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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.common.xcontent;
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.cbor.CborXContent;
import org.elasticsearch.common.xcontent.json.JsonXContent;
import org.elasticsearch.common.xcontent.smile.SmileXContent;
import org.elasticsearch.common.xcontent.yaml.YamlXContent;
import java.io.IOException;
import java.util.Locale;
/**
* The content type of {@link org.elasticsearch.common.xcontent.XContent}.
*/
public enum XContentType implements Writeable {
/**
* A JSON based content type.
*/
JSON(0) {
@Override
protected String mediaTypeWithoutParameters() {
return "application/json";
}
@Override
public String mediaType() {
return "application/json; charset=UTF-8";
}
@Override
public String shortName() {
return "json";
}
@Override
public XContent xContent() {
return JsonXContent.jsonXContent;
}
},
/**
* The jackson based smile binary format. Fast and compact binary format.
*/
SMILE(1) {
@Override
protected String mediaTypeWithoutParameters() {
return "application/smile";
}
@Override
public String shortName() {
return "smile";
}
@Override
public XContent xContent() {
return SmileXContent.smileXContent;
}
},
/**
* A YAML based content type.
*/
YAML(2) {
@Override
protected String mediaTypeWithoutParameters() {
return "application/yaml";
}
@Override
public String shortName() {
return "yaml";
}
@Override
public XContent xContent() {
return YamlXContent.yamlXContent;
}
},
/**
* A CBOR based content type.
*/
CBOR(3) {
@Override
protected String mediaTypeWithoutParameters() {
return "application/cbor";
}
@Override
public String shortName() {
return "cbor";
}
@Override
public XContent xContent() {
return CborXContent.cborXContent;
}
};
public static XContentType fromMediaTypeOrFormat(String mediaType) {
if (mediaType == null) {
return null;
}
for (XContentType type : values()) {
if (isSameMediaTypeAs(mediaType, type)) {
return type;
}
}
if(mediaType.toLowerCase(Locale.ROOT).startsWith("application/*")) {
return JSON;
}
return null;
}
private static boolean isSameMediaTypeAs(String stringType, XContentType type) {
return type.mediaTypeWithoutParameters().equalsIgnoreCase(stringType) ||
stringType.toLowerCase(Locale.ROOT).startsWith(type.mediaTypeWithoutParameters().toLowerCase(Locale.ROOT) + ";") ||
type.shortName().equalsIgnoreCase(stringType);
}
private int index;
XContentType(int index) {
this.index = index;
}
public int index() {
return index;
}
public String mediaType() {
return mediaTypeWithoutParameters();
}
public abstract String shortName();
public abstract XContent xContent();
protected abstract String mediaTypeWithoutParameters();
public static XContentType readFrom(StreamInput in) throws IOException {
int index = in.readVInt();
for (XContentType contentType : values()) {
if (index == contentType.index) {
return contentType;
}
}
throw new IllegalStateException("Unknown XContentType with index [" + index + "]");
}
@Override
public void writeTo(StreamOutput out) throws IOException {
out.writeVInt(index);
}
}
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