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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.action.admin.indices.mapping.get;
import org.elasticsearch.action.ActionResponse;
import org.elasticsearch.common.bytes.BytesArray;
import org.elasticsearch.common.bytes.BytesReference;
import org.elasticsearch.common.io.stream.StreamInput;
import org.elasticsearch.common.io.stream.StreamOutput;
import org.elasticsearch.common.xcontent.ToXContent;
import org.elasticsearch.common.xcontent.XContentBuilder;
import org.elasticsearch.common.xcontent.XContentHelper;
import org.elasticsearch.common.xcontent.XContentType;
import org.elasticsearch.index.mapper.Mapper;
import java.io.IOException;
import java.util.HashMap;
import java.util.Map;
import static java.util.Collections.emptyMap;
import static java.util.Collections.unmodifiableMap;
/** Response object for {@link GetFieldMappingsRequest} API */
public class GetFieldMappingsResponse extends ActionResponse implements ToXContent {
private Map<String, Map<String, Map<String, FieldMappingMetaData>>> mappings = emptyMap();
GetFieldMappingsResponse(Map<String, Map<String, Map<String, FieldMappingMetaData>>> mappings) {
this.mappings = mappings;
}
GetFieldMappingsResponse() {
}
/** returns the retrieved field mapping. The return map keys are index, type, field (as specified in the request). */
public Map<String, Map<String, Map<String, FieldMappingMetaData>>> mappings() {
return mappings;
}
/**
* Returns the mappings of a specific field.
*
* @param field field name as specified in the {@link GetFieldMappingsRequest}
* @return FieldMappingMetaData for the requested field or null if not found.
*/
public FieldMappingMetaData fieldMappings(String index, String type, String field) {
Map<String, Map<String, FieldMappingMetaData>> indexMapping = mappings.get(index);
if (indexMapping == null) {
return null;
}
Map<String, FieldMappingMetaData> typeMapping = indexMapping.get(type);
if (typeMapping == null) {
return null;
}
return typeMapping.get(field);
}
@Override
public XContentBuilder toXContent(XContentBuilder builder, Params params) throws IOException {
for (Map.Entry<String, Map<String, Map<String, FieldMappingMetaData>>> indexEntry : mappings.entrySet()) {
builder.startObject(indexEntry.getKey());
builder.startObject("mappings");
for (Map.Entry<String, Map<String, FieldMappingMetaData>> typeEntry : indexEntry.getValue().entrySet()) {
builder.startObject(typeEntry.getKey());
for (Map.Entry<String, FieldMappingMetaData> fieldEntry : typeEntry.getValue().entrySet()) {
builder.startObject(fieldEntry.getKey());
fieldEntry.getValue().toXContent(builder, params);
builder.endObject();
}
builder.endObject();
}
builder.endObject();
builder.endObject();
}
return builder;
}
public static class FieldMappingMetaData implements ToXContent {
public static final FieldMappingMetaData NULL = new FieldMappingMetaData("", BytesArray.EMPTY);
private String fullName;
private BytesReference source;
public FieldMappingMetaData(String fullName, BytesReference source) {
this.fullName = fullName;
this.source = source;
}
public String fullName() {
return fullName;
}
/** Returns the mappings as a map. Note that the returned map has a single key which is always the field's {@link Mapper#name}. */
public Map<String, Object> sourceAsMap() {
return XContentHelper.convertToMap(source, true, XContentType.JSON).v2();
}
public boolean isNull() {
return NULL.fullName().equals(fullName) && NULL.source.length() == source.length();
}
//pkg-private for testing
BytesReference getSource() {
return source;
}
@Override
public XContentBuilder toXContent(XContentBuilder builder, Params params) throws IOException {
builder.field("full_name", fullName);
if (params.paramAsBoolean("pretty", false)) {
builder.field("mapping", sourceAsMap());
} else {
builder.rawField("mapping", source, XContentType.JSON);
}
return builder;
}
}
@Override
public void readFrom(StreamInput in) throws IOException {
super.readFrom(in);
int size = in.readVInt();
Map<String, Map<String, Map<String, FieldMappingMetaData>>> indexMapBuilder = new HashMap<>(size);
for (int i = 0; i < size; i++) {
String index = in.readString();
int typesSize = in.readVInt();
Map<String, Map<String, FieldMappingMetaData>> typeMapBuilder = new HashMap<>(typesSize);
for (int j = 0; j < typesSize; j++) {
String type = in.readString();
int fieldSize = in.readVInt();
Map<String, FieldMappingMetaData> fieldMapBuilder = new HashMap<>(fieldSize);
for (int k = 0; k < fieldSize; k++) {
fieldMapBuilder.put(in.readString(), new FieldMappingMetaData(in.readString(), in.readBytesReference()));
}
typeMapBuilder.put(type, unmodifiableMap(fieldMapBuilder));
}
indexMapBuilder.put(index, unmodifiableMap(typeMapBuilder));
}
mappings = unmodifiableMap(indexMapBuilder);
}
@Override
public void writeTo(StreamOutput out) throws IOException {
super.writeTo(out);
out.writeVInt(mappings.size());
for (Map.Entry<String, Map<String, Map<String, FieldMappingMetaData>>> indexEntry : mappings.entrySet()) {
out.writeString(indexEntry.getKey());
out.writeVInt(indexEntry.getValue().size());
for (Map.Entry<String, Map<String, FieldMappingMetaData>> typeEntry : indexEntry.getValue().entrySet()) {
out.writeString(typeEntry.getKey());
out.writeVInt(typeEntry.getValue().size());
for (Map.Entry<String, FieldMappingMetaData> fieldEntry : typeEntry.getValue().entrySet()) {
out.writeString(fieldEntry.getKey());
FieldMappingMetaData fieldMapping = fieldEntry.getValue();
out.writeString(fieldMapping.fullName());
out.writeBytesReference(fieldMapping.source);
}
}
}
}
}