First pass at making download job output public. Ended up moving the request to

get the archiveSize into downloadJobOutputInMultipleChunks() after the job completed, just to simplify the method. Not fully
tested yet

Author: wolpert

src/main/java/com/amazonaws/services/glacier/transfer/ArchiveTransferManager.java

@@ -324,7 +324,6 @@ public void download(final String accountId, final String vaultName, final Strin
 
         JobStatusMonitor jobStatusMonitor = null;
         String jobId = null;
-        long archiveSize = 0;
 
         try {
             if (credentialsProvider != null && clientConfiguration != null) {
@@ -344,9 +343,6 @@ public void download(final String accountId, final String vaultName, final Strin
                     .withJobParameters(jobParameters));
             jobId = archiveRetrievalResult.getJobId();
 
-            DescribeJobResult describeJobResult = glacier.describeJob(new DescribeJobRequest(accountId, vaultName, jobId));
-            archiveSize = describeJobResult.getArchiveSizeInBytes();
-
             jobStatusMonitor.waitForJobToComplete(jobId);
 
         } finally {
@@ -355,18 +351,23 @@ public void download(final String accountId, final String vaultName, final Strin
             }
         }
 
-        downloadJobOutputInMultipleChunks(accountId, vaultName, jobId, archiveSize, file);
+        downloadJobOutputInMultipleChunks(accountId, vaultName, jobId, file);
     }
 
-    private void downloadJobOutputInMultipleChunks(String accountId, String vaultName, String jobId, long archiveSize, File file) {
+    public void downloadJobOutputInMultipleChunks(String accountId, String vaultName, String jobId, File file) {
 
+        long archiveSize = 0;
         long chunkSize = DEFAULT_DOWNLOAD_CHUNK_SIZE;
         long currentPosition = 0;
         long endPosition = 0;
+
         RandomAccessFile output = null;
         String customizedChunkSize = null;
         customizedChunkSize = System.getProperty("com.amazonaws.services.glacier.transfer.downloadChunkSizeInMB");
 
+        DescribeJobResult describeJobResult = glacier.describeJob(new DescribeJobRequest(accountId, vaultName, jobId));
+        archiveSize = describeJobResult.getArchiveSizeInBytes();
+
         if (customizedChunkSize != null) {
             try {
                 chunkSize = Long.parseLong(customizedChunkSize) * 1024 * 1024;