[02/45] tajo git commit: TAJO-1143: TajoMaster, TajoWorker, and TajoClient should have diagnosis phase at startup

[ji...@apache.org]

http://git-wip-us.apache.org/repos/asf/tajo/blob/a0d67bb6/tajo-core/src/test/java/org/apache/tajo/master/rule/TestMasterRules.java
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diff --git a/tajo-core/src/test/java/org/apache/tajo/master/rule/TestMasterRules.java b/tajo-core/src/test/java/org/apache/tajo/master/rule/TestMasterRules.java
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+/**
+ * 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.master.rule;
+
+import static org.junit.Assert.*;
+import static org.hamcrest.CoreMatchers.*;
+
+import org.apache.hadoop.fs.FileSystem;
+import org.apache.hadoop.fs.Path;
+import org.apache.hadoop.fs.permission.FsPermission;
+import org.apache.hadoop.yarn.conf.YarnConfiguration;
+import org.apache.tajo.TajoConstants;
+import org.apache.tajo.conf.TajoConf;
+import org.apache.tajo.conf.TajoConf.ConfVars;
+import org.apache.tajo.rule.EvaluationContext;
+import org.apache.tajo.rule.EvaluationFailedException;
+import org.apache.tajo.rule.EvaluationResult;
+import org.apache.tajo.rule.EvaluationResult.EvaluationResultCode;
+import org.apache.tajo.rule.SelfDiagnosisRuleEngine;
+import org.apache.tajo.rule.SelfDiagnosisRuleSession;
+import org.apache.tajo.rule.base.TajoConfValidationRule;
+import org.apache.tajo.util.CommonTestingUtil;
+import org.junit.AfterClass;
+import org.junit.BeforeClass;
+import org.junit.Test;
+
+public class TestMasterRules {
+  
+  private static Path rootFilePath;
+  
+  @BeforeClass
+  public static void setUpClass() throws Exception {
+    rootFilePath = CommonTestingUtil.getTestDir();
+  }
+  
+  @AfterClass
+  public static void tearDownClass() throws Exception {
+    CommonTestingUtil.cleanupTestDir(rootFilePath.toUri().getPath());
+  }
+
+  @Test
+  public void testTajoConfValidationRule() throws Exception {
+    TajoConf tajoConf = new TajoConf(new YarnConfiguration());
+    
+    EvaluationContext context = new EvaluationContext();
+    context.addParameter(TajoConf.class.getName(), tajoConf);
+    
+    TajoConfValidationRule validationRule = new TajoConfValidationRule();
+    EvaluationResult result = validationRule.evaluate(context);
+    
+    assertThat(result, is(notNullValue()));
+    assertThat(result.getReturnCode(), is(EvaluationResultCode.OK));
+  }
+  
+  @Test(expected=EvaluationFailedException.class)
+  public void testTajoConfValidationRuleWithException() throws Exception {
+    TajoConf tajoConf = new TajoConf(new YarnConfiguration());
+    SelfDiagnosisRuleEngine ruleEngine = SelfDiagnosisRuleEngine.getInstance();
+    SelfDiagnosisRuleSession ruleSession = ruleEngine.newRuleSession();
+    
+    tajoConf.setVar(TajoConf.ConfVars.ROOT_DIR, "invalid path.");
+    
+    EvaluationContext context = new EvaluationContext();
+    context.addParameter(TajoConf.class.getName(), tajoConf);
+    
+    ruleSession.withRuleNames("TajoConfValidationRule").fireRules(context);
+    
+    fail("EvaluationFailedException exception is expected, but it does not happen.");
+  }
+  
+  protected void createTajoDirectories(TajoConf tajoConf) throws Exception {
+    Path tajoRootDir = new Path(rootFilePath, "tajo-root");
+    FileSystem rootFs = tajoRootDir.getFileSystem(tajoConf);
+    FsPermission defaultPermission = FsPermission.createImmutable((short)0700);
+    
+    if (!rootFs.exists(tajoRootDir)) {
+      rootFs.mkdirs(tajoRootDir, new FsPermission(defaultPermission));
+    }
+    
+    tajoConf.setVar(ConfVars.ROOT_DIR, tajoRootDir.toUri().toString());
+    
+    Path tajoSystemDir = new Path(tajoRootDir, TajoConstants.SYSTEM_DIR_NAME);
+    if (!rootFs.exists(tajoSystemDir)) {
+      rootFs.mkdirs(tajoSystemDir, new FsPermission(defaultPermission));
+    }
+    
+    Path tajoSystemResourceDir = new Path(tajoSystemDir, TajoConstants.SYSTEM_RESOURCE_DIR_NAME);
+    if (!rootFs.exists(tajoSystemResourceDir)) {
+      rootFs.mkdirs(tajoSystemResourceDir, new FsPermission(defaultPermission));
+    }
+    
+    Path tajoWarehouseDir = new Path(tajoRootDir, TajoConstants.WAREHOUSE_DIR_NAME);
+    if (!rootFs.exists(tajoWarehouseDir)) {
+      rootFs.mkdirs(tajoWarehouseDir, new FsPermission(defaultPermission));
+    }
+    
+    Path tajoStagingDir = new Path(tajoRootDir, "staging");
+    if (!rootFs.exists(tajoStagingDir)) {
+      rootFs.mkdirs(tajoStagingDir, new FsPermission(defaultPermission));
+    }
+    tajoConf.setVar(ConfVars.STAGING_ROOT_DIR, tajoStagingDir.toUri().toString());
+  }
+  
+  @Test
+  public void testFileSystemRule() throws Exception {
+    TajoConf tajoConf = new TajoConf(new YarnConfiguration());
+    
+    createTajoDirectories(tajoConf);
+    
+    EvaluationContext context = new EvaluationContext();
+    context.addParameter(TajoConf.class.getName(), tajoConf);
+    
+    FileSystemRule fsRule = new FileSystemRule();
+    EvaluationResult result = fsRule.evaluate(context);
+    
+    assertThat(result, is(notNullValue()));
+    assertThat(result.getReturnCode(), is(EvaluationResultCode.OK));
+  }
+  
+  @Test
+  public void testFileSystemRuleWithError() throws Exception {
+    TajoConf tajoConf = new TajoConf(new YarnConfiguration());
+    
+    createTajoDirectories(tajoConf);
+    Path systemResourceDir = TajoConf.getSystemResourceDir(tajoConf);
+    FileSystem defaultFs = systemResourceDir.getFileSystem(tajoConf);
+    if (defaultFs.exists(systemResourceDir)) {
+      defaultFs.delete(systemResourceDir, true);
+    }
+    
+    EvaluationContext context = new EvaluationContext();
+    context.addParameter(TajoConf.class.getName(), tajoConf);
+    
+    FileSystemRule fsRule = new FileSystemRule();
+    EvaluationResult result = fsRule.evaluate(context);
+    
+    assertThat(result, is(notNullValue()));
+    assertThat(result.getReturnCode(), is(EvaluationResultCode.ERROR));
+  }
+}