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/*
* Copyright 2019 ACINQ SAS
*
* 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 fr.acinq.eclair
import java.io.File
import java.net.{URL, URLClassLoader}
import org.clapper.classutil.ClassFinder
trait Plugin {
def onSetup(setup: Setup): Unit
def onKit(kit: Kit): Unit
}
object Plugin {
def loadPlugins(jars: Seq[File]): Seq[Plugin] = {
val finder = ClassFinder(jars)
val classes = finder.getClasses
val urls = jars.map(f => new URL(s"file:${f.getCanonicalPath}"))
val loader = new URLClassLoader(urls.toArray, ClassLoader.getSystemClassLoader)
classes
.filter(_.isConcrete)
.filter(_.implements(classOf[Plugin].getName))
.map(c => Class.forName(c.name, true, loader).getDeclaredConstructor().newInstance().asInstanceOf[Plugin])
.toList
}
}
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