Example usage for org.apache.solr.schema ManagedIndexSchemaFactory ManagedIndexSchemaFactory

Introduction

In this page you can find the example usage for org.apache.solr.schema ManagedIndexSchemaFactory ManagedIndexSchemaFactory.

Prototype

ManagedIndexSchemaFactory

Source Link

Usage

From source file:fr.gael.dhus.system.init.SolrInitializer.java

License:Open Source License

/**
 * Opens and Parses `schema.xml` and adds every fields returned by
 * {@link MetadataTypeService#getSolrFields()}.
 *
 * @param path_to_coredir path to the core's instanceDir.
 * @param path_to_schema path to the schema.xml to edit.
 *
 * @throws ParserConfigurationException An error occured while parsing schema.xml
 * @throws IOException An error occured while accessing schema.xml
 * @throws SAXException An error occured while parsing schema.xml
 *///from   www .j av a2  s. com
public void createSchema(Path path_to_coredir, String path_to_schema)
        throws ParserConfigurationException, IOException, SAXException {
    SolrConfig sc = new SolrConfig(path_to_coredir, SOLR_CONFIG_NAME, null);
    ManagedIndexSchemaFactory misf = new ManagedIndexSchemaFactory();
    NamedList named_list = new NamedList();
    named_list.add("mutable", Boolean.TRUE);
    misf.init(named_list);
    ManagedIndexSchema schema = misf.create(path_to_schema, sc);

    Map<String, SolrField> solrfm = metadataTypeService.getSolrFields();

    List<SchemaField> schemafl = new ArrayList<>(solrfm.size() + 1);

    for (SolrField solrf : solrfm.values()) {
        Map<String, Object> options = new HashMap<>();
        int metadata_properties = DEFAULT;

        if (solrf.isStored() != null) {
            if (solrf.isStored()) {
                options.put("stored", true);
            } else {
                options.put("stored", false);
                metadata_properties &= ~STORED;
            }
        }

        if (solrf.isIndexed() != null) {
            if (solrf.isIndexed()) {
                options.put("indexed", true);
            } else {
                options.put("indexed", false);
                metadata_properties &= ~INDEXED;
            }
        }

        if (solrf.isRequired() != null) {
            if (solrf.isRequired()) {
                options.put("required", true);
                metadata_properties |= REQUIRED;
            } else {
                options.put("required", false);
            }
        }

        if (solrf.isMultiValued() != null) {
            if (solrf.isMultiValued()) {
                options.put("multiValued", true);
                metadata_properties |= MULTIVALUED;
            } else {
                options.put("multiValued", false);
            }
        }

        if (LOGGER.isDebugEnabled()) {
            StringBuilder sb = new StringBuilder("solr field: ").append(solrf.getName());
            sb.append("  type=").append(solrf.getType());
            sb.append("  stored=").append((metadata_properties & STORED) > 0);
            sb.append("  indexed=").append((metadata_properties & INDEXED) > 0);
            sb.append("  required=").append((metadata_properties & REQUIRED) > 0);
            sb.append("  multiValued=").append((metadata_properties & MULTIVALUED) > 0);
            LOGGER.debug(sb.toString());
        }

        SchemaField schemaf;
        if ((schemaf = schema.getFieldOrNull(solrf.getName())) != null) {
            // If already defined with a different type: fatal error!
            if (!schemaf.getType().getTypeName().equals(solrf.getType())) {
                String msg = new StringBuilder().append("Conflicting solr field '").append(solrf.getName())
                        .append("' defined twice with different types: ")
                        .append(schemaf.getType().getTypeName()).append(" and ").append(solrf.getType())
                        .toString();
                throw new RuntimeException(msg);
            }

            int schema_properties = schemaf.getProperties();
            // If already defined with a different properties: fatal error!
            if ((schema_properties & ALLOPTS) != metadata_properties) {
                String msg = new StringBuilder().append("Conflicting solr field '").append(solrf.getName())
                        .append("' defined twice with different properties").toString();
                throw new RuntimeException(msg);
            }

            LOGGER.info(String.format("solr field '%s' already in schema", solrf.getName()));
            continue;
        }

        LOGGER.info(String.format("Adding solr field '%s' in schema", solrf.getName()));

        schemaf = schema.newField(solrf.getName(), solrf.getType(), options);

        schemafl.add(schemaf);
    }

    // Adds new fields and saves the schema.xml
    schema.addFields(schemafl);
}

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