read files from hdfs location using spring batch 4 java config












0















I want read all the files from HDFS location and process files sequentially using spring batch.Currently I was using the MultiResourceItemReader to read the files from local file system and processing it.










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  • This answer may help you: stackoverflow.com/a/52774679/5019386

    – Mahmoud Ben Hassine
    Nov 13 '18 at 7:32











  • Possible duplicate of Reading file from HDFS using Spring batch

    – Mahmoud Ben Hassine
    Nov 13 '18 at 7:33
















0















I want read all the files from HDFS location and process files sequentially using spring batch.Currently I was using the MultiResourceItemReader to read the files from local file system and processing it.










share|improve this question























  • This answer may help you: stackoverflow.com/a/52774679/5019386

    – Mahmoud Ben Hassine
    Nov 13 '18 at 7:32











  • Possible duplicate of Reading file from HDFS using Spring batch

    – Mahmoud Ben Hassine
    Nov 13 '18 at 7:33














0












0








0








I want read all the files from HDFS location and process files sequentially using spring batch.Currently I was using the MultiResourceItemReader to read the files from local file system and processing it.










share|improve this question














I want read all the files from HDFS location and process files sequentially using spring batch.Currently I was using the MultiResourceItemReader to read the files from local file system and processing it.







spring spring-batch






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asked Nov 13 '18 at 6:16









P RajeshP Rajesh

64




64













  • This answer may help you: stackoverflow.com/a/52774679/5019386

    – Mahmoud Ben Hassine
    Nov 13 '18 at 7:32











  • Possible duplicate of Reading file from HDFS using Spring batch

    – Mahmoud Ben Hassine
    Nov 13 '18 at 7:33



















  • This answer may help you: stackoverflow.com/a/52774679/5019386

    – Mahmoud Ben Hassine
    Nov 13 '18 at 7:32











  • Possible duplicate of Reading file from HDFS using Spring batch

    – Mahmoud Ben Hassine
    Nov 13 '18 at 7:33

















This answer may help you: stackoverflow.com/a/52774679/5019386

– Mahmoud Ben Hassine
Nov 13 '18 at 7:32





This answer may help you: stackoverflow.com/a/52774679/5019386

– Mahmoud Ben Hassine
Nov 13 '18 at 7:32













Possible duplicate of Reading file from HDFS using Spring batch

– Mahmoud Ben Hassine
Nov 13 '18 at 7:33





Possible duplicate of Reading file from HDFS using Spring batch

– Mahmoud Ben Hassine
Nov 13 '18 at 7:33












1 Answer
1






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oldest

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0














l have Read the files from HDFS Location to local file system and spring batch read the files from the local file system.



    //Read the files from the hdfs to local file system
private Resource getMultipleResourceItemreader() {
ArrayList<Resource> resource = new ArrayList<Resource>();
org.apache.hadoop.conf.Configuration configuration= new org.apache.hadoop.conf.Configuration();
configuration.set("fs.defaultFS", "hdfs://localhost:9000");
configuration.set("fs.hdfs.impl", org.apache.hadoop.hdfs.DistributedFileSystem.class.getName());
System.setProperty("HADOOP_USER_NAME", "xxxx");
System.setProperty("hadoop.home.dir", "D:\rajesh\softwares\winutils");
FileSystem fs;
try {
fs = FileSystem.get(URI.create("hdfs://localhost:9000"), configuration);
FileStatus files = fs.listStatus(new Path("hdfsfilelocation"));
for (int i=0;i<files.length;i++){
//resource.add( context.getResource(files[i].getPath().toString()));
fs.copyToLocalFile(files[i].getPath(), new Path(batchConfigurationProperties.getCsvFilePath()));
deleteTempFile(batchConfigurationProperties.getCsvFilePath(),".crc");

}


} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
File configJsonDirectory = new File(batchConfigurationProperties.getCsvFilePath());
File csvFileList = configJsonDirectory.listFiles();
for (File file : csvFileList) {
if (file.isFile()) {
resource.add(new FileSystemResource(file.getPath()));
}
}
return resource.toArray(new Resource[resource.size()]);
}





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  • how to read the file and process from hdfs location using flatfileItemreader with out copying into local file system from hdfs

    – P Rajesh
    Nov 20 '18 at 8:04











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1 Answer
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active

oldest

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1 Answer
1






active

oldest

votes









active

oldest

votes






active

oldest

votes









0














l have Read the files from HDFS Location to local file system and spring batch read the files from the local file system.



    //Read the files from the hdfs to local file system
private Resource getMultipleResourceItemreader() {
ArrayList<Resource> resource = new ArrayList<Resource>();
org.apache.hadoop.conf.Configuration configuration= new org.apache.hadoop.conf.Configuration();
configuration.set("fs.defaultFS", "hdfs://localhost:9000");
configuration.set("fs.hdfs.impl", org.apache.hadoop.hdfs.DistributedFileSystem.class.getName());
System.setProperty("HADOOP_USER_NAME", "xxxx");
System.setProperty("hadoop.home.dir", "D:\rajesh\softwares\winutils");
FileSystem fs;
try {
fs = FileSystem.get(URI.create("hdfs://localhost:9000"), configuration);
FileStatus files = fs.listStatus(new Path("hdfsfilelocation"));
for (int i=0;i<files.length;i++){
//resource.add( context.getResource(files[i].getPath().toString()));
fs.copyToLocalFile(files[i].getPath(), new Path(batchConfigurationProperties.getCsvFilePath()));
deleteTempFile(batchConfigurationProperties.getCsvFilePath(),".crc");

}


} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
File configJsonDirectory = new File(batchConfigurationProperties.getCsvFilePath());
File csvFileList = configJsonDirectory.listFiles();
for (File file : csvFileList) {
if (file.isFile()) {
resource.add(new FileSystemResource(file.getPath()));
}
}
return resource.toArray(new Resource[resource.size()]);
}





share|improve this answer


























  • how to read the file and process from hdfs location using flatfileItemreader with out copying into local file system from hdfs

    – P Rajesh
    Nov 20 '18 at 8:04
















0














l have Read the files from HDFS Location to local file system and spring batch read the files from the local file system.



    //Read the files from the hdfs to local file system
private Resource getMultipleResourceItemreader() {
ArrayList<Resource> resource = new ArrayList<Resource>();
org.apache.hadoop.conf.Configuration configuration= new org.apache.hadoop.conf.Configuration();
configuration.set("fs.defaultFS", "hdfs://localhost:9000");
configuration.set("fs.hdfs.impl", org.apache.hadoop.hdfs.DistributedFileSystem.class.getName());
System.setProperty("HADOOP_USER_NAME", "xxxx");
System.setProperty("hadoop.home.dir", "D:\rajesh\softwares\winutils");
FileSystem fs;
try {
fs = FileSystem.get(URI.create("hdfs://localhost:9000"), configuration);
FileStatus files = fs.listStatus(new Path("hdfsfilelocation"));
for (int i=0;i<files.length;i++){
//resource.add( context.getResource(files[i].getPath().toString()));
fs.copyToLocalFile(files[i].getPath(), new Path(batchConfigurationProperties.getCsvFilePath()));
deleteTempFile(batchConfigurationProperties.getCsvFilePath(),".crc");

}


} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
File configJsonDirectory = new File(batchConfigurationProperties.getCsvFilePath());
File csvFileList = configJsonDirectory.listFiles();
for (File file : csvFileList) {
if (file.isFile()) {
resource.add(new FileSystemResource(file.getPath()));
}
}
return resource.toArray(new Resource[resource.size()]);
}





share|improve this answer


























  • how to read the file and process from hdfs location using flatfileItemreader with out copying into local file system from hdfs

    – P Rajesh
    Nov 20 '18 at 8:04














0












0








0







l have Read the files from HDFS Location to local file system and spring batch read the files from the local file system.



    //Read the files from the hdfs to local file system
private Resource getMultipleResourceItemreader() {
ArrayList<Resource> resource = new ArrayList<Resource>();
org.apache.hadoop.conf.Configuration configuration= new org.apache.hadoop.conf.Configuration();
configuration.set("fs.defaultFS", "hdfs://localhost:9000");
configuration.set("fs.hdfs.impl", org.apache.hadoop.hdfs.DistributedFileSystem.class.getName());
System.setProperty("HADOOP_USER_NAME", "xxxx");
System.setProperty("hadoop.home.dir", "D:\rajesh\softwares\winutils");
FileSystem fs;
try {
fs = FileSystem.get(URI.create("hdfs://localhost:9000"), configuration);
FileStatus files = fs.listStatus(new Path("hdfsfilelocation"));
for (int i=0;i<files.length;i++){
//resource.add( context.getResource(files[i].getPath().toString()));
fs.copyToLocalFile(files[i].getPath(), new Path(batchConfigurationProperties.getCsvFilePath()));
deleteTempFile(batchConfigurationProperties.getCsvFilePath(),".crc");

}


} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
File configJsonDirectory = new File(batchConfigurationProperties.getCsvFilePath());
File csvFileList = configJsonDirectory.listFiles();
for (File file : csvFileList) {
if (file.isFile()) {
resource.add(new FileSystemResource(file.getPath()));
}
}
return resource.toArray(new Resource[resource.size()]);
}





share|improve this answer















l have Read the files from HDFS Location to local file system and spring batch read the files from the local file system.



    //Read the files from the hdfs to local file system
private Resource getMultipleResourceItemreader() {
ArrayList<Resource> resource = new ArrayList<Resource>();
org.apache.hadoop.conf.Configuration configuration= new org.apache.hadoop.conf.Configuration();
configuration.set("fs.defaultFS", "hdfs://localhost:9000");
configuration.set("fs.hdfs.impl", org.apache.hadoop.hdfs.DistributedFileSystem.class.getName());
System.setProperty("HADOOP_USER_NAME", "xxxx");
System.setProperty("hadoop.home.dir", "D:\rajesh\softwares\winutils");
FileSystem fs;
try {
fs = FileSystem.get(URI.create("hdfs://localhost:9000"), configuration);
FileStatus files = fs.listStatus(new Path("hdfsfilelocation"));
for (int i=0;i<files.length;i++){
//resource.add( context.getResource(files[i].getPath().toString()));
fs.copyToLocalFile(files[i].getPath(), new Path(batchConfigurationProperties.getCsvFilePath()));
deleteTempFile(batchConfigurationProperties.getCsvFilePath(),".crc");

}


} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
File configJsonDirectory = new File(batchConfigurationProperties.getCsvFilePath());
File csvFileList = configJsonDirectory.listFiles();
for (File file : csvFileList) {
if (file.isFile()) {
resource.add(new FileSystemResource(file.getPath()));
}
}
return resource.toArray(new Resource[resource.size()]);
}






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share|improve this answer



share|improve this answer








edited Nov 14 '18 at 7:03

























answered Nov 14 '18 at 6:58









P RajeshP Rajesh

64




64













  • how to read the file and process from hdfs location using flatfileItemreader with out copying into local file system from hdfs

    – P Rajesh
    Nov 20 '18 at 8:04



















  • how to read the file and process from hdfs location using flatfileItemreader with out copying into local file system from hdfs

    – P Rajesh
    Nov 20 '18 at 8:04

















how to read the file and process from hdfs location using flatfileItemreader with out copying into local file system from hdfs

– P Rajesh
Nov 20 '18 at 8:04





how to read the file and process from hdfs location using flatfileItemreader with out copying into local file system from hdfs

– P Rajesh
Nov 20 '18 at 8:04


















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