| // 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 com.cloudera.impala.analysis; |
| |
| package org.apache.impala.analysis; |
| |
| import org.apache.impala.authorization.Privilege; |
| import org.apache.impala.catalog.TableLoadingException; |
| import org.apache.impala.catalog.FeFsTable; |
| import org.apache.impala.catalog.FeTable; |
| import org.apache.impala.common.AnalysisException; |
| import com.google.common.base.Preconditions; |
| |
| import static org.apache.impala.analysis.ToSqlOptions.DEFAULT; |
| |
| /** |
| * Base class for PartitionSpec and PartitionSet containing the partition |
| * specifications of related DDL operations. |
| */ |
| public abstract class PartitionSpecBase extends StmtNode { |
| protected FeFsTable table_; |
| protected TableName tableName_; |
| protected Boolean partitionShouldExist_; |
| protected Privilege privilegeRequirement_; |
| // The value Hive is configured to use for NULL partition key values. |
| // Set during analysis. |
| protected String nullPartitionKeyValue_; |
| |
| public void setTableName(TableName tableName) {this.tableName_ = tableName; } |
| public TableName getTableName() { return tableName_; } |
| |
| // The value Hive is configured to use for NULL partition key values. |
| // Set during analysis. |
| public String getNullPartitionKeyValue() { |
| Preconditions.checkNotNull(nullPartitionKeyValue_); |
| return nullPartitionKeyValue_; |
| } |
| |
| // If set, an additional analysis check will be performed to validate the target table |
| // contains the given partition spec. |
| public void setPartitionShouldExist() { partitionShouldExist_ = Boolean.TRUE; } |
| |
| // If set, an additional analysis check will be performed to validate the target table |
| // does not contain the given partition spec. |
| public void setPartitionShouldNotExist() { partitionShouldExist_ = Boolean.FALSE; } |
| |
| public boolean getPartitionShouldExist() { |
| return partitionShouldExist_ != null && partitionShouldExist_; |
| } |
| |
| // Set the privilege requirement for this partition spec. Must be set prior to |
| // analysis. |
| public void setPrivilegeRequirement(Privilege privilege) { |
| privilegeRequirement_ = privilege; |
| } |
| |
| @Override |
| public void analyze(Analyzer analyzer) throws AnalysisException { |
| Preconditions.checkNotNull(tableName_); |
| Preconditions.checkNotNull(privilegeRequirement_); |
| |
| // Skip adding an audit event when analyzing partitions. The parent table should |
| // be audited outside of the PartitionSpec. |
| FeTable table; |
| try { |
| table = analyzer.getTable(tableName_, /* add access event */ false, |
| /* add column-level privilege */ false, privilegeRequirement_); |
| } catch (TableLoadingException e) { |
| throw new AnalysisException(e.getMessage(), e); |
| } |
| |
| // Make sure the target table is partitioned. |
| if (table.getMetaStoreTable().getPartitionKeysSize() == 0) { |
| throw new AnalysisException("Table is not partitioned: " + tableName_); |
| } |
| |
| // Only HDFS tables are partitioned. |
| Preconditions.checkState(table instanceof FeFsTable); |
| table_ = (FeFsTable) table; |
| nullPartitionKeyValue_ = table_.getNullPartitionKeyValue(); |
| } |
| |
| @Override |
| public final String toSql() { |
| return toSql(DEFAULT); |
| } |
| |
| @Override |
| public abstract String toSql(ToSqlOptions options); |
| } |