public SimpleQParser(
String qstr, SolrParams localParams, SolrParams params, SolrQueryRequest req) {
super(qstr, localParams, params, req);
// Some of the parameters may come in through localParams, so combine them with params.
SolrParams defaultParams = SolrParams.wrapDefaults(localParams, params);
// This will be used to specify what fields and boosts will be used by SimpleQueryParser.
Map<String, Float> queryFields =
SolrPluginUtils.parseFieldBoosts(defaultParams.get(SimpleParams.QF));
if (queryFields.isEmpty()) {
// It qf is not specified setup up the queryFields map to use the defaultField.
String defaultField =
QueryParsing.getDefaultField(req.getSchema(), defaultParams.get(CommonParams.DF));
if (defaultField == null) {
// A query cannot be run without having a field or set of fields to run against.
throw new IllegalStateException(
"Neither "
+ SimpleParams.QF
+ ", "
+ CommonParams.DF
+ ", nor the default search field are present.");
}
queryFields.put(defaultField, 1.0F);
} else {
for (Map.Entry<String, Float> queryField : queryFields.entrySet()) {
if (queryField.getValue() == null) {
// Some fields may be specified without a boost, so default the boost to 1.0 since a
// null value
// will not be accepted by SimpleQueryParser.
queryField.setValue(1.0F);
}
}
}
// Setup the operations that are enabled for the query.
int enabledOps = 0;
String opParam = defaultParams.get(SimpleParams.QO);
if (opParam == null) {
// All operations will be enabled.
enabledOps = -1;
} else {
// Parse the specified enabled operations to be used by the query.
String[] operations = opParam.split(",");
for (String operation : operations) {
Integer enabledOp = OPERATORS.get(operation.trim().toUpperCase(Locale.ROOT));
if (enabledOp != null) {
enabledOps |= enabledOp;
}
}
}
// Create a SimpleQueryParser using the analyzer from the schema.
final IndexSchema schema = req.getSchema();
parser =
new SolrSimpleQueryParser(
req.getSchema().getQueryAnalyzer(), queryFields, enabledOps, this, schema);
// Set the default operator to be either 'AND' or 'OR' for the query.
QueryParser.Operator defaultOp =
QueryParsing.getQueryParserDefaultOperator(
req.getSchema(), defaultParams.get(QueryParsing.OP));
if (defaultOp == QueryParser.Operator.AND) {
parser.setDefaultOperator(BooleanClause.Occur.MUST);
}
}
@Override
public Query parse() throws SyntaxError {
return parser.parse(qstr);
}