/*
* Hibernate Search, full-text search for your domain model
*
* License: GNU Lesser General Public License (LGPL), version 2.1 or later
* See the lgpl.txt file in the root directory or <http://www.gnu.org/licenses/lgpl-2.1.html>.
*/
package org.hibernate.search.elasticsearch.work.impl;
import org.elasticsearch.client.Response;
import org.hibernate.search.elasticsearch.client.impl.ElasticsearchRequest;
import org.hibernate.search.elasticsearch.client.impl.Paths;
import org.hibernate.search.elasticsearch.client.impl.URLEncodedString;
import org.hibernate.search.elasticsearch.gson.impl.GsonProvider;
import org.hibernate.search.elasticsearch.settings.impl.model.IndexSettings;
import org.hibernate.search.elasticsearch.work.impl.builder.GetIndexSettingsWorkBuilder;
import org.hibernate.search.exception.AssertionFailure;
import com.google.gson.JsonElement;
import com.google.gson.JsonObject;
public class GetIndexSettingsWork extends SimpleElasticsearchWork<IndexSettings> {
private final URLEncodedString indexName;
protected GetIndexSettingsWork(Builder builder) {
super( builder );
this.indexName = builder.indexName;
}
@Override
protected IndexSettings generateResult(ElasticsearchWorkExecutionContext context,
Response response, JsonObject parsedResponseBody) {
JsonElement index = parsedResponseBody.get( indexName.original );
if ( index == null || !index.isJsonObject() ) {
throw new AssertionFailure( "Elasticsearch API call succeeded, but the requested index wasn't mentioned in the result: " + parsedResponseBody );
}
JsonElement settings = index.getAsJsonObject().get( "settings" );
if ( settings == null || !settings.isJsonObject() ) {
throw new AssertionFailure( "Elasticsearch API call succeeded, but the requested settings weren't mentioned in the result: " + parsedResponseBody );
}
JsonElement indexSettings = settings.getAsJsonObject().get( "index" );
if ( indexSettings != null ) {
GsonProvider gsonProvider = context.getGsonProvider();
return gsonProvider.getGson().fromJson( indexSettings, IndexSettings.class );
}
else {
// Empty settings
return new IndexSettings();
}
}
public static class Builder
extends SimpleElasticsearchWork.Builder<Builder>
implements GetIndexSettingsWorkBuilder {
private final URLEncodedString indexName;
public Builder(URLEncodedString indexName) {
super( null, DefaultElasticsearchRequestSuccessAssessor.INSTANCE );
this.indexName = indexName;
}
@Override
protected ElasticsearchRequest buildRequest() {
ElasticsearchRequest.Builder builder =
ElasticsearchRequest.get()
.pathComponent( indexName )
.pathComponent( Paths._SETTINGS );
return builder.build();
}
@Override
public GetIndexSettingsWork build() {
return new GetIndexSettingsWork( this );
}
}
}