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Elasticsearch subproject :core
/*
* 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;
import org.elasticsearch.action.support.replication.ReplicationOperation;
import org.elasticsearch.cluster.action.shard.ShardStateAction;
import org.elasticsearch.common.io.stream.StreamInput;
import org.elasticsearch.common.io.stream.StreamOutput;
import org.elasticsearch.common.io.stream.Writeable;
import org.elasticsearch.common.logging.LoggerMessageFormat;
import org.elasticsearch.common.xcontent.ToXContent;
import org.elasticsearch.common.xcontent.XContentBuilder;
import org.elasticsearch.index.Index;
import org.elasticsearch.index.shard.ShardId;
import org.elasticsearch.rest.RestStatus;
import org.elasticsearch.transport.TcpTransport;
import java.io.IOException;
import java.util.Arrays;
import java.util.Collections;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.Set;
import java.util.stream.Collectors;
import static java.util.Collections.unmodifiableMap;
import static org.elasticsearch.cluster.metadata.IndexMetaData.INDEX_UUID_NA_VALUE;
/**
* A base class for all elasticsearch exceptions.
*/
public class ElasticsearchException extends RuntimeException implements ToXContent, Writeable {
public static final Version UNKNOWN_VERSION_ADDED = Version.fromId(0);
/**
* Passed in the {@link Params} of {@link #toXContent(XContentBuilder, org.elasticsearch.common.xcontent.ToXContent.Params, Throwable)}
* to control if the {@code caused_by} element should render. Unlike most parameters to {@code toXContent} methods this parameter is
* internal only and not available as a URL parameter.
*/
public static final String REST_EXCEPTION_SKIP_CAUSE = "rest.exception.cause.skip";
/**
* Passed in the {@link Params} of {@link #toXContent(XContentBuilder, org.elasticsearch.common.xcontent.ToXContent.Params, Throwable)}
* to control if the {@code stack_trace} element should render. Unlike most parameters to {@code toXContent} methods this parameter is
* internal only and not available as a URL parameter. Use the {@code error_trace} parameter instead.
*/
public static final String REST_EXCEPTION_SKIP_STACK_TRACE = "rest.exception.stacktrace.skip";
public static final boolean REST_EXCEPTION_SKIP_STACK_TRACE_DEFAULT = true;
public static final boolean REST_EXCEPTION_SKIP_CAUSE_DEFAULT = false;
private static final String INDEX_HEADER_KEY = "es.index";
private static final String INDEX_HEADER_KEY_UUID = "es.index_uuid";
private static final String SHARD_HEADER_KEY = "es.shard";
private static final String RESOURCE_HEADER_TYPE_KEY = "es.resource.type";
private static final String RESOURCE_HEADER_ID_KEY = "es.resource.id";
private static final Map> ID_TO_SUPPLIER;
private static final Map, ElasticsearchExceptionHandle> CLASS_TO_ELASTICSEARCH_EXCEPTION_HANDLE;
private final Map> headers = new HashMap<>();
/**
* Construct a ElasticsearchException with the specified cause exception.
*/
public ElasticsearchException(Throwable cause) {
super(cause);
}
/**
* Construct a ElasticsearchException with the specified detail message.
*
* The message can be parameterized using {} as placeholders for the given
* arguments
*
* @param msg the detail message
* @param args the arguments for the message
*/
public ElasticsearchException(String msg, Object... args) {
super(LoggerMessageFormat.format(msg, args));
}
/**
* Construct a ElasticsearchException with the specified detail message
* and nested exception.
*
* The message can be parameterized using {} as placeholders for the given
* arguments
*
* @param msg the detail message
* @param cause the nested exception
* @param args the arguments for the message
*/
public ElasticsearchException(String msg, Throwable cause, Object... args) {
super(LoggerMessageFormat.format(msg, args), cause);
}
public ElasticsearchException(StreamInput in) throws IOException {
super(in.readOptionalString(), in.readException());
readStackTrace(this, in);
headers.putAll(in.readMapOfLists(StreamInput::readString, StreamInput::readString));
}
/**
* Adds a new header with the given key.
* This method will replace existing header if a header with the same key already exists
*/
public void addHeader(String key, String... value) {
this.headers.put(key, Arrays.asList(value));
}
/**
* Adds a new header with the given key.
* This method will replace existing header if a header with the same key already exists
*/
public void addHeader(String key, List value) {
this.headers.put(key, value);
}
/**
* Returns a set of all header keys on this exception
*/
public Set getHeaderKeys() {
return headers.keySet();
}
/**
* Returns the list of header values for the given key or {@code null} if not header for the
* given key exists.
*/
public List getHeader(String key) {
return headers.get(key);
}
/**
* Returns the rest status code associated with this exception.
*/
public RestStatus status() {
Throwable cause = unwrapCause();
if (cause == this) {
return RestStatus.INTERNAL_SERVER_ERROR;
} else {
return ExceptionsHelper.status(cause);
}
}
/**
* Unwraps the actual cause from the exception for cases when the exception is a
* {@link ElasticsearchWrapperException}.
*
* @see ExceptionsHelper#unwrapCause(Throwable)
*/
public Throwable unwrapCause() {
return ExceptionsHelper.unwrapCause(this);
}
/**
* Return the detail message, including the message from the nested exception
* if there is one.
*/
public String getDetailedMessage() {
if (getCause() != null) {
StringBuilder sb = new StringBuilder();
sb.append(toString()).append("; ");
if (getCause() instanceof ElasticsearchException) {
sb.append(((ElasticsearchException) getCause()).getDetailedMessage());
} else {
sb.append(getCause());
}
return sb.toString();
} else {
return super.toString();
}
}
/**
* Retrieve the innermost cause of this exception, if none, returns the current exception.
*/
public Throwable getRootCause() {
Throwable rootCause = this;
Throwable cause = getCause();
while (cause != null && cause != rootCause) {
rootCause = cause;
cause = cause.getCause();
}
return rootCause;
}
@Override
public void writeTo(StreamOutput out) throws IOException {
out.writeOptionalString(this.getMessage());
out.writeException(this.getCause());
writeStackTraces(this, out);
out.writeMapOfLists(headers, StreamOutput::writeString, StreamOutput::writeString);
}
public static ElasticsearchException readException(StreamInput input, int id) throws IOException {
FunctionThatThrowsIOException elasticsearchException = ID_TO_SUPPLIER.get(id);
if (elasticsearchException == null) {
throw new IllegalStateException("unknown exception for id: " + id);
}
return elasticsearchException.apply(input);
}
/**
* Returns true iff the given class is a registered for an exception to be read.
*/
public static boolean isRegistered(Class exception, Version version) {
ElasticsearchExceptionHandle elasticsearchExceptionHandle = CLASS_TO_ELASTICSEARCH_EXCEPTION_HANDLE.get(exception);
if (elasticsearchExceptionHandle != null) {
return version.onOrAfter(elasticsearchExceptionHandle.versionAdded);
}
return false;
}
static Set> getRegisteredKeys() { // for testing
return CLASS_TO_ELASTICSEARCH_EXCEPTION_HANDLE.keySet();
}
/**
* Returns the serialization id the given exception.
*/
public static int getId(Class exception) {
return CLASS_TO_ELASTICSEARCH_EXCEPTION_HANDLE.get(exception).id;
}
@Override
public XContentBuilder toXContent(XContentBuilder builder, Params params) throws IOException {
Throwable ex = ExceptionsHelper.unwrapCause(this);
if (ex != this) {
toXContent(builder, params, this);
} else {
builder.field("type", getExceptionName());
builder.field("reason", getMessage());
for (String key : headers.keySet()) {
if (key.startsWith("es.")) {
List values = headers.get(key);
xContentHeader(builder, key.substring("es.".length()), values);
}
}
innerToXContent(builder, params);
renderHeader(builder, params);
if (params.paramAsBoolean(REST_EXCEPTION_SKIP_STACK_TRACE, REST_EXCEPTION_SKIP_STACK_TRACE_DEFAULT) == false) {
builder.field("stack_trace", ExceptionsHelper.stackTrace(this));
}
}
return builder;
}
/**
* Renders additional per exception information into the xcontent
*/
protected void innerToXContent(XContentBuilder builder, Params params) throws IOException {
causeToXContent(builder, params);
}
/**
* Renders a cause exception as xcontent
*/
protected void causeToXContent(XContentBuilder builder, Params params) throws IOException {
final Throwable cause = getCause();
if (cause != null && params.paramAsBoolean(REST_EXCEPTION_SKIP_CAUSE, REST_EXCEPTION_SKIP_CAUSE_DEFAULT) == false) {
builder.field("caused_by");
builder.startObject();
toXContent(builder, params, cause);
builder.endObject();
}
}
protected final void renderHeader(XContentBuilder builder, Params params) throws IOException {
boolean hasHeader = false;
for (String key : headers.keySet()) {
if (key.startsWith("es.")) {
continue;
}
if (hasHeader == false) {
builder.startObject("header");
hasHeader = true;
}
List values = headers.get(key);
xContentHeader(builder, key, values);
}
if (hasHeader) {
builder.endObject();
}
}
private void xContentHeader(XContentBuilder builder, String key, List values) throws IOException {
if (values != null && values.isEmpty() == false) {
if (values.size() == 1) {
builder.field(key, values.get(0));
} else {
builder.startArray(key);
for (String value : values) {
builder.value(value);
}
builder.endArray();
}
}
}
/**
* Static toXContent helper method that also renders non {@link org.elasticsearch.ElasticsearchException} instances as XContent.
*/
public static void toXContent(XContentBuilder builder, Params params, Throwable ex) throws IOException {
ex = ExceptionsHelper.unwrapCause(ex);
if (ex instanceof ElasticsearchException) {
((ElasticsearchException) ex).toXContent(builder, params);
} else {
builder.field("type", getExceptionName(ex));
builder.field("reason", ex.getMessage());
if (ex.getCause() != null) {
builder.field("caused_by");
builder.startObject();
toXContent(builder, params, ex.getCause());
builder.endObject();
}
if (params.paramAsBoolean(REST_EXCEPTION_SKIP_STACK_TRACE, REST_EXCEPTION_SKIP_STACK_TRACE_DEFAULT) == false) {
builder.field("stack_trace", ExceptionsHelper.stackTrace(ex));
}
}
}
/**
* Returns the root cause of this exception or multiple if different shards caused different exceptions
*/
public ElasticsearchException[] guessRootCauses() {
final Throwable cause = getCause();
if (cause != null && cause instanceof ElasticsearchException) {
return ((ElasticsearchException) cause).guessRootCauses();
}
return new ElasticsearchException[]{this};
}
/**
* Returns the root cause of this exception or multiple if different shards caused different exceptions.
* If the given exception is not an instance of {@link org.elasticsearch.ElasticsearchException} an empty array
* is returned.
*/
public static ElasticsearchException[] guessRootCauses(Throwable t) {
Throwable ex = ExceptionsHelper.unwrapCause(t);
if (ex instanceof ElasticsearchException) {
return ((ElasticsearchException) ex).guessRootCauses();
}
return new ElasticsearchException[]{new ElasticsearchException(t.getMessage(), t) {
@Override
protected String getExceptionName() {
return getExceptionName(getCause());
}
}};
}
protected String getExceptionName() {
return getExceptionName(this);
}
/**
* Returns a underscore case name for the given exception. This method strips Elasticsearch prefixes from exception names.
*/
public static String getExceptionName(Throwable ex) {
String simpleName = ex.getClass().getSimpleName();
if (simpleName.startsWith("Elasticsearch")) {
simpleName = simpleName.substring("Elasticsearch".length());
}
// TODO: do we really need to make the exception name in underscore casing?
return toUnderscoreCase(simpleName);
}
@Override
public String toString() {
StringBuilder builder = new StringBuilder();
if (headers.containsKey(INDEX_HEADER_KEY)) {
builder.append(getIndex());
if (headers.containsKey(SHARD_HEADER_KEY)) {
builder.append('[').append(getShardId()).append(']');
}
builder.append(' ');
}
return builder.append(ExceptionsHelper.detailedMessage(this).trim()).toString();
}
/**
* Deserializes stacktrace elements as well as suppressed exceptions from the given output stream and
* adds it to the given exception.
*/
public static T readStackTrace(T throwable, StreamInput in) throws IOException {
final int stackTraceElements = in.readVInt();
StackTraceElement[] stackTrace = new StackTraceElement[stackTraceElements];
for (int i = 0; i < stackTraceElements; i++) {
final String declaringClasss = in.readString();
final String fileName = in.readOptionalString();
final String methodName = in.readString();
final int lineNumber = in.readVInt();
stackTrace[i] = new StackTraceElement(declaringClasss, methodName, fileName, lineNumber);
}
throwable.setStackTrace(stackTrace);
int numSuppressed = in.readVInt();
for (int i = 0; i < numSuppressed; i++) {
throwable.addSuppressed(in.readException());
}
return throwable;
}
/**
* Serializes the given exceptions stacktrace elements as well as it's suppressed exceptions to the given output stream.
*/
public static T writeStackTraces(T throwable, StreamOutput out) throws IOException {
StackTraceElement[] stackTrace = throwable.getStackTrace();
out.writeVInt(stackTrace.length);
for (StackTraceElement element : stackTrace) {
out.writeString(element.getClassName());
out.writeOptionalString(element.getFileName());
out.writeString(element.getMethodName());
out.writeVInt(element.getLineNumber());
}
Throwable[] suppressed = throwable.getSuppressed();
out.writeVInt(suppressed.length);
for (Throwable t : suppressed) {
out.writeException(t);
}
return throwable;
}
/**
* This is the list of Exceptions Elasticsearch can throw over the wire or save into a corruption marker. Each value in the enum is a
* single exception tying the Class to an id for use of the encode side and the id back to a constructor for use on the decode side. As
* such its ok if the exceptions to change names so long as their constructor can still read the exception. Each exception is listed
* in id order below. If you want to remove an exception leave a tombstone comment and mark the id as null in
* ExceptionSerializationTests.testIds.ids.
*/
enum ElasticsearchExceptionHandle {
INDEX_SHARD_SNAPSHOT_FAILED_EXCEPTION(org.elasticsearch.index.snapshots.IndexShardSnapshotFailedException.class,
org.elasticsearch.index.snapshots.IndexShardSnapshotFailedException::new, 0, UNKNOWN_VERSION_ADDED),
DFS_PHASE_EXECUTION_EXCEPTION(org.elasticsearch.search.dfs.DfsPhaseExecutionException.class,
org.elasticsearch.search.dfs.DfsPhaseExecutionException::new, 1, UNKNOWN_VERSION_ADDED),
EXECUTION_CANCELLED_EXCEPTION(org.elasticsearch.common.util.CancellableThreads.ExecutionCancelledException.class,
org.elasticsearch.common.util.CancellableThreads.ExecutionCancelledException::new, 2, UNKNOWN_VERSION_ADDED),
MASTER_NOT_DISCOVERED_EXCEPTION(org.elasticsearch.discovery.MasterNotDiscoveredException.class,
org.elasticsearch.discovery.MasterNotDiscoveredException::new, 3, UNKNOWN_VERSION_ADDED),
ELASTICSEARCH_SECURITY_EXCEPTION(org.elasticsearch.ElasticsearchSecurityException.class,
org.elasticsearch.ElasticsearchSecurityException::new, 4, UNKNOWN_VERSION_ADDED),
INDEX_SHARD_RESTORE_EXCEPTION(org.elasticsearch.index.snapshots.IndexShardRestoreException.class,
org.elasticsearch.index.snapshots.IndexShardRestoreException::new, 5, UNKNOWN_VERSION_ADDED),
INDEX_CLOSED_EXCEPTION(org.elasticsearch.indices.IndexClosedException.class,
org.elasticsearch.indices.IndexClosedException::new, 6, UNKNOWN_VERSION_ADDED),
BIND_HTTP_EXCEPTION(org.elasticsearch.http.BindHttpException.class,
org.elasticsearch.http.BindHttpException::new, 7, UNKNOWN_VERSION_ADDED),
REDUCE_SEARCH_PHASE_EXCEPTION(org.elasticsearch.action.search.ReduceSearchPhaseException.class,
org.elasticsearch.action.search.ReduceSearchPhaseException::new, 8, UNKNOWN_VERSION_ADDED),
NODE_CLOSED_EXCEPTION(org.elasticsearch.node.NodeClosedException.class,
org.elasticsearch.node.NodeClosedException::new, 9, UNKNOWN_VERSION_ADDED),
SNAPSHOT_FAILED_ENGINE_EXCEPTION(org.elasticsearch.index.engine.SnapshotFailedEngineException.class,
org.elasticsearch.index.engine.SnapshotFailedEngineException::new, 10, UNKNOWN_VERSION_ADDED),
SHARD_NOT_FOUND_EXCEPTION(org.elasticsearch.index.shard.ShardNotFoundException.class,
org.elasticsearch.index.shard.ShardNotFoundException::new, 11, UNKNOWN_VERSION_ADDED),
CONNECT_TRANSPORT_EXCEPTION(org.elasticsearch.transport.ConnectTransportException.class,
org.elasticsearch.transport.ConnectTransportException::new, 12, UNKNOWN_VERSION_ADDED),
NOT_SERIALIZABLE_TRANSPORT_EXCEPTION(org.elasticsearch.transport.NotSerializableTransportException.class,
org.elasticsearch.transport.NotSerializableTransportException::new, 13, UNKNOWN_VERSION_ADDED),
RESPONSE_HANDLER_FAILURE_TRANSPORT_EXCEPTION(org.elasticsearch.transport.ResponseHandlerFailureTransportException.class,
org.elasticsearch.transport.ResponseHandlerFailureTransportException::new, 14, UNKNOWN_VERSION_ADDED),
INDEX_CREATION_EXCEPTION(org.elasticsearch.indices.IndexCreationException.class,
org.elasticsearch.indices.IndexCreationException::new, 15, UNKNOWN_VERSION_ADDED),
INDEX_NOT_FOUND_EXCEPTION(org.elasticsearch.index.IndexNotFoundException.class,
org.elasticsearch.index.IndexNotFoundException::new, 16, UNKNOWN_VERSION_ADDED),
ILLEGAL_SHARD_ROUTING_STATE_EXCEPTION(org.elasticsearch.cluster.routing.IllegalShardRoutingStateException.class,
org.elasticsearch.cluster.routing.IllegalShardRoutingStateException::new, 17, UNKNOWN_VERSION_ADDED),
BROADCAST_SHARD_OPERATION_FAILED_EXCEPTION(org.elasticsearch.action.support.broadcast.BroadcastShardOperationFailedException.class,
org.elasticsearch.action.support.broadcast.BroadcastShardOperationFailedException::new, 18, UNKNOWN_VERSION_ADDED),
RESOURCE_NOT_FOUND_EXCEPTION(org.elasticsearch.ResourceNotFoundException.class,
org.elasticsearch.ResourceNotFoundException::new, 19, UNKNOWN_VERSION_ADDED),
ACTION_TRANSPORT_EXCEPTION(org.elasticsearch.transport.ActionTransportException.class,
org.elasticsearch.transport.ActionTransportException::new, 20, UNKNOWN_VERSION_ADDED),
ELASTICSEARCH_GENERATION_EXCEPTION(org.elasticsearch.ElasticsearchGenerationException.class,
org.elasticsearch.ElasticsearchGenerationException::new, 21, UNKNOWN_VERSION_ADDED),
// 22 was CreateFailedEngineException
INDEX_SHARD_STARTED_EXCEPTION(org.elasticsearch.index.shard.IndexShardStartedException.class,
org.elasticsearch.index.shard.IndexShardStartedException::new, 23, UNKNOWN_VERSION_ADDED),
SEARCH_CONTEXT_MISSING_EXCEPTION(org.elasticsearch.search.SearchContextMissingException.class,
org.elasticsearch.search.SearchContextMissingException::new, 24, UNKNOWN_VERSION_ADDED),
GENERAL_SCRIPT_EXCEPTION(org.elasticsearch.script.GeneralScriptException.class,
org.elasticsearch.script.GeneralScriptException::new, 25, UNKNOWN_VERSION_ADDED),
BATCH_OPERATION_EXCEPTION(org.elasticsearch.index.shard.TranslogRecoveryPerformer.BatchOperationException.class,
org.elasticsearch.index.shard.TranslogRecoveryPerformer.BatchOperationException::new, 26, UNKNOWN_VERSION_ADDED),
SNAPSHOT_CREATION_EXCEPTION(org.elasticsearch.snapshots.SnapshotCreationException.class,
org.elasticsearch.snapshots.SnapshotCreationException::new, 27, UNKNOWN_VERSION_ADDED),
DELETE_FAILED_ENGINE_EXCEPTION(org.elasticsearch.index.engine.DeleteFailedEngineException.class,
org.elasticsearch.index.engine.DeleteFailedEngineException::new, 28, UNKNOWN_VERSION_ADDED),
DOCUMENT_MISSING_EXCEPTION(org.elasticsearch.index.engine.DocumentMissingException.class,
org.elasticsearch.index.engine.DocumentMissingException::new, 29, UNKNOWN_VERSION_ADDED),
SNAPSHOT_EXCEPTION(org.elasticsearch.snapshots.SnapshotException.class,
org.elasticsearch.snapshots.SnapshotException::new, 30, UNKNOWN_VERSION_ADDED),
INVALID_ALIAS_NAME_EXCEPTION(org.elasticsearch.indices.InvalidAliasNameException.class,
org.elasticsearch.indices.InvalidAliasNameException::new, 31, UNKNOWN_VERSION_ADDED),
INVALID_INDEX_NAME_EXCEPTION(org.elasticsearch.indices.InvalidIndexNameException.class,
org.elasticsearch.indices.InvalidIndexNameException::new, 32, UNKNOWN_VERSION_ADDED),
INDEX_PRIMARY_SHARD_NOT_ALLOCATED_EXCEPTION(org.elasticsearch.indices.IndexPrimaryShardNotAllocatedException.class,
org.elasticsearch.indices.IndexPrimaryShardNotAllocatedException::new, 33, UNKNOWN_VERSION_ADDED),
TRANSPORT_EXCEPTION(org.elasticsearch.transport.TransportException.class,
org.elasticsearch.transport.TransportException::new, 34, UNKNOWN_VERSION_ADDED),
ELASTICSEARCH_PARSE_EXCEPTION(org.elasticsearch.ElasticsearchParseException.class,
org.elasticsearch.ElasticsearchParseException::new, 35, UNKNOWN_VERSION_ADDED),
SEARCH_EXCEPTION(org.elasticsearch.search.SearchException.class,
org.elasticsearch.search.SearchException::new, 36, UNKNOWN_VERSION_ADDED),
MAPPER_EXCEPTION(org.elasticsearch.index.mapper.MapperException.class,
org.elasticsearch.index.mapper.MapperException::new, 37, UNKNOWN_VERSION_ADDED),
INVALID_TYPE_NAME_EXCEPTION(org.elasticsearch.indices.InvalidTypeNameException.class,
org.elasticsearch.indices.InvalidTypeNameException::new, 38, UNKNOWN_VERSION_ADDED),
SNAPSHOT_RESTORE_EXCEPTION(org.elasticsearch.snapshots.SnapshotRestoreException.class,
org.elasticsearch.snapshots.SnapshotRestoreException::new, 39, UNKNOWN_VERSION_ADDED),
PARSING_EXCEPTION(org.elasticsearch.common.ParsingException.class, org.elasticsearch.common.ParsingException::new, 40,
UNKNOWN_VERSION_ADDED),
INDEX_SHARD_CLOSED_EXCEPTION(org.elasticsearch.index.shard.IndexShardClosedException.class,
org.elasticsearch.index.shard.IndexShardClosedException::new, 41, UNKNOWN_VERSION_ADDED),
RECOVER_FILES_RECOVERY_EXCEPTION(org.elasticsearch.indices.recovery.RecoverFilesRecoveryException.class,
org.elasticsearch.indices.recovery.RecoverFilesRecoveryException::new, 42, UNKNOWN_VERSION_ADDED),
TRUNCATED_TRANSLOG_EXCEPTION(org.elasticsearch.index.translog.TruncatedTranslogException.class,
org.elasticsearch.index.translog.TruncatedTranslogException::new, 43, UNKNOWN_VERSION_ADDED),
RECOVERY_FAILED_EXCEPTION(org.elasticsearch.indices.recovery.RecoveryFailedException.class,
org.elasticsearch.indices.recovery.RecoveryFailedException::new, 44, UNKNOWN_VERSION_ADDED),
INDEX_SHARD_RELOCATED_EXCEPTION(org.elasticsearch.index.shard.IndexShardRelocatedException.class,
org.elasticsearch.index.shard.IndexShardRelocatedException::new, 45, UNKNOWN_VERSION_ADDED),
NODE_SHOULD_NOT_CONNECT_EXCEPTION(org.elasticsearch.transport.NodeShouldNotConnectException.class,
org.elasticsearch.transport.NodeShouldNotConnectException::new, 46, UNKNOWN_VERSION_ADDED),
INDEX_TEMPLATE_ALREADY_EXISTS_EXCEPTION(org.elasticsearch.indices.IndexTemplateAlreadyExistsException.class,
org.elasticsearch.indices.IndexTemplateAlreadyExistsException::new, 47, UNKNOWN_VERSION_ADDED),
TRANSLOG_CORRUPTED_EXCEPTION(org.elasticsearch.index.translog.TranslogCorruptedException.class,
org.elasticsearch.index.translog.TranslogCorruptedException::new, 48, UNKNOWN_VERSION_ADDED),
CLUSTER_BLOCK_EXCEPTION(org.elasticsearch.cluster.block.ClusterBlockException.class,
org.elasticsearch.cluster.block.ClusterBlockException::new, 49, UNKNOWN_VERSION_ADDED),
FETCH_PHASE_EXECUTION_EXCEPTION(org.elasticsearch.search.fetch.FetchPhaseExecutionException.class,
org.elasticsearch.search.fetch.FetchPhaseExecutionException::new, 50, UNKNOWN_VERSION_ADDED),
INDEX_SHARD_ALREADY_EXISTS_EXCEPTION(org.elasticsearch.index.IndexShardAlreadyExistsException.class,
org.elasticsearch.index.IndexShardAlreadyExistsException::new, 51, UNKNOWN_VERSION_ADDED),
VERSION_CONFLICT_ENGINE_EXCEPTION(org.elasticsearch.index.engine.VersionConflictEngineException.class,
org.elasticsearch.index.engine.VersionConflictEngineException::new, 52, UNKNOWN_VERSION_ADDED),
ENGINE_EXCEPTION(org.elasticsearch.index.engine.EngineException.class, org.elasticsearch.index.engine.EngineException::new, 53,
UNKNOWN_VERSION_ADDED),
// 54 was DocumentAlreadyExistsException, which is superseded by VersionConflictEngineException
NO_SUCH_NODE_EXCEPTION(org.elasticsearch.action.NoSuchNodeException.class, org.elasticsearch.action.NoSuchNodeException::new, 55,
UNKNOWN_VERSION_ADDED),
SETTINGS_EXCEPTION(org.elasticsearch.common.settings.SettingsException.class,
org.elasticsearch.common.settings.SettingsException::new, 56, UNKNOWN_VERSION_ADDED),
INDEX_TEMPLATE_MISSING_EXCEPTION(org.elasticsearch.indices.IndexTemplateMissingException.class,
org.elasticsearch.indices.IndexTemplateMissingException::new, 57, UNKNOWN_VERSION_ADDED),
SEND_REQUEST_TRANSPORT_EXCEPTION(org.elasticsearch.transport.SendRequestTransportException.class,
org.elasticsearch.transport.SendRequestTransportException::new, 58, UNKNOWN_VERSION_ADDED),
ES_REJECTED_EXECUTION_EXCEPTION(org.elasticsearch.common.util.concurrent.EsRejectedExecutionException.class,
org.elasticsearch.common.util.concurrent.EsRejectedExecutionException::new, 59, UNKNOWN_VERSION_ADDED),
EARLY_TERMINATION_EXCEPTION(org.elasticsearch.common.lucene.Lucene.EarlyTerminationException.class,
org.elasticsearch.common.lucene.Lucene.EarlyTerminationException::new, 60, UNKNOWN_VERSION_ADDED),
// 61 used to be for RoutingValidationException
NOT_SERIALIZABLE_EXCEPTION_WRAPPER(org.elasticsearch.common.io.stream.NotSerializableExceptionWrapper.class,
org.elasticsearch.common.io.stream.NotSerializableExceptionWrapper::new, 62, UNKNOWN_VERSION_ADDED),
ALIAS_FILTER_PARSING_EXCEPTION(org.elasticsearch.indices.AliasFilterParsingException.class,
org.elasticsearch.indices.AliasFilterParsingException::new, 63, UNKNOWN_VERSION_ADDED),
// 64 was DeleteByQueryFailedEngineException, which was removed in 5.0
GATEWAY_EXCEPTION(org.elasticsearch.gateway.GatewayException.class, org.elasticsearch.gateway.GatewayException::new, 65,
UNKNOWN_VERSION_ADDED),
INDEX_SHARD_NOT_RECOVERING_EXCEPTION(org.elasticsearch.index.shard.IndexShardNotRecoveringException.class,
org.elasticsearch.index.shard.IndexShardNotRecoveringException::new, 66, UNKNOWN_VERSION_ADDED),
HTTP_EXCEPTION(org.elasticsearch.http.HttpException.class, org.elasticsearch.http.HttpException::new, 67, UNKNOWN_VERSION_ADDED),
ELASTICSEARCH_EXCEPTION(org.elasticsearch.ElasticsearchException.class,
org.elasticsearch.ElasticsearchException::new, 68, UNKNOWN_VERSION_ADDED),
SNAPSHOT_MISSING_EXCEPTION(org.elasticsearch.snapshots.SnapshotMissingException.class,
org.elasticsearch.snapshots.SnapshotMissingException::new, 69, UNKNOWN_VERSION_ADDED),
PRIMARY_MISSING_ACTION_EXCEPTION(org.elasticsearch.action.PrimaryMissingActionException.class,
org.elasticsearch.action.PrimaryMissingActionException::new, 70, UNKNOWN_VERSION_ADDED),
FAILED_NODE_EXCEPTION(org.elasticsearch.action.FailedNodeException.class, org.elasticsearch.action.FailedNodeException::new, 71,
UNKNOWN_VERSION_ADDED),
SEARCH_PARSE_EXCEPTION(org.elasticsearch.search.SearchParseException.class, org.elasticsearch.search.SearchParseException::new, 72,
UNKNOWN_VERSION_ADDED),
CONCURRENT_SNAPSHOT_EXECUTION_EXCEPTION(org.elasticsearch.snapshots.ConcurrentSnapshotExecutionException.class,
org.elasticsearch.snapshots.ConcurrentSnapshotExecutionException::new, 73, UNKNOWN_VERSION_ADDED),
BLOB_STORE_EXCEPTION(org.elasticsearch.common.blobstore.BlobStoreException.class,
org.elasticsearch.common.blobstore.BlobStoreException::new, 74, UNKNOWN_VERSION_ADDED),
INCOMPATIBLE_CLUSTER_STATE_VERSION_EXCEPTION(org.elasticsearch.cluster.IncompatibleClusterStateVersionException.class,
org.elasticsearch.cluster.IncompatibleClusterStateVersionException::new, 75, UNKNOWN_VERSION_ADDED),
RECOVERY_ENGINE_EXCEPTION(org.elasticsearch.index.engine.RecoveryEngineException.class,
org.elasticsearch.index.engine.RecoveryEngineException::new, 76, UNKNOWN_VERSION_ADDED),
UNCATEGORIZED_EXECUTION_EXCEPTION(org.elasticsearch.common.util.concurrent.UncategorizedExecutionException.class,
org.elasticsearch.common.util.concurrent.UncategorizedExecutionException::new, 77, UNKNOWN_VERSION_ADDED),
TIMESTAMP_PARSING_EXCEPTION(org.elasticsearch.action.TimestampParsingException.class,
org.elasticsearch.action.TimestampParsingException::new, 78, UNKNOWN_VERSION_ADDED),
ROUTING_MISSING_EXCEPTION(org.elasticsearch.action.RoutingMissingException.class,
org.elasticsearch.action.RoutingMissingException::new, 79, UNKNOWN_VERSION_ADDED),
INDEX_FAILED_ENGINE_EXCEPTION(org.elasticsearch.index.engine.IndexFailedEngineException.class,
org.elasticsearch.index.engine.IndexFailedEngineException::new, 80, UNKNOWN_VERSION_ADDED),
INDEX_SHARD_RESTORE_FAILED_EXCEPTION(org.elasticsearch.index.snapshots.IndexShardRestoreFailedException.class,
org.elasticsearch.index.snapshots.IndexShardRestoreFailedException::new, 81, UNKNOWN_VERSION_ADDED),
REPOSITORY_EXCEPTION(org.elasticsearch.repositories.RepositoryException.class,
org.elasticsearch.repositories.RepositoryException::new, 82, UNKNOWN_VERSION_ADDED),
RECEIVE_TIMEOUT_TRANSPORT_EXCEPTION(org.elasticsearch.transport.ReceiveTimeoutTransportException.class,
org.elasticsearch.transport.ReceiveTimeoutTransportException::new, 83, UNKNOWN_VERSION_ADDED),
NODE_DISCONNECTED_EXCEPTION(org.elasticsearch.transport.NodeDisconnectedException.class,
org.elasticsearch.transport.NodeDisconnectedException::new, 84, UNKNOWN_VERSION_ADDED),
ALREADY_EXPIRED_EXCEPTION(org.elasticsearch.index.AlreadyExpiredException.class,
org.elasticsearch.index.AlreadyExpiredException::new, 85, UNKNOWN_VERSION_ADDED),
AGGREGATION_EXECUTION_EXCEPTION(org.elasticsearch.search.aggregations.AggregationExecutionException.class,
org.elasticsearch.search.aggregations.AggregationExecutionException::new, 86, UNKNOWN_VERSION_ADDED),
// 87 used to be for MergeMappingException
INVALID_INDEX_TEMPLATE_EXCEPTION(org.elasticsearch.indices.InvalidIndexTemplateException.class,
org.elasticsearch.indices.InvalidIndexTemplateException::new, 88, UNKNOWN_VERSION_ADDED),
REFRESH_FAILED_ENGINE_EXCEPTION(org.elasticsearch.index.engine.RefreshFailedEngineException.class,
org.elasticsearch.index.engine.RefreshFailedEngineException::new, 90, UNKNOWN_VERSION_ADDED),
AGGREGATION_INITIALIZATION_EXCEPTION(org.elasticsearch.search.aggregations.AggregationInitializationException.class,
org.elasticsearch.search.aggregations.AggregationInitializationException::new, 91, UNKNOWN_VERSION_ADDED),
DELAY_RECOVERY_EXCEPTION(org.elasticsearch.indices.recovery.DelayRecoveryException.class,
org.elasticsearch.indices.recovery.DelayRecoveryException::new, 92, UNKNOWN_VERSION_ADDED),
// 93 used to be for IndexWarmerMissingException
NO_NODE_AVAILABLE_EXCEPTION(org.elasticsearch.client.transport.NoNodeAvailableException.class,
org.elasticsearch.client.transport.NoNodeAvailableException::new, 94, UNKNOWN_VERSION_ADDED),
INVALID_SNAPSHOT_NAME_EXCEPTION(org.elasticsearch.snapshots.InvalidSnapshotNameException.class,
org.elasticsearch.snapshots.InvalidSnapshotNameException::new, 96, UNKNOWN_VERSION_ADDED),
ILLEGAL_INDEX_SHARD_STATE_EXCEPTION(org.elasticsearch.index.shard.IllegalIndexShardStateException.class,
org.elasticsearch.index.shard.IllegalIndexShardStateException::new, 97, UNKNOWN_VERSION_ADDED),
INDEX_SHARD_SNAPSHOT_EXCEPTION(org.elasticsearch.index.snapshots.IndexShardSnapshotException.class,
org.elasticsearch.index.snapshots.IndexShardSnapshotException::new, 98, UNKNOWN_VERSION_ADDED),
INDEX_SHARD_NOT_STARTED_EXCEPTION(org.elasticsearch.index.shard.IndexShardNotStartedException.class,
org.elasticsearch.index.shard.IndexShardNotStartedException::new, 99, UNKNOWN_VERSION_ADDED),
SEARCH_PHASE_EXECUTION_EXCEPTION(org.elasticsearch.action.search.SearchPhaseExecutionException.class,
org.elasticsearch.action.search.SearchPhaseExecutionException::new, 100, UNKNOWN_VERSION_ADDED),
ACTION_NOT_FOUND_TRANSPORT_EXCEPTION(org.elasticsearch.transport.ActionNotFoundTransportException.class,
org.elasticsearch.transport.ActionNotFoundTransportException::new, 101, UNKNOWN_VERSION_ADDED),
TRANSPORT_SERIALIZATION_EXCEPTION(org.elasticsearch.transport.TransportSerializationException.class,
org.elasticsearch.transport.TransportSerializationException::new, 102, UNKNOWN_VERSION_ADDED),
REMOTE_TRANSPORT_EXCEPTION(org.elasticsearch.transport.RemoteTransportException.class,
org.elasticsearch.transport.RemoteTransportException::new, 103, UNKNOWN_VERSION_ADDED),
ENGINE_CREATION_FAILURE_EXCEPTION(org.elasticsearch.index.engine.EngineCreationFailureException.class,
org.elasticsearch.index.engine.EngineCreationFailureException::new, 104, UNKNOWN_VERSION_ADDED),
ROUTING_EXCEPTION(org.elasticsearch.cluster.routing.RoutingException.class,
org.elasticsearch.cluster.routing.RoutingException::new, 105, UNKNOWN_VERSION_ADDED),
INDEX_SHARD_RECOVERY_EXCEPTION(org.elasticsearch.index.shard.IndexShardRecoveryException.class,
org.elasticsearch.index.shard.IndexShardRecoveryException::new, 106, UNKNOWN_VERSION_ADDED),
REPOSITORY_MISSING_EXCEPTION(org.elasticsearch.repositories.RepositoryMissingException.class,
org.elasticsearch.repositories.RepositoryMissingException::new, 107, UNKNOWN_VERSION_ADDED),
DOCUMENT_SOURCE_MISSING_EXCEPTION(org.elasticsearch.index.engine.DocumentSourceMissingException.class,
org.elasticsearch.index.engine.DocumentSourceMissingException::new, 109, UNKNOWN_VERSION_ADDED),
// 110 used to be FlushNotAllowedEngineException
NO_CLASS_SETTINGS_EXCEPTION(org.elasticsearch.common.settings.NoClassSettingsException.class,
org.elasticsearch.common.settings.NoClassSettingsException::new, 111, UNKNOWN_VERSION_ADDED),
BIND_TRANSPORT_EXCEPTION(org.elasticsearch.transport.BindTransportException.class,
org.elasticsearch.transport.BindTransportException::new, 112, UNKNOWN_VERSION_ADDED),
ALIASES_NOT_FOUND_EXCEPTION(org.elasticsearch.rest.action.admin.indices.AliasesNotFoundException.class,
org.elasticsearch.rest.action.admin.indices.AliasesNotFoundException::new, 113, UNKNOWN_VERSION_ADDED),
INDEX_SHARD_RECOVERING_EXCEPTION(org.elasticsearch.index.shard.IndexShardRecoveringException.class,
org.elasticsearch.index.shard.IndexShardRecoveringException::new, 114, UNKNOWN_VERSION_ADDED),
TRANSLOG_EXCEPTION(org.elasticsearch.index.translog.TranslogException.class,
org.elasticsearch.index.translog.TranslogException::new, 115, UNKNOWN_VERSION_ADDED),
PROCESS_CLUSTER_EVENT_TIMEOUT_EXCEPTION(org.elasticsearch.cluster.metadata.ProcessClusterEventTimeoutException.class,
org.elasticsearch.cluster.metadata.ProcessClusterEventTimeoutException::new, 116, UNKNOWN_VERSION_ADDED),
RETRY_ON_PRIMARY_EXCEPTION(ReplicationOperation.RetryOnPrimaryException.class,
ReplicationOperation.RetryOnPrimaryException::new, 117, UNKNOWN_VERSION_ADDED),
ELASTICSEARCH_TIMEOUT_EXCEPTION(org.elasticsearch.ElasticsearchTimeoutException.class,
org.elasticsearch.ElasticsearchTimeoutException::new, 118, UNKNOWN_VERSION_ADDED),
QUERY_PHASE_EXECUTION_EXCEPTION(org.elasticsearch.search.query.QueryPhaseExecutionException.class,
org.elasticsearch.search.query.QueryPhaseExecutionException::new, 119, UNKNOWN_VERSION_ADDED),
REPOSITORY_VERIFICATION_EXCEPTION(org.elasticsearch.repositories.RepositoryVerificationException.class,
org.elasticsearch.repositories.RepositoryVerificationException::new, 120, UNKNOWN_VERSION_ADDED),
INVALID_AGGREGATION_PATH_EXCEPTION(org.elasticsearch.search.aggregations.InvalidAggregationPathException.class,
org.elasticsearch.search.aggregations.InvalidAggregationPathException::new, 121, UNKNOWN_VERSION_ADDED),
// 123 used to be IndexAlreadyExistsException and was renamed
RESOURCE_ALREADY_EXISTS_EXCEPTION(ResourceAlreadyExistsException.class,
ResourceAlreadyExistsException::new, 123, UNKNOWN_VERSION_ADDED),
// 124 used to be Script.ScriptParseException
HTTP_ON_TRANSPORT_EXCEPTION(TcpTransport.HttpOnTransportException.class,
TcpTransport.HttpOnTransportException::new, 125, UNKNOWN_VERSION_ADDED),
MAPPER_PARSING_EXCEPTION(org.elasticsearch.index.mapper.MapperParsingException.class,
org.elasticsearch.index.mapper.MapperParsingException::new, 126, UNKNOWN_VERSION_ADDED),
SEARCH_CONTEXT_EXCEPTION(org.elasticsearch.search.SearchContextException.class,
org.elasticsearch.search.SearchContextException::new, 127, UNKNOWN_VERSION_ADDED),
SEARCH_SOURCE_BUILDER_EXCEPTION(org.elasticsearch.search.builder.SearchSourceBuilderException.class,
org.elasticsearch.search.builder.SearchSourceBuilderException::new, 128, UNKNOWN_VERSION_ADDED),
ENGINE_CLOSED_EXCEPTION(org.elasticsearch.index.engine.EngineClosedException.class,
org.elasticsearch.index.engine.EngineClosedException::new, 129, UNKNOWN_VERSION_ADDED),
NO_SHARD_AVAILABLE_ACTION_EXCEPTION(org.elasticsearch.action.NoShardAvailableActionException.class,
org.elasticsearch.action.NoShardAvailableActionException::new, 130, UNKNOWN_VERSION_ADDED),
UNAVAILABLE_SHARDS_EXCEPTION(org.elasticsearch.action.UnavailableShardsException.class,
org.elasticsearch.action.UnavailableShardsException::new, 131, UNKNOWN_VERSION_ADDED),
FLUSH_FAILED_ENGINE_EXCEPTION(org.elasticsearch.index.engine.FlushFailedEngineException.class,
org.elasticsearch.index.engine.FlushFailedEngineException::new, 132, UNKNOWN_VERSION_ADDED),
CIRCUIT_BREAKING_EXCEPTION(org.elasticsearch.common.breaker.CircuitBreakingException.class,
org.elasticsearch.common.breaker.CircuitBreakingException::new, 133, UNKNOWN_VERSION_ADDED),
NODE_NOT_CONNECTED_EXCEPTION(org.elasticsearch.transport.NodeNotConnectedException.class,
org.elasticsearch.transport.NodeNotConnectedException::new, 134, UNKNOWN_VERSION_ADDED),
STRICT_DYNAMIC_MAPPING_EXCEPTION(org.elasticsearch.index.mapper.StrictDynamicMappingException.class,
org.elasticsearch.index.mapper.StrictDynamicMappingException::new, 135, UNKNOWN_VERSION_ADDED),
RETRY_ON_REPLICA_EXCEPTION(org.elasticsearch.action.support.replication.TransportReplicationAction.RetryOnReplicaException.class,
org.elasticsearch.action.support.replication.TransportReplicationAction.RetryOnReplicaException::new, 136,
UNKNOWN_VERSION_ADDED),
TYPE_MISSING_EXCEPTION(org.elasticsearch.indices.TypeMissingException.class,
org.elasticsearch.indices.TypeMissingException::new, 137, UNKNOWN_VERSION_ADDED),
FAILED_TO_COMMIT_CLUSTER_STATE_EXCEPTION(org.elasticsearch.discovery.Discovery.FailedToCommitClusterStateException.class,
org.elasticsearch.discovery.Discovery.FailedToCommitClusterStateException::new, 140, UNKNOWN_VERSION_ADDED),
QUERY_SHARD_EXCEPTION(org.elasticsearch.index.query.QueryShardException.class,
org.elasticsearch.index.query.QueryShardException::new, 141, UNKNOWN_VERSION_ADDED),
NO_LONGER_PRIMARY_SHARD_EXCEPTION(ShardStateAction.NoLongerPrimaryShardException.class,
ShardStateAction.NoLongerPrimaryShardException::new, 142, UNKNOWN_VERSION_ADDED),
SCRIPT_EXCEPTION(org.elasticsearch.script.ScriptException.class, org.elasticsearch.script.ScriptException::new, 143,
UNKNOWN_VERSION_ADDED),
NOT_MASTER_EXCEPTION(org.elasticsearch.cluster.NotMasterException.class, org.elasticsearch.cluster.NotMasterException::new, 144,
UNKNOWN_VERSION_ADDED),
STATUS_EXCEPTION(org.elasticsearch.ElasticsearchStatusException.class, org.elasticsearch.ElasticsearchStatusException::new, 145,
UNKNOWN_VERSION_ADDED),
TASK_CANCELLED_EXCEPTION(org.elasticsearch.tasks.TaskCancelledException.class,
org.elasticsearch.tasks.TaskCancelledException::new, 146, Version.V_5_1_1),
SHARD_LOCK_OBTAIN_FAILED_EXCEPTION(org.elasticsearch.env.ShardLockObtainFailedException.class,
org.elasticsearch.env.ShardLockObtainFailedException::new, 147, Version.V_5_0_2);
final Class exceptionClass;
final FunctionThatThrowsIOException constructor;
final int id;
final Version versionAdded;
ElasticsearchExceptionHandle(Class exceptionClass,
FunctionThatThrowsIOException constructor, int id,
Version versionAdded) {
// We need the exceptionClass because you can't dig it out of the constructor reliably.
this.exceptionClass = exceptionClass;
this.constructor = constructor;
this.versionAdded = versionAdded;
this.id = id;
}
}
static {
ID_TO_SUPPLIER = unmodifiableMap(Arrays
.stream(ElasticsearchExceptionHandle.values()).collect(Collectors.toMap(e -> e.id, e -> e.constructor)));
CLASS_TO_ELASTICSEARCH_EXCEPTION_HANDLE = unmodifiableMap(Arrays
.stream(ElasticsearchExceptionHandle.values()).collect(Collectors.toMap(e -> e.exceptionClass, e -> e)));
}
public Index getIndex() {
List index = getHeader(INDEX_HEADER_KEY);
if (index != null && index.isEmpty() == false) {
List index_uuid = getHeader(INDEX_HEADER_KEY_UUID);
return new Index(index.get(0), index_uuid.get(0));
}
return null;
}
public ShardId getShardId() {
List shard = getHeader(SHARD_HEADER_KEY);
if (shard != null && shard.isEmpty() == false) {
return new ShardId(getIndex(), Integer.parseInt(shard.get(0)));
}
return null;
}
public void setIndex(Index index) {
if (index != null) {
addHeader(INDEX_HEADER_KEY, index.getName());
addHeader(INDEX_HEADER_KEY_UUID, index.getUUID());
}
}
public void setIndex(String index) {
if (index != null) {
setIndex(new Index(index, INDEX_UUID_NA_VALUE));
}
}
public void setShard(ShardId shardId) {
if (shardId != null) {
setIndex(shardId.getIndex());
addHeader(SHARD_HEADER_KEY, Integer.toString(shardId.id()));
}
}
public void setShard(String index, int shardId) {
setIndex(index);
addHeader(SHARD_HEADER_KEY, Integer.toString(shardId));
}
public void setResources(String type, String... id) {
assert type != null;
addHeader(RESOURCE_HEADER_ID_KEY, id);
addHeader(RESOURCE_HEADER_TYPE_KEY, type);
}
public List getResourceId() {
return getHeader(RESOURCE_HEADER_ID_KEY);
}
public String getResourceType() {
List header = getHeader(RESOURCE_HEADER_TYPE_KEY);
if (header != null && header.isEmpty() == false) {
assert header.size() == 1;
return header.get(0);
}
return null;
}
public static void renderException(XContentBuilder builder, Params params, Exception e) throws IOException {
builder.startObject("error");
final ElasticsearchException[] rootCauses = ElasticsearchException.guessRootCauses(e);
builder.field("root_cause");
builder.startArray();
for (ElasticsearchException rootCause : rootCauses) {
builder.startObject();
rootCause.toXContent(builder, new ToXContent.DelegatingMapParams(
Collections.singletonMap(ElasticsearchException.REST_EXCEPTION_SKIP_CAUSE, "true"), params));
builder.endObject();
}
builder.endArray();
ElasticsearchException.toXContent(builder, params, e);
builder.endObject();
}
interface FunctionThatThrowsIOException {
R apply(T t) throws IOException;
}
// lower cases and adds underscores to transitions in a name
private static String toUnderscoreCase(String value) {
StringBuilder sb = new StringBuilder();
boolean changed = false;
for (int i = 0; i < value.length(); i++) {
char c = value.charAt(i);
if (Character.isUpperCase(c)) {
if (!changed) {
// copy it over here
for (int j = 0; j < i; j++) {
sb.append(value.charAt(j));
}
changed = true;
if (i == 0) {
sb.append(Character.toLowerCase(c));
} else {
sb.append('_');
sb.append(Character.toLowerCase(c));
}
} else {
sb.append('_');
sb.append(Character.toLowerCase(c));
}
} else {
if (changed) {
sb.append(c);
}
}
}
if (!changed) {
return value;
}
return sb.toString();
}
}