public boolean equals(MessageBytes mb) {
switch (type) {
case T_STR:
return mb.equals(strValue);
}
if (mb.type != T_CHARS && mb.type != T_BYTES) {
// it's a string or int/date string value
return equals(mb.toString());
}
// mb is either CHARS or BYTES.
// this is either CHARS or BYTES
// Deal with the 4 cases ( in fact 3, one is simetric)
if (mb.type == T_CHARS && type == T_CHARS) {
return charC.equals(mb.charC);
}
if (mb.type == T_BYTES && type == T_BYTES) {
return byteC.equals(mb.byteC);
}
if (mb.type == T_CHARS && type == T_BYTES) {
return byteC.equals(mb.charC);
}
if (mb.type == T_BYTES && type == T_CHARS) {
return mb.byteC.equals(charC);
}
// can't happen
return true;
}
/**
* Set the encoding. If the object was constructed from bytes[]. any previous conversion is reset.
* If no encoding is set, we'll use 8859-1.
*/
public void setEncoding(String enc) {
if (!byteC.isNull()) {
// if the encoding changes we need to reset the converion results
charC.recycle();
hasStrValue = false;
}
byteC.setEncoding(enc);
}
/**
* Set the encoding. If the object was constructed from bytes[]. any previous conversion is reset.
* If no encoding is set, we'll use 8859-1.
*/
public void setCharset(Charset charset) {
if (!byteC.isNull()) {
// if the encoding changes we need to reset the conversion results
charC.recycle();
hasStrValue = false;
}
byteC.setCharset(charset);
}
/** Unimplemented yet. Do a char->byte conversion. */
public void toBytes() {
if (!byteC.isNull()) {
type = T_BYTES;
return;
}
toString();
type = T_BYTES;
byte bb[] = strValue.getBytes();
byteC.setBytes(bb, 0, bb.length);
}
/**
* Sets the content to the specified subarray of bytes.
*
* @param b the bytes
* @param off the start offset of the bytes
* @param len the length of the bytes
*/
public void setBytes(byte[] b, int off, int len) {
byteC.setBytes(b, off, len);
type = T_BYTES;
hasStrValue = false;
hasHashCode = false;
hasIntValue = false;
hasLongValue = false;
hasDateValue = false;
}
/**
* Returns the length of the original buffer. Note that the length in bytes may be different from
* the length in chars.
*/
public int getLength() {
if (type == T_BYTES) return byteC.getLength();
if (type == T_CHARS) {
return charC.getLength();
}
if (type == T_STR) return strValue.length();
toString();
if (strValue == null) return 0;
return strValue.length();
}
/** Copy the src into this MessageBytes, allocating more space if needed */
public void duplicate(MessageBytes src) throws IOException {
switch (src.getType()) {
case MessageBytes.T_BYTES:
type = T_BYTES;
ByteChunk bc = src.getByteChunk();
byteC.allocate(2 * bc.getLength(), -1);
byteC.append(bc);
break;
case MessageBytes.T_CHARS:
type = T_CHARS;
CharChunk cc = src.getCharChunk();
charC.allocate(2 * cc.getLength(), -1);
charC.append(cc);
break;
case MessageBytes.T_STR:
type = T_STR;
String sc = src.getString();
this.setString(sc);
break;
}
}
/**
* Returns true if the message bytes starts with the specified string.
*
* @param s the string
*/
public boolean startsWith(String s) {
switch (type) {
case T_STR:
return strValue.startsWith(s);
case T_CHARS:
return charC.startsWith(s);
case T_BYTES:
return byteC.startsWith(s);
default:
return false;
}
}
/**
* Returns true if the message bytes starts with the specified string.
*
* @param c the character
* @param starting The start position
*/
public int indexOf(char c, int starting) {
switch (type) {
case T_STR:
return strValue.indexOf(c, starting);
case T_CHARS:
return charC.indexOf(c, starting);
case T_BYTES:
return byteC.indexOf(c, starting);
default:
return -1;
}
}
/** Set the buffer to the representation of an long */
public void setLong(long l) {
byteC.allocate(32, 64);
long current = l;
byte[] buf = byteC.getBuffer();
int start = 0;
int end = 0;
if (l == 0) {
buf[end++] = (byte) '0';
}
if (l < 0) {
current = -l;
buf[end++] = (byte) '-';
}
while (current > 0) {
int digit = (int) (current % 10);
current = current / 10;
buf[end++] = HexUtils.HEX[digit];
}
byteC.setOffset(0);
byteC.setEnd(end);
// Inverting buffer
end--;
if (l < 0) {
start++;
}
while (end > start) {
byte temp = buf[start];
buf[start] = buf[end];
buf[end] = temp;
start++;
end--;
}
longValue = l;
hasStrValue = false;
hasHashCode = false;
hasIntValue = false;
hasLongValue = true;
hasDateValue = false;
type = T_BYTES;
}
/**
* Compares the message bytes to the specified String object.
*
* @param s the String to compare
* @return true if the comparison succeeded, false otherwise
*/
public boolean equalsIgnoreCase(String s) {
switch (type) {
case T_STR:
if (strValue == null && s != null) return false;
return strValue.equalsIgnoreCase(s);
case T_CHARS:
return charC.equalsIgnoreCase(s);
case T_BYTES:
return byteC.equalsIgnoreCase(s);
default:
return false;
}
}
/** Convert the buffer to an int, cache the value */
public int getInt() {
if (hasIntValue) return intValue;
switch (type) {
case T_BYTES:
intValue = byteC.getInt();
break;
default:
intValue = Integer.parseInt(toString());
}
hasIntValue = true;
return intValue;
}
/** Resets the message bytes to an uninitialized (NULL) state. */
public void recycle() {
type = T_NULL;
byteC.recycle();
charC.recycle();
strValue = null;
caseSensitive = true;
hasStrValue = false;
hasHashCode = false;
hasIntValue = false;
hasLongValue = false;
hasDateValue = false;
}
/** Convert the buffer to an long, cache the value */
public long getLong() {
if (hasLongValue) return longValue;
switch (type) {
case T_BYTES:
longValue = byteC.getLong();
break;
default:
longValue = Long.parseLong(toString());
}
hasLongValue = true;
return longValue;
}
/** Compute the string value */
public String toString() {
if (hasStrValue) return strValue;
switch (type) {
case T_CHARS:
strValue = charC.toString();
hasStrValue = true;
return strValue;
case T_BYTES:
strValue = byteC.toString();
hasStrValue = true;
return strValue;
}
return null;
}
// hash ignoring case
private int hashIgnoreCase() {
int code = 0;
switch (type) {
case T_STR:
for (int i = 0; i < strValue.length(); i++) {
code = code * 37 + Ascii.toLower(strValue.charAt(i));
}
return code;
case T_CHARS:
return charC.hashIgnoreCase();
case T_BYTES:
return byteC.hashIgnoreCase();
default:
return 0;
}
}
// normal hash.
private int hash() {
int code = 0;
switch (type) {
case T_STR:
// We need to use the same hash function
for (int i = 0; i < strValue.length(); i++) {
code = code * 37 + strValue.charAt(i);
}
return code;
case T_CHARS:
return charC.hash();
case T_BYTES:
return byteC.hash();
default:
return 0;
}
}
/**
* Returns true if the message bytes starts with the specified string.
*
* @param s the string
* @param pos The start position
*/
public boolean startsWithIgnoreCase(String s, int pos) {
switch (type) {
case T_STR:
if (strValue == null) return false;
if (strValue.length() < pos + s.length()) return false;
for (int i = 0; i < s.length(); i++) {
if (Ascii.toLower(s.charAt(i)) != Ascii.toLower(strValue.charAt(pos + i))) {
return false;
}
}
return true;
case T_CHARS:
return charC.startsWithIgnoreCase(s, pos);
case T_BYTES:
return byteC.startsWithIgnoreCase(s, pos);
default:
return false;
}
}
public boolean isNull() {
// should we check also hasStrValue ???
return byteC.isNull() && charC.isNull() && !hasStrValue;
// bytes==null && strValue==null;
}
