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Added loading configuration from S3 #1

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Added loading configuration from S3 #1

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7 changes: 6 additions & 1 deletion pom.xml
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Original file line number Diff line number Diff line change
Expand Up @@ -109,7 +109,12 @@ xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/ma
<artifactId>commons-lang3</artifactId>
<version>3.1</version>
</dependency>


<dependency>
<groupId>com.amazonaws</groupId>
<artifactId>aws-java-sdk</artifactId>
<version>1.3.22</version>
</dependency>
</dependencies>

<repositories>
Expand Down
35 changes: 32 additions & 3 deletions src/main/java/org/chombo/util/Utility.java
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Expand Up @@ -29,6 +29,8 @@
import java.util.List;
import java.util.Map;
import java.util.Properties;
import java.util.regex.Matcher;
import java.util.regex.Pattern;

import org.apache.commons.lang3.ArrayUtils;
import org.apache.commons.lang3.StringUtils;
Expand All @@ -40,6 +42,12 @@
import org.apache.lucene.analysis.TokenStream;
import org.apache.lucene.analysis.tokenattributes.CharTermAttribute;

import com.amazonaws.auth.PropertiesCredentials;
import com.amazonaws.services.s3.AmazonS3;
import com.amazonaws.services.s3.AmazonS3Client;
import com.amazonaws.services.s3.model.GetObjectRequest;
import com.amazonaws.services.s3.model.S3Object;

/**
* Generic Utility
* @author pranab
Expand All @@ -50,19 +58,41 @@ public class Utility {
private static final String FS_DEF_CONFIG_DIR = "/var/mawazo/";
private static final String HDFS_DEF_CONFIG_DIR = "/var/mawazo/";
private static final String HDFS_PREFIX = "hdfs:";
private static final String S3_PREFIX = "s3n:";
private static final int HDFS_PREFIX_LEN = 5;
private static final String PROP_FILE_EXT = ".properties";

private static Pattern s3pattern = Pattern.compile("s3n:/+([^/]+)/+(.*)");
static AmazonS3 s3 = null;
static {
try {
s3 = new AmazonS3Client(new PropertiesCredentials(Utility.class.getResourceAsStream("AwsCredentials.properties")));
}
catch (Exception e) {
e.printStackTrace();
}
}
/**
* @param conf
* @throws Exception
*/
public static void setConfiguration(Configuration conf) throws Exception{
String confFilePath = conf.get("conf.path");
if (null != confFilePath){
FileInputStream fis = new FileInputStream(confFilePath);
InputStream is = null;
if (confFilePath.startsWith(S3_PREFIX)) {
Matcher matcher = s3pattern.matcher(confFilePath);
matcher.matches();
String bucket = matcher.group(1);
String key = matcher.group(2);
S3Object object = s3.getObject(new GetObjectRequest(bucket, key));
is = object.getObjectContent();
}
else {
is = new FileInputStream(confFilePath);
}
Properties configProps = new Properties();
configProps.load(fis);
configProps.load(is);

for (Object key : configProps.keySet()){
String keySt = key.toString();
Expand Down Expand Up @@ -329,5 +359,4 @@ public static String[] filterOutFields(String[] items , int[] filteredFields) {
}
return extractedFields;
}

}