| /* |
| * 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.phoenix.schema; |
| |
| import java.sql.SQLException; |
| import java.util.Iterator; |
| import java.util.List; |
| import java.util.concurrent.locks.ReadWriteLock; |
| import java.util.concurrent.locks.ReentrantReadWriteLock; |
| |
| import javax.annotation.concurrent.GuardedBy; |
| |
| import org.apache.phoenix.parse.PFunction; |
| import org.apache.phoenix.parse.PSchema; |
| |
| public class PSynchronizedMetaData implements PMetaData { |
| |
| @GuardedBy("readWriteLock") |
| private PMetaData delegate; |
| private final ReadWriteLock readWriteLock = new ReentrantReadWriteLock(); |
| |
| public PSynchronizedMetaData(PMetaData metadata) { |
| this.delegate = metadata; |
| } |
| |
| @Override |
| public Iterator<PTable> iterator() { |
| readWriteLock.readLock().lock(); |
| try { |
| return delegate.iterator(); |
| } |
| finally { |
| readWriteLock.readLock().unlock(); |
| } |
| } |
| |
| @Override |
| public int size() { |
| readWriteLock.readLock().lock(); |
| try { |
| return delegate.size(); |
| } |
| finally { |
| readWriteLock.readLock().unlock(); |
| } |
| } |
| |
| @Override |
| public PMetaData clone() { |
| readWriteLock.readLock().lock(); |
| try { |
| return delegate.clone(); |
| } |
| finally { |
| readWriteLock.readLock().unlock(); |
| } |
| } |
| |
| @Override |
| public void addTable(PTable table, long resolvedTime) throws SQLException { |
| readWriteLock.writeLock().lock(); |
| try { |
| delegate.addTable(table, resolvedTime); |
| } |
| finally { |
| readWriteLock.writeLock().unlock(); |
| } |
| } |
| |
| @Override |
| public PTableRef getTableRef(PTableKey key) throws TableNotFoundException { |
| readWriteLock.readLock().lock(); |
| try { |
| return delegate.getTableRef(key); |
| } |
| finally { |
| readWriteLock.readLock().unlock(); |
| } |
| } |
| |
| @Override |
| public void updateResolvedTimestamp(PTable table, long resolvedTimestamp) throws SQLException { |
| readWriteLock.writeLock().lock(); |
| try { |
| delegate.updateResolvedTimestamp(table, resolvedTimestamp); |
| } |
| finally { |
| readWriteLock.writeLock().unlock(); |
| } |
| } |
| |
| @Override |
| public void pruneTables(Pruner pruner) { |
| readWriteLock.writeLock().lock(); |
| try { |
| delegate.pruneTables(pruner); |
| } |
| finally { |
| readWriteLock.writeLock().unlock(); |
| } |
| } |
| |
| @Override |
| public PFunction getFunction(PTableKey key) throws FunctionNotFoundException { |
| readWriteLock.readLock().lock(); |
| try { |
| return delegate.getFunction(key); |
| } |
| finally { |
| readWriteLock.readLock().unlock(); |
| } |
| } |
| |
| @Override |
| public void removeTable(PName tenantId, String tableName, String parentTableName, |
| long tableTimeStamp) throws SQLException { |
| readWriteLock.writeLock().lock(); |
| try { |
| delegate.removeTable(tenantId, tableName, parentTableName, tableTimeStamp); |
| } |
| finally { |
| readWriteLock.writeLock().unlock(); |
| } |
| } |
| |
| @Override |
| public void pruneFunctions(Pruner pruner) { |
| readWriteLock.writeLock().lock(); |
| try { |
| delegate.pruneFunctions(pruner); |
| } |
| finally { |
| readWriteLock.writeLock().unlock(); |
| } |
| } |
| |
| @Override |
| public long getAge(PTableRef ref) { |
| readWriteLock.readLock().lock(); |
| try { |
| return delegate.getAge(ref); |
| } |
| finally { |
| readWriteLock.readLock().unlock(); |
| } |
| } |
| |
| @Override |
| public PSchema getSchema(PTableKey key) throws SchemaNotFoundException { |
| readWriteLock.readLock().lock(); |
| try { |
| return delegate.getSchema(key); |
| } |
| finally { |
| readWriteLock.readLock().unlock(); |
| } |
| } |
| |
| @Override |
| public void removeColumn(PName tenantId, String tableName, List<PColumn> columnsToRemove, |
| long tableTimeStamp, long tableSeqNum, long resolvedTime) throws SQLException { |
| readWriteLock.writeLock().lock(); |
| try { |
| delegate.removeColumn(tenantId, tableName, columnsToRemove, tableTimeStamp, tableSeqNum, |
| resolvedTime); |
| } |
| finally { |
| readWriteLock.writeLock().unlock(); |
| } |
| } |
| |
| @Override |
| public void addFunction(PFunction function) throws SQLException { |
| readWriteLock.writeLock().lock(); |
| try { |
| delegate.addFunction(function); |
| } |
| finally { |
| readWriteLock.writeLock().unlock(); |
| } |
| } |
| |
| @Override |
| public void removeFunction(PName tenantId, String function, long functionTimeStamp) |
| throws SQLException { |
| readWriteLock.writeLock().lock(); |
| try { |
| delegate.removeFunction(tenantId, function, functionTimeStamp); |
| } |
| finally { |
| readWriteLock.writeLock().unlock(); |
| } |
| } |
| |
| @Override |
| public void addSchema(PSchema schema) throws SQLException { |
| readWriteLock.writeLock().lock(); |
| try { |
| delegate.addSchema(schema); |
| } |
| finally { |
| readWriteLock.writeLock().unlock(); |
| } |
| } |
| |
| @Override |
| public void removeSchema(PSchema schema, long schemaTimeStamp) { |
| readWriteLock.writeLock().lock(); |
| try { |
| delegate.removeSchema(schema, schemaTimeStamp); |
| } |
| finally { |
| readWriteLock.writeLock().unlock(); |
| } |
| } |
| |
| } |