org.apache.tomcat.util.buf
Class MessageBytes

java.lang.Object
  org.apache.tomcat.util.buf.MessageBytes

All Implemented Interfaces:

java.io.Serializable, java.lang.Cloneable

public final class MessageBytes
extends java.lang.Object
implements java.lang.Cloneable, java.io.Serializable

This class is used to represent a subarray of bytes in an HTTP message. It represents all request/response elements. The byte/char conversions are delayed and cached. Everything is recyclable. The object can represent a byte[], a char[], or a (sub) String. All operations can be made in case sensitive mode or not.

Author:

dac@eng.sun.com, James Todd [gonzo@eng.sun.com], Costin Manolache

See Also:

Serialized Form

T_NULL

public static final int T_NULL

See Also:

Constant Field Values

T_STR

public static final int T_STR

getType() is T_STR if the the object used to create the MessageBytes was a String

See Also:

Constant Field Values

T_BYTES

public static final int T_BYTES

getType() is T_BYTES if the the object used to create the MessageBytes was a byte[]

See Also:

Constant Field Values

T_CHARS

public static final int T_CHARS

getType() is T_CHARS if the the object used to create the MessageBytes was a char[]

See Also:

Constant Field Values

MessageBytes

public MessageBytes()

Deprecated. Use static newInstance() in order to allow future hooks.

Creates a new, uninitialized MessageBytes object.

newInstance

public static MessageBytes newInstance()

Construct a new MessageBytes instance

setCaseSenitive

public void setCaseSenitive(boolean b)

Configure the case sensitivity

getClone

public MessageBytes getClone()

isNull

public boolean isNull()

recycle

public void recycle()

Resets the message bytes to an uninitialized (NULL) state.

setBytes

public void setBytes(byte[] b,
                     int off,
                     int len)

Sets the content to the specified subarray of bytes.

Parameters:

b - the bytes

off - the start offset of the bytes

len - the length of the bytes

setChars

public void setChars(char[] c,
                     int off,
                     int len)

Sets the content to be a char[]

Parameters:

c - the bytes

off - the start offset of the bytes

len - the length of the bytes

resetStringValue

public void resetStringValue()

Remove the cached string value. Use it after a conversion on the byte[] or after the encoding is changed XXX Is this needed ?

setString

public void setString(java.lang.String s)

Set the content to be a string

toString

public java.lang.String toString()

Compute the string value

Overrides:

toString in class java.lang.Object

getType

public int getType()

Return the type of the original content. Can be T_STR, T_BYTES, T_CHARS or T_NULL

getByteChunk

public ByteChunk getByteChunk()

Returns the byte chunk, representing the byte[] and offset/length. Valid only if T_BYTES or after a conversion was made.

getCharChunk

public CharChunk getCharChunk()

Returns the char chunk, representing the char[] and offset/length. Valid only if T_CHARS or after a conversion was made.

getString

public java.lang.String getString()

Returns the string value. Valid only if T_STR or after a conversion was made.

getCharset

public java.nio.charset.Charset getCharset()

Get the Charset used for string<->byte conversions.

setCharset

public void setCharset(java.nio.charset.Charset charset)

Set the Charset used for string<->byte conversions.

toBytes

public void toBytes()

Do a char->byte conversion.

toChars

public void toChars()

Convert to char[] and fill the CharChunk. XXX Not optimized - it converts to String first.

getLength

public int getLength()

Returns the length of the original buffer. Note that the length in bytes may be different from the length in chars.

equals

public boolean equals(java.lang.String s)

Compares the message bytes to the specified String object.

Parameters:

s - the String to compare

Returns:

true if the comparison succeeded, false otherwise

equalsIgnoreCase

public boolean equalsIgnoreCase(java.lang.String s)

Compares the message bytes to the specified String object.

Parameters:

s - the String to compare

Returns:

true if the comparison succeeded, false otherwise

equals

public boolean equals(MessageBytes mb)

startsWith

public boolean startsWith(java.lang.String s)

Returns true if the message bytes starts with the specified string.

Parameters:

s - the string

startsWithIgnoreCase

public boolean startsWithIgnoreCase(java.lang.String s,
                                    int pos)

Returns true if the message bytes starts with the specified string.

Parameters:

s - the string

pos - The start position

hashCode

public int hashCode()

Overrides:

hashCode in class java.lang.Object

indexOf

public int indexOf(char c)

indexOf

public int indexOf(java.lang.String s,
                   int starting)

indexOf

public int indexOf(java.lang.String s)

indexOfIgnoreCase

public int indexOfIgnoreCase(java.lang.String s,
                             int starting)

indexOf

public int indexOf(char c,
                   int starting)

Returns true if the message bytes starts with the specified string.

Parameters:

c - the character

starting - The start position

duplicate

public void duplicate(MessageBytes src)
               throws java.io.IOException

Copy the src into this MessageBytes, allocating more space if needed

Throws:

java.io.IOException

setTime

public void setTime(long t,
                    java.text.DateFormat df)

Deprecated. The buffer are general purpose, caching for headers should be done in headers. The second parameter allows us to pass a date format instance to avoid synchronization problems.

setTime

public void setTime(long t)

Deprecated. 

setInt

public void setInt(int i)

Set the buffer to the representation of an int

setLong

public void setLong(long l)

Set the buffer to the representation of an long

getTime

public long getTime()

Deprecated. The buffer are general purpose, caching for headers should be done in headers

getInt

public int getInt()

Convert the buffer to an int, cache the value

getLong

public long getLong()

Convert the buffer to an long, cache the value

setFactory

public static void setFactory(MessageBytes.MessageBytesFactory mbf)