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Posted to commits@hbase.apache.org by st...@apache.org on 2013/04/06 08:06:09 UTC
svn commit: r1465198 [40/41] - in /hbase/hbase.apache.org/trunk: ./ css/
hbase-assembly/ images/ xref-test/ xref-test/org/apache/hadoop/hbase/
xref-test/org/apache/hadoop/hbase/client/
xref-test/org/apache/hadoop/hbase/client/replication/ xref-test/org...
Modified: hbase/hbase.apache.org/trunk/xref/org/apache/hadoop/hbase/util/FSUtils.html
URL: http://svn.apache.org/viewvc/hbase/hbase.apache.org/trunk/xref/org/apache/hadoop/hbase/util/FSUtils.html?rev=1465198&r1=1465197&r2=1465198&view=diff
==============================================================================
--- hbase/hbase.apache.org/trunk/xref/org/apache/hadoop/hbase/util/FSUtils.html (original)
+++ hbase/hbase.apache.org/trunk/xref/org/apache/hadoop/hbase/util/FSUtils.html Sat Apr 6 06:06:07 2013
@@ -59,1447 +59,1480 @@
<a class="jxr_linenumber" name="49" href="#49">49</a> <strong class="jxr_keyword">import</strong> org.apache.hadoop.fs.permission.FsAction;
<a class="jxr_linenumber" name="50" href="#50">50</a> <strong class="jxr_keyword">import</strong> org.apache.hadoop.fs.permission.FsPermission;
<a class="jxr_linenumber" name="51" href="#51">51</a> <strong class="jxr_keyword">import</strong> org.apache.hadoop.hbase.ClusterId;
-<a class="jxr_linenumber" name="52" href="#52">52</a> <strong class="jxr_keyword">import</strong> org.apache.hadoop.hbase.exceptions.DeserializationException;
-<a class="jxr_linenumber" name="53" href="#53">53</a> <strong class="jxr_keyword">import</strong> org.apache.hadoop.hbase.HColumnDescriptor;
-<a class="jxr_linenumber" name="54" href="#54">54</a> <strong class="jxr_keyword">import</strong> org.apache.hadoop.hbase.HConstants;
-<a class="jxr_linenumber" name="55" href="#55">55</a> <strong class="jxr_keyword">import</strong> org.apache.hadoop.hbase.HDFSBlocksDistribution;
-<a class="jxr_linenumber" name="56" href="#56">56</a> <strong class="jxr_keyword">import</strong> org.apache.hadoop.hbase.HRegionInfo;
-<a class="jxr_linenumber" name="57" href="#57">57</a> <strong class="jxr_keyword">import</strong> org.apache.hadoop.hbase.RemoteExceptionHandler;
+<a class="jxr_linenumber" name="52" href="#52">52</a> <strong class="jxr_keyword">import</strong> org.apache.hadoop.hbase.HColumnDescriptor;
+<a class="jxr_linenumber" name="53" href="#53">53</a> <strong class="jxr_keyword">import</strong> org.apache.hadoop.hbase.HConstants;
+<a class="jxr_linenumber" name="54" href="#54">54</a> <strong class="jxr_keyword">import</strong> org.apache.hadoop.hbase.HDFSBlocksDistribution;
+<a class="jxr_linenumber" name="55" href="#55">55</a> <strong class="jxr_keyword">import</strong> org.apache.hadoop.hbase.HRegionInfo;
+<a class="jxr_linenumber" name="56" href="#56">56</a> <strong class="jxr_keyword">import</strong> org.apache.hadoop.hbase.RemoteExceptionHandler;
+<a class="jxr_linenumber" name="57" href="#57">57</a> <strong class="jxr_keyword">import</strong> org.apache.hadoop.hbase.exceptions.DeserializationException;
<a class="jxr_linenumber" name="58" href="#58">58</a> <strong class="jxr_keyword">import</strong> org.apache.hadoop.hbase.exceptions.FileSystemVersionException;
<a class="jxr_linenumber" name="59" href="#59">59</a> <strong class="jxr_keyword">import</strong> org.apache.hadoop.hbase.master.HMaster;
<a class="jxr_linenumber" name="60" href="#60">60</a> <strong class="jxr_keyword">import</strong> org.apache.hadoop.hbase.protobuf.ProtobufUtil;
<a class="jxr_linenumber" name="61" href="#61">61</a> <strong class="jxr_keyword">import</strong> org.apache.hadoop.hbase.protobuf.generated.FSProtos;
<a class="jxr_linenumber" name="62" href="#62">62</a> <strong class="jxr_keyword">import</strong> org.apache.hadoop.hbase.regionserver.HRegion;
<a class="jxr_linenumber" name="63" href="#63">63</a> <strong class="jxr_keyword">import</strong> org.apache.hadoop.hdfs.DistributedFileSystem;
-<a class="jxr_linenumber" name="64" href="#64">64</a> <strong class="jxr_keyword">import</strong> org.apache.hadoop.io.IOUtils;
-<a class="jxr_linenumber" name="65" href="#65">65</a> <strong class="jxr_keyword">import</strong> org.apache.hadoop.io.SequenceFile;
-<a class="jxr_linenumber" name="66" href="#66">66</a> <strong class="jxr_keyword">import</strong> org.apache.hadoop.security.AccessControlException;
-<a class="jxr_linenumber" name="67" href="#67">67</a> <strong class="jxr_keyword">import</strong> org.apache.hadoop.security.UserGroupInformation;
-<a class="jxr_linenumber" name="68" href="#68">68</a> <strong class="jxr_keyword">import</strong> org.apache.hadoop.util.ReflectionUtils;
-<a class="jxr_linenumber" name="69" href="#69">69</a> <strong class="jxr_keyword">import</strong> org.apache.hadoop.util.StringUtils;
-<a class="jxr_linenumber" name="70" href="#70">70</a>
-<a class="jxr_linenumber" name="71" href="#71">71</a> <strong class="jxr_keyword">import</strong> com.google.common.primitives.Ints;
-<a class="jxr_linenumber" name="72" href="#72">72</a> <strong class="jxr_keyword">import</strong> com.google.protobuf.InvalidProtocolBufferException;
-<a class="jxr_linenumber" name="73" href="#73">73</a>
-<a class="jxr_linenumber" name="74" href="#74">74</a> <em class="jxr_javadoccomment">/**</em>
-<a class="jxr_linenumber" name="75" href="#75">75</a> <em class="jxr_javadoccomment"> * Utility methods for interacting with the underlying file system.</em>
-<a class="jxr_linenumber" name="76" href="#76">76</a> <em class="jxr_javadoccomment"> */</em>
-<a class="jxr_linenumber" name="77" href="#77">77</a> @InterfaceAudience.Public
-<a class="jxr_linenumber" name="78" href="#78">78</a> @InterfaceStability.Evolving
-<a class="jxr_linenumber" name="79" href="#79">79</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">abstract</strong> <strong class="jxr_keyword">class</strong> <a href="../../../../../org/apache/hadoop/hbase/util/FSUtils.html">FSUtils</a> {
-<a class="jxr_linenumber" name="80" href="#80">80</a> <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">static</strong> <strong class="jxr_keyword">final</strong> Log LOG = LogFactory.getLog(FSUtils.<strong class="jxr_keyword">class</strong>);
-<a class="jxr_linenumber" name="81" href="#81">81</a>
-<a class="jxr_linenumber" name="82" href="#82">82</a> <em class="jxr_javadoccomment">/**</em><em class="jxr_javadoccomment"> Full access permissions (starting point for a umask) */</em>
-<a class="jxr_linenumber" name="83" href="#83">83</a> <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">static</strong> <strong class="jxr_keyword">final</strong> String FULL_RWX_PERMISSIONS = <span class="jxr_string">"777"</span>;
-<a class="jxr_linenumber" name="84" href="#84">84</a>
-<a class="jxr_linenumber" name="85" href="#85">85</a> <strong class="jxr_keyword">protected</strong> <a href="../../../../../org/apache/hadoop/hbase/util/FSUtils.html">FSUtils</a>() {
-<a class="jxr_linenumber" name="86" href="#86">86</a> <strong class="jxr_keyword">super</strong>();
-<a class="jxr_linenumber" name="87" href="#87">87</a> }
-<a class="jxr_linenumber" name="88" href="#88">88</a>
-<a class="jxr_linenumber" name="89" href="#89">89</a> <em class="jxr_javadoccomment">/**</em>
-<a class="jxr_linenumber" name="90" href="#90">90</a> <em class="jxr_javadoccomment"> * Compare of path component. Does not consider schema; i.e. if schemas different but <code>path</em>
-<a class="jxr_linenumber" name="91" href="#91">91</a> <em class="jxr_javadoccomment"> * <code> starts with <code>rootPath<code>, then the function returns true</em>
-<a class="jxr_linenumber" name="92" href="#92">92</a> <em class="jxr_javadoccomment"> * @param rootPath</em>
-<a class="jxr_linenumber" name="93" href="#93">93</a> <em class="jxr_javadoccomment"> * @param path </em>
-<a class="jxr_linenumber" name="94" href="#94">94</a> <em class="jxr_javadoccomment"> * @return True if <code>path</code> starts with <code>rootPath</code></em>
-<a class="jxr_linenumber" name="95" href="#95">95</a> <em class="jxr_javadoccomment"> */</em>
-<a class="jxr_linenumber" name="96" href="#96">96</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">static</strong> <strong class="jxr_keyword">boolean</strong> isStartingWithPath(<strong class="jxr_keyword">final</strong> Path rootPath, <strong class="jxr_keyword">final</strong> String path) {
-<a class="jxr_linenumber" name="97" href="#97">97</a> String uriRootPath = rootPath.toUri().getPath();
-<a class="jxr_linenumber" name="98" href="#98">98</a> String tailUriPath = (<strong class="jxr_keyword">new</strong> Path(path)).toUri().getPath();
-<a class="jxr_linenumber" name="99" href="#99">99</a> <strong class="jxr_keyword">return</strong> tailUriPath.startsWith(uriRootPath);
-<a class="jxr_linenumber" name="100" href="#100">100</a> }
-<a class="jxr_linenumber" name="101" href="#101">101</a>
-<a class="jxr_linenumber" name="102" href="#102">102</a> <em class="jxr_javadoccomment">/**</em>
-<a class="jxr_linenumber" name="103" href="#103">103</a> <em class="jxr_javadoccomment"> * Compare path component of the Path URI; e.g. if hdfs://a/b/c and /a/b/c, it will compare the</em>
-<a class="jxr_linenumber" name="104" href="#104">104</a> <em class="jxr_javadoccomment"> * '/a/b/c' part. Does not consider schema; i.e. if schemas different but path or subpath matches,</em>
-<a class="jxr_linenumber" name="105" href="#105">105</a> <em class="jxr_javadoccomment"> * the two will equate.</em>
-<a class="jxr_linenumber" name="106" href="#106">106</a> <em class="jxr_javadoccomment"> * @param pathToSearch Path we will be trying to match.</em>
-<a class="jxr_linenumber" name="107" href="#107">107</a> <em class="jxr_javadoccomment"> * @param pathTail</em>
-<a class="jxr_linenumber" name="108" href="#108">108</a> <em class="jxr_javadoccomment"> * @return True if <code>pathTail</code> is tail on the path of <code>pathToSearch</code></em>
-<a class="jxr_linenumber" name="109" href="#109">109</a> <em class="jxr_javadoccomment"> */</em>
-<a class="jxr_linenumber" name="110" href="#110">110</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">static</strong> <strong class="jxr_keyword">boolean</strong> isMatchingTail(<strong class="jxr_keyword">final</strong> Path pathToSearch, String pathTail) {
-<a class="jxr_linenumber" name="111" href="#111">111</a> <strong class="jxr_keyword">return</strong> isMatchingTail(pathToSearch, <strong class="jxr_keyword">new</strong> Path(pathTail));
-<a class="jxr_linenumber" name="112" href="#112">112</a> }
-<a class="jxr_linenumber" name="113" href="#113">113</a>
-<a class="jxr_linenumber" name="114" href="#114">114</a> <em class="jxr_javadoccomment">/**</em>
-<a class="jxr_linenumber" name="115" href="#115">115</a> <em class="jxr_javadoccomment"> * Compare path component of the Path URI; e.g. if hdfs://a/b/c and /a/b/c, it will compare the</em>
-<a class="jxr_linenumber" name="116" href="#116">116</a> <em class="jxr_javadoccomment"> * '/a/b/c' part. If you passed in 'hdfs://a/b/c and b/c, it would return true. Does not consider</em>
-<a class="jxr_linenumber" name="117" href="#117">117</a> <em class="jxr_javadoccomment"> * schema; i.e. if schemas different but path or subpath matches, the two will equate.</em>
-<a class="jxr_linenumber" name="118" href="#118">118</a> <em class="jxr_javadoccomment"> * @param pathToSearch Path we will be trying to match.</em>
-<a class="jxr_linenumber" name="119" href="#119">119</a> <em class="jxr_javadoccomment"> * @param pathTail</em>
-<a class="jxr_linenumber" name="120" href="#120">120</a> <em class="jxr_javadoccomment"> * @return True if <code>pathTail</code> is tail on the path of <code>pathToSearch</code></em>
-<a class="jxr_linenumber" name="121" href="#121">121</a> <em class="jxr_javadoccomment"> */</em>
-<a class="jxr_linenumber" name="122" href="#122">122</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">static</strong> <strong class="jxr_keyword">boolean</strong> isMatchingTail(<strong class="jxr_keyword">final</strong> Path pathToSearch, <strong class="jxr_keyword">final</strong> Path pathTail) {
-<a class="jxr_linenumber" name="123" href="#123">123</a> <strong class="jxr_keyword">if</strong> (pathToSearch.depth() != pathTail.depth()) <strong class="jxr_keyword">return</strong> false;
-<a class="jxr_linenumber" name="124" href="#124">124</a> Path tailPath = pathTail;
-<a class="jxr_linenumber" name="125" href="#125">125</a> String tailName;
-<a class="jxr_linenumber" name="126" href="#126">126</a> Path toSearch = pathToSearch;
-<a class="jxr_linenumber" name="127" href="#127">127</a> String toSearchName;
-<a class="jxr_linenumber" name="128" href="#128">128</a> <strong class="jxr_keyword">boolean</strong> result = false;
-<a class="jxr_linenumber" name="129" href="#129">129</a> <strong class="jxr_keyword">do</strong> {
-<a class="jxr_linenumber" name="130" href="#130">130</a> tailName = tailPath.getName();
-<a class="jxr_linenumber" name="131" href="#131">131</a> <strong class="jxr_keyword">if</strong> (tailName == <strong class="jxr_keyword">null</strong> || tailName.length() <= 0) {
-<a class="jxr_linenumber" name="132" href="#132">132</a> result = <strong class="jxr_keyword">true</strong>;
-<a class="jxr_linenumber" name="133" href="#133">133</a> <strong class="jxr_keyword">break</strong>;
-<a class="jxr_linenumber" name="134" href="#134">134</a> }
-<a class="jxr_linenumber" name="135" href="#135">135</a> toSearchName = toSearch.getName();
-<a class="jxr_linenumber" name="136" href="#136">136</a> <strong class="jxr_keyword">if</strong> (toSearchName == <strong class="jxr_keyword">null</strong> || toSearchName.length() <= 0) <strong class="jxr_keyword">break</strong>;
-<a class="jxr_linenumber" name="137" href="#137">137</a> <em class="jxr_comment">// Move up a parent on each path for next go around. Path doesn't let us go off the end.</em>
-<a class="jxr_linenumber" name="138" href="#138">138</a> tailPath = tailPath.getParent();
-<a class="jxr_linenumber" name="139" href="#139">139</a> toSearch = toSearch.getParent();
-<a class="jxr_linenumber" name="140" href="#140">140</a> } <strong class="jxr_keyword">while</strong>(tailName.equals(toSearchName));
-<a class="jxr_linenumber" name="141" href="#141">141</a> <strong class="jxr_keyword">return</strong> result;
-<a class="jxr_linenumber" name="142" href="#142">142</a> }
-<a class="jxr_linenumber" name="143" href="#143">143</a>
-<a class="jxr_linenumber" name="144" href="#144">144</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">static</strong> <a href="../../../../../org/apache/hadoop/hbase/util/FSUtils.html">FSUtils</a> getInstance(FileSystem fs, Configuration conf) {
-<a class="jxr_linenumber" name="145" href="#145">145</a> String scheme = fs.getUri().getScheme();
-<a class="jxr_linenumber" name="146" href="#146">146</a> <strong class="jxr_keyword">if</strong> (scheme == <strong class="jxr_keyword">null</strong>) {
-<a class="jxr_linenumber" name="147" href="#147">147</a> LOG.warn(<span class="jxr_string">"Could not find scheme for uri "</span> +
-<a class="jxr_linenumber" name="148" href="#148">148</a> fs.getUri() + <span class="jxr_string">", default to hdfs"</span>);
-<a class="jxr_linenumber" name="149" href="#149">149</a> scheme = <span class="jxr_string">"hdfs"</span>;
-<a class="jxr_linenumber" name="150" href="#150">150</a> }
-<a class="jxr_linenumber" name="151" href="#151">151</a> Class<?> fsUtilsClass = conf.getClass(<span class="jxr_string">"hbase.fsutil."</span> +
-<a class="jxr_linenumber" name="152" href="#152">152</a> scheme + <span class="jxr_string">".impl"</span>, FSHDFSUtils.<strong class="jxr_keyword">class</strong>); <em class="jxr_comment">// Default to HDFS impl</em>
-<a class="jxr_linenumber" name="153" href="#153">153</a> <a href="../../../../../org/apache/hadoop/hbase/util/FSUtils.html">FSUtils</a> fsUtils = (FSUtils)ReflectionUtils.newInstance(fsUtilsClass, conf);
-<a class="jxr_linenumber" name="154" href="#154">154</a> <strong class="jxr_keyword">return</strong> fsUtils;
-<a class="jxr_linenumber" name="155" href="#155">155</a> }
-<a class="jxr_linenumber" name="156" href="#156">156</a>
-<a class="jxr_linenumber" name="157" href="#157">157</a> <em class="jxr_javadoccomment">/**</em>
-<a class="jxr_linenumber" name="158" href="#158">158</a> <em class="jxr_javadoccomment"> * Delete if exists.</em>
-<a class="jxr_linenumber" name="159" href="#159">159</a> <em class="jxr_javadoccomment"> * @param fs filesystem object</em>
-<a class="jxr_linenumber" name="160" href="#160">160</a> <em class="jxr_javadoccomment"> * @param dir directory to delete</em>
-<a class="jxr_linenumber" name="161" href="#161">161</a> <em class="jxr_javadoccomment"> * @return True if deleted <code>dir</code></em>
-<a class="jxr_linenumber" name="162" href="#162">162</a> <em class="jxr_javadoccomment"> * @throws IOException e</em>
-<a class="jxr_linenumber" name="163" href="#163">163</a> <em class="jxr_javadoccomment"> */</em>
-<a class="jxr_linenumber" name="164" href="#164">164</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">static</strong> <strong class="jxr_keyword">boolean</strong> deleteDirectory(<strong class="jxr_keyword">final</strong> FileSystem fs, <strong class="jxr_keyword">final</strong> Path dir)
-<a class="jxr_linenumber" name="165" href="#165">165</a> <strong class="jxr_keyword">throws</strong> IOException {
-<a class="jxr_linenumber" name="166" href="#166">166</a> <strong class="jxr_keyword">return</strong> fs.exists(dir) && fs.delete(dir, <strong class="jxr_keyword">true</strong>);
-<a class="jxr_linenumber" name="167" href="#167">167</a> }
-<a class="jxr_linenumber" name="168" href="#168">168</a>
+<a class="jxr_linenumber" name="64" href="#64">64</a> <strong class="jxr_keyword">import</strong> org.apache.hadoop.hdfs.protocol.FSConstants;
+<a class="jxr_linenumber" name="65" href="#65">65</a> <strong class="jxr_keyword">import</strong> org.apache.hadoop.io.IOUtils;
+<a class="jxr_linenumber" name="66" href="#66">66</a> <strong class="jxr_keyword">import</strong> org.apache.hadoop.io.SequenceFile;
+<a class="jxr_linenumber" name="67" href="#67">67</a> <strong class="jxr_keyword">import</strong> org.apache.hadoop.security.AccessControlException;
+<a class="jxr_linenumber" name="68" href="#68">68</a> <strong class="jxr_keyword">import</strong> org.apache.hadoop.security.UserGroupInformation;
+<a class="jxr_linenumber" name="69" href="#69">69</a> <strong class="jxr_keyword">import</strong> org.apache.hadoop.util.ReflectionUtils;
+<a class="jxr_linenumber" name="70" href="#70">70</a> <strong class="jxr_keyword">import</strong> org.apache.hadoop.util.StringUtils;
+<a class="jxr_linenumber" name="71" href="#71">71</a>
+<a class="jxr_linenumber" name="72" href="#72">72</a> <strong class="jxr_keyword">import</strong> com.google.common.primitives.Ints;
+<a class="jxr_linenumber" name="73" href="#73">73</a> <strong class="jxr_keyword">import</strong> com.google.protobuf.InvalidProtocolBufferException;
+<a class="jxr_linenumber" name="74" href="#74">74</a>
+<a class="jxr_linenumber" name="75" href="#75">75</a> <em class="jxr_javadoccomment">/**</em>
+<a class="jxr_linenumber" name="76" href="#76">76</a> <em class="jxr_javadoccomment"> * Utility methods for interacting with the underlying file system.</em>
+<a class="jxr_linenumber" name="77" href="#77">77</a> <em class="jxr_javadoccomment"> */</em>
+<a class="jxr_linenumber" name="78" href="#78">78</a> @InterfaceAudience.Public
+<a class="jxr_linenumber" name="79" href="#79">79</a> @InterfaceStability.Evolving
+<a class="jxr_linenumber" name="80" href="#80">80</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">abstract</strong> <strong class="jxr_keyword">class</strong> <a href="../../../../../org/apache/hadoop/hbase/util/FSUtils.html">FSUtils</a> {
+<a class="jxr_linenumber" name="81" href="#81">81</a> <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">static</strong> <strong class="jxr_keyword">final</strong> Log LOG = LogFactory.getLog(FSUtils.<strong class="jxr_keyword">class</strong>);
+<a class="jxr_linenumber" name="82" href="#82">82</a>
+<a class="jxr_linenumber" name="83" href="#83">83</a> <em class="jxr_javadoccomment">/**</em><em class="jxr_javadoccomment"> Full access permissions (starting point for a umask) */</em>
+<a class="jxr_linenumber" name="84" href="#84">84</a> <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">static</strong> <strong class="jxr_keyword">final</strong> String FULL_RWX_PERMISSIONS = <span class="jxr_string">"777"</span>;
+<a class="jxr_linenumber" name="85" href="#85">85</a>
+<a class="jxr_linenumber" name="86" href="#86">86</a> <strong class="jxr_keyword">protected</strong> <a href="../../../../../org/apache/hadoop/hbase/util/FSUtils.html">FSUtils</a>() {
+<a class="jxr_linenumber" name="87" href="#87">87</a> <strong class="jxr_keyword">super</strong>();
+<a class="jxr_linenumber" name="88" href="#88">88</a> }
+<a class="jxr_linenumber" name="89" href="#89">89</a>
+<a class="jxr_linenumber" name="90" href="#90">90</a> <em class="jxr_javadoccomment">/**</em>
+<a class="jxr_linenumber" name="91" href="#91">91</a> <em class="jxr_javadoccomment"> * Compare of path component. Does not consider schema; i.e. if schemas different but <code>path</em>
+<a class="jxr_linenumber" name="92" href="#92">92</a> <em class="jxr_javadoccomment"> * <code> starts with <code>rootPath<code>, then the function returns true</em>
+<a class="jxr_linenumber" name="93" href="#93">93</a> <em class="jxr_javadoccomment"> * @param rootPath</em>
+<a class="jxr_linenumber" name="94" href="#94">94</a> <em class="jxr_javadoccomment"> * @param path </em>
+<a class="jxr_linenumber" name="95" href="#95">95</a> <em class="jxr_javadoccomment"> * @return True if <code>path</code> starts with <code>rootPath</code></em>
+<a class="jxr_linenumber" name="96" href="#96">96</a> <em class="jxr_javadoccomment"> */</em>
+<a class="jxr_linenumber" name="97" href="#97">97</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">static</strong> <strong class="jxr_keyword">boolean</strong> isStartingWithPath(<strong class="jxr_keyword">final</strong> Path rootPath, <strong class="jxr_keyword">final</strong> String path) {
+<a class="jxr_linenumber" name="98" href="#98">98</a> String uriRootPath = rootPath.toUri().getPath();
+<a class="jxr_linenumber" name="99" href="#99">99</a> String tailUriPath = (<strong class="jxr_keyword">new</strong> Path(path)).toUri().getPath();
+<a class="jxr_linenumber" name="100" href="#100">100</a> <strong class="jxr_keyword">return</strong> tailUriPath.startsWith(uriRootPath);
+<a class="jxr_linenumber" name="101" href="#101">101</a> }
+<a class="jxr_linenumber" name="102" href="#102">102</a>
+<a class="jxr_linenumber" name="103" href="#103">103</a> <em class="jxr_javadoccomment">/**</em>
+<a class="jxr_linenumber" name="104" href="#104">104</a> <em class="jxr_javadoccomment"> * Compare path component of the Path URI; e.g. if hdfs://a/b/c and /a/b/c, it will compare the</em>
+<a class="jxr_linenumber" name="105" href="#105">105</a> <em class="jxr_javadoccomment"> * '/a/b/c' part. Does not consider schema; i.e. if schemas different but path or subpath matches,</em>
+<a class="jxr_linenumber" name="106" href="#106">106</a> <em class="jxr_javadoccomment"> * the two will equate.</em>
+<a class="jxr_linenumber" name="107" href="#107">107</a> <em class="jxr_javadoccomment"> * @param pathToSearch Path we will be trying to match.</em>
+<a class="jxr_linenumber" name="108" href="#108">108</a> <em class="jxr_javadoccomment"> * @param pathTail</em>
+<a class="jxr_linenumber" name="109" href="#109">109</a> <em class="jxr_javadoccomment"> * @return True if <code>pathTail</code> is tail on the path of <code>pathToSearch</code></em>
+<a class="jxr_linenumber" name="110" href="#110">110</a> <em class="jxr_javadoccomment"> */</em>
+<a class="jxr_linenumber" name="111" href="#111">111</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">static</strong> <strong class="jxr_keyword">boolean</strong> isMatchingTail(<strong class="jxr_keyword">final</strong> Path pathToSearch, String pathTail) {
+<a class="jxr_linenumber" name="112" href="#112">112</a> <strong class="jxr_keyword">return</strong> isMatchingTail(pathToSearch, <strong class="jxr_keyword">new</strong> Path(pathTail));
+<a class="jxr_linenumber" name="113" href="#113">113</a> }
+<a class="jxr_linenumber" name="114" href="#114">114</a>
+<a class="jxr_linenumber" name="115" href="#115">115</a> <em class="jxr_javadoccomment">/**</em>
+<a class="jxr_linenumber" name="116" href="#116">116</a> <em class="jxr_javadoccomment"> * Compare path component of the Path URI; e.g. if hdfs://a/b/c and /a/b/c, it will compare the</em>
+<a class="jxr_linenumber" name="117" href="#117">117</a> <em class="jxr_javadoccomment"> * '/a/b/c' part. If you passed in 'hdfs://a/b/c and b/c, it would return true. Does not consider</em>
+<a class="jxr_linenumber" name="118" href="#118">118</a> <em class="jxr_javadoccomment"> * schema; i.e. if schemas different but path or subpath matches, the two will equate.</em>
+<a class="jxr_linenumber" name="119" href="#119">119</a> <em class="jxr_javadoccomment"> * @param pathToSearch Path we will be trying to match.</em>
+<a class="jxr_linenumber" name="120" href="#120">120</a> <em class="jxr_javadoccomment"> * @param pathTail</em>
+<a class="jxr_linenumber" name="121" href="#121">121</a> <em class="jxr_javadoccomment"> * @return True if <code>pathTail</code> is tail on the path of <code>pathToSearch</code></em>
+<a class="jxr_linenumber" name="122" href="#122">122</a> <em class="jxr_javadoccomment"> */</em>
+<a class="jxr_linenumber" name="123" href="#123">123</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">static</strong> <strong class="jxr_keyword">boolean</strong> isMatchingTail(<strong class="jxr_keyword">final</strong> Path pathToSearch, <strong class="jxr_keyword">final</strong> Path pathTail) {
+<a class="jxr_linenumber" name="124" href="#124">124</a> <strong class="jxr_keyword">if</strong> (pathToSearch.depth() != pathTail.depth()) <strong class="jxr_keyword">return</strong> false;
+<a class="jxr_linenumber" name="125" href="#125">125</a> Path tailPath = pathTail;
+<a class="jxr_linenumber" name="126" href="#126">126</a> String tailName;
+<a class="jxr_linenumber" name="127" href="#127">127</a> Path toSearch = pathToSearch;
+<a class="jxr_linenumber" name="128" href="#128">128</a> String toSearchName;
+<a class="jxr_linenumber" name="129" href="#129">129</a> <strong class="jxr_keyword">boolean</strong> result = false;
+<a class="jxr_linenumber" name="130" href="#130">130</a> <strong class="jxr_keyword">do</strong> {
+<a class="jxr_linenumber" name="131" href="#131">131</a> tailName = tailPath.getName();
+<a class="jxr_linenumber" name="132" href="#132">132</a> <strong class="jxr_keyword">if</strong> (tailName == <strong class="jxr_keyword">null</strong> || tailName.length() <= 0) {
+<a class="jxr_linenumber" name="133" href="#133">133</a> result = <strong class="jxr_keyword">true</strong>;
+<a class="jxr_linenumber" name="134" href="#134">134</a> <strong class="jxr_keyword">break</strong>;
+<a class="jxr_linenumber" name="135" href="#135">135</a> }
+<a class="jxr_linenumber" name="136" href="#136">136</a> toSearchName = toSearch.getName();
+<a class="jxr_linenumber" name="137" href="#137">137</a> <strong class="jxr_keyword">if</strong> (toSearchName == <strong class="jxr_keyword">null</strong> || toSearchName.length() <= 0) <strong class="jxr_keyword">break</strong>;
+<a class="jxr_linenumber" name="138" href="#138">138</a> <em class="jxr_comment">// Move up a parent on each path for next go around. Path doesn't let us go off the end.</em>
+<a class="jxr_linenumber" name="139" href="#139">139</a> tailPath = tailPath.getParent();
+<a class="jxr_linenumber" name="140" href="#140">140</a> toSearch = toSearch.getParent();
+<a class="jxr_linenumber" name="141" href="#141">141</a> } <strong class="jxr_keyword">while</strong>(tailName.equals(toSearchName));
+<a class="jxr_linenumber" name="142" href="#142">142</a> <strong class="jxr_keyword">return</strong> result;
+<a class="jxr_linenumber" name="143" href="#143">143</a> }
+<a class="jxr_linenumber" name="144" href="#144">144</a>
+<a class="jxr_linenumber" name="145" href="#145">145</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">static</strong> <a href="../../../../../org/apache/hadoop/hbase/util/FSUtils.html">FSUtils</a> getInstance(FileSystem fs, Configuration conf) {
+<a class="jxr_linenumber" name="146" href="#146">146</a> String scheme = fs.getUri().getScheme();
+<a class="jxr_linenumber" name="147" href="#147">147</a> <strong class="jxr_keyword">if</strong> (scheme == <strong class="jxr_keyword">null</strong>) {
+<a class="jxr_linenumber" name="148" href="#148">148</a> LOG.warn(<span class="jxr_string">"Could not find scheme for uri "</span> +
+<a class="jxr_linenumber" name="149" href="#149">149</a> fs.getUri() + <span class="jxr_string">", default to hdfs"</span>);
+<a class="jxr_linenumber" name="150" href="#150">150</a> scheme = <span class="jxr_string">"hdfs"</span>;
+<a class="jxr_linenumber" name="151" href="#151">151</a> }
+<a class="jxr_linenumber" name="152" href="#152">152</a> Class<?> fsUtilsClass = conf.getClass(<span class="jxr_string">"hbase.fsutil."</span> +
+<a class="jxr_linenumber" name="153" href="#153">153</a> scheme + <span class="jxr_string">".impl"</span>, FSHDFSUtils.<strong class="jxr_keyword">class</strong>); <em class="jxr_comment">// Default to HDFS impl</em>
+<a class="jxr_linenumber" name="154" href="#154">154</a> <a href="../../../../../org/apache/hadoop/hbase/util/FSUtils.html">FSUtils</a> fsUtils = (FSUtils)ReflectionUtils.newInstance(fsUtilsClass, conf);
+<a class="jxr_linenumber" name="155" href="#155">155</a> <strong class="jxr_keyword">return</strong> fsUtils;
+<a class="jxr_linenumber" name="156" href="#156">156</a> }
+<a class="jxr_linenumber" name="157" href="#157">157</a>
+<a class="jxr_linenumber" name="158" href="#158">158</a> <em class="jxr_javadoccomment">/**</em>
+<a class="jxr_linenumber" name="159" href="#159">159</a> <em class="jxr_javadoccomment"> * Delete if exists.</em>
+<a class="jxr_linenumber" name="160" href="#160">160</a> <em class="jxr_javadoccomment"> * @param fs filesystem object</em>
+<a class="jxr_linenumber" name="161" href="#161">161</a> <em class="jxr_javadoccomment"> * @param dir directory to delete</em>
+<a class="jxr_linenumber" name="162" href="#162">162</a> <em class="jxr_javadoccomment"> * @return True if deleted <code>dir</code></em>
+<a class="jxr_linenumber" name="163" href="#163">163</a> <em class="jxr_javadoccomment"> * @throws IOException e</em>
+<a class="jxr_linenumber" name="164" href="#164">164</a> <em class="jxr_javadoccomment"> */</em>
+<a class="jxr_linenumber" name="165" href="#165">165</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">static</strong> <strong class="jxr_keyword">boolean</strong> deleteDirectory(<strong class="jxr_keyword">final</strong> FileSystem fs, <strong class="jxr_keyword">final</strong> Path dir)
+<a class="jxr_linenumber" name="166" href="#166">166</a> <strong class="jxr_keyword">throws</strong> IOException {
+<a class="jxr_linenumber" name="167" href="#167">167</a> <strong class="jxr_keyword">return</strong> fs.exists(dir) && fs.delete(dir, <strong class="jxr_keyword">true</strong>);
+<a class="jxr_linenumber" name="168" href="#168">168</a> }
<a class="jxr_linenumber" name="169" href="#169">169</a>
-<a class="jxr_linenumber" name="170" href="#170">170</a> <em class="jxr_javadoccomment">/**</em>
-<a class="jxr_linenumber" name="171" href="#171">171</a> <em class="jxr_javadoccomment"> * Create the specified file on the filesystem. By default, this will:</em>
-<a class="jxr_linenumber" name="172" href="#172">172</a> <em class="jxr_javadoccomment"> * <ol></em>
-<a class="jxr_linenumber" name="173" href="#173">173</a> <em class="jxr_javadoccomment"> * <li>overwrite the file if it exists</li></em>
-<a class="jxr_linenumber" name="174" href="#174">174</a> <em class="jxr_javadoccomment"> * <li>apply the umask in the configuration (if it is enabled)</li></em>
-<a class="jxr_linenumber" name="175" href="#175">175</a> <em class="jxr_javadoccomment"> * <li>use the fs configured buffer size (or 4096 if not set)</li></em>
-<a class="jxr_linenumber" name="176" href="#176">176</a> <em class="jxr_javadoccomment"> * <li>use the default replication</li></em>
-<a class="jxr_linenumber" name="177" href="#177">177</a> <em class="jxr_javadoccomment"> * <li>use the default block size</li></em>
-<a class="jxr_linenumber" name="178" href="#178">178</a> <em class="jxr_javadoccomment"> * <li>not track progress</li></em>
-<a class="jxr_linenumber" name="179" href="#179">179</a> <em class="jxr_javadoccomment"> * </ol></em>
-<a class="jxr_linenumber" name="180" href="#180">180</a> <em class="jxr_javadoccomment"> *</em>
-<a class="jxr_linenumber" name="181" href="#181">181</a> <em class="jxr_javadoccomment"> * @param fs {@link FileSystem} on which to write the file</em>
-<a class="jxr_linenumber" name="182" href="#182">182</a> <em class="jxr_javadoccomment"> * @param path {@link Path} to the file to write</em>
-<a class="jxr_linenumber" name="183" href="#183">183</a> <em class="jxr_javadoccomment"> * @return output stream to the created file</em>
-<a class="jxr_linenumber" name="184" href="#184">184</a> <em class="jxr_javadoccomment"> * @throws IOException if the file cannot be created</em>
-<a class="jxr_linenumber" name="185" href="#185">185</a> <em class="jxr_javadoccomment"> */</em>
-<a class="jxr_linenumber" name="186" href="#186">186</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">static</strong> FSDataOutputStream create(FileSystem fs, Path path,
-<a class="jxr_linenumber" name="187" href="#187">187</a> FsPermission perm) <strong class="jxr_keyword">throws</strong> IOException {
-<a class="jxr_linenumber" name="188" href="#188">188</a> <strong class="jxr_keyword">return</strong> create(fs, path, perm, <strong class="jxr_keyword">true</strong>);
-<a class="jxr_linenumber" name="189" href="#189">189</a> }
-<a class="jxr_linenumber" name="190" href="#190">190</a>
-<a class="jxr_linenumber" name="191" href="#191">191</a> <em class="jxr_javadoccomment">/**</em>
-<a class="jxr_linenumber" name="192" href="#192">192</a> <em class="jxr_javadoccomment"> * Create the specified file on the filesystem. By default, this will:</em>
-<a class="jxr_linenumber" name="193" href="#193">193</a> <em class="jxr_javadoccomment"> * <ol></em>
-<a class="jxr_linenumber" name="194" href="#194">194</a> <em class="jxr_javadoccomment"> * <li>apply the umask in the configuration (if it is enabled)</li></em>
-<a class="jxr_linenumber" name="195" href="#195">195</a> <em class="jxr_javadoccomment"> * <li>use the fs configured buffer size (or 4096 if not set)</li></em>
-<a class="jxr_linenumber" name="196" href="#196">196</a> <em class="jxr_javadoccomment"> * <li>use the default replication</li></em>
-<a class="jxr_linenumber" name="197" href="#197">197</a> <em class="jxr_javadoccomment"> * <li>use the default block size</li></em>
-<a class="jxr_linenumber" name="198" href="#198">198</a> <em class="jxr_javadoccomment"> * <li>not track progress</li></em>
-<a class="jxr_linenumber" name="199" href="#199">199</a> <em class="jxr_javadoccomment"> * </ol></em>
-<a class="jxr_linenumber" name="200" href="#200">200</a> <em class="jxr_javadoccomment"> *</em>
-<a class="jxr_linenumber" name="201" href="#201">201</a> <em class="jxr_javadoccomment"> * @param fs {@link FileSystem} on which to write the file</em>
-<a class="jxr_linenumber" name="202" href="#202">202</a> <em class="jxr_javadoccomment"> * @param path {@link Path} to the file to write</em>
-<a class="jxr_linenumber" name="203" href="#203">203</a> <em class="jxr_javadoccomment"> * @param perm</em>
-<a class="jxr_linenumber" name="204" href="#204">204</a> <em class="jxr_javadoccomment"> * @param overwrite Whether or not the created file should be overwritten.</em>
-<a class="jxr_linenumber" name="205" href="#205">205</a> <em class="jxr_javadoccomment"> * @return output stream to the created file</em>
-<a class="jxr_linenumber" name="206" href="#206">206</a> <em class="jxr_javadoccomment"> * @throws IOException if the file cannot be created</em>
-<a class="jxr_linenumber" name="207" href="#207">207</a> <em class="jxr_javadoccomment"> */</em>
-<a class="jxr_linenumber" name="208" href="#208">208</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">static</strong> FSDataOutputStream create(FileSystem fs, Path path,
-<a class="jxr_linenumber" name="209" href="#209">209</a> FsPermission perm, <strong class="jxr_keyword">boolean</strong> overwrite) <strong class="jxr_keyword">throws</strong> IOException {
-<a class="jxr_linenumber" name="210" href="#210">210</a> LOG.debug(<span class="jxr_string">"Creating file="</span> + path + <span class="jxr_string">" with permission="</span> + perm);
-<a class="jxr_linenumber" name="211" href="#211">211</a>
-<a class="jxr_linenumber" name="212" href="#212">212</a> <strong class="jxr_keyword">return</strong> fs.create(path, perm, overwrite,
-<a class="jxr_linenumber" name="213" href="#213">213</a> fs.getConf().getInt(<span class="jxr_string">"io.file.buffer.size"</span>, 4096),
-<a class="jxr_linenumber" name="214" href="#214">214</a> fs.getDefaultReplication(), fs.getDefaultBlockSize(), <strong class="jxr_keyword">null</strong>);
-<a class="jxr_linenumber" name="215" href="#215">215</a> }
-<a class="jxr_linenumber" name="216" href="#216">216</a>
-<a class="jxr_linenumber" name="217" href="#217">217</a> <em class="jxr_javadoccomment">/**</em>
-<a class="jxr_linenumber" name="218" href="#218">218</a> <em class="jxr_javadoccomment"> * Get the file permissions specified in the configuration, if they are</em>
-<a class="jxr_linenumber" name="219" href="#219">219</a> <em class="jxr_javadoccomment"> * enabled.</em>
-<a class="jxr_linenumber" name="220" href="#220">220</a> <em class="jxr_javadoccomment"> *</em>
-<a class="jxr_linenumber" name="221" href="#221">221</a> <em class="jxr_javadoccomment"> * @param fs filesystem that the file will be created on.</em>
-<a class="jxr_linenumber" name="222" href="#222">222</a> <em class="jxr_javadoccomment"> * @param conf configuration to read for determining if permissions are</em>
-<a class="jxr_linenumber" name="223" href="#223">223</a> <em class="jxr_javadoccomment"> * enabled and which to use</em>
-<a class="jxr_linenumber" name="224" href="#224">224</a> <em class="jxr_javadoccomment"> * @param permssionConfKey property key in the configuration to use when</em>
-<a class="jxr_linenumber" name="225" href="#225">225</a> <em class="jxr_javadoccomment"> * finding the permission</em>
-<a class="jxr_linenumber" name="226" href="#226">226</a> <em class="jxr_javadoccomment"> * @return the permission to use when creating a new file on the fs. If</em>
-<a class="jxr_linenumber" name="227" href="#227">227</a> <em class="jxr_javadoccomment"> * special permissions are not specified in the configuration, then</em>
-<a class="jxr_linenumber" name="228" href="#228">228</a> <em class="jxr_javadoccomment"> * the default permissions on the the fs will be returned.</em>
-<a class="jxr_linenumber" name="229" href="#229">229</a> <em class="jxr_javadoccomment"> */</em>
-<a class="jxr_linenumber" name="230" href="#230">230</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">static</strong> FsPermission getFilePermissions(<strong class="jxr_keyword">final</strong> FileSystem fs,
-<a class="jxr_linenumber" name="231" href="#231">231</a> <strong class="jxr_keyword">final</strong> Configuration conf, <strong class="jxr_keyword">final</strong> String permssionConfKey) {
-<a class="jxr_linenumber" name="232" href="#232">232</a> <strong class="jxr_keyword">boolean</strong> enablePermissions = conf.getBoolean(
-<a class="jxr_linenumber" name="233" href="#233">233</a> HConstants.ENABLE_DATA_FILE_UMASK, false);
-<a class="jxr_linenumber" name="234" href="#234">234</a>
-<a class="jxr_linenumber" name="235" href="#235">235</a> <strong class="jxr_keyword">if</strong> (enablePermissions) {
-<a class="jxr_linenumber" name="236" href="#236">236</a> <strong class="jxr_keyword">try</strong> {
-<a class="jxr_linenumber" name="237" href="#237">237</a> FsPermission perm = <strong class="jxr_keyword">new</strong> FsPermission(FULL_RWX_PERMISSIONS);
-<a class="jxr_linenumber" name="238" href="#238">238</a> <em class="jxr_comment">// make sure that we have a mask, if not, go default.</em>
-<a class="jxr_linenumber" name="239" href="#239">239</a> String mask = conf.get(permssionConfKey);
-<a class="jxr_linenumber" name="240" href="#240">240</a> <strong class="jxr_keyword">if</strong> (mask == <strong class="jxr_keyword">null</strong>)
-<a class="jxr_linenumber" name="241" href="#241">241</a> <strong class="jxr_keyword">return</strong> FsPermission.getDefault();
-<a class="jxr_linenumber" name="242" href="#242">242</a> <em class="jxr_comment">// appy the umask</em>
-<a class="jxr_linenumber" name="243" href="#243">243</a> FsPermission umask = <strong class="jxr_keyword">new</strong> FsPermission(mask);
-<a class="jxr_linenumber" name="244" href="#244">244</a> <strong class="jxr_keyword">return</strong> perm.applyUMask(umask);
-<a class="jxr_linenumber" name="245" href="#245">245</a> } <strong class="jxr_keyword">catch</strong> (IllegalArgumentException e) {
-<a class="jxr_linenumber" name="246" href="#246">246</a> LOG.warn(
-<a class="jxr_linenumber" name="247" href="#247">247</a> <span class="jxr_string">"Incorrect umask attempted to be created: "</span>
-<a class="jxr_linenumber" name="248" href="#248">248</a> + conf.get(permssionConfKey)
-<a class="jxr_linenumber" name="249" href="#249">249</a> + <span class="jxr_string">", using default file permissions."</span>, e);
-<a class="jxr_linenumber" name="250" href="#250">250</a> <strong class="jxr_keyword">return</strong> FsPermission.getDefault();
-<a class="jxr_linenumber" name="251" href="#251">251</a> }
-<a class="jxr_linenumber" name="252" href="#252">252</a> }
-<a class="jxr_linenumber" name="253" href="#253">253</a> <strong class="jxr_keyword">return</strong> FsPermission.getDefault();
-<a class="jxr_linenumber" name="254" href="#254">254</a> }
-<a class="jxr_linenumber" name="255" href="#255">255</a>
-<a class="jxr_linenumber" name="256" href="#256">256</a> <em class="jxr_javadoccomment">/**</em>
-<a class="jxr_linenumber" name="257" href="#257">257</a> <em class="jxr_javadoccomment"> * Checks to see if the specified file system is available</em>
-<a class="jxr_linenumber" name="258" href="#258">258</a> <em class="jxr_javadoccomment"> *</em>
-<a class="jxr_linenumber" name="259" href="#259">259</a> <em class="jxr_javadoccomment"> * @param fs filesystem</em>
-<a class="jxr_linenumber" name="260" href="#260">260</a> <em class="jxr_javadoccomment"> * @throws IOException e</em>
-<a class="jxr_linenumber" name="261" href="#261">261</a> <em class="jxr_javadoccomment"> */</em>
-<a class="jxr_linenumber" name="262" href="#262">262</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">static</strong> <strong class="jxr_keyword">void</strong> checkFileSystemAvailable(<strong class="jxr_keyword">final</strong> FileSystem fs)
-<a class="jxr_linenumber" name="263" href="#263">263</a> <strong class="jxr_keyword">throws</strong> IOException {
-<a class="jxr_linenumber" name="264" href="#264">264</a> <strong class="jxr_keyword">if</strong> (!(fs instanceof DistributedFileSystem)) {
-<a class="jxr_linenumber" name="265" href="#265">265</a> <strong class="jxr_keyword">return</strong>;
-<a class="jxr_linenumber" name="266" href="#266">266</a> }
-<a class="jxr_linenumber" name="267" href="#267">267</a> IOException exception = <strong class="jxr_keyword">null</strong>;
-<a class="jxr_linenumber" name="268" href="#268">268</a> DistributedFileSystem dfs = (DistributedFileSystem) fs;
-<a class="jxr_linenumber" name="269" href="#269">269</a> <strong class="jxr_keyword">try</strong> {
-<a class="jxr_linenumber" name="270" href="#270">270</a> <strong class="jxr_keyword">if</strong> (dfs.exists(<strong class="jxr_keyword">new</strong> Path(<span class="jxr_string">"/"</span>))) {
-<a class="jxr_linenumber" name="271" href="#271">271</a> <strong class="jxr_keyword">return</strong>;
-<a class="jxr_linenumber" name="272" href="#272">272</a> }
-<a class="jxr_linenumber" name="273" href="#273">273</a> } <strong class="jxr_keyword">catch</strong> (IOException e) {
-<a class="jxr_linenumber" name="274" href="#274">274</a> exception = RemoteExceptionHandler.checkIOException(e);
-<a class="jxr_linenumber" name="275" href="#275">275</a> }
-<a class="jxr_linenumber" name="276" href="#276">276</a> <strong class="jxr_keyword">try</strong> {
-<a class="jxr_linenumber" name="277" href="#277">277</a> fs.close();
-<a class="jxr_linenumber" name="278" href="#278">278</a> } <strong class="jxr_keyword">catch</strong> (Exception e) {
-<a class="jxr_linenumber" name="279" href="#279">279</a> LOG.error(<span class="jxr_string">"file system close failed: "</span>, e);
-<a class="jxr_linenumber" name="280" href="#280">280</a> }
-<a class="jxr_linenumber" name="281" href="#281">281</a> IOException io = <strong class="jxr_keyword">new</strong> IOException(<span class="jxr_string">"File system is not available"</span>);
-<a class="jxr_linenumber" name="282" href="#282">282</a> io.initCause(exception);
-<a class="jxr_linenumber" name="283" href="#283">283</a> <strong class="jxr_keyword">throw</strong> io;
-<a class="jxr_linenumber" name="284" href="#284">284</a> }
-<a class="jxr_linenumber" name="285" href="#285">285</a>
-<a class="jxr_linenumber" name="286" href="#286">286</a> <em class="jxr_javadoccomment">/**</em>
-<a class="jxr_linenumber" name="287" href="#287">287</a> <em class="jxr_javadoccomment"> * We use reflection because {@link DistributedFileSystem#setSafeMode(</em>
-<a class="jxr_linenumber" name="288" href="#288">288</a> <em class="jxr_javadoccomment"> * FSConstants.SafeModeAction action, boolean isChecked)} is not in hadoop 1.1</em>
-<a class="jxr_linenumber" name="289" href="#289">289</a> <em class="jxr_javadoccomment"> * </em>
-<a class="jxr_linenumber" name="290" href="#290">290</a> <em class="jxr_javadoccomment"> * @param dfs</em>
-<a class="jxr_linenumber" name="291" href="#291">291</a> <em class="jxr_javadoccomment"> * @return whether we're in safe mode</em>
-<a class="jxr_linenumber" name="292" href="#292">292</a> <em class="jxr_javadoccomment"> * @throws IOException</em>
-<a class="jxr_linenumber" name="293" href="#293">293</a> <em class="jxr_javadoccomment"> */</em>
-<a class="jxr_linenumber" name="294" href="#294">294</a> <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">static</strong> <strong class="jxr_keyword">boolean</strong> isInSafeMode(DistributedFileSystem dfs) <strong class="jxr_keyword">throws</strong> IOException {
-<a class="jxr_linenumber" name="295" href="#295">295</a> <strong class="jxr_keyword">boolean</strong> inSafeMode = false;
-<a class="jxr_linenumber" name="296" href="#296">296</a> <strong class="jxr_keyword">try</strong> {
-<a class="jxr_linenumber" name="297" href="#297">297</a> Method m = DistributedFileSystem.<strong class="jxr_keyword">class</strong>.getMethod(<span class="jxr_string">"setSafeMode"</span>, <strong class="jxr_keyword">new</strong> Class<?> []{
-<a class="jxr_linenumber" name="298" href="#298">298</a> org.apache.hadoop.hdfs.protocol.FSConstants.SafeModeAction.<strong class="jxr_keyword">class</strong>, <strong class="jxr_keyword">boolean</strong>.<strong class="jxr_keyword">class</strong>});
-<a class="jxr_linenumber" name="299" href="#299">299</a> inSafeMode = (Boolean) m.invoke(dfs,
-<a class="jxr_linenumber" name="300" href="#300">300</a> org.apache.hadoop.hdfs.protocol.FSConstants.SafeModeAction.SAFEMODE_GET, <strong class="jxr_keyword">true</strong>);
-<a class="jxr_linenumber" name="301" href="#301">301</a> } <strong class="jxr_keyword">catch</strong> (Exception e) {
-<a class="jxr_linenumber" name="302" href="#302">302</a> <strong class="jxr_keyword">if</strong> (e instanceof IOException) <strong class="jxr_keyword">throw</strong> (IOException) e;
-<a class="jxr_linenumber" name="303" href="#303">303</a>
-<a class="jxr_linenumber" name="304" href="#304">304</a> <em class="jxr_comment">// Check whether dfs is on safemode.</em>
-<a class="jxr_linenumber" name="305" href="#305">305</a> inSafeMode = dfs.setSafeMode(
-<a class="jxr_linenumber" name="306" href="#306">306</a> org.apache.hadoop.hdfs.protocol.FSConstants.SafeModeAction.SAFEMODE_GET);
-<a class="jxr_linenumber" name="307" href="#307">307</a> }
-<a class="jxr_linenumber" name="308" href="#308">308</a> <strong class="jxr_keyword">return</strong> inSafeMode;
-<a class="jxr_linenumber" name="309" href="#309">309</a> }
-<a class="jxr_linenumber" name="310" href="#310">310</a>
-<a class="jxr_linenumber" name="311" href="#311">311</a> <em class="jxr_javadoccomment">/**</em>
-<a class="jxr_linenumber" name="312" href="#312">312</a> <em class="jxr_javadoccomment"> * Check whether dfs is in safemode.</em>
-<a class="jxr_linenumber" name="313" href="#313">313</a> <em class="jxr_javadoccomment"> * @param conf</em>
-<a class="jxr_linenumber" name="314" href="#314">314</a> <em class="jxr_javadoccomment"> * @throws IOException</em>
-<a class="jxr_linenumber" name="315" href="#315">315</a> <em class="jxr_javadoccomment"> */</em>
-<a class="jxr_linenumber" name="316" href="#316">316</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">static</strong> <strong class="jxr_keyword">void</strong> checkDfsSafeMode(<strong class="jxr_keyword">final</strong> Configuration conf)
-<a class="jxr_linenumber" name="317" href="#317">317</a> <strong class="jxr_keyword">throws</strong> IOException {
-<a class="jxr_linenumber" name="318" href="#318">318</a> <strong class="jxr_keyword">boolean</strong> isInSafeMode = false;
-<a class="jxr_linenumber" name="319" href="#319">319</a> FileSystem fs = FileSystem.get(conf);
-<a class="jxr_linenumber" name="320" href="#320">320</a> <strong class="jxr_keyword">if</strong> (fs instanceof DistributedFileSystem) {
-<a class="jxr_linenumber" name="321" href="#321">321</a> DistributedFileSystem dfs = (DistributedFileSystem)fs;
-<a class="jxr_linenumber" name="322" href="#322">322</a> isInSafeMode = isInSafeMode(dfs);
-<a class="jxr_linenumber" name="323" href="#323">323</a> }
-<a class="jxr_linenumber" name="324" href="#324">324</a> <strong class="jxr_keyword">if</strong> (isInSafeMode) {
-<a class="jxr_linenumber" name="325" href="#325">325</a> <strong class="jxr_keyword">throw</strong> <strong class="jxr_keyword">new</strong> IOException(<span class="jxr_string">"File system is in safemode, it can't be written now"</span>);
-<a class="jxr_linenumber" name="326" href="#326">326</a> }
-<a class="jxr_linenumber" name="327" href="#327">327</a> }
-<a class="jxr_linenumber" name="328" href="#328">328</a>
-<a class="jxr_linenumber" name="329" href="#329">329</a> <em class="jxr_javadoccomment">/**</em>
-<a class="jxr_linenumber" name="330" href="#330">330</a> <em class="jxr_javadoccomment"> * Verifies current version of file system</em>
-<a class="jxr_linenumber" name="331" href="#331">331</a> <em class="jxr_javadoccomment"> *</em>
-<a class="jxr_linenumber" name="332" href="#332">332</a> <em class="jxr_javadoccomment"> * @param fs filesystem object</em>
-<a class="jxr_linenumber" name="333" href="#333">333</a> <em class="jxr_javadoccomment"> * @param rootdir root hbase directory</em>
-<a class="jxr_linenumber" name="334" href="#334">334</a> <em class="jxr_javadoccomment"> * @return null if no version file exists, version string otherwise.</em>
-<a class="jxr_linenumber" name="335" href="#335">335</a> <em class="jxr_javadoccomment"> * @throws IOException e</em>
-<a class="jxr_linenumber" name="336" href="#336">336</a> <em class="jxr_javadoccomment"> * @throws org.apache.hadoop.hbase.exceptions.DeserializationException</em>
-<a class="jxr_linenumber" name="337" href="#337">337</a> <em class="jxr_javadoccomment"> */</em>
-<a class="jxr_linenumber" name="338" href="#338">338</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">static</strong> String getVersion(FileSystem fs, Path rootdir)
-<a class="jxr_linenumber" name="339" href="#339">339</a> <strong class="jxr_keyword">throws</strong> IOException, <a href="../../../../../org/apache/hadoop/hbase/exceptions/DeserializationException.html">DeserializationException</a> {
-<a class="jxr_linenumber" name="340" href="#340">340</a> Path versionFile = <strong class="jxr_keyword">new</strong> Path(rootdir, HConstants.VERSION_FILE_NAME);
-<a class="jxr_linenumber" name="341" href="#341">341</a> FileStatus[] status = <strong class="jxr_keyword">null</strong>;
-<a class="jxr_linenumber" name="342" href="#342">342</a> <strong class="jxr_keyword">try</strong> {
-<a class="jxr_linenumber" name="343" href="#343">343</a> <em class="jxr_comment">// hadoop 2.0 throws FNFE if directory does not exist. </em>
-<a class="jxr_linenumber" name="344" href="#344">344</a> <em class="jxr_comment">// hadoop 1.0 returns null if directory does not exist.</em>
-<a class="jxr_linenumber" name="345" href="#345">345</a> status = fs.listStatus(versionFile);
-<a class="jxr_linenumber" name="346" href="#346">346</a> } <strong class="jxr_keyword">catch</strong> (FileNotFoundException fnfe) {
-<a class="jxr_linenumber" name="347" href="#347">347</a> <strong class="jxr_keyword">return</strong> <strong class="jxr_keyword">null</strong>;
-<a class="jxr_linenumber" name="348" href="#348">348</a> }
-<a class="jxr_linenumber" name="349" href="#349">349</a> <strong class="jxr_keyword">if</strong> (status == <strong class="jxr_keyword">null</strong> || status.length == 0) <strong class="jxr_keyword">return</strong> <strong class="jxr_keyword">null</strong>;
-<a class="jxr_linenumber" name="350" href="#350">350</a> String version = <strong class="jxr_keyword">null</strong>;
-<a class="jxr_linenumber" name="351" href="#351">351</a> byte [] content = <strong class="jxr_keyword">new</strong> byte [(<strong class="jxr_keyword">int</strong>)status[0].getLen()];
-<a class="jxr_linenumber" name="352" href="#352">352</a> FSDataInputStream s = fs.open(versionFile);
-<a class="jxr_linenumber" name="353" href="#353">353</a> <strong class="jxr_keyword">try</strong> {
-<a class="jxr_linenumber" name="354" href="#354">354</a> IOUtils.readFully(s, content, 0, content.length);
-<a class="jxr_linenumber" name="355" href="#355">355</a> <strong class="jxr_keyword">if</strong> (ProtobufUtil.isPBMagicPrefix(content)) {
-<a class="jxr_linenumber" name="356" href="#356">356</a> version = parseVersionFrom(content);
-<a class="jxr_linenumber" name="357" href="#357">357</a> } <strong class="jxr_keyword">else</strong> {
-<a class="jxr_linenumber" name="358" href="#358">358</a> <em class="jxr_comment">// Presume it pre-pb format.</em>
-<a class="jxr_linenumber" name="359" href="#359">359</a> InputStream is = <strong class="jxr_keyword">new</strong> ByteArrayInputStream(content);
-<a class="jxr_linenumber" name="360" href="#360">360</a> DataInputStream dis = <strong class="jxr_keyword">new</strong> DataInputStream(is);
-<a class="jxr_linenumber" name="361" href="#361">361</a> <strong class="jxr_keyword">try</strong> {
-<a class="jxr_linenumber" name="362" href="#362">362</a> version = dis.readUTF();
-<a class="jxr_linenumber" name="363" href="#363">363</a> } <strong class="jxr_keyword">finally</strong> {
-<a class="jxr_linenumber" name="364" href="#364">364</a> dis.close();
-<a class="jxr_linenumber" name="365" href="#365">365</a> }
-<a class="jxr_linenumber" name="366" href="#366">366</a> <em class="jxr_comment">// Update the format</em>
-<a class="jxr_linenumber" name="367" href="#367">367</a> LOG.info(<span class="jxr_string">"Updating the hbase.version file format with version="</span> + version);
-<a class="jxr_linenumber" name="368" href="#368">368</a> setVersion(fs, rootdir, version, 0, HConstants.DEFAULT_VERSION_FILE_WRITE_ATTEMPTS);
-<a class="jxr_linenumber" name="369" href="#369">369</a> }
-<a class="jxr_linenumber" name="370" href="#370">370</a> } <strong class="jxr_keyword">catch</strong> (EOFException eof) {
-<a class="jxr_linenumber" name="371" href="#371">371</a> LOG.warn(<span class="jxr_string">"Version file was empty, odd, will try to set it."</span>);
-<a class="jxr_linenumber" name="372" href="#372">372</a> } <strong class="jxr_keyword">finally</strong> {
-<a class="jxr_linenumber" name="373" href="#373">373</a> s.close();
-<a class="jxr_linenumber" name="374" href="#374">374</a> }
-<a class="jxr_linenumber" name="375" href="#375">375</a> <strong class="jxr_keyword">return</strong> version;
-<a class="jxr_linenumber" name="376" href="#376">376</a> }
-<a class="jxr_linenumber" name="377" href="#377">377</a>
-<a class="jxr_linenumber" name="378" href="#378">378</a> <em class="jxr_javadoccomment">/**</em>
-<a class="jxr_linenumber" name="379" href="#379">379</a> <em class="jxr_javadoccomment"> * Parse the content of the ${HBASE_ROOTDIR}/hbase.version file.</em>
-<a class="jxr_linenumber" name="380" href="#380">380</a> <em class="jxr_javadoccomment"> * @param bytes The byte content of the hbase.version file.</em>
-<a class="jxr_linenumber" name="381" href="#381">381</a> <em class="jxr_javadoccomment"> * @return The version found in the file as a String.</em>
-<a class="jxr_linenumber" name="382" href="#382">382</a> <em class="jxr_javadoccomment"> * @throws DeserializationException</em>
-<a class="jxr_linenumber" name="383" href="#383">383</a> <em class="jxr_javadoccomment"> */</em>
-<a class="jxr_linenumber" name="384" href="#384">384</a> <strong class="jxr_keyword">static</strong> String parseVersionFrom(<strong class="jxr_keyword">final</strong> byte [] bytes)
-<a class="jxr_linenumber" name="385" href="#385">385</a> <strong class="jxr_keyword">throws</strong> <a href="../../../../../org/apache/hadoop/hbase/exceptions/DeserializationException.html">DeserializationException</a> {
-<a class="jxr_linenumber" name="386" href="#386">386</a> ProtobufUtil.expectPBMagicPrefix(bytes);
-<a class="jxr_linenumber" name="387" href="#387">387</a> <strong class="jxr_keyword">int</strong> pblen = ProtobufUtil.lengthOfPBMagic();
-<a class="jxr_linenumber" name="388" href="#388">388</a> FSProtos.HBaseVersionFileContent.Builder builder =
-<a class="jxr_linenumber" name="389" href="#389">389</a> FSProtos.HBaseVersionFileContent.newBuilder();
-<a class="jxr_linenumber" name="390" href="#390">390</a> FSProtos.HBaseVersionFileContent fileContent;
-<a class="jxr_linenumber" name="391" href="#391">391</a> <strong class="jxr_keyword">try</strong> {
-<a class="jxr_linenumber" name="392" href="#392">392</a> fileContent = builder.mergeFrom(bytes, pblen, bytes.length - pblen).build();
-<a class="jxr_linenumber" name="393" href="#393">393</a> <strong class="jxr_keyword">return</strong> fileContent.getVersion();
-<a class="jxr_linenumber" name="394" href="#394">394</a> } <strong class="jxr_keyword">catch</strong> (InvalidProtocolBufferException e) {
-<a class="jxr_linenumber" name="395" href="#395">395</a> <em class="jxr_comment">// Convert</em>
-<a class="jxr_linenumber" name="396" href="#396">396</a> <strong class="jxr_keyword">throw</strong> <strong class="jxr_keyword">new</strong> <a href="../../../../../org/apache/hadoop/hbase/exceptions/DeserializationException.html">DeserializationException</a>(e);
-<a class="jxr_linenumber" name="397" href="#397">397</a> }
-<a class="jxr_linenumber" name="398" href="#398">398</a> }
-<a class="jxr_linenumber" name="399" href="#399">399</a>
-<a class="jxr_linenumber" name="400" href="#400">400</a> <em class="jxr_javadoccomment">/**</em>
-<a class="jxr_linenumber" name="401" href="#401">401</a> <em class="jxr_javadoccomment"> * Create the content to write into the ${HBASE_ROOTDIR}/hbase.version file.</em>
-<a class="jxr_linenumber" name="402" href="#402">402</a> <em class="jxr_javadoccomment"> * @param version Version to persist</em>
-<a class="jxr_linenumber" name="403" href="#403">403</a> <em class="jxr_javadoccomment"> * @return Serialized protobuf with <code>version</code> content and a bit of pb magic for a prefix.</em>
-<a class="jxr_linenumber" name="404" href="#404">404</a> <em class="jxr_javadoccomment"> */</em>
-<a class="jxr_linenumber" name="405" href="#405">405</a> <strong class="jxr_keyword">static</strong> byte [] toVersionByteArray(<strong class="jxr_keyword">final</strong> String version) {
-<a class="jxr_linenumber" name="406" href="#406">406</a> FSProtos.HBaseVersionFileContent.Builder builder =
-<a class="jxr_linenumber" name="407" href="#407">407</a> FSProtos.HBaseVersionFileContent.newBuilder();
-<a class="jxr_linenumber" name="408" href="#408">408</a> <strong class="jxr_keyword">return</strong> ProtobufUtil.prependPBMagic(builder.setVersion(version).build().toByteArray());
-<a class="jxr_linenumber" name="409" href="#409">409</a> }
-<a class="jxr_linenumber" name="410" href="#410">410</a>
-<a class="jxr_linenumber" name="411" href="#411">411</a> <em class="jxr_javadoccomment">/**</em>
-<a class="jxr_linenumber" name="412" href="#412">412</a> <em class="jxr_javadoccomment"> * Verifies current version of file system</em>
-<a class="jxr_linenumber" name="413" href="#413">413</a> <em class="jxr_javadoccomment"> *</em>
-<a class="jxr_linenumber" name="414" href="#414">414</a> <em class="jxr_javadoccomment"> * @param fs file system</em>
-<a class="jxr_linenumber" name="415" href="#415">415</a> <em class="jxr_javadoccomment"> * @param rootdir root directory of HBase installation</em>
-<a class="jxr_linenumber" name="416" href="#416">416</a> <em class="jxr_javadoccomment"> * @param message if true, issues a message on System.out</em>
-<a class="jxr_linenumber" name="417" href="#417">417</a> <em class="jxr_javadoccomment"> *</em>
-<a class="jxr_linenumber" name="418" href="#418">418</a> <em class="jxr_javadoccomment"> * @throws IOException e</em>
-<a class="jxr_linenumber" name="419" href="#419">419</a> <em class="jxr_javadoccomment"> * @throws DeserializationException</em>
-<a class="jxr_linenumber" name="420" href="#420">420</a> <em class="jxr_javadoccomment"> */</em>
-<a class="jxr_linenumber" name="421" href="#421">421</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">static</strong> <strong class="jxr_keyword">void</strong> checkVersion(FileSystem fs, Path rootdir, <strong class="jxr_keyword">boolean</strong> message)
-<a class="jxr_linenumber" name="422" href="#422">422</a> <strong class="jxr_keyword">throws</strong> IOException, <a href="../../../../../org/apache/hadoop/hbase/exceptions/DeserializationException.html">DeserializationException</a> {
-<a class="jxr_linenumber" name="423" href="#423">423</a> checkVersion(fs, rootdir, message, 0, HConstants.DEFAULT_VERSION_FILE_WRITE_ATTEMPTS);
-<a class="jxr_linenumber" name="424" href="#424">424</a> }
-<a class="jxr_linenumber" name="425" href="#425">425</a>
-<a class="jxr_linenumber" name="426" href="#426">426</a> <em class="jxr_javadoccomment">/**</em>
-<a class="jxr_linenumber" name="427" href="#427">427</a> <em class="jxr_javadoccomment"> * Verifies current version of file system</em>
-<a class="jxr_linenumber" name="428" href="#428">428</a> <em class="jxr_javadoccomment"> *</em>
-<a class="jxr_linenumber" name="429" href="#429">429</a> <em class="jxr_javadoccomment"> * @param fs file system</em>
-<a class="jxr_linenumber" name="430" href="#430">430</a> <em class="jxr_javadoccomment"> * @param rootdir root directory of HBase installation</em>
-<a class="jxr_linenumber" name="431" href="#431">431</a> <em class="jxr_javadoccomment"> * @param message if true, issues a message on System.out</em>
-<a class="jxr_linenumber" name="432" href="#432">432</a> <em class="jxr_javadoccomment"> * @param wait wait interval</em>
-<a class="jxr_linenumber" name="433" href="#433">433</a> <em class="jxr_javadoccomment"> * @param retries number of times to retry</em>
-<a class="jxr_linenumber" name="434" href="#434">434</a> <em class="jxr_javadoccomment"> *</em>
-<a class="jxr_linenumber" name="435" href="#435">435</a> <em class="jxr_javadoccomment"> * @throws IOException e</em>
-<a class="jxr_linenumber" name="436" href="#436">436</a> <em class="jxr_javadoccomment"> * @throws DeserializationException</em>
-<a class="jxr_linenumber" name="437" href="#437">437</a> <em class="jxr_javadoccomment"> */</em>
-<a class="jxr_linenumber" name="438" href="#438">438</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">static</strong> <strong class="jxr_keyword">void</strong> checkVersion(FileSystem fs, Path rootdir,
-<a class="jxr_linenumber" name="439" href="#439">439</a> <strong class="jxr_keyword">boolean</strong> message, <strong class="jxr_keyword">int</strong> wait, <strong class="jxr_keyword">int</strong> retries)
-<a class="jxr_linenumber" name="440" href="#440">440</a> <strong class="jxr_keyword">throws</strong> IOException, <a href="../../../../../org/apache/hadoop/hbase/exceptions/DeserializationException.html">DeserializationException</a> {
-<a class="jxr_linenumber" name="441" href="#441">441</a> String version = getVersion(fs, rootdir);
-<a class="jxr_linenumber" name="442" href="#442">442</a> <strong class="jxr_keyword">if</strong> (version == <strong class="jxr_keyword">null</strong>) {
-<a class="jxr_linenumber" name="443" href="#443">443</a> <strong class="jxr_keyword">if</strong> (!metaRegionExists(fs, rootdir)) {
-<a class="jxr_linenumber" name="444" href="#444">444</a> <em class="jxr_comment">// rootDir is empty (no version file and no root region)</em>
-<a class="jxr_linenumber" name="445" href="#445">445</a> <em class="jxr_comment">// just create new version file (HBASE-1195)</em>
-<a class="jxr_linenumber" name="446" href="#446">446</a> setVersion(fs, rootdir, wait, retries);
-<a class="jxr_linenumber" name="447" href="#447">447</a> <strong class="jxr_keyword">return</strong>;
-<a class="jxr_linenumber" name="448" href="#448">448</a> }
-<a class="jxr_linenumber" name="449" href="#449">449</a> } <strong class="jxr_keyword">else</strong> <strong class="jxr_keyword">if</strong> (version.compareTo(HConstants.FILE_SYSTEM_VERSION) == 0) <strong class="jxr_keyword">return</strong>;
-<a class="jxr_linenumber" name="450" href="#450">450</a>
-<a class="jxr_linenumber" name="451" href="#451">451</a> <em class="jxr_comment">// version is deprecated require migration</em>
-<a class="jxr_linenumber" name="452" href="#452">452</a> <em class="jxr_comment">// Output on stdout so user sees it in terminal.</em>
-<a class="jxr_linenumber" name="453" href="#453">453</a> String msg = <span class="jxr_string">"File system needs to be upgraded."</span>
-<a class="jxr_linenumber" name="454" href="#454">454</a> + <span class="jxr_string">" You have version "</span> + version
-<a class="jxr_linenumber" name="455" href="#455">455</a> + <span class="jxr_string">" and I want version "</span> + HConstants.FILE_SYSTEM_VERSION
-<a class="jxr_linenumber" name="456" href="#456">456</a> + <span class="jxr_string">". Run the '${HBASE_HOME}/bin/hbase migrate' script."</span>;
-<a class="jxr_linenumber" name="457" href="#457">457</a> <strong class="jxr_keyword">if</strong> (message) {
-<a class="jxr_linenumber" name="458" href="#458">458</a> System.out.println(<span class="jxr_string">"WARNING! "</span> + msg);
-<a class="jxr_linenumber" name="459" href="#459">459</a> }
-<a class="jxr_linenumber" name="460" href="#460">460</a> <strong class="jxr_keyword">throw</strong> <strong class="jxr_keyword">new</strong> <a href="../../../../../org/apache/hadoop/hbase/exceptions/FileSystemVersionException.html">FileSystemVersionException</a>(msg);
-<a class="jxr_linenumber" name="461" href="#461">461</a> }
-<a class="jxr_linenumber" name="462" href="#462">462</a>
-<a class="jxr_linenumber" name="463" href="#463">463</a> <em class="jxr_javadoccomment">/**</em>
-<a class="jxr_linenumber" name="464" href="#464">464</a> <em class="jxr_javadoccomment"> * Sets version of file system</em>
-<a class="jxr_linenumber" name="465" href="#465">465</a> <em class="jxr_javadoccomment"> *</em>
-<a class="jxr_linenumber" name="466" href="#466">466</a> <em class="jxr_javadoccomment"> * @param fs filesystem object</em>
-<a class="jxr_linenumber" name="467" href="#467">467</a> <em class="jxr_javadoccomment"> * @param rootdir hbase root</em>
-<a class="jxr_linenumber" name="468" href="#468">468</a> <em class="jxr_javadoccomment"> * @throws IOException e</em>
-<a class="jxr_linenumber" name="469" href="#469">469</a> <em class="jxr_javadoccomment"> */</em>
-<a class="jxr_linenumber" name="470" href="#470">470</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">static</strong> <strong class="jxr_keyword">void</strong> setVersion(FileSystem fs, Path rootdir)
-<a class="jxr_linenumber" name="471" href="#471">471</a> <strong class="jxr_keyword">throws</strong> IOException {
-<a class="jxr_linenumber" name="472" href="#472">472</a> setVersion(fs, rootdir, HConstants.FILE_SYSTEM_VERSION, 0,
-<a class="jxr_linenumber" name="473" href="#473">473</a> HConstants.DEFAULT_VERSION_FILE_WRITE_ATTEMPTS);
-<a class="jxr_linenumber" name="474" href="#474">474</a> }
-<a class="jxr_linenumber" name="475" href="#475">475</a>
-<a class="jxr_linenumber" name="476" href="#476">476</a> <em class="jxr_javadoccomment">/**</em>
-<a class="jxr_linenumber" name="477" href="#477">477</a> <em class="jxr_javadoccomment"> * Sets version of file system</em>
-<a class="jxr_linenumber" name="478" href="#478">478</a> <em class="jxr_javadoccomment"> *</em>
-<a class="jxr_linenumber" name="479" href="#479">479</a> <em class="jxr_javadoccomment"> * @param fs filesystem object</em>
-<a class="jxr_linenumber" name="480" href="#480">480</a> <em class="jxr_javadoccomment"> * @param rootdir hbase root</em>
-<a class="jxr_linenumber" name="481" href="#481">481</a> <em class="jxr_javadoccomment"> * @param wait time to wait for retry</em>
-<a class="jxr_linenumber" name="482" href="#482">482</a> <em class="jxr_javadoccomment"> * @param retries number of times to retry before failing</em>
-<a class="jxr_linenumber" name="483" href="#483">483</a> <em class="jxr_javadoccomment"> * @throws IOException e</em>
-<a class="jxr_linenumber" name="484" href="#484">484</a> <em class="jxr_javadoccomment"> */</em>
-<a class="jxr_linenumber" name="485" href="#485">485</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">static</strong> <strong class="jxr_keyword">void</strong> setVersion(FileSystem fs, Path rootdir, <strong class="jxr_keyword">int</strong> wait, <strong class="jxr_keyword">int</strong> retries)
-<a class="jxr_linenumber" name="486" href="#486">486</a> <strong class="jxr_keyword">throws</strong> IOException {
-<a class="jxr_linenumber" name="487" href="#487">487</a> setVersion(fs, rootdir, HConstants.FILE_SYSTEM_VERSION, wait, retries);
-<a class="jxr_linenumber" name="488" href="#488">488</a> }
-<a class="jxr_linenumber" name="489" href="#489">489</a>
-<a class="jxr_linenumber" name="490" href="#490">490</a>
-<a class="jxr_linenumber" name="491" href="#491">491</a> <em class="jxr_javadoccomment">/**</em>
-<a class="jxr_linenumber" name="492" href="#492">492</a> <em class="jxr_javadoccomment"> * Sets version of file system</em>
-<a class="jxr_linenumber" name="493" href="#493">493</a> <em class="jxr_javadoccomment"> *</em>
-<a class="jxr_linenumber" name="494" href="#494">494</a> <em class="jxr_javadoccomment"> * @param fs filesystem object</em>
-<a class="jxr_linenumber" name="495" href="#495">495</a> <em class="jxr_javadoccomment"> * @param rootdir hbase root directory</em>
-<a class="jxr_linenumber" name="496" href="#496">496</a> <em class="jxr_javadoccomment"> * @param version version to set</em>
-<a class="jxr_linenumber" name="497" href="#497">497</a> <em class="jxr_javadoccomment"> * @param wait time to wait for retry</em>
-<a class="jxr_linenumber" name="498" href="#498">498</a> <em class="jxr_javadoccomment"> * @param retries number of times to retry before throwing an IOException</em>
-<a class="jxr_linenumber" name="499" href="#499">499</a> <em class="jxr_javadoccomment"> * @throws IOException e</em>
-<a class="jxr_linenumber" name="500" href="#500">500</a> <em class="jxr_javadoccomment"> */</em>
-<a class="jxr_linenumber" name="501" href="#501">501</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">static</strong> <strong class="jxr_keyword">void</strong> setVersion(FileSystem fs, Path rootdir, String version,
-<a class="jxr_linenumber" name="502" href="#502">502</a> <strong class="jxr_keyword">int</strong> wait, <strong class="jxr_keyword">int</strong> retries) <strong class="jxr_keyword">throws</strong> IOException {
-<a class="jxr_linenumber" name="503" href="#503">503</a> Path versionFile = <strong class="jxr_keyword">new</strong> Path(rootdir, HConstants.VERSION_FILE_NAME);
-<a class="jxr_linenumber" name="504" href="#504">504</a> <strong class="jxr_keyword">while</strong> (<strong class="jxr_keyword">true</strong>) {
-<a class="jxr_linenumber" name="505" href="#505">505</a> <strong class="jxr_keyword">try</strong> {
-<a class="jxr_linenumber" name="506" href="#506">506</a> FSDataOutputStream s = fs.create(versionFile);
-<a class="jxr_linenumber" name="507" href="#507">507</a> s.write(toVersionByteArray(version));
-<a class="jxr_linenumber" name="508" href="#508">508</a> s.close();
-<a class="jxr_linenumber" name="509" href="#509">509</a> LOG.debug(<span class="jxr_string">"Created version file at "</span> + rootdir.toString() + <span class="jxr_string">" with version="</span> + version);
-<a class="jxr_linenumber" name="510" href="#510">510</a> <strong class="jxr_keyword">return</strong>;
-<a class="jxr_linenumber" name="511" href="#511">511</a> } <strong class="jxr_keyword">catch</strong> (IOException e) {
-<a class="jxr_linenumber" name="512" href="#512">512</a> <strong class="jxr_keyword">if</strong> (retries > 0) {
-<a class="jxr_linenumber" name="513" href="#513">513</a> LOG.warn(<span class="jxr_string">"Unable to create version file at "</span> + rootdir.toString() + <span class="jxr_string">", retrying"</span>, e);
-<a class="jxr_linenumber" name="514" href="#514">514</a> fs.delete(versionFile, false);
-<a class="jxr_linenumber" name="515" href="#515">515</a> <strong class="jxr_keyword">try</strong> {
-<a class="jxr_linenumber" name="516" href="#516">516</a> <strong class="jxr_keyword">if</strong> (wait > 0) {
-<a class="jxr_linenumber" name="517" href="#517">517</a> Thread.sleep(wait);
-<a class="jxr_linenumber" name="518" href="#518">518</a> }
-<a class="jxr_linenumber" name="519" href="#519">519</a> } <strong class="jxr_keyword">catch</strong> (InterruptedException ex) {
-<a class="jxr_linenumber" name="520" href="#520">520</a> <em class="jxr_comment">// ignore</em>
-<a class="jxr_linenumber" name="521" href="#521">521</a> }
-<a class="jxr_linenumber" name="522" href="#522">522</a> retries--;
-<a class="jxr_linenumber" name="523" href="#523">523</a> } <strong class="jxr_keyword">else</strong> {
-<a class="jxr_linenumber" name="524" href="#524">524</a> <strong class="jxr_keyword">throw</strong> e;
-<a class="jxr_linenumber" name="525" href="#525">525</a> }
-<a class="jxr_linenumber" name="526" href="#526">526</a> }
-<a class="jxr_linenumber" name="527" href="#527">527</a> }
-<a class="jxr_linenumber" name="528" href="#528">528</a> }
-<a class="jxr_linenumber" name="529" href="#529">529</a>
-<a class="jxr_linenumber" name="530" href="#530">530</a> <em class="jxr_javadoccomment">/**</em>
-<a class="jxr_linenumber" name="531" href="#531">531</a> <em class="jxr_javadoccomment"> * Checks that a cluster ID file exists in the HBase root directory</em>
-<a class="jxr_linenumber" name="532" href="#532">532</a> <em class="jxr_javadoccomment"> * @param fs the root directory FileSystem</em>
-<a class="jxr_linenumber" name="533" href="#533">533</a> <em class="jxr_javadoccomment"> * @param rootdir the HBase root directory in HDFS</em>
-<a class="jxr_linenumber" name="534" href="#534">534</a> <em class="jxr_javadoccomment"> * @param wait how long to wait between retries</em>
-<a class="jxr_linenumber" name="535" href="#535">535</a> <em class="jxr_javadoccomment"> * @return <code>true</code> if the file exists, otherwise <code>false</code></em>
-<a class="jxr_linenumber" name="536" href="#536">536</a> <em class="jxr_javadoccomment"> * @throws IOException if checking the FileSystem fails</em>
-<a class="jxr_linenumber" name="537" href="#537">537</a> <em class="jxr_javadoccomment"> */</em>
-<a class="jxr_linenumber" name="538" href="#538">538</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">static</strong> <strong class="jxr_keyword">boolean</strong> checkClusterIdExists(FileSystem fs, Path rootdir,
-<a class="jxr_linenumber" name="539" href="#539">539</a> <strong class="jxr_keyword">int</strong> wait) <strong class="jxr_keyword">throws</strong> IOException {
-<a class="jxr_linenumber" name="540" href="#540">540</a> <strong class="jxr_keyword">while</strong> (<strong class="jxr_keyword">true</strong>) {
-<a class="jxr_linenumber" name="541" href="#541">541</a> <strong class="jxr_keyword">try</strong> {
-<a class="jxr_linenumber" name="542" href="#542">542</a> Path filePath = <strong class="jxr_keyword">new</strong> Path(rootdir, HConstants.CLUSTER_ID_FILE_NAME);
-<a class="jxr_linenumber" name="543" href="#543">543</a> <strong class="jxr_keyword">return</strong> fs.exists(filePath);
-<a class="jxr_linenumber" name="544" href="#544">544</a> } <strong class="jxr_keyword">catch</strong> (IOException ioe) {
-<a class="jxr_linenumber" name="545" href="#545">545</a> <strong class="jxr_keyword">if</strong> (wait > 0) {
-<a class="jxr_linenumber" name="546" href="#546">546</a> LOG.warn(<span class="jxr_string">"Unable to check cluster ID file in "</span> + rootdir.toString() +
-<a class="jxr_linenumber" name="547" href="#547">547</a> <span class="jxr_string">", retrying in "</span>+wait+<span class="jxr_string">"msec: "</span>+StringUtils.stringifyException(ioe));
-<a class="jxr_linenumber" name="548" href="#548">548</a> <strong class="jxr_keyword">try</strong> {
-<a class="jxr_linenumber" name="549" href="#549">549</a> Thread.sleep(wait);
-<a class="jxr_linenumber" name="550" href="#550">550</a> } <strong class="jxr_keyword">catch</strong> (InterruptedException ie) {
-<a class="jxr_linenumber" name="551" href="#551">551</a> Thread.interrupted();
-<a class="jxr_linenumber" name="552" href="#552">552</a> <strong class="jxr_keyword">break</strong>;
-<a class="jxr_linenumber" name="553" href="#553">553</a> }
-<a class="jxr_linenumber" name="554" href="#554">554</a> } <strong class="jxr_keyword">else</strong> {
-<a class="jxr_linenumber" name="555" href="#555">555</a> <strong class="jxr_keyword">throw</strong> ioe;
-<a class="jxr_linenumber" name="556" href="#556">556</a> }
-<a class="jxr_linenumber" name="557" href="#557">557</a> }
-<a class="jxr_linenumber" name="558" href="#558">558</a> }
-<a class="jxr_linenumber" name="559" href="#559">559</a> <strong class="jxr_keyword">return</strong> false;
-<a class="jxr_linenumber" name="560" href="#560">560</a> }
-<a class="jxr_linenumber" name="561" href="#561">561</a>
-<a class="jxr_linenumber" name="562" href="#562">562</a> <em class="jxr_javadoccomment">/**</em>
-<a class="jxr_linenumber" name="563" href="#563">563</a> <em class="jxr_javadoccomment"> * Returns the value of the unique cluster ID stored for this HBase instance.</em>
-<a class="jxr_linenumber" name="564" href="#564">564</a> <em class="jxr_javadoccomment"> * @param fs the root directory FileSystem</em>
-<a class="jxr_linenumber" name="565" href="#565">565</a> <em class="jxr_javadoccomment"> * @param rootdir the path to the HBase root directory</em>
-<a class="jxr_linenumber" name="566" href="#566">566</a> <em class="jxr_javadoccomment"> * @return the unique cluster identifier</em>
-<a class="jxr_linenumber" name="567" href="#567">567</a> <em class="jxr_javadoccomment"> * @throws IOException if reading the cluster ID file fails</em>
-<a class="jxr_linenumber" name="568" href="#568">568</a> <em class="jxr_javadoccomment"> */</em>
-<a class="jxr_linenumber" name="569" href="#569">569</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">static</strong> <a href="../../../../../org/apache/hadoop/hbase/ClusterId.html">ClusterId</a> getClusterId(FileSystem fs, Path rootdir)
-<a class="jxr_linenumber" name="570" href="#570">570</a> <strong class="jxr_keyword">throws</strong> IOException {
-<a class="jxr_linenumber" name="571" href="#571">571</a> Path idPath = <strong class="jxr_keyword">new</strong> Path(rootdir, HConstants.CLUSTER_ID_FILE_NAME);
-<a class="jxr_linenumber" name="572" href="#572">572</a> <a href="../../../../../org/apache/hadoop/hbase/ClusterId.html">ClusterId</a> clusterId = <strong class="jxr_keyword">null</strong>;
-<a class="jxr_linenumber" name="573" href="#573">573</a> FileStatus status = fs.exists(idPath)? fs.getFileStatus(idPath): <strong class="jxr_keyword">null</strong>;
-<a class="jxr_linenumber" name="574" href="#574">574</a> <strong class="jxr_keyword">if</strong> (status != <strong class="jxr_keyword">null</strong>) {
-<a class="jxr_linenumber" name="575" href="#575">575</a> <strong class="jxr_keyword">int</strong> len = Ints.checkedCast(status.getLen());
-<a class="jxr_linenumber" name="576" href="#576">576</a> byte [] content = <strong class="jxr_keyword">new</strong> byte[len];
-<a class="jxr_linenumber" name="577" href="#577">577</a> FSDataInputStream in = fs.open(idPath);
-<a class="jxr_linenumber" name="578" href="#578">578</a> <strong class="jxr_keyword">try</strong> {
-<a class="jxr_linenumber" name="579" href="#579">579</a> in.readFully(content);
-<a class="jxr_linenumber" name="580" href="#580">580</a> } <strong class="jxr_keyword">catch</strong> (EOFException eof) {
-<a class="jxr_linenumber" name="581" href="#581">581</a> LOG.warn(<span class="jxr_string">"Cluster ID file "</span> + idPath.toString() + <span class="jxr_string">" was empty"</span>);
-<a class="jxr_linenumber" name="582" href="#582">582</a> } <strong class="jxr_keyword">finally</strong>{
-<a class="jxr_linenumber" name="583" href="#583">583</a> in.close();
-<a class="jxr_linenumber" name="584" href="#584">584</a> }
-<a class="jxr_linenumber" name="585" href="#585">585</a> <strong class="jxr_keyword">try</strong> {
-<a class="jxr_linenumber" name="586" href="#586">586</a> clusterId = ClusterId.parseFrom(content);
-<a class="jxr_linenumber" name="587" href="#587">587</a> } <strong class="jxr_keyword">catch</strong> (DeserializationException e) {
-<a class="jxr_linenumber" name="588" href="#588">588</a> <strong class="jxr_keyword">throw</strong> <strong class="jxr_keyword">new</strong> IOException(<span class="jxr_string">"content="</span> + Bytes.toString(content), e);
-<a class="jxr_linenumber" name="589" href="#589">589</a> }
-<a class="jxr_linenumber" name="590" href="#590">590</a> <em class="jxr_comment">// If not pb'd, make it so.</em>
-<a class="jxr_linenumber" name="591" href="#591">591</a> <strong class="jxr_keyword">if</strong> (!ProtobufUtil.isPBMagicPrefix(content)) rewriteAsPb(fs, rootdir, idPath, clusterId);
-<a class="jxr_linenumber" name="592" href="#592">592</a> <strong class="jxr_keyword">return</strong> clusterId;
-<a class="jxr_linenumber" name="593" href="#593">593</a> } <strong class="jxr_keyword">else</strong> {
-<a class="jxr_linenumber" name="594" href="#594">594</a> LOG.warn(<span class="jxr_string">"Cluster ID file does not exist at "</span> + idPath.toString());
-<a class="jxr_linenumber" name="595" href="#595">595</a> }
-<a class="jxr_linenumber" name="596" href="#596">596</a> <strong class="jxr_keyword">return</strong> clusterId;
-<a class="jxr_linenumber" name="597" href="#597">597</a> }
-<a class="jxr_linenumber" name="598" href="#598">598</a>
-<a class="jxr_linenumber" name="599" href="#599">599</a> <em class="jxr_javadoccomment">/**</em>
-<a class="jxr_linenumber" name="600" href="#600">600</a> <em class="jxr_javadoccomment"> * @param cid</em>
-<a class="jxr_linenumber" name="601" href="#601">601</a> <em class="jxr_javadoccomment"> * @throws IOException</em>
-<a class="jxr_linenumber" name="602" href="#602">602</a> <em class="jxr_javadoccomment"> */</em>
-<a class="jxr_linenumber" name="603" href="#603">603</a> <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">static</strong> <strong class="jxr_keyword">void</strong> rewriteAsPb(<strong class="jxr_keyword">final</strong> FileSystem fs, <strong class="jxr_keyword">final</strong> Path rootdir, <strong class="jxr_keyword">final</strong> Path p,
-<a class="jxr_linenumber" name="604" href="#604">604</a> <strong class="jxr_keyword">final</strong> <a href="../../../../../org/apache/hadoop/hbase/ClusterId.html">ClusterId</a> cid)
-<a class="jxr_linenumber" name="605" href="#605">605</a> <strong class="jxr_keyword">throws</strong> IOException {
-<a class="jxr_linenumber" name="606" href="#606">606</a> <em class="jxr_comment">// Rewrite the file as pb. Move aside the old one first, write new</em>
-<a class="jxr_linenumber" name="607" href="#607">607</a> <em class="jxr_comment">// then delete the moved-aside file.</em>
-<a class="jxr_linenumber" name="608" href="#608">608</a> Path movedAsideName = <strong class="jxr_keyword">new</strong> Path(p + <span class="jxr_string">"."</span> + System.currentTimeMillis());
-<a class="jxr_linenumber" name="609" href="#609">609</a> <strong class="jxr_keyword">if</strong> (!fs.rename(p, movedAsideName)) <strong class="jxr_keyword">throw</strong> <strong class="jxr_keyword">new</strong> IOException(<span class="jxr_string">"Failed rename of "</span> + p);
-<a class="jxr_linenumber" name="610" href="#610">610</a> setClusterId(fs, rootdir, cid, 100);
-<a class="jxr_linenumber" name="611" href="#611">611</a> <strong class="jxr_keyword">if</strong> (!fs.delete(movedAsideName, false)) {
-<a class="jxr_linenumber" name="612" href="#612">612</a> <strong class="jxr_keyword">throw</strong> <strong class="jxr_keyword">new</strong> IOException(<span class="jxr_string">"Failed delete of "</span> + movedAsideName);
-<a class="jxr_linenumber" name="613" href="#613">613</a> }
-<a class="jxr_linenumber" name="614" href="#614">614</a> LOG.debug(<span class="jxr_string">"Rewrote the hbase.id file as pb"</span>);
-<a class="jxr_linenumber" name="615" href="#615">615</a> }
-<a class="jxr_linenumber" name="616" href="#616">616</a>
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