andreacavalli/netty5
1
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity

More JavaDoc

Browse Source
This commit is contained in:
Trustin Lee 2008-08-10 06:17:47 +00:00
parent cb88eb0aef
commit 80ab091c6e
1 changed files with 46 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

46
src/main/java/org/jboss/netty/buffer/ChannelBufferIndexFinder.java
View File

@ -24,6 +24,11 @@ package org.jboss.netty.buffer;
/**
* Locates an index of data in {@link ChannelBuffer}.
* <p>
* This interface enables the sequential search for the data which meets more
* complex and dynamic condition than just a simple value matching.
*
* @author The Netty Project (netty-dev@lists.jboss.org)
* @author Trustin Lee (tlee@redhat.com)
*
@ -33,44 +38,73 @@ package org.jboss.netty.buffer;
*/
public interface ChannelBufferIndexFinder {
/**
* Returns {@code true} if and only if the data is found at the specified
* {@code guessedIndex} of the specified {@code buffer}.
* <p>
* The implementation should not perform an operation which raises an
* exception such as {@link IndexOutOfBoundsException} nor perform
* an operation which modifies the content of the buffer.
*/
boolean find(ChannelBuffer buffer, int guessedIndex);
/**
* Index finder which locates a {@code NUL (0x00)} byte.
*/
static ChannelBufferIndexFinder NUL = new ChannelBufferIndexFinder() {
public boolean find(ChannelBuffer buffer, int guessedIndex) {
return buffer.getByte(guessedIndex) == 0;
}
};
/**
* Index finder which locates a non-{@code NUL (0x00)} byte.
*/
static ChannelBufferIndexFinder NOT_NUL = new ChannelBufferIndexFinder() {
public boolean find(ChannelBuffer buffer, int guessedIndex) {
return buffer.getByte(guessedIndex) != 0;
}
};
/**
* Index finder which locates a {@code CR ('\r')} byte.
*/
static ChannelBufferIndexFinder CR = new ChannelBufferIndexFinder() {
public boolean find(ChannelBuffer buffer, int guessedIndex) {
return buffer.getByte(guessedIndex) == '\r';
}
};
/**
* Index finder which locates a non-{@code CR ('\r')} byte.
*/
static ChannelBufferIndexFinder NOT_CR = new ChannelBufferIndexFinder() {
public boolean find(ChannelBuffer buffer, int guessedIndex) {
return buffer.getByte(guessedIndex) != '\r';
}
};
/**
* Index finder which locates a {@code LF ('\n')} byte.
*/
static ChannelBufferIndexFinder LF = new ChannelBufferIndexFinder() {
public boolean find(ChannelBuffer buffer, int guessedIndex) {
return buffer.getByte(guessedIndex) == '\n';
}
};
/**
* Index finder which locates a non-{@code LF ('\n')} byte.
*/
static ChannelBufferIndexFinder NOT_LF = new ChannelBufferIndexFinder() {
public boolean find(ChannelBuffer buffer, int guessedIndex) {
return buffer.getByte(guessedIndex) != '\n';
}
};
/**
* Index finder which locates a {@code CR ('\r')} or {@code LF ('\n')}.
*/
static ChannelBufferIndexFinder CRLF = new ChannelBufferIndexFinder() {
public boolean find(ChannelBuffer buffer, int guessedIndex) {
byte b = buffer.getByte(guessedIndex);
@ -78,6 +112,10 @@ public interface ChannelBufferIndexFinder {
}
};
/**
* Index finder which locates a byte which is neither a {@code CR ('\r')}
* nor a {@code LF ('\n')}.
*/
static ChannelBufferIndexFinder NOT_CRLF = new ChannelBufferIndexFinder() {
public boolean find(ChannelBuffer buffer, int guessedIndex) {
byte b = buffer.getByte(guessedIndex);
@ -85,6 +123,10 @@ public interface ChannelBufferIndexFinder {
}
};
/**
* Index finder which locates a linear whitespace
* ({@code ' '} and {@code '\t'}).
*/
static ChannelBufferIndexFinder LINEAR_WHITESPACE = new ChannelBufferIndexFinder() {
public boolean find(ChannelBuffer buffer, int guessedIndex) {
byte b = buffer.getByte(guessedIndex);
@ -92,6 +134,10 @@ public interface ChannelBufferIndexFinder {
}
};
/**
* Index finder which locates a byte which is not a linear whitespace
* (neither {@code ' '} nor {@code '\t'}).
*/
static ChannelBufferIndexFinder NOT_LINEAR_WHITESPACE = new ChannelBufferIndexFinder() {
public boolean find(ChannelBuffer buffer, int guessedIndex) {
byte b = buffer.getByte(guessedIndex);