/*
* 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.river.mongodb.rest.action.support;
import org.elasticsearch.common.Nullable;
import org.elasticsearch.common.bytes.BytesReference;
import org.elasticsearch.common.io.stream.BytesStreamOutput;
import org.elasticsearch.common.xcontent.*;
import org.elasticsearch.rest.RestRequest;
import java.io.IOException;
/**
*
*/
public class RestXContentBuilder {
public static XContentBuilder restContentBuilder(RestRequest request) throws IOException {
// use the request body as the auto detect source (if it exists)
return restContentBuilder(request, request.hasContent() ? request.content() : null);
}
public static XContentBuilder restContentBuilder(RestRequest request, @Nullable BytesReference autoDetectSource) throws IOException {
XContentType contentType = XContentType.fromRestContentType(request.param("format", request.header("Content-Type")));
if (contentType == null) {
// try and guess it from the auto detect source
if (autoDetectSource != null) {
contentType = XContentFactory.xContentType(autoDetectSource);
}
}
if (contentType == null) {
// default to JSON
contentType = XContentType.JSON;
}
XContentBuilder builder = new XContentBuilder(XContentFactory.xContent(contentType), new BytesStreamOutput());
if (request.paramAsBoolean("pretty", false)) {
builder.prettyPrint().lfAtEnd();
}
builder.humanReadable(request.paramAsBoolean("human", builder.humanReadable()));
String casing = request.param("case");
if (casing != null && "camelCase".equals(casing)) {
builder.fieldCaseConversion(XContentBuilder.FieldCaseConversion.CAMELCASE);
} else {
// we expect all REST interfaces to write results in underscore casing, so
// no need for double casing
builder.fieldCaseConversion(XContentBuilder.FieldCaseConversion.NONE);
}
return builder;
}
public static XContentBuilder emptyBuilder(RestRequest request) throws IOException {
return restContentBuilder(request, request.hasContent() ? request.content() : null).startObject().endObject();
}
/**
* Directly writes the source to the output builder
*/
public static void directSource(BytesReference source, XContentBuilder rawBuilder, ToXContent.Params params) throws IOException {
XContentHelper.writeDirect(source, rawBuilder, params);
}
public static void restDocumentSource(BytesReference source, XContentBuilder builder, ToXContent.Params params) throws IOException {
XContentHelper.writeRawField("_source", source, builder, params);
}
}