From 96c64712e655ca456a3d3b0104d6c09e5f64074b Mon Sep 17 00:00:00 2001
From: Michael Stack <stack@apache.org>
Date: Thu, 28 Jun 2007 22:29:07 +0000
Subject: [PATCH] HADOOP-1543 [base] Add HClient.tableExists M   
 src/java/org/apache/hadoop/hbase/HClient.java     (tableExists): Added M   
 CHANGES.txt M    src/java/org/apache/hadoop/hbase/package.html     Fix
 javadoc.

git-svn-id: https://svn.apache.org/repos/asf/lucene/hadoop/trunk/src/contrib/hbase@551725 13f79535-47bb-0310-9956-ffa450edef68
---
 CHANGES.txt                                   |  2 +-
 src/java/org/apache/hadoop/hbase/HClient.java | 17 +++++++++++++++++
 src/java/org/apache/hadoop/hbase/package.html |  2 +-
 3 files changed, 19 insertions(+), 2 deletions(-)

diff --git a/CHANGES.txt b/CHANGES.txt
index d876d66dd85..99ce05964e5 100644
--- a/CHANGES.txt
+++ b/CHANGES.txt
@@ -42,4 +42,4 @@ Trunk (unreleased changes)
  24. HADOOP-1534. [hbase] Memcache scanner fails if start key not present
  25. HADOOP-1537. Catch exceptions in testCleanRegionServerExit so we can see
      what is failing.
-
+ 26. HADOOP-1543 [hbase] Add HClient.tableExists
diff --git a/src/java/org/apache/hadoop/hbase/HClient.java b/src/java/org/apache/hadoop/hbase/HClient.java
index eba0fd9f926..c683bab9b04 100644
--- a/src/java/org/apache/hadoop/hbase/HClient.java
+++ b/src/java/org/apache/hadoop/hbase/HClient.java
@@ -125,6 +125,23 @@ public class HClient implements HConstants {
     this.currentServer = null;
     this.rand = new Random();
   }
+
+  /**
+   * @param tableName Table to check.
+   * @return True if table exists already.
+   * @throws IOException
+   */
+  public boolean tableExists(final Text tableName) throws IOException {
+    HTableDescriptor [] tables = listTables();
+    boolean result = false;
+    for (int i = 0; i < tables.length; i++) {
+      if (tables[i].getName().equals(tableName)) {
+        result = true;
+        break;
+      }
+    }
+    return result;
+  }
   
   protected void handleRemoteException(RemoteException e) throws IOException {
     String msg = e.getMessage();
diff --git a/src/java/org/apache/hadoop/hbase/package.html b/src/java/org/apache/hadoop/hbase/package.html
index 9d1d838d4d4..77ab48ab4f7 100644
--- a/src/java/org/apache/hadoop/hbase/package.html
+++ b/src/java/org/apache/hadoop/hbase/package.html
@@ -18,7 +18,7 @@ Set <code>JAVA_HOME</code> to the root of your Java installation</li>
 <p>First, you need a working instance of Hadoop.  Download a recent release from
 <a href="http://www.apache.org/dyn/closer.cgi/lucene/hadoop/">Hadoop downloads</a>. 
 Unpack the release and connect to its top-level directory.  Let this be
-<code>${HADOOP_HOME}.  Edit the file <code>${HADOOP_HOME}/conf/hadoop-env.sh</code>
+<code>${HADOOP_HOME}</code>.  Edit the file <code>${HADOOP_HOME}/conf/hadoop-env.sh</code>
 to define at least <code>JAVA_HOME</code>.  Also, add site-particular
 customizations to the file <code>${HADOOP_HOME}/conf/hadoop-site.xml</code>.
 Try the following command: <pre>bin/hadoop