org.elasticsearch.rest.XContentThrowableRestResponse Maven / Gradle / Ivy
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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.rest;
import org.elasticsearch.ElasticsearchException;
import org.elasticsearch.common.xcontent.XContentBuilder;
import java.io.IOException;
import static org.elasticsearch.ExceptionsHelper.detailedMessage;
import static org.elasticsearch.rest.action.support.RestXContentBuilder.restContentBuilder;
/**
*
*/
public class XContentThrowableRestResponse extends XContentRestResponse {
public XContentThrowableRestResponse(RestRequest request, Throwable t) throws IOException {
this(request, ((t instanceof ElasticsearchException) ? ((ElasticsearchException) t).status() : RestStatus.INTERNAL_SERVER_ERROR), t);
}
public XContentThrowableRestResponse(RestRequest request, RestStatus status, Throwable t) throws IOException {
super(request, status, convert(request, status, t));
}
private static XContentBuilder convert(RestRequest request, RestStatus status, Throwable t) throws IOException {
XContentBuilder builder = restContentBuilder(request).startObject()
.field("error", detailedMessage(t))
.field("status", status.getStatus());
if (t != null && request.paramAsBoolean("error_trace", false)) {
builder.startObject("error_trace");
boolean first = true;
while (t != null) {
if (!first) {
builder.startObject("cause");
}
buildThrowable(t, builder);
if (!first) {
builder.endObject();
}
t = t.getCause();
first = false;
}
builder.endObject();
}
builder.endObject();
return builder;
}
private static void buildThrowable(Throwable t, XContentBuilder builder) throws IOException {
builder.field("message", t.getMessage());
for (StackTraceElement stElement : t.getStackTrace()) {
builder.startObject("at")
.field("class", stElement.getClassName())
.field("method", stElement.getMethodName());
if (stElement.getFileName() != null) {
builder.field("file", stElement.getFileName());
}
if (stElement.getLineNumber() >= 0) {
builder.field("line", stElement.getLineNumber());
}
builder.endObject();
}
}
}