Set Spring SolrDocument Collection name based on PropertyValue - spring

Question

I want to set values Spring SolrDocument Collection based on application.yml value.
#Data
#SolrDocument(collection = #Value("${solr.core}"))
public class SearchableProduct {
}

Answer 1

Hoi Michela,
Ok, I had the same Problem and I found a solution: SpEL
it is described in details here:Spring Data for Apache Solr
you have to add the EL-expression to the Annotation
#SolrDocument(collection = "#{#serverSolrContext.getCollectionName()}")
public class SOLREntity implements Serializable {
.....
}
you have to provide a the serverSolrContext Bean with the method getCollectionName().
#Value("${solr.core}")
private String core;
public String getCollectionName() {
return core;
}
you have to write in our application.properties the following core entry.
solr.core=myOwnCoreName
That's it actually, BUT
if you get the following Exception, so as I did:
org.springframework.expression.spel.SpelEvaluationException: EL1057E: No bean resolver registered in the context to resolve access to bean
You have to have the following in your Configuration Bean
#Configuration
#EnableSolrRepositories(basePackages = { "de.solr.db" })
#Profile("default")
#PropertySource("classpath:application.properties")
public class ServerSolrContext extends AbstractSolrConfiguration {
private static final Logger logger = LoggerFactory.getLogger(ServerSolrContext.class);
#Resource
private Environment environment;
#Value("${solr.core}")
private String core;
public String getCollectionName() {
return core;
}
#PostConstruct
public void init() {
System.out.println(core);
}
#Bean
public SolrClient solrClient() {
String url = environment.getProperty("solr.server.url");
String user = environment.getProperty("solr.server.user");
String password = environment.getProperty("solr.server.password");
CredentialsProvider credentialsProvider = new BasicCredentialsProvider();
credentialsProvider.setCredentials(new AuthScope(AuthScope.ANY_HOST, AuthScope.ANY_PORT),
new UsernamePasswordCredentials(user, password));
SSLContext sslContext = null;
try {
sslContext = ReportConfiguration.getTrustAllContext();
}
catch (KeyManagementException | NoSuchAlgorithmException e) {
e.printStackTrace();
}
LayeredConnectionSocketFactory sslSocketFactory = new SSLConnectionSocketFactory(sslContext);
HttpClient httpClient = HttpClientBuilder.create().setSSLSocketFactory(sslSocketFactory)
.addInterceptorFirst(new PreemptiveAuthInterceptor()).setDefaultCredentialsProvider(credentialsProvider)
.build();
SolrClient client = new HttpSolrClient.Builder().withHttpClient(httpClient).withBaseSolrUrl(url).build();
return client;
}
#Bean
#ConditionalOnMissingBean(name = "solrTemplate")
public SolrTemplate solrTemplate(#Qualifier("mySolrTemplate") SolrTemplate solrTemplate) {
return solrTemplate;
}
#Bean("mySolrTemplate")
public SolrTemplate mySolrTemplate(SolrClient solrClient, SolrConverter solrConverter) {
return new SolrTemplate(new HttpSolrClientFactory(solrClient), solrConverter);
}
#Override
public SolrClientFactory solrClientFactory() {
return new HttpSolrClientFactory(solrClient());
}
}
The last 3 Methods are doing the Trick, that cost me a while to find the right solution:
it is here, so actually I was lucky to find this:
Allow PropertyPlaceholders in #SolrDocument solrCoreName