ES learning-java Operation 2.4. version 0

Package Esjava;

Import org.elasticsearch.action.bulk.*;
Import Org.elasticsearch.action.delete.DeleteRequest;
Import Org.elasticsearch.action.delete.DeleteResponse;
Import Org.elasticsearch.action.fieldstats.FieldStats;
Import Org.elasticsearch.action.get.GetRequestBuilder;
Import Org.elasticsearch.action.get.GetResponse;
Import Org.elasticsearch.action.get.MultiGetItemResponse;
Import Org.elasticsearch.action.get.MultiGetResponse;
Import Org.elasticsearch.action.index.IndexRequest;
Import Org.elasticsearch.action.index.IndexResponse;
Import Org.elasticsearch.action.update.UpdateRequest;
Import Org.elasticsearch.action.update.UpdateResponse;
Import org.elasticsearch.client.transport.TransportClient;
Import Org.elasticsearch.cluster.node.DiscoveryNode;
Import org.elasticsearch.common.settings.Settings;
Import org.elasticsearch.common.transport.InetSocketTransportAddress;
Import Org.elasticsearch.common.unit.ByteSizeUnit;
Import Org.elasticsearch.common.unit.ByteSizeValue;
Import Org.elasticsearch.common.unit.TimeValue;
Import Org.elasticsearch.common.xcontent.XContentBuilder;
Import Org.elasticsearch.common.xcontent.XContentFactory;

Import java.net.InetAddress;
Import java.net.InetSocketAddress;
Import java.net.UnknownHostException;
Import Java.util.HashMap;
Import java.util.List;
Import Java.util.Map;
Import Java.util.concurrent.TimeUnit;

/**
* Created by Zhuzhiqiang on 2018/7/28.
*/
public class Esutile {
static Transportclient client;
Private Indexrequest source;
static {
map<string, string> map = new hashmap<string, string> ();
Map.put ("Cluster.name", "Es-cluster");
Settings.builder Settings = Settings.builder (). put (map);
try {
Client = Transportclient.builder (). settings (Settings). Build ()
. addtransportaddress (New Inetsockettransportaddress (Inetaddress.getbyname ("192.168.0.108"), Integer.parseint (" 9300 ")));
} catch (Unknownhostexception e) {
E.printstacktrace ();
}
}

public static void TestInfo () {
list<discoverynode> nodes = Client.connectednodes ();
for (Discoverynode node:nodes) {
System.out.println (Node.gethostaddress ());
}
}

/**
* Organize JSON string, mode 1, direct stitching
*/
public static String CreateJson1 () {
String json = "{" +
"\" User\ ": \" kimchy\ "," +
"\" postdate\ ": \" 2013-01-30\ "," +
"\" message\ ": \" trying out elasticsearch\ "" +
"}";
return JSON;
}

/**
* Create JSON with map
*/
public static map<string, object> CreateJson2 () {
map<string,object> json = new hashmap<string, object> ();
Json.put ("User", "kimchyy");
Json.put ("Postdate", New Fieldstats.date ());
Json.put ("message", "trying out elasticsearch update");
return JSON;
}

Public Xcontentbuilder CreateJson4 () throws Exception {
Create a JSON object, one of the ways to create JSON
Xcontentbuilder Source = Xcontentfactory.jsonbuilder ()
. StartObject ()
. Field ("User", "Kimchy")
. Field ("Postdate", New Fieldstats.date ())
. Field ("Message", "trying to out ElasticSearch")
. EndObject ();
return source;
}

Add a document

public static void Creat () throws Exception {
String Json1 = CreateJson1 ();
Stored in the JSON in the index
Indexresponse response = Client.prepareindex ("Twitter", "tweet", "4"). SetSource (Json1). get ();
Results obtained
String index = Response.getindex ();
String type = Response.gettype ();
String id = response.getid ();
Long Version = Response.getversion ();
Boolean created = Response.iscreated ();
SYSTEM.OUT.PRINTLN (Index + ":" + Type + ":" + ID + ":" + version + ":" + created);
}

Update document

public static void Update () throws Exception {
Updaterequest updaterequest=new updaterequest ();
Updaterequest.index ("Twitter");
Updaterequest.type ("tweet");
Updaterequest.id ("3");
Updaterequest.doc (Xcontentfactory.jsonbuilder ()
. StartObject ()
Add to fields you don't have, replace existing fields
. Field ("Gender", "MALEWW"). EndObject ());
Updateresponse updateresponse = client.update (updaterequest). get ();
System.out.println (Updateresponse.getindex () + ":" +updateresponse.gettype () +
":" +updateresponse.getid () + ":" +updateresponse.getversion () + ":" +updateresponse.iscreated ()
);

}

Update document

public static void Updateandadd () throws Exception {
Set query criteria, add takes effect if not found
Indexrequest indexrequest = new Indexrequest ("Twitter", "tweet", "5")
. Source (Xcontentfactory.jsonbuilder ()
. StartObject ()
. Field ("Gender", "MALEWWQ")
. EndObject ());
Updaterequest updaterequest=new updaterequest ();
Updaterequest.index ("Twitter");
Updaterequest.type ("tweet");
Updaterequest.id ("5");
Updaterequest.doc (Xcontentfactory.jsonbuilder ()
. StartObject ()
Add to fields you don't have, replace existing fields
. Field ("User", "Zzq"). EndObject ());
Updateresponse updateresponse = client.update (Updaterequest.upsert (indexrequest)). get ();
System.out.println (Updateresponse.getindex () + ":" +updateresponse.gettype () +
":" +updateresponse.getid () + ":" +updateresponse.getversion () + ":" +updateresponse.iscreated ()
);

}


Delete
public static void Delete () throws Exception {
Deleteresponse deleteresponse = client.preparedelete ("Twitter", "tweet", "4"). get ();
System.out.println (Deleteresponse.getindex () + ":" +deleteresponse.gettype () +
":" +deleteresponse.getid () + ":" +deleteresponse.getversion () + ":" +deleteresponse.tostring ()
);

}

Inquire

public static void Search () throws exception{
GetResponse GetResponse = client.prepareget ("Twitter", "tweet", "3"). get ();
System.out.println (Getresponse.getsourceasstring ());


}
/**
* Test Multi Get API
* Get from different index, type, and ID
*/

public static void Testmultiget () {
Multigetresponse multigetresponse = Client.preparemultiget ()
. Add ("Twitter", "tweet", "1")
. Add ("Twitter", "tweet", "1", "3", "4")
. get ();

for (Multigetitemresponse itemresponse:multigetresponse) {
GetResponse response = Itemresponse.getresponse ();
if (response.isexists ()) {
String sourceasstring = response.getsourceasstring ();
System.out.println (sourceasstring);
}
}
}


/**
* Bulk Batch Execution
* One query can update or delete multiple document
*/
    
public void Testbulk () throws Exception {
Bulkrequestbuilder bulkrequest = Client.preparebulk ();
Bulkrequest.add (Client.prepareindex ("Twitter", "tweet", "1")
. SetSource (Xcontentfactory.jsonbuilder ()
. StartObject ()
. Field ("User", "Kimchy")
. Field ("Postdate", New Fieldstats.date ())
. Field ("Message", "trying out Elasticsearch")
. EndObject ()));
Bulkrequest.add (Client.prepareindex ("Twitter", "tweet", "2")
. SetSource (Xcontentfactory.jsonbuilder ()
. StartObject ()
. Field ("User", "Kimchy")
. Field ("Postdate", New Fieldstats.date ())
. Field ("Message", "another Post")
. EndObject ()));
Bulkresponse response = Bulkrequest.get ();
System.out.println (Response.getheaders ());
}

/**
* Use bulk Processor
* @throws Exception
*/
   
public void Testbulkprocessor () throws Exception {
Create a Bulkporcessor object
Bulkprocessor bulkprocessor = bulkprocessor.builder (client, new Bulkprocessor.listener () {
public void Beforebulk (long paramlong, bulkrequest parambulkrequest) {
TODO auto-generated Method Stub
}

Execution when an error occurs
public void Afterbulk (long paramlong, Bulkrequest parambulkrequest, Throwable paramthrowable) {
TODO auto-generated Method Stub
}

public void Afterbulk (long paramlong, Bulkrequest parambulkrequest, Bulkresponse parambulkresponse) {
TODO auto-generated Method Stub
}
})
1w Request Execution once bulk
. Setbulkactions (10000)
1GB Data Refresh once bulk
. Setbulksize (New Bytesizevalue (1, BYTESIZEUNIT.GB))
Fixed 5s must be refreshed once
. Setflushinterval (Timevalue.timevalueseconds (5))
Number of concurrent requests, 0 not concurrent, 1 concurrent allow execution
. setconcurrentrequests (1)
Set Backoff, execute after 100ms, maximum request 3 times
. Setbackoffpolicy (
Backoffpolicy.exponentialbackoff (Timevalue.timevaluemillis (100), 3))
. build ();

Add a single request
Bulkprocessor.add (New Indexrequest ("Twitter", "tweet", "1"));
Bulkprocessor.add (New Deleterequest ("Twitter", "tweet", "2"));

Shut down
Bulkprocessor.awaitclose (ten, timeunit.minutes);
Or
Bulkprocessor.close ();
}
}

ES learning-java Operation 2.4. version 0