Author: frm
Date: Thu Jan 17 14:43:52 2019
New Revision: 1851535
URL: http://svn.apache.org/viewvc?rev=1851535&view=rev
Log:
OAK-6749 - Add RemoteBlobProcessor
Added:
jackrabbit/oak/trunk/oak-segment-tar/src/main/java/org/apache/jackrabbit/oak/segment/standby/client/RemoteBlobProcessor.java
(with props)
Added:
jackrabbit/oak/trunk/oak-segment-tar/src/main/java/org/apache/jackrabbit/oak/segment/standby/client/RemoteBlobProcessor.java
URL:
http://svn.apache.org/viewvc/jackrabbit/oak/trunk/oak-segment-tar/src/main/java/org/apache/jackrabbit/oak/segment/standby/client/RemoteBlobProcessor.java?rev=1851535&view=auto
==============================================================================
---
jackrabbit/oak/trunk/oak-segment-tar/src/main/java/org/apache/jackrabbit/oak/segment/standby/client/RemoteBlobProcessor.java
(added)
+++
jackrabbit/oak/trunk/oak-segment-tar/src/main/java/org/apache/jackrabbit/oak/segment/standby/client/RemoteBlobProcessor.java
Thu Jan 17 14:43:52 2019
@@ -0,0 +1,85 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+package org.apache.jackrabbit.oak.segment.standby.client;
+
+import java.io.IOException;
+import java.io.InputStream;
+
+import org.apache.jackrabbit.oak.api.Blob;
+import org.apache.jackrabbit.oak.segment.SegmentBlob;
+import org.apache.jackrabbit.oak.spi.blob.BlobStore;
+
+class RemoteBlobProcessor implements BlobProcessor {
+
+ interface BlobDownloader {
+
+ InputStream downloadBlob(String blobId) throws InterruptedException;
+
+ }
+
+ private final BlobStore blobStore;
+
+ private final BlobDownloader blobDownloader;
+
+ RemoteBlobProcessor(BlobStore blobStore, BlobDownloader blobDownloader) {
+ this.blobStore = blobStore;
+ this.blobDownloader = blobDownloader;
+ }
+
+ @Override
+ public void processBinary(Blob b) throws InterruptedException {
+ if (b instanceof SegmentBlob) {
+ fetchBinary((SegmentBlob) b);
+ } else {
+ throw new BlobTypeUnknownException();
+ }
+ }
+
+ private void fetchBinary(SegmentBlob blob) throws InterruptedException {
+ if (shouldFetchBinary(blob)) {
+ fetchAndStoreBlob(blob.getBlobId());
+ }
+ }
+
+ private boolean shouldFetchBinary(SegmentBlob blob) {
+ return blob.isExternal() && blob.getReference() == null &&
blob.getBlobId() != null;
+ }
+
+ private void fetchAndStoreBlob(String blobId) throws InterruptedException {
+ try (InputStream in = downloadBlob(blobId)) {
+ writeBlob(blobId, in);
+ } catch (IOException e) {
+ throw new BlobWriteException(blobId, e);
+ }
+ }
+
+ private void writeBlob(String blobId, InputStream stream) {
+ try {
+ blobStore.writeBlob(stream);
+ } catch (IOException e) {
+ throw new BlobWriteException(blobId, e);
+ }
+ }
+
+ private InputStream downloadBlob(String blobId) throws
InterruptedException {
+ return blobDownloader.downloadBlob(blobId);
+ }
+
+}
Propchange:
jackrabbit/oak/trunk/oak-segment-tar/src/main/java/org/apache/jackrabbit/oak/segment/standby/client/RemoteBlobProcessor.java
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