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| <div class="title">DataSink.java</div> </div> |
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| <a href="DataSink_8java.html">Go to the documentation of this file.</a><div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span> <span class="comment">// Copyright 2012 Cloudera Inc.</span></div> |
| <div class="line"><a name="l00002"></a><span class="lineno"> 2</span> <span class="comment">//</span></div> |
| <div class="line"><a name="l00003"></a><span class="lineno"> 3</span> <span class="comment">// Licensed under the Apache License, Version 2.0 (the "License");</span></div> |
| <div class="line"><a name="l00004"></a><span class="lineno"> 4</span> <span class="comment">// you may not use this file except in compliance with the License.</span></div> |
| <div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="comment">// You may obtain a copy of the License at</span></div> |
| <div class="line"><a name="l00006"></a><span class="lineno"> 6</span> <span class="comment">//</span></div> |
| <div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="comment">// http://www.apache.org/licenses/LICENSE-2.0</span></div> |
| <div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="comment">//</span></div> |
| <div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="comment">// Unless required by applicable law or agreed to in writing, software</span></div> |
| <div class="line"><a name="l00010"></a><span class="lineno"> 10</span> <span class="comment">// distributed under the License is distributed on an "AS IS" BASIS,</span></div> |
| <div class="line"><a name="l00011"></a><span class="lineno"> 11</span> <span class="comment">// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.</span></div> |
| <div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="comment">// See the License for the specific language governing permissions and</span></div> |
| <div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="comment">// limitations under the License.</span></div> |
| <div class="line"><a name="l00014"></a><span class="lineno"> 14</span> </div> |
| <div class="line"><a name="l00015"></a><span class="lineno"> 15</span> <span class="keyword">package </span>com.cloudera.impala.planner;</div> |
| <div class="line"><a name="l00016"></a><span class="lineno"> 16</span> </div> |
| <div class="line"><a name="l00017"></a><span class="lineno"> 17</span> <span class="keyword">import</span> java.util.List;</div> |
| <div class="line"><a name="l00018"></a><span class="lineno"> 18</span> </div> |
| <div class="line"><a name="l00019"></a><span class="lineno"> 19</span> <span class="keyword">import</span> <a class="code" href="classcom_1_1cloudera_1_1impala_1_1analysis_1_1Expr.html">com.cloudera.impala.analysis.Expr</a>;</div> |
| <div class="line"><a name="l00020"></a><span class="lineno"> 20</span> <span class="keyword">import</span> <a class="code" href="classcom_1_1cloudera_1_1impala_1_1catalog_1_1HBaseTable.html">com.cloudera.impala.catalog.HBaseTable</a>;</div> |
| <div class="line"><a name="l00021"></a><span class="lineno"> 21</span> <span class="keyword">import</span> <a class="code" href="classcom_1_1cloudera_1_1impala_1_1catalog_1_1HdfsTable.html">com.cloudera.impala.catalog.HdfsTable</a>;</div> |
| <div class="line"><a name="l00022"></a><span class="lineno"> 22</span> <span class="keyword">import</span> <a class="code" href="classcom_1_1cloudera_1_1impala_1_1catalog_1_1Table.html">com.cloudera.impala.catalog.Table</a>;</div> |
| <div class="line"><a name="l00023"></a><span class="lineno"> 23</span> <span class="keyword">import</span> com.cloudera.impala.thrift.TDataSink;</div> |
| <div class="line"><a name="l00024"></a><span class="lineno"> 24</span> <span class="keyword">import</span> com.cloudera.impala.thrift.TExplainLevel;</div> |
| <div class="line"><a name="l00025"></a><span class="lineno"> 25</span> <span class="keyword">import</span> com.google.common.base.Preconditions;</div> |
| <div class="line"><a name="l00026"></a><span class="lineno"> 26</span> </div> |
| <div class="line"><a name="l00034"></a><span class="lineno"><a class="line" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1DataSink.html"> 34</a></span> <span class="keyword">public</span> <span class="keyword">abstract</span> <span class="keyword">class </span><a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1DataSink.html">DataSink</a> {</div> |
| <div class="line"><a name="l00035"></a><span class="lineno"> 35</span> </div> |
| <div class="line"><a name="l00036"></a><span class="lineno"> 36</span>  <span class="comment">// estimated per-host memory requirement for sink;</span></div> |
| <div class="line"><a name="l00037"></a><span class="lineno"> 37</span>  <span class="comment">// set in computeCosts(); invalid: -1</span></div> |
| <div class="line"><a name="l00038"></a><span class="lineno"><a class="line" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1DataSink.html#a8eac91fbb2f8a0add7901fb19dfeba7d"> 38</a></span>  <span class="keyword">protected</span> <span class="keywordtype">long</span> <a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1DataSink.html#a8eac91fbb2f8a0add7901fb19dfeba7d">perHostMemCost_</a> = -1;</div> |
| <div class="line"><a name="l00039"></a><span class="lineno"> 39</span> </div> |
| <div class="line"><a name="l00040"></a><span class="lineno"> 40</span>  <span class="comment">// Fragment that this DataSink belongs to. Set by the PlanFragment enclosing this sink.</span></div> |
| <div class="line"><a name="l00041"></a><span class="lineno"><a class="line" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1DataSink.html#a6c68d99e63f8d9a4a7aa24b6cde9c173"> 41</a></span>  <span class="keyword">protected</span> <a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1PlanFragment.html">PlanFragment</a> <a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1DataSink.html#a6c68d99e63f8d9a4a7aa24b6cde9c173">fragment_</a>;</div> |
| <div class="line"><a name="l00042"></a><span class="lineno"> 42</span> </div> |
| <div class="line"><a name="l00047"></a><span class="lineno"> 47</span>  <span class="keyword">public</span> <span class="keyword">abstract</span> String <a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1DataSink.html#abb7b182e49f9de71a6e08a28297f334a">getExplainString</a>(String prefix, String detailPrefix,</div> |
| <div class="line"><a name="l00048"></a><span class="lineno"> 48</span>  TExplainLevel explainLevel);</div> |
| <div class="line"><a name="l00049"></a><span class="lineno"> 49</span> </div> |
| <div class="line"><a name="l00050"></a><span class="lineno"> 50</span>  <span class="keyword">protected</span> <span class="keyword">abstract</span> TDataSink <a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1DataSink.html#a9463bf6e215d71a68a3e00c54d78510a">toThrift</a>();</div> |
| <div class="line"><a name="l00051"></a><span class="lineno"> 51</span> </div> |
| <div class="line"><a name="l00052"></a><span class="lineno"><a class="line" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1DataSink.html#ab57e596f64874620a1090047b07429b8"> 52</a></span>  <span class="keyword">public</span> <span class="keywordtype">void</span> <a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1DataSink.html#ab57e596f64874620a1090047b07429b8">setFragment</a>(<a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1PlanFragment.html">PlanFragment</a> fragment) { <a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1DataSink.html#a6c68d99e63f8d9a4a7aa24b6cde9c173">fragment_</a> = fragment; }</div> |
| <div class="line"><a name="l00053"></a><span class="lineno"><a class="line" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1DataSink.html#ac8c4144fe8bf97904b090f53414b06ac"> 53</a></span>  <span class="keyword">public</span> <a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1PlanFragment.html">PlanFragment</a> <a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1DataSink.html#ac8c4144fe8bf97904b090f53414b06ac">getFragment</a>() { <span class="keywordflow">return</span> <a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1DataSink.html#a6c68d99e63f8d9a4a7aa24b6cde9c173">fragment_</a>; }</div> |
| <div class="line"><a name="l00054"></a><span class="lineno"><a class="line" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1DataSink.html#a5f63ecd6516b16a5bea94766d11afb6d"> 54</a></span>  <span class="keyword">public</span> <span class="keywordtype">long</span> <a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1DataSink.html#a5f63ecd6516b16a5bea94766d11afb6d">getPerHostMemCost</a>() { <span class="keywordflow">return</span> <a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1DataSink.html#a8eac91fbb2f8a0add7901fb19dfeba7d">perHostMemCost_</a>; }</div> |
| <div class="line"><a name="l00055"></a><span class="lineno"> 55</span> </div> |
| <div class="line"><a name="l00059"></a><span class="lineno"><a class="line" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1DataSink.html#a8763a51e2359faf2669f6b8ee33665e2"> 59</a></span>  <span class="keyword">public</span> <span class="keyword">static</span> <a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1DataSink.html">DataSink</a> <a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1DataSink.html#a8763a51e2359faf2669f6b8ee33665e2">createDataSink</a>(<a class="code" href="classcom_1_1cloudera_1_1impala_1_1catalog_1_1Table.html">Table</a> table, List<Expr> partitionKeyExprs,</div> |
| <div class="line"><a name="l00060"></a><span class="lineno"> 60</span>  <span class="keywordtype">boolean</span> overwrite) {</div> |
| <div class="line"><a name="l00061"></a><span class="lineno"> 61</span>  <span class="keywordflow">if</span> (table instanceof <a class="code" href="classcom_1_1cloudera_1_1impala_1_1catalog_1_1HdfsTable.html">HdfsTable</a>) {</div> |
| <div class="line"><a name="l00062"></a><span class="lineno"> 62</span>  <span class="keywordflow">return</span> <span class="keyword">new</span> <a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1HdfsTableSink.html">HdfsTableSink</a>(table, partitionKeyExprs, overwrite);</div> |
| <div class="line"><a name="l00063"></a><span class="lineno"> 63</span>  } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (table instanceof <a class="code" href="classcom_1_1cloudera_1_1impala_1_1catalog_1_1HBaseTable.html">HBaseTable</a>) {</div> |
| <div class="line"><a name="l00064"></a><span class="lineno"> 64</span>  <span class="comment">// Partition clause doesn't make sense for an HBase table.</span></div> |
| <div class="line"><a name="l00065"></a><span class="lineno"> 65</span>  Preconditions.checkState(partitionKeyExprs.isEmpty());</div> |
| <div class="line"><a name="l00066"></a><span class="lineno"> 66</span>  <span class="comment">// HBase doesn't have a way to perform INSERT OVERWRITE</span></div> |
| <div class="line"><a name="l00067"></a><span class="lineno"> 67</span>  Preconditions.checkState(overwrite == <span class="keyword">false</span>);</div> |
| <div class="line"><a name="l00068"></a><span class="lineno"> 68</span>  <span class="comment">// Create the HBaseTableSink and return it.</span></div> |
| <div class="line"><a name="l00069"></a><span class="lineno"> 69</span>  <span class="keywordflow">return</span> <span class="keyword">new</span> <a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1HBaseTableSink.html">HBaseTableSink</a>(table);</div> |
| <div class="line"><a name="l00070"></a><span class="lineno"> 70</span>  } <span class="keywordflow">else</span> {</div> |
| <div class="line"><a name="l00071"></a><span class="lineno"> 71</span>  <span class="keywordflow">throw</span> <span class="keyword">new</span> UnsupportedOperationException(</div> |
| <div class="line"><a name="l00072"></a><span class="lineno"> 72</span>  <span class="stringliteral">"Cannot create data sink into table of type: "</span> + table.getClass().getName());</div> |
| <div class="line"><a name="l00073"></a><span class="lineno"> 73</span>  }</div> |
| <div class="line"><a name="l00074"></a><span class="lineno"> 74</span>  }</div> |
| <div class="line"><a name="l00075"></a><span class="lineno"> 75</span> </div> |
| <div class="line"><a name="l00079"></a><span class="lineno"><a class="line" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1DataSink.html#a607ee87db0ae858591406f7aa82992b4"> 79</a></span>  <span class="keyword">public</span> <span class="keywordtype">void</span> <a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1DataSink.html#a607ee87db0ae858591406f7aa82992b4">computeCosts</a>() {</div> |
| <div class="line"><a name="l00080"></a><span class="lineno"> 80</span>  <a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1DataSink.html#a8eac91fbb2f8a0add7901fb19dfeba7d">perHostMemCost_</a> = 0;</div> |
| <div class="line"><a name="l00081"></a><span class="lineno"> 81</span>  }</div> |
| <div class="line"><a name="l00082"></a><span class="lineno"> 82</span> }</div> |
| <div class="ttc" id="classcom_1_1cloudera_1_1impala_1_1planner_1_1DataSink_html_abb7b182e49f9de71a6e08a28297f334a"><div class="ttname"><a href="classcom_1_1cloudera_1_1impala_1_1planner_1_1DataSink.html#abb7b182e49f9de71a6e08a28297f334a">com.cloudera.impala.planner.DataSink.getExplainString</a></div><div class="ttdeci">abstract String getExplainString(String prefix, String detailPrefix, TExplainLevel explainLevel)</div></div> |
| <div class="ttc" id="classcom_1_1cloudera_1_1impala_1_1catalog_1_1Table_html"><div class="ttname"><a href="classcom_1_1cloudera_1_1impala_1_1catalog_1_1Table.html">com.cloudera.impala.catalog.Table</a></div><div class="ttdef"><b>Definition:</b> <a href="Table_8java_source.html#l00051">Table.java:51</a></div></div> |
| <div class="ttc" id="classcom_1_1cloudera_1_1impala_1_1planner_1_1PlanFragment_html"><div class="ttname"><a href="classcom_1_1cloudera_1_1impala_1_1planner_1_1PlanFragment.html">com.cloudera.impala.planner.PlanFragment</a></div><div class="ttdef"><b>Definition:</b> <a href="PlanFragment_8java_source.html#l00063">PlanFragment.java:63</a></div></div> |
| <div class="ttc" id="classcom_1_1cloudera_1_1impala_1_1planner_1_1DataSink_html_a9463bf6e215d71a68a3e00c54d78510a"><div class="ttname"><a href="classcom_1_1cloudera_1_1impala_1_1planner_1_1DataSink.html#a9463bf6e215d71a68a3e00c54d78510a">com.cloudera.impala.planner.DataSink.toThrift</a></div><div class="ttdeci">abstract TDataSink toThrift()</div></div> |
| <div class="ttc" id="classcom_1_1cloudera_1_1impala_1_1planner_1_1DataSink_html_a607ee87db0ae858591406f7aa82992b4"><div class="ttname"><a href="classcom_1_1cloudera_1_1impala_1_1planner_1_1DataSink.html#a607ee87db0ae858591406f7aa82992b4">com.cloudera.impala.planner.DataSink.computeCosts</a></div><div class="ttdeci">void computeCosts()</div><div class="ttdef"><b>Definition:</b> <a href="DataSink_8java_source.html#l00079">DataSink.java:79</a></div></div> |
| <div class="ttc" id="classcom_1_1cloudera_1_1impala_1_1planner_1_1DataSink_html_ab57e596f64874620a1090047b07429b8"><div class="ttname"><a href="classcom_1_1cloudera_1_1impala_1_1planner_1_1DataSink.html#ab57e596f64874620a1090047b07429b8">com.cloudera.impala.planner.DataSink.setFragment</a></div><div class="ttdeci">void setFragment(PlanFragment fragment)</div><div class="ttdef"><b>Definition:</b> <a href="DataSink_8java_source.html#l00052">DataSink.java:52</a></div></div> |
| <div class="ttc" id="classcom_1_1cloudera_1_1impala_1_1planner_1_1DataSink_html_a5f63ecd6516b16a5bea94766d11afb6d"><div class="ttname"><a href="classcom_1_1cloudera_1_1impala_1_1planner_1_1DataSink.html#a5f63ecd6516b16a5bea94766d11afb6d">com.cloudera.impala.planner.DataSink.getPerHostMemCost</a></div><div class="ttdeci">long getPerHostMemCost()</div><div class="ttdef"><b>Definition:</b> <a href="DataSink_8java_source.html#l00054">DataSink.java:54</a></div></div> |
| <div class="ttc" id="classcom_1_1cloudera_1_1impala_1_1analysis_1_1Expr_html"><div class="ttname"><a href="classcom_1_1cloudera_1_1impala_1_1analysis_1_1Expr.html">com.cloudera.impala.analysis.Expr</a></div><div class="ttdef"><b>Definition:</b> <a href="Expr_8java_source.html#l00048">Expr.java:48</a></div></div> |
| <div class="ttc" id="classcom_1_1cloudera_1_1impala_1_1planner_1_1DataSink_html_a6c68d99e63f8d9a4a7aa24b6cde9c173"><div class="ttname"><a href="classcom_1_1cloudera_1_1impala_1_1planner_1_1DataSink.html#a6c68d99e63f8d9a4a7aa24b6cde9c173">com.cloudera.impala.planner.DataSink.fragment_</a></div><div class="ttdeci">PlanFragment fragment_</div><div class="ttdef"><b>Definition:</b> <a href="DataSink_8java_source.html#l00041">DataSink.java:41</a></div></div> |
| <div class="ttc" id="classcom_1_1cloudera_1_1impala_1_1planner_1_1DataSink_html_ac8c4144fe8bf97904b090f53414b06ac"><div class="ttname"><a href="classcom_1_1cloudera_1_1impala_1_1planner_1_1DataSink.html#ac8c4144fe8bf97904b090f53414b06ac">com.cloudera.impala.planner.DataSink.getFragment</a></div><div class="ttdeci">PlanFragment getFragment()</div><div class="ttdef"><b>Definition:</b> <a href="DataSink_8java_source.html#l00053">DataSink.java:53</a></div></div> |
| <div class="ttc" id="classcom_1_1cloudera_1_1impala_1_1catalog_1_1HdfsTable_html"><div class="ttname"><a href="classcom_1_1cloudera_1_1impala_1_1catalog_1_1HdfsTable.html">com.cloudera.impala.catalog.HdfsTable</a></div><div class="ttdef"><b>Definition:</b> <a href="HdfsTable_8java_source.html#l00104">HdfsTable.java:104</a></div></div> |
| <div class="ttc" id="classcom_1_1cloudera_1_1impala_1_1planner_1_1DataSink_html_a8763a51e2359faf2669f6b8ee33665e2"><div class="ttname"><a href="classcom_1_1cloudera_1_1impala_1_1planner_1_1DataSink.html#a8763a51e2359faf2669f6b8ee33665e2">com.cloudera.impala.planner.DataSink.createDataSink</a></div><div class="ttdeci">static DataSink createDataSink(Table table, List< Expr > partitionKeyExprs, boolean overwrite)</div><div class="ttdef"><b>Definition:</b> <a href="DataSink_8java_source.html#l00059">DataSink.java:59</a></div></div> |
| <div class="ttc" id="classcom_1_1cloudera_1_1impala_1_1planner_1_1DataSink_html"><div class="ttname"><a href="classcom_1_1cloudera_1_1impala_1_1planner_1_1DataSink.html">com.cloudera.impala.planner.DataSink</a></div><div class="ttdef"><b>Definition:</b> <a href="DataSink_8java_source.html#l00034">DataSink.java:34</a></div></div> |
| <div class="ttc" id="classcom_1_1cloudera_1_1impala_1_1planner_1_1HdfsTableSink_html"><div class="ttname"><a href="classcom_1_1cloudera_1_1impala_1_1planner_1_1HdfsTableSink.html">com.cloudera.impala.planner.HdfsTableSink</a></div><div class="ttdef"><b>Definition:</b> <a href="HdfsTableSink_8java_source.html#l00036">HdfsTableSink.java:36</a></div></div> |
| <div class="ttc" id="classcom_1_1cloudera_1_1impala_1_1catalog_1_1HBaseTable_html"><div class="ttname"><a href="classcom_1_1cloudera_1_1impala_1_1catalog_1_1HBaseTable.html">com.cloudera.impala.catalog.HBaseTable</a></div><div class="ttdef"><b>Definition:</b> <a href="HBaseTable_8java_source.html#l00076">HBaseTable.java:76</a></div></div> |
| <div class="ttc" id="classcom_1_1cloudera_1_1impala_1_1planner_1_1HBaseTableSink_html"><div class="ttname"><a href="classcom_1_1cloudera_1_1impala_1_1planner_1_1HBaseTableSink.html">com.cloudera.impala.planner.HBaseTableSink</a></div><div class="ttdef"><b>Definition:</b> <a href="HBaseTableSink_8java_source.html#l00030">HBaseTableSink.java:30</a></div></div> |
| <div class="ttc" id="classcom_1_1cloudera_1_1impala_1_1planner_1_1DataSink_html_a8eac91fbb2f8a0add7901fb19dfeba7d"><div class="ttname"><a href="classcom_1_1cloudera_1_1impala_1_1planner_1_1DataSink.html#a8eac91fbb2f8a0add7901fb19dfeba7d">com.cloudera.impala.planner.DataSink.perHostMemCost_</a></div><div class="ttdeci">long perHostMemCost_</div><div class="ttdef"><b>Definition:</b> <a href="DataSink_8java_source.html#l00038">DataSink.java:38</a></div></div> |
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