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<div class="title">CatalogDeltaLog.java</div> </div>
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<a href="CatalogDeltaLog_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>&#160;<span class="comment">// Copyright 2012 Cloudera Inc.</span></div>
<div class="line"><a name="l00002"></a><span class="lineno"> 2</span>&#160;<span class="comment">//</span></div>
<div class="line"><a name="l00003"></a><span class="lineno"> 3</span>&#160;<span class="comment">// Licensed under the Apache License, Version 2.0 (the &quot;License&quot;);</span></div>
<div class="line"><a name="l00004"></a><span class="lineno"> 4</span>&#160;<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>&#160;<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>&#160;<span class="comment">//</span></div>
<div class="line"><a name="l00007"></a><span class="lineno"> 7</span>&#160;<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>&#160;<span class="comment">//</span></div>
<div class="line"><a name="l00009"></a><span class="lineno"> 9</span>&#160;<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>&#160;<span class="comment">// distributed under the License is distributed on an &quot;AS IS&quot; BASIS,</span></div>
<div class="line"><a name="l00011"></a><span class="lineno"> 11</span>&#160;<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>&#160;<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>&#160;<span class="comment">// limitations under the License.</span></div>
<div class="line"><a name="l00014"></a><span class="lineno"> 14</span>&#160;</div>
<div class="line"><a name="l00015"></a><span class="lineno"> 15</span>&#160;<span class="keyword">package </span>com.cloudera.impala.catalog;</div>
<div class="line"><a name="l00016"></a><span class="lineno"> 16</span>&#160;</div>
<div class="line"><a name="l00017"></a><span class="lineno"> 17</span>&#160;<span class="keyword">import</span> java.util.Map;</div>
<div class="line"><a name="l00018"></a><span class="lineno"> 18</span>&#160;<span class="keyword">import</span> java.util.SortedMap;</div>
<div class="line"><a name="l00019"></a><span class="lineno"> 19</span>&#160;<span class="keyword">import</span> java.util.TreeMap;</div>
<div class="line"><a name="l00020"></a><span class="lineno"> 20</span>&#160;</div>
<div class="line"><a name="l00021"></a><span class="lineno"> 21</span>&#160;<span class="keyword">import</span> com.cloudera.impala.thrift.TCatalogObject;</div>
<div class="line"><a name="l00022"></a><span class="lineno"> 22</span>&#160;<span class="keyword">import</span> com.cloudera.impala.thrift.TTable;</div>
<div class="line"><a name="l00023"></a><span class="lineno"> 23</span>&#160;<span class="keyword">import</span> com.google.common.base.Preconditions;</div>
<div class="line"><a name="l00024"></a><span class="lineno"> 24</span>&#160;</div>
<div class="line"><a name="l00043"></a><span class="lineno"><a class="line" href="classcom_1_1cloudera_1_1impala_1_1catalog_1_1CatalogDeltaLog.html"> 43</a></span>&#160;<span class="keyword">public</span> <span class="keyword">class </span><a class="code" href="classcom_1_1cloudera_1_1impala_1_1catalog_1_1CatalogDeltaLog.html">CatalogDeltaLog</a> {</div>
<div class="line"><a name="l00044"></a><span class="lineno"> 44</span>&#160; <span class="comment">// Map of the catalog version an object was removed from the catalog</span></div>
<div class="line"><a name="l00045"></a><span class="lineno"> 45</span>&#160; <span class="comment">// to the catalog object, ordered by catalog version.</span></div>
<div class="line"><a name="l00046"></a><span class="lineno"><a class="line" href="classcom_1_1cloudera_1_1impala_1_1catalog_1_1CatalogDeltaLog.html#abe33a9eebec471e8cb2b9ea64e0e6e53"> 46</a></span>&#160; <span class="keyword">private</span> SortedMap&lt;Long, TCatalogObject&gt; <a class="code" href="classcom_1_1cloudera_1_1impala_1_1catalog_1_1CatalogDeltaLog.html#abe33a9eebec471e8cb2b9ea64e0e6e53">removedCatalogObjects_</a> =</div>
<div class="line"><a name="l00047"></a><span class="lineno"> 47</span>&#160; <span class="keyword">new</span> TreeMap&lt;Long, TCatalogObject&gt;();</div>
<div class="line"><a name="l00048"></a><span class="lineno"> 48</span>&#160;</div>
<div class="line"><a name="l00052"></a><span class="lineno"><a class="line" href="classcom_1_1cloudera_1_1impala_1_1catalog_1_1CatalogDeltaLog.html#aa16f04b5411faafda7bf4e25a9c98cee"> 52</a></span>&#160; <span class="keyword">public</span> <span class="keyword">synchronized</span> <span class="keywordtype">void</span> <a class="code" href="classcom_1_1cloudera_1_1impala_1_1catalog_1_1CatalogDeltaLog.html#aa16f04b5411faafda7bf4e25a9c98cee">addRemovedObject</a>(TCatalogObject catalogObject) {</div>
<div class="line"><a name="l00053"></a><span class="lineno"> 53</span>&#160; Preconditions.checkNotNull(catalogObject);</div>
<div class="line"><a name="l00054"></a><span class="lineno"> 54</span>&#160; removedCatalogObjects_.put(catalogObject.getCatalog_version(), catalogObject);</div>
<div class="line"><a name="l00055"></a><span class="lineno"> 55</span>&#160; }</div>
<div class="line"><a name="l00056"></a><span class="lineno"> 56</span>&#160;</div>
<div class="line"><a name="l00063"></a><span class="lineno"><a class="line" href="classcom_1_1cloudera_1_1impala_1_1catalog_1_1CatalogDeltaLog.html#a20e1a57950343abb66d11c7bcc7b5b2d"> 63</a></span>&#160; <span class="keyword">public</span> <span class="keyword">synchronized</span> <span class="keywordtype">void</span> <a class="code" href="classcom_1_1cloudera_1_1impala_1_1catalog_1_1CatalogDeltaLog.html#a20e1a57950343abb66d11c7bcc7b5b2d">garbageCollect</a>(<span class="keywordtype">long</span> currentCatalogVersion) {</div>
<div class="line"><a name="l00064"></a><span class="lineno"> 64</span>&#160; <span class="comment">// Nothing will be garbage collected so avoid creating a new object.</span></div>
<div class="line"><a name="l00065"></a><span class="lineno"> 65</span>&#160; <span class="keywordflow">if</span> (!<a class="code" href="classcom_1_1cloudera_1_1impala_1_1catalog_1_1CatalogDeltaLog.html#abe33a9eebec471e8cb2b9ea64e0e6e53">removedCatalogObjects_</a>.isEmpty() &amp;&amp;</div>
<div class="line"><a name="l00066"></a><span class="lineno"> 66</span>&#160; removedCatalogObjects_.firstKey() &lt; currentCatalogVersion) {</div>
<div class="line"><a name="l00067"></a><span class="lineno"> 67</span>&#160; <a class="code" href="classcom_1_1cloudera_1_1impala_1_1catalog_1_1CatalogDeltaLog.html#abe33a9eebec471e8cb2b9ea64e0e6e53">removedCatalogObjects_</a> = <span class="keyword">new</span> TreeMap&lt;Long, TCatalogObject&gt;(</div>
<div class="line"><a name="l00068"></a><span class="lineno"> 68</span>&#160; removedCatalogObjects_.tailMap(currentCatalogVersion));</div>
<div class="line"><a name="l00069"></a><span class="lineno"> 69</span>&#160; }</div>
<div class="line"><a name="l00070"></a><span class="lineno"> 70</span>&#160; }</div>
<div class="line"><a name="l00071"></a><span class="lineno"> 71</span>&#160;</div>
<div class="line"><a name="l00077"></a><span class="lineno"><a class="line" href="classcom_1_1cloudera_1_1impala_1_1catalog_1_1CatalogDeltaLog.html#aaf28d53606c80ea193f8bb583636387b"> 77</a></span>&#160; <span class="keyword">public</span> <span class="keyword">synchronized</span> <span class="keywordtype">boolean</span> <a class="code" href="classcom_1_1cloudera_1_1impala_1_1catalog_1_1CatalogDeltaLog.html#aaf28d53606c80ea193f8bb583636387b">wasObjectRemovedAfter</a>(TCatalogObject catalogObject) {</div>
<div class="line"><a name="l00078"></a><span class="lineno"> 78</span>&#160; Preconditions.checkNotNull(catalogObject);</div>
<div class="line"><a name="l00079"></a><span class="lineno"> 79</span>&#160; <span class="keywordflow">if</span> (<a class="code" href="classcom_1_1cloudera_1_1impala_1_1catalog_1_1CatalogDeltaLog.html#abe33a9eebec471e8cb2b9ea64e0e6e53">removedCatalogObjects_</a>.isEmpty()) <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
<div class="line"><a name="l00080"></a><span class="lineno"> 80</span>&#160;</div>
<div class="line"><a name="l00081"></a><span class="lineno"> 81</span>&#160; <span class="comment">// Get all the items that were removed after the catalog version of this object.</span></div>
<div class="line"><a name="l00082"></a><span class="lineno"> 82</span>&#160; SortedMap&lt;Long, TCatalogObject&gt; candidateObjects =</div>
<div class="line"><a name="l00083"></a><span class="lineno"> 83</span>&#160; removedCatalogObjects_.tailMap(catalogObject.getCatalog_version());</div>
<div class="line"><a name="l00084"></a><span class="lineno"> 84</span>&#160; <span class="keywordflow">for</span> (Map.Entry&lt;Long, TCatalogObject&gt; entry: candidateObjects.entrySet()) {</div>
<div class="line"><a name="l00085"></a><span class="lineno"> 85</span>&#160; <span class="keywordflow">if</span> (<a class="code" href="classcom_1_1cloudera_1_1impala_1_1catalog_1_1CatalogDeltaLog.html#a11d7ecf7bfa5a54b50edf934562fb95d">objectNamesMatch</a>(catalogObject, entry.getValue())) <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
<div class="line"><a name="l00086"></a><span class="lineno"> 86</span>&#160; }</div>
<div class="line"><a name="l00087"></a><span class="lineno"> 87</span>&#160; <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
<div class="line"><a name="l00088"></a><span class="lineno"> 88</span>&#160; }</div>
<div class="line"><a name="l00089"></a><span class="lineno"> 89</span>&#160;</div>
<div class="line"><a name="l00094"></a><span class="lineno"><a class="line" href="classcom_1_1cloudera_1_1impala_1_1catalog_1_1CatalogDeltaLog.html#a11d7ecf7bfa5a54b50edf934562fb95d"> 94</a></span>&#160; <span class="keyword">private</span> <span class="keywordtype">boolean</span> <a class="code" href="classcom_1_1cloudera_1_1impala_1_1catalog_1_1CatalogDeltaLog.html#a11d7ecf7bfa5a54b50edf934562fb95d">objectNamesMatch</a>(TCatalogObject first, TCatalogObject second) {</div>
<div class="line"><a name="l00095"></a><span class="lineno"> 95</span>&#160; <span class="keywordflow">if</span> (first.getType() != second.getType()) <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
<div class="line"><a name="l00096"></a><span class="lineno"> 96</span>&#160; <span class="keywordflow">switch</span> (first.getType()) {</div>
<div class="line"><a name="l00097"></a><span class="lineno"> 97</span>&#160; <span class="keywordflow">case</span> DATABASE:</div>
<div class="line"><a name="l00098"></a><span class="lineno"> 98</span>&#160; <span class="keywordflow">return</span> first.getDb().getDb_name().equalsIgnoreCase(second.getDb().getDb_name());</div>
<div class="line"><a name="l00099"></a><span class="lineno"> 99</span>&#160; <span class="keywordflow">case</span> TABLE:</div>
<div class="line"><a name="l00100"></a><span class="lineno"> 100</span>&#160; <span class="keywordflow">case</span> VIEW:</div>
<div class="line"><a name="l00101"></a><span class="lineno"> 101</span>&#160; TTable firstTbl = first.getTable();</div>
<div class="line"><a name="l00102"></a><span class="lineno"> 102</span>&#160; <span class="keywordflow">return</span> firstTbl.getDb_name().equalsIgnoreCase(second.getTable().getDb_name()) &amp;&amp;</div>
<div class="line"><a name="l00103"></a><span class="lineno"> 103</span>&#160; firstTbl.getTbl_name().equalsIgnoreCase(second.getTable().getTbl_name());</div>
<div class="line"><a name="l00104"></a><span class="lineno"> 104</span>&#160; <span class="keywordflow">case</span> FUNCTION:</div>
<div class="line"><a name="l00105"></a><span class="lineno"> 105</span>&#160; <span class="keywordflow">return</span> first.getFn().getSignature().equals(second.getFn().getSignature()) &amp;&amp;</div>
<div class="line"><a name="l00106"></a><span class="lineno"> 106</span>&#160; first.getFn().getName().equals(second.getFn().getName());</div>
<div class="line"><a name="l00107"></a><span class="lineno"> 107</span>&#160; <span class="keywordflow">case</span> ROLE:</div>
<div class="line"><a name="l00108"></a><span class="lineno"> 108</span>&#160; <span class="keywordflow">return</span> first.getRole().getRole_name().equalsIgnoreCase(</div>
<div class="line"><a name="l00109"></a><span class="lineno"> 109</span>&#160; second.getRole().getRole_name());</div>
<div class="line"><a name="l00110"></a><span class="lineno"> 110</span>&#160; <span class="keywordflow">case</span> PRIVILEGE:</div>
<div class="line"><a name="l00111"></a><span class="lineno"> 111</span>&#160; <span class="keywordflow">return</span> first.getPrivilege().getPrivilege_name().equalsIgnoreCase(</div>
<div class="line"><a name="l00112"></a><span class="lineno"> 112</span>&#160; second.getPrivilege().getPrivilege_name()) &amp;&amp;</div>
<div class="line"><a name="l00113"></a><span class="lineno"> 113</span>&#160; first.getPrivilege().getRole_id() == second.getPrivilege().getRole_id();</div>
<div class="line"><a name="l00114"></a><span class="lineno"> 114</span>&#160; <span class="keywordflow">default</span>: <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
<div class="line"><a name="l00115"></a><span class="lineno"> 115</span>&#160; }</div>
<div class="line"><a name="l00116"></a><span class="lineno"> 116</span>&#160; }</div>
<div class="line"><a name="l00117"></a><span class="lineno"> 117</span>&#160;}</div>
<div class="ttc" id="classcom_1_1cloudera_1_1impala_1_1catalog_1_1CatalogDeltaLog_html_abe33a9eebec471e8cb2b9ea64e0e6e53"><div class="ttname"><a href="classcom_1_1cloudera_1_1impala_1_1catalog_1_1CatalogDeltaLog.html#abe33a9eebec471e8cb2b9ea64e0e6e53">com.cloudera.impala.catalog.CatalogDeltaLog.removedCatalogObjects_</a></div><div class="ttdeci">SortedMap&lt; Long, TCatalogObject &gt; removedCatalogObjects_</div><div class="ttdef"><b>Definition:</b> <a href="CatalogDeltaLog_8java_source.html#l00046">CatalogDeltaLog.java:46</a></div></div>
<div class="ttc" id="classcom_1_1cloudera_1_1impala_1_1catalog_1_1CatalogDeltaLog_html_aaf28d53606c80ea193f8bb583636387b"><div class="ttname"><a href="classcom_1_1cloudera_1_1impala_1_1catalog_1_1CatalogDeltaLog.html#aaf28d53606c80ea193f8bb583636387b">com.cloudera.impala.catalog.CatalogDeltaLog.wasObjectRemovedAfter</a></div><div class="ttdeci">synchronized boolean wasObjectRemovedAfter(TCatalogObject catalogObject)</div><div class="ttdef"><b>Definition:</b> <a href="CatalogDeltaLog_8java_source.html#l00077">CatalogDeltaLog.java:77</a></div></div>
<div class="ttc" id="classcom_1_1cloudera_1_1impala_1_1catalog_1_1CatalogDeltaLog_html_aa16f04b5411faafda7bf4e25a9c98cee"><div class="ttname"><a href="classcom_1_1cloudera_1_1impala_1_1catalog_1_1CatalogDeltaLog.html#aa16f04b5411faafda7bf4e25a9c98cee">com.cloudera.impala.catalog.CatalogDeltaLog.addRemovedObject</a></div><div class="ttdeci">synchronized void addRemovedObject(TCatalogObject catalogObject)</div><div class="ttdef"><b>Definition:</b> <a href="CatalogDeltaLog_8java_source.html#l00052">CatalogDeltaLog.java:52</a></div></div>
<div class="ttc" id="classcom_1_1cloudera_1_1impala_1_1catalog_1_1CatalogDeltaLog_html_a11d7ecf7bfa5a54b50edf934562fb95d"><div class="ttname"><a href="classcom_1_1cloudera_1_1impala_1_1catalog_1_1CatalogDeltaLog.html#a11d7ecf7bfa5a54b50edf934562fb95d">com.cloudera.impala.catalog.CatalogDeltaLog.objectNamesMatch</a></div><div class="ttdeci">boolean objectNamesMatch(TCatalogObject first, TCatalogObject second)</div><div class="ttdef"><b>Definition:</b> <a href="CatalogDeltaLog_8java_source.html#l00094">CatalogDeltaLog.java:94</a></div></div>
<div class="ttc" id="classcom_1_1cloudera_1_1impala_1_1catalog_1_1CatalogDeltaLog_html_a20e1a57950343abb66d11c7bcc7b5b2d"><div class="ttname"><a href="classcom_1_1cloudera_1_1impala_1_1catalog_1_1CatalogDeltaLog.html#a20e1a57950343abb66d11c7bcc7b5b2d">com.cloudera.impala.catalog.CatalogDeltaLog.garbageCollect</a></div><div class="ttdeci">synchronized void garbageCollect(long currentCatalogVersion)</div><div class="ttdef"><b>Definition:</b> <a href="CatalogDeltaLog_8java_source.html#l00063">CatalogDeltaLog.java:63</a></div></div>
<div class="ttc" id="classcom_1_1cloudera_1_1impala_1_1catalog_1_1CatalogDeltaLog_html"><div class="ttname"><a href="classcom_1_1cloudera_1_1impala_1_1catalog_1_1CatalogDeltaLog.html">com.cloudera.impala.catalog.CatalogDeltaLog</a></div><div class="ttdef"><b>Definition:</b> <a href="CatalogDeltaLog_8java_source.html#l00043">CatalogDeltaLog.java:43</a></div></div>
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