org.elasticsearch.rest.XContentRestResponse Maven / Gradle / Ivy
Go to download
Show more of this group Show more artifacts with this name
Show all versions of elasticsearch Show documentation
Show all versions of elasticsearch Show documentation
Elasticsearch subproject :server
/*
* Licensed to Elastic Search and Shay Banon under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. Elastic Search 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.apache.lucene.util.UnicodeUtil;
import org.elasticsearch.common.thread.ThreadLocals;
import org.elasticsearch.common.xcontent.XContentBuilder;
import java.io.IOException;
/**
* @author kimchy (shay.banon)
*/
public class XContentRestResponse extends AbstractRestResponse {
private static final byte[] END_JSONP;
static {
UnicodeUtil.UTF8Result U_END_JSONP = new UnicodeUtil.UTF8Result();
UnicodeUtil.UTF16toUTF8(");", 0, ");".length(), U_END_JSONP);
END_JSONP = new byte[U_END_JSONP.length];
System.arraycopy(U_END_JSONP.result, 0, END_JSONP, 0, U_END_JSONP.length);
}
private static ThreadLocal> prefixCache = new ThreadLocal>() {
@Override protected ThreadLocals.CleanableValue initialValue() {
return new ThreadLocals.CleanableValue(new UnicodeUtil.UTF8Result());
}
};
private final UnicodeUtil.UTF8Result prefixUtf8Result;
private final Status status;
private final XContentBuilder builder;
public XContentRestResponse(RestRequest request, Status status) {
this.builder = null;
this.status = status;
this.prefixUtf8Result = startJsonp(request);
}
public XContentRestResponse(RestRequest request, Status status, XContentBuilder builder) throws IOException {
this.builder = builder;
this.status = status;
this.prefixUtf8Result = startJsonp(request);
}
@Override public String contentType() {
return builder.contentType().restContentType();
}
@Override public boolean contentThreadSafe() {
return false;
}
@Override public byte[] content() throws IOException {
return builder.unsafeBytes();
}
@Override public int contentLength() throws IOException {
return builder.unsafeBytesLength();
}
@Override public Status status() {
return this.status;
}
@Override public byte[] prefixContent() {
if (prefixUtf8Result != null) {
return prefixUtf8Result.result;
}
return null;
}
@Override public int prefixContentLength() {
if (prefixUtf8Result != null) {
return prefixUtf8Result.length;
}
return -1;
}
@Override public byte[] suffixContent() {
if (prefixUtf8Result != null) {
return END_JSONP;
}
return null;
}
@Override public int suffixContentLength() {
if (prefixUtf8Result != null) {
return END_JSONP.length;
}
return -1;
}
private static UnicodeUtil.UTF8Result startJsonp(RestRequest request) {
String callback = request.param("callback");
if (callback == null) {
return null;
}
UnicodeUtil.UTF8Result result = prefixCache.get().get();
UnicodeUtil.UTF16toUTF8(callback, 0, callback.length(), result);
result.result[result.length] = '(';
result.length++;
return result;
}
}