public TS_Value readFlags(AtfxCache atfxCache, long iidLc) throws AoException {
long start = System.currentTimeMillis();
// read external component instances
long aidLc = atfxCache.getAidsByBaseType("aolocalcolumn").iterator().next();
ApplicationRelation relExtComps =
atfxCache.getApplicationRelationByBaseName(aidLc, "external_component");
Collection<Long> iidExtComps = atfxCache.getRelatedInstanceIds(aidLc, iidLc, relExtComps);
if (iidExtComps.size() < 1) {
return null;
} else if (iidExtComps.size() != 1) {
throw new AoException(
ErrorCode.AO_NOT_IMPLEMENTED,
SeverityFlag.ERROR,
0,
"The implementation currently only may read exactly one external component file");
}
long iidExtComp = iidExtComps.iterator().next();
long aidExtComp = atfxCache.getAidsByBaseType("aoexternalcomponent").iterator().next();
// get filename
Integer attrNo = atfxCache.getAttrNoByBaName(aidExtComp, "flags_filename_url");
if (attrNo == null) {
return null;
}
TS_Value v = atfxCache.getInstanceValue(aidExtComp, attrNo, iidExtComp);
if ((v == null)
|| (v.flag != 15)
|| (v.u.stringVal() == null)
|| (v.u.stringVal().length() < 1)) {
return null;
}
String flagsFilenameUrl = v.u.stringVal();
File fileRoot = new File(atfxCache.getContext().get("FILE_ROOT").value.u.stringVal());
File flagsFile = new File(fileRoot, flagsFilenameUrl);
// read start offset, may be DT_LONG or DT_LONGLONG
int flagsStartOffset = 0;
attrNo = atfxCache.getAttrNoByBaName(aidExtComp, "flags_start_offset");
if (attrNo == null) {
throw new AoException(
ErrorCode.AO_NOT_FOUND,
SeverityFlag.ERROR,
0,
"Application attribute derived from base attribute 'flags_start_offset' not found");
}
TS_Value vStartOffset = atfxCache.getInstanceValue(aidExtComp, attrNo, iidExtComp);
if (vStartOffset.u.discriminator() == DataType.DT_LONG) {
flagsStartOffset = vStartOffset.u.longVal();
} else if (vStartOffset.u.discriminator() == DataType.DT_LONGLONG) {
flagsStartOffset = (int) ODSHelper.asJLong(vStartOffset.u.longlongVal());
}
// read length
attrNo = atfxCache.getAttrNoByBaName(aidExtComp, "component_length");
int componentLength = atfxCache.getInstanceValue(aidExtComp, attrNo, iidExtComp).u.longVal();
// read values
TS_Value tsValue = new TS_Value();
tsValue.flag = (short) 15;
tsValue.u = new TS_Union();
tsValue.u.shortSeq(new short[componentLength]);
RandomAccessFile raf = null;
byte[] backingBuffer = new byte[2];
try {
// open source channel
raf = new BufferedRandomAccessFile(flagsFile, "r", BUFFER_SIZE);
raf.seek(flagsStartOffset);
for (int i = 0; i < componentLength; i++) {
raf.read(backingBuffer, 0, backingBuffer.length);
ByteBuffer sourceMbb = ByteBuffer.wrap(backingBuffer);
sourceMbb.order(ByteOrder.LITTLE_ENDIAN);
tsValue.u.shortSeq()[i] = sourceMbb.getShort();
}
LOG.info(
"Read "
+ componentLength
+ " flags from component file '"
+ flagsFilenameUrl
+ "' in "
+ (System.currentTimeMillis() - start)
+ "ms");
return tsValue;
} catch (IOException e) {
LOG.error(e.getMessage(), e);
throw new AoException(ErrorCode.AO_NOT_FOUND, SeverityFlag.ERROR, 0, e.getMessage());
} finally {
backingBuffer = null;
try {
if (raf != null) {
raf.close();
}
raf = null;
} catch (Exception e) {
LOG.error(e.getMessage(), e);
}
}
}
public TS_Value readValues(AtfxCache atfxCache, long iidLc, DataType targetDataType)
throws AoException {
// read external component instances
long aidLc = atfxCache.getAidsByBaseType("aolocalcolumn").iterator().next();
ApplicationRelation relExtComps =
atfxCache.getApplicationRelationByBaseName(aidLc, "external_component");
List<Long> iidExtComps = atfxCache.getRelatedInstanceIds(aidLc, iidLc, relExtComps);
if (iidExtComps.size() > 0) {
Collections.sort(iidExtComps, new ExternalComponentComparator(atfxCache));
}
TS_Value tsValue = new TS_Value();
tsValue.flag = (short) 15;
tsValue.u = new TS_Union();
// get raw data type
DataType rawDataType = targetDataType;
Integer attrNo = atfxCache.getAttrNoByBaName(aidLc, "raw_datatype");
if (attrNo != null) {
TS_Value valRawDatatype = atfxCache.getInstanceValue(aidLc, attrNo, iidLc);
if (valRawDatatype != null && valRawDatatype.flag == 15) {
int val = valRawDatatype.u.enumVal();
if (val == 1) { // DT_STRING
rawDataType = DataType.DS_STRING;
} else if (val == 2) { // DT_SHORT
rawDataType = DataType.DS_SHORT;
} else if (val == 3) { // DT_FLOAT
rawDataType = DataType.DS_FLOAT;
} else if (val == 4) { // DT_BOOLEAN
rawDataType = DataType.DS_BOOLEAN;
} else if (val == 5) { // DT_BYTE
rawDataType = DataType.DS_BYTE;
} else if (val == 6) { // DT_LONG
rawDataType = DataType.DS_LONG;
} else if (val == 7) { // DT_DOUBLE
rawDataType = DataType.DS_DOUBLE;
} else if (val == 8) { // DT_LONGLONG
rawDataType = DataType.DS_LONGLONG;
} else if (val == 10) { // DT_DATE
rawDataType = DataType.DS_DATE;
} else if (val == 11) { // DT_BYTESTR
rawDataType = DataType.DS_BYTESTR;
} else if (val == 13) { // DT_COMPLEX
rawDataType = DataType.DS_COMPLEX;
} else if (val == 14) { // DT_DCOMPLEX
rawDataType = DataType.DS_DCOMPLEX;
} else if (val == 28) { // DT_EXTERNALREFERENCE
rawDataType = DataType.DS_EXTERNALREFERENCE;
} else if (val == 30) { // DT_ENUM
rawDataType = DataType.DS_ENUM;
}
}
}
// DS_STRING
if (rawDataType == DataType.DS_STRING || rawDataType == DataType.DS_BYTESTR) {
List<String> list = new ArrayList<String>();
for (long iidExtComp : iidExtComps) {
list.addAll(readStringValues(atfxCache, iidExtComp));
}
tsValue.u.stringSeq(list.toArray(new String[0]));
} // DS_DATE
else if (rawDataType == DataType.DS_DATE) {
List<String> list = new ArrayList<String>();
for (long iidExtComp : iidExtComps) {
list.addAll(readStringValues(atfxCache, iidExtComp));
}
tsValue.u.dateSeq(list.toArray(new String[0]));
}
// DS_NUMBER
else {
List<Number> list = new ArrayList<Number>();
for (long iidExtComp : iidExtComps) {
list.addAll(readNumberValues(atfxCache, iidExtComp, rawDataType));
}
// DS_BOOLEAN
if (rawDataType == DataType.DS_BOOLEAN) {
boolean[] ar = new boolean[list.size()];
for (int i = 0; i < list.size(); i++) {
ar[i] = list.get(i).byteValue() != 0;
}
tsValue.u.booleanSeq(ar);
}
// DS_BYTE
else if (rawDataType == DataType.DS_BYTE) {
byte[] ar = new byte[list.size()];
for (int i = 0; i < list.size(); i++) {
ar[i] = list.get(i).byteValue();
}
tsValue.u.byteSeq(ar);
}
// DS_SHORT
else if (rawDataType == DataType.DS_SHORT) {
short[] ar = new short[list.size()];
for (int i = 0; i < list.size(); i++) {
ar[i] = list.get(i).shortValue();
}
tsValue.u.shortSeq(ar);
}
// DS_LONG
else if (rawDataType == DataType.DS_LONG) {
int[] ar = new int[list.size()];
for (int i = 0; i < list.size(); i++) {
ar[i] = list.get(i).intValue();
}
tsValue.u.longSeq(ar);
}
// DS_DOUBLE
else if (rawDataType == DataType.DS_DOUBLE) {
double[] ar = new double[list.size()];
for (int i = 0; i < list.size(); i++) {
ar[i] = list.get(i).doubleValue();
}
tsValue.u.doubleSeq(ar);
}
// DS_LONGLONG
else if (rawDataType == DataType.DS_LONGLONG) {
T_LONGLONG[] ar = new T_LONGLONG[list.size()];
for (int i = 0; i < list.size(); i++) {
ar[i] = ODSHelper.asODSLongLong(list.get(i).longValue());
}
tsValue.u.longlongSeq(ar);
}
// DS_FLOAT
else if (rawDataType == DataType.DS_FLOAT) {
float[] ar = new float[list.size()];
for (int i = 0; i < list.size(); i++) {
ar[i] = list.get(i).floatValue();
}
tsValue.u.floatSeq(ar);
}
// DS_COMPLEX
else if (rawDataType == DataType.DS_COMPLEX) {
int size = list.size() / 2;
T_COMPLEX[] ar = new T_COMPLEX[size];
for (int i = 0; i < size; i++) {
ar[i] = new T_COMPLEX();
ar[i].r = list.get(i * 2).floatValue();
ar[i].i = list.get(i * 2 + 1).floatValue();
}
tsValue.u.complexSeq(ar);
}
// DS_DCOMPLEX
else if (rawDataType == DataType.DS_DCOMPLEX) {
int size = list.size() / 2;
T_DCOMPLEX[] ar = new T_DCOMPLEX[size];
for (int i = 0; i < size; i++) {
ar[i] = new T_DCOMPLEX();
ar[i].r = list.get(i * 2).doubleValue();
ar[i].i = list.get(i * 2 + 1).doubleValue();
}
tsValue.u.dcomplexSeq(ar);
}
// unsupported
else {
throw new AoException(
ErrorCode.AO_NOT_IMPLEMENTED,
SeverityFlag.ERROR,
0,
"Reading values from external component not yet supported for datatype: "
+ ODSHelper.dataType2String(targetDataType));
}
}
return tsValue;
}