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From: devtagare <git@git.apache.org>
To: dev@apex.incubator.apache.org
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References: <git-pr-211-incubator-apex-malhar@git.apache.org>
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Subject: [GitHub] incubator-apex-malhar pull request: APEXMALHAR-2011-2012
 Avro to P...
Content-Type: text/plain
Message-Id: <20160329174400.0EDE4DFC6E@git1-us-west.apache.org>
Date: Tue, 29 Mar 2016 17:44:00 +0000 (UTC)

Github user devtagare commented on a diff in the pull request:

    https://github.com/apache/incubator-apex-malhar/pull/211#discussion_r57766719
  
    --- Diff: contrib/src/main/java/com/datatorrent/contrib/avro/AvroFileInputOperator.java ---
    @@ -0,0 +1,159 @@
    +/**
    + * 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.datatorrent.contrib.avro;
    +
    +import java.io.IOException;
    +import java.io.InputStream;
    +
    +import org.slf4j.Logger;
    +import org.slf4j.LoggerFactory;
    +
    +import org.apache.avro.AvroRuntimeException;
    +import org.apache.avro.file.DataFileStream;
    +import org.apache.avro.generic.GenericDatumReader;
    +import org.apache.avro.generic.GenericRecord;
    +import org.apache.avro.io.DatumReader;
    +import org.apache.hadoop.classification.InterfaceStability;
    +import org.apache.hadoop.fs.Path;
    +
    +import com.datatorrent.api.AutoMetric;
    +import com.datatorrent.api.DefaultOutputPort;
    +import com.datatorrent.api.annotation.OutputPortFieldAnnotation;
    +import com.datatorrent.lib.io.fs.AbstractFileInputOperator;
    +
    +/**
    + * <p>
    + * Avro File Input Operator
    + * </p>
    + * A specific implementation of the AbstractFileInputOperator to read Avro
    + * container files.<br>
    + * No need to provide schema,its inferred from the file<br>
    + * Users can add the {@link IdempotentStorageManager.FSIdempotentStorageManager}
    + * to ensure exactly once semantics with a HDFS backed WAL.
    + * 
    + * @displayName AvroFileInputOperator
    + * @category Input
    + * @tags fs, file,avro, input operator
    + * @since 3.3.0
    + */
    +@InterfaceStability.Evolving
    +public class AvroFileInputOperator extends AbstractFileInputOperator<GenericRecord>
    +{
    +
    +  private transient long offset = 0L;
    +
    +  @AutoMetric
    +  int recordCnt = 0;
    +
    +  @AutoMetric
    +  int errorCnt = 0;
    +
    +  private transient DataFileStream<GenericRecord> avroDataStream;
    +  private transient GenericRecord record = null;
    +
    +  public final transient DefaultOutputPort<GenericRecord> output = new DefaultOutputPort<GenericRecord>();
    +
    +  @OutputPortFieldAnnotation(optional = true)
    --- End diff --
    
    Done


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