SOLR-4498: Add list command to ZkCLI that prints out the contents of ZooKeeper.

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/trunk@1449578 13f79535-47bb-0310-9956-ffa450edef68

solr/CHANGES.txt

@@ -81,6 +81,9 @@ New Features
 * SOLR-4488: Return slave replication details for a master if the master has
   also acted like a slave. (Mark Miller)
 
+* SOLR-4498: Add list command to ZkCLI that prints out the contents of 
+  ZooKeeper. (Roman Shaposhnik via Mark Miller)
+
 Bug Fixes
 ----------------------
 

solr/core/src/java/org/apache/solr/cloud/ZkCLI.java

@@ -58,6 +58,7 @@ public class ZkCLI {
   private static final String UPCONFIG = "upconfig";
   private static final String COLLECTION = "collection";
   private static final String CLEAR = "clear";
+  private static final String LIST = "list";
   private static final String CMD = "cmd";
   
   /**
@@ -85,7 +86,7 @@ public class ZkCLI {
         .hasArg(true)
         .withDescription(
             "cmd to run: " + BOOTSTRAP + ", " + UPCONFIG + ", " + DOWNCONFIG
-                + ", " + LINKCONFIG + ", " + MAKEPATH + ", "+ CLEAR).create(CMD));
+                + ", " + LINKCONFIG + ", " + MAKEPATH + ", "+ LIST + ", " +CLEAR).create(CMD));
 
     Option zkHostOption = new Option("z", ZKHOST, true,
         "ZooKeeper host address");
@@ -129,6 +130,7 @@ public class ZkCLI {
         System.out.println("zkcli.sh -zkhost localhost:9983 -cmd " + LINKCONFIG + " -" + COLLECTION + " collection1" + " -" + CONFNAME + " myconf");
         System.out.println("zkcli.sh -zkhost localhost:9983 -cmd " + MAKEPATH + " /apache/solr");
         System.out.println("zkcli.sh -zkhost localhost:9983 -cmd " + CLEAR + " /solr");
+        System.out.println("zkcli.sh -zkhost localhost:9983 -cmd " + LIST);
         return;
       }
       
@@ -216,6 +218,8 @@ public class ZkCLI {
           String confName = line.getOptionValue(CONFNAME);
           
           ZkController.linkConfSet(zkClient, collection, confName);
+        } else if (line.getOptionValue(CMD).equals(LIST)) {
+          zkClient.printLayoutToStdOut();
         } else if (line.getOptionValue(CMD).equals(CLEAR)) {
           List arglist = line.getArgList();
           if (arglist.size() != 1) {

solr/core/src/test/org/apache/solr/cloud/ZkCLITest.java

@@ -121,6 +121,14 @@ public class ZkCLITest extends SolrTestCaseJ4 {
     assertTrue(zkClient.exists("/path/mynewpath", true));
   }
   
+  @Test
+  public void testList() throws Exception {
+    zkClient.makePath("/test", true);
+    String[] args = new String[] {"-zkhost", zkServer.getZkAddress(), "-cmd",
+        "list"};
+    ZkCLI.main(args);
+  }
+  
   @Test
   public void testUpConfigLinkConfigClearZk() throws Exception {
     // test upconfig