/*
* 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.
*
* Copyright 2013 Near Infinity Corporation.
*/
package com.nearinfinity.honeycomb.mysql.generators;
import java.nio.ByteBuffer;
import java.util.Map;
import java.util.UUID;
import net.java.quickcheck.Generator;
import com.google.common.collect.ImmutableMap;
import com.nearinfinity.honeycomb.mysql.Row;
import com.nearinfinity.honeycomb.mysql.schema.ColumnSchema;
import com.nearinfinity.honeycomb.mysql.schema.TableSchema;
public class RowGenerator implements Generator<Row> {
private static final Generator<UUID> uuids = new UUIDGenerator();
private final Map<String, Generator<ByteBuffer>> recordGenerators;
public RowGenerator(TableSchema schema) {
super();
ImmutableMap.Builder<String, Generator<ByteBuffer>> recordGenerators = ImmutableMap.builder();
for (ColumnSchema column : schema.getColumns()) {
recordGenerators.put(column.getColumnName(), new FieldGenerator(column));
}
this.recordGenerators = recordGenerators.build();
}
@Override
public Row next() {
ImmutableMap.Builder<String, ByteBuffer> records = ImmutableMap.builder();
for (Map.Entry<String, Generator<ByteBuffer>> record : recordGenerators.entrySet()) {
ByteBuffer nextValue = record.getValue().next();
if (nextValue != null) {
records.put(record.getKey(), nextValue);
}
}
return new Row(records.build(), uuids.next());
}
}