/**
* 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.metamodel.dynamodb;
import java.util.ArrayList;
import java.util.Collection;
import org.apache.metamodel.MetaModelException;
import org.apache.metamodel.create.AbstractTableCreationBuilder;
import org.apache.metamodel.schema.Column;
import org.apache.metamodel.schema.MutableTable;
import org.apache.metamodel.schema.Schema;
import org.apache.metamodel.schema.Table;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import com.amazonaws.services.dynamodbv2.AmazonDynamoDB;
import com.amazonaws.services.dynamodbv2.model.AttributeDefinition;
import com.amazonaws.services.dynamodbv2.model.CreateTableRequest;
import com.amazonaws.services.dynamodbv2.model.CreateTableResult;
import com.amazonaws.services.dynamodbv2.model.GlobalSecondaryIndex;
import com.amazonaws.services.dynamodbv2.model.KeySchemaElement;
import com.amazonaws.services.dynamodbv2.model.KeyType;
import com.amazonaws.services.dynamodbv2.model.ProvisionedThroughput;
import com.amazonaws.services.dynamodbv2.model.TableStatus;
class DynamoDbTableCreationBuilder extends AbstractTableCreationBuilder<DynamoDbUpdateCallback> {
private static final Logger logger = LoggerFactory.getLogger(DynamoDbTableCreationBuilder.class);
public DynamoDbTableCreationBuilder(DynamoDbUpdateCallback updateCallback, Schema schema, String name) {
super(updateCallback, schema, name);
}
@Override
public Table execute() throws MetaModelException {
final MutableTable table = getTable();
final String tableName = table.getName();
final Collection<AttributeDefinition> attributes = new ArrayList<>();
final Collection<KeySchemaElement> keySchema = new ArrayList<>();
final Collection<GlobalSecondaryIndex> globalSecondaryIndices = new ArrayList<>();
final long readCapacity = Long.parseLong(System.getProperty(
DynamoDbDataContext.SYSTEM_PROPERTY_THROUGHPUT_READ_CAPACITY, "5"));
final long writeCapacity = Long.parseLong(System.getProperty(
DynamoDbDataContext.SYSTEM_PROPERTY_THROUGHPUT_WRITE_CAPACITY, "5"));
final ProvisionedThroughput provisionedThroughput = new ProvisionedThroughput(readCapacity, writeCapacity);
final Column[] columns = table.getColumns();
for (Column column : columns) {
if (column.isPrimaryKey()) {
final KeyType keyType = getKeyType(column.getRemarks());
keySchema.add(new KeySchemaElement(column.getName(), keyType));
attributes.add(new AttributeDefinition(column.getName(), DynamoDbUtils.toAttributeType(column
.getType())));
}
}
final CreateTableRequest createTableRequest = new CreateTableRequest();
createTableRequest.setTableName(tableName);
createTableRequest.setAttributeDefinitions(attributes);
createTableRequest.setGlobalSecondaryIndexes(globalSecondaryIndices);
createTableRequest.setKeySchema(keySchema);
createTableRequest.setProvisionedThroughput(provisionedThroughput);
final AmazonDynamoDB client = getUpdateCallback().getDataContext().getDynamoDb();
final CreateTableResult createTableResult = client.createTable(createTableRequest);
// await the table creation to be "done".
{
String tableStatus = createTableResult.getTableDescription().getTableStatus();
while (TableStatus.CREATING.name().equals(tableStatus)) {
logger.debug("Waiting for table status to be ACTIVE. Currently: {}", tableStatus);
try {
Thread.sleep(300);
} catch (InterruptedException e) {
getUpdateCallback().setInterrupted(true);
}
tableStatus = client.describeTable(tableName).getTable().getTableStatus();
}
}
return table;
}
private KeyType getKeyType(String remarks) {
if ("RANGE".equals(remarks)) {
// default
return KeyType.RANGE;
}
return KeyType.HASH;
}
}