Zookeeper Operation Tool Class

Package Com.carelink.rpc.registry.client.util;import Java.net.inetaddress;import java.net.UnknownHostException; Import Java.util.list;import Java.util.map;import Java.util.concurrent.executorservice;import Java.util.concurrent.executors;import Org.apache.curator.framework.curatorframework;import Org.apache.curator.framework.curatorframeworkfactory;import Org.apache.curator.framework.api.GetChildrenBuilder ; Import Org.apache.curator.framework.api.getdatabuilder;import Org.apache.curator.framework.recipes.cache.pathchildrencache;import Org.apache.curator.framework.recipes.cache.pathchildrencachelistener;import Org.apache.curator.framework.recipes.cache.pathchildrencache.startmode;import Org.apache.curator.framework.state.connectionstate;import Org.apache.curator.framework.state.connectionstatelistener;import Org.apache.curator.retry.retryntimes;import Org.apache.curator.utils.zkpaths;import Org.apache.zookeeper.createmode;import Org.apache.zookeeper.data.Stat; Import Com.carelink.rpc.registRy.client.zkclient;import Com.carelink.rpc.registry.client.zkconfig;import Com.carelink.rpc.registry.client.factory.zkclientservicefactory;import Com.google.common.base.charsets;import Com.google.common.base.objects;import Com.google.common.base.strings;import Com.google.common.collect.Maps; public class Rpcregisteryservice {public static final int PROCESS = Runtime.getruntime (). Availableprocessors ();p rivate Rpcregisteryservice () {}private static class Singletonholder {static final Rpcregisteryservice instance = new Rpcregister Yservice ();} public static Rpcregisteryservice instance () {return singletonholder.instance;} Private Curatorframework zkclient = Null;public curatorframework getzkclient () {return zkclient;} private void Setzkclient (Curatorframework zkclient) {this.zkclient = zkclient;} /** * Connect ZK Create initial * * @param address * address * @param timeout * Time Out * @param namespace * Name empty * @param Group * Group * @param groupval * Group node value * @param noDe * node * @param nodeval * node value */public void Connectzookeeper (string address, int timeout, string na Mespace, String group, String groupval,string node, string nodeval) {if (getzkclient ()! = null) {return;} Curatorframeworkfactory.builder Builder = Curatorframeworkfactory.builder (); builder.connectstring (address). CONNECTIONTIMEOUTMS (timeout). SESSIONTIMEOUTMS (timeout). Retrypolicy (New Retryntimes (Integer.max_value,)); if ( ! Strings.isnullorempty (namespace)) {Builder.namespace (namespace);} Setzkclient (Builder.build ()); Rpcconnectionstatelistener listener = new Rpcconnectionstatelistener (group, Groupval, node, nodeval); Getzkclient (). Getconnectionstatelistenable (). AddListener (listener); Getzkclient (). Start ();//inject Startregisterserver (group, Groupval, node, nodeval);} private void Startregisterserver (string group, string Groupval, String node, string nodeval) {Registergroup (group, GROUPV AL); Registernode (Group, node, nodeval);} public boolean Registergroup (string group, string Groupval) {return CreateNode ("/" + Group, Groupval, createmode.persistent);//Create a persistent}public boolean registernode (String g  Roup, String node, string nodeval) {return CreateNode ("/" + Group + "/" + node, nodeval, createmode.ephemeral_sequential); Create temporary}//set path change listen public void Listenerpathchildren (String Group,pathchildrencachelistener listener) throws Exception {Executorservice pool = executors.newfixedthreadpool (PROCESS * 2); @SuppressWarnings ("Resource") Pathchildrencache Childrencache = new Pathchildrencache (Getzkclient (), "/" + group, True); Childrencache.start (startmode.post_ initialized_event); childrencache.getlistenable (). AddListener (listener, pool);} /** * Create node * * @param nodeName * @param value * @param createmode * @return * @throws Exception */public boolean Createno De (string nodeName, String value, Createmode Createmode) {Boolean suc = False;if (getzkclient () = = null) {return suc;} try {stat stat = getzkclient (). Checkexists (). Forpath (NodeName); if (Stat = = null) {String Opresult = The null;//node determines that the value is not NULL if (Strings.isnullorempty (value)) {Opresult = Getzkclient (). Create (). creatingparentsifneeded (). Withmode (Createmode). Forpath (NodeName);} else {Opresult = Getzkclient (). Create (). creatingparentsifneeded (). Withmode (Createmode). Forpath (NodeName, Value.getbytes (Charsets.utf_8));} suc = Objects.equal (NodeName, Opresult);}} catch (Exception e) {System.out.println ("Create node fail! Path: "+ NodeName +" value: "+ Value +" Createmode: "+ createmode.name ()); E.printstacktrace (); return suc;} return suc;} public void Destory () {if (getzkclient () ==null) {return;} Getzkclient (). Close ();} /** * Remove Node * * @param node * @return */public boolean Deletenode (String node) {if (getzkclient () = = null) {return false;} try {stat stat = getzkclient (). Checkexists (). Forpath (node); if (Stat! = null) {getzkclient (). Delete (). Deletingchildrenifneeded (). Forpath (node);} return true;} catch (Exception e) {System.out.println ("Delete node fail! Path: "+ node"; return false;}} /** * Gets the child node path and value under the specified node * @param nodE * @return */public map<string, string> getchildrendetail (String node) {if (getzkclient () = = null) {return null;} map<string, string> map = Maps.newhashmap (); try {getchildrenbuilder childrenbuilder = Getzkclient (). GetChildren ( ); list<string> children = childrenbuilder.forpath (node);  Getdatabuilder Databuilder = Getzkclient (). GetData (); if (children! = null) {for (string child:children) {string Proppath = Zkpaths.makepath (node, child); Map.put (Child, New String (Databuilder.forpath (Proppath), charsets.utf_8));}}} catch (Exception e) {System.out.println ("Get node Chilren list fail! Path: "+ node"; return null;} return map;} Class Rpcconnectionstatelistener implements Connectionstatelistener{private String Group; @SuppressWarnings ("Unused" ) private string Groupval;private string Node;private string Nodeval;public rpcconnectionstatelistener (string group, String groupval,string node,string nodeval) {this.groupval = Groupval;this.group = Group;this.node = Node;this.nodeVal = n OdevAl;} @Overridepublic void statechanged (Curatorframework CF, ConnectionState State) {if (state = = Connectionstate.lost) {// Re-registering while (true) {//only need to register the node, the group is already persistent//if (Registernode (Group, node, nodeval)) {break;}}}} Gets the native ippublic static string Getlocalhost (String type) {InetAddress addr = null;try {addr = Inetaddress.getlocalhost (); ("Address". Equals (Type)) {return Addr.gethostname (). ToString ();//Gets the native name}return addr.gethostaddress (). ToString ();//Get Native IP} catch ( Unknownhostexception e) {e.printstacktrace (); return "";}} public static void Main (string[] args) throws Exception {String address = " 192.168.200.34:2181,192.168.200.44:2181,192.168.200.64:2181 "; System.out.println (Zkconfig.forview ()); System.out.println (getlocalhost ("IP")); Zkclient.startzkregistery (address,5000); int i = 0;while (true) {try {System.out.println ( Zkclientservicefactory.getrpcclientservcie (0). Getserversbygroup (Zkconfig.getzkservergroup ()). Size ()); System.out.println (Zkclientservicefactory.getrpcclientservcie (0). Getserversbygroup (ZkconFig.getzkservergroup ())); Thread.Sleep (5000);} catch (Interruptedexception e) {e.printstacktrace ();} I++;if (i>10000) {break;}}}
}

Package Com.carelink.rpc.registry.server.util;import Java.net.inetaddress;import java.net.UnknownHostException; Import Java.util.list;import Java.util.map;import Org.apache.curator.framework.curatorframework;import Org.apache.curator.framework.curatorframeworkfactory;import Org.apache.curator.framework.api.GetChildrenBuilder ; Import Org.apache.curator.framework.api.getdatabuilder;import Org.apache.curator.framework.state.connectionstate;import Org.apache.curator.framework.state.connectionstatelistener;import Org.apache.curator.retry.retryntimes;import Org.apache.curator.utils.zkpaths;import Org.apache.zookeeper.createmode;import Org.apache.zookeeper.data.Stat; Import Com.carelink.rpc.registry.server.zkconfig;import Com.carelink.rpc.registry.server.zkservice;import Com.google.common.base.charsets;import Com.google.common.base.objects;import com.google.common.base.Strings; Import Com.google.common.collect.maps;public class Rpcregisteryservice {private Rpcregisteryservice () {}private Static CLass Singletonholder {static final Rpcregisteryservice instance = new Rpcregisteryservice ();} public static Rpcregisteryservice instance () {return singletonholder.instance;} Private Curatorframework zkclient = null;private curatorframework getzkclient () {return zkclient;} private void Setzkclient (Curatorframework zkclient) {this.zkclient = zkclient;} /** * Connect ZK Create initial * * @param address * address * @param timeout * Time Out * @param namespace * Name empty            * @param Group * Group * @param groupval * Group node values * @param node * nodes * @param nodeval * Node value */public void Connectzookeeper (string address, int timeout, string namespace, String group, string Groupval,stri NG node, String nodeval) {if (getzkclient () = null) {return;} Curatorframeworkfactory.builder Builder = Curatorframeworkfactory.builder ();//Exponentialbackoffretry: Retry the specified number of times, And the time to pause between retries increases gradually.//Retryntimes: Specifies the retry policy for the maximum number of retries//Retryonetime: Retry only//retryuntilelapsed: Retry until the specified time is reached Builder.conNectstring (address). CONNECTIONTIMEOUTMS (timeout). SESSIONTIMEOUTMS (timeout). Retrypolicy (New Retryntimes ( Integer.max_value)); if (! Strings.isnullorempty (namespace)) {Builder.namespace (namespace);} Setzkclient (Builder.build ()); Rpcconnectionstatelistener listener = new Rpcconnectionstatelistener (group, Groupval, node, nodeval); Getzkclient (). Getconnectionstatelistenable (). AddListener (Listener), Getzkclient (). Start ();//Injection Service Startregisterserver (group, Groupval, node, nodeval);} private void Startregisterserver (string group, string Groupval, String node, string nodeval) {Registergroup (group, GROUPV AL); Registernode (Group, node, nodeval);} public boolean Registergroup (string group, string groupval) {return CreateNode ("/" + Group, Groupval, Createmode.persiste  NT);//Create Persistent}public boolean Registernode (string group, String node, string nodeval) {return CreateNode ("/" + Group + "/" + node, nodeval, createmode.ephemeral_sequential); Create a temporary}/** * Create node * * @param nodeName * @param value * @param creAtemode * @return * @throws Exception */public boolean createnode (String nodeName, String value, Createmode createmode) {b Oolean suc = false;if (getzkclient () = = null) {return suc;} try {stat stat = getzkclient (). Checkexists (). Forpath (NodeName); if (Stat = = null) {String Opresult = null;//node determines that the value is not NULL if (S Trings.isnullorempty (value)) {Opresult = Getzkclient (). Create (). creatingparentsifneeded (). Withmode (Createmode). Forpath (nodeName);} else {Opresult = Getzkclient (). Create (). creatingparentsifneeded (). Withmode (Createmode). Forpath (NodeName, Value.getbytes (Charsets.utf_8));} suc = Objects.equal (NodeName, Opresult);}} catch (Exception e) {System.out.println ("Create node fail! Path: "+ NodeName +" value: "+ Value +" Createmode: "+ createmode.name ()); E.printstacktrace (); return suc;} return suc;} public void Destory () {if (getzkclient () ==null) {return;} Getzkclient (). Close ();} /** * Remove Node * * @param node * @return */public boolean Deletenode (String node) {if (getzkclient () = = null) {return false;} TRY {Stat stat = getzkclient (). Checkexists (). Forpath (node); if (Stat! = null) {getzkclient (). Delete (). Deletingchildrenifneeded (). Forpath (node);} return true;} catch (Exception e) {System.out.println ("Delete node fail! Path: "+ node"; return false;}} /** * Gets the child node path and value under the specified node * @param node * @return */public map<string, string> getchildrendetail (String node) {if (Getzk Client () = = null) {return null;} map<string, string> map = Maps.newhashmap (); try {getchildrenbuilder childrenbuilder = Getzkclient (). GetChildren ( ); list<string> children = childrenbuilder.forpath (node);  Getdatabuilder Databuilder = Getzkclient (). GetData (); if (children! = null) {for (string child:children) {string Proppath = Zkpaths.makepath (node, child); Map.put (Child, New String (Databuilder.forpath (Proppath), charsets.utf_8));}}} catch (Exception e) {System.out.println ("Get node Chilren list fail! Path: "+ node"; return null;} return map;} Class Rpcconnectionstatelistener implements Connectionstatelistener{private STring Group; @SuppressWarnings ("unused") private string Groupval;private string Node;private string nodeval;public Rpcconnectionstatelistener (String group, string groupval,string node,string nodeval) {this.groupval = Groupval; This.group = Group;this.node = Node;this.nodeval = Nodeval;} @Overridepublic void statechanged (Curatorframework CF, ConnectionState State) {if (state = = Connectionstate.lost) {// Re-registering the service while (true) {//only need to register the node, the group is already persistent if (Registernode (Group, node, nodeval)) {break;}}}} public static string Getlocalhost (String type) {InetAddress addr = null;try {addr = Inetaddress.getlocalhost (); Address ". Equals (Type)" {return Addr.gethostname (). ToString ();//Gets the native name}return addr.gethostaddress (). ToString ();/ Get native IP} catch (Unknownhostexception e) {e.printstacktrace (); return "";}} public static void Main (string[] args) {zkconfig.readconfig (); System.out.println (Zkconfig.forview ()); System.out.println (getlocalhost ("IP")); Zkservice.startzkregistery (); int i = 0;while (true) {try {thread.sleep);} CATCH (interruptedexception e) {e.printstacktrace ();} I++;if (i>10) {break;}} Zkservice.stopzkregistery ();}}

Zookeeper Operation Tool Class