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Posted to issues@airavata.apache.org by "DImuthuUpe (via GitHub)" <gi...@apache.org> on 2023/03/18 20:57:04 UTC
[GitHub] [airavata-mft] DImuthuUpe commented on a diff in pull request #91: Local transport v2 and other fixes
DImuthuUpe commented on code in PR #91:
URL: https://github.com/apache/airavata-mft/pull/91#discussion_r1141156866
##########
transport/local-transport/src/main/java/org/apache/airavata/mft/transport/local/LocalIncomingChunkedConnector.java:
##########
@@ -53,45 +55,40 @@ public void failed() throws Exception {
@Override
public void downloadChunk(int chunkId, long startByte, long endByte, String downloadFile) throws Exception {
- FileInputStream from = new FileInputStream(new File(this.resourcePath));
- FileOutputStream to = new FileOutputStream(new File(downloadFile));
-
- final int buffLen = 1024;
-
- byte[] buf = new byte[buffLen];
-
- from.skip(startByte);
-
- long fileSize = endByte - startByte + 1;
-
- while (true) {
- int bufSize = 0;
-
- if (buffLen < fileSize) {
- bufSize = buffLen;
- } else {
- bufSize = (int) fileSize;
- }
-
- bufSize = (int) from.read(buf, 0, bufSize);
-
- if (bufSize < 0) {
- break;
- }
-
- to.write(buf, 0, bufSize);
- to.flush();
-
- fileSize -= bufSize;
-
- if (fileSize == 0L) {
- break;
+ logger.info("Downloading chunk {} with start byte {} and end byte {} to file {} from resource path {}",
+ chunkId, startByte, endByte, downloadFile, this.resourcePath);
+
+// #use this code on a DMA enabled device
Review Comment:
Make this configurable through a property
##########
transport/local-transport/src/main/java/org/apache/airavata/mft/transport/local/LocalIncomingChunkedConnector.java:
##########
@@ -53,45 +55,40 @@ public void failed() throws Exception {
@Override
public void downloadChunk(int chunkId, long startByte, long endByte, String downloadFile) throws Exception {
- FileInputStream from = new FileInputStream(new File(this.resourcePath));
- FileOutputStream to = new FileOutputStream(new File(downloadFile));
-
- final int buffLen = 1024;
-
- byte[] buf = new byte[buffLen];
-
- from.skip(startByte);
-
- long fileSize = endByte - startByte + 1;
-
- while (true) {
- int bufSize = 0;
-
- if (buffLen < fileSize) {
- bufSize = buffLen;
- } else {
- bufSize = (int) fileSize;
- }
-
- bufSize = (int) from.read(buf, 0, bufSize);
-
- if (bufSize < 0) {
- break;
- }
-
- to.write(buf, 0, bufSize);
- to.flush();
-
- fileSize -= bufSize;
-
- if (fileSize == 0L) {
- break;
+ logger.info("Downloading chunk {} with start byte {} and end byte {} to file {} from resource path {}",
+ chunkId, startByte, endByte, downloadFile, this.resourcePath);
+
+// #use this code on a DMA enabled device
+// if (resourceSize <= endByte - startByte) {
+// Files.copy(Path.of(this.resourcePath), Path.of(downloadFile));
+// } else {
+// try (FileInputStream from = new FileInputStream(this.resourcePath);
+// FileOutputStream to = new FileOutputStream(downloadFile)) {
+// from.getChannel().transferTo(startByte, endByte - startByte, to.getChannel());
+// } catch (Exception e) {
+// logger.error("Unexpected error occurred while downloading chunk {} to file {} from resource path {}",
+// chunkId, downloadFile, this.resourcePath, e);
+// throw e;
+// }
+// }
+
+ int buffLen = 1024 * 1024 * 16;
Review Comment:
Make this a configurable value
--
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