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just documenting to learn how the things are coded #36

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15 changes: 9 additions & 6 deletions ...ci-objectstorage-get-object-java/src/main/java/com/example/fn/ObjectStorageGetObject.java
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Original file line number Diff line number Diff line change
Expand Up @@ -18,11 +18,12 @@
import java.util.stream.Collectors;

public class ObjectStorageGetObject {


//defining the resource principal signer
private ObjectStorage objStoreClient = null;
final ResourcePrincipalAuthenticationDetailsProvider provider
= ResourcePrincipalAuthenticationDetailsProvider.builder().build();

//get the client
public ObjectStorageGetObject() {

try {
Expand All @@ -31,14 +32,15 @@ public ObjectStorageGetObject() {
System.err.println("OCI_RESOURCE_PRINCIPAL_REGION " + System.getenv("OCI_RESOURCE_PRINCIPAL_REGION"));
System.err.println("OCI_RESOURCE_PRINCIPAL_RPST " + System.getenv("OCI_RESOURCE_PRINCIPAL_RPST"));
System.err.println("OCI_RESOURCE_PRINCIPAL_PRIVATE_PEM " + System.getenv("OCI_RESOURCE_PRINCIPAL_PRIVATE_PEM"));

//it is using err for no reason as it is printing the main values not errors
//create a objectstorage client
objStoreClient = new ObjectStorageClient(provider);

} catch (Throwable ex) {
System.err.println("Failed to instantiate ObjectStorage client - " + ex.getMessage());
}
}

//get the object info or change it by passing custom parameters, how I don't know
public static class GetObjectInfo {

private String bucketName;
Expand Down Expand Up @@ -73,15 +75,16 @@ public String handle(GetObjectInfo objectInfo) {
try {

String nameSpace = System.getenv().get("NAMESPACE");

//I dont know what it is doing here, like getobject request
GetObjectRequest gor = GetObjectRequest.builder()
.namespaceName(nameSpace)
.bucketName(objectInfo.getBucketName())
.objectName(objectInfo.getName())
.build();
System.err.println("Getting content for object " + objectInfo.getName() + " from bucket " + objectInfo.getBucketName());

//get object with the help of request and client
GetObjectResponse response = objStoreClient.getObject(gor);
//result loaded to memory
result = new BufferedReader(new InputStreamReader(response.getInputStream()))
.lines().collect(Collectors.joining("\n"));

Expand Down