| /* |
| * 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.hadoop.hbase.master; |
| |
| import java.io.IOException; |
| import java.util.List; |
| import org.apache.hadoop.hbase.NamespaceDescriptor; |
| import org.apache.hadoop.hbase.NamespaceNotFoundException; |
| import org.apache.hadoop.hbase.ServiceNotRunningException; |
| import org.apache.hadoop.hbase.master.procedure.CreateNamespaceProcedure; |
| import org.apache.hadoop.hbase.master.procedure.DeleteNamespaceProcedure; |
| import org.apache.hadoop.hbase.master.procedure.MasterProcedureEnv; |
| import org.apache.hadoop.hbase.master.procedure.ModifyNamespaceProcedure; |
| import org.apache.hadoop.hbase.master.procedure.ProcedurePrepareLatch; |
| import org.apache.hadoop.hbase.procedure2.Procedure; |
| import org.apache.hadoop.hbase.procedure2.ProcedureExecutor; |
| import org.apache.hadoop.hbase.util.NonceKey; |
| import org.apache.yetus.audience.InterfaceAudience; |
| |
| import org.apache.hbase.thirdparty.com.google.common.collect.ImmutableList; |
| import org.apache.hbase.thirdparty.com.google.common.util.concurrent.AbstractService; |
| |
| @InterfaceAudience.Private |
| class ClusterSchemaServiceImpl extends AbstractService implements ClusterSchemaService { |
| |
| private final TableNamespaceManager tableNamespaceManager; |
| private final MasterServices masterServices; |
| |
| ClusterSchemaServiceImpl(final MasterServices masterServices) { |
| this.masterServices = masterServices; |
| this.tableNamespaceManager = new TableNamespaceManager(masterServices); |
| } |
| |
| // All below are synchronized so consistent view on whether running or not. |
| |
| private synchronized void checkIsRunning() throws ServiceNotRunningException { |
| if (!isRunning()) { |
| throw new ServiceNotRunningException(); |
| } |
| } |
| |
| @Override |
| protected synchronized void doStart() { |
| try { |
| notifyStarted(); |
| this.tableNamespaceManager.start(); |
| } catch (IOException | InterruptedException e) { |
| notifyFailed(e); |
| } |
| } |
| |
| @Override |
| protected void doStop() { |
| // This is no stop for the table manager. |
| notifyStopped(); |
| } |
| |
| @Override |
| public TableNamespaceManager getTableNamespaceManager() { |
| return this.tableNamespaceManager; |
| } |
| |
| private long submitProcedure(final Procedure<MasterProcedureEnv> procedure, |
| final NonceKey nonceKey) throws ServiceNotRunningException { |
| checkIsRunning(); |
| ProcedureExecutor<MasterProcedureEnv> pe = this.masterServices.getMasterProcedureExecutor(); |
| return pe.submitProcedure(procedure, nonceKey); |
| } |
| |
| @Override |
| public long createNamespace(NamespaceDescriptor namespaceDescriptor, final NonceKey nonceKey, |
| final ProcedurePrepareLatch latch) throws IOException { |
| return submitProcedure(new CreateNamespaceProcedure( |
| this.masterServices.getMasterProcedureExecutor().getEnvironment(), namespaceDescriptor, |
| latch), nonceKey); |
| } |
| |
| @Override |
| public long modifyNamespace(NamespaceDescriptor namespaceDescriptor, final NonceKey nonceKey, |
| final ProcedurePrepareLatch latch) throws IOException { |
| return submitProcedure(new ModifyNamespaceProcedure( |
| this.masterServices.getMasterProcedureExecutor().getEnvironment(), namespaceDescriptor, |
| latch), nonceKey); |
| } |
| |
| @Override |
| public long deleteNamespace(String name, final NonceKey nonceKey, |
| final ProcedurePrepareLatch latch) throws IOException { |
| return submitProcedure(new DeleteNamespaceProcedure( |
| this.masterServices.getMasterProcedureExecutor().getEnvironment(), name, latch), nonceKey); |
| } |
| |
| @Override |
| public NamespaceDescriptor getNamespace(String name) throws IOException { |
| NamespaceDescriptor nsd = getTableNamespaceManager().get(name); |
| if (nsd == null) throw new NamespaceNotFoundException(name); |
| return nsd; |
| } |
| |
| @Override |
| public List<NamespaceDescriptor> getNamespaces() throws IOException { |
| checkIsRunning(); |
| return getTableNamespaceManager().list().stream() |
| .sorted(NamespaceDescriptor.NAMESPACE_DESCRIPTOR_COMPARATOR) |
| .collect(ImmutableList.toImmutableList()); |
| } |
| } |