image added in hadoop sequence file - hadoop

Question

I am trying to run java program on my hadoop system to store image in sequence file and then trying to read that sequence file after that.
My Sequence is created but image data is not getting appended in sequence file.
I am trying to run below code by running this command
sudo -u hdfs hadoop jar /usr/java_jar/ImageStorage.jar ImageStorage 12e2baa2ae0e455ac40015942b682c4b.jpg
Please help me out here.
import java.io.*;
import java.util.*;
import java.net.*;
import org.apache.hadoop.fs.Path;
import org.apache.hadoop.conf.*;
import org.apache.hadoop.io.*;
import org.apache.hadoop.mapred.*;
import org.apache.hadoop.util.*;
import org.apache.hadoop.fs.*;
import org.apache.hadoop.io.SequenceFile;
import org.apache.hadoop.io.SequenceFile.Writer.Option;
import org.apache.hadoop.io.Writable;
public class ImageStorage {
private static void openOutputFile(String args1) throws Exception {
String uri = "hdfs://localhost:8020/";
Configuration conf = new Configuration();
FileSystem fs = FileSystem.get(URI.create(uri), conf);
Path path = new Path("hdfs://localhost:8020/user/img_data/SequenceFileCodecTest.seq");
String string1 = "hdfs://localhost:8020/user/img_data/";
string1 = string1 + args1;
Path inPath = new Path(string1);
FSDataInputStream in = null;
Text key = new Text();
BytesWritable value = new BytesWritable();
SequenceFile.Writer writer = null;
try{
in = fs.open(inPath);
byte buffer[] = new byte[in.available()];
in.read(buffer);
System.out.println(buffer);
in.close();
Option optPath = SequenceFile.Writer.file(path);
Option optKey = SequenceFile.Writer.keyClass(key.getClass());
Option optVal = SequenceFile.Writer.valueClass(value.getClass());
Option optCom = SequenceFile.Writer.compression(SequenceFile.CompressionType.BLOCK);
FSDataOutputStream fileOutputStream = fs.append(path);
BufferedWriter br = new BufferedWriter(new OutputStreamWriter(fileOutputStream));
writer.append(new Text(inPath.getName()), new BytesWritable(buffer));
br.close();
fileOutputStream.close();
}catch (Exception e) {
System.out.println("Exception MESSAGES = "+e.getMessage());
}
finally {
IOUtils.closeStream(writer);
System.out.println("last line of the code....!!!!!!!!!!");
}
}
private static void openReadFile() throws Exception {
String uri = "hdfs://localhost:8020/";
Configuration conf = new Configuration();
FileSystem fs = FileSystem.get(URI.create(uri), conf);
Path path = new Path("hdfs://localhost:8020/user/img_data/SequenceFileCodecTest.seq");
/* Reading Operations */
org.apache.hadoop.io.SequenceFile.Reader.Option filePath = SequenceFile.Reader.file(path);
SequenceFile.Reader sequenceFileReader = new SequenceFile.Reader(conf,filePath);
Writable key1 = (Writable) ReflectionUtils.newInstance(
sequenceFileReader.getKeyClass(), conf);
Writable value1 = (Writable) ReflectionUtils.newInstance(
sequenceFileReader.getValueClass(), conf);
try {
while (sequenceFileReader.next(key1, value1)) {
System.out.printf("[%s] %s %s \n", sequenceFileReader.getPosition(), key1,value1.getClass());
}
} finally {
IOUtils.closeStream(sequenceFileReader);
}
/* Reading operations */
}
public static void main(String[] args) throws Exception {
openOutputFile(args[1]);
openReadFile();
}
}