| /* |
| * 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.tika.io; |
| |
| import java.io.ByteArrayInputStream; |
| import java.io.File; |
| import java.io.FileInputStream; |
| import java.io.FileOutputStream; |
| import java.io.IOException; |
| import java.io.InputStream; |
| import java.io.OutputStream; |
| |
| import junit.framework.TestCase; |
| |
| public class TikaInputStreamTest extends TestCase { |
| |
| public void testFileBased() throws IOException { |
| File file = createTempFile("Hello, World!"); |
| InputStream stream = TikaInputStream.get(file); |
| |
| assertEquals( |
| "The file returned by the getFile() method should" |
| + " be the file used to instantiate a TikaInputStream", |
| file, TikaInputStream.get(stream).getFile()); |
| |
| assertEquals( |
| "The contents of the TikaInputStream should equal the" |
| + " contents of the underlying file", |
| "Hello, World!", readStream(stream)); |
| |
| stream.close(); |
| assertTrue( |
| "The close() method must not remove the file used to" |
| + " instantiate a TikaInputStream", |
| file.exists()); |
| |
| file.delete(); |
| } |
| |
| public void testStreamBased() throws IOException { |
| InputStream input = |
| new ByteArrayInputStream("Hello, World!".getBytes("UTF-8")); |
| InputStream stream = TikaInputStream.get(input); |
| |
| File file = TikaInputStream.get(stream).getFile(); |
| assertTrue(file != null && file.isFile()); |
| |
| assertEquals( |
| "The contents of the file returned by the getFile method" |
| + " should equal the contents of the TikaInputStream", |
| "Hello, World!", readFile(file)); |
| |
| assertEquals( |
| "The contents of the TikaInputStream should not get modified" |
| + " by reading the file first", |
| "Hello, World!", readStream(stream)); |
| |
| stream.close(); |
| assertFalse( |
| "The close() method must remove the temporary file created" |
| + " by a TikaInputStream", |
| file.exists()); |
| } |
| |
| private File createTempFile(String data) throws IOException { |
| File file = File.createTempFile("tika-", ".tmp"); |
| OutputStream stream = new FileOutputStream(file); |
| try { |
| stream.write(data.getBytes("UTF-8")); |
| } finally { |
| stream.close(); |
| } |
| return file; |
| } |
| |
| private String readFile(File file) throws IOException { |
| InputStream stream = new FileInputStream(file); |
| try { |
| return readStream(stream); |
| } finally { |
| stream.close(); |
| } |
| } |
| |
| private String readStream(InputStream stream) throws IOException { |
| ByteArrayOutputStream buffer = new ByteArrayOutputStream(); |
| IOUtils.copy(stream, buffer); |
| return buffer.toString("UTF-8"); |
| } |
| |
| } |