Sets the RocksDB log level. Default level is INFO
+ * + * @param infoLogLevel log level to set. + * @return the instance of the current Object. + */ + Object setInfoLogLevel(InfoLogLevel infoLogLevel); + + /** + *Returns currently set log level.
+ * @return {@link org.rocksdb.InfoLogLevel} instance. + */ + InfoLogLevel infoLogLevel(); + /** * Number of open files that can be used by the DB. You may need to * increase this if your database has a large working set. Value -1 means diff --git a/java/org/rocksdb/InfoLogLevel.java b/java/org/rocksdb/InfoLogLevel.java new file mode 100644 index 000000000..e67063c68 --- /dev/null +++ b/java/org/rocksdb/InfoLogLevel.java @@ -0,0 +1,47 @@ +package org.rocksdb; + +/** + * RocksDB log levels. + */ +public enum InfoLogLevel { + DEBUG_LEVEL((byte)0), + INFO_LEVEL((byte)1), + WARN_LEVEL((byte)2), + ERROR_LEVEL((byte)3), + FATAL_LEVEL((byte)4), + NUM_INFO_LOG_LEVELS((byte)5); + + private final byte value_; + + private InfoLogLevel(byte value) { + value_ = value; + } + + /** + * Returns the byte value of the enumerations value + * + * @return byte representation + */ + public byte getValue() { + return value_; + } + + /** + * Get InfoLogLevel by byte value. + * + * @param value byte representation of InfoLogLevel. + * + * @return {@link org.rocksdb.InfoLogLevel} instance or null. + * @throws java.lang.IllegalArgumentException if an invalid + * value is provided. + */ + public static InfoLogLevel getInfoLogLevel(byte value) { + for (InfoLogLevel infoLogLevel : InfoLogLevel.values()) { + if (infoLogLevel.getValue() == value){ + return infoLogLevel; + } + } + throw new IllegalArgumentException( + "Illegal value provided for InfoLogLevel."); + } +} diff --git a/java/org/rocksdb/Options.java b/java/org/rocksdb/Options.java index c5ea7216e..55f3defd2 100644 --- a/java/org/rocksdb/Options.java +++ b/java/org/rocksdb/Options.java @@ -616,6 +616,20 @@ public class Options extends RocksObject return this; } + @Override + public Options setInfoLogLevel(InfoLogLevel infoLogLevel) { + assert(isInitialized()); + setInfoLogLevel(nativeHandle_, infoLogLevel.getValue()); + return this; + } + + @Override + public InfoLogLevel infoLogLevel() { + assert(isInitialized()); + return InfoLogLevel.getInfoLogLevel( + infoLogLevel(nativeHandle_)); + } + @Override public String memTableFactoryName() { assert(isInitialized()); @@ -1025,6 +1039,8 @@ public class Options extends RocksObject private native boolean paranoidChecks(long handle); private native void setRateLimiter(long handle, long rateLimiterHandle); + private native void setInfoLogLevel(long handle, byte logLevel); + private native byte infoLogLevel(long handle); private native void setMaxOpenFiles(long handle, int maxOpenFiles); private native int maxOpenFiles(long handle); private native void setMaxTotalWalSize(long handle, diff --git a/java/org/rocksdb/test/InfoLogLevelTest.java b/java/org/rocksdb/test/InfoLogLevelTest.java new file mode 100644 index 000000000..c2da83979 --- /dev/null +++ b/java/org/rocksdb/test/InfoLogLevelTest.java @@ -0,0 +1,98 @@ +package org.rocksdb.test; + +import org.junit.ClassRule; +import org.junit.Rule; +import org.junit.Test; +import org.junit.rules.TemporaryFolder; +import org.rocksdb.*; + +import java.io.IOException; + +import static java.nio.file.Files.readAllBytes; +import static java.nio.file.Paths.get; +import static org.assertj.core.api.Assertions.assertThat; + +public class InfoLogLevelTest { + + @ClassRule + public static final RocksMemoryResource rocksMemoryResource = + new RocksMemoryResource(); + + @Rule + public TemporaryFolder dbFolder = new TemporaryFolder(); + + @Test + public void testInfoLogLevel() throws RocksDBException, + IOException { + RocksDB db = null; + try { + db = RocksDB.open(dbFolder.getRoot().getAbsolutePath()); + db.put("key".getBytes(), "value".getBytes()); + assertThat(getLogContents()).isNotEmpty(); + } finally { + if (db != null) { + db.close(); + } + } + } + + @Test + public void testFatalLogLevel() throws RocksDBException, + IOException { + RocksDB db = null; + Options options = null; + try { + options = new Options(). + setCreateIfMissing(true). + setInfoLogLevel(InfoLogLevel.FATAL_LEVEL); + assertThat(options.infoLogLevel()). + isEqualTo(InfoLogLevel.FATAL_LEVEL); + db = RocksDB.open(options, + dbFolder.getRoot().getAbsolutePath()); + db.put("key".getBytes(), "value".getBytes()); + assertThat(getLogContents()).isEmpty(); + } finally { + if (db != null) { + db.close(); + } + } + } + + @Test + public void testFatalLogLevelWithDBOptions() + throws RocksDBException, IOException { + RocksDB db = null; + Options options = null; + DBOptions dbOptions = null; + try { + dbOptions = new DBOptions(). + setInfoLogLevel(InfoLogLevel.FATAL_LEVEL); + options = new Options(dbOptions, + new ColumnFamilyOptions()). + setCreateIfMissing(true); + assertThat(dbOptions.infoLogLevel()). + isEqualTo(InfoLogLevel.FATAL_LEVEL); + assertThat(options.infoLogLevel()). + isEqualTo(InfoLogLevel.FATAL_LEVEL); + db = RocksDB.open(options, + dbFolder.getRoot().getAbsolutePath()); + db.put("key".getBytes(), "value".getBytes()); + assertThat(getLogContents()).isEmpty(); + } finally { + if (db != null) { + db.close(); + } + } + } + + /** + * Read LOG file contents into String. + * + * @return LOG file contents as String. + * @throws IOException if file is not found. + */ + private String getLogContents() throws IOException { + return new String(readAllBytes(get( + dbFolder.getRoot().getAbsolutePath()+ "/LOG"))); + } +} diff --git a/java/rocksjni/options.cc b/java/rocksjni/options.cc index d725cc305..50bab7a1b 100644 --- a/java/rocksjni/options.cc +++ b/java/rocksjni/options.cc @@ -625,6 +625,28 @@ void Java_org_rocksdb_Options_setRateLimiter( reinterpret_cast