| /* |
| * 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.sling; |
| |
| import static org.junit.Assert.assertTrue; |
| |
| import java.io.ByteArrayOutputStream; |
| import java.io.FileOutputStream; |
| import java.io.IOException; |
| import java.lang.annotation.Annotation; |
| |
| import org.apache.commons.io.IOUtils; |
| import org.apache.sling.fileoptim.optimizers.JpegFileOptimizer; |
| import org.apache.sling.fileoptim.optimizers.JpegFileOptimizer.Config; |
| import org.junit.Before; |
| import org.junit.Test; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| public class TestJPGFileOptimizer { |
| |
| private JpegFileOptimizer optimizer = new JpegFileOptimizer(); |
| |
| private static final Logger log = LoggerFactory.getLogger(TestJPGFileOptimizer.class); |
| |
| @Before |
| public void init() { |
| |
| Config config = new Config() { |
| { |
| } |
| |
| @Override |
| public Class<? extends Annotation> annotationType() { |
| return null; |
| } |
| |
| @Override |
| public float compressionLevel() { |
| return 0.75f; |
| } |
| }; |
| optimizer.activate(config); |
| } |
| |
| @Test |
| public void testOptimizer() throws IOException { |
| ByteArrayOutputStream baos = new ByteArrayOutputStream(); |
| IOUtils.copy(getClass().getClassLoader().getResourceAsStream("valentino-funghi-41239-unsplash.jpg"), baos); |
| byte[] optimized = optimizer.optimizeFile(baos.toByteArray(), "image/jpeg"); |
| |
| assertTrue(baos.toByteArray().length > optimized.length); |
| |
| log.info("Original size: {}", baos.toByteArray().length); |
| log.info("Optimized size: {}", optimized.length); |
| |
| double savings = 1.0 - ((double) optimized.length / (double) baos.toByteArray().length); |
| log.info("Compressed by {}%", Math.round(savings * 100.0)); |
| |
| IOUtils.write(optimized, new FileOutputStream("target/optimized.jpg")); |
| } |
| } |