/**
* 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.trevni.tool;
import java.io.File;
import java.io.InputStream;
import java.io.PrintStream;
import java.util.List;
import org.apache.avro.Schema;
import org.apache.trevni.ColumnFileMetaData;
import org.apache.trevni.avro.AvroColumnWriter;
import org.apache.trevni.avro.RandomData;
/** Tool to create randomly populated Trevni file based on an Avro schema */
public class CreateRandomTool implements Tool {
@Override
public String getName() {
return "createrandom";
}
@Override
public String getShortDescription() {
return "Create a Trevni file filled with random instances of a schema.";
}
@Override
public int run(InputStream stdin, PrintStream out, PrintStream err,
List<String> args) throws Exception {
if (args.size() != 3) {
err.println("Usage: schemaFile count outputFile");
return 1;
}
File schemaFile = new File(args.get(0));
int count = Integer.parseInt(args.get(1));
File outputFile = new File(args.get(2));
Schema schema = Schema.parse(schemaFile);
AvroColumnWriter<Object> writer =
new AvroColumnWriter<Object>(schema, new ColumnFileMetaData());
for (Object datum : new RandomData(schema, count))
writer.write(datum);
writer.writeTo(outputFile);
return 0;
}
}