public void decode(AsnInputStream ais) throws ParseException {
try {
AsnInputStream localAis = ais.readSequenceStream();
while (true) {
if (localAis.available() == 0) return;
int tag = localAis.readTag();
if (localAis.isTagPrimitive() || localAis.getTagClass() != Tag.CLASS_APPLICATION)
throw new ParseException(
PAbortCauseType.IncorrectTxPortion,
null,
"Error decoding TC-Uni: DialogPortion and Component portion must be constructive and has "
+ "tag class CLASS_APPLICATION");
switch (tag) {
case DialogPortion._TAG:
this.dp = TcapFactory.createDialogPortion(localAis);
break;
case Component._COMPONENT_TAG:
AsnInputStream compAis = localAis.readSequenceStream();
List<Component> cps = new ArrayList<Component>();
// its iterator :)
while (compAis.available() > 0) {
Component c = TcapFactory.createComponent(compAis);
if (c == null) {
break;
}
cps.add(c);
}
this.component = new Component[cps.size()];
this.component = cps.toArray(this.component);
break;
default:
throw new ParseException(
PAbortCauseType.IncorrectTxPortion,
null,
"Error decoding TC-Uni: DialogPortion and Componebt parsing: bad tag - " + tag);
}
}
} catch (IOException e) {
throw new ParseException(
PAbortCauseType.BadlyFormattedTxPortion,
null,
"IOException while decoding " + "TC-Uni: " + e.getMessage(),
e);
} catch (AsnException e) {
throw new ParseException(
PAbortCauseType.BadlyFormattedTxPortion,
null,
"AsnException while decoding " + "TC-Uni: " + e.getMessage(),
e);
}
}
public void decode(AsnInputStream aisA) throws ParseException {
// TAG has been decoded already, now, lets get LEN
try {
AsnInputStream ais = aisA.readSequenceStream();
int tag = ais.readTag();
if (tag != Tag.EXTERNAL)
throw new ParseException(
PAbortCauseType.IncorrectTxPortion,
null,
"Error decoding DialogPortion: wrong value of tag, expected EXTERNAL, found: " + tag);
ext.decode(ais);
if (!isAsn() || !isOid()) {
throw new ParseException(
PAbortCauseType.IncorrectTxPortion,
null,
"Error decoding DialogPortion: Oid and Asd parts not found");
}
// Check Oid
if (Arrays.equals(_DIALG_UNI, this.getOidValue())) this.uniDirectional = true;
else if (Arrays.equals(_DIALG_STRUCTURED, this.getOidValue())) this.uniDirectional = false;
else
throw new ParseException(
PAbortCauseType.IncorrectTxPortion,
null,
"Error decoding DialogPortion: bad Oid value");
AsnInputStream loaclAsnIS = new AsnInputStream(ext.getEncodeType());
// now lets get APDU
tag = loaclAsnIS.readTag();
this.dialogAPDU = TcapFactory.createDialogAPDU(loaclAsnIS, tag, isUnidirectional());
} catch (IOException e) {
throw new ParseException(
PAbortCauseType.BadlyFormattedTxPortion,
null,
"IOException when decoding DialogPortion: " + e.getMessage(),
e);
} catch (AsnException e) {
throw new ParseException(
PAbortCauseType.BadlyFormattedTxPortion,
null,
"AsnException when decoding DialogPortion: " + e.getMessage(),
e);
}
}
@Test(groups = {"functional.encode"})
public void testEncode() throws IOException, EncodeException {
byte[] expected = this.getData();
Invoke invoke = TcapFactory.createComponentInvoke();
invoke.setInvokeId(12l);
OperationCode oc = TcapFactory.createOperationCode();
oc.setLocalOperationCode(59L);
invoke.setOperationCode(oc);
Parameter p1 = TcapFactory.createParameter();
p1.setTagClass(Tag.CLASS_UNIVERSAL);
p1.setTag(Tag.STRING_OCTET);
p1.setData(new byte[] {0x0F});
Parameter p2 = TcapFactory.createParameter();
p2.setTagClass(Tag.CLASS_UNIVERSAL);
p2.setTag(Tag.STRING_OCTET);
p2.setData(
new byte[] {
(byte) 0xaa,
(byte) 0x98,
(byte) 0xac,
(byte) 0xa6,
0x5a,
(byte) 0xcd,
0x62,
0x36,
0x19,
0x0e,
0x37,
(byte) 0xcb,
(byte) 0xe5,
0x72,
(byte) 0xb9,
0x11
});
Parameter pm = TcapFactory.createParameter();
pm.setTagClass(Tag.CLASS_UNIVERSAL);
pm.setTag(Tag.SEQUENCE);
pm.setParameters(new Parameter[] {p1, p2});
invoke.setParameter(pm);
AsnOutputStream asnos = new AsnOutputStream();
invoke.encode(asnos);
byte[] encodedData = asnos.toByteArray();
assertTrue(Arrays.equals(expected, encodedData));
expected = this.getDataFull();
invoke = TcapFactory.createComponentInvoke();
invoke.setInvokeId(-5L);
invoke.setLinkedId(2L);
oc = TcapFactory.createOperationCode();
oc.setGlobalOperationCode(new long[] {1, 0, 0, 1});
invoke.setOperationCode(oc);
pm = TcapFactory.createParameter();
pm.setTagClass(Tag.CLASS_UNIVERSAL);
pm.setTag(Tag.STRING_OCTET);
pm.setData(new byte[] {11, 22, 33});
invoke.setParameter(pm);
asnos = new AsnOutputStream();
invoke.encode(asnos);
encodedData = asnos.toByteArray();
assertTrue(Arrays.equals(expected, encodedData));
}
@Test(groups = {"functional.decode"})
public void testDecodeWithParaSequ() throws IOException, ParseException {
byte[] b = this.getData();
AsnInputStream asnIs = new AsnInputStream(b);
Component comp = TcapFactory.createComponent(asnIs);
assertEquals(ComponentType.Invoke, comp.getType());
Invoke invokeComp = (Invoke) comp;
assertTrue(12L == invokeComp.getInvokeId());
OperationCode oc = invokeComp.getOperationCode();
assertNotNull(oc);
assertTrue(59 == oc.getLocalOperationCode());
assertEquals(OperationCodeType.Local, oc.getOperationType());
Parameter p = invokeComp.getParameter();
assertEquals(Tag.CLASS_UNIVERSAL, p.getTagClass());
assertEquals(false, p.isPrimitive());
assertEquals(Tag.SEQUENCE, p.getTag());
assertTrue(
Arrays.equals(
new byte[] {
0x04,
0x01,
0x0f,
0x04,
0x10,
(byte) 0xaa,
(byte) 0x98,
(byte) 0xac,
(byte) 0xa6,
0x5a,
(byte) 0xcd,
0x62,
0x36,
0x19,
0x0e,
0x37,
(byte) 0xcb,
(byte) 0xe5,
0x72,
(byte) 0xb9,
0x11
},
p.getData()));
Parameter[] params = invokeComp.getParameter().getParameters();
assertEquals(2, params.length);
p = params[0];
assertEquals(Tag.CLASS_UNIVERSAL, p.getTagClass());
assertEquals(true, p.isPrimitive());
assertEquals(Tag.STRING_OCTET, p.getTag());
assertTrue(Arrays.equals(new byte[] {0x0f}, p.getData()));
p = params[1];
assertEquals(Tag.CLASS_UNIVERSAL, p.getTagClass());
assertEquals(true, p.isPrimitive());
assertEquals(Tag.STRING_OCTET, p.getTag());
assertTrue(
Arrays.equals(
new byte[] {
(byte) 0xaa,
(byte) 0x98,
(byte) 0xac,
(byte) 0xa6,
0x5a,
(byte) 0xcd,
0x62,
0x36,
0x19,
0x0e,
0x37,
(byte) 0xcb,
(byte) 0xe5,
0x72,
(byte) 0xb9,
0x11
},
p.getData()));
b = this.getDataFull();
asnIs = new AsnInputStream(b);
comp = TcapFactory.createComponent(asnIs);
assertEquals(ComponentType.Invoke, comp.getType());
invokeComp = (Invoke) comp;
assertEquals(-5L, (long) invokeComp.getInvokeId());
assertEquals(2L, (long) invokeComp.getLinkedId());
oc = invokeComp.getOperationCode();
assertNotNull(oc);
assertEquals(OperationCodeType.Global, oc.getOperationType());
assertTrue(Arrays.equals(new long[] {1, 0, 0, 1}, oc.getGlobalOperationCode()));
p = invokeComp.getParameter();
assertEquals(Tag.CLASS_UNIVERSAL, p.getTagClass());
assertEquals(true, p.isPrimitive());
assertEquals(Tag.STRING_OCTET, p.getTag());
assertTrue(Arrays.equals(new byte[] {11, 22, 33}, p.getData()));
}
