@Test
/**
* 1. JaveCV Face Detect image in SequenceFile from S3:// 2. JaveCV Face Detect image in
* SequenceFile from hdfs:// Before hdfs over HDFS is implemented, do $hadoop fs -cp
* hdfs://<path>/tmp/lena.png.seq s3://ori-tmp/lena.png.seq Eclipse:
* -Djava.library.path=/home/heq/hadoop-2.2.0/lib/native
*
* @throws Exception
*/
public void testJavaCVFaceDetectionFromS3HDFS() throws Exception {
String inputURI =
"file://" + new File(this.getClass().getResource("/lena.png").getFile()).getAbsolutePath();
String s3URI = "s3n://ori-tmp/lena.png.seq";
Util.writeToSequenceFile(inputURI, s3URI, new SnappyCodec());
byte[] pngbytes = Util.readSequenceFileFromS3(s3URI);
BufferedImage rawimage = ImageIO.read(new ByteArrayInputStream(pngbytes));
List<int[]> faces = OpenCV.detectFace(rawimage);
assertTrue(faces.size() == 1);
String hdfsURI = hadoopMaster + "/tmp/lena.png.seq";
Util.writeToSequenceFile(inputURI, hdfsURI, new SnappyCodec());
pngbytes = Util.readSequenceFileFromHDFS(hdfsURI);
rawimage = ImageIO.read(new ByteArrayInputStream(pngbytes));
faces = OpenCV.detectFace(rawimage);
assertTrue(faces.size() == 1);
}
@Test
public void testCopyfromS3ViaHttpToHdfs() throws Exception {
String inputURI =
"http://nasanex.s3.amazonaws.com/NEX-DCP30/BCSD/rcp26/mon/atmos/pr/r1i1p1/v1.0/CONUS/pr_amon_BCSD_rcp26_r1i1p1_CONUS_HadGEM2-ES_200512-200512.nc";
Util.writeToSequenceFile(inputURI, hadoopMaster + "/tmp/nasa-nc.seq", new SnappyCodec());
String existingBucketName = "ori-tmp"; // dir
String keyName = "passwd"; // file
inputURI = "s3://" + existingBucketName + ".s3.amazonaws.com/" + keyName;
Util.writeToSequenceFile(inputURI, "file:///tmp/passwd.seq", new SnappyCodec());
Util.writeToSequenceFile(inputURI, hadoopMaster + "/tmp/passwd.seq", new SnappyCodec());
}
@Test
public void testGzipBzip2Lz4SnappyCodecs() throws Exception {
// should work if all native in enabled by checking $hadoop checknative
// -a
String path = this.getClass().getResource("/ncar.nc").getPath();
Util.writeToSequenceFile("file://" + path, hadoopMaster + "/tmp/ncar.nc.seq", new Lz4Codec());
Util.writeToSequenceFile("file://" + path, hadoopMaster + "/tmp/ncar.nc.seq", new BZip2Codec());
Util.writeToSequenceFile("file://" + path, hadoopMaster + "/tmp/ncar.nc.seq", new GzipCodec());
path = this.getClass().getResource("/TRAXLZU12903D05F94.h5").getPath();
Util.writeToSequenceFile(
"file://" + path, hadoopMaster + "/tmp/TRAXLZU12903D05F94.h5.seq", new SnappyCodec());
}
@Test
public void testReadWriteFromNativeFSToHDFS() throws Exception {
Util.writeToSequenceFile("file:///etc/passwd", "file:///tmp/passwd.seq", new DefaultCodec());
Map<Text, byte[]> passwd = Util.readSequenceFile("file:///tmp/passwd.seq");
for (Map.Entry<Text, byte[]> entry : passwd.entrySet()) {
assertEquals(entry.getKey().toString(), "/etc/passwd");
}
}
@Test
public void testRecursiveCopyAndEncodingFromS3ToHdfs() throws Exception {
List<String> ncfiles =
Util.listFiles(
"s3://nasanex/MODIS/MOLT/MOD13Q1.005/2013.09.30/MOD13Q1.A2013273.h21v00.005.2013303115726.hdf",
"hdf");
for (String uri : ncfiles) {
String output = new File(uri).getName();
Util.writeToSequenceFile(uri, hadoopMaster + "/tmp/" + output + ".seq", new DefaultCodec());
}
}
@Test
public void testReadnetCDFinSequnceFileFormat() throws Exception {
String path = this.getClass().getResource("/ncar.nc").getPath();
Util.writeToSequenceFile("file://" + path, hadoopMaster + "/tmp/ncar.seq", new DefaultCodec());
Map<Text, byte[]> netcdfsequnce = Util.readSequenceFile(hadoopMaster + "/tmp/ncar.seq");
for (Map.Entry<Text, byte[]> entry : netcdfsequnce.entrySet()) {
NetcdfFile ncFile = NetcdfFile.openInMemory(entry.getKey().toString(), entry.getValue());
assertEquals(ncFile.getDimensions().size(), 5);
}
}
@Test
/**
* List NASA OpenNex netCDF files under an randomly-selected folder
*
* @throws Exception
*/
public void testCopyFilesRecursivelyFromS3() throws Exception {
List<String> ncfiles =
Util.listFiles("s3://nasanex/NEX-DCP30/BCSD/rcp26/mon/atmos/pr/r1i1p1/v1.0/", "nc");
assertTrue(ncfiles.size() >= 100); // a lot
for (String url : ncfiles) {
String file = org.apache.commons.io.FilenameUtils.getBaseName(url);
Util.writeToSequenceFile(url, hadoopMaster + "/opennex/" + file + ".seq", new SnappyCodec());
}
List<String> fileUrls = Util.listFiles("s3://ori-colorferetsubset/00001", "bz2");
for (String url : fileUrls) {
logger.debug(url);
String file = org.apache.commons.io.FilenameUtils.getBaseName(url);
Util.writeToSequenceFile(url, hadoopMaster + "/tmp/" + file + ".seq", new SnappyCodec());
}
}
@Test
/**
* Test image in compressed PPM format as used in NIST Colorferet database Eclipse:
* -Djava.library.path=/home/heq/hadoop-2.2.0/lib/native
*
* @throws Exception
*/
public void testFaceDetectionInPPMFromS3() throws Exception {
String file = "00001_930831_hl_a.ppm";
String inputURI = "s3n://ori-colorferetsubset/00001/" + file + ".bz2";
String outputURI = hadoopMaster + "/tmp/" + file + ".seq";
Util.writeToSequenceFile(inputURI, outputURI, new SnappyCodec());
byte[] ppmbytes = Util.readSequenceFileFromHDFS(outputURI);
logger.debug("file size= {}", ppmbytes.length);
ImageInputStream iis = ImageIO.createImageInputStream(new ByteArrayInputStream(ppmbytes));
BufferedImage rawimage = PPMImageReader.read(iis);
List<int[]> faces = OpenCV.detectFace(rawimage);
assertTrue(faces.size() == 1);
}
@Test
public void testListSequenceFileKey() throws Exception {
Util.writeToSequenceFile("file:///etc/passwd", "file:///tmp/passwd.seq", new DefaultCodec());
Util.listSequenceFileKeys(hadoopMaster + "/tmp/passwd.seq");
}