1 | /** |
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2 | * Licensed to the Apache Software Foundation (ASF) under one |
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3 | * or more contributor license agreements. See the NOTICE file |
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4 | * distributed with this work for additional information |
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5 | * regarding copyright ownership. The ASF licenses this file |
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6 | * to you under the Apache License, Version 2.0 (the |
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7 | * "License"); you may not use this file except in compliance |
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8 | * with the License. You may obtain a copy of the License at |
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9 | * |
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10 | * http://www.apache.org/licenses/LICENSE-2.0 |
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11 | * |
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12 | * Unless required by applicable law or agreed to in writing, software |
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13 | * distributed under the License is distributed on an "AS IS" BASIS, |
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14 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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15 | * See the License for the specific language governing permissions and |
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16 | * limitations under the License. |
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17 | */ |
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18 | |
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19 | package org.apache.hadoop.mapred.lib.aggregate; |
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20 | |
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21 | import org.apache.hadoop.io.Text; |
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22 | import java.util.ArrayList; |
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23 | import java.util.Map.Entry; |
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24 | |
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25 | public class AggregatorTests extends ValueAggregatorBaseDescriptor { |
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26 | |
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27 | public ArrayList<Entry<Text, Text>> generateKeyValPairs(Object key, Object val) { |
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28 | ArrayList<Entry<Text, Text>> retv = new ArrayList<Entry<Text, Text>>(); |
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29 | String [] words = val.toString().split(" "); |
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30 | |
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31 | String countType; |
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32 | String id; |
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33 | Entry<Text, Text> e; |
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34 | |
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35 | for (String word: words) { |
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36 | long numVal = Long.parseLong(word); |
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37 | countType = LONG_VALUE_SUM; |
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38 | id = "count_" + word; |
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39 | e = generateEntry(countType, id, ONE); |
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40 | if (e != null) { |
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41 | retv.add(e); |
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42 | } |
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43 | countType = LONG_VALUE_MAX; |
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44 | id = "max"; |
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45 | e = generateEntry(countType, id, new Text(word)); |
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46 | if (e != null) { |
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47 | retv.add(e); |
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48 | } |
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49 | |
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50 | countType = LONG_VALUE_MIN; |
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51 | id = "min"; |
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52 | e = generateEntry(countType, id, new Text(word)); |
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53 | if (e != null) { |
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54 | retv.add(e); |
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55 | } |
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56 | |
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57 | countType = STRING_VALUE_MAX; |
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58 | id = "value_as_string_max"; |
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59 | e = generateEntry(countType, id, new Text(""+numVal)); |
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60 | if (e != null) { |
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61 | retv.add(e); |
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62 | } |
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63 | |
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64 | countType = STRING_VALUE_MIN; |
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65 | id = "value_as_string_min"; |
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66 | e = generateEntry(countType, id, new Text(""+numVal)); |
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67 | if (e != null) { |
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68 | retv.add(e); |
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69 | } |
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70 | |
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71 | countType = UNIQ_VALUE_COUNT; |
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72 | id = "uniq_count"; |
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73 | e = generateEntry(countType, id, new Text(word)); |
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74 | if (e != null) { |
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75 | retv.add(e); |
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76 | } |
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77 | |
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78 | countType = VALUE_HISTOGRAM; |
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79 | id = "histogram"; |
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80 | e = generateEntry(countType, id, new Text(word)); |
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81 | if (e != null) { |
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82 | retv.add(e); |
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83 | } |
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84 | } |
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85 | return retv; |
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86 | } |
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87 | |
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88 | } |
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