/**
* 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.hadoop.hive.ql.hooks;
import java.io.Serializable;
import java.util.List;
import junit.framework.Assert;
import org.apache.hadoop.hive.ql.HiveDriverRunHook;
import org.apache.hadoop.hive.ql.HiveDriverRunHookContext;
import org.apache.hadoop.hive.ql.exec.Task;
import org.apache.hadoop.hive.ql.hooks.HookContext.HookType;
import org.apache.hadoop.hive.ql.parse.ASTNode;
import org.apache.hadoop.hive.ql.parse.AbstractSemanticAnalyzerHook;
import org.apache.hadoop.hive.ql.parse.HiveSemanticAnalyzerHookContext;
import org.apache.hadoop.hive.ql.parse.SemanticException;
import org.apache.hadoop.hive.ql.session.SessionState;
import org.apache.hadoop.hive.ql.session.SessionState.LogHelper;
/**
* VerifyHooksRunInOrder.
*
* Has to subclasses RunFirst and RunSecond which can be run as either pre or post hooks.
* Verifies that RunFirst is executed before RunSecond as the same type of hook. I.e. if they are
* run as both Pre and Post hooks, RunSecond checks that RunFirst was run as a Pre or Post hook
* respectively.
*
* When running this, be sure to specify RunFirst before RunSecond in the configuration variable.
*/
public class VerifyHooksRunInOrder {
private static boolean preHookRunFirstRan = false;
private static boolean postHookRunFirstRan = false;
private static boolean staticAnalysisPreHookFirstRan = false;
private static boolean staticAnalysisPostHookFirstRan = false;
private static boolean driverRunPreHookFirstRan = false;
private static boolean driverRunPostHookFirstRan = false;
public static class RunFirst implements ExecuteWithHookContext {
public void run(HookContext hookContext) {
LogHelper console = SessionState.getConsole();
if (console == null) {
return;
}
// This is simply to verify that the hooks were in fact run
console.printError("Running RunFirst for " + hookContext.getHookType());
if (hookContext.getHookType() == HookType.PRE_EXEC_HOOK) {
preHookRunFirstRan = true;
} else {
postHookRunFirstRan = true;
}
}
}
public static class RunSecond implements ExecuteWithHookContext {
public void run(HookContext hookContext) throws Exception {
LogHelper console = SessionState.getConsole();
if (console == null) {
return;
}
// This is simply to verify that the hooks were in fact run
console.printError("Running RunSecond for " + hookContext.getHookType());
if (hookContext.getHookType() == HookType.PRE_EXEC_HOOK) {
Assert.assertTrue("Pre hooks did not run in the order specified.", preHookRunFirstRan);
} else {
Assert.assertTrue("Post hooks did not run in the order specified.", postHookRunFirstRan);
}
}
}
public static class RunFirstSemanticAnalysisHook extends AbstractSemanticAnalyzerHook {
@Override
public ASTNode preAnalyze(HiveSemanticAnalyzerHookContext context,ASTNode ast)
throws SemanticException {
LogHelper console = SessionState.getConsole();
if (console == null) {
return ast;
}
// This is simply to verify that the hooks were in fact run
console.printError("Running RunFirst for Pre Analysis Hook");
staticAnalysisPreHookFirstRan = true;
return ast;
}
@Override
public void postAnalyze(HiveSemanticAnalyzerHookContext context,
List<Task<? extends Serializable>> rootTasks) throws SemanticException {
LogHelper console = SessionState.getConsole();
if (console == null) {
return;
}
// This is simply to verify that the hooks were in fact run
console.printError("Running RunFirst for Post Analysis Hook");
staticAnalysisPostHookFirstRan = true;
}
}
public static class RunSecondSemanticAnalysisHook extends AbstractSemanticAnalyzerHook {
@Override
public ASTNode preAnalyze(HiveSemanticAnalyzerHookContext context,ASTNode ast)
throws SemanticException {
LogHelper console = SessionState.getConsole();
if (console == null) {
return ast;
}
// This is simply to verify that the hooks were in fact run
console.printError("Running RunSecond for Pre Analysis Hook");
Assert.assertTrue("Pre Analysis Hooks did not run in the order specified.",
staticAnalysisPreHookFirstRan);
return ast;
}
@Override
public void postAnalyze(HiveSemanticAnalyzerHookContext context,
List<Task<? extends Serializable>> rootTasks) throws SemanticException {
LogHelper console = SessionState.getConsole();
if (console == null) {
return;
}
// This is simply to verify that the hooks were in fact run
console.printError("Running RunSecond for Post Analysis Hook");
Assert.assertTrue("Post Analysis Hooks did not run in the order specified.",
staticAnalysisPostHookFirstRan);
}
}
public static class RunFirstDriverRunHook implements HiveDriverRunHook {
@Override
public void preDriverRun(HiveDriverRunHookContext hookContext) throws Exception {
LogHelper console = SessionState.getConsole();
if (console == null) {
return;
}
// This is simply to verify that the hooks were in fact run
console.printError("Running RunFirst for Pre Driver Run Hook");
driverRunPreHookFirstRan = true;
}
@Override
public void postDriverRun(HiveDriverRunHookContext hookContext) throws Exception {
LogHelper console = SessionState.getConsole();
if (console == null) {
return;
}
// This is simply to verify that the hooks were in fact run
console.printError("Running RunFirst for Post Driver Run Hook");
driverRunPostHookFirstRan = true;
}
}
public static class RunSecondDriverRunHook implements HiveDriverRunHook {
@Override
public void preDriverRun(HiveDriverRunHookContext hookContext) throws Exception {
LogHelper console = SessionState.getConsole();
if (console == null) {
return;
}
// This is simply to verify that the hooks were in fact run
console.printError("Running RunSecond for Pre Driver Run Hook");
Assert.assertTrue("Driver Run Hooks did not run in the order specified.",
driverRunPreHookFirstRan);
}
@Override
public void postDriverRun(HiveDriverRunHookContext hookContext) throws Exception {
LogHelper console = SessionState.getConsole();
if (console == null) {
return;
}
// This is simply to verify that the hooks were in fact run
console.printError("Running RunSecond for Post Driver Run Hook");
Assert.assertTrue("Driver Run Hooks did not run in the order specified.",
driverRunPostHookFirstRan);
}
}
}