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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.bulk;
import org.elasticsearch.action.ActionRequest;
import org.elasticsearch.action.ActionRequestValidationException;
import org.elasticsearch.action.CompositeIndicesRequest;
import org.elasticsearch.action.IndicesRequest;
import org.elasticsearch.action.WriteConsistencyLevel;
import org.elasticsearch.action.delete.DeleteRequest;
import org.elasticsearch.action.index.IndexRequest;
import org.elasticsearch.action.update.UpdateRequest;
import org.elasticsearch.common.Nullable;
import org.elasticsearch.common.bytes.BytesArray;
import org.elasticsearch.common.bytes.BytesReference;
import org.elasticsearch.common.io.stream.StreamInput;
import org.elasticsearch.common.io.stream.StreamOutput;
import org.elasticsearch.common.lucene.uid.Versions;
import org.elasticsearch.common.unit.TimeValue;
import org.elasticsearch.common.xcontent.XContent;
import org.elasticsearch.common.xcontent.XContentFactory;
import org.elasticsearch.common.xcontent.XContentParser;
import org.elasticsearch.index.VersionType;
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;
import static org.elasticsearch.action.ValidateActions.addValidationError;
/**
* A bulk request holds an ordered {@link IndexRequest}s, {@link DeleteRequest}s and {@link UpdateRequest}s
* and allows to executes it in a single batch.
*
* Note that we only support refresh on the bulk request not per item.
* @see org.elasticsearch.client.Client#bulk(BulkRequest)
*/
public class BulkRequest extends ActionRequest<BulkRequest> implements CompositeIndicesRequest {
private static final int REQUEST_OVERHEAD = 50;
final List<ActionRequest> requests = new ArrayList<>();
List<Object> payloads = null;
protected TimeValue timeout = BulkShardRequest.DEFAULT_TIMEOUT;
private WriteConsistencyLevel consistencyLevel = WriteConsistencyLevel.DEFAULT;
private boolean refresh = false;
private long sizeInBytes = 0;
public BulkRequest() {
}
/**
* Creates a bulk request caused by some other request, which is provided as an
* argument so that its headers and context can be copied to the new request
*/
public BulkRequest(ActionRequest request) {
super(request);
}
/**
* Adds a list of requests to be executed. Either index or delete requests.
*/
public BulkRequest add(ActionRequest... requests) {
for (ActionRequest request : requests) {
add(request, null);
}
return this;
}
public BulkRequest add(ActionRequest request) {
return add(request, null);
}
/**
* Add a request to the current BulkRequest.
* @param request Request to add
* @param payload Optional payload
* @return the current bulk request
*/
public BulkRequest add(ActionRequest request, @Nullable Object payload) {
if (request instanceof IndexRequest) {
add((IndexRequest) request, payload);
} else if (request instanceof DeleteRequest) {
add((DeleteRequest) request, payload);
} else if (request instanceof UpdateRequest) {
add((UpdateRequest) request, payload);
} else {
throw new IllegalArgumentException("No support for request [" + request + "]");
}
return this;
}
/**
* Adds a list of requests to be executed. Either index or delete requests.
*/
public BulkRequest add(Iterable<ActionRequest> requests) {
for (ActionRequest request : requests) {
add(request);
}
return this;
}
/**
* Adds an {@link IndexRequest} to the list of actions to execute. Follows the same behavior of {@link IndexRequest}
* (for example, if no id is provided, one will be generated, or usage of the create flag).
*/
public BulkRequest add(IndexRequest request) {
return internalAdd(request, null);
}
public BulkRequest add(IndexRequest request, @Nullable Object payload) {
return internalAdd(request, payload);
}
BulkRequest internalAdd(IndexRequest request, @Nullable Object payload) {
requests.add(request);
addPayload(payload);
// lack of source is validated in validate() method
sizeInBytes += (request.source() != null ? request.source().length() : 0) + REQUEST_OVERHEAD;
return this;
}
/**
* Adds an {@link UpdateRequest} to the list of actions to execute.
*/
public BulkRequest add(UpdateRequest request) {
return internalAdd(request, null);
}
public BulkRequest add(UpdateRequest request, @Nullable Object payload) {
return internalAdd(request, payload);
}
BulkRequest internalAdd(UpdateRequest request, @Nullable Object payload) {
requests.add(request);
addPayload(payload);
if (request.doc() != null) {
sizeInBytes += request.doc().source().length();
}
if (request.upsertRequest() != null) {
sizeInBytes += request.upsertRequest().source().length();
}
if (request.script() != null) {
sizeInBytes += request.script().getScript().length() * 2;
}
return this;
}
/**
* Adds an {@link DeleteRequest} to the list of actions to execute.
*/
public BulkRequest add(DeleteRequest request) {
return add(request, null);
}
public BulkRequest add(DeleteRequest request, @Nullable Object payload) {
requests.add(request);
addPayload(payload);
sizeInBytes += REQUEST_OVERHEAD;
return this;
}
private void addPayload(Object payload) {
if (payloads == null) {
if (payload == null) {
return;
}
payloads = new ArrayList<>(requests.size() + 10);
// add requests#size-1 elements to the payloads if it null (we add for an *existing* request)
for (int i = 1; i < requests.size(); i++) {
payloads.add(null);
}
}
payloads.add(payload);
}
/**
* The list of requests in this bulk request.
*/
public List<ActionRequest> requests() {
return this.requests;
}
@Override
@SuppressWarnings("unchecked")
public List<? extends IndicesRequest> subRequests() {
List<IndicesRequest> indicesRequests = new ArrayList<>();
for (ActionRequest request : requests) {
assert request instanceof IndicesRequest;
indicesRequests.add((IndicesRequest) request);
}
return indicesRequests;
}
/**
* The list of optional payloads associated with requests in the same order as the requests. Note, elements within
* it might be null if no payload has been provided.
* <p>
* Note, if no payloads have been provided, this method will return null (as to conserve memory overhead).
*/
@Nullable
public List<Object> payloads() {
return this.payloads;
}
/**
* The number of actions in the bulk request.
*/
public int numberOfActions() {
return requests.size();
}
/**
* The estimated size in bytes of the bulk request.
*/
public long estimatedSizeInBytes() {
return sizeInBytes;
}
/**
* Adds a framed data in binary format
*/
public BulkRequest add(byte[] data, int from, int length) throws Exception {
return add(data, from, length, null, null);
}
/**
* Adds a framed data in binary format
*/
public BulkRequest add(byte[] data, int from, int length, @Nullable String defaultIndex, @Nullable String defaultType) throws Exception {
return add(new BytesArray(data, from, length), defaultIndex, defaultType);
}
/**
* Adds a framed data in binary format
*/
public BulkRequest add(BytesReference data, @Nullable String defaultIndex, @Nullable String defaultType) throws Exception {
return add(data, defaultIndex, defaultType, null, null, null, true);
}
/**
* Adds a framed data in binary format
*/
public BulkRequest add(BytesReference data, @Nullable String defaultIndex, @Nullable String defaultType, boolean allowExplicitIndex) throws Exception {
return add(data, defaultIndex, defaultType, null, null, null, allowExplicitIndex);
}
public BulkRequest add(BytesReference data, @Nullable String defaultIndex, @Nullable String defaultType, @Nullable String defaultRouting, @Nullable String[] defaultFields, @Nullable Object payload, boolean allowExplicitIndex) throws Exception {
XContent xContent = XContentFactory.xContent(data);
int line = 0;
int from = 0;
int length = data.length();
byte marker = xContent.streamSeparator();
while (true) {
int nextMarker = findNextMarker(marker, from, data, length);
if (nextMarker == -1) {
break;
}
line++;
// now parse the action
try (XContentParser parser = xContent.createParser(data.slice(from, nextMarker - from))) {
// move pointers
from = nextMarker + 1;
// Move to START_OBJECT
XContentParser.Token token = parser.nextToken();
if (token == null) {
continue;
}
assert token == XContentParser.Token.START_OBJECT;
// Move to FIELD_NAME, that's the action
token = parser.nextToken();
assert token == XContentParser.Token.FIELD_NAME;
String action = parser.currentName();
String index = defaultIndex;
String type = defaultType;
String id = null;
String routing = defaultRouting;
String parent = null;
String[] fields = defaultFields;
String timestamp = null;
TimeValue ttl = null;
String opType = null;
long version = Versions.MATCH_ANY;
VersionType versionType = VersionType.INTERNAL;
int retryOnConflict = 0;
// at this stage, next token can either be END_OBJECT (and use default index and type, with auto generated id)
// or START_OBJECT which will have another set of parameters
token = parser.nextToken();
if (token == XContentParser.Token.START_OBJECT) {
String currentFieldName = null;
while ((token = parser.nextToken()) != XContentParser.Token.END_OBJECT) {
if (token == XContentParser.Token.FIELD_NAME) {
currentFieldName = parser.currentName();
} else if (token.isValue()) {
if ("_index".equals(currentFieldName)) {
if (!allowExplicitIndex) {
throw new IllegalArgumentException("explicit index in bulk is not allowed");
}
index = parser.text();
} else if ("_type".equals(currentFieldName)) {
type = parser.text();
} else if ("_id".equals(currentFieldName)) {
id = parser.text();
} else if ("_routing".equals(currentFieldName) || "routing".equals(currentFieldName)) {
routing = parser.text();
} else if ("_parent".equals(currentFieldName) || "parent".equals(currentFieldName)) {
parent = parser.text();
} else if ("_timestamp".equals(currentFieldName) || "timestamp".equals(currentFieldName)) {
timestamp = parser.text();
} else if ("_ttl".equals(currentFieldName) || "ttl".equals(currentFieldName)) {
if (parser.currentToken() == XContentParser.Token.VALUE_STRING) {
ttl = TimeValue.parseTimeValue(parser.text(), null, currentFieldName);
} else {
ttl = new TimeValue(parser.longValue());
}
} else if ("op_type".equals(currentFieldName) || "opType".equals(currentFieldName)) {
opType = parser.text();
} else if ("_version".equals(currentFieldName) || "version".equals(currentFieldName)) {
version = parser.longValue();
} else if ("_version_type".equals(currentFieldName) || "_versionType".equals(currentFieldName) || "version_type".equals(currentFieldName) || "versionType".equals(currentFieldName)) {
versionType = VersionType.fromString(parser.text());
} else if ("_retry_on_conflict".equals(currentFieldName) || "_retryOnConflict".equals(currentFieldName)) {
retryOnConflict = parser.intValue();
} else if ("fields".equals(currentFieldName)) {
throw new IllegalArgumentException("Action/metadata line [" + line + "] contains a simple value for parameter [fields] while a list is expected");
} else {
throw new IllegalArgumentException("Action/metadata line [" + line + "] contains an unknown parameter [" + currentFieldName + "]");
}
} else if (token == XContentParser.Token.START_ARRAY) {
if ("fields".equals(currentFieldName)) {
List<Object> values = parser.list();
fields = values.toArray(new String[values.size()]);
} else {
throw new IllegalArgumentException("Malformed action/metadata line [" + line + "], expected a simple value for field [" + currentFieldName + "] but found [" + token + "]");
}
} else if (token != XContentParser.Token.VALUE_NULL) {
throw new IllegalArgumentException("Malformed action/metadata line [" + line + "], expected a simple value for field [" + currentFieldName + "] but found [" + token + "]");
}
}
} else if (token != XContentParser.Token.END_OBJECT) {
throw new IllegalArgumentException("Malformed action/metadata line [" + line + "], expected " + XContentParser.Token.START_OBJECT
+ " or " + XContentParser.Token.END_OBJECT + " but found [" + token + "]");
}
if ("delete".equals(action)) {
add(new DeleteRequest(index, type, id).routing(routing).parent(parent).version(version).versionType(versionType), payload);
} else {
nextMarker = findNextMarker(marker, from, data, length);
if (nextMarker == -1) {
break;
}
line++;
// order is important, we set parent after routing, so routing will be set to parent if not set explicitly
// we use internalAdd so we don't fork here, this allows us not to copy over the big byte array to small chunks
// of index request.
if ("index".equals(action)) {
if (opType == null) {
internalAdd(new IndexRequest(index, type, id).routing(routing).parent(parent).timestamp(timestamp).ttl(ttl).version(version).versionType(versionType)
.source(data.slice(from, nextMarker - from)), payload);
} else {
internalAdd(new IndexRequest(index, type, id).routing(routing).parent(parent).timestamp(timestamp).ttl(ttl).version(version).versionType(versionType)
.create("create".equals(opType))
.source(data.slice(from, nextMarker - from)), payload);
}
} else if ("create".equals(action)) {
internalAdd(new IndexRequest(index, type, id).routing(routing).parent(parent).timestamp(timestamp).ttl(ttl).version(version).versionType(versionType)
.create(true)
.source(data.slice(from, nextMarker - from)), payload);
} else if ("update".equals(action)) {
UpdateRequest updateRequest = new UpdateRequest(index, type, id).routing(routing).parent(parent).retryOnConflict(retryOnConflict)
.version(version).versionType(versionType)
.routing(routing)
.parent(parent)
.source(data.slice(from, nextMarker - from));
if (fields != null) {
updateRequest.fields(fields);
}
IndexRequest upsertRequest = updateRequest.upsertRequest();
if (upsertRequest != null) {
upsertRequest.timestamp(timestamp);
upsertRequest.ttl(ttl);
upsertRequest.version(version);
upsertRequest.versionType(versionType);
}
IndexRequest doc = updateRequest.doc();
if (doc != null) {
doc.timestamp(timestamp);
doc.ttl(ttl);
doc.version(version);
doc.versionType(versionType);
}
internalAdd(updateRequest, payload);
}
// move pointers
from = nextMarker + 1;
}
}
}
return this;
}
/**
* Sets the consistency level of write. Defaults to {@link org.elasticsearch.action.WriteConsistencyLevel#DEFAULT}
*/
public BulkRequest consistencyLevel(WriteConsistencyLevel consistencyLevel) {
this.consistencyLevel = consistencyLevel;
return this;
}
public WriteConsistencyLevel consistencyLevel() {
return this.consistencyLevel;
}
/**
* Should a refresh be executed post this bulk operation causing the operations to
* be searchable. Note, heavy indexing should not set this to <tt>true</tt>. Defaults
* to <tt>false</tt>.
*/
public BulkRequest refresh(boolean refresh) {
this.refresh = refresh;
return this;
}
public boolean refresh() {
return this.refresh;
}
/**
* A timeout to wait if the index operation can't be performed immediately. Defaults to <tt>1m</tt>.
*/
public final BulkRequest timeout(TimeValue timeout) {
this.timeout = timeout;
return this;
}
/**
* A timeout to wait if the index operation can't be performed immediately. Defaults to <tt>1m</tt>.
*/
public final BulkRequest timeout(String timeout) {
return timeout(TimeValue.parseTimeValue(timeout, null, getClass().getSimpleName() + ".timeout"));
}
public TimeValue timeout() {
return timeout;
}
private int findNextMarker(byte marker, int from, BytesReference data, int length) {
for (int i = from; i < length; i++) {
if (data.get(i) == marker) {
return i;
}
}
return -1;
}
@Override
public ActionRequestValidationException validate() {
ActionRequestValidationException validationException = null;
if (requests.isEmpty()) {
validationException = addValidationError("no requests added", validationException);
}
for (ActionRequest request : requests) {
// We first check if refresh has been set
if ((request instanceof DeleteRequest && ((DeleteRequest)request).refresh()) ||
(request instanceof UpdateRequest && ((UpdateRequest)request).refresh()) ||
(request instanceof IndexRequest && ((IndexRequest)request).refresh())) {
validationException = addValidationError("Refresh is not supported on an item request, set the refresh flag on the BulkRequest instead.", validationException);
}
ActionRequestValidationException ex = request.validate();
if (ex != null) {
if (validationException == null) {
validationException = new ActionRequestValidationException();
}
validationException.addValidationErrors(ex.validationErrors());
}
}
return validationException;
}
@Override
public void readFrom(StreamInput in) throws IOException {
super.readFrom(in);
consistencyLevel = WriteConsistencyLevel.fromId(in.readByte());
int size = in.readVInt();
for (int i = 0; i < size; i++) {
byte type = in.readByte();
if (type == 0) {
IndexRequest request = new IndexRequest();
request.readFrom(in);
requests.add(request);
} else if (type == 1) {
DeleteRequest request = new DeleteRequest();
request.readFrom(in);
requests.add(request);
} else if (type == 2) {
UpdateRequest request = new UpdateRequest();
request.readFrom(in);
requests.add(request);
}
}
refresh = in.readBoolean();
timeout = TimeValue.readTimeValue(in);
}
@Override
public void writeTo(StreamOutput out) throws IOException {
super.writeTo(out);
out.writeByte(consistencyLevel.id());
out.writeVInt(requests.size());
for (ActionRequest request : requests) {
if (request instanceof IndexRequest) {
out.writeByte((byte) 0);
} else if (request instanceof DeleteRequest) {
out.writeByte((byte) 1);
} else if (request instanceof UpdateRequest) {
out.writeByte((byte) 2);
}
request.writeTo(out);
}
out.writeBoolean(refresh);
timeout.writeTo(out);
}
}