com.jetbrains.plugin.structure.jar.UriJarFileSystemProvider.kt Maven / Gradle / Ivy

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Base library for parsing JetBrains plugins. Used by other JetBrains Plugins structure libraries.

There is a newer version: 3.290

package com.jetbrains.plugin.structure.jar

import com.jetbrains.plugin.structure.base.utils.isJar
import com.jetbrains.plugin.structure.base.utils.isZip
import org.slf4j.Logger
import org.slf4j.LoggerFactory
import java.net.URI
import java.nio.file.FileSystem
import java.nio.file.FileSystemNotFoundException
import java.nio.file.FileSystems
import java.nio.file.Path

class UriJarFileSystemProvider(private val pathToUri: (Path) -> URI = { it.toUri() }) : JarFileSystemProvider {
  private val log: Logger = LoggerFactory.getLogger(UriJarFileSystemProvider::class.java)

  @Throws(JarArchiveCannotBeOpenException::class)
  override fun getFileSystem(jarPath: Path): FileSystem {
    val jarUri = pathToUri(jarPath)
    return try {
      if (!jarPath.isZip() && !jarPath.isJar()) {
        throw JarArchiveCannotBeOpenException(jarPath, "must end with '.zip' or '.jar'")
      }
      try {
        FileSystems.getFileSystem(jarUri).also {
          log.debug("Reusing JAR filesystem from JVM cache <{}>", jarUri)
        }
      } catch (e: FileSystemNotFoundException) {
        FileSystems.newFileSystem(jarUri, emptyMap()).also {
          log.debug("JAR filesystem not found. Creating a new one for <{}>", jarUri)
        }
      }
    } catch (e: JarArchiveCannotBeOpenException) {
      throw e
    } catch (e: Throwable) {
      throw JarArchiveCannotBeOpenException(jarUri, e)
    }
  }

  override fun close(jarPath: Path) {
    // do nothing
  }
}