diff options
Diffstat (limited to 'src/main/java/org/uic/barcode/dynamicFrame/api/SimpleDynamicFrame.java')
| -rw-r--r-- | src/main/java/org/uic/barcode/dynamicFrame/api/SimpleDynamicFrame.java | 68 |
1 files changed, 44 insertions, 24 deletions
diff --git a/src/main/java/org/uic/barcode/dynamicFrame/api/SimpleDynamicFrame.java b/src/main/java/org/uic/barcode/dynamicFrame/api/SimpleDynamicFrame.java index ec52758..65b81d6 100644 --- a/src/main/java/org/uic/barcode/dynamicFrame/api/SimpleDynamicFrame.java +++ b/src/main/java/org/uic/barcode/dynamicFrame/api/SimpleDynamicFrame.java @@ -120,7 +120,7 @@ public class SimpleDynamicFrame implements IDynamicFrame { return DynamicFrameCoderV1.encode(this);
- } else if (Constants.DYNAMIC_BARCODE_FORMAT_VERSION_1.equals(format)) {
+ } else if (Constants.DYNAMIC_BARCODE_FORMAT_VERSION_2.equals(format)) {
return DynamicFrameCoderV2.encode(this);
@@ -135,13 +135,12 @@ public class SimpleDynamicFrame implements IDynamicFrame { return DynamicFrameCoderV1.encode(level1Data);
- } else if (Constants.DYNAMIC_BARCODE_FORMAT_VERSION_1.equals(format)) {
+ } else if (Constants.DYNAMIC_BARCODE_FORMAT_VERSION_2.equals(format)) {
return DynamicFrameCoderV2.encode(level1Data);
}
-
- return null;
+ throw new EncodingFormatException("Dynamic Header Version not supported: " + format);
}
private byte[] getEncoded(String path, byte[] data) throws EncodingFormatException {
@@ -150,29 +149,29 @@ public class SimpleDynamicFrame implements IDynamicFrame { return DynamicFrameCoderV1.getEncoded(path, data);
- } else if (Constants.DYNAMIC_BARCODE_FORMAT_VERSION_1.equals(format)) {
+ } else if (Constants.DYNAMIC_BARCODE_FORMAT_VERSION_2.equals(format)) {
return DynamicFrameCoderV2.getEncoded(path, data);
}
- return null;
+ throw new EncodingFormatException("Dynamic Header Version not supported: " + format);
}
- private byte[] encode(ILevel2Data level2SignedData2) throws EncodingFormatException {
+ private byte[] encode(ILevel2Data level2Data) throws EncodingFormatException {
if (Constants.DYNAMIC_BARCODE_FORMAT_VERSION_1.equals(format)) {
- return DynamicFrameCoderV1.encode(level2SignedData2);
+ return DynamicFrameCoderV1.encode(level2Data);
- } else if (Constants.DYNAMIC_BARCODE_FORMAT_VERSION_1.equals(format)) {
+ } else if (Constants.DYNAMIC_BARCODE_FORMAT_VERSION_2.equals(format)) {
- return DynamicFrameCoderV2.encode(level2SignedData2);
+ return DynamicFrameCoderV2.encode(level2Data);
}
- return null;
+ throw new EncodingFormatException("Dynamic Header Version not supported: " + format);
}
/**
@@ -182,22 +181,24 @@ public class SimpleDynamicFrame implements IDynamicFrame { *
* @param bytes the bytes
* @return the dynamic header
+ * @throws EncodingFormatException
*/
- public void decode(byte[] bytes) {
+ public void decode(byte[] bytes) throws EncodingFormatException {
String format = getFormat(bytes);
if (Constants.DYNAMIC_BARCODE_FORMAT_VERSION_1.equals(format)) {
DynamicFrameCoderV1.decode(this,bytes);
+ return;
} else if (Constants.DYNAMIC_BARCODE_FORMAT_VERSION_2.equals(format)) {
DynamicFrameCoderV2.decode(this,bytes);
-
+ return;
}
-
+ throw new EncodingFormatException("Dynamic Header Version not supported");
}
@@ -211,12 +212,35 @@ public class SimpleDynamicFrame implements IDynamicFrame { * @return true, if is static header
*/
private static String getFormat(byte[] data) {
- byte[] start = "U1".getBytes();
- if (start[0] != data[0] || start[1]!= start[1]) {
+
+ if (data == null || data.length < 4) return null;
+
+ byte[] startBits = new byte[4];
+ startBits[0] = data[0];
+ startBits[1] = data[1];
+ startBits[2] = data[2];
+ startBits[3] = data[3];
+
+ String start = AsnUtils.toBooleanString(startBits);
+
+ /*
+ * bitshift:
+ *
+ * version 1:
+ * optional Level2Data 1 bit
+ * length of format: 8 bit
+ *
+ * version 2:
+ * extensionIndicator 1 bit
+ * optional Level2Data 1 bit
+ * length of format: 8 bit
+ */
+
+ if (Constants.DYNAMIC_BARCODE_FORMAT_VERSION_1_BIN.equals(start.substring(9, 23))) {
return Constants.DYNAMIC_BARCODE_FORMAT_VERSION_1;
}
- start = "U2".getBytes();
- if (start[0] != data[0] || start[1]!= start[1]) {
+
+ if (Constants.DYNAMIC_BARCODE_FORMAT_VERSION_2_BIN.equals(start.substring(10, 24))) {
return Constants.DYNAMIC_BARCODE_FORMAT_VERSION_2;
}
return null;
@@ -392,13 +416,9 @@ public class SimpleDynamicFrame implements IDynamicFrame { try {
- //byte[] encodedData = encode(level2Data.getLevel1Data());
- //String s1 = AsnUtils.toBooleanString(encodedData);
- //TODO
- byte[] encodedData2 = getEncoded("Level1Data", data);
- //String s2 = AsnUtils.toBooleanString(encodedData2);
+ byte[] encodedData = getEncoded("Level1Data", data);
- sig.update(encodedData2);
+ sig.update(encodedData);
} catch (SignatureException e) {
return Constants.LEVEL1_VALIDATION_SIG_ALG_NOT_IMPLEMENTED;
|