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Code Issues Projects Releases Packages Wiki Activity

make PackManager parameters configurable

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This commit is contained in:
Brian Gough 2015-06-03 10:35:36 +01:00
parent 2521c8f751
commit 19d812734e
1 changed files with 9 additions and 8 deletions
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17
services/track-changes/app/coffee/PackManager.coffee
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@ -252,15 +252,16 @@ module.exports = PackManager =
newResults.slice(0, limit) if limit?
return newResults
MAX_SIZE: 1024*1024 # make these configurable parameters
MAX_COUNT: 1024
MIN_COUNT: 100
KEEP_OPS: 100
convertDocsToPacks: (docs, callback) ->
MAX_SIZE = 1024*1024 # make these configurable parameters
MAX_COUNT = 1024
MIN_COUNT = 100
KEEP_OPS = 100
packs = []
top = null
# keep the last KEEP_OPS as individual ops
docs = docs.slice(0,-KEEP_OPS)
docs = docs.slice(0,-PackManager.KEEP_OPS)
docs.forEach (d,i) ->
# skip existing packs
@ -272,13 +273,13 @@ module.exports = PackManager =
top = null
return
sz = BSON.calculateObjectSize(d)
if top? && top.pack.length < MAX_COUNT && top.sz + sz < MAX_SIZE
if top? && top.pack.length < PackManager.MAX_COUNT && top.sz + sz < PackManager.MAX_SIZE
top.pack = top.pack.concat {v: d.v, meta: d.meta, op: d.op, _id: d._id}
top.sz += sz
top.v_end = d.v
top.meta.end_ts = d.meta.end_ts
return
else if sz < MAX_SIZE
else if sz < PackManager.MAX_SIZE
# create a new pack
top = _.clone(d)
top.pack = [ {v: d.v, meta: d.meta, op: d.op, _id: d._id} ]
@ -293,7 +294,7 @@ module.exports = PackManager =
# only store packs with a sufficient number of ops, discard others
packs = packs.filter (packObj) ->
packObj.pack.length > MIN_COUNT
packObj.pack.length > PackManager.MIN_COUNT
callback(null, packs)
checkHistory: (docs, callback) ->