| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you 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 org.apache.beam.sdk.io; |
| |
| import static java.nio.channels.Channels.newInputStream; |
| import static org.junit.Assert.assertArrayEquals; |
| import static org.junit.Assert.assertEquals; |
| |
| import java.io.IOException; |
| import java.io.InputStream; |
| import java.nio.channels.ReadableByteChannel; |
| import org.apache.beam.sdk.io.fs.ResolveOptions; |
| import org.apache.beam.sdk.options.PipelineOptionsFactory; |
| import org.junit.Test; |
| import org.junit.runner.RunWith; |
| import org.junit.runners.JUnit4; |
| |
| @RunWith(JUnit4.class) |
| public class ClassLoaderFileSystemTest { |
| |
| private static final String SOME_CLASS = |
| "classpath://org/apache/beam/sdk/io/ClassLoaderFileSystem.class"; |
| |
| @Test |
| public void testOpen() throws IOException { |
| ClassLoaderFileSystem filesystem = new ClassLoaderFileSystem(); |
| ReadableByteChannel channel = filesystem.open(filesystem.matchNewResource(SOME_CLASS, false)); |
| checkIsClass(channel); |
| } |
| |
| @Test |
| public void testRegistrar() throws IOException { |
| ReadableByteChannel channel = FileSystems.open(FileSystems.matchNewResource(SOME_CLASS, false)); |
| checkIsClass(channel); |
| } |
| |
| @Test |
| public void testResolve() throws IOException { |
| ClassLoaderFileSystem filesystem = new ClassLoaderFileSystem(); |
| ClassLoaderFileSystem.ClassLoaderResourceId original = |
| filesystem.matchNewResource(SOME_CLASS, false); |
| ClassLoaderFileSystem.ClassLoaderResourceId parent = original.getCurrentDirectory(); |
| ClassLoaderFileSystem.ClassLoaderResourceId grandparent = parent.getCurrentDirectory(); |
| assertEquals("classpath://org/apache/beam/sdk", grandparent.getFilename()); |
| ClassLoaderFileSystem.ClassLoaderResourceId resource = |
| grandparent |
| .resolve("io", ResolveOptions.StandardResolveOptions.RESOLVE_DIRECTORY) |
| .resolve( |
| "ClassLoaderFileSystem.class", ResolveOptions.StandardResolveOptions.RESOLVE_FILE); |
| ReadableByteChannel channel = filesystem.open(resource); |
| checkIsClass(channel); |
| } |
| |
| public void checkIsClass(ReadableByteChannel channel) throws IOException { |
| FileSystems.setDefaultPipelineOptions(PipelineOptionsFactory.create()); |
| InputStream inputStream = newInputStream(channel); |
| byte[] magic = new byte[4]; |
| inputStream.read(magic); |
| assertArrayEquals(magic, new byte[] {(byte) 0xCA, (byte) 0xFE, (byte) 0xBA, (byte) 0xBE}); |
| } |
| } |