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);
}
}
@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()));
}
