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From chinmaykolhatkar <...@git.apache.org>
Subject [GitHub] apex-malhar pull request #335: [Review Only] APEXMALHAR-1701 Deduper with Ma...
Date Mon, 01 Aug 2016 14:43:22 GMT
Github user chinmaykolhatkar commented on a diff in the pull request:

    --- Diff: library/src/main/java/org/apache/apex/malhar/lib/dedup/AbstractDeduper.java
    @@ -0,0 +1,462 @@
    + * 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
    + * KIND, either express or implied.  See the License for the
    + * specific language governing permissions and limitations
    + * under the License.
    + */
    +package org.apache.apex.malhar.lib.dedup;
    +import java.util.Iterator;
    +import java.util.Map;
    +import java.util.Map.Entry;
    +import java.util.concurrent.ExecutionException;
    +import java.util.concurrent.Future;
    +import javax.validation.constraints.NotNull;
    +import org.slf4j.Logger;
    +import org.slf4j.LoggerFactory;
    +import org.apache.apex.malhar.lib.state.BucketedState;
    +import org.apache.apex.malhar.lib.state.managed.ManagedTimeUnifiedStateImpl;
    +import org.apache.apex.malhar.lib.state.managed.TimeBucketAssigner;
    +import org.apache.hadoop.classification.InterfaceStability.Evolving;
    +import com.google.common.base.Preconditions;
    +import com.google.common.collect.Maps;
    +import com.google.common.util.concurrent.Futures;
    +import com.datatorrent.api.AutoMetric;
    +import com.datatorrent.api.Context;
    +import com.datatorrent.api.Context.OperatorContext;
    +import com.datatorrent.api.DAG;
    +import com.datatorrent.api.DefaultInputPort;
    +import com.datatorrent.api.DefaultOutputPort;
    +import com.datatorrent.api.Operator;
    +import com.datatorrent.api.Operator.ActivationListener;
    +import com.datatorrent.api.annotation.OperatorAnnotation;
    +import com.datatorrent.api.annotation.OutputPortFieldAnnotation;
    +import com.datatorrent.lib.fileaccess.FileAccessFSImpl;
    +import com.datatorrent.lib.fileaccess.TFileImpl;
    +import com.datatorrent.netlet.util.Slice;
    + * Abstract class which allows de-duplicating incoming tuples based on a configured key.
    + * Also supports expiry mechanism based on a configurable expiry period configured using
{@link TimeBucketAssigner}
    --- End diff --
    It would be great is deduper logic can be described here. That's important piece of information
that user want to have.

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