/*
* 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.nifi.processors.image;
import org.apache.nifi.processor.Relationship;
import org.apache.nifi.util.MockFlowFile;
import org.apache.nifi.util.TestRunner;
import org.apache.nifi.util.TestRunners;
import org.junit.Before;
import org.junit.Test;
import java.io.File;
import java.io.IOException;
import java.nio.file.Path;
import java.nio.file.Paths;
import java.util.Map;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertNull;
public class ExtractImageMetadataTest {
private static String BMP_HEADER = "BMP Header.";
private static String JPEG_HEADER = "JPEG.";
private static String GIF_HEADER = "GIF Header.";
private static String PNG_HEADER = "PNG-";
private TestRunner testRunner;
@Before
public void init() {
testRunner = TestRunners.newTestRunner(ExtractImageMetadata.class);
}
@Test
public void testFailedExtraction() throws IOException {
MockFlowFile flowFile = verifyTestRunnerFlow("src/test/resources/notImage.txt", ExtractImageMetadata.FAILURE,null);
}
@Test
public void testExtractJPG() throws IOException {
MockFlowFile flowFile = verifyTestRunnerFlow("src/test/resources/simple.jpg", ExtractImageMetadata.SUCCESS,null);
Map<String, String> attributes = flowFile.getAttributes();
assertEquals("800 pixels", attributes.get(JPEG_HEADER + "Image Width"));
assertEquals("600 pixels", attributes.get(JPEG_HEADER + "Image Height"));
assertEquals("8 bits", attributes.get(JPEG_HEADER + "Data Precision"));
assertEquals("Baseline", attributes.get(JPEG_HEADER + "Compression Type"));
assertEquals("3", attributes.get(JPEG_HEADER + "Number of Components"));
assertEquals("Y component: Quantization table 0, Sampling factors 2 horiz/2 vert",
attributes.get(JPEG_HEADER + "Component 1"));
assertEquals("Cb component: Quantization table 1, Sampling factors 1 horiz/1 vert",
attributes.get(JPEG_HEADER + "Component 2"));
assertEquals("Cr component: Quantization table 1, Sampling factors 1 horiz/1 vert",
attributes.get(JPEG_HEADER + "Component 3"));
}
@Test
public void testExtractGIF() throws IOException {
MockFlowFile flowFile = verifyTestRunnerFlow(
"src/test/resources/photoshop-8x12-32colors-alpha.gif", ExtractImageMetadata.SUCCESS,null);
Map<String, String> attributes = flowFile.getAttributes();
assertEquals("8", attributes.get(GIF_HEADER + "Image Width"));
assertEquals("12", attributes.get(GIF_HEADER + "Image Height"));
assertEquals("true", attributes.get(GIF_HEADER + "Has Global Color Table"));
assertEquals("32", attributes.get(GIF_HEADER + "Color Table Size"));
assertEquals("8", attributes.get(GIF_HEADER + "Transparent Color Index"));
assertEquals("89a", attributes.get(GIF_HEADER + "GIF Format Version"));
assertEquals("5", attributes.get(GIF_HEADER + "Bits per Pixel"));
assertEquals("false", attributes.get(GIF_HEADER + "Is Color Table Sorted"));
}
@Test
public void testExtractPNG() throws IOException {
MockFlowFile flowFile = verifyTestRunnerFlow("src/test/resources/mspaint-8x10.png", ExtractImageMetadata.SUCCESS, null);
Map<String, String> attributes = flowFile.getAttributes();
assertEquals("8", attributes.get(PNG_HEADER + "IHDR.Image Width"));
assertEquals("12", attributes.get(PNG_HEADER + "IHDR.Image Height"));
assertEquals("0.45455", attributes.get(PNG_HEADER + "gAMA.Image Gamma"));
assertEquals("Deflate", attributes.get(PNG_HEADER + "IHDR.Compression Type"));
assertEquals("No Interlace", attributes.get(PNG_HEADER + "IHDR.Interlace Method"));
assertEquals("Perceptual", attributes.get(PNG_HEADER + "sRGB.sRGB Rendering Intent"));
assertEquals("Adaptive", attributes.get(PNG_HEADER + "IHDR.Filter Method"));
assertEquals("8", attributes.get(PNG_HEADER + "IHDR.Bits Per Sample"));
assertEquals("True Color", attributes.get(PNG_HEADER + "IHDR.Color Type"));
}
@Test
public void testExtractBMP() throws IOException {
MockFlowFile flowFile = verifyTestRunnerFlow("src/test/resources/16color-10x10.bmp", ExtractImageMetadata.SUCCESS, null);
Map<String, String> attributes = flowFile.getAttributes();
assertEquals("10", attributes.get(BMP_HEADER+"Image Width"));
assertEquals("10", attributes.get(BMP_HEADER+"Image Height"));
assertEquals("4", attributes.get(BMP_HEADER+"Bits Per Pixel"));
assertEquals("None", attributes.get(BMP_HEADER+"Compression"));
assertEquals("0", attributes.get(BMP_HEADER+"X Pixels per Meter"));
assertEquals("0", attributes.get(BMP_HEADER+"Y Pixels per Meter"));
assertEquals("0", attributes.get(BMP_HEADER+"Palette Colour Count"));
assertEquals("0", attributes.get(BMP_HEADER+"Important Colour Count"));
assertEquals("1", attributes.get(BMP_HEADER+"Planes"));
assertEquals("40", attributes.get(BMP_HEADER+"Header Size"));
}
@Test
public void testExtractLimitedAttributesBMP() throws IOException {
MockFlowFile flowFile = verifyTestRunnerFlow("src/test/resources/16color-10x10.bmp", ExtractImageMetadata.SUCCESS, "5");
Map<String, String> attributes = flowFile.getAttributes();
assertEquals("10", attributes.get(BMP_HEADER+"Image Width"));
assertEquals("10", attributes.get(BMP_HEADER+"Image Height"));
assertEquals("4", attributes.get(BMP_HEADER+"Bits Per Pixel"));
assertEquals("1", attributes.get(BMP_HEADER+"Planes"));
assertEquals("40", attributes.get(BMP_HEADER+"Header Size"));
assertNull(attributes.get(BMP_HEADER + "Compression"));
assertNull(attributes.get(BMP_HEADER + "X Pixels per Meter"));
assertNull(attributes.get(BMP_HEADER + "Y Pixels per Meter"));
assertNull(attributes.get(BMP_HEADER + "Palette Colour Count"));
assertNull(attributes.get(BMP_HEADER + "Important Colour Count"));
}
public MockFlowFile verifyTestRunnerFlow(String pathStr,Relationship rel, String max) throws IOException {
Path path = Paths.get(pathStr);
testRunner.enqueue(path);
if(max != null) {
testRunner.setProperty(ExtractImageMetadata.MAX_NUMBER_OF_ATTRIBUTES, max);
}
testRunner.run();
testRunner.assertAllFlowFilesTransferred(rel, 1);
MockFlowFile flowFile = testRunner.getFlowFilesForRelationship(rel).get(0);
testRunner.assertQueueEmpty();
testRunner.enqueue(flowFile);
testRunner.clearTransferState();
testRunner.run();
testRunner.assertAllFlowFilesTransferred(rel, 1);
flowFile = testRunner.getFlowFilesForRelationship(rel).get(0);
flowFile.assertContentEquals(new File(pathStr));
return flowFile;
}
}