stefan-egli commented on code in PR #1473:
URL: https://github.com/apache/jackrabbit-oak/pull/1473#discussion_r1608383806
##########
oak-store-document/src/main/java/org/apache/jackrabbit/oak/plugins/document/DocumentPropertyState.java:
##########
@@ -38,24 +43,52 @@
import org.apache.jackrabbit.oak.plugins.memory.StringPropertyState;
import org.apache.jackrabbit.oak.plugins.value.Conversions;
import org.jetbrains.annotations.NotNull;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
/**
* PropertyState implementation with lazy parsing of the JSOP encoded value.
*/
final class DocumentPropertyState implements PropertyState {
+ private static final Logger LOG =
LoggerFactory.getLogger(DocumentPropertyState.class);
+
private final DocumentNodeStore store;
private final String name;
private final String value;
private PropertyState parsed;
+ private byte[] compressedValue;
+ private final Compression compression = Compression.GZIP;
+
+ private static final int DEFAULT_COMPRESSION_THRESHOLD =
Integer.getInteger("oak.mongo.compressionThreshold", 1024);
DocumentPropertyState(DocumentNodeStore store, String name, String value) {
this.store = store;
this.name = name;
- this.value = value;
+
+ int size = value.getBytes().length;
+ if (size > DEFAULT_COMPRESSION_THRESHOLD) {
+ compressedValue = compress(value.getBytes());
+ this.value = null;
+ } else {
+ this.value = value;
+ }
+ }
+
+ private byte[] compress(byte[] value) {
+ try {
+ ByteArrayOutputStream out = new ByteArrayOutputStream();
+ OutputStream compressionOutputStream =
compression.getOutputStream(out);
+ compressionOutputStream.write(value);
+ compressionOutputStream.close();
+ return out.toByteArray();
+ } catch (IOException e) {
+ LOG.warn("Failed to compress data: ", value);
Review Comment:
I wouldn't log the value as that could leak sensitive data into the log
file. While we don't have the path, perhaps just log the property name plus the
IOException message?
##########
oak-store-document/src/main/java/org/apache/jackrabbit/oak/plugins/document/DocumentPropertyState.java:
##########
@@ -38,24 +43,52 @@
import org.apache.jackrabbit.oak.plugins.memory.StringPropertyState;
import org.apache.jackrabbit.oak.plugins.value.Conversions;
import org.jetbrains.annotations.NotNull;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
/**
* PropertyState implementation with lazy parsing of the JSOP encoded value.
*/
final class DocumentPropertyState implements PropertyState {
+ private static final Logger LOG =
LoggerFactory.getLogger(DocumentPropertyState.class);
+
private final DocumentNodeStore store;
private final String name;
private final String value;
private PropertyState parsed;
+ private byte[] compressedValue;
Review Comment:
could/should this be `final` as well? (just one more `null` assignment
necessary..)
##########
oak-store-document/src/main/java/org/apache/jackrabbit/oak/plugins/document/DocumentPropertyState.java:
##########
@@ -38,24 +43,52 @@
import org.apache.jackrabbit.oak.plugins.memory.StringPropertyState;
import org.apache.jackrabbit.oak.plugins.value.Conversions;
import org.jetbrains.annotations.NotNull;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
/**
* PropertyState implementation with lazy parsing of the JSOP encoded value.
*/
final class DocumentPropertyState implements PropertyState {
+ private static final Logger LOG =
LoggerFactory.getLogger(DocumentPropertyState.class);
+
private final DocumentNodeStore store;
private final String name;
private final String value;
private PropertyState parsed;
+ private byte[] compressedValue;
+ private final Compression compression = Compression.GZIP;
+
+ private static final int DEFAULT_COMPRESSION_THRESHOLD =
Integer.getInteger("oak.mongo.compressionThreshold", 1024);
DocumentPropertyState(DocumentNodeStore store, String name, String value) {
this.store = store;
this.name = name;
- this.value = value;
+
+ int size = value.getBytes().length;
+ if (size > DEFAULT_COMPRESSION_THRESHOLD) {
+ compressedValue = compress(value.getBytes());
+ this.value = null;
+ } else {
+ this.value = value;
+ }
+ }
+
+ private byte[] compress(byte[] value) {
+ try {
+ ByteArrayOutputStream out = new ByteArrayOutputStream();
+ OutputStream compressionOutputStream =
compression.getOutputStream(out);
+ compressionOutputStream.write(value);
+ compressionOutputStream.close();
+ return out.toByteArray();
+ } catch (IOException e) {
+ LOG.warn("Failed to compress data: ", value);
+ return value;
Review Comment:
with now returning the original uncompressed `value` here in exception case,
that then likely leads to subsequent issues with uncompressing. It might need
more complex logic in exception cases I think.
##########
oak-store-document/src/test/java/org/apache/jackrabbit/oak/plugins/document/DocumentPropertyStateTest.java:
##########
@@ -38,6 +39,19 @@
public class DocumentPropertyStateTest {
private static final int BLOB_SIZE = 16 * 1024;
+ public static final String TEST = "test";
Review Comment:
naming .. but maybe it could indicate what it is used for, eg `TEST_NODE` ?
##########
oak-store-document/src/main/java/org/apache/jackrabbit/oak/plugins/document/DocumentPropertyState.java:
##########
@@ -116,7 +149,16 @@ public int count() {
*/
@NotNull
String getValue() {
- return value;
+ return value != null ? value : decompress(this.compressedValue);
+ }
+
+ private String decompress(byte[] value) {
+ try {
+ return new String(compression.getInputStream(new
ByteArrayInputStream(value)).readAllBytes());
+ } catch (IOException e) {
+ LOG.warn("Failed to decompress data.", value);
Review Comment:
an IOException on decompress is bad, as that would fail the reading of the
value (while the same on compression is not a problem, then it would just not
compress). So I'd argue this would justify a `LOG.error` here.
problem might then be, that in IOException case this might become a noisy
logger .. not sure if we should already consider that now though...
but also : I wouldn't log the value itself.
##########
oak-store-document/src/test/java/org/apache/jackrabbit/oak/plugins/document/DocumentPropertyStateTest.java:
##########
@@ -68,10 +82,10 @@ public void multiValuedBinarySize() throws Exception {
for (int i = 0; i < 3; i++) {
blobs.add(builder.createBlob(new RandomStream(BLOB_SIZE, i)));
}
- builder.child("test").setProperty("p", blobs, Type.BINARIES);
+ builder.child(TEST).setProperty("p", blobs, Type.BINARIES);
TestUtils.merge(ns, builder);
- PropertyState p = ns.getRoot().getChildNode("test").getProperty("p");
+ PropertyState p = ns.getRoot().getChildNode(TEST).getProperty("p");
Review Comment:
minor: could also leave this method unchanged as it is unrelated and only
cosmetic
##########
oak-store-document/src/main/java/org/apache/jackrabbit/oak/plugins/document/DocumentPropertyState.java:
##########
@@ -38,24 +43,52 @@
import org.apache.jackrabbit.oak.plugins.memory.StringPropertyState;
import org.apache.jackrabbit.oak.plugins.value.Conversions;
import org.jetbrains.annotations.NotNull;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
/**
* PropertyState implementation with lazy parsing of the JSOP encoded value.
*/
final class DocumentPropertyState implements PropertyState {
+ private static final Logger LOG =
LoggerFactory.getLogger(DocumentPropertyState.class);
+
private final DocumentNodeStore store;
private final String name;
private final String value;
private PropertyState parsed;
+ private byte[] compressedValue;
+ private final Compression compression = Compression.GZIP;
+
+ private static final int DEFAULT_COMPRESSION_THRESHOLD =
Integer.getInteger("oak.mongo.compressionThreshold", 1024);
DocumentPropertyState(DocumentNodeStore store, String name, String value) {
this.store = store;
this.name = name;
- this.value = value;
+
+ int size = value.getBytes().length;
+ if (size > DEFAULT_COMPRESSION_THRESHOLD) {
+ compressedValue = compress(value.getBytes());
Review Comment:
```suggestion
compressedValue = compress(value.getBytes());
```
formatting
##########
oak-store-document/src/test/java/org/apache/jackrabbit/oak/plugins/document/DocumentPropertyStateTest.java:
##########
@@ -38,6 +39,19 @@
public class DocumentPropertyStateTest {
private static final int BLOB_SIZE = 16 * 1024;
+ public static final String TEST = "test";
+ public static final String STRING_HUGEVALUE =
"dummyalgjalegaafdajflalsdddkajf;kdfjakdfjadlsfjalkdsfjakldsfjkladsfjalkdsfjadlk;"
+
Review Comment:
would org.apache.commons.lang3.RandomStringUtils (maybe using the variant
that accepts a `Random` that can be seeded with a fixed value) be a useful
alternative for this hard coded string?
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