.mean(a);
}