| /* |
| * 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.carbondata.core.locks; |
| |
| import org.apache.carbondata.common.logging.LogService; |
| import org.apache.carbondata.common.logging.LogServiceFactory; |
| import org.apache.carbondata.core.metadata.AbsoluteTableIdentifier; |
| import org.apache.carbondata.core.util.CarbonProperties; |
| |
| /** |
| * This class contains all carbon lock utilities |
| */ |
| public class CarbonLockUtil { |
| |
| private static final LogService LOGGER = |
| LogServiceFactory.getLogService(CarbonLockUtil.class.getName()); |
| |
| /** |
| * unlocks given file |
| * |
| * @param carbonLock |
| */ |
| public static void fileUnlock(ICarbonLock carbonLock, String locktype) { |
| if (carbonLock.unlock()) { |
| if (locktype.equals(LockUsage.METADATA_LOCK)) { |
| LOGGER.info("Metadata lock has been successfully released"); |
| } else if (locktype.equals(LockUsage.TABLE_STATUS_LOCK)) { |
| LOGGER.info("Table status lock has been successfully released"); |
| } |
| else if (locktype.equals(LockUsage.CLEAN_FILES_LOCK)) { |
| LOGGER.info("Clean files lock has been successfully released"); |
| } |
| else if (locktype.equals(LockUsage.DELETE_SEGMENT_LOCK)) { |
| LOGGER.info("Delete segments lock has been successfully released"); |
| } |
| } else { |
| if (locktype.equals(LockUsage.METADATA_LOCK)) { |
| LOGGER.error("Not able to release the metadata lock"); |
| } else if (locktype.equals(LockUsage.TABLE_STATUS_LOCK)) { |
| LOGGER.error("Not able to release the table status lock"); |
| } |
| else if (locktype.equals(LockUsage.CLEAN_FILES_LOCK)) { |
| LOGGER.info("Not able to release the clean files lock"); |
| } |
| else if (locktype.equals(LockUsage.DELETE_SEGMENT_LOCK)) { |
| LOGGER.info("Not able to release the delete segments lock"); |
| } |
| } |
| } |
| |
| /** |
| * Given a lock type this method will return a new lock object if not acquired by any other |
| * operation |
| * |
| * @param absoluteTableIdentifier |
| * @param lockType |
| * @return |
| */ |
| public static ICarbonLock getLockObject(AbsoluteTableIdentifier absoluteTableIdentifier, |
| String lockType, String errorMsg) { |
| ICarbonLock carbonLock = CarbonLockFactory.getCarbonLockObj(absoluteTableIdentifier, lockType); |
| LOGGER.info("Trying to acquire lock: " + lockType + "for table: " + |
| absoluteTableIdentifier.toString()); |
| if (carbonLock.lockWithRetries()) { |
| LOGGER.info("Successfully acquired the lock " + lockType + "for table: " + |
| absoluteTableIdentifier.toString()); |
| } else { |
| LOGGER.error(errorMsg); |
| throw new RuntimeException(errorMsg); |
| } |
| return carbonLock; |
| } |
| |
| /** |
| * Get and lock with default error message |
| */ |
| public static ICarbonLock getLockObject(AbsoluteTableIdentifier identifier, String lockType) { |
| return getLockObject(identifier, |
| lockType, |
| "Acquire table lock failed after retry, please try after some time"); |
| } |
| |
| /** |
| * Get the value for the property. If NumberFormatException is thrown then return default value. |
| */ |
| public static int getLockProperty(String property, int defaultValue) { |
| try { |
| return Integer.parseInt(CarbonProperties.getInstance() |
| .getProperty(property)); |
| } catch (NumberFormatException e) { |
| return defaultValue; |
| } |
| } |
| |
| } |