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Elasticsearch subproject :server
/*
* 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;
import org.elasticsearch.ElasticsearchException;
import org.elasticsearch.ExceptionsHelper;
import org.elasticsearch.common.ParseField;
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.xcontent.ConstructingObjectParser;
import org.elasticsearch.common.xcontent.ToXContentFragment;
import org.elasticsearch.common.xcontent.XContentBuilder;
import org.elasticsearch.common.xcontent.XContentParser;
import org.elasticsearch.rest.RestStatus;
import java.io.IOException;
import static org.elasticsearch.common.xcontent.ConstructingObjectParser.constructorArg;
/**
* Information about task operation failures
*
* The class is final due to serialization limitations
*/
public final class TaskOperationFailure implements Writeable, ToXContentFragment {
private static final String TASK_ID = "task_id";
private static final String NODE_ID = "node_id";
private static final String STATUS = "status";
private static final String REASON = "reason";
private final String nodeId;
private final long taskId;
private final Exception reason;
private final RestStatus status;
private static final ConstructingObjectParser PARSER =
new ConstructingObjectParser<>("task_info", true, constructorObjects -> {
int i = 0;
String nodeId = (String) constructorObjects[i++];
long taskId = (long) constructorObjects[i++];
ElasticsearchException reason = (ElasticsearchException) constructorObjects[i];
return new TaskOperationFailure(nodeId, taskId, reason);
});
static {
PARSER.declareString(constructorArg(), new ParseField(NODE_ID));
PARSER.declareLong(constructorArg(), new ParseField(TASK_ID));
PARSER.declareObject(constructorArg(), (parser, c) -> ElasticsearchException.fromXContent(parser), new ParseField(REASON));
}
public TaskOperationFailure(String nodeId, long taskId, Exception e) {
this.nodeId = nodeId;
this.taskId = taskId;
this.reason = e;
status = ExceptionsHelper.status(e);
}
/**
* Read from a stream.
*/
public TaskOperationFailure(StreamInput in) throws IOException {
nodeId = in.readString();
taskId = in.readLong();
reason = in.readException();
status = RestStatus.readFrom(in);
}
@Override
public void writeTo(StreamOutput out) throws IOException {
out.writeString(nodeId);
out.writeLong(taskId);
out.writeException(reason);
RestStatus.writeTo(out, status);
}
public String getNodeId() {
return this.nodeId;
}
public long getTaskId() {
return this.taskId;
}
public RestStatus getStatus() {
return status;
}
public Exception getCause() {
return reason;
}
@Override
public String toString() {
return "[" + nodeId + "][" + taskId + "] failed, reason [" + reason + "]";
}
public static TaskOperationFailure fromXContent(XContentParser parser) {
return PARSER.apply(parser, null);
}
@Override
public XContentBuilder toXContent(XContentBuilder builder, Params params) throws IOException {
builder.field(TASK_ID, getTaskId());
builder.field(NODE_ID, getNodeId());
builder.field(STATUS, status.name());
if (reason != null) {
builder.field(REASON);
builder.startObject();
ElasticsearchException.generateThrowableXContent(builder, params, reason);
builder.endObject();
}
return builder;
}
}