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Simplify a test case in Java ReadOnlyTest (#7608) 

Summary:
The original test nests a lot of `try` blocks. This PR flattens these blocks into independent blocks, so that each `try` block closes the DB before opening the next DB instance.

Pull Request resolved: https://github.com/facebook/rocksdb/pull/7608

Test Plan: watch the existing java tests to pass

Reviewed By: zhichao-cao

Differential Revision: D24611621

Pulled By: cheng-chang

fbshipit-source-id: d486c5d37ac25d4b860d739ef2cdd58e6064d42d
This commit is contained in:
cheng-chang 2020-11-04 16:47:42 -08:00 committed by Facebook GitHub Bot
parent c9c9709a1a
commit 1f627210ca
1 changed files with 39 additions and 137 deletions
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176
java/src/test/java/org/rocksdb/ReadOnlyTest.java
View File

@ -31,115 +31,60 @@ public class ReadOnlyTest {
final RocksDB db = RocksDB.open(options,
dbFolder.getRoot().getAbsolutePath())) {
db.put("key".getBytes(), "value".getBytes());
try (final RocksDB db2 = RocksDB.openReadOnly(
dbFolder.getRoot().getAbsolutePath())) {
assertThat("value").
isEqualTo(new String(db2.get("key".getBytes())));
}
}
try (final RocksDB db = RocksDB.openReadOnly(dbFolder.getRoot().getAbsolutePath())) {
assertThat("value").isEqualTo(new String(db.get("key".getBytes())));
}
try (final ColumnFamilyOptions cfOpts = new ColumnFamilyOptions()) {
final List<ColumnFamilyDescriptor> cfDescriptors = new ArrayList<>();
cfDescriptors.add(new ColumnFamilyDescriptor(
RocksDB.DEFAULT_COLUMN_FAMILY, cfOpts));
cfDescriptors.add(new ColumnFamilyDescriptor(RocksDB.DEFAULT_COLUMN_FAMILY, cfOpts));
final List<ColumnFamilyHandle> columnFamilyHandleList = new ArrayList<>();
try (final RocksDB db = RocksDB.open(dbFolder.getRoot().getAbsolutePath(),
cfDescriptors, columnFamilyHandleList)) {
try (final ColumnFamilyOptions newCfOpts = new ColumnFamilyOptions();
final ColumnFamilyOptions newCf2Opts = new ColumnFamilyOptions()
) {
columnFamilyHandleList.add(db.createColumnFamily(
new ColumnFamilyDescriptor("new_cf".getBytes(), newCfOpts)));
columnFamilyHandleList.add(db.createColumnFamily(
new ColumnFamilyDescriptor("new_cf2".getBytes(), newCf2Opts)));
db.put(columnFamilyHandleList.get(2), "key2".getBytes(),
"value2".getBytes());
try (final RocksDB db = RocksDB.open(
dbFolder.getRoot().getAbsolutePath(), cfDescriptors, columnFamilyHandleList)) {
columnFamilyHandleList.add(
db.createColumnFamily(new ColumnFamilyDescriptor("new_cf".getBytes(), cfOpts)));
columnFamilyHandleList.add(
db.createColumnFamily(new ColumnFamilyDescriptor("new_cf2".getBytes(), cfOpts)));
db.put(columnFamilyHandleList.get(2), "key2".getBytes(), "value2".getBytes());
}
final List<ColumnFamilyHandle> readOnlyColumnFamilyHandleList =
new ArrayList<>();
try (final RocksDB db2 = RocksDB.openReadOnly(
dbFolder.getRoot().getAbsolutePath(), cfDescriptors,
readOnlyColumnFamilyHandleList)) {
try (final ColumnFamilyOptions newCfOpts2 =
new ColumnFamilyOptions();
final ColumnFamilyOptions newCf2Opts2 =
new ColumnFamilyOptions()
) {
assertThat(db2.get("key2".getBytes())).isNull();
assertThat(db2.get(readOnlyColumnFamilyHandleList.get(0),
"key2".getBytes())).
isNull();
cfDescriptors.clear();
cfDescriptors.add(
new ColumnFamilyDescriptor(RocksDB.DEFAULT_COLUMN_FAMILY,
newCfOpts2));
cfDescriptors.add(new ColumnFamilyDescriptor("new_cf2".getBytes(),
newCf2Opts2));
columnFamilyHandleList.clear();
try (final RocksDB db = RocksDB.openReadOnly(
dbFolder.getRoot().getAbsolutePath(), cfDescriptors, columnFamilyHandleList)) {
assertThat(db.get("key2".getBytes())).isNull();
assertThat(db.get(columnFamilyHandleList.get(0), "key2".getBytes())).isNull();
}
final List<ColumnFamilyHandle> readOnlyColumnFamilyHandleList2
= new ArrayList<>();
try (final RocksDB db3 = RocksDB.openReadOnly(
dbFolder.getRoot().getAbsolutePath(), cfDescriptors,
readOnlyColumnFamilyHandleList2)) {
try {
assertThat(new String(db3.get(
readOnlyColumnFamilyHandleList2.get(1),
"key2".getBytes()))).isEqualTo("value2");
} finally {
for (final ColumnFamilyHandle columnFamilyHandle :
readOnlyColumnFamilyHandleList2) {
columnFamilyHandle.close();
}
}
}
} finally {
for (final ColumnFamilyHandle columnFamilyHandle :
readOnlyColumnFamilyHandleList) {
columnFamilyHandle.close();
}
}
}
} finally {
for (final ColumnFamilyHandle columnFamilyHandle :
columnFamilyHandleList) {
columnFamilyHandle.close();
}
}
cfDescriptors.clear();
cfDescriptors.add(new ColumnFamilyDescriptor(RocksDB.DEFAULT_COLUMN_FAMILY, cfOpts));
cfDescriptors.add(new ColumnFamilyDescriptor("new_cf2".getBytes(), cfOpts));
columnFamilyHandleList.clear();
try (final RocksDB db = RocksDB.openReadOnly(
dbFolder.getRoot().getAbsolutePath(), cfDescriptors, columnFamilyHandleList)) {
assertThat(new String(db.get(columnFamilyHandleList.get(1), "key2".getBytes())))
.isEqualTo("value2");
}
}
}
@Test(expected = RocksDBException.class)
public void failToWriteInReadOnly() throws RocksDBException {
try (final Options options = new Options()
.setCreateIfMissing(true)) {
try (final RocksDB db = RocksDB.open(options,
dbFolder.getRoot().getAbsolutePath())) {
//no-op
try (final Options options = new Options().setCreateIfMissing(true)) {
try (final RocksDB db = RocksDB.open(options, dbFolder.getRoot().getAbsolutePath())) {
// no-op
}
}
try (final ColumnFamilyOptions cfOpts = new ColumnFamilyOptions()) {
final List<ColumnFamilyDescriptor> cfDescriptors = Arrays.asList(
new ColumnFamilyDescriptor(RocksDB.DEFAULT_COLUMN_FAMILY, cfOpts)
);
final List<ColumnFamilyDescriptor> cfDescriptors =
Arrays.asList(new ColumnFamilyDescriptor(RocksDB.DEFAULT_COLUMN_FAMILY, cfOpts));
final List<ColumnFamilyHandle> readOnlyColumnFamilyHandleList =
new ArrayList<>();
try (final RocksDB rDb = RocksDB.openReadOnly(
dbFolder.getRoot().getAbsolutePath(), cfDescriptors,
readOnlyColumnFamilyHandleList)) {
try {
// test that put fails in readonly mode
rDb.put("key".getBytes(), "value".getBytes());
} finally {
for (final ColumnFamilyHandle columnFamilyHandle :
readOnlyColumnFamilyHandleList) {
columnFamilyHandle.close();
}
}
final List<ColumnFamilyHandle> readOnlyColumnFamilyHandleList = new ArrayList<>();
try (final RocksDB rDb = RocksDB.openReadOnly(dbFolder.getRoot().getAbsolutePath(),
cfDescriptors, readOnlyColumnFamilyHandleList)) {
// test that put fails in readonly mode
rDb.put("key".getBytes(), "value".getBytes());
}
}
}
@ -161,15 +106,7 @@ public class ReadOnlyTest {
try (final RocksDB rDb = RocksDB.openReadOnly(
dbFolder.getRoot().getAbsolutePath(), cfDescriptors,
readOnlyColumnFamilyHandleList)) {
try {
rDb.put(readOnlyColumnFamilyHandleList.get(0),
"key".getBytes(), "value".getBytes());
} finally {
for (final ColumnFamilyHandle columnFamilyHandle :
readOnlyColumnFamilyHandleList) {
columnFamilyHandle.close();
}
}
rDb.put(readOnlyColumnFamilyHandleList.get(0), "key".getBytes(), "value".getBytes());
}
}
}
@ -193,14 +130,7 @@ public class ReadOnlyTest {
try (final RocksDB rDb = RocksDB.openReadOnly(
dbFolder.getRoot().getAbsolutePath(), cfDescriptors,
readOnlyColumnFamilyHandleList)) {
try {
rDb.delete("key".getBytes());
} finally {
for (final ColumnFamilyHandle columnFamilyHandle :
readOnlyColumnFamilyHandleList) {
columnFamilyHandle.close();
}
}
rDb.delete("key".getBytes());
}
}
}
@ -223,15 +153,8 @@ public class ReadOnlyTest {
try (final RocksDB rDb = RocksDB.openReadOnly(
dbFolder.getRoot().getAbsolutePath(), cfDescriptors,
readOnlyColumnFamilyHandleList)) {
try {
rDb.delete(readOnlyColumnFamilyHandleList.get(0),
"key".getBytes());
} finally {
for (final ColumnFamilyHandle columnFamilyHandle :
readOnlyColumnFamilyHandleList) {
columnFamilyHandle.close();
}
}
}
}
}
@ -256,15 +179,8 @@ public class ReadOnlyTest {
readOnlyColumnFamilyHandleList);
final WriteBatch wb = new WriteBatch();
final WriteOptions wOpts = new WriteOptions()) {
try {
wb.put("key".getBytes(), "value".getBytes());
rDb.write(wOpts, wb);
} finally {
for (final ColumnFamilyHandle columnFamilyHandle :
readOnlyColumnFamilyHandleList) {
columnFamilyHandle.close();
}
}
}
}
}
@ -289,16 +205,9 @@ public class ReadOnlyTest {
readOnlyColumnFamilyHandleList);
final WriteBatch wb = new WriteBatch();
final WriteOptions wOpts = new WriteOptions()) {
try {
wb.put(readOnlyColumnFamilyHandleList.get(0), "key".getBytes(),
"value".getBytes());
rDb.write(wOpts, wb);
} finally {
for (final ColumnFamilyHandle columnFamilyHandle :
readOnlyColumnFamilyHandleList) {
columnFamilyHandle.close();
}
}
}
}
}
@ -318,14 +227,7 @@ public class ReadOnlyTest {
try (final DBOptions options = new DBOptions();
final RocksDB rDb = RocksDB.openReadOnly(options, dbFolder.getRoot().getAbsolutePath(),
cfDescriptors, readOnlyColumnFamilyHandleList, true);) {
try {
// no-op... should have raised an error as errorIfWalFileExists=true
} finally {
for (final ColumnFamilyHandle columnFamilyHandle : readOnlyColumnFamilyHandleList) {
columnFamilyHandle.close();
}
}
// no-op... should have raised an error as errorIfWalFileExists=true
}
}
}