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Added support for aliases to create index api
It is now possible to specify aliases during index creation:
curl -XPUT 'http://localhost:9200/test' -d '
{
"aliases" : {
"alias1" : {},
"alias2" : {
"filter" : { "term" : {"field":"value"}}
}
}
}'
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234 changes: 234 additions & 0 deletions
234
src/main/java/org/elasticsearch/action/admin/indices/alias/Alias.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,234 @@ | ||
| /* | ||
| * 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.alias; | ||
|
|
||
| import org.elasticsearch.ElasticsearchGenerationException; | ||
| import org.elasticsearch.ElasticsearchIllegalArgumentException; | ||
| import org.elasticsearch.common.Nullable; | ||
| import org.elasticsearch.common.io.stream.StreamInput; | ||
| import org.elasticsearch.common.io.stream.StreamOutput; | ||
| import org.elasticsearch.common.io.stream.Streamable; | ||
| import org.elasticsearch.common.xcontent.*; | ||
| import org.elasticsearch.index.query.FilterBuilder; | ||
|
|
||
| import java.io.IOException; | ||
| import java.util.Map; | ||
|
|
||
| /** | ||
| * Represents an alias, to be associated with an index | ||
| */ | ||
| public class Alias implements Streamable { | ||
|
|
||
| private String name; | ||
|
|
||
| @Nullable | ||
| private String filter; | ||
|
|
||
| @Nullable | ||
| private String indexRouting; | ||
|
|
||
| @Nullable | ||
| private String searchRouting; | ||
|
|
||
| private Alias() { | ||
|
|
||
| } | ||
|
|
||
| public Alias(String name) { | ||
| this.name = name; | ||
| } | ||
|
|
||
| public Alias(String name, String filter) { | ||
| this.name = name; | ||
| this.filter = filter; | ||
| } | ||
|
|
||
| /** | ||
| * Returns the alias name | ||
| */ | ||
| public String name() { | ||
| return name; | ||
| } | ||
|
|
||
| /** | ||
| * Returns the filter associated with the alias | ||
| */ | ||
| public String filter() { | ||
| return filter; | ||
| } | ||
|
|
||
| /** | ||
| * Associates a filter to the alias | ||
| */ | ||
| public Alias filter(String filter) { | ||
| this.filter = filter; | ||
| return this; | ||
| } | ||
|
|
||
| /** | ||
| * Associates a filter to the alias | ||
| */ | ||
| public Alias filter(Map<String, Object> filter) { | ||
| if (filter == null || filter.isEmpty()) { | ||
| this.filter = null; | ||
| return this; | ||
| } | ||
| try { | ||
| XContentBuilder builder = XContentFactory.contentBuilder(XContentType.JSON); | ||
| builder.map(filter); | ||
| this.filter = builder.string(); | ||
| return this; | ||
| } catch (IOException e) { | ||
| throw new ElasticsearchGenerationException("Failed to generate [" + filter + "]", e); | ||
| } | ||
| } | ||
|
|
||
| /** | ||
| * Associates a filter to the alias | ||
| */ | ||
| public Alias filter(FilterBuilder filterBuilder) { | ||
| if (filterBuilder == null) { | ||
| this.filter = null; | ||
| return this; | ||
| } | ||
| try { | ||
| XContentBuilder builder = XContentFactory.jsonBuilder(); | ||
| filterBuilder.toXContent(builder, ToXContent.EMPTY_PARAMS); | ||
| builder.close(); | ||
| this.filter = builder.string(); | ||
| return this; | ||
| } catch (IOException e) { | ||
| throw new ElasticsearchGenerationException("Failed to build json for alias request", e); | ||
| } | ||
| } | ||
|
|
||
| /** | ||
| * Associates a routing value to the alias | ||
| */ | ||
| public Alias routing(String routing) { | ||
| this.indexRouting = routing; | ||
| this.searchRouting = routing; | ||
| return this; | ||
| } | ||
|
|
||
| /** | ||
| * Returns the index routing value associated with the alias | ||
| */ | ||
| public String indexRouting() { | ||
| return indexRouting; | ||
| } | ||
|
|
||
| /** | ||
| * Associates an index routing value to the alias | ||
| */ | ||
| public Alias indexRouting(String indexRouting) { | ||
| this.indexRouting = indexRouting; | ||
| return this; | ||
| } | ||
|
|
||
| /** | ||
| * Returns the search routing value associated with the alias | ||
| */ | ||
| public String searchRouting() { | ||
| return searchRouting; | ||
| } | ||
|
|
||
| /** | ||
| * Associates a search routing value to the alias | ||
| */ | ||
| public Alias searchRouting(String searchRouting) { | ||
| this.searchRouting = searchRouting; | ||
| return this; | ||
| } | ||
|
|
||
| /** | ||
| * Allows to read an alias from the provided input stream | ||
| */ | ||
| public static Alias read(StreamInput in) throws IOException { | ||
| Alias alias = new Alias(); | ||
| alias.readFrom(in); | ||
| return alias; | ||
| } | ||
|
|
||
| @Override | ||
| public void readFrom(StreamInput in) throws IOException { | ||
| name = in.readString(); | ||
| filter = in.readOptionalString(); | ||
| indexRouting = in.readOptionalString(); | ||
| searchRouting = in.readOptionalString(); | ||
| } | ||
|
|
||
| @Override | ||
| public void writeTo(StreamOutput out) throws IOException { | ||
| out.writeString(name); | ||
| out.writeOptionalString(filter); | ||
| out.writeOptionalString(indexRouting); | ||
| out.writeOptionalString(searchRouting); | ||
| } | ||
|
|
||
| /** | ||
| * Parses an alias and returns its parsed representation | ||
| */ | ||
| public static Alias fromXContent(XContentParser parser) throws IOException { | ||
| Alias alias = new Alias(parser.currentName()); | ||
|
|
||
| String currentFieldName = null; | ||
| XContentParser.Token token = parser.nextToken(); | ||
| if (token == null) { | ||
| throw new ElasticsearchIllegalArgumentException("No alias is specified"); | ||
| } | ||
| while ((token = parser.nextToken()) != XContentParser.Token.END_OBJECT) { | ||
| if (token == XContentParser.Token.FIELD_NAME) { | ||
| currentFieldName = parser.currentName(); | ||
| } else if (token == XContentParser.Token.START_OBJECT) { | ||
| if ("filter".equals(currentFieldName)) { | ||
| Map<String, Object> filter = parser.mapOrdered(); | ||
| alias.filter(filter); | ||
| } | ||
| } else if (token == XContentParser.Token.VALUE_STRING) { | ||
| if ("routing".equals(currentFieldName)) { | ||
| alias.routing(parser.text()); | ||
| } else if ("index_routing".equals(currentFieldName) || "indexRouting".equals(currentFieldName) || "index-routing".equals(currentFieldName)) { | ||
| alias.indexRouting(parser.text()); | ||
| } else if ("search_routing".equals(currentFieldName) || "searchRouting".equals(currentFieldName) || "search-routing".equals(currentFieldName)) { | ||
| alias.searchRouting(parser.text()); | ||
| } | ||
| } | ||
| } | ||
| return alias; | ||
| } | ||
|
|
||
| @Override | ||
| public boolean equals(Object o) { | ||
| if (this == o) return true; | ||
| if (o == null || getClass() != o.getClass()) return false; | ||
|
|
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| Alias alias = (Alias) o; | ||
|
|
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| if (name != null ? !name.equals(alias.name) : alias.name != null) return false; | ||
|
|
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| return true; | ||
| } | ||
|
|
||
| @Override | ||
| public int hashCode() { | ||
| return name != null ? name.hashCode() : 0; | ||
| } | ||
| } |
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