/**
* 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.crunch.io.avro;
import java.io.IOException;
import org.apache.avro.mapred.AvroJob;
import org.apache.crunch.io.CompositePathIterable;
import org.apache.crunch.io.ReadableSource;
import org.apache.crunch.io.impl.FileSourceImpl;
import org.apache.crunch.io.impl.InputBundle;
import org.apache.crunch.types.avro.AvroInputFormat;
import org.apache.crunch.types.avro.AvroType;
import org.apache.crunch.types.avro.Avros;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.fs.FileSystem;
import org.apache.hadoop.fs.Path;
public class AvroFileSource<T> extends FileSourceImpl<T> implements ReadableSource<T> {
public AvroFileSource(Path path, AvroType<T> ptype) {
super(path, ptype, new InputBundle(AvroInputFormat.class)
.set(AvroJob.INPUT_IS_REFLECT, String.valueOf(ptype.hasReflect()))
.set(AvroJob.INPUT_SCHEMA, ptype.getSchema().toString())
.set(Avros.REFLECT_DATA_FACTORY_CLASS, Avros.REFLECT_DATA_FACTORY.getClass().getName()));
}
@Override
public String toString() {
return "Avro(" + path.toString() + ")";
}
@Override
public Iterable<T> read(Configuration conf) throws IOException {
FileSystem fs = path.getFileSystem(conf);
return CompositePathIterable.create(fs, path, new AvroFileReaderFactory<T>((AvroType<T>) ptype, conf));
}
}