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From hyun...@apache.org
Subject tajo git commit: TAJO-1757: Add examples for TajoClient v2.
Date Wed, 19 Aug 2015 04:11:06 GMT
Repository: tajo
Updated Branches:
  refs/heads/branch-0.11.0 38ac39e2e -> e31256249


TAJO-1757: Add examples for TajoClient v2.

Closes #689


Project: http://git-wip-us.apache.org/repos/asf/tajo/repo
Commit: http://git-wip-us.apache.org/repos/asf/tajo/commit/e3125624
Tree: http://git-wip-us.apache.org/repos/asf/tajo/tree/e3125624
Diff: http://git-wip-us.apache.org/repos/asf/tajo/diff/e3125624

Branch: refs/heads/branch-0.11.0
Commit: e31256249afc674281c0dfa7bdbb8571e040b46d
Parents: 38ac39e
Author: Hyunsik Choi <hyunsik@apache.org>
Authored: Wed Aug 19 13:03:01 2015 +0900
Committer: Hyunsik Choi <hyunsik@apache.org>
Committed: Wed Aug 19 13:10:51 2015 +0900

----------------------------------------------------------------------
 CHANGES                                         |   2 +
 pom.xml                                         |   1 +
 tajo-client-example/pom.xml                     | 217 +++++++++++++++++++
 .../v2/example/TajoClientAsyncExample.java      |  70 ++++++
 .../client/v2/example/TajoClientExample.java    |  65 ++++++
 .../tajo/client/v2/LegacyClientDelegate.java    |   4 +-
 .../org/apache/tajo/client/v2/QueryFuture.java  |   4 +-
 .../org/apache/tajo/client/v2/TajoClient.java   |  12 +-
 .../apache/tajo/exception/ErrorMessages.java    |  15 +-
 .../apache/tajo/client/v2/TestTajoClientV2.java |   4 +-
 tajo-dist/pom.xml                               |   1 +
 tajo-project/pom.xml                            |   5 +
 12 files changed, 390 insertions(+), 10 deletions(-)
----------------------------------------------------------------------


http://git-wip-us.apache.org/repos/asf/tajo/blob/e3125624/CHANGES
----------------------------------------------------------------------
diff --git a/CHANGES b/CHANGES
index c31debf..5a930c0 100644
--- a/CHANGES
+++ b/CHANGES
@@ -32,6 +32,8 @@ Release 0.11.0 - unreleased
 
   IMPROVEMENT
 
+    TAJO-1757: Add examples for TajoClient v2. (hyunsik)
+
     TAJO-1761: Separate an integration unit test kit into an independent 
     module. (hyunsik)
 

http://git-wip-us.apache.org/repos/asf/tajo/blob/e3125624/pom.xml
----------------------------------------------------------------------
diff --git a/pom.xml b/pom.xml
index 69eaebf..ae7508b 100644
--- a/pom.xml
+++ b/pom.xml
@@ -87,6 +87,7 @@
     <module>tajo-rpc</module>
     <module>tajo-catalog</module>
     <module>tajo-client</module>
+    <module>tajo-client-example</module>
     <module>tajo-jdbc</module>
     <module>tajo-storage</module>
     <module>tajo-pullserver</module>

http://git-wip-us.apache.org/repos/asf/tajo/blob/e3125624/tajo-client-example/pom.xml
----------------------------------------------------------------------
diff --git a/tajo-client-example/pom.xml b/tajo-client-example/pom.xml
new file mode 100644
index 0000000..e81311d
--- /dev/null
+++ b/tajo-client-example/pom.xml
@@ -0,0 +1,217 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+  -->
+
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+  <modelVersion>4.0.0</modelVersion>
+  <parent>
+    <artifactId>tajo-project</artifactId>
+    <groupId>org.apache.tajo</groupId>
+    <version>0.12.0-SNAPSHOT</version>
+    <relativePath>../tajo-project</relativePath>
+  </parent>
+  <artifactId>tajo-client-example</artifactId>
+  <packaging>jar</packaging>
+  <name>Tajo Client Example</name>
+  <properties>
+    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+    <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
+    <metrics.version>3.0.1</metrics.version>
+  </properties>
+
+  <repositories>
+    <repository>
+      <id>repository.jboss.org</id>
+      <url>https://repository.jboss.org/nexus/content/repositories/releases/
+      </url>
+      <snapshots>
+        <enabled>false</enabled>
+      </snapshots>
+    </repository>
+  </repositories>
+
+  <build>
+    <plugins>
+      <plugin>
+        <groupId>org.apache.maven.plugins</groupId>
+        <artifactId>maven-compiler-plugin</artifactId>
+      </plugin>
+      <plugin>
+        <groupId>org.apache.rat</groupId>
+        <artifactId>apache-rat-plugin</artifactId>
+        <executions>
+          <execution>
+            <phase>verify</phase>
+            <goals>
+              <goal>check</goal>
+            </goals>
+          </execution>
+        </executions>
+      </plugin>
+      <plugin>
+        <groupId>org.apache.maven.plugins</groupId>
+        <artifactId>maven-surefire-plugin</artifactId>
+        <configuration>
+          <systemProperties>
+            <tajo.test>TRUE</tajo.test>
+          </systemProperties>
+          <argLine>-Xms512m -Xmx1024m -Dfile.encoding=UTF-8</argLine>
+        </configuration>
+      </plugin>
+      <plugin>
+        <groupId>org.apache.maven.plugins</groupId>
+        <artifactId>maven-dependency-plugin</artifactId>
+        <executions>
+          <execution>
+            <id>copy-dependencies</id>
+            <phase>package</phase>
+            <goals>
+              <goal>copy-dependencies</goal>
+            </goals>
+            <configuration>
+              <includeScope>runtime</includeScope>
+              <outputDirectory>${project.build.directory}/lib</outputDirectory>
+              <overWriteReleases>false</overWriteReleases>
+              <overWriteSnapshots>false</overWriteSnapshots>
+              <overWriteIfNewer>true</overWriteIfNewer>
+            </configuration>
+          </execution>
+        </executions>
+      </plugin>
+      <plugin>
+        <groupId>org.apache.maven.plugins</groupId>
+        <artifactId>maven-pmd-plugin</artifactId>
+        <version>2.7.1</version>
+      </plugin>
+    </plugins>
+  </build>
+
+
+  <dependencies>
+    <dependency>
+      <groupId>org.apache.tajo</groupId>
+      <artifactId>tajo-client</artifactId>
+    </dependency>
+  </dependencies>
+
+  <profiles>
+    <profile>
+      <id>docs</id>
+      <activation>
+        <activeByDefault>false</activeByDefault>
+      </activation>
+      <build>
+        <plugins>
+          <plugin>
+            <groupId>org.apache.maven.plugins</groupId>
+            <artifactId>maven-javadoc-plugin</artifactId>
+            <executions>
+              <execution>
+                <!-- build javadoc jars per jar for publishing to maven -->
+                <id>module-javadocs</id>
+                <phase>package</phase>
+                <goals>
+                  <goal>jar</goal>
+                </goals>
+                <configuration>
+                  <destDir>${project.build.directory}</destDir>
+                </configuration>
+              </execution>
+            </executions>
+          </plugin>
+        </plugins>
+      </build>
+    </profile>
+    <profile>
+      <id>dist</id>
+      <activation>
+        <activeByDefault>false</activeByDefault>
+        <property>
+          <name>tar|rpm|deb</name>
+        </property>
+      </activation>
+      <build>
+        <plugins>
+          <plugin>
+            <groupId>org.apache.maven.plugins</groupId>
+            <artifactId>maven-antrun-plugin</artifactId>
+            <executions>
+              <execution>
+                <id>dist</id>
+                <phase>package</phase>
+                <goals>
+                  <goal>run</goal>
+                </goals>
+                <configuration>
+                  <target>
+                    <echo file="${project.build.directory}/dist-layout-stitching.sh">
+                      run() {
+                      echo "\$ ${@}"
+                      "${@}"
+                      res=$?
+                      if [ $res != 0 ]; then
+                      echo
+                      echo "Failed!"
+                      echo
+                      exit $res
+                      fi
+                      }
+
+                      ROOT=`cd ${basedir}/..;pwd`
+                      echo
+                      echo "Current directory `pwd`"
+                      echo
+                      run rm -rf ${project.artifactId}-${project.version}
+                      run mkdir ${project.artifactId}-${project.version}
+                      run cd ${project.artifactId}-${project.version}
+                      run cp -r ${basedir}/target/${project.artifactId}-${project.version}*.jar
.
+                      echo
+                      echo "Tajo Client dist layout available at: ${project.build.directory}/${project.artifactId}-${project.version}"
+                      echo
+                    </echo>
+                    <exec executable="sh" dir="${project.build.directory}" failonerror="true">
+                      <arg line="./dist-layout-stitching.sh" />
+                    </exec>
+                  </target>
+                </configuration>
+              </execution>
+            </executions>
+          </plugin>
+        </plugins>
+      </build>
+    </profile>
+  </profiles>
+
+  <reporting>
+    <plugins>
+      <plugin>
+        <groupId>org.apache.maven.plugins</groupId>
+        <artifactId>maven-project-info-reports-plugin</artifactId>
+        <version>2.4</version>
+        <configuration>
+          <dependencyLocationsEnabled>false</dependencyLocationsEnabled>
+        </configuration>
+      </plugin>
+      <plugin>
+        <groupId>org.apache.maven.plugins</groupId>
+        <artifactId>maven-surefire-report-plugin</artifactId>
+      </plugin>
+    </plugins>
+  </reporting>
+</project>
+

http://git-wip-us.apache.org/repos/asf/tajo/blob/e3125624/tajo-client-example/src/main/java/org/apache/tajo/client/v2/example/TajoClientAsyncExample.java
----------------------------------------------------------------------
diff --git a/tajo-client-example/src/main/java/org/apache/tajo/client/v2/example/TajoClientAsyncExample.java
b/tajo-client-example/src/main/java/org/apache/tajo/client/v2/example/TajoClientAsyncExample.java
new file mode 100644
index 0000000..e2acbc5
--- /dev/null
+++ b/tajo-client-example/src/main/java/org/apache/tajo/client/v2/example/TajoClientAsyncExample.java
@@ -0,0 +1,70 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.apache.tajo.client.v2.example;
+
+import org.apache.tajo.client.ResultSetUtil;
+import org.apache.tajo.client.v2.QueryFuture;
+import org.apache.tajo.client.v2.TajoClient;
+import org.apache.tajo.client.v2.exception.ClientUnableToConnectException;
+import org.apache.tajo.exception.TajoException;
+
+import java.util.concurrent.ExecutionException;
+
+public class TajoClientAsyncExample {
+
+  public static void run(String hostname, int port, String sql) throws ClientUnableToConnectException
{
+
+    try (TajoClient client = new TajoClient(hostname, port)) {
+
+      try (QueryFuture future = client.executeQueryAsync(sql)) {
+
+        while (!future.isDone()) { // isDone will be true if query state becomes success,
failed, or killed.
+          System.out.println("progress: " + future.progress());
+        }
+
+        if (future.isSuccessful()) {
+          System.out.println(ResultSetUtil.prettyFormat(future.get()));
+        }
+
+      } catch (TajoException e) {
+        // executeQueryAsync() directly throws a TajoException instance if a query syntax
is wrong.
+        e.printStackTrace();
+      } catch (ExecutionException e) {
+        // e.getCause() contains an TajoException caused by a running query.
+        System.err.println(e.getCause().getMessage());
+      } catch (Throwable t) {
+        System.err.println(t.getMessage());
+      }
+    }
+  }
+
+  public static void main(String[] args) throws ClientUnableToConnectException {
+    if (args.length < 3) {
+      System.err.println("usage: java -cp [classpath] TajoClientAsyncExample [hostname] [port]
sql");
+      System.exit(-1);
+    }
+
+    StringBuilder sqlBuilder = new StringBuilder();
+    for (int i = 2; i < args.length; i++) {
+      sqlBuilder.append(args[i]).append(" ");
+    }
+
+    run(args[0], Integer.parseInt(args[1]), sqlBuilder.toString());
+  }
+}

http://git-wip-us.apache.org/repos/asf/tajo/blob/e3125624/tajo-client-example/src/main/java/org/apache/tajo/client/v2/example/TajoClientExample.java
----------------------------------------------------------------------
diff --git a/tajo-client-example/src/main/java/org/apache/tajo/client/v2/example/TajoClientExample.java
b/tajo-client-example/src/main/java/org/apache/tajo/client/v2/example/TajoClientExample.java
new file mode 100644
index 0000000..8a5222e
--- /dev/null
+++ b/tajo-client-example/src/main/java/org/apache/tajo/client/v2/example/TajoClientExample.java
@@ -0,0 +1,65 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.apache.tajo.client.v2.example;
+
+import org.apache.tajo.client.ResultSetUtil;
+import org.apache.tajo.client.v2.TajoClient;
+import org.apache.tajo.client.v2.exception.ClientUnableToConnectException;
+import org.apache.tajo.exception.QueryFailedException;
+import org.apache.tajo.exception.QueryKilledException;
+import org.apache.tajo.exception.TajoException;
+
+import java.sql.ResultSet;
+import java.sql.SQLException;
+
+public class TajoClientExample {
+
+  public static void run(String hostname, int port, String sql) throws ClientUnableToConnectException
{
+
+    try (TajoClient client = new TajoClient(hostname, port)) {
+
+      try {
+        ResultSet result = client.executeQuery(sql);
+        System.out.println(ResultSetUtil.prettyFormat(result));
+
+      } catch (QueryFailedException e) {
+        System.err.println("query is failed.");
+      } catch (QueryKilledException e) {
+        System.err.println("query is killed.");
+      } catch (SQLException | TajoException e) {
+        e.printStackTrace();
+      }
+
+    }
+  }
+
+  public static void main(String[] args) throws ClientUnableToConnectException {
+    if (args.length < 3) {
+      System.err.println("usage: java -cp [classpath] TajoClientExample [hostname] [port]
sql");
+      System.exit(-1);
+    }
+
+    StringBuilder sqlBuilder = new StringBuilder();
+    for (int i = 2; i < args.length; i++) {
+      sqlBuilder.append(args[i]).append(" ");
+    }
+
+    run(args[0], Integer.parseInt(args[1]), sqlBuilder.toString());
+  }
+}

http://git-wip-us.apache.org/repos/asf/tajo/blob/e3125624/tajo-client/src/main/java/org/apache/tajo/client/v2/LegacyClientDelegate.java
----------------------------------------------------------------------
diff --git a/tajo-client/src/main/java/org/apache/tajo/client/v2/LegacyClientDelegate.java
b/tajo-client/src/main/java/org/apache/tajo/client/v2/LegacyClientDelegate.java
index 697c1ac..12f8812 100644
--- a/tajo-client/src/main/java/org/apache/tajo/client/v2/LegacyClientDelegate.java
+++ b/tajo-client/src/main/java/org/apache/tajo/client/v2/LegacyClientDelegate.java
@@ -192,7 +192,7 @@ public class LegacyClientDelegate extends SessionConnection implements
ClientDel
     }
 
     @Override
-    public void release() {
+    public void close() {
       queryClient.closeQuery(id);
     }
 
@@ -332,7 +332,7 @@ public class LegacyClientDelegate extends SessionConnection implements
ClientDel
     }
 
     @Override
-    public void release() {
+    public void close() {
       queryClient.closeQuery(queryId);
     }
 

http://git-wip-us.apache.org/repos/asf/tajo/blob/e3125624/tajo-client/src/main/java/org/apache/tajo/client/v2/QueryFuture.java
----------------------------------------------------------------------
diff --git a/tajo-client/src/main/java/org/apache/tajo/client/v2/QueryFuture.java b/tajo-client/src/main/java/org/apache/tajo/client/v2/QueryFuture.java
index f1604cd..d916e6d 100644
--- a/tajo-client/src/main/java/org/apache/tajo/client/v2/QueryFuture.java
+++ b/tajo-client/src/main/java/org/apache/tajo/client/v2/QueryFuture.java
@@ -26,7 +26,7 @@ import java.util.concurrent.Future;
 /**
  *
  */
-public interface QueryFuture extends Future<ResultSet> {
+public interface QueryFuture extends Future<ResultSet>, AutoCloseable {
   /**
    * Get a query id
    *
@@ -122,7 +122,7 @@ public interface QueryFuture extends Future<ResultSet> {
   /**
    * Release a query future. It will be automatically released after the session invalidation.
    */
-  void release();
+  void close();
 
   /**
    * Add a listener which will be executed after this query is completed, error, failed or
killed.

http://git-wip-us.apache.org/repos/asf/tajo/blob/e3125624/tajo-client/src/main/java/org/apache/tajo/client/v2/TajoClient.java
----------------------------------------------------------------------
diff --git a/tajo-client/src/main/java/org/apache/tajo/client/v2/TajoClient.java b/tajo-client/src/main/java/org/apache/tajo/client/v2/TajoClient.java
index f9401cb..2b4a150 100644
--- a/tajo-client/src/main/java/org/apache/tajo/client/v2/TajoClient.java
+++ b/tajo-client/src/main/java/org/apache/tajo/client/v2/TajoClient.java
@@ -18,6 +18,8 @@
 
 package org.apache.tajo.client.v2;
 
+import org.apache.commons.logging.Log;
+import org.apache.commons.logging.LogFactory;
 import org.apache.tajo.exception.QueryFailedException;
 import org.apache.tajo.exception.UndefinedDatabaseException;
 import org.apache.tajo.client.v2.exception.ClientUnableToConnectException;
@@ -29,6 +31,8 @@ import java.sql.ResultSet;
 import java.util.Map;
 
 public class TajoClient implements Closeable {
+  private static Log LOG = LogFactory.getLog(TajoClient.class);
+
   /**
    * default client port number
    */
@@ -130,8 +134,12 @@ public class TajoClient implements Closeable {
     return delegate.executeSQLAsync(sql);
   }
 
-  public void close() throws IOException {
-    delegate.close();
+  public void close() {
+    try {
+      delegate.close();
+    } catch (IOException e) {
+      LOG.warn(e);
+    }
   }
 
   /**

http://git-wip-us.apache.org/repos/asf/tajo/blob/e3125624/tajo-common/src/main/java/org/apache/tajo/exception/ErrorMessages.java
----------------------------------------------------------------------
diff --git a/tajo-common/src/main/java/org/apache/tajo/exception/ErrorMessages.java b/tajo-common/src/main/java/org/apache/tajo/exception/ErrorMessages.java
index ad5776c..e617efa 100644
--- a/tajo-common/src/main/java/org/apache/tajo/exception/ErrorMessages.java
+++ b/tajo-common/src/main/java/org/apache/tajo/exception/ErrorMessages.java
@@ -21,7 +21,6 @@ package org.apache.tajo.exception;
 import com.google.common.collect.Maps;
 import org.apache.tajo.error.Errors.ResultCode;
 import org.apache.tajo.util.Pair;
-import org.apache.tajo.util.StringUtils;
 
 import java.util.Map;
 
@@ -135,6 +134,18 @@ public class ErrorMessages {
 
   }
 
+  public static String concat(String[] args) {
+    StringBuilder sb = new StringBuilder();
+    boolean first = true;
+    for (String s : args) {
+      if (!first) {
+        sb.append(",");
+      }
+      sb.append(s);
+    }
+    return sb.toString();
+  }
+
   public static String getMessage(ResultCode code, String...args) {
     if (!MESSAGES.containsKey(code)) {
       throw new TajoInternalError("no error message for " + code);
@@ -151,7 +162,7 @@ public class ErrorMessages {
         }
 
       } else {
-        throw new TajoInternalError("Argument mismatch: code=" + code.name() + ", args="
+ StringUtils.join(args));
+        throw new TajoInternalError("Argument mismatch: code=" + code.name() + ", args="
+ concat(args));
       }
     }
   }

http://git-wip-us.apache.org/repos/asf/tajo/blob/e3125624/tajo-core-tests/src/test/java/org/apache/tajo/client/v2/TestTajoClientV2.java
----------------------------------------------------------------------
diff --git a/tajo-core-tests/src/test/java/org/apache/tajo/client/v2/TestTajoClientV2.java
b/tajo-core-tests/src/test/java/org/apache/tajo/client/v2/TestTajoClientV2.java
index e1fca63..6ba4854 100644
--- a/tajo-core-tests/src/test/java/org/apache/tajo/client/v2/TestTajoClientV2.java
+++ b/tajo-core-tests/src/test/java/org/apache/tajo/client/v2/TestTajoClientV2.java
@@ -219,7 +219,7 @@ public class TestTajoClientV2 extends QueryTestCaseBase {
     } catch (ExecutionException e) {
       throw e.getCause();
     } finally {
-      future.release();
+      future.close();
     }
   }
 
@@ -268,7 +268,7 @@ public class TestTajoClientV2 extends QueryTestCaseBase {
     } catch (ExecutionException e) {
       throw e.getCause();
     } finally {
-      future.release();
+      future.close();
     }
   }
 }

http://git-wip-us.apache.org/repos/asf/tajo/blob/e3125624/tajo-dist/pom.xml
----------------------------------------------------------------------
diff --git a/tajo-dist/pom.xml b/tajo-dist/pom.xml
index 3b8f947..ed71c31 100644
--- a/tajo-dist/pom.xml
+++ b/tajo-dist/pom.xml
@@ -138,6 +138,7 @@
                       run cp -r $ROOT/tajo-algebra/target/tajo-algebra-${project.version}/*
.
                       run cp -r $ROOT/tajo-plan/target/tajo-plan-${project.version}/* .
                       run cp -r $ROOT/tajo-client/target/tajo-client-${project.version}/*
.
+                      run cp -r $ROOT/tajo-client-example/target/tajo-client-example-${project.version}/*
.
                       run cp -r $ROOT/tajo-cli/target/tajo-cli-${project.version}/* .
                       run cp -r $ROOT/tajo-catalog/target/tajo-catalog-${project.version}/*
.
                       run cp -r $ROOT/tajo-storage/target/tajo-storage-${project.version}/*
.

http://git-wip-us.apache.org/repos/asf/tajo/blob/e3125624/tajo-project/pom.xml
----------------------------------------------------------------------
diff --git a/tajo-project/pom.xml b/tajo-project/pom.xml
index b6fb2bf..c27d160 100644
--- a/tajo-project/pom.xml
+++ b/tajo-project/pom.xml
@@ -791,6 +791,11 @@
       </dependency>
       <dependency>
         <groupId>org.apache.tajo</groupId>
+        <artifactId>tajo-client-example</artifactId>
+        <version>${tajo.version}</version>
+      </dependency>
+      <dependency>
+        <groupId>org.apache.tajo</groupId>
         <artifactId>tajo-cli</artifactId>
         <version>${tajo.version}</version>
       </dependency>


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