SNRK-49: Added first version of local driver
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12
snark-storage-driver/snark-storage-driver.iml
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12
snark-storage-driver/snark-storage-driver.iml
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<?xml version="1.0" encoding="UTF-8"?>
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<module type="JAVA_MODULE" version="4">
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<component name="NewModuleRootManager" inherit-compiler-output="true">
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<exclude-output />
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<content url="file://$MODULE_DIR$">
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<sourceFolder url="file://$MODULE_DIR$/src/main/kotlin" isTestSource="false" />
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</content>
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<orderEntry type="inheritedJdk" />
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<orderEntry type="sourceFolder" forTests="false" />
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<orderEntry type="library" name="KotlinJavaRuntime" level="project" />
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</component>
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</module>
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package space.kscience.snark.storage.local
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import space.kscience.snark.storage.Directory
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import space.kscience.snark.storage.FileReader
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import space.kscience.snark.storage.FileWriter
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import java.io.File
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import java.nio.file.Path
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public class LocalFile(val path: String): FileReader, FileWriter{
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override fun close() {}
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override suspend fun readAll(): ByteArray = File(this.path).readBytes()
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override suspend fun write(bytes: ByteArray) = File(this.path).writeBytes(bytes)
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}
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public class LocalDirectory(val path: String): Directory {
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override fun close() {}
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override suspend fun get(filename: String): FileReader = LocalFile("${this.path}/$filename")
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override suspend fun create(filename: String, ignoreIfExists: Boolean) {
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if (!File(filename).createNewFile() && !ignoreIfExists) {
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throw UnsupportedOperationException("File already exists")
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}
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}
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override suspend fun put(filename: String): FileWriter = LocalFile("${this.path}/$filename")
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override suspend fun getSubdir(dirpath: Path): Directory = LocalDirectory("${this.path}/$dirpath")
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override suspend fun createSubdir(dirname: String, ignoreIfExists: Boolean) : Directory {
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if (!File(dirname).mkdir() && !ignoreIfExists) {
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throw UnsupportedOperationException("File already exists")
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}
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return this.getSubdir(File(dirname).toPath())
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}
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}
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