Reduce config footprint

This commit is contained in:
Peter Vlugter 2011-03-08 20:29:50 +08:00
parent 06cc030847
commit dbe9e073bf
11 changed files with 201 additions and 1292 deletions

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@ -1,346 +0,0 @@
/**
* Copyright (C) 2009-2011 Scalable Solutions AB <http://scalablesolutions.se>
*
* Based on Configgy by Robey Pointer.
* Copyright 2009 Robey Pointer <robeypointer@gmail.com>
* http://www.apache.org/licenses/LICENSE-2.0
*/
package akka.config
import java.util.regex.Pattern
import scala.collection.{immutable, mutable, Map}
import scala.util.Sorting
import akka.config.string._
private[config] abstract class Cell
private[config] case class StringCell(value: String) extends Cell
private[config] case class AttributesCell(attr: Attributes) extends Cell
private[config] case class StringListCell(array: Array[String]) extends Cell
/**
* Actual implementation of ConfigMap.
* Stores items in Cell objects, and handles interpolation and key recursion.
*/
private[config] class Attributes(val config: Configuration, val name: String) extends ConfigMap {
private val cells = new mutable.HashMap[String, Cell]
var inheritFrom: Option[ConfigMap] = None
def this(config: Configuration, name: String, copyFrom: ConfigMap) = {
this(config, name)
copyFrom.copyInto(this)
}
def keys: Iterator[String] = cells.keysIterator
def getName() = name
override def toString() = {
val buffer = new StringBuilder("{")
buffer ++= name
buffer ++= (inheritFrom match {
case Some(a: Attributes) => " (inherit=" + a.name + ")"
case None => ""
})
buffer ++= ": "
for (key <- sortedKeys) {
buffer ++= key
buffer ++= "="
buffer ++= (cells(key) match {
case StringCell(x) => "\"" + x.quoteC + "\""
case AttributesCell(x) => x.toString
case StringListCell(x) => x.mkString("[", ",", "]")
})
buffer ++= " "
}
buffer ++= "}"
buffer.toString
}
override def equals(obj: Any) = {
if (! obj.isInstanceOf[Attributes]) {
false
} else {
val other = obj.asInstanceOf[Attributes]
(other.sortedKeys.toList == sortedKeys.toList) &&
(cells.keys forall (k => { cells(k) == other.cells(k) }))
}
}
/**
* Look up a value cell for a given key. If the key is compound (ie,
* "abc.xyz"), look up the first segment, and if it refers to an inner
* Attributes object, recursively look up that cell. If it's not an
* Attributes or it doesn't exist, return None. For a non-compound key,
* return the cell if it exists, or None if it doesn't.
*/
private def lookupCell(key: String): Option[Cell] = {
val elems = key.split("\\.", 2)
if (elems.length > 1) {
cells.get(elems(0)) match {
case Some(AttributesCell(x)) => x.lookupCell(elems(1))
case None => inheritFrom match {
case Some(a: Attributes) =>
a.lookupCell(key)
case _ => None
}
case _ => None
}
} else {
cells.get(elems(0)) match {
case x @ Some(_) => x
case None => inheritFrom match {
case Some(a: Attributes) => a.lookupCell(key)
case _ => None
}
}
}
}
/**
* Determine if a key is compound (and requires recursion), and if so,
* return the nested Attributes block and simple key that can be used to
* make a recursive call. If the key is simple, return None.
*
* If the key is compound, but nested Attributes objects don't exist
* that match the key, an attempt will be made to create the nested
* Attributes objects. If one of the key segments already refers to an
* attribute that isn't a nested Attribute object, a ConfigException
* will be thrown.
*
* For example, for the key "a.b.c", the Attributes object for "a.b"
* and the key "c" will be returned, creating the "a.b" Attributes object
* if necessary. If "a" or "a.b" exists but isn't a nested Attributes
* object, then an ConfigException will be thrown.
*/
@throws(classOf[ConfigException])
private def recurse(key: String): Option[(Attributes, String)] = {
val elems = key.split("\\.", 2)
if (elems.length > 1) {
val attr = (cells.get(elems(0)) match {
case Some(AttributesCell(x)) => x
case Some(_) => throw new ConfigException("Illegal key " + key)
case None => createNested(elems(0))
})
attr.recurse(elems(1)) match {
case ret @ Some((a, b)) => ret
case None => Some((attr, elems(1)))
}
} else {
None
}
}
def replaceWith(newAttributes: Attributes): Unit = {
// stash away subnodes and reinsert them.
val subnodes = for ((key, cell @ AttributesCell(_)) <- cells.toList) yield (key, cell)
cells.clear
cells ++= newAttributes.cells
for ((key, cell) <- subnodes) {
newAttributes.cells.get(key) match {
case Some(AttributesCell(newattr)) =>
cell.attr.replaceWith(newattr)
cells(key) = cell
case None =>
cell.attr.replaceWith(new Attributes(config, ""))
}
}
}
private def createNested(key: String): Attributes = {
val attr = new Attributes(config, if (name.equals("")) key else (name + "." + key))
cells(key) = new AttributesCell(attr)
attr
}
def getString(key: String): Option[String] = {
lookupCell(key) match {
case Some(StringCell(x)) => Some(x)
case Some(StringListCell(x)) => Some(x.toList.mkString("[", ",", "]"))
case _ => None
}
}
def getConfigMap(key: String): Option[ConfigMap] = {
lookupCell(key) match {
case Some(AttributesCell(x)) => Some(x)
case _ => None
}
}
def configMap(key: String): ConfigMap = makeAttributes(key, true)
private[config] def makeAttributes(key: String): Attributes = makeAttributes(key, false)
private[config] def makeAttributes(key: String, withInherit: Boolean): Attributes = {
if (key == "") {
return this
}
recurse(key) match {
case Some((attr, name)) =>
attr.makeAttributes(name, withInherit)
case None =>
val cell = if (withInherit) lookupCell(key) else cells.get(key)
cell match {
case Some(AttributesCell(x)) => x
case Some(_) => throw new ConfigException("Illegal key " + key)
case None => createNested(key)
}
}
}
def getList(key: String): Seq[String] = {
lookupCell(key) match {
case Some(StringListCell(x)) => x
case Some(StringCell(x)) => Array[String](x)
case _ => Array[String]()
}
}
def setString(key: String, value: String): Unit = {
recurse(key) match {
case Some((attr, name)) => attr.setString(name, value)
case None => cells.get(key) match {
case Some(AttributesCell(_)) => throw new ConfigException("Illegal key " + key)
case _ => cells.put(key, new StringCell(value))
}
}
}
def setList(key: String, value: Seq[String]): Unit = {
recurse(key) match {
case Some((attr, name)) => attr.setList(name, value)
case None => cells.get(key) match {
case Some(AttributesCell(_)) => throw new ConfigException("Illegal key " + key)
case _ => cells.put(key, new StringListCell(value.toArray))
}
}
}
def setConfigMap(key: String, value: ConfigMap): Unit = {
recurse(key) match {
case Some((attr, name)) => attr.setConfigMap(name, value)
case None =>
val subName = if (name == "") key else (name + "." + key)
cells.get(key) match {
case Some(AttributesCell(_)) =>
cells.put(key, new AttributesCell(new Attributes(config, subName, value)))
case None =>
cells.put(key, new AttributesCell(new Attributes(config, subName, value)))
case _ =>
throw new ConfigException("Illegal key " + key)
}
}
}
def contains(key: String): Boolean = {
recurse(key) match {
case Some((attr, name)) => attr.contains(name)
case None => cells.contains(key)
}
}
def remove(key: String): Boolean = {
recurse(key) match {
case Some((attr, name)) => attr.remove(name)
case None => {
cells.removeKey(key) match {
case Some(_) => true
case None => false
}
}
}
}
def asMap: Map[String, String] = {
var ret = immutable.Map.empty[String, String]
for ((key, value) <- cells) {
value match {
case StringCell(x) => ret = ret.update(key, x)
case StringListCell(x) => ret = ret.update(key, x.mkString("[", ",", "]"))
case AttributesCell(x) =>
for ((k, v) <- x.asMap) {
ret = ret.update(key + "." + k, v)
}
}
}
ret
}
def toConfigString: String = {
toConfigList().mkString("", "\n", "\n")
}
private def toConfigList(): List[String] = {
val buffer = new mutable.ListBuffer[String]
for (key <- Sorting.stableSort(cells.keys.toList)) {
cells(key) match {
case StringCell(x) =>
buffer += (key + " = \"" + x.quoteC + "\"")
case StringListCell(x) =>
buffer += (key + " = [")
buffer ++= x.map { " \"" + _.quoteC + "\"," }
buffer += "]"
case AttributesCell(node) =>
buffer += (key + node.inheritFrom.map { " (inherit=\"" + _.asInstanceOf[Attributes].name + "\")" }.getOrElse("") + " {")
buffer ++= node.toConfigList().map { " " + _ }
buffer += "}"
}
}
buffer.toList
}
// substitute "$(...)" strings with looked-up vars
// (and find "\$" and replace them with "$")
private val INTERPOLATE_RE = """(?<!\\)\$\((\w[\w\d\._-]*)\)|\\\$""".r
protected[config] def interpolate(root: Attributes, s: String): String = {
def lookup(key: String, path: List[ConfigMap]): String = {
path match {
case Nil => ""
case attr :: xs => attr.getString(key) match {
case Some(x) => x
case None => lookup(key, xs)
}
}
}
s.regexSub(INTERPOLATE_RE) { m =>
if (m.matched == "\\$") {
"$"
} else {
lookup(m.group(1), List(this, root, EnvironmentAttributes))
}
}
}
protected[config] def interpolate(key: String, s: String): String = {
recurse(key) match {
case Some((attr, name)) => attr.interpolate(this, s)
case None => interpolate(this, s)
}
}
// make a deep copy of the Attributes tree.
def copy(): Attributes = {
copyInto(new Attributes(config, name))
}
def copyInto[T <: ConfigMap](attr: T): T = {
inheritFrom match {
case Some(a: Attributes) => a.copyInto(attr)
case _ =>
}
for ((key, value) <- cells.elements) {
value match {
case StringCell(x) => attr(key) = x
case StringListCell(x) => attr(key) = x
case AttributesCell(x) => attr.setConfigMap(key, x.copy())
}
}
attr
}
}

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@ -52,64 +52,38 @@ object Config {
(envConf orElse systemConf).map("akka." + _ + ".conf").getOrElse("akka.conf") (envConf orElse systemConf).map("akka." + _ + ".conf").getOrElse("akka.conf")
} }
if (System.getProperty("akka.config", "") != "") { try {
val configFile = System.getProperty("akka.config", "") if (System.getProperty("akka.config", "") != "") {
try { val configFile = System.getProperty("akka.config", "")
Configure.configure(configFile) println("Loading config from -Dakka.config=" + configFile)
println("Config loaded from -Dakka.config=" + configFile) Configuration.fromFile(configFile)
} catch { } else if (getClass.getClassLoader.getResource(confName) ne null) {
case cause: ParseException => println("Loading config [" + confName + "] from the application classpath.")
val e = new ConfigurationException( Configuration.fromResource(confName, getClass.getClassLoader)
"Config could not be loaded from -Dakka.config=" + configFile + } else if (HOME.isDefined) {
"\n\tdue to: " + cause.toString)
EventHandler notifyListeners EventHandler.Error(e, this)
throw e
}
Configure.config
} else if (getClass.getClassLoader.getResource(confName) ne null) {
try {
Configure.configureFromResource(confName, getClass.getClassLoader)
println("Config [" + confName + "] loaded from the application classpath.")
} catch {
case cause: ParseException =>
val e = new ConfigurationException(
"Can't load '" + confName + "' config file from application classpath," +
"\n\tdue to: " + cause.toString)
EventHandler notifyListeners EventHandler.Error(e, this)
throw e
}
Configure.config
} else if (HOME.isDefined) {
try {
val configFile = HOME.get + "/config/" + confName val configFile = HOME.get + "/config/" + confName
Configure.configure(configFile) println("AKKA_HOME is defined as [" + HOME.get + "], loading config from [" + configFile + "].")
Configuration.fromFile(configFile)
} else {
println( println(
"AKKA_HOME is defined as [" + HOME.getOrElse(throwNoAkkaHomeException) + "\nCan't load '" + confName + "'." +
"], config loaded from [" + configFile + "].") "\nOne of the three ways of locating the '" + confName + "' file needs to be defined:" +
} catch { "\n\t1. Define the '-Dakka.config=...' system property option." +
case cause: ParseException => "\n\t2. Put the '" + confName + "' file on the classpath." +
val e = throw new ConfigurationException( "\n\t3. Define 'AKKA_HOME' environment variable pointing to the root of the Akka distribution." +
"AKKA_HOME is defined as [" + HOME.get + "] " + "\nI have no way of finding the '" + confName + "' configuration file." +
"\n\tbut the 'akka.conf' config file can not be found at [" + HOME.get + "/config/"+ confName + "]," + "\nUsing default values everywhere.")
"\n\tdue to: " + cause.toString) Configuration.fromString("<akka></akka>") // default empty config
EventHandler notifyListeners EventHandler.Error(e, this)
throw e
} }
Configure.config } catch {
} else { case e =>
println( EventHandler notifyListeners EventHandler.Error(e, this)
"\nCan't load '" + confName + "'." + throw e
"\nOne of the three ways of locating the '" + confName + "' file needs to be defined:" +
"\n\t1. Define the '-Dakka.config=...' system property option." +
"\n\t2. Put the '" + confName + "' file on the classpath." +
"\n\t3. Define 'AKKA_HOME' environment variable pointing to the root of the Akka distribution." +
"\nI have no way of finding the '" + confName + "' configuration file." +
"\nUsing default values everywhere.")
Configuration.fromString("<akka></akka>") // default empty config
} }
} }
val CONFIG_VERSION = config.getString("akka.version", VERSION) val CONFIG_VERSION = config.getString("akka.version", VERSION)
if (VERSION != CONFIG_VERSION) throw new ConfigurationException( if (VERSION != CONFIG_VERSION) throw new ConfigurationException(
"Akka JAR version [" + VERSION + "] is different than the provided config version [" + CONFIG_VERSION + "]") "Akka JAR version [" + VERSION + "] is different than the provided config version [" + CONFIG_VERSION + "]")
@ -117,9 +91,4 @@ object Config {
val startTime = System.currentTimeMillis val startTime = System.currentTimeMillis
def uptime = (System.currentTimeMillis - startTime) / 1000 def uptime = (System.currentTimeMillis - startTime) / 1000
def throwNoAkkaHomeException = throw new ConfigurationException(
"Akka home is not defined. Either:" +
"\n\t1. Define 'AKKA_HOME' environment variable pointing to the root of the Akka distribution." +
"\n\t2. Add the '-Dakka.home=...' option pointing to the root of the Akka distribution.")
} }

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@ -1,369 +0,0 @@
/**
* Copyright (C) 2009-2011 Scalable Solutions AB <http://scalablesolutions.se>
*
* Based on Configgy by Robey Pointer.
* Copyright 2009 Robey Pointer <robeypointer@gmail.com>
* http://www.apache.org/licenses/LICENSE-2.0
*/
package akka.config
import scala.collection.Map
import scala.util.Sorting
class ConfigException(reason: String) extends Exception(reason)
/**
* Abstract trait for a map of string keys to strings, string lists, or (nested) ConfigMaps.
* Integers and booleans may also be stored and retrieved, but they are converted to/from
* strings in the process.
*/
trait ConfigMap {
private val TRUE = "true"
private val FALSE = "false"
// ----- required methods
/**
* Lookup an entry in this map, and if it exists and can be represented
* as a string, return it. Strings will be returned as-is, and string
* lists will be returned as a combined string. Nested AttributeMaps
* will return None as if there was no entry present.
*/
def getString(key: String): Option[String]
/**
* Lookup an entry in this map, and if it exists and is a nested
* ConfigMap, return it. If the entry is a string or string list,
* it will return None as if there was no entry present.
*/
def getConfigMap(key: String): Option[ConfigMap]
/**
* Lookup an entry in this map, and if it exists and is a nested
* ConfigMap, return it. If not, create an empty map with this name
* and return that.
*
* @throws ConfigException if the key already refers to a string or
* string list
*/
def configMap(key: String): ConfigMap
/**
* Lookup an entry in this map, and if it exists and can be represented
* as a string list, return it. String lists will be returned as-is, and
* strings will be returned as an array of length 1. If the entry doesn't
* exist or is a nested ConfigMap, an empty sequence is returned.
*/
def getList(key: String): Seq[String]
/**
* Set a key/value pair in this map. If an entry already existed with
* that key, it's replaced.
*
* @throws ConfigException if the key already refers to a nested
* ConfigMap
*/
def setString(key: String, value: String): Unit
/**
* Set a key/value pair in this map. If an entry already existed with
* that key, it's replaced.
*
* @throws ConfigException if the key already refers to a nested
* ConfigMap
*/
def setList(key: String, value: Seq[String]): Unit
/**
* Put a nested ConfigMap inside this one. If an entry already existed with
* that key, it's replaced. The ConfigMap is deep-copied at insert-time.
*
* @throws ConfigException if the key already refers to a value that isn't
* a nested ConfigMap
*/
def setConfigMap(key: String, value: ConfigMap): Unit
/**
* Returns true if this map contains the given key.
*/
def contains(key: String): Boolean
/**
* Remove an entry with the given key, if it exists. Returns true if
* an entry was actually removed, false if not.
*/
def remove(key: String): Boolean
/**
* Return an iterator across the keys of this map.
*/
def keys: Iterator[String]
/**
* Return a new (immutable) map containing a deep copy of all the keys
* and values from this AttributeMap. Keys from nested maps will be
* compound (like `"inner.name"`).
*/
def asMap(): Map[String, String]
/**
* Make a deep copy of this ConfigMap. Any inheritance chains will be
* deep-copied, but the inheritance will not be preserved: the copied
* ConfigMap stands alone as its own set of objects, reflecting the
* frozen state of any inherited ConfigMaps.
*/
def copy(): ConfigMap
/**
* Make this ConfigMap inherit default values from another ConfigMap.
* Any attributes that aren't explicitly set will fall back to the inherited
* ConfigMap on lookup.
*/
def inheritFrom_=(config: Option[ConfigMap]): Unit
/**
* Return any ConfigMap that is used as a fall back on lookups.
*/
def inheritFrom: Option[ConfigMap]
// ----- convenience methods
/**
* If the requested key is present, return its value. Otherwise, return
* the given default value.
*/
def getString(key: String, defaultValue: String): String = {
getString(key) match {
case Some(x) => x
case None => defaultValue
}
}
/**
* If the requested key is present and can be converted into an int
* (via `String.toInt`), return that int. Otherwise, return `None`.
*/
def getInt(key: String): Option[Int] = {
getString(key) match {
case Some(x) => {
try {
Some(x.toInt)
} catch {
case _: NumberFormatException => None
}
}
case None => None
}
}
/**
* If the requested key is present and can be converted into an int
* (via `String.toInt`), return that int. Otherwise,
* return the given default value.
*/
def getInt(key: String, defaultValue: Int): Int = {
getInt(key) match {
case Some(n) => n
case None => defaultValue
}
}
/**
* If the requested key is present and can be converted into a long
* (via `String.toLong`), return that long. Otherwise, return `None`.
*/
def getLong(key: String): Option[Long] = {
getString(key) match {
case Some(x) => {
try {
Some(x.toLong)
} catch {
case _: NumberFormatException => None
}
}
case None => None
}
}
/**
* If the requested key is present and can be converted into a long
* (via `String.toLong`), return that long. Otherwise,
* return the given default value.
*/
def getLong(key: String, defaultValue: Long): Long = {
getLong(key) match {
case Some(n) => n
case None => defaultValue
}
}
/**
* If the requested key is present and can be converted into a double
* (via `String.toDouble`), return that double. Otherwise, return `None`.
*/
def getDouble(key: String): Option[Double] = {
getString(key) match {
case Some(x) => {
try {
Some(x.toDouble)
} catch {
case _: NumberFormatException => None
}
}
case None => None
}
}
/**
* If the requested key is present and can be converted into a double
* (via `String.toDouble`), return that double. Otherwise,
* return the given default value.
*/
def getDouble(key: String, defaultValue: Double): Double = {
getDouble(key) match {
case Some(n) => n
case None => defaultValue
}
}
/**
* If the requested key is present and can be converted into a bool
* (by being either `"true"` or `"false"`),
* return that bool. Otherwise, return `None`.
*/
def getBool(key: String): Option[Boolean] = {
getString(key) match {
case Some(x) =>
if (x != TRUE && x != FALSE) throw new ConfigException("invalid boolean value")
Some(x.equals(TRUE))
case None => None
}
}
/**
* If the requested key is present and can be converted into a bool
* (by being either `"true"` or `"false"`),
* return that bool. Otherwise, return the given default value.
*/
def getBool(key: String, defaultValue: Boolean): Boolean = {
getBool(key) match {
case Some(b) => b
case None => defaultValue
}
}
/**
* Set the given key to an int value, by converting it to a string
* first.
*/
def setInt(key: String, value: Int): Unit = setString(key, value.toString)
/**
* Set the given key to a long value, by converting it to a string
* first.
*/
def setLong(key: String, value: Long): Unit = setString(key, value.toString)
/**
* Set the given key to a double value, by converting it to a string
* first.
*/
def setDouble(key: String, value: Double): Unit = setString(key, value.toString)
/**
* Set the given key to a bool value, by converting it to a string
* first.
*/
def setBool(key: String, value: Boolean): Unit = {
setString(key, if (value) TRUE else FALSE)
}
/**
* Return the keys of this map, in sorted order.
*/
def sortedKeys() = {
// :( why does this have to be done manually?
val keys = this.keys.toList.toArray
Sorting.quickSort(keys)
keys
}
/**
* Convert this ConfigMap into a string which could be written into a config file.
*/
def toConfigString: String
def copyInto[T <: ConfigMap](configMap: T): T
def copyInto(obj: AnyRef) {
val cls = obj.getClass
//val log = Logger.get(cls)
val methods = cls.getMethods().filter { method =>
method.getName().endsWith("_$eq") && method.getParameterTypes().size == 1
}.toList
keys.foreach { key =>
val setters = methods.filter { _.getName() == key + "_$eq" }
/* if (setters.size == 0) {
log.warning("Ignoring config key '%s' which doesn't have a setter in class %s", key, cls)
}*/
setters.foreach { method =>
val expectedType = method.getParameterTypes().first.getCanonicalName
val param = expectedType match {
case "int" => getInt(key)
case "long" => getLong(key)
case "float" => getDouble(key).map { _.toFloat }
case "double" => getDouble(key)
case "boolean" => getBool(key)
case "java.lang.String" => getString(key)
case _ => None // ignore for now
}
param.map { p => method.invoke(obj, p.asInstanceOf[Object]) }
}
}
}
/**
* If the requested key is present, return its value as a string. Otherwise, throw a
* ConfigException. `toInt` and `toBoolean` may be called on the
* returned string if an int or bool is desired.
*/
def apply(key: String): String = getString(key) match {
case None => throw new ConfigException("undefined config: " + key)
case Some(v) => v
}
/** Equivalent to `getString(key, defaultValue)`. */
def apply(key: String, defaultValue: String) = getString(key, defaultValue)
/** Equivalent to `getInt(key, defaultValue)`. */
def apply(key: String, defaultValue: Int) = getInt(key, defaultValue)
/** Equivalent to `getLong(key, defaultValue)`. */
def apply(key: String, defaultValue: Long) = getLong(key, defaultValue)
/** Equivalent to `getBool(key, defaultValue)`. */
def apply(key: String, defaultValue: Boolean) = getBool(key, defaultValue)
/** Equivalent to `setString(key, value)`. */
def update(key: String, value: String) = setString(key, value)
/** Equivalent to `setInt(key, value)`. */
def update(key: String, value: Int) = setInt(key, value)
/** Equivalent to `setLong(key, value)`. */
def update(key: String, value: Long) = setLong(key, value)
/** Equivalent to `setBool(key, value)`. */
def update(key: String, value: Boolean) = setBool(key, value)
/** Equivalent to `setList(key, value)`. */
def update(key: String, value: Seq[String]) = setList(key, value)
/** Get the name of the current config map. */
def getName(): String
}

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@ -8,117 +8,68 @@
package akka.config package akka.config
import scala.collection.mutable.Stack import scala.collection.mutable
import scala.util.parsing.combinator._ import scala.util.parsing.combinator._
import scala.util.parsing.input.CharSequenceReader
import akka.config.string._
/** class ConfigParser(var prefix: String = "", map: mutable.Map[String, Any] = mutable.Map.empty[String, Any], importer: Importer) extends RegexParsers {
* An exception thrown when parsing a config file, if there was an error val sections = mutable.Stack[String]()
* during parsing. The `reason` string will contain the parsing
* error details.
*/
class ParseException(reason: String, cause: Throwable) extends Exception(reason, cause) {
def this(reason: String) = this(reason, null)
def this(cause: Throwable) = this(null, cause)
}
def createPrefix = {
prefix = if (sections.isEmpty) "" else sections.toList.reverse.mkString("", ".", ".")
}
private[config] class ConfigParser(var attr: Attributes, val importer: Importer) extends RegexParsers { override val whiteSpace = """(\s+|#[^\n]*\n)+""".r
val sections = new Stack[String]
var prefix = ""
// Stack reversed iteration order from 2.7 to 2.8!!
def sectionsString = sections.toList.reverse.mkString(".")
// tokens // tokens
override val whiteSpace = """(\s+|#[^\n]*\n)+""".r
val numberToken: Parser[String] = """-?\d+(\.\d+)?""".r val numberToken: Parser[String] = """-?\d+(\.\d+)?""".r
val stringToken: Parser[String] = ("\"" + """([^\\\"]|\\[^ux]|\\\n|\\u[0-9a-fA-F]{4}|\\x[0-9a-fA-F]{2})*""" + "\"").r val stringToken: Parser[String] = ("\"" + """([^\\\"]|\\[^ux]|\\\n|\\u[0-9a-fA-F]{4}|\\x[0-9a-fA-F]{2})*""" + "\"").r
val booleanToken: Parser[String] = "(true|on|false|off)".r
val identToken: Parser[String] = """([\da-zA-Z_][-\w]*)(\.[a-zA-Z_][-\w]*)*""".r val identToken: Parser[String] = """([\da-zA-Z_][-\w]*)(\.[a-zA-Z_][-\w]*)*""".r
val assignToken: Parser[String] = """=|\?=""".r val assignToken: Parser[String] = "=".r
val tagNameToken: Parser[String] = """[a-zA-Z][-\w]*""".r val sectionToken: Parser[String] = """[a-zA-Z][-\w]*""".r
// values
def root = rep(includeFile | includeOptFile | assignment | toggle | sectionOpen | sectionClose | def value: Parser[Any] = number | string | list | boolean
sectionOpenBrace | sectionCloseBrace) def number = numberToken
def string = stringToken ^^ { s => s.substring(1, s.length - 1) }
def list = "[" ~> repsep(string | numberToken, opt(",")) <~ (opt(",") ~ "]")
def boolean = booleanToken
// parser
def root = rep(includeFile | assignment | sectionOpen | sectionClose)
def includeFile = "include" ~> string ^^ { def includeFile = "include" ~> string ^^ {
case filename: String => case filename: String =>
new ConfigParser(attr.makeAttributes(sectionsString), importer) parse importer.importFile(filename) new ConfigParser(prefix, map, importer) parse importer.importFile(filename)
}
def includeOptFile = "include?" ~> string ^^ {
case filename: String =>
new ConfigParser(attr.makeAttributes(sections.mkString(".")), importer) parse importer.importFile(filename, false)
} }
def assignment = identToken ~ assignToken ~ value ^^ { def assignment = identToken ~ assignToken ~ value ^^ {
case k ~ a ~ v => if (a match { case k ~ a ~ v => map(prefix + k) = v
case "=" => true
case "?=" => ! attr.contains(prefix + k)
}) v match {
case x: Long => attr(prefix + k) = x
case x: String => attr(prefix + k) = x
case x: Array[String] => attr(prefix + k) = x
case x: Boolean => attr(prefix + k) = x
}
} }
def toggle = identToken ~ trueFalse ^^ { case k ~ v => attr(prefix + k) = v } def sectionOpen = sectionToken <~ "{" ^^ { name =>
def sectionOpen = "<" ~> tagNameToken ~ rep(tagAttribute) <~ ">" ^^ {
case name ~ attrList => openBlock(name, attrList)
}
def tagAttribute = opt(whiteSpace) ~> (tagNameToken <~ "=") ~ string ^^ { case k ~ v => (k, v) }
def sectionClose = "</" ~> tagNameToken <~ ">" ^^ { name => closeBlock(Some(name)) }
def sectionOpenBrace = tagNameToken ~ opt("(" ~> rep(tagAttribute) <~ ")") <~ "{" ^^ {
case name ~ attrListOption => openBlock(name, attrListOption.getOrElse(Nil))
}
def sectionCloseBrace = "}" ^^ { x => closeBlock(None) }
private def openBlock(name: String, attrList: List[(String, String)]) = {
val parent = if (sections.size > 0) attr.makeAttributes(sectionsString) else attr
sections push name sections push name
prefix = sectionsString + "." createPrefix
val newBlock = attr.makeAttributes(sectionsString)
for ((k, v) <- attrList) k match {
case "inherit" =>
newBlock.inheritFrom = Some(if (parent.getConfigMap(v).isDefined) parent.makeAttributes(v) else attr.makeAttributes(v))
case _ =>
throw new ParseException("Unknown block modifier")
}
} }
private def closeBlock(name: Option[String]) = { def sectionClose = "}" ^^ { _ =>
if (sections.isEmpty) { if (sections.isEmpty) {
failure("dangling close tag") failure("dangling close tag")
} else { } else {
val last = sections.pop sections.pop
if (name.isDefined && last != name.get) { createPrefix
failure("got closing tag for " + name.get + ", expected " + last)
} else {
prefix = if (sections.isEmpty) "" else sectionsString + "."
}
} }
} }
def parse(in: String): Map[String, Any] = {
def value: Parser[Any] = number | string | stringList | trueFalse
def number = numberToken ^^ { x => if (x.contains('.')) x else x.toLong }
def string = stringToken ^^ { s => attr.interpolate(prefix, s.substring(1, s.length - 1).unquoteC) }
def stringList = "[" ~> repsep(string | numberToken, opt(",")) <~ (opt(",") ~ "]") ^^ { list => list.toArray }
def trueFalse: Parser[Boolean] = ("(true|on)".r ^^ { x => true }) | ("(false|off)".r ^^ { x => false })
def parse(in: String): Unit = {
parseAll(root, in) match { parseAll(root, in) match {
case Success(result, _) => result case Success(result, _) => map.toMap
case x @ Failure(msg, z) => throw new ParseException(x.toString) case x @ Failure(msg, _) => throw new ConfigurationException(x.toString)
case x @ Error(msg, _) => throw new ParseException(x.toString) case x @ Error(msg, _) => throw new ConfigurationException(x.toString)
} }
} }
} }

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@ -9,148 +9,135 @@
package akka.config package akka.config
import java.io.File import java.io.File
import scala.collection.{Map, Set}
import scala.collection.{immutable, mutable}
class Configuration extends ConfigMap {
private var root = new Attributes(this, "")
private var reloadAction: Option[() => Unit] = None
/**
* Importer for resolving "include" lines when loading config files.
* By default, it's a FilesystemImporter based on the current working
* directory.
*/
var importer: Importer = new FilesystemImporter(new File(".").getCanonicalPath)
/**
* Read config data from a string and use it to populate this object.
*/
def load(data: String) {
reloadAction = Some(() => configure(data))
reload()
}
/**
* Read config data from a file and use it to populate this object.
*/
def loadFile(filename: String) {
reloadAction = Some(() => configure(importer.importFile(filename)))
reload()
}
/**
* Read config data from a file and use it to populate this object.
*/
def loadFile(path: String, filename: String) {
importer = new FilesystemImporter(path)
loadFile(filename)
}
/**
* Reloads the configuration from whatever source it was previously loaded
* from, undoing any in-memory changes. This is a no-op if the configuration
* data has not be loaded from a source (file or string).
*/
def reload() {
reloadAction.foreach(_())
}
private def configure(data: String) {
val newRoot = new Attributes(this, "")
new ConfigParser(newRoot, importer) parse data
root.replaceWith(newRoot)
}
override def toString = root.toString
// ----- implement AttributeMap by wrapping our root object:
def getString(key: String): Option[String] = root.getString(key)
def getConfigMap(key: String): Option[ConfigMap] = root.getConfigMap(key)
def configMap(key: String): ConfigMap = root.configMap(key)
def getList(key: String): Seq[String] = root.getList(key)
def setString(key: String, value: String): Unit = root.setString(key, value)
def setList(key: String, value: Seq[String]): Unit = root.setList(key, value)
def setConfigMap(key: String, value: ConfigMap): Unit = root.setConfigMap(key, value)
def contains(key: String): Boolean = root.contains(key)
def remove(key: String): Boolean = root.remove(key)
def keys: Iterator[String] = root.keys
def asMap(): Map[String, String] = root.asMap()
def toConfigString = root.toConfigString
def copy(): ConfigMap = root.copy()
def copyInto[T <: ConfigMap](m: T): T = root.copyInto(m)
def inheritFrom = root.inheritFrom
def inheritFrom_=(config: Option[ConfigMap]) = root.inheritFrom=(config)
def getName(): String = root.name
}
object Configuration { object Configuration {
/** val DefaultPath = new File(".").getCanonicalPath
* Create a configuration object from a config file of the given path val DefaultImporter = new FilesystemImporter(DefaultPath)
* and filename. The filename must be relative to the path. The path is
* used to resolve filenames given in "include" lines. def load(data: String, importer: Importer = DefaultImporter): Configuration = {
*/ val parser = new ConfigParser(importer = importer)
def fromFile(path: String, filename: String): Configuration = { new Configuration(parser parse data)
val config = new Configuration }
config.loadFile(path, filename)
config def fromFile(filename: String, importer: Importer): Configuration = {
load(importer.importFile(filename), importer)
}
def fromFile(path: String, filename: String): Configuration = {
val importer = new FilesystemImporter(path)
fromFile(filename, importer)
} }
/**
* Create a Configuration object from a config file of the given filename.
* The base folder will be extracted from the filename and used as a base
* path for resolving filenames given in "include" lines.
*/
def fromFile(filename: String): Configuration = { def fromFile(filename: String): Configuration = {
val n = filename.lastIndexOf('/') val n = filename.lastIndexOf('/')
if (n < 0) { if (n < 0) {
fromFile(new File(".").getCanonicalPath, filename) fromFile(DefaultPath, filename)
} else { } else {
fromFile(filename.substring(0, n), filename.substring(n + 1)) fromFile(filename.substring(0, n), filename.substring(n + 1))
} }
} }
/** def fromResource(filename: String): Configuration = {
* Create a Configuration object from the given named resource inside this jar fromResource(filename, ClassLoader.getSystemClassLoader)
* file, using the system class loader. "include" lines will also operate
* on resource paths.
*/
def fromResource(name: String): Configuration = {
fromResource(name, ClassLoader.getSystemClassLoader)
} }
/** def fromResource(filename: String, classLoader: ClassLoader): Configuration = {
* Create a Configuration object from the given named resource inside this jar val importer = new ResourceImporter(classLoader)
* file, using a specific class loader. "include" lines will also operate fromFile(filename, importer)
* on resource paths.
*/
def fromResource(name: String, classLoader: ClassLoader): Configuration = {
val config = new Configuration
config.importer = new ResourceImporter(classLoader)
config.loadFile(name)
config
} }
/** def fromMap(map: Map[String, Any]) = {
* Create a Configuration object from a map of String keys and String values. new Configuration(map)
*/
def fromMap(m: Map[String, String]) = {
val config = new Configuration
for ((k, v) <- m.elements) {
config(k) = v
}
config
} }
/**
* Create a Configuration object from a string containing a config file's contents.
*/
def fromString(data: String): Configuration = { def fromString(data: String): Configuration = {
val config = new Configuration load(data)
config.load(data) }
config }
class Configuration(val map: Map[String, Any]) {
private val trueValues = Set("true", "on")
private val falseValues = Set("false", "off")
def contains(key: String): Boolean = map contains key
def keys: Iterable[String] = map.keys
def getString(key: String): Option[String] = map.get(key).map(_.toString)
def getString(key: String, defaultValue: String): String = getString(key).getOrElse(defaultValue)
def getList(key: String): Seq[String] = map(key).asInstanceOf[Seq[String]]
def getInt(key: String): Option[Int] = {
try {
Some(map(key).toString.toInt)
} catch {
case _ => None
}
}
def getInt(key: String, defaultValue: Int): Int = getInt(key).getOrElse(defaultValue)
def getLong(key: String): Option[Long] = {
try {
Some(map(key).toString.toLong)
} catch {
case _ => None
}
}
def getLong(key: String, defaultValue: Long): Long = getLong(key).getOrElse(defaultValue)
def getFloat(key: String): Option[Float] = {
try {
Some(map(key).toString.toFloat)
} catch {
case _ => None
}
}
def getFloat(key: String, defaultValue: Float): Float = getFloat(key).getOrElse(defaultValue)
def getDouble(key: String): Option[Double] = {
try {
Some(map(key).toString.toDouble)
} catch {
case _ => None
}
}
def getDouble(key: String, defaultValue: Double): Double = getDouble(key).getOrElse(defaultValue)
def getBoolean(key: String): Option[Boolean] = {
getString(key) flatMap { s =>
val isTrue = trueValues.contains(s)
if (!isTrue && !falseValues.contains(s)) None
else Some(isTrue)
}
}
def getBoolean(key: String, defaultValue: Boolean): Boolean = getBool(key).getOrElse(defaultValue)
def getBool(key: String): Option[Boolean] = getBoolean(key)
def getBool(key: String, defaultValue: Boolean): Boolean = getBoolean(key, defaultValue)
def apply(key: String): String = getString(key) match {
case None => throw new ConfigurationException("undefined config: " + key)
case Some(v) => v
}
def apply(key: String, defaultValue: String) = getString(key, defaultValue)
def apply(key: String, defaultValue: Int) = getInt(key, defaultValue)
def apply(key: String, defaultValue: Long) = getLong(key, defaultValue)
def apply(key: String, defaultValue: Boolean) = getBool(key, defaultValue)
def getSection(name: String): Option[Configuration] = {
val l = name.length + 1
val m = map.collect { case (k, v) if k.startsWith(name) => (k.substring(l), v) }
if (m.isEmpty) None
else Some(new Configuration(m))
} }
} }

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@ -1,117 +0,0 @@
/**
* Copyright (C) 2009-2011 Scalable Solutions AB <http://scalablesolutions.se>
*
* Based on Configgy by Robey Pointer.
* Copyright 2009 Robey Pointer <robeypointer@gmail.com>
* http://www.apache.org/licenses/LICENSE-2.0
*/
package akka.config
import scala.util.matching.Regex
final class ConfigurationString(wrapped: String) {
/**
* For every section of a string that matches a regular expression, call
* a function to determine a replacement (as in python's
* `re.sub`). The function will be passed the Matcher object
* corresponding to the substring that matches the pattern, and that
* substring will be replaced by the function's result.
*
* For example, this call:
*
* "ohio".regexSub("""h.""".r) { m => "n" }
*
* will return the string `"ono"`.
*
* The matches are found using `Matcher.find()` and so
* will obey all the normal java rules (the matches will not overlap,
* etc).
*
* @param re the regex pattern to replace
* @param replace a function that takes Regex.MatchData objects and
* returns a string to substitute
* @return the resulting string with replacements made
*/
def regexSub(re: Regex)(replace: (Regex.MatchData => String)): String = {
var offset = 0
var out = new StringBuilder
for (m <- re.findAllIn(wrapped).matchData) {
if (m.start > offset) {
out.append(wrapped.substring(offset, m.start))
}
out.append(replace(m))
offset = m.end
}
if (offset < wrapped.length) {
out.append(wrapped.substring(offset))
}
out.toString
}
private val QUOTE_RE = "[\u0000-\u001f\u007f-\uffff\\\\\"]".r
/**
* Quote a string so that unprintable chars (in ASCII) are represented by
* C-style backslash expressions. For example, a raw linefeed will be
* translated into <code>"\n"</code>. Control codes (anything below 0x20)
* and unprintables (anything above 0x7E) are turned into either
* <code>"\xHH"</code> or <code>"\\uHHHH"</code> expressions, depending on
* their range. Embedded backslashes and double-quotes are also quoted.
*
* @return a quoted string, suitable for ASCII display
*/
def quoteC(): String = {
regexSub(QUOTE_RE) { m =>
m.matched.charAt(0) match {
case '\r' => "\\r"
case '\n' => "\\n"
case '\t' => "\\t"
case '"' => "\\\""
case '\\' => "\\\\"
case c =>
if (c <= 255) {
"\\x%02x".format(c.asInstanceOf[Int])
} else {
"\\u%04x" format c.asInstanceOf[Int]
}
}
}
}
// we intentionally don't unquote "\$" here, so it can be used to escape interpolation later.
private val UNQUOTE_RE = """\\(u[\dA-Fa-f]{4}|x[\dA-Fa-f]{2}|[/rnt\"\\])""".r
/**
* Unquote an ASCII string that has been quoted in a style like
* {@link #quoteC} and convert it into a standard unicode string.
* <code>"\\uHHHH"</code> and <code>"\xHH"</code> expressions are unpacked
* into unicode characters, as well as <code>"\r"</code>, <code>"\n"<code>,
* <code>"\t"</code>, <code>"\\"<code>, and <code>'\"'</code>.
*
* @return an unquoted unicode string
*/
def unquoteC() = {
regexSub(UNQUOTE_RE) { m =>
val ch = m.group(1).charAt(0) match {
// holy crap! this is terrible:
case 'u' => Character.valueOf(Integer.valueOf(m.group(1).substring(1), 16).asInstanceOf[Int].toChar)
case 'x' => Character.valueOf(Integer.valueOf(m.group(1).substring(1), 16).asInstanceOf[Int].toChar)
case 'r' => '\r'
case 'n' => '\n'
case 't' => '\t'
case x => x
}
ch.toString
}
}
}
object string {
implicit def stringToConfigurationString(s: String): ConfigurationString = new ConfigurationString(s)
}

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@ -1,41 +0,0 @@
/**
* Copyright (C) 2009-2011 Scalable Solutions AB <http://scalablesolutions.se>
*
* Based on Configgy by Robey Pointer.
* Copyright 2009 Robey Pointer <robeypointer@gmail.com>
* http://www.apache.org/licenses/LICENSE-2.0
*/
package akka.config
import java.io.File
object Configure {
private var _config: Configuration = null
def config = _config
def config_=(c: Configuration) {
_config = c
}
def configure(path: String, filename: String): Unit = {
config = Configuration.fromFile(path, filename)
}
def configure(filename: String): Unit = {
config = Configuration.fromFile(filename)
}
def configureFromResource(name: String) = {
config = Configuration.fromResource(name)
}
def configureFromResource(name: String, classLoader: ClassLoader) = {
config = Configuration.fromResource(name, classLoader)
}
def configureFromString(data: String) = {
config = Configuration.fromString(data)
}
}

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@ -1,83 +0,0 @@
/**
* Copyright (C) 2009-2011 Scalable Solutions AB <http://scalablesolutions.se>
*
* Based on Configgy by Robey Pointer.
* Copyright 2009 Robey Pointer <robeypointer@gmail.com>
* http://www.apache.org/licenses/LICENSE-2.0
*/
package akka.config
import java.net.InetAddress
import scala.collection.{immutable, mutable}
import scala.collection.JavaConversions
/**
* A ConfigMap that wraps the system environment. This is used as a
* fallback when looking up "$(...)" substitutions in config files.
*/
private[config] object EnvironmentAttributes extends ConfigMap {
private val env = immutable.Map.empty[String, String] ++ (JavaConversions.asMap(System.getenv()).elements)
// deal with java.util.Properties extending
// java.util.Hashtable[Object, Object] and not
// java.util.Hashtable[String, String]
private def getSystemProperties(): mutable.HashMap[String,String] = {
val map = new mutable.HashMap[String, String]
for (entry <- JavaConversions.asMap(System.getProperties()).elements) {
entry match {
case (k: String, v: String) => map.put(k, v)
case _ =>
}
}
map
}
def getName() = ""
def getString(key: String): Option[String] = {
getSystemProperties().get(key).orElse(env.get(key))
}
def getConfigMap(key: String): Option[ConfigMap] = None
def configMap(key: String): ConfigMap = error("not implemented")
def getList(key: String): Seq[String] = getString(key) match {
case None => Array[String]()
case Some(x) => Array[String](x)
}
def setString(key: String, value: String): Unit = error("read-only attributes")
def setList(key: String, value: Seq[String]): Unit = error("read-only attributes")
def setConfigMap(key: String, value: ConfigMap): Unit = error("read-only attributes")
def contains(key: String): Boolean = {
env.contains(key) || getSystemProperties().contains(key)
}
def remove(key: String): Boolean = error("read-only attributes")
def keys: Iterator[String] = (getSystemProperties().keySet ++ env.keySet).elements
def asMap(): Map[String, String] = error("not implemented")
def toConfigString = error("not implemented")
def copy(): ConfigMap = this
def copyInto[T <: ConfigMap](m: T) = m
def inheritFrom: Option[ConfigMap] = None
def inheritFrom_=(config: Option[ConfigMap]) = error("not implemented")
try {
val addr = InetAddress.getLocalHost
val ip = addr.getHostAddress
val dns = addr.getHostName
if (ip ne null) {
env("HOSTIP") = ip
}
if (dns ne null) {
env("HOSTNAME") = dns
}
} catch {
case _ => // pass
}
}

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@ -16,49 +16,28 @@ import java.io.{BufferedReader, File, FileInputStream, InputStream, InputStreamR
* parsing. This is used to handle `include` directives in config files. * parsing. This is used to handle `include` directives in config files.
*/ */
trait Importer { trait Importer {
/**
* Imports a requested file and returns the string contents of that file,
* if the file exists, and empty string if it does not exist and `required`
* is false.
*
* If the file couldn't be imported, throws a `ParseException`.
*/
@throws(classOf[ParseException])
def importFile(filename: String, required: Boolean): String
/** def importFile(filename: String): String
* Imports a requested file and returns the string contents of that file.
* If the file couldn't be imported, throws a `ParseException`.
*/
@throws(classOf[ParseException])
def importFile(filename: String): String = importFile(filename, true)
private val BUFFER_SIZE = 8192 private val BUFFER_SIZE = 8192
/**
* Exhaustively reads an InputStream and converts it into a String (using
* UTF-8 encoding). This is meant as a helper function for custom Importer
* classes.
*
* No exceptions are caught!
*/
protected def streamToString(in: InputStream): String = { protected def streamToString(in: InputStream): String = {
val reader = new BufferedReader(new InputStreamReader(in, "UTF-8"))
val buffer = new Array[Char](BUFFER_SIZE)
val out = new StringBuilder
var n = 0
while (n >= 0) {
n = reader.read(buffer, 0, buffer.length)
if (n >= 0) {
out.append(buffer, 0, n)
}
}
try { try {
val reader = new BufferedReader(new InputStreamReader(in, "UTF-8"))
val buffer = new Array[Char](BUFFER_SIZE)
val sb = new StringBuilder
var n = 0
while (n >= 0) {
n = reader.read(buffer, 0, buffer.length)
if (n >= 0) {
sb.appendAll(buffer, 0, n)
}
}
in.close() in.close()
sb.toString
} catch { } catch {
case _ => case x => throw new ConfigurationException(x.toString)
} }
out.toString
} }
} }
@ -67,21 +46,11 @@ trait Importer {
* An Importer that looks for imported config files in the filesystem. * An Importer that looks for imported config files in the filesystem.
* This is the default importer. * This is the default importer.
*/ */
class FilesystemImporter(val baseFolder: String) extends Importer { class FilesystemImporter(val baseDir: String) extends Importer {
def importFile(filename: String, required: Boolean): String = { def importFile(filename: String): String = {
var f = new File(filename) val f = new File(filename)
if (! f.isAbsolute) { val file = if (f.isAbsolute) f else new File(baseDir, filename)
f = new File(baseFolder, filename) streamToString(new FileInputStream(file))
}
if (!required && !f.exists) {
""
} else {
try {
streamToString(new FileInputStream(f))
} catch {
case x => throw new ParseException(x.toString)
}
}
} }
} }
@ -91,19 +60,8 @@ class FilesystemImporter(val baseFolder: String) extends Importer {
* of the system class loader (usually the jar used to launch this app). * of the system class loader (usually the jar used to launch this app).
*/ */
class ResourceImporter(classLoader: ClassLoader) extends Importer { class ResourceImporter(classLoader: ClassLoader) extends Importer {
def importFile(filename: String, required: Boolean): String = { def importFile(filename: String): String = {
try { val stream = classLoader.getResourceAsStream(filename)
val stream = classLoader.getResourceAsStream(filename) streamToString(stream)
if (stream eq null) {
if (required) {
throw new ParseException("Can't find resource: " + filename)
}
""
} else {
streamToString(stream)
}
} catch {
case x => throw new ParseException(x.toString)
}
} }
} }

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@ -9,7 +9,7 @@ import akka.actor.newUuid
import akka.config.Config._ import akka.config.Config._
import akka.util.{Duration,ReflectiveAccess} import akka.util.{Duration,ReflectiveAccess}
import akka.config.ConfigMap import akka.config.Configuration
import java.util.concurrent.TimeUnit import java.util.concurrent.TimeUnit
@ -57,7 +57,7 @@ object Dispatchers {
val MAILBOX_TYPE: MailboxType = if (MAILBOX_CAPACITY < 0) UnboundedMailbox() else BoundedMailbox() val MAILBOX_TYPE: MailboxType = if (MAILBOX_CAPACITY < 0) UnboundedMailbox() else BoundedMailbox()
lazy val defaultGlobalDispatcher = { lazy val defaultGlobalDispatcher = {
config.getConfigMap("akka.actor.default-dispatcher").flatMap(from).getOrElse(globalExecutorBasedEventDrivenDispatcher) config.getSection("akka.actor.default-dispatcher").flatMap(from).getOrElse(globalExecutorBasedEventDrivenDispatcher)
} }
object globalExecutorBasedEventDrivenDispatcher extends ExecutorBasedEventDrivenDispatcher("global", THROUGHPUT, THROUGHPUT_DEADLINE_TIME_MILLIS, MAILBOX_TYPE) object globalExecutorBasedEventDrivenDispatcher extends ExecutorBasedEventDrivenDispatcher("global", THROUGHPUT, THROUGHPUT_DEADLINE_TIME_MILLIS, MAILBOX_TYPE)
@ -155,7 +155,7 @@ object Dispatchers {
* or else use the supplied default dispatcher * or else use the supplied default dispatcher
*/ */
def fromConfig(key: String, default: => MessageDispatcher = defaultGlobalDispatcher): MessageDispatcher = def fromConfig(key: String, default: => MessageDispatcher = defaultGlobalDispatcher): MessageDispatcher =
config getConfigMap key flatMap from getOrElse default config getSection key flatMap from getOrElse default
/* /*
* Creates of obtains a dispatcher from a ConfigMap according to the format below * Creates of obtains a dispatcher from a ConfigMap according to the format below
@ -180,7 +180,7 @@ object Dispatchers {
* Throws: IllegalArgumentException if the value of "type" is not valid * Throws: IllegalArgumentException if the value of "type" is not valid
* IllegalArgumentException if it cannot * IllegalArgumentException if it cannot
*/ */
def from(cfg: ConfigMap): Option[MessageDispatcher] = { def from(cfg: Configuration): Option[MessageDispatcher] = {
cfg.getString("type") map { cfg.getString("type") map {
case "ExecutorBasedEventDriven" => new ExecutorBasedEventDrivenDispatcherConfigurator() case "ExecutorBasedEventDriven" => new ExecutorBasedEventDrivenDispatcherConfigurator()
case "ExecutorBasedEventDrivenWorkStealing" => new ExecutorBasedEventDrivenWorkStealingDispatcherConfigurator() case "ExecutorBasedEventDrivenWorkStealing" => new ExecutorBasedEventDrivenWorkStealingDispatcherConfigurator()
@ -203,11 +203,11 @@ object Dispatchers {
} }
object GlobalExecutorBasedEventDrivenDispatcherConfigurator extends MessageDispatcherConfigurator { object GlobalExecutorBasedEventDrivenDispatcherConfigurator extends MessageDispatcherConfigurator {
def configure(config: ConfigMap): MessageDispatcher = Dispatchers.globalExecutorBasedEventDrivenDispatcher def configure(config: Configuration): MessageDispatcher = Dispatchers.globalExecutorBasedEventDrivenDispatcher
} }
class ExecutorBasedEventDrivenDispatcherConfigurator extends MessageDispatcherConfigurator { class ExecutorBasedEventDrivenDispatcherConfigurator extends MessageDispatcherConfigurator {
def configure(config: ConfigMap): MessageDispatcher = { def configure(config: Configuration): MessageDispatcher = {
configureThreadPool(config, threadPoolConfig => new ExecutorBasedEventDrivenDispatcher( configureThreadPool(config, threadPoolConfig => new ExecutorBasedEventDrivenDispatcher(
config.getString("name", newUuid.toString), config.getString("name", newUuid.toString),
config.getInt("throughput", Dispatchers.THROUGHPUT), config.getInt("throughput", Dispatchers.THROUGHPUT),
@ -218,7 +218,7 @@ class ExecutorBasedEventDrivenDispatcherConfigurator extends MessageDispatcherCo
} }
class ExecutorBasedEventDrivenWorkStealingDispatcherConfigurator extends MessageDispatcherConfigurator { class ExecutorBasedEventDrivenWorkStealingDispatcherConfigurator extends MessageDispatcherConfigurator {
def configure(config: ConfigMap): MessageDispatcher = { def configure(config: Configuration): MessageDispatcher = {
configureThreadPool(config, threadPoolConfig => new ExecutorBasedEventDrivenWorkStealingDispatcher( configureThreadPool(config, threadPoolConfig => new ExecutorBasedEventDrivenWorkStealingDispatcher(
config.getString("name", newUuid.toString), config.getString("name", newUuid.toString),
config.getInt("throughput", Dispatchers.THROUGHPUT), config.getInt("throughput", Dispatchers.THROUGHPUT),
@ -226,4 +226,4 @@ class ExecutorBasedEventDrivenWorkStealingDispatcherConfigurator extends Message
mailboxType(config), mailboxType(config),
threadPoolConfig)).build threadPoolConfig)).build
} }
} }

View file

@ -6,7 +6,7 @@ package akka.dispatch
import java.util.concurrent._ import java.util.concurrent._
import atomic. {AtomicInteger, AtomicBoolean, AtomicReference, AtomicLong} import atomic. {AtomicInteger, AtomicBoolean, AtomicReference, AtomicLong}
import akka.config.ConfigMap import akka.config.Configuration
import akka.config.Config.TIME_UNIT import akka.config.Config.TIME_UNIT
import akka.util.{Duration, Switch, ReentrantGuard, HashCode, ReflectiveAccess} import akka.util.{Duration, Switch, ReentrantGuard, HashCode, ReflectiveAccess}
import java.util.concurrent.ThreadPoolExecutor.{AbortPolicy, CallerRunsPolicy, DiscardOldestPolicy, DiscardPolicy} import java.util.concurrent.ThreadPoolExecutor.{AbortPolicy, CallerRunsPolicy, DiscardOldestPolicy, DiscardPolicy}
@ -35,7 +35,7 @@ final case class FutureInvocation(future: CompletableFuture[Any], function: () =
def run = future complete (try { def run = future complete (try {
Right(function.apply) Right(function.apply)
} catch { } catch {
case e: Exception => case e: Exception =>
EventHandler notifyListeners EventHandler.Error(e, this) EventHandler notifyListeners EventHandler.Error(e, this)
Left(e) Left(e)
}) })
@ -209,16 +209,16 @@ trait MessageDispatcher {
* Trait to be used for hooking in new dispatchers into Dispatchers.fromConfig * Trait to be used for hooking in new dispatchers into Dispatchers.fromConfig
*/ */
abstract class MessageDispatcherConfigurator { abstract class MessageDispatcherConfigurator {
def configure(config: ConfigMap): MessageDispatcher def configure(config: Configuration): MessageDispatcher
def mailboxType(config: ConfigMap): MailboxType = { def mailboxType(config: Configuration): MailboxType = {
val capacity = config.getInt("mailbox-capacity", Dispatchers.MAILBOX_CAPACITY) val capacity = config.getInt("mailbox-capacity", Dispatchers.MAILBOX_CAPACITY)
// FIXME how do we read in isBlocking for mailbox? Now set to 'false'. // FIXME how do we read in isBlocking for mailbox? Now set to 'false'.
if (capacity < 0) UnboundedMailbox() if (capacity < 0) UnboundedMailbox()
else BoundedMailbox(false, capacity, Duration(config.getInt("mailbox-push-timeout-time", Dispatchers.MAILBOX_PUSH_TIME_OUT.toMillis.toInt), TIME_UNIT)) else BoundedMailbox(false, capacity, Duration(config.getInt("mailbox-push-timeout-time", Dispatchers.MAILBOX_PUSH_TIME_OUT.toMillis.toInt), TIME_UNIT))
} }
def configureThreadPool(config: ConfigMap, createDispatcher: => (ThreadPoolConfig) => MessageDispatcher): ThreadPoolConfigDispatcherBuilder = { def configureThreadPool(config: Configuration, createDispatcher: => (ThreadPoolConfig) => MessageDispatcher): ThreadPoolConfigDispatcherBuilder = {
import ThreadPoolConfigDispatcherBuilder.conf_? import ThreadPoolConfigDispatcherBuilder.conf_?
//Apply the following options to the config if they are present in the config //Apply the following options to the config if they are present in the config