[SOLR-2638] A CoreContainer Plugin interface to create Container level Services

• Type: New Feature
• Status: Closed
• Priority: Major
• Resolution: Won't Fix
• Component/s: multicore
• Assignee: Noble Paul
• Reporter: Noble Paul
• Created: 06/Jul/11 09:37
• Updated: 05/Sep/14 23:13
• Resolved: 05/Sep/14 23:13

Description

It can help register services such as Zookeeper .

interface

public abstract class ContainerPlugin {
  /**Called before initializing any core.
   * @param container
   * @param attrs
   */
  public abstract void init(CoreContainer container, Map<String,String> attrs);

  /**Callback after all cores are initialized
   */
  public void postInit(){}

  /**Callback after each core is created, but before registration
   * @param core
   */
  public void onCoreCreate(SolrCore core){}

  /**Callback for server shutdown
   */
  public void shutdown(){}

}

It may be specified in solr.xml as

<solr>

  <plugin name="zk" class="solr.ZookeeperService" param1="val1" param2="val2" zkClientTimeout="8000"/>

  <cores adminPath="/admin/cores" defaultCoreName="collection1" host="127.0.0.1" hostPort="${hostPort:8983}" hostContext="solr" >
    <core name="collection1" shard="${shard:}" collection="${collection:collection1}" config="${solrconfig:solrconfig.xml}" instanceDir="."/>
  </cores>
</solr>