org.klomp.snark.comments

Class CommentSet

java.lang.Object

java.util.AbstractCollection<E>

java.util.AbstractSet<Comment>

org.klomp.snark.comments.CommentSet

All Implemented Interfaces:

Iterable<Comment>, Collection<Comment>, Set<Comment>

public class CommentSet
extends AbstractSet<Comment>

Store comments.

Optimized for fast checking of duplicates, and retrieval of ratings. Removes are not really removed, only marked as hidden, so they don't reappear. Duplicates are detected based on an approximate time range. Max size of both elements and total text length is enforced.

Supports persistence via save() and File constructor.

NOT THREAD SAFE except for iterating AFTER the iterator() call.

Field Summary

Fields

Modifier and Type	Field and Description
static int	MAX_SIZE

Constructor Summary

Constructors

Constructor and Description
CommentSet(Collection<Comment> coll)
CommentSet(File file) File must be gzipped.

Method Summary

Modifier and Type	Method and Description
boolean	add(Comment c) Max length for strings enforced in Comment.java.
void	clear() Actually clears everything, including hidden.
double	getAverageRating()
long	getLatestCommentTime() Is not adjusted if the latest comment wasn't hidden but is then hidden.
int	getMyRating()
int	getRatingCount()
boolean	isModified()
Iterator<Comment>	iterator() Will be in reverse-sort order, i.e.
boolean	remove(int id) Remove the id as retrieved from Comment.getID().
boolean	remove(Object o) Only hides the comment, doesn't really remove it.
void	save(File file) File will be gzipped.
int	size() May be more than what the iterator returns, we do additional deduping in the iterator.

Methods inherited from class java.util.AbstractSet

equals, hashCode, removeAll

Methods inherited from class java.util.AbstractCollection

addAll, contains, containsAll, isEmpty, retainAll, toArray, toArray, toString

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface java.util.Set

addAll, contains, containsAll, isEmpty, retainAll, spliterator, toArray, toArray

Methods inherited from interface java.util.Collection

parallelStream, removeIf, stream

Methods inherited from interface java.lang.Iterable

forEach

Field Detail

MAX_SIZE

public static final int MAX_SIZE

See Also:

Constant Field Values

Constructor Detail

CommentSet

public CommentSet(Collection<Comment> coll)

CommentSet

public CommentSet(File file)
           throws IOException

File must be gzipped. Need not be sorted. See Comment.toPersistentString() for format.

Throws:

IOException

Method Detail

add

public boolean add(Comment c)

Max length for strings enforced in Comment.java. Max total length for strings enforced here. Enforces max size for set

Specified by:

add in interface Collection<Comment>

Specified by:

add in interface Set<Comment>

Overrides:

add in class AbstractCollection<Comment>

clear

public void clear()

Actually clears everything, including hidden. Resets ratings to zero.

Specified by:

clear in interface Collection<Comment>

Specified by:

clear in interface Set<Comment>

Overrides:

clear in class AbstractCollection<Comment>

getAverageRating

public double getAverageRating()

Returns:

0 if none, or 1-5

getLatestCommentTime

public long getLatestCommentTime()

Is not adjusted if the latest comment wasn't hidden but is then hidden.

Returns:

the timestamp of the most recent non-hidden comment

getMyRating

public int getMyRating()

Returns:

0 if none, or 1-5

getRatingCount

public int getRatingCount()

Returns:

Number of ratings making up the average rating

isModified

public boolean isModified()

Returns:

true if modified since instantiation

iterator

public Iterator<Comment> iterator()

Will be in reverse-sort order, i.e. newest-first. The returned iterator is thread-safe after this call. Changes after this call will not be reflected in the iterator. iter.remove() has no effect on the underlying set. Hidden comments not included.

Returned values may be less than indicated in size() due to additional deduping in the iterator.

Specified by:

iterator in interface Iterable<Comment>

Specified by:

iterator in interface Collection<Comment>

Specified by:

iterator in interface Set<Comment>

Specified by:

iterator in class AbstractCollection<Comment>

remove

public boolean remove(int id)

Remove the id as retrieved from Comment.getID(). Only hides the comment, doesn't really remove it. This is for the UI.

Returns:

true if present and not previously hidden

remove

public boolean remove(Object o)

Only hides the comment, doesn't really remove it.

Specified by:

remove in interface Collection<Comment>

Specified by:

remove in interface Set<Comment>

Overrides:

remove in class AbstractCollection<Comment>

Returns:

true if present and not previously hidden

save

public void save(File file)
          throws IOException

File will be gzipped. Not sorted, includes hidden. See Comment.toPersistentString() for format. Sets isModified() to false.

Throws:

IOException

size

public int size()

May be more than what the iterator returns, we do additional deduping in the iterator.

Specified by:

size in interface Collection<Comment>

Specified by:

size in interface Set<Comment>

Specified by:

size in class AbstractCollection<Comment>

Returns:

the non-hidden size