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I have a treat for crappy code scavengers. Here is some code which has a Cyclomatic Complexity of 68 and NPath Complexity of 34,632 (this method is ONLY 189 lines long (154 NCSS)).
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| /*
* Main reading method
*/
public void read(final ByteBuffer byteBuffer) throws Exception {
invalidateBuffer();
// Check that the buffer is not bigger than 1 Megabyte. For security reasons
// we will abort parsing when 1 Mega of queued chars was found.
if (buffer.length() > maxBufferSize)
throw new Exception("Stopped parsing never ending stanza");
CharBuffer charBuffer = encoder.decode(byteBuffer);
char[] buf = charBuffer.array();
int readByte = charBuffer.remaining();
// Just return if nothing was read
if (readByte == 0)
return;
// Verify if the last received byte is an incomplete double byte character
char lastChar = buf[readByte - 1];
if (lastChar >= 0xfff0) {
// Rewind the position one place so the last byte stays in the buffer
// The missing byte should arrive in the next iteration. Once we have both
// of bytes we will have the correct character
byteBuffer.position(byteBuffer.position() - 1);
// Decrease the number of bytes read by one
readByte--;
// Just return if nothing was read
if (readByte == 0)
return;
}
buffer.append(buf, 0, readByte);
// Do nothing if the buffer only contains white spaces
if (buffer.charAt(0) <= ' ' && buffer.charAt(buffer.length() - 1) <= ' ')
if ("".equals(buffer.toString().trim())) {
// Empty the buffer so there is no memory leak
buffer.delete(0, buffer.length());
return;
}
// Robot.
char ch;
boolean isHighSurrogate = false;
for (int i = 0; i < readByte; i++) {
ch = buf[i];
if (ch < 0x20 && ch != 0x9 && ch != 0xA && ch != 0xD && ch != 0x0)
// Unicode characters in the range 0x0000-0x001F other than 9, A, and D are not allowed in XML
// We need to allow the NULL character, however, for Flash XMLSocket clients to work.
throw new Exception("Disallowed character");
if (isHighSurrogate) {
if (Character.isLowSurrogate(ch))
// Everything is fine. Clean up traces for surrogates
isHighSurrogate = false;
else
// Trigger error. Found high surrogate not followed by low surrogate
throw new Exception("Found high surrogate not followed by low surrogate");
} else if (Character.isHighSurrogate(ch))
isHighSurrogate = true;
else if (Character.isLowSurrogate(ch))
// Trigger error. Found low surrogate char without a preceding high surrogate
throw new Exception("Found low surrogate char without a preceding high surrogate");
if (status == XMLLightweightParser.TAIL) {
// Looking for the close tag
if (depth < 1 && ch == head.charAt(tailCount)) {
tailCount++;
if (tailCount == head.length()) {
// Close stanza found!
// Calculate the correct start,end position of the message into the buffer
int end = buffer.length() - readByte + i + 1;
String msg = buffer.substring(startLastMsg, end);
// Add message to the list
foundMsg(msg);
startLastMsg = end;
}
} else {
tailCount = 0;
status = XMLLightweightParser.INSIDE;
}
} else if (status == XMLLightweightParser.PRETAIL) {
if (ch == XMLLightweightParser.CDATA_START[cdataOffset]) {
cdataOffset++;
if (cdataOffset == XMLLightweightParser.CDATA_START.length) {
status = XMLLightweightParser.INSIDE_CDATA;
cdataOffset = 0;
continue;
}
} else {
cdataOffset = 0;
status = XMLLightweightParser.INSIDE;
}
if (ch == '/') {
status = XMLLightweightParser.TAIL;
depth--;
} else if (ch == '!')
// This is a <! (comment) so ignore it
status = XMLLightweightParser.INSIDE;
else
depth++;
} else if (status == XMLLightweightParser.VERIFY_CLOSE_TAG) {
if (ch == '>') {
depth--;
status = XMLLightweightParser.OUTSIDE;
if (depth < 1) {
// Found a tag in the form <tag />
int end = buffer.length() - readByte + i + 1;
String msg = buffer.substring(startLastMsg, end);
// Add message to the list
foundMsg(msg);
startLastMsg = end;
}
} else if (ch == '<') {
status = XMLLightweightParser.PRETAIL;
insideChildrenTag = true;
} else
status = XMLLightweightParser.INSIDE;
} else if (status == XMLLightweightParser.INSIDE_PARAM_VALUE) {
if (ch == '"')
status = XMLLightweightParser.INSIDE;
} else if (status == XMLLightweightParser.INSIDE_CDATA) {
if (ch == XMLLightweightParser.CDATA_END[cdataOffset]) {
cdataOffset++;
if (cdataOffset == XMLLightweightParser.CDATA_END.length) {
status = XMLLightweightParser.OUTSIDE;
cdataOffset = 0;
}
} else
cdataOffset = 0;
} else if (status == XMLLightweightParser.INSIDE) {
if (ch == XMLLightweightParser.CDATA_START[cdataOffset]) {
cdataOffset++;
if (cdataOffset == XMLLightweightParser.CDATA_START.length) {
status = XMLLightweightParser.INSIDE_CDATA;
cdataOffset = 0;
continue;
}
} else {
cdataOffset = 0;
status = XMLLightweightParser.INSIDE;
}
if (ch == '"')
status = XMLLightweightParser.INSIDE_PARAM_VALUE;
else if (ch == '>') {
status = XMLLightweightParser.OUTSIDE;
if (insideRootTag
&& ("stream:stream>".equals(head.toString()) || "?xml>".equals(head.toString()) || "flash:stream>".equals(head
.toString()))) {
// Found closing stream:stream
int end = buffer.length() - readByte + i + 1;
// Skip LF, CR and other "weird" characters that could appear
while (startLastMsg < end && '<' != buffer.charAt(startLastMsg))
startLastMsg++;
String msg = buffer.substring(startLastMsg, end);
foundMsg(msg);
startLastMsg = end;
}
insideRootTag = false;
} else if (ch == '/')
status = XMLLightweightParser.VERIFY_CLOSE_TAG;
} else if (status == XMLLightweightParser.HEAD) {
if (ch == ' ' || ch == '>') {
// Append > to head to allow searching </tag>
head.append(">");
if (ch == '>')
status = XMLLightweightParser.OUTSIDE;
else
status = XMLLightweightParser.INSIDE;
insideRootTag = true;
insideChildrenTag = false;
continue;
} else if (ch == '/' && head.length() > 0) {
status = XMLLightweightParser.VERIFY_CLOSE_TAG;
depth--;
}
head.append(ch);
} else if (status == XMLLightweightParser.INIT) {
if (ch == '<') {
status = XMLLightweightParser.HEAD;
depth = 1;
} else
startLastMsg++;
} else if (status == XMLLightweightParser.OUTSIDE)
if (ch == '<') {
status = XMLLightweightParser.PRETAIL;
cdataOffset = 1;
insideChildrenTag = true;
}
}
if (head.length() > 0 && ("/stream:stream>".equals(head.toString()) || "/flash:stream>".equals(head.toString())))
// Found closing stream:stream
foundMsg("</stream:stream>");
} |
/*
* Main reading method
*/
public void read(final ByteBuffer byteBuffer) throws Exception {
invalidateBuffer();
// Check that the buffer is not bigger than 1 Megabyte. For security reasons
// we will abort parsing when 1 Mega of queued chars was found.
if (buffer.length() > maxBufferSize)
throw new Exception("Stopped parsing never ending stanza");
CharBuffer charBuffer = encoder.decode(byteBuffer);
char[] buf = charBuffer.array();
int readByte = charBuffer.remaining();
// Just return if nothing was read
if (readByte == 0)
return;
// Verify if the last received byte is an incomplete double byte character
char lastChar = buf[readByte - 1];
if (lastChar >= 0xfff0) {
// Rewind the position one place so the last byte stays in the buffer
// The missing byte should arrive in the next iteration. Once we have both
// of bytes we will have the correct character
byteBuffer.position(byteBuffer.position() - 1);
// Decrease the number of bytes read by one
readByte--;
// Just return if nothing was read
if (readByte == 0)
return;
}
buffer.append(buf, 0, readByte);
// Do nothing if the buffer only contains white spaces
if (buffer.charAt(0) <= ' ' && buffer.charAt(buffer.length() - 1) <= ' ')
if ("".equals(buffer.toString().trim())) {
// Empty the buffer so there is no memory leak
buffer.delete(0, buffer.length());
return;
}
// Robot.
char ch;
boolean isHighSurrogate = false;
for (int i = 0; i < readByte; i++) {
ch = buf[i];
if (ch < 0x20 && ch != 0x9 && ch != 0xA && ch != 0xD && ch != 0x0)
// Unicode characters in the range 0x0000-0x001F other than 9, A, and D are not allowed in XML
// We need to allow the NULL character, however, for Flash XMLSocket clients to work.
throw new Exception("Disallowed character");
if (isHighSurrogate) {
if (Character.isLowSurrogate(ch))
// Everything is fine. Clean up traces for surrogates
isHighSurrogate = false;
else
// Trigger error. Found high surrogate not followed by low surrogate
throw new Exception("Found high surrogate not followed by low surrogate");
} else if (Character.isHighSurrogate(ch))
isHighSurrogate = true;
else if (Character.isLowSurrogate(ch))
// Trigger error. Found low surrogate char without a preceding high surrogate
throw new Exception("Found low surrogate char without a preceding high surrogate");
if (status == XMLLightweightParser.TAIL) {
// Looking for the close tag
if (depth < 1 && ch == head.charAt(tailCount)) {
tailCount++;
if (tailCount == head.length()) {
// Close stanza found!
// Calculate the correct start,end position of the message into the buffer
int end = buffer.length() - readByte + i + 1;
String msg = buffer.substring(startLastMsg, end);
// Add message to the list
foundMsg(msg);
startLastMsg = end;
}
} else {
tailCount = 0;
status = XMLLightweightParser.INSIDE;
}
} else if (status == XMLLightweightParser.PRETAIL) {
if (ch == XMLLightweightParser.CDATA_START[cdataOffset]) {
cdataOffset++;
if (cdataOffset == XMLLightweightParser.CDATA_START.length) {
status = XMLLightweightParser.INSIDE_CDATA;
cdataOffset = 0;
continue;
}
} else {
cdataOffset = 0;
status = XMLLightweightParser.INSIDE;
}
if (ch == '/') {
status = XMLLightweightParser.TAIL;
depth--;
} else if (ch == '!')
// This is a <! (comment) so ignore it
status = XMLLightweightParser.INSIDE;
else
depth++;
} else if (status == XMLLightweightParser.VERIFY_CLOSE_TAG) {
if (ch == '>') {
depth--;
status = XMLLightweightParser.OUTSIDE;
if (depth < 1) {
// Found a tag in the form <tag />
int end = buffer.length() - readByte + i + 1;
String msg = buffer.substring(startLastMsg, end);
// Add message to the list
foundMsg(msg);
startLastMsg = end;
}
} else if (ch == '<') {
status = XMLLightweightParser.PRETAIL;
insideChildrenTag = true;
} else
status = XMLLightweightParser.INSIDE;
} else if (status == XMLLightweightParser.INSIDE_PARAM_VALUE) {
if (ch == '"')
status = XMLLightweightParser.INSIDE;
} else if (status == XMLLightweightParser.INSIDE_CDATA) {
if (ch == XMLLightweightParser.CDATA_END[cdataOffset]) {
cdataOffset++;
if (cdataOffset == XMLLightweightParser.CDATA_END.length) {
status = XMLLightweightParser.OUTSIDE;
cdataOffset = 0;
}
} else
cdataOffset = 0;
} else if (status == XMLLightweightParser.INSIDE) {
if (ch == XMLLightweightParser.CDATA_START[cdataOffset]) {
cdataOffset++;
if (cdataOffset == XMLLightweightParser.CDATA_START.length) {
status = XMLLightweightParser.INSIDE_CDATA;
cdataOffset = 0;
continue;
}
} else {
cdataOffset = 0;
status = XMLLightweightParser.INSIDE;
}
if (ch == '"')
status = XMLLightweightParser.INSIDE_PARAM_VALUE;
else if (ch == '>') {
status = XMLLightweightParser.OUTSIDE;
if (insideRootTag
&& ("stream:stream>".equals(head.toString()) || "?xml>".equals(head.toString()) || "flash:stream>".equals(head
.toString()))) {
// Found closing stream:stream
int end = buffer.length() - readByte + i + 1;
// Skip LF, CR and other "weird" characters that could appear
while (startLastMsg < end && '<' != buffer.charAt(startLastMsg))
startLastMsg++;
String msg = buffer.substring(startLastMsg, end);
foundMsg(msg);
startLastMsg = end;
}
insideRootTag = false;
} else if (ch == '/')
status = XMLLightweightParser.VERIFY_CLOSE_TAG;
} else if (status == XMLLightweightParser.HEAD) {
if (ch == ' ' || ch == '>') {
// Append > to head to allow searching </tag>
head.append(">");
if (ch == '>')
status = XMLLightweightParser.OUTSIDE;
else
status = XMLLightweightParser.INSIDE;
insideRootTag = true;
insideChildrenTag = false;
continue;
} else if (ch == '/' && head.length() > 0) {
status = XMLLightweightParser.VERIFY_CLOSE_TAG;
depth--;
}
head.append(ch);
} else if (status == XMLLightweightParser.INIT) {
if (ch == '<') {
status = XMLLightweightParser.HEAD;
depth = 1;
} else
startLastMsg++;
} else if (status == XMLLightweightParser.OUTSIDE)
if (ch == '<') {
status = XMLLightweightParser.PRETAIL;
cdataOffset = 1;
insideChildrenTag = true;
}
}
if (head.length() > 0 && ("/stream:stream>".equals(head.toString()) || "/flash:stream>".equals(head.toString())))
// Found closing stream:stream
foundMsg("</stream:stream>");
}
What does this code actually do?
This method is inside a LightWeightXMLParser. It reads data from a socket channel (java nio) and collects data until data is available on the channel. When a message is complete (fully formed XML), you can retrieve messages by invoking the getMsgs() method and you can invoke areThereMsgs() method to know if at least a message is presents.
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| /*
* @return an array with all messages found
*/
public String[] getMsgs() {
String[] res = new String[msgs.size()];
for (int i = 0; i < res.length; i++)
res[i] = msgs.get(i);
msgs.clear();
invalidateBuffer();
return res;
} |
/*
* @return an array with all messages found
*/
public String[] getMsgs() {
String[] res = new String[msgs.size()];
for (int i = 0; i < res.length; i++)
res[i] = msgs.get(i);
msgs.clear();
invalidateBuffer();
return res;
}
Following Tests might help you understand the code slightly better:
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| @Override
protected void setUp() throws Exception {
super.setUp();
// Create parser
parser = new LightWeightXMLParser(CHARSET);
// Crete byte buffer and append text
in = ByteBuffer.allocate(4096);
} |
@Override
protected void setUp() throws Exception {
super.setUp();
// Create parser
parser = new LightWeightXMLParser(CHARSET);
// Crete byte buffer and append text
in = ByteBuffer.allocate(4096);
}
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| @Override
protected void tearDown() throws Exception {
super.tearDown();
// Release byte buffer
in.clear();
} |
@Override
protected void tearDown() throws Exception {
super.tearDown();
// Release byte buffer
in.clear();
}
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| public void testHeader() throws Exception {
String msg1 = "<stream:stream to=\"localhost\" xmlns=\"jabber:client\" xmlns:stream=\"http://etherx.jabber.org/streams\" version=\"1.0\">";
in.put(msg1.getBytes());
in.flip();
// Fill parser with byte buffer content and parse it
parser.read(in);
// Make verifications
assertTrue("Stream header is not being correctly parsed", parser.areThereMsgs());
assertEquals("Wrong stanza was parsed", msg1, parser.getMsgs()[0]);
} |
public void testHeader() throws Exception {
String msg1 = "<stream:stream to=\"localhost\" xmlns=\"jabber:client\" xmlns:stream=\"http://etherx.jabber.org/streams\" version=\"1.0\">";
in.put(msg1.getBytes());
in.flip();
// Fill parser with byte buffer content and parse it
parser.read(in);
// Make verifications
assertTrue("Stream header is not being correctly parsed", parser.areThereMsgs());
assertEquals("Wrong stanza was parsed", msg1, parser.getMsgs()[0]);
}
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| public void testHeaderWithXMLVersion() throws Exception {
String msg1 = "<?xml version=\"1.0\"?>";
String msg2 = "<stream:stream to=\"localhost\" xmlns=\"jabber:client\" xmlns:stream=\"http://etherx.jabber.org/streams\" version=\"1.0\">";
in.put((msg1 + msg2).getBytes());
in.flip();
// Fill parser with byte buffer content and parse it
parser.read(in);
// Make verifications
assertTrue("Stream header is not being correctly parsed", parser.areThereMsgs());
String[] values = parser.getMsgs();
assertEquals("Wrong number of parsed stanzas", 2, values.length);
assertEquals("Wrong stanza was parsed", msg1, values[0]);
assertEquals("Wrong stanza was parsed", msg2, values[1]);
} |
public void testHeaderWithXMLVersion() throws Exception {
String msg1 = "<?xml version=\"1.0\"?>";
String msg2 = "<stream:stream to=\"localhost\" xmlns=\"jabber:client\" xmlns:stream=\"http://etherx.jabber.org/streams\" version=\"1.0\">";
in.put((msg1 + msg2).getBytes());
in.flip();
// Fill parser with byte buffer content and parse it
parser.read(in);
// Make verifications
assertTrue("Stream header is not being correctly parsed", parser.areThereMsgs());
String[] values = parser.getMsgs();
assertEquals("Wrong number of parsed stanzas", 2, values.length);
assertEquals("Wrong stanza was parsed", msg1, values[0]);
assertEquals("Wrong stanza was parsed", msg2, values[1]);
}
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| public void testStanzas() throws Exception {
String msg1 = "<stream:stream to=\"localhost\" xmlns=\"jabber:client\" xmlns:stream=\"http://etherx.jabber.org/streams\" version=\"1.0\">";
String msg2 = "<starttls xmlns=\"urn:ietf:params:xml:ns:xmpp-tls\"/>";
String msg3 = "<stream:stream to=\"localhost\" xmlns=\"jabber:client\" xmlns:stream=\"http://etherx.jabber.org/streams\" version=\"1.0\">";
String msg4 = "<iq id=\"428qP-0\" to=\"localhost\" type=\"get\"><query xmlns=\"jabber:iq:register\"></query></iq>";
String msg5 = "<stream:stream to=\"localhost\" xmlns=\"jabber:client\" xmlns:stream=\"http://etherx.jabber.org/streams\" version=\"1.0\">";
String msg6 = "<presence id=\"428qP-5\"></presence>";
in.put(msg1.getBytes());
in.put(msg2.getBytes());
in.put(msg3.getBytes());
in.put(msg4.getBytes());
in.put(msg5.getBytes());
in.put(msg6.getBytes());
in.flip();
// Fill parser with byte buffer content and parse it
parser.read(in);
// Make verifications
assertTrue("Stream header is not being correctly parsed", parser.areThereMsgs());
String[] values = parser.getMsgs();
assertEquals("Wrong number of parsed stanzas", 6, values.length);
assertEquals("Wrong stanza was parsed", msg1, values[0]);
assertEquals("Wrong stanza was parsed", msg2, values[1]);
assertEquals("Wrong stanza was parsed", msg3, values[2]);
assertEquals("Wrong stanza was parsed", msg4, values[3]);
assertEquals("Wrong stanza was parsed", msg5, values[4]);
assertEquals("Wrong stanza was parsed", msg6, values[5]);
} |
public void testStanzas() throws Exception {
String msg1 = "<stream:stream to=\"localhost\" xmlns=\"jabber:client\" xmlns:stream=\"http://etherx.jabber.org/streams\" version=\"1.0\">";
String msg2 = "<starttls xmlns=\"urn:ietf:params:xml:ns:xmpp-tls\"/>";
String msg3 = "<stream:stream to=\"localhost\" xmlns=\"jabber:client\" xmlns:stream=\"http://etherx.jabber.org/streams\" version=\"1.0\">";
String msg4 = "<iq id=\"428qP-0\" to=\"localhost\" type=\"get\"><query xmlns=\"jabber:iq:register\"></query></iq>";
String msg5 = "<stream:stream to=\"localhost\" xmlns=\"jabber:client\" xmlns:stream=\"http://etherx.jabber.org/streams\" version=\"1.0\">";
String msg6 = "<presence id=\"428qP-5\"></presence>";
in.put(msg1.getBytes());
in.put(msg2.getBytes());
in.put(msg3.getBytes());
in.put(msg4.getBytes());
in.put(msg5.getBytes());
in.put(msg6.getBytes());
in.flip();
// Fill parser with byte buffer content and parse it
parser.read(in);
// Make verifications
assertTrue("Stream header is not being correctly parsed", parser.areThereMsgs());
String[] values = parser.getMsgs();
assertEquals("Wrong number of parsed stanzas", 6, values.length);
assertEquals("Wrong stanza was parsed", msg1, values[0]);
assertEquals("Wrong stanza was parsed", msg2, values[1]);
assertEquals("Wrong stanza was parsed", msg3, values[2]);
assertEquals("Wrong stanza was parsed", msg4, values[3]);
assertEquals("Wrong stanza was parsed", msg5, values[4]);
assertEquals("Wrong stanza was parsed", msg6, values[5]);
}
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| public void testCompleteStanzas() throws Exception {
String msg1 = "<stream:stream to=\"localhost\" xmlns=\"jabber:client\" xmlns:stream=\"http://etherx.jabber.org/streams\" version=\"1.0\">";
String msg2 = "<starttls xmlns=\"urn:ietf:params:xml:ns:xmpp-tls\"/>";
String msg3 = "<stream:stream to=\"localhost\" xmlns=\"jabber:client\" xmlns:stream=\"http://etherx.jabber.org/streams\" version=\"1.0\">";
String msg4 = "<iq id=\"428qP-0\" to=\"localhost\" type=\"get\"><query xmlns=\"jabber:iq:register\"></query></iq>";
String msg5 = "<stream:stream to=\"localhost\" xmlns=\"jabber:client\" xmlns:stream=\"http://etherx.jabber.org/streams\" version=\"1.0\">";
String msg6 = "<presence id=\"428qP-5\"></presence>";
String msg7 = "</stream:stream>";
in.put(msg1.getBytes());
in.put(msg2.getBytes());
in.put(msg3.getBytes());
in.put(msg4.getBytes());
in.put(msg5.getBytes());
in.put(msg6.getBytes());
in.put(msg7.getBytes());
in.flip();
// Fill parser with byte buffer content and parse it
parser.read(in);
// Make verifications
assertTrue("Stream header is not being correctly parsed", parser.areThereMsgs());
String[] values = parser.getMsgs();
assertEquals("Wrong number of parsed stanzas", 7, values.length);
assertEquals("Wrong stanza was parsed", msg1, values[0]);
assertEquals("Wrong stanza was parsed", msg2, values[1]);
assertEquals("Wrong stanza was parsed", msg3, values[2]);
assertEquals("Wrong stanza was parsed", msg4, values[3]);
assertEquals("Wrong stanza was parsed", msg5, values[4]);
assertEquals("Wrong stanza was parsed", msg6, values[5]);
assertEquals("Wrong stanza was parsed", msg7, values[6]);
} |
public void testCompleteStanzas() throws Exception {
String msg1 = "<stream:stream to=\"localhost\" xmlns=\"jabber:client\" xmlns:stream=\"http://etherx.jabber.org/streams\" version=\"1.0\">";
String msg2 = "<starttls xmlns=\"urn:ietf:params:xml:ns:xmpp-tls\"/>";
String msg3 = "<stream:stream to=\"localhost\" xmlns=\"jabber:client\" xmlns:stream=\"http://etherx.jabber.org/streams\" version=\"1.0\">";
String msg4 = "<iq id=\"428qP-0\" to=\"localhost\" type=\"get\"><query xmlns=\"jabber:iq:register\"></query></iq>";
String msg5 = "<stream:stream to=\"localhost\" xmlns=\"jabber:client\" xmlns:stream=\"http://etherx.jabber.org/streams\" version=\"1.0\">";
String msg6 = "<presence id=\"428qP-5\"></presence>";
String msg7 = "</stream:stream>";
in.put(msg1.getBytes());
in.put(msg2.getBytes());
in.put(msg3.getBytes());
in.put(msg4.getBytes());
in.put(msg5.getBytes());
in.put(msg6.getBytes());
in.put(msg7.getBytes());
in.flip();
// Fill parser with byte buffer content and parse it
parser.read(in);
// Make verifications
assertTrue("Stream header is not being correctly parsed", parser.areThereMsgs());
String[] values = parser.getMsgs();
assertEquals("Wrong number of parsed stanzas", 7, values.length);
assertEquals("Wrong stanza was parsed", msg1, values[0]);
assertEquals("Wrong stanza was parsed", msg2, values[1]);
assertEquals("Wrong stanza was parsed", msg3, values[2]);
assertEquals("Wrong stanza was parsed", msg4, values[3]);
assertEquals("Wrong stanza was parsed", msg5, values[4]);
assertEquals("Wrong stanza was parsed", msg6, values[5]);
assertEquals("Wrong stanza was parsed", msg7, values[6]);
}
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| public void testIQ() throws Exception {
String iq = "<iq type=\"set\" to=\"lachesis\" from=\"0sups/Connection Worker - 1\" id=\"360-22348\"><session xmlns=\"http://jabber.org/protocol/connectionmanager\" id=\"0sups87b1694\"><close/></session></iq>";
in.put(iq.getBytes());
in.flip();
// Fill parser with byte buffer content and parse it
parser.read(in);
// Make verifications
assertTrue("Stream header is not being correctly parsed", parser.areThereMsgs());
String parsedIQ = parser.getMsgs()[0];
assertEquals("Wrong stanza was parsed", iq, parsedIQ);
} |
public void testIQ() throws Exception {
String iq = "<iq type=\"set\" to=\"lachesis\" from=\"0sups/Connection Worker - 1\" id=\"360-22348\"><session xmlns=\"http://jabber.org/protocol/connectionmanager\" id=\"0sups87b1694\"><close/></session></iq>";
in.put(iq.getBytes());
in.flip();
// Fill parser with byte buffer content and parse it
parser.read(in);
// Make verifications
assertTrue("Stream header is not being correctly parsed", parser.areThereMsgs());
String parsedIQ = parser.getMsgs()[0];
assertEquals("Wrong stanza was parsed", iq, parsedIQ);
}
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| public void testNestedElements() throws Exception {
String msg1 = "<message><message xmlns=\"e\">1</message></message>";
in.put(msg1.getBytes());
in.flip();
// Fill parser with byte buffer content and parse it
parser.read(in);
// Make verifications
assertTrue("Stream header is not being correctly parsed", parser.areThereMsgs());
String[] values = parser.getMsgs();
assertEquals("Wrong number of parsed stanzas", 1, values.length);
assertEquals("Wrong stanza was parsed", msg1, values[0]);
} |
public void testNestedElements() throws Exception {
String msg1 = "<message><message xmlns=\"e\">1</message></message>";
in.put(msg1.getBytes());
in.flip();
// Fill parser with byte buffer content and parse it
parser.read(in);
// Make verifications
assertTrue("Stream header is not being correctly parsed", parser.areThereMsgs());
String[] values = parser.getMsgs();
assertEquals("Wrong number of parsed stanzas", 1, values.length);
assertEquals("Wrong stanza was parsed", msg1, values[0]);
}
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| public void testIncompleteStanza() throws Exception {
String msg1 = "<message><something xmlns=\"http://idetalk.com/namespace\">12";
in.put(msg1.getBytes());
in.flip();
// Fill parser with byte buffer content and parse it
parser.read(in);
// Make verifications
assertFalse("Found messages in incomplete stanza", parser.areThereMsgs());
} |
public void testIncompleteStanza() throws Exception {
String msg1 = "<message><something xmlns=\"http://idetalk.com/namespace\">12";
in.put(msg1.getBytes());
in.flip();
// Fill parser with byte buffer content and parse it
parser.read(in);
// Make verifications
assertFalse("Found messages in incomplete stanza", parser.areThereMsgs());
}
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| public void testStanzaWithSpecialChars() throws Exception {
String msg1 = "<message><something xmlns=\"http://idetalk.com/namespace\">12/</something></message>";
String msg2 = "<message><something xmlns=\"http://idetalk.com/namespace\">12///</something></message>";
String msg3 = "<message><something xmlns=\"http://idetalk.com/namespace\">12/\\/</something></message>";
String msg4 = "<message><something xmlns=\"http://idetalk.com/namespace\">http://idetalk.com/namespace/</something></message>";
in.put(msg1.getBytes());
in.put(msg2.getBytes());
in.put(msg3.getBytes());
in.put(msg4.getBytes());
in.flip();
// Fill parser with byte buffer content and parse it
parser.read(in);
// Make verifications
assertTrue("No messages were found in stanza", parser.areThereMsgs());
String[] values = parser.getMsgs();
assertEquals("Wrong number of parsed stanzas", 4, values.length);
assertEquals("Wrong stanza was parsed", msg1, values[0]);
assertEquals("Wrong stanza was parsed", msg2, values[1]);
assertEquals("Wrong stanza was parsed", msg3, values[2]);
assertEquals("Wrong stanza was parsed", msg4, values[3]);
} |
public void testStanzaWithSpecialChars() throws Exception {
String msg1 = "<message><something xmlns=\"http://idetalk.com/namespace\">12/</something></message>";
String msg2 = "<message><something xmlns=\"http://idetalk.com/namespace\">12///</something></message>";
String msg3 = "<message><something xmlns=\"http://idetalk.com/namespace\">12/\\/</something></message>";
String msg4 = "<message><something xmlns=\"http://idetalk.com/namespace\">http://idetalk.com/namespace/</something></message>";
in.put(msg1.getBytes());
in.put(msg2.getBytes());
in.put(msg3.getBytes());
in.put(msg4.getBytes());
in.flip();
// Fill parser with byte buffer content and parse it
parser.read(in);
// Make verifications
assertTrue("No messages were found in stanza", parser.areThereMsgs());
String[] values = parser.getMsgs();
assertEquals("Wrong number of parsed stanzas", 4, values.length);
assertEquals("Wrong stanza was parsed", msg1, values[0]);
assertEquals("Wrong stanza was parsed", msg2, values[1]);
assertEquals("Wrong stanza was parsed", msg3, values[2]);
assertEquals("Wrong stanza was parsed", msg4, values[3]);
}
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| public void testCompletedStanza() throws Exception {
String msg1 = "<message><something xmlns=\"http://idetalk.com/namespace\">12";
in.put(msg1.getBytes());
in.flip();
// Fill parser with byte buffer content and parse it
parser.read(in);
// Make verifications
assertFalse("Found messages in incomplete stanza", parser.areThereMsgs());
String msg2 = "</something></message>";
ByteBuffer in2 = ByteBuffer.allocate(4096);
in2.put(msg2.getBytes());
in2.flip();
// Fill parser with byte buffer content and parse it
parser.read(in2);
in2.clear();
assertTrue("Stream header is not being correctly parsed", parser.areThereMsgs());
String[] values = parser.getMsgs();
assertEquals("Wrong number of parsed stanzas", 1, values.length);
assertEquals("Wrong stanza was parsed", msg1 + msg2, values[0]);
} |
public void testCompletedStanza() throws Exception {
String msg1 = "<message><something xmlns=\"http://idetalk.com/namespace\">12";
in.put(msg1.getBytes());
in.flip();
// Fill parser with byte buffer content and parse it
parser.read(in);
// Make verifications
assertFalse("Found messages in incomplete stanza", parser.areThereMsgs());
String msg2 = "</something></message>";
ByteBuffer in2 = ByteBuffer.allocate(4096);
in2.put(msg2.getBytes());
in2.flip();
// Fill parser with byte buffer content and parse it
parser.read(in2);
in2.clear();
assertTrue("Stream header is not being correctly parsed", parser.areThereMsgs());
String[] values = parser.getMsgs();
assertEquals("Wrong number of parsed stanzas", 1, values.length);
assertEquals("Wrong stanza was parsed", msg1 + msg2, values[0]);
}
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| public void testStanzaWithComments() throws Exception {
String msg1 = "<iq from=\"[email protected]/spark\"><query xmlns=\"jabber:iq:privacy\"><!-- silly comment --></query></iq>";
in.put(msg1.getBytes());
in.flip();
// Fill parser with byte buffer content and parse it
parser.read(in);
// Make verifications
assertTrue("No messages were found in stanza", parser.areThereMsgs());
String[] values = parser.getMsgs();
assertEquals("Wrong number of parsed stanzas", 1, values.length);
assertEquals("Wrong stanza was parsed", msg1, values[0]);
} |
public void testStanzaWithComments() throws Exception {
String msg1 = "<iq from=\"[email protected]/spark\"><query xmlns=\"jabber:iq:privacy\"><!-- silly comment --></query></iq>";
in.put(msg1.getBytes());
in.flip();
// Fill parser with byte buffer content and parse it
parser.read(in);
// Make verifications
assertTrue("No messages were found in stanza", parser.areThereMsgs());
String[] values = parser.getMsgs();
assertEquals("Wrong number of parsed stanzas", 1, values.length);
assertEquals("Wrong stanza was parsed", msg1, values[0]);
}
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| public void testWeirdoContent() throws Exception {
final String[] testStanzas = { "<?xml version=\"1.0\"?>",
"<stream:stream xmlns:stream=\"http://etherx.jabber.org/streams\" xmlns=\"jabber:client\" to=\"localhost\" >",
"<emppartag test=\"1\"/>", "<cdatatest><![CDATA[just<ignore everything& >>here<<<<< /> />]]>]]></cdatatest>",
"<esctest param=\"1\"> this \" is / a test /> test /> </esctest>",
"<comtest>this <!-- comment --> is a comment</comtest>", "<emptag/>",
"<iq type=\"get\" id=\"aab1a\" ><query xmlns=\"jabber:iq:roster\"/> <tag> text </tag></iq>",
"<iq type=\"get\" id=\"aab1a\" ><query xmlns=\"jabber:iq:roster\"/> </iq>",
"<message><body xmlns=\"http://idetalk.com/namespace\">12\"</body></message>",
"<message to=\"[email protected]\" id=\"XRk8p-X\"><body> /> /> </body></message>", };
String testMsg = "";
for (String s : testStanzas)
testMsg += s;
ByteBuffer mybuffer = ByteBuffer.wrap(testMsg.getBytes());
parser.read(mybuffer);
String[] msgs = parser.getMsgs();
for (int i = 0; i < testStanzas.length; i++) {
assertTrue(i < msgs.length);
assertEquals(testStanzas[i], msgs[i]);
}
} |
public void testWeirdoContent() throws Exception {
final String[] testStanzas = { "<?xml version=\"1.0\"?>",
"<stream:stream xmlns:stream=\"http://etherx.jabber.org/streams\" xmlns=\"jabber:client\" to=\"localhost\" >",
"<emppartag test=\"1\"/>", "<cdatatest><![CDATA[just<ignore everything& >>here<<<<< /> />]]>]]></cdatatest>",
"<esctest param=\"1\"> this \" is / a test /> test /> </esctest>",
"<comtest>this <!-- comment --> is a comment</comtest>", "<emptag/>",
"<iq type=\"get\" id=\"aab1a\" ><query xmlns=\"jabber:iq:roster\"/> <tag> text </tag></iq>",
"<iq type=\"get\" id=\"aab1a\" ><query xmlns=\"jabber:iq:roster\"/> </iq>",
"<message><body xmlns=\"http://idetalk.com/namespace\">12\"</body></message>",
"<message to=\"[email protected]\" id=\"XRk8p-X\"><body> /> /> </body></message>", };
String testMsg = "";
for (String s : testStanzas)
testMsg += s;
ByteBuffer mybuffer = ByteBuffer.wrap(testMsg.getBytes());
parser.read(mybuffer);
String[] msgs = parser.getMsgs();
for (int i = 0; i < testStanzas.length; i++) {
assertTrue(i < msgs.length);
assertEquals(testStanzas[i], msgs[i]);
}
}
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| public void testRead() {
try {
LightWeightXMLParser parser = new LightWeightXMLParser("UTF-8");
String xml1 = "<ab>\u1000</a";
String xml2 = "b>";
ByteBuffer buffer1 = ByteBuffer.wrap(xml1.getBytes("UTF-8"));
ByteBuffer buffer2 = ByteBuffer.wrap(xml2.getBytes("UTF-8"));
parser.read(buffer1);
parser.read(buffer2);
if (!parser.areThereMsgs())
Assert.fail("No messages found");
String msgs[] = parser.getMsgs();
if (msgs.length > 1)
Assert.fail("More than one message found");
else
Assert.assertEquals(xml1 + xml2, msgs[0]);
} catch (Exception e) {
Assert.fail(e.getMessage());
}
} |
public void testRead() {
try {
LightWeightXMLParser parser = new LightWeightXMLParser("UTF-8");
String xml1 = "<ab>\u1000</a";
String xml2 = "b>";
ByteBuffer buffer1 = ByteBuffer.wrap(xml1.getBytes("UTF-8"));
ByteBuffer buffer2 = ByteBuffer.wrap(xml2.getBytes("UTF-8"));
parser.read(buffer1);
parser.read(buffer2);
if (!parser.areThereMsgs())
Assert.fail("No messages found");
String msgs[] = parser.getMsgs();
if (msgs.length > 1)
Assert.fail("More than one message found");
else
Assert.assertEquals(xml1 + xml2, msgs[0]);
} catch (Exception e) {
Assert.fail(e.getMessage());
}
}
Feel free to download the full project source code.
This entry was posted
on Thursday, October 1st, 2009 at 3:33 AM and is filed under Design, Programming, Testing.
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