David McNelis dmcnelis
dmcnelis
/ NewRelicTracingFuture.scala
Created
August 14, 2018 14:03
Scala New Relic Future Tracing Helper object for Async tracking
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| /** | |
| * Usage: | |
| * Instead of using: | |
| * val nrToken = NewRelic.getAgent.getTransaction.getToken | |
| * val future: Future[T] = Future { | |
| * nrToken.link | |
| * | |
| * } | |
| * nrToken.expire() | |
dmcnelis
/ silhouette_controller.scala
Created
February 25, 2015 17:15
Example of extending silhouette and overriding action
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| package controllers | |
| import helpers.SecureController | |
| trait AlwaysSecureController extends extends Silhouette[User,SessionAuthenticator] { | |
| def Action = SecuredAction | |
| } | |
| class TestAlwaysSecure @Inject() (implicit val env: Environment[User, SessionAuthenticator]) | |
| extends AlwaysSecureController { |
dmcnelis
/ ProtectedAssets.scala
Created
January 27, 2015 18:03
Example of how you might protect static assets -- Non -working
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| package controllers | |
| import com.google.inject.Inject | |
| import com.mohiva.play.silhouette.api.{Environment, Silhouette} | |
| import com.mohiva.play.silhouette.impl.User | |
| import com.mohiva.play.silhouette.impl.authenticators.SessionAuthenticator | |
| import play.api.mvc.{AnyContent, Action} | |
| import scala.concurrent.Future |
dmcnelis
/ gist:c5784a87667eec028689
Created
September 22, 2014 17:17
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| def my_dumb_scopes(): | |
| foo = None | |
| try: | |
| foo = "whatever" | |
| except: Exception as e: | |
| pass | |
| else: | |
| pass | |
| try: |
dmcnelis
/ gist:ce61c1ec4cede2de8e71
Created
September 22, 2014 17:10
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| def my_dumb_scopes(): | |
| try: | |
| foo = "whatever" | |
| except: Exception as e: | |
| pass | |
| else: | |
| pass | |
| try: | |
| this.causes_an_exception() |
dmcnelis
/ example.scala
Created
September 12, 2014 15:03
flatmap v. concatenated collections in scala
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| def function(i:Any) : Iteratable = { | |
| ...... | |
| } | |
| val firstSeq = Seq(.....) | |
| //this is much faster | |
| val flatMapped = firstSeq.flatMap(i => function(i)) | |
| //than this, which spends a TON of time in scala.collection.generic.Growable ++ | |
| var concatenatedSeq = Seq() |
dmcnelis
/ gist:9101834
Created
February 19, 2014 21:20
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| A = LOAD 'file1' using PigStorage(); | |
| e = FOREACH summedNewEvents { | |
| %declare limitKey key | |
| rolls = (LOAD 'hbase://myAggregateTable' USING org.apache.pig.backend.hadoop.hbase.HBaseStorage('data:count', '-loadKey true -caching 2500, -gt $A.$0, -lt $A.$1}') AS (key:chararray, numEvents:long)); | |
| existingNumEvents = FOREACH rolls GENERATE SUM($0); | |
| GENERATE key, existingNumEvents + numEvents; | |
| } |
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| --key: sometext|commonval data:date 2013-02-11,2013-05-24 | |
| table1 = LOAD 'hbase://table1' USING org.apache.pig.backend.hadoop.hbase.HBaseStorage('data:count' | |
| , '-loadKey true') AS (id:chararray, count:chararray); | |
| --key sometext|date|moretext|lasttext data:count 5 | |
| table2 = LOAD 'hbase://table2' USING org.apache.pig.backend.hadoop.hbase.HBaseStorage('data:dates' | |
| , '-loadKey true') AS (id:chararray, dates:chararray); | |
| table1 = foreach table1 generate STRSPLIT(id, '\\|') as key, STRSPLIT(dates, ',') as date; |
dmcnelis
/ gist:7260749
Created
November 1, 2013 03:53
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| def my_fun(): | |
| print "foo" | |
| from inspect import getargspec | |
| defaults = getargspec(my_fun).defaults | |
| len(defaults) | |
| Traceback (most recent call last): | |
| File "<stdin>", line 1, in <module> | |
| TypeError: object of type 'NoneType' has no len() | |
| def my_fun2(a="1"): |
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| FSReadError in /var/cassandra/data/et/http_request/ks-mycql3table-ic-1799-Data.db | |
| at org.apache.cassandra.io.compress.CompressedRandomAccessReader.reBuffer(CompressedRandomAccessReader.java:93) | |
| at org.apache.cassandra.io.util.RandomAccessReader.seek(RandomAccessReader.java:312) | |
| at org.apache.cassandra.io.sstable.SSTableScanner.seekTo(SSTableScanner.java:98) | |
| at org.apache.cassandra.db.RowIteratorFactory.getIterator(RowIteratorFactory.java:73) | |
| at org.apache.cassandra.db.ColumnFamilyStore.getSequentialIterator(ColumnFamilyStore.java:1424) | |
| at org.apache.cassandra.db.ColumnFamilyStore.getRangeSlice(ColumnFamilyStore.java:1476) | |
| at org.apache.cassandra.service.RangeSliceVerbHandler.executeLocally(RangeSliceVerbHandler.java:46) | |
| at org.apache.cassandra.service.RangeSliceVerbHandler.doVerb(RangeSliceVerbHandler.java:58) | |
| at org.apache.cassandra.net.MessageDeliveryTask.run(MessageDeliveryTask.java:56) |
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