diff options
Diffstat (limited to 'kamon-core/src/main/scala/kamon/util/GlobPathFilter.scala')
-rw-r--r-- | kamon-core/src/main/scala/kamon/util/GlobPathFilter.scala | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/kamon-core/src/main/scala/kamon/util/GlobPathFilter.scala b/kamon-core/src/main/scala/kamon/util/GlobPathFilter.scala new file mode 100644 index 00000000..a980773f --- /dev/null +++ b/kamon-core/src/main/scala/kamon/util/GlobPathFilter.scala @@ -0,0 +1,44 @@ +/* + * ========================================================================================= + * Copyright © 2013-2014 the kamon project <http://kamon.io/> + * + * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file + * except in compliance with the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software distributed under the + * License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, + * either express or implied. See the License for the specific language governing permissions + * and limitations under the License. + * ========================================================================================= + */ + +package kamon.util + +import scala.util.matching.Regex + +class GlobPathFilter(glob: String) { + + val regex = globAsRegex(glob) + + def accept(path: String): Boolean = path.matches(regex.toString()) + + private def globAsRegex(glob: String): Regex = { + val regexStr = new StringBuilder('^') + + glob.foreach { + case '.' ⇒ regexStr append """\.""" + case '*' ⇒ regexStr append """[^/]*""" + case '?' ⇒ regexStr append """.""" + case ch ⇒ regexStr append ch + } + regexStr append """/?$""" + + new Regex(regexStr.toString()) + } +} + +object GlobPathFilter { + def apply(glob: String): GlobPathFilter = new GlobPathFilter(glob) +} |