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// Copyright 2017 Yahoo Holdings. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
package com.yahoo.searchdefinition.fieldoperation;
import com.yahoo.language.Linguistics;
import com.yahoo.language.process.Encoder;
import com.yahoo.language.simple.SimpleLinguistics;
import com.yahoo.searchdefinition.document.SDField;
import com.yahoo.searchdefinition.parser.ParseException;
import com.yahoo.searchdefinition.parser.SimpleCharStream;
import com.yahoo.vespa.indexinglanguage.ScriptParserContext;
import com.yahoo.vespa.indexinglanguage.expressions.ScriptExpression;
import com.yahoo.vespa.indexinglanguage.expressions.StatementExpression;
import com.yahoo.vespa.indexinglanguage.linguistics.AnnotatorConfig;
/**
* @author Einar M R Rosenvinge
*/
public class IndexingOperation implements FieldOperation {
private final ScriptExpression script;
public IndexingOperation(ScriptExpression script) {
this.script = script;
}
public void apply(SDField field) {
field.setIndexingScript(script);
}
/** Creates an indexing operation which will use the simple linguistics implementation suitable for testing */
public static IndexingOperation fromStream(SimpleCharStream input, boolean multiLine) throws ParseException {
return fromStream(input, multiLine, new SimpleLinguistics(), Encoder.throwsOnUse);
}
public static IndexingOperation fromStream(SimpleCharStream input, boolean multiLine,
Linguistics linguistics, Encoder encoder)
throws ParseException {
ScriptParserContext config = new ScriptParserContext(linguistics, encoder);
config.setAnnotatorConfig(new AnnotatorConfig());
config.setInputStream(input);
ScriptExpression exp;
try {
if (multiLine) {
exp = ScriptExpression.newInstance(config);
} else {
exp = new ScriptExpression(StatementExpression.newInstance(config));
}
} catch (com.yahoo.vespa.indexinglanguage.parser.ParseException e) {
ParseException t = new ParseException("Error reported by IL parser: " + e.getMessage());
t.initCause(e);
throw t;
}
return new IndexingOperation(exp);
}
}
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