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SearchScrollRequest.java
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SearchScrollRequest.java
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/*
* Licensed to Elasticsearch under one or more contributor
* license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright
* ownership. Elasticsearch licenses this file to you under
* the Apache License, Version 2.0 (the "License"); you may
* not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
package org.elasticsearch.action.search;
import org.elasticsearch.Version;
import org.elasticsearch.action.ActionRequest;
import org.elasticsearch.action.ActionRequestValidationException;
import org.elasticsearch.common.io.stream.StreamInput;
import org.elasticsearch.common.io.stream.StreamOutput;
import org.elasticsearch.common.unit.TimeValue;
import org.elasticsearch.search.Scroll;
import java.io.IOException;
import static org.elasticsearch.action.ValidateActions.addValidationError;
import static org.elasticsearch.search.Scroll.readScroll;
/**
*
*/
public class SearchScrollRequest extends ActionRequest<SearchScrollRequest> {
private String scrollId;
private Scroll scroll;
public SearchScrollRequest() {
}
public SearchScrollRequest(String scrollId) {
this.scrollId = scrollId;
}
@Override
public ActionRequestValidationException validate() {
ActionRequestValidationException validationException = null;
if (scrollId == null) {
validationException = addValidationError("scrollId is missing", validationException);
}
return validationException;
}
/**
* The scroll id used to scroll the search.
*/
public String scrollId() {
return scrollId;
}
public SearchScrollRequest scrollId(String scrollId) {
this.scrollId = scrollId;
return this;
}
/**
* If set, will enable scrolling of the search request.
*/
public Scroll scroll() {
return scroll;
}
/**
* If set, will enable scrolling of the search request.
*/
public SearchScrollRequest scroll(Scroll scroll) {
this.scroll = scroll;
return this;
}
/**
* If set, will enable scrolling of the search request for the specified timeout.
*/
public SearchScrollRequest scroll(TimeValue keepAlive) {
return scroll(new Scroll(keepAlive));
}
/**
* If set, will enable scrolling of the search request for the specified timeout.
*/
public SearchScrollRequest scroll(String keepAlive) {
return scroll(new Scroll(TimeValue.parseTimeValue(keepAlive, null)));
}
@Override
public void readFrom(StreamInput in) throws IOException {
super.readFrom(in);
if (in.getVersion().before(Version.V_1_2_0)) {
in.readByte(); // backward comp. for operation threading
}
scrollId = in.readString();
if (in.readBoolean()) {
scroll = readScroll(in);
}
}
@Override
public void writeTo(StreamOutput out) throws IOException {
super.writeTo(out);
if (out.getVersion().before(Version.V_1_2_0)) {
out.writeByte((byte) 2); // operation threading
}
out.writeString(scrollId);
if (scroll == null) {
out.writeBoolean(false);
} else {
out.writeBoolean(true);
scroll.writeTo(out);
}
}
}