Merge pull request #998 from drcrallen/zkConfigJackson

Change zk configs to use Jackson injection instead of Skife

indexing-service/src/main/java/io/druid/guice/IndexingServiceModuleHelper.java

@@ -22,6 +22,7 @@ package io.druid.guice;
 import com.google.inject.Binder;
 import io.druid.indexing.overlord.config.ForkingTaskRunnerConfig;
 import io.druid.indexing.overlord.config.RemoteTaskRunnerConfig;
+import io.druid.server.initialization.IndexerZkConfig;
 
 /**
  */
@@ -31,5 +32,6 @@ public class IndexingServiceModuleHelper
   {
     JsonConfigProvider.bind(binder, "druid.indexer.runner", ForkingTaskRunnerConfig.class);
     JsonConfigProvider.bind(binder, "druid.indexer.runner", RemoteTaskRunnerConfig.class);
+    JsonConfigProvider.bind(binder, "druid.zk.paths.indexer", IndexerZkConfig.class);
   }
 }

indexing-service/src/main/java/io/druid/indexing/overlord/RemoteTaskRunner.java

@@ -51,6 +51,7 @@ import io.druid.indexing.overlord.config.RemoteTaskRunnerConfig;
 import io.druid.indexing.overlord.setup.WorkerSelectStrategy;
 import io.druid.indexing.worker.TaskAnnouncement;
 import io.druid.indexing.worker.Worker;
+import io.druid.server.initialization.IndexerZkConfig;
 import io.druid.server.initialization.ZkPathsConfig;
 import io.druid.tasklogs.TaskLogStreamer;
 import org.apache.commons.lang.mutable.MutableInt;
@@ -102,7 +103,7 @@ public class RemoteTaskRunner implements TaskRunner, TaskLogStreamer
 
   private final ObjectMapper jsonMapper;
   private final RemoteTaskRunnerConfig config;
-  private final ZkPathsConfig zkPaths;
+  private final IndexerZkConfig indexerZkConfig;
   private final CuratorFramework cf;
   private final PathChildrenCacheFactory pathChildrenCacheFactory;
   private final PathChildrenCache workerPathCache;
@@ -129,7 +130,7 @@ public class RemoteTaskRunner implements TaskRunner, TaskLogStreamer
   public RemoteTaskRunner(
       ObjectMapper jsonMapper,
       RemoteTaskRunnerConfig config,
-      ZkPathsConfig zkPaths,
+      IndexerZkConfig indexerZkConfig,
       CuratorFramework cf,
       PathChildrenCacheFactory pathChildrenCacheFactory,
       HttpClient httpClient,
@@ -138,10 +139,10 @@ public class RemoteTaskRunner implements TaskRunner, TaskLogStreamer
   {
     this.jsonMapper = jsonMapper;
     this.config = config;
-    this.zkPaths = zkPaths;
+    this.indexerZkConfig = indexerZkConfig;
     this.cf = cf;
     this.pathChildrenCacheFactory = pathChildrenCacheFactory;
-    this.workerPathCache = pathChildrenCacheFactory.make(cf, zkPaths.getIndexerAnnouncementPath());
+    this.workerPathCache = pathChildrenCacheFactory.make(cf, indexerZkConfig.getAnnouncementsPath());
     this.httpClient = httpClient;
     this.strategy = strategy;
   }
@@ -496,7 +497,7 @@ public class RemoteTaskRunner implements TaskRunner, TaskLogStreamer
     } else {
       final String workerId = worker.getHost();
       log.info("Cleaning up task[%s] on worker[%s]", taskId, workerId);
-      final String statusPath = JOINER.join(zkPaths.getIndexerStatusPath(), workerId, taskId);
+      final String statusPath = JOINER.join(indexerZkConfig.getStatus(), workerId, taskId);
       try {
         cf.delete().guaranteed().forPath(statusPath);
       }
@@ -582,7 +583,7 @@ public class RemoteTaskRunner implements TaskRunner, TaskLogStreamer
       throw new ISE("Length of raw bytes for task too large[%,d > %,d]", rawBytes.length, config.getMaxZnodeBytes());
     }
 
-    String taskPath = JOINER.join(zkPaths.getIndexerTaskPath(), theWorker.getHost(), task.getId());
+    String taskPath = JOINER.join(indexerZkConfig.getTasksPath(), theWorker.getHost(), task.getId());
 
     if (cf.checkExists().forPath(taskPath) == null) {
       cf.create()
@@ -642,7 +643,7 @@ public class RemoteTaskRunner implements TaskRunner, TaskLogStreamer
     log.info("Worker[%s] reportin' for duty!", worker.getHost());
 
     try {
-      final String workerStatusPath = JOINER.join(zkPaths.getIndexerStatusPath(), worker.getHost());
+      final String workerStatusPath = JOINER.join(indexerZkConfig.getStatus(), worker.getHost());
       final PathChildrenCache statusCache = pathChildrenCacheFactory.make(cf, workerStatusPath);
       final SettableFuture<ZkWorker> retVal = SettableFuture.create();
       final ZkWorker zkWorker = new ZkWorker(
@@ -787,7 +788,7 @@ public class RemoteTaskRunner implements TaskRunner, TaskLogStreamer
     if (zkWorker != null) {
       try {
         List<String> tasksToFail = Lists.newArrayList(
-            cf.getChildren().forPath(JOINER.join(zkPaths.getIndexerTaskPath(), worker.getHost()))
+            cf.getChildren().forPath(JOINER.join(indexerZkConfig.getTasksPath(), worker.getHost()))
         );
         log.info("[%s]: Found %d tasks assigned", worker.getHost(), tasksToFail.size());
 
@@ -805,7 +806,7 @@ public class RemoteTaskRunner implements TaskRunner, TaskLogStreamer
         for (String assignedTask : tasksToFail) {
           RemoteTaskRunnerWorkItem taskRunnerWorkItem = runningTasks.remove(assignedTask);
           if (taskRunnerWorkItem != null) {
-            String taskPath = JOINER.join(zkPaths.getIndexerTaskPath(), worker.getHost(), assignedTask);
+            String taskPath = JOINER.join(indexerZkConfig.getTasksPath(), worker.getHost(), assignedTask);
             if (cf.checkExists().forPath(taskPath) != null) {
               cf.delete().guaranteed().forPath(taskPath);
             }

indexing-service/src/main/java/io/druid/indexing/overlord/RemoteTaskRunnerFactory.java

@@ -29,6 +29,7 @@ import io.druid.indexing.overlord.config.RemoteTaskRunnerConfig;
 import io.druid.indexing.overlord.setup.FillCapacityWorkerSelectStrategy;
 import io.druid.indexing.overlord.setup.WorkerBehaviorConfig;
 import io.druid.indexing.overlord.setup.WorkerSelectStrategy;
+import io.druid.server.initialization.IndexerZkConfig;
 import io.druid.server.initialization.ZkPathsConfig;
 import org.apache.curator.framework.CuratorFramework;
 
@@ -38,7 +39,7 @@ public class RemoteTaskRunnerFactory implements TaskRunnerFactory
 {
   private final CuratorFramework curator;
   private final RemoteTaskRunnerConfig remoteTaskRunnerConfig;
-  private final ZkPathsConfig zkPaths;
+  private final IndexerZkConfig zkPaths;
   private final ObjectMapper jsonMapper;
   private final HttpClient httpClient;
   private final WorkerSelectStrategy strategy;
@@ -47,7 +48,7 @@ public class RemoteTaskRunnerFactory implements TaskRunnerFactory
   public RemoteTaskRunnerFactory(
       final CuratorFramework curator,
       final RemoteTaskRunnerConfig remoteTaskRunnerConfig,
-      final ZkPathsConfig zkPaths,
+      final IndexerZkConfig zkPaths,
       final ObjectMapper jsonMapper,
       @Global final HttpClient httpClient,
       final Supplier<WorkerBehaviorConfig> workerBehaviourConfigSupplier

indexing-service/src/main/java/io/druid/indexing/overlord/TaskMaster.java

@@ -38,6 +38,7 @@ import io.druid.indexing.overlord.config.TaskQueueConfig;
 import io.druid.indexing.overlord.autoscaling.ResourceManagementScheduler;
 import io.druid.indexing.overlord.autoscaling.ResourceManagementSchedulerFactory;
 import io.druid.server.DruidNode;
+import io.druid.server.initialization.IndexerZkConfig;
 import io.druid.server.initialization.ZkPathsConfig;
 import org.apache.curator.framework.CuratorFramework;
 import org.apache.curator.framework.recipes.leader.LeaderSelector;
@@ -74,7 +75,7 @@ public class TaskMaster
       final TaskStorage taskStorage,
       final TaskActionClientFactory taskActionClientFactory,
       @Self final DruidNode node,
-      final ZkPathsConfig zkPaths,
+      final IndexerZkConfig zkPaths,
       final TaskRunnerFactory runnerFactory,
       final ResourceManagementSchedulerFactory managementSchedulerFactory,
       final CuratorFramework curator,
@@ -85,7 +86,7 @@ public class TaskMaster
     this.taskActionClientFactory = taskActionClientFactory;
     this.leaderSelector = new LeaderSelector(
         curator,
-        zkPaths.getIndexerLeaderLatchPath(),
+        zkPaths.getLeaderLatchPath(),
         new LeaderSelectorListener()
         {
           @Override

indexing-service/src/main/java/io/druid/indexing/worker/WorkerCuratorCoordinator.java

@@ -31,7 +31,7 @@ import com.metamx.common.lifecycle.LifecycleStop;
 import com.metamx.common.logger.Logger;
 import io.druid.curator.announcement.Announcer;
 import io.druid.indexing.overlord.config.RemoteTaskRunnerConfig;
-import io.druid.server.initialization.ZkPathsConfig;
+import io.druid.server.initialization.IndexerZkConfig;
 import org.apache.curator.framework.CuratorFramework;
 import org.apache.zookeeper.CreateMode;
 import org.joda.time.DateTime;
@@ -63,7 +63,7 @@ public class WorkerCuratorCoordinator
   @Inject
   public WorkerCuratorCoordinator(
       ObjectMapper jsonMapper,
-      ZkPathsConfig zkPaths,
+      IndexerZkConfig indexerZkConfig,
       RemoteTaskRunnerConfig config,
       CuratorFramework curatorFramework,
       Worker worker
@@ -76,9 +76,9 @@ public class WorkerCuratorCoordinator
 
     this.announcer = new Announcer(curatorFramework, MoreExecutors.sameThreadExecutor());
 
-    this.baseAnnouncementsPath = getPath(Arrays.asList(zkPaths.getIndexerAnnouncementPath(), worker.getHost()));
+    this.baseAnnouncementsPath = getPath(Arrays.asList(indexerZkConfig.getAnnouncementsPath(), worker.getHost()));
-    this.baseTaskPath = getPath(Arrays.asList(zkPaths.getIndexerTaskPath(), worker.getHost()));
+    this.baseTaskPath = getPath(Arrays.asList(indexerZkConfig.getTasksPath(), worker.getHost()));
-    this.baseStatusPath = getPath(Arrays.asList(zkPaths.getIndexerStatusPath(), worker.getHost()));
+    this.baseStatusPath = getPath(Arrays.asList(indexerZkConfig.getStatus(), worker.getHost()));
   }
 
   @LifecycleStart

indexing-service/src/main/java/io/druid/server/initialization/IndexerZkConfig.java

@@ -0,0 +1,87 @@
+/*
+ * Druid - a distributed column store.
+ * Copyright (C) 2012, 2013, 2014  Metamarkets Group Inc.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+ */
+
+package io.druid.server.initialization;
+
+import com.fasterxml.jackson.annotation.JsonIgnore;
+import com.fasterxml.jackson.annotation.JsonProperty;
+import com.google.inject.Inject;
+import org.apache.curator.utils.ZKPaths;
+
+/**
+ *
+ */
+public class IndexerZkConfig
+{
+  @Inject
+  @JsonIgnore
+  private ZkPathsConfig zkPathsConfig = new ZkPathsConfig();
+  @JsonProperty
+  private String base;
+  @JsonProperty
+  private String announcementsPath;
+  @JsonProperty
+  private String tasksPath;
+  @JsonProperty
+  private String status;
+  @JsonProperty
+  private String leaderLatchPath;
+
+  private String defaultIndexerPath(final String subPath)
+  {
+    return getZkPathsConfig().defaultPath(ZKPaths.makePath(getBase(), subPath));
+  }
+
+  public String getBase()
+  {
+    return base == null ? "indexer" : base;
+  }
+
+  public String getAnnouncementsPath()
+  {
+    return announcementsPath == null ? defaultIndexerPath("announcements") : announcementsPath;
+  }
+
+  public String getTasksPath()
+  {
+    return tasksPath == null ? defaultIndexerPath("tasks") : tasksPath;
+  }
+
+  public String getStatus()
+  {
+    return status == null ? defaultIndexerPath("status") : status;
+  }
+
+  public String getLeaderLatchPath()
+  {
+    return leaderLatchPath == null ? defaultIndexerPath("leaderLatchPath") : leaderLatchPath;
+  }
+
+  public ZkPathsConfig getZkPathsConfig()
+  {
+    return zkPathsConfig;
+  }
+
+  // Setter required for easy debugging
+  public IndexerZkConfig setZkPathsConfig(ZkPathsConfig zkPathsConfig)
+  {
+    this.zkPathsConfig = zkPathsConfig;
+    return this;
+  }
+}

indexing-service/src/test/java/io/druid/indexing/overlord/RemoteTaskRunnerTest.java

@@ -43,6 +43,7 @@ import io.druid.indexing.overlord.setup.FillCapacityWorkerSelectStrategy;
 import io.druid.indexing.worker.TaskAnnouncement;
 import io.druid.indexing.worker.Worker;
 import io.druid.jackson.DefaultObjectMapper;
+import io.druid.server.initialization.IndexerZkConfig;
 import io.druid.server.initialization.ZkPathsConfig;
 import org.apache.curator.framework.CuratorFramework;
 import org.apache.curator.framework.CuratorFrameworkFactory;
@@ -57,6 +58,7 @@ import org.junit.Test;
 
 import java.util.Set;
 import java.util.concurrent.Future;
+import java.util.concurrent.TimeUnit;
 
 public class RemoteTaskRunnerTest
 {
@@ -66,6 +68,7 @@ public class RemoteTaskRunnerTest
   private static final String announcementsPath = String.format("%s/indexer/announcements/worker", basePath);
   private static final String tasksPath = String.format("%s/indexer/tasks/worker", basePath);
   private static final String statusPath = String.format("%s/indexer/status/worker", basePath);
+  private static final int TIMEOUT_SECONDS = 5;
 
   private TestingCluster testingCluster;
   private CuratorFramework cf;
@@ -282,7 +285,7 @@ public class RemoteTaskRunnerTest
 
     cf.delete().forPath(joiner.join(statusPath, task.getId()));
 
-    TaskStatus status = future.get();
+    TaskStatus status = future.get(TIMEOUT_SECONDS, TimeUnit.SECONDS);
 
     Assert.assertEquals(status.getStatusCode(), TaskStatus.Status.FAILED);
   }
@@ -335,7 +338,7 @@ public class RemoteTaskRunnerTest
 
     ListenableFuture<TaskStatus> future = remoteTaskRunner.run(task);
 
-    TaskStatus status = future.get();
+    TaskStatus status = future.get(TIMEOUT_SECONDS, TimeUnit.SECONDS);
 
     Assert.assertEquals(TaskStatus.Status.SUCCESS, status.getStatusCode());
   }
@@ -353,7 +356,7 @@ public class RemoteTaskRunnerTest
 
     cf.delete().forPath(announcementsPath);
 
-    TaskStatus status = future.get();
+    TaskStatus status = future.get(TIMEOUT_SECONDS, TimeUnit.SECONDS);
 
     Assert.assertEquals(TaskStatus.Status.FAILED, status.getStatusCode());
   }
@@ -393,14 +396,14 @@ public class RemoteTaskRunnerTest
     remoteTaskRunner = new RemoteTaskRunner(
         jsonMapper,
         config,
-        new ZkPathsConfig()
+        new IndexerZkConfig().setZkPathsConfig(new ZkPathsConfig()
         {
           @Override
-          public String getZkBasePath()
+          public String getBase()
           {
             return basePath;
           }
-        },
+        }),
         cf,
         new SimplePathChildrenCacheFactory.Builder().build(),
         null,

indexing-service/src/test/java/io/druid/indexing/worker/WorkerTaskMonitorTest.java

@@ -50,6 +50,7 @@ import io.druid.segment.loading.LocalDataSegmentPuller;
 import io.druid.segment.loading.OmniSegmentLoader;
 import io.druid.segment.loading.SegmentLoaderConfig;
 import io.druid.segment.loading.StorageLocationConfig;
+import io.druid.server.initialization.IndexerZkConfig;
 import io.druid.server.initialization.ZkPathsConfig;
 import junit.framework.Assert;
 import org.apache.curator.framework.CuratorFramework;
@@ -139,14 +140,15 @@ public class WorkerTaskMonitorTest
 
     workerCuratorCoordinator = new WorkerCuratorCoordinator(
         jsonMapper,
+        new IndexerZkConfig().setZkPathsConfig(
         new ZkPathsConfig()
         {
           @Override
-          public String getZkBasePath()
+          public String getBase()
           {
             return basePath;
           }
-        },
+        }),
         new TestRemoteTaskRunnerConfig(),
         cf,
         worker

indexing-service/src/test/java/io/druid/indexing/worker/http/WorkerResourceTest.java

@@ -25,6 +25,7 @@ import io.druid.indexing.overlord.config.RemoteTaskRunnerConfig;
 import io.druid.indexing.worker.Worker;
 import io.druid.indexing.worker.WorkerCuratorCoordinator;
 import io.druid.jackson.DefaultObjectMapper;
+import io.druid.server.initialization.IndexerZkConfig;
 import io.druid.server.initialization.ZkPathsConfig;
 import junit.framework.Assert;
 import org.apache.curator.framework.CuratorFramework;
@@ -76,14 +77,14 @@ public class WorkerResourceTest
 
     curatorCoordinator = new WorkerCuratorCoordinator(
         jsonMapper,
-        new ZkPathsConfig()
+        new IndexerZkConfig().setZkPathsConfig(new ZkPathsConfig()
         {
           @Override
-          public String getZkBasePath()
+          public String getBase()
           {
             return basePath;
           }
-        },
+        }),
         new RemoteTaskRunnerConfig(),
         cf,
         worker

indexing-service/src/test/java/io/druid/server/initialization/IndexerZkConfigTest.java

@@ -0,0 +1,175 @@
+/*
+ * Druid - a distributed column store.
+ * Copyright (C) 2012, 2013, 2014  Metamarkets Group Inc.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+ */
+
+package io.druid.server.initialization;
+
+import com.fasterxml.jackson.annotation.JsonProperty;
+import com.google.common.collect.ImmutableList;
+import com.google.inject.Binder;
+import com.google.inject.Injector;
+import com.google.inject.Module;
+import com.google.inject.name.Names;
+import io.druid.curator.CuratorConfig;
+import io.druid.guice.GuiceInjectors;
+import io.druid.guice.JsonConfigProvider;
+import io.druid.guice.JsonConfigurator;
+import io.druid.initialization.Initialization;
+import org.junit.AfterClass;
+import org.junit.Assert;
+import org.junit.Before;
+import org.junit.BeforeClass;
+import org.junit.Test;
+
+import java.lang.reflect.Field;
+import java.lang.reflect.InvocationTargetException;
+import java.lang.reflect.Method;
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.HashMap;
+import java.util.Map;
+import java.util.UUID;
+
+/**
+ *
+ */
+public class IndexerZkConfigTest
+{
+  private static final String indexerPropertyString = "test.druid.zk.paths.indexer";
+  private static final String zkServiceConfigString = "test.druid.zk.paths";
+  private static final Collection<String> clobberableProperties = new ArrayList<>();
+
+  private static final Module simpleZkConfigModule = new Module()
+  {
+    @Override
+    public void configure(Binder binder)
+    {
+      binder.bindConstant().annotatedWith(Names.named("serviceName")).to("druid/test");
+      binder.bindConstant().annotatedWith(Names.named("servicePort")).to(0);
+      // See IndexingServiceModuleHelper
+      JsonConfigProvider.bind(binder, indexerPropertyString, IndexerZkConfig.class);
+      JsonConfigProvider.bind(
+          binder, zkServiceConfigString,
+          CuratorConfig.class
+      );
+    }
+  };
+
+  private static final Map<String, String> priorValues = new HashMap<>();
+
+  @BeforeClass
+  public static void setup()
+  {
+    for (Field field : IndexerZkConfig.class.getDeclaredFields()) {
+      if (null != field.getAnnotation(JsonProperty.class)) {
+        clobberableProperties.add(String.format("%s.%s", indexerPropertyString, field.getName()));
+      }
+    }
+    for (Field field : ZkPathsConfig.class.getDeclaredFields()) {
+      if (null != field.getAnnotation(JsonProperty.class)) {
+        clobberableProperties.add(String.format("%s.%s", zkServiceConfigString, field.getName()));
+      }
+    }
+    for (String clobberableProperty : clobberableProperties) {
+      priorValues.put(clobberableProperty, System.getProperty(clobberableProperty));
+    }
+  }
+
+  @AfterClass
+  public static void cleanup()
+  {
+    for (Map.Entry<String, String> entry : priorValues.entrySet()) {
+      if (null != entry.getKey() && null != entry.getValue()) {
+        System.setProperty(entry.getKey(), entry.getValue());
+      }
+    }
+  }
+
+  private Map<String, String> propertyValues = new HashMap<>();
+  private int assertions = 0;
+
+  @Before
+  public void setupTest()
+  {
+    for (String property : clobberableProperties) {
+      propertyValues.put(property, UUID.randomUUID().toString());
+    }
+    System.getProperties().putAll(propertyValues);
+    assertions = 0;
+  }
+
+
+  private void validateEntries(ZkPathsConfig zkPathsConfig)
+      throws IllegalAccessException, NoSuchMethodException, InvocationTargetException
+  {
+    for (Field field : ZkPathsConfig.class.getDeclaredFields()) {
+      if (null != field.getAnnotation(JsonProperty.class)) {
+        String property = String.format("%s.%s", zkServiceConfigString, field.getName());
+        String getter = String.format(
+            "get%s%s",
+            field.getName().substring(0, 1).toUpperCase(),
+            field.getName().substring(1)
+        );
+        Method method = ZkPathsConfig.class.getDeclaredMethod(getter);
+        Assert.assertEquals(propertyValues.get(property), method.invoke(zkPathsConfig));
+        ++assertions;
+      }
+    }
+  }
+
+  private void validateEntries(IndexerZkConfig indexerZkConfig)
+      throws IllegalAccessException, NoSuchMethodException, InvocationTargetException
+  {
+    for (Field field : IndexerZkConfig.class.getDeclaredFields()) {
+      if (null != field.getAnnotation(JsonProperty.class)) {
+        String property = String.format("%s.%s", indexerPropertyString, field.getName());
+        String getter = String.format(
+            "get%s%s",
+            field.getName().substring(0, 1).toUpperCase(),
+            field.getName().substring(1)
+        );
+        Method method = IndexerZkConfig.class.getDeclaredMethod(getter);
+        Assert.assertEquals(propertyValues.get(property), method.invoke(indexerZkConfig));
+        ++assertions;
+      }
+    }
+  }
+
+  @Test
+  public void testSimpleConfig() throws IllegalAccessException, NoSuchMethodException, InvocationTargetException
+  {
+    final Injector injector = Initialization.makeInjectorWithModules(
+        GuiceInjectors.makeStartupInjector(),
+        ImmutableList.<Object>of(simpleZkConfigModule)
+    );
+    JsonConfigurator configurator = injector.getBinding(JsonConfigurator.class).getProvider().get();
+
+    JsonConfigProvider<ZkPathsConfig> zkPathsConfig = JsonConfigProvider.of(zkServiceConfigString, ZkPathsConfig.class);
+    zkPathsConfig.inject(System.getProperties(), configurator);
+
+    JsonConfigProvider<IndexerZkConfig> indexerZkConfig = JsonConfigProvider.of(
+        indexerPropertyString,
+        IndexerZkConfig.class
+    );
+    indexerZkConfig.inject(System.getProperties(), configurator);
+
+    validateEntries(indexerZkConfig.get().get());
+    validateEntries(zkPathsConfig.get().get());
+    Assert.assertEquals(clobberableProperties.size(), assertions);
+  }
+}

pom.xml

@@ -456,7 +456,7 @@
             <dependency>
                 <groupId>org.easymock</groupId>
                 <artifactId>easymock</artifactId>
-                <version>3.0</version>
+                <version>3.3</version>
                 <scope>test</scope>
             </dependency>
             <dependency>

server/src/main/java/io/druid/curator/CuratorConfig.java

@@ -19,22 +19,50 @@
 
 package io.druid.curator;
 
-import org.skife.config.Config;
+import com.fasterxml.jackson.annotation.JsonProperty;
-import org.skife.config.Default;
+import javax.validation.constraints.Min;
 
 /**
  */
-public abstract class CuratorConfig
+public class CuratorConfig
 {
-  @Config("druid.zk.service.host")
+  @JsonProperty("host")
-  @Default("localhost")
+  private String zkHosts = "localhost";
-  public abstract String getZkHosts();
 
-  @Config("druid.zk.service.sessionTimeoutMs")
+  @JsonProperty("sessionTimeoutMs")
-  @Default("30000")
+  @Min(0)
-  public abstract int getZkSessionTimeoutMs();
+  private int zkSessionTimeoutMs = 30000;
 
-  @Config("druid.curator.compress")
+  @JsonProperty("compress")
-  @Default("true")
+  private boolean enableCompression = true;
-  public abstract boolean enableCompression();
+
+  public String getZkHosts()
+  {
+    return zkHosts;
+  }
+
+  public void setZkHosts(String zkHosts)
+  {
+    this.zkHosts = zkHosts;
+  }
+
+  public Integer getZkSessionTimeoutMs()
+  {
+    return zkSessionTimeoutMs;
+  }
+
+  public void setZkSessionTimeoutMs(Integer zkSessionTimeoutMs)
+  {
+    this.zkSessionTimeoutMs = zkSessionTimeoutMs;
+  }
+
+  public Boolean getEnableCompression()
+  {
+    return enableCompression;
+  }
+
+  public void setEnableCompression(Boolean enableCompression)
+  {
+    this.enableCompression = enableCompression;
+  }
 }

server/src/main/java/io/druid/curator/CuratorModule.java

@@ -25,6 +25,7 @@ import com.google.inject.Provides;
 import com.metamx.common.lifecycle.Lifecycle;
 import com.metamx.common.logger.Logger;
 import io.druid.guice.ConfigProvider;
+import io.druid.guice.JsonConfigProvider;
 import io.druid.guice.LazySingleton;
 import org.apache.curator.framework.CuratorFramework;
 import org.apache.curator.framework.CuratorFrameworkFactory;
@@ -41,7 +42,9 @@ public class CuratorModule implements Module
   @Override
   public void configure(Binder binder)
   {
-    ConfigProvider.bind(binder, CuratorConfig.class);
+    JsonConfigProvider.bind(
+        binder, "druid.zk.service",
+        CuratorConfig.class);
   }
 
   @Provides @LazySingleton
@@ -52,7 +55,7 @@ public class CuratorModule implements Module
                                .connectString(config.getZkHosts())
                                .sessionTimeoutMs(config.getZkSessionTimeoutMs())
             .retryPolicy(new BoundedExponentialBackoffRetry(1000, 45000, 30))
-            .compressionProvider(new PotentiallyGzippedCompressionProvider(config.enableCompression()))
+            .compressionProvider(new PotentiallyGzippedCompressionProvider(config.getEnableCompression()))
             .build();
 
     lifecycle.addHandler(

server/src/main/java/io/druid/guice/ServerModule.java

@@ -45,8 +45,7 @@ public class ServerModule implements DruidModule
   @Override
   public void configure(Binder binder)
   {
-    ConfigProvider.bind(binder, ZkPathsConfig.class);
+    JsonConfigProvider.bind(binder, "druid.zk.paths", ZkPathsConfig.class);
-
     JsonConfigProvider.bind(binder, "druid", DruidNode.class, Self.class);
   }
 

server/src/main/java/io/druid/server/bridge/DruidClusterBridge.java

@@ -43,6 +43,7 @@ import io.druid.server.DruidNode;
 import io.druid.server.coordination.AbstractDataSegmentAnnouncer;
 import io.druid.server.coordination.DataSegmentAnnouncer;
 import io.druid.server.coordination.DruidServerMetadata;
+import io.druid.server.initialization.ZkPathsConfig;
 import io.druid.timeline.DataSegment;
 import org.apache.curator.framework.CuratorFramework;
 import org.apache.curator.framework.recipes.leader.LeaderLatch;
@@ -80,6 +81,9 @@ public class DruidClusterBridge
   private final BridgeZkCoordinator bridgeZkCoordinator;
   private final Announcer announcer;
   private final ServerInventoryView<Object> serverInventoryView;
+  private final ZkPathsConfig zkPathsConfig;
+
+  private final DruidServerMetadata druidServerMetadata;
 
   private final Map<DataSegment, Integer> segments = Maps.newHashMap();
   private final Object lock = new Object();
@@ -91,6 +95,8 @@ public class DruidClusterBridge
   public DruidClusterBridge(
       ObjectMapper jsonMapper,
       DruidClusterBridgeConfig config,
+      ZkPathsConfig zkPathsConfig,
+      DruidServerMetadata druidServerMetadata,
       ScheduledExecutorFactory scheduledExecutorFactory,
       @Self DruidNode self,
       CuratorFramework curator,
@@ -104,10 +110,12 @@ public class DruidClusterBridge
     this.jsonMapper = jsonMapper;
     this.config = config;
     this.bridgeZkCoordinator = bridgeZkCoordinator;
+    this.zkPathsConfig = zkPathsConfig;
     this.announcer = announcer;
     this.serverInventoryView = serverInventoryView;
     this.curator = curator;
     this.leaderLatch = leaderLatch;
+    this.druidServerMetadata = druidServerMetadata;
 
     this.exec = scheduledExecutorFactory.create(1, "Coordinator-Exec--%d");
     this.self = self;
@@ -212,7 +220,7 @@ public class DruidClusterBridge
   private LeaderLatch createNewLeaderLatch()
   {
     final LeaderLatch newLeaderLatch = new LeaderLatch(
-        curator, ZKPaths.makePath(config.getConnectorPath(), BRIDGE_OWNER_NODE), self.getHostAndPort()
+        curator, ZKPaths.makePath(zkPathsConfig.getConnectorPath(), BRIDGE_OWNER_NODE), self.getHostAndPort()
     );
 
     newLeaderLatch.addListener(
@@ -309,13 +317,13 @@ public class DruidClusterBridge
                         self.getHostAndPort(),
                         totalMaxSize,
                         NODE_TYPE,
-                        config.getTier(),
+                        druidServerMetadata.getTier(),
-                        config.getPriority()
+                        druidServerMetadata.getPriority()
                     );
 
                     try {
-                      final String path = ZKPaths.makePath(config.getAnnouncementsPath(), self.getHostAndPort());
+                      final String path = ZKPaths.makePath(zkPathsConfig.getAnnouncementsPath(), self.getHostAndPort());
-                      log.info("Updating [%s] to have a maxSize of[%,d] bytes", self.getHostAndPort(), totalMaxSize);
+                      log.info("Updating [%s] to have a maxSize of[%,d] bytes", self.getHost(), totalMaxSize);
                       announcer.update(path, jsonMapper.writeValueAsBytes(me));
                     }
                     catch (Exception e) {

server/src/main/java/io/druid/server/bridge/DruidClusterBridgeConfig.java

@@ -19,34 +19,50 @@
 
 package io.druid.server.bridge;
 
+import com.fasterxml.jackson.annotation.JsonProperty;
+import com.google.inject.Inject;
 import io.druid.client.DruidServer;
-import io.druid.server.initialization.ZkPathsConfig;
+import io.druid.client.DruidServerConfig;
 import org.joda.time.Duration;
-import org.skife.config.Config;
-import org.skife.config.Default;
 
 /**
  */
-public abstract class DruidClusterBridgeConfig extends ZkPathsConfig
+public abstract class DruidClusterBridgeConfig
 {
-  @Config("druid.server.tier")
+  @JsonProperty
-  @Default(DruidServer.DEFAULT_TIER)
+  private Duration startDelay = new Duration("PT300s");
-  public abstract String getTier();
+  @JsonProperty
+  private Duration period = new Duration("PT60s");
+  @JsonProperty
+  private String brokerServiceName = "broker";
 
-  @Config("druid.bridge.startDelay")
+  public Duration getStartDelay()
-  @Default("PT300s")
-  public abstract Duration getStartDelay();
-
-  @Config("druid.bridge.period")
-  @Default("PT60s")
-  public abstract Duration getPeriod();
-
-  @Config("druid.bridge.broker.serviceName")
-  public abstract String getBrokerServiceName();
-
-  @Config("druid.server.priority")
-  public int getPriority()
   {
-    return DruidServer.DEFAULT_PRIORITY;
+    return startDelay;
+  }
+
+  public void setStartDelay(Duration startDelay)
+  {
+    this.startDelay = startDelay;
+  }
+
+  public Duration getPeriod()
+  {
+    return period;
+  }
+
+  public void setPeriod(Duration period)
+  {
+    this.period = period;
+  }
+
+  public String getBrokerServiceName()
+  {
+    return brokerServiceName;
+  }
+
+  public void setBrokerServiceName(String brokerServiceName)
+  {
+    this.brokerServiceName = brokerServiceName;
   }
 }

server/src/main/java/io/druid/server/initialization/ZkPathsConfig.java

@@ -19,85 +19,105 @@
 
 package io.druid.server.initialization;
 
+import com.fasterxml.jackson.annotation.JsonProperty;
 import org.apache.curator.utils.ZKPaths;
-import org.skife.config.Config;
 
-public abstract class ZkPathsConfig
+public class ZkPathsConfig
 {
-  @Config("druid.zk.paths.base")
+  @JsonProperty
-  public String getZkBasePath()
+  private
+  String base = "druid";
+  @JsonProperty
+  private
+  String propertiesPath;
+  @JsonProperty
+  private
+  String announcementsPath;
+  @JsonProperty
+  private
+  String servedSegmentsPath;
+  @JsonProperty
+  private
+  String liveSegmentsPath;
+  @JsonProperty
+  private
+  String coordinatorPath;
+  @JsonProperty
+  private
+  String loadQueuePath;
+  @JsonProperty
+  private
+  String connectorPath;
+
+  public String getBase()
   {
-    return "druid";
+    return base;
   }
 
-  @Config("druid.zk.paths.propertiesPath")
   public String getPropertiesPath()
   {
-    return defaultPath("properties");
+    return (null == propertiesPath) ? defaultPath("properties") : propertiesPath;
   }
 
-  @Config("druid.zk.paths.announcementsPath")
   public String getAnnouncementsPath()
   {
-    return defaultPath("announcements");
+    return (null == announcementsPath) ? defaultPath("announcements") : announcementsPath;
   }
 
-  @Config("druid.zk.paths.servedSegmentsPath")
   public String getServedSegmentsPath()
   {
-    return defaultPath("servedSegments");
+    return (null == servedSegmentsPath) ?  defaultPath("servedSegments") : servedSegmentsPath;
   }
 
-  @Config("druid.zk.paths.liveSegmentsPath")
   public String getLiveSegmentsPath()
   {
-    return defaultPath("segments");
+    return (null == liveSegmentsPath) ? defaultPath("segments") : liveSegmentsPath;
   }
 
-  @Config("druid.zk.paths.loadQueuePath")
-  public String getLoadQueuePath()
-  {
-    return defaultPath("loadQueue");
-  }
-
-  @Config("druid.zk.paths.coordinatorPath")
   public String getCoordinatorPath()
   {
-    return defaultPath("coordinator");
+    return (null == coordinatorPath) ?  defaultPath("coordinator") : coordinatorPath;
+  }
+
+  public String getLoadQueuePath()
+  {
+    return (null == loadQueuePath) ?  defaultPath("loadQueue") : loadQueuePath;
   }
 
-  @Config("druid.zk.paths.connectorPath")
   public String getConnectorPath()
   {
-    return defaultPath("connector");
+    return (null == connectorPath) ?  defaultPath("connector") : connectorPath;
   }
 
-  @Config("druid.zk.paths.indexer.announcementsPath")
+  protected String defaultPath(final String subPath)
-  public String getIndexerAnnouncementPath()
   {
-    return defaultPath("indexer/announcements");
+    return ZKPaths.makePath(getBase(), subPath);
   }
 
-  @Config("druid.zk.paths.indexer.tasksPath")
+  @Override
-  public String getIndexerTaskPath()
+  public boolean equals(Object other){
-  {
+    if(null == other){
-    return defaultPath("indexer/tasks");
+      return false;
-  }
+    }
-
+    if(this == other){
-  @Config("druid.zk.paths.indexer.statusPath")
+      return true;
-  public String getIndexerStatusPath()
+    }
-  {
+    if(!(other instanceof ZkPathsConfig)){
-    return defaultPath("indexer/status");
+      return false;
-  }
+    }
-
+    ZkPathsConfig otherConfig = (ZkPathsConfig) other;
-  @Config("druid.zk.paths.indexer.leaderLatchPath")
+    if(
-  public String getIndexerLeaderLatchPath()
+        this.getBase().equals(otherConfig.getBase()) &&
-  {
+        this.getAnnouncementsPath().equals(otherConfig.getAnnouncementsPath()) &&
-    return defaultPath("indexer/leaderLatchPath");
+        this.getConnectorPath().equals(otherConfig.getConnectorPath()) &&
-  }
+        this.getLiveSegmentsPath().equals(otherConfig.getLiveSegmentsPath()) &&
-
+        this.getCoordinatorPath().equals(otherConfig.getCoordinatorPath()) &&
-  private String defaultPath(final String subPath)
+        this.getLoadQueuePath().equals(otherConfig.getLoadQueuePath()) &&
-  {
+        this.getPropertiesPath().equals(otherConfig.getPropertiesPath()) &&
-    return ZKPaths.makePath(getZkBasePath(), subPath);
+        this.getServedSegmentsPath().equals(otherConfig.getServedSegmentsPath())
+        ){
+      return true;
+    }
+    return false;
   }
 }

server/src/test/java/io/druid/client/client/BatchServerInventoryViewTest.java

@@ -120,7 +120,7 @@ public class BatchServerInventoryViewTest
         new ZkPathsConfig()
         {
           @Override
-          public String getZkBasePath()
+          public String getBase()
           {
             return testBasePath;
           }
@@ -139,7 +139,7 @@ public class BatchServerInventoryViewTest
         new ZkPathsConfig()
         {
           @Override
-          public String getZkBasePath()
+          public String getBase()
           {
             return testBasePath;
           }
@@ -155,7 +155,7 @@ public class BatchServerInventoryViewTest
         new ZkPathsConfig()
         {
           @Override
-          public String getZkBasePath()
+          public String getBase()
           {
             return testBasePath;
           }

server/src/test/java/io/druid/curator/CuratorConfigTest.java

@@ -0,0 +1,39 @@
+/*
+ * Druid - a distributed column store.
+ * Copyright (C) 2012, 2013, 2014  Metamarkets Group Inc.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+ */
+
+package io.druid.curator;
+
+import io.druid.guice.JsonConfigTesterBase;
+import org.junit.Assert;
+import org.junit.Test;
+
+import java.lang.reflect.InvocationTargetException;
+
+public class CuratorConfigTest extends JsonConfigTesterBase<CuratorConfig>
+{
+  @Test
+  public void testHostName() throws IllegalAccessException, NoSuchMethodException, InvocationTargetException
+  {
+    propertyValues.put(getPropertyKey("host"),"fooHost");
+    testProperties.putAll(propertyValues);
+    configProvider.inject(testProperties, configurator);
+    CuratorConfig config = configProvider.get().get();
+    Assert.assertEquals("fooHost", config.getZkHosts());
+  }
+}

server/src/test/java/io/druid/guice/JsonConfigTesterBase.java

@@ -0,0 +1,155 @@
+/*
+ * Druid - a distributed column store.
+ * Copyright (C) 2012, 2013, 2014  Metamarkets Group Inc.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+ */
+
+package io.druid.guice;
+
+import com.fasterxml.jackson.annotation.JsonProperty;
+import com.google.common.collect.ImmutableList;
+import com.google.inject.Binder;
+import com.google.inject.Injector;
+import com.google.inject.Module;
+import com.google.inject.name.Names;
+import io.druid.initialization.Initialization;
+import org.easymock.EasyMock;
+import org.junit.Assert;
+import org.junit.Before;
+import org.junit.Test;
+
+import java.lang.reflect.Field;
+import java.lang.reflect.InvocationTargetException;
+import java.lang.reflect.Method;
+import java.lang.reflect.ParameterizedType;
+import java.util.HashMap;
+import java.util.Map;
+import java.util.Properties;
+import java.util.UUID;
+
+/**
+ *
+ */
+public abstract class JsonConfigTesterBase<T>
+{
+
+  protected static final String configPrefix = "druid.test.prefix";
+  protected Injector injector;
+  protected final Class<T> clazz = (Class<T>) ((ParameterizedType) getClass().getGenericSuperclass()).getActualTypeArguments()[0];
+
+  protected Map<String, String> propertyValues = new HashMap<>();
+  protected int assertions = 0;
+  protected Properties testProperties = new Properties();
+
+  protected static String getPropertyKey(String fieldName){
+    return String.format(
+        "%s.%s",
+        configPrefix, fieldName
+    );
+  }
+  protected static String getPropertyKey(Field field)
+  {
+    JsonProperty jsonProperty = field.getAnnotation(JsonProperty.class);
+    if (null != jsonProperty) {
+      return getPropertyKey(
+          (jsonProperty.value() == null || jsonProperty.value().isEmpty())
+          ? field.getName()
+          : jsonProperty.value()
+      );
+    }
+    return null;
+  }
+
+  private final Module simpleJsonConfigModule = new Module()
+  {
+    @Override
+    public void configure(Binder binder)
+    {
+      binder.bindConstant().annotatedWith(Names.named("serviceName")).to("druid/test");
+      binder.bindConstant().annotatedWith(Names.named("servicePort")).to(0);
+      JsonConfigProvider.bind(binder, configPrefix, clazz);
+    }
+  };
+
+
+  protected final void validateEntries(T config)
+      throws IllegalAccessException, NoSuchMethodException, InvocationTargetException
+  {
+    for (Field field : clazz.getDeclaredFields()) {
+      final String propertyKey = getPropertyKey(field);
+      if (null != propertyKey) {
+        field.setAccessible(true);
+        String getter = String.format(
+            "get%s%s",
+            field.getName().substring(0, 1).toUpperCase(),
+            field.getName().substring(1)
+        );
+        Method method = clazz.getDeclaredMethod(getter);
+        final String value;
+        if (null != method) {
+          value = method.invoke(config).toString();
+        } else {
+          value = field.get(config).toString();
+        }
+
+        Assert.assertEquals(propertyValues.get(propertyKey), value);
+        ++assertions;
+      }
+    }
+  }
+
+  protected JsonConfigurator configurator;
+  protected JsonConfigProvider<T> configProvider;
+
+  @Before
+  public void setup() throws IllegalAccessException
+  {
+    assertions = 0;
+    T fakeValues = EasyMock.createNiceMock(clazz);
+    propertyValues.clear();
+    testProperties.clear();
+    for (Field field : clazz.getDeclaredFields()) {
+      final String propertyKey = getPropertyKey(field);
+      if (null != propertyKey) {
+        field.setAccessible(true);
+        if (field.getType().isAssignableFrom(String.class)) {
+          propertyValues.put(propertyKey, UUID.randomUUID().toString());
+        } else {
+          propertyValues.put(propertyKey, field.get(fakeValues).toString());
+        }
+      }
+    }
+    testProperties.putAll(System.getProperties());
+    testProperties.putAll(propertyValues);
+    injector = Initialization.makeInjectorWithModules(
+        GuiceInjectors.makeStartupInjector(),
+        ImmutableList.<Object>of(simpleJsonConfigModule)
+    );
+    configurator = injector.getBinding(JsonConfigurator.class).getProvider().get();
+    configProvider = JsonConfigProvider.of(configPrefix, clazz);
+  }
+
+  @Test
+  public final void simpleInjectionTest()
+      throws IllegalAccessException, NoSuchMethodException, InvocationTargetException
+  {
+    configProvider.inject(testProperties, configurator);
+    validateEntries(configProvider.get().get());
+    Assert.assertEquals(propertyValues.size(), assertions);
+  }
+
+
+}

server/src/test/java/io/druid/initialization/ZkPathsConfigTest.java

@@ -0,0 +1,75 @@
+/*
+ * Druid - a distributed column store.
+ * Copyright (C) 2012, 2013, 2014  Metamarkets Group Inc.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+ */
+
+package io.druid.initialization;
+
+import com.fasterxml.jackson.databind.ObjectMapper;
+import com.google.inject.Key;
+import io.druid.guice.JsonConfigProvider;
+import io.druid.guice.JsonConfigTesterBase;
+import io.druid.guice.JsonConfigurator;
+import io.druid.guice.annotations.Json;
+import io.druid.server.initialization.ZkPathsConfig;
+import org.apache.curator.utils.ZKPaths;
+import org.junit.Assert;
+import org.junit.Test;
+
+import java.io.IOException;
+import java.lang.reflect.InvocationTargetException;
+import java.util.UUID;
+
+/**
+ *
+ */
+public class ZkPathsConfigTest extends JsonConfigTesterBase<ZkPathsConfig>
+{
+  @Test
+  public void testOverrideBaseOnlyConfig()
+      throws IllegalAccessException, NoSuchMethodException, InvocationTargetException, IOException
+  {
+    JsonConfigurator configurator = injector.getBinding(JsonConfigurator.class).getProvider().get();
+
+    JsonConfigProvider<ZkPathsConfig> zkPathsConfig = JsonConfigProvider.of(configPrefix, ZkPathsConfig.class);
+    testProperties.clear();
+    String base = UUID.randomUUID().toString();
+    testProperties.put(String.format("%s.base", configPrefix), base);
+    zkPathsConfig.inject(testProperties, configurator);
+
+    propertyValues.clear();
+    propertyValues.put(String.format("%s.base", configPrefix), base);
+    propertyValues.put(String.format("%s.propertiesPath", configPrefix), ZKPaths.makePath(base, "properties"));
+    propertyValues.put(String.format("%s.announcementsPath", configPrefix), ZKPaths.makePath(base, "announcements"));
+    propertyValues.put(String.format("%s.servedSegmentsPath", configPrefix), ZKPaths.makePath(base, "servedSegments"));
+    propertyValues.put(String.format("%s.liveSegmentsPath", configPrefix), ZKPaths.makePath(base, "segments"));
+    propertyValues.put(String.format("%s.coordinatorPath", configPrefix), ZKPaths.makePath(base, "coordinator"));
+    propertyValues.put(String.format("%s.loadQueuePath", configPrefix), ZKPaths.makePath(base, "loadQueue"));
+    propertyValues.put(String.format("%s.connectorPath", configPrefix), ZKPaths.makePath(base, "connector"));
+
+    ZkPathsConfig zkPathsConfigObj = zkPathsConfig.get().get();
+    validateEntries(zkPathsConfigObj);
+    Assert.assertEquals(propertyValues.size(), assertions);
+
+    ObjectMapper jsonMapper = injector.getProvider(Key.get(ObjectMapper.class, Json.class)).get();
+    String jsonVersion = jsonMapper.writeValueAsString(zkPathsConfigObj);
+
+    ZkPathsConfig zkPathsConfigObjDeSer = jsonMapper.readValue(jsonVersion, ZkPathsConfig.class);
+
+    Assert.assertEquals(zkPathsConfigObj, zkPathsConfigObjDeSer);
+  }
+}

server/src/test/java/io/druid/server/bridge/DruidClusterBridgeTest.java

@@ -90,12 +90,6 @@ public class DruidClusterBridgeTest
     ObjectMapper jsonMapper = new DefaultObjectMapper();
     DruidClusterBridgeConfig config = new DruidClusterBridgeConfig()
     {
-      @Override
-      public String getTier()
-      {
-        return DruidServer.DEFAULT_TIER;
-      }
-
       @Override
       public Duration getStartDelay()
       {
@@ -107,18 +101,6 @@ public class DruidClusterBridgeTest
       {
         return new Duration(Long.MAX_VALUE);
       }
-
-      @Override
-      public String getBrokerServiceName()
-      {
-        return "testz0rz";
-      }
-
-      @Override
-      public int getPriority()
-      {
-        return 0;
-      }
     };
 
     ScheduledExecutorFactory factory = ScheduledExecutors.createFactory(new Lifecycle());
@@ -134,7 +116,7 @@ public class DruidClusterBridgeTest
     ZkPathsConfig zkPathsConfig = new ZkPathsConfig()
     {
       @Override
-      public String getZkBasePath()
+      public String getBase()
       {
         return "/druid";
       }
@@ -195,6 +177,8 @@ public class DruidClusterBridgeTest
     DruidClusterBridge bridge = new DruidClusterBridge(
         jsonMapper,
         config,
+        zkPathsConfig,
+        metadata,
         factory,
         me,
         localCf,

server/src/test/java/io/druid/server/coordination/ZkCoordinatorTest.java

@@ -101,7 +101,7 @@ public class ZkCoordinatorTest extends CuratorTestBase
     final ZkPathsConfig zkPaths = new ZkPathsConfig()
     {
       @Override
-      public String getZkBasePath()
+      public String getBase()
       {
         return "/druid";
       }

server/src/test/java/io/druid/server/coordination/coordination/BatchDataSegmentAnnouncerTest.java

@@ -107,7 +107,7 @@ public class BatchDataSegmentAnnouncerTest
         new ZkPathsConfig()
         {
           @Override
-          public String getZkBasePath()
+          public String getBase()
           {
             return testBasePath;
           }

server/src/test/java/io/druid/server/coordinator/DruidCoordinatorTest.java

@@ -99,7 +99,7 @@ public class DruidCoordinatorTest
         {
 
           @Override
-          public String getZkBasePath()
+          public String getBase()
           {
             return "";
           }

services/src/main/java/io/druid/cli/CliBridge.java

@@ -109,7 +109,7 @@ public class CliBridge extends ServerRunnable
                                        .retryPolicy(new BoundedExponentialBackoffRetry(1000, 45000, 30))
                                        .compressionProvider(
                                            new PotentiallyGzippedCompressionProvider(
-                                               bridgeCuratorConfig.enableCompression()
+                                               bridgeCuratorConfig.getEnableCompression()
                                            )
                                        )
                                        .build();