Caused by: org.hibernate.search.exception.SearchException: HSEARCH000114: Could not load resource: 'synonyms.txt'

Question

I am using Hibernate search in spring boot for the first time and trying to define my own german synonyms and I am using this code:

@AnalyzerDef(name = "edgeNgram",
            tokenizer = @TokenizerDef(factory = WhitespaceTokenizerFactory.class),
            filters = {
                    @TokenFilterDef(factory = ASCIIFoldingFilterFactory.class), // Replace accented characeters by their simpler counterpart (è => e, etc.)
                    @TokenFilterDef(factory = LowerCaseFilterFactory.class), // Lowercase all characters
                    @TokenFilterDef(
                            factory = EdgeNGramFilterFactory.class, // Generate prefix tokens
                            params = {
                                    @Parameter(name = "minGramSize", value = "2"),
                                    @Parameter(name = "maxGramSize", value = "4")
                            }
                    ),
                    @TokenFilterDef(
                            factory = SynonymFilterFactory.class,
                            params = {
                                    @Parameter(name = "ignoreCase", value = "true"),
                                    @Parameter(name = "expand", value = "true"),
                                    @Parameter(name = "synonyms", value = "synonyms.txt"),
                            })

            })

when I use "factory = SynonymFilterFactory.class" and define my "synonyms.txt" file I get the error:

Caused by: org.hibernate.search.exception.SearchException: HSEARCH000114: Could not load resource: 'synonyms.txt'

I am new to spring boot and will appreciate any help! thanks

Answer 1

This:

                                    @Parameter(name = "synonyms", value = "synonyms.txt")

Means you're asking Hibernate Search to load a file named synonyms.txt from your classpath, and extract the list of synonyms from there.

If you don't have a file named synonyms.txt at the root of your classpath, you'll get this exception.

Add the file and everything should be back in order.

See the javadoc of org.apache.lucene.analysis.synonym.SolrSynonymParser for an explanation of the format of this file.