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// Copyright Vespa.ai. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
package com.yahoo.vespa.model.application.validation.change.search;
import com.yahoo.schema.Schema;
import com.yahoo.schema.document.ImmutableSDField;
import com.yahoo.schema.document.Matching;
import com.yahoo.schema.document.MatchType;
import com.yahoo.schema.document.NormalizeLevel;
import com.yahoo.schema.document.Stemming;
import com.yahoo.schema.processing.NGramMatch;
import com.yahoo.vespa.documentmodel.SummaryField;
import com.yahoo.vespa.documentmodel.SummaryTransform;
/**
* Class used to build a message describing the usual field changes causing changes in the indexing script.
* This message should be more descriptive for the end-user than just seeing the changed indexing script.
*
* @author geirst
*/
public class IndexingScriptChangeMessageBuilder {
private final Schema currentSchema;
private final ImmutableSDField currentField;
private final Schema nextSchema;
private final ImmutableSDField nextField;
public IndexingScriptChangeMessageBuilder(Schema currentSchema, ImmutableSDField currentField,
Schema nextSchema, ImmutableSDField nextField) {
this.currentSchema = currentSchema;
this.currentField = currentField;
this.nextSchema = nextSchema;
this.nextField = nextField;
}
public void populate(ChangeMessageBuilder builder) {
checkIndexing(builder);
checkMatching(builder);
checkStemming(builder);
checkNormalizing(builder);
checkSummaryTransform(builder);
}
private void checkIndexing(ChangeMessageBuilder builder) {
if (currentField.doesIndexing() != nextField.doesIndexing()) {
String change = nextField.doesIndexing() ? "add" : "remove";
builder.addChange(change + " index aspect");
}
}
private void checkMatching(ChangeMessageBuilder builder) {
Matching currentMatching = currentField.getMatching();
Matching nextMatching = nextField.getMatching();
if (!currentMatching.equals(nextMatching)) {
builder.addChange("matching", toString(currentMatching), toString(nextMatching));
}
}
private void checkStemming(ChangeMessageBuilder builder) {
Stemming currentStemming = currentField.getStemming(currentSchema);
Stemming nextStemming = nextField.getStemming(nextSchema);
if (currentStemming != nextStemming) {
builder.addChange("stemming", currentStemming.getName(), nextStemming.getName());
}
}
private void checkNormalizing(ChangeMessageBuilder builder) {
NormalizeLevel.Level currentLevel = currentField.getNormalizing().getLevel();
NormalizeLevel.Level nextLevel = nextField.getNormalizing().getLevel();
if (currentLevel != nextLevel) {
builder.addChange("normalizing", currentLevel.toString(), nextLevel.toString());
}
}
private void checkSummaryTransform(ChangeMessageBuilder builder) {
for (SummaryField nextSummaryField : nextField.getSummaryFields().values()) {
String fieldName = nextSummaryField.getName();
SummaryField currentSummaryField = currentField.getSummaryField(fieldName);
if (currentSummaryField != null) {
SummaryTransform currentTransform = currentSummaryField.getTransform();
SummaryTransform nextTransform = nextSummaryField.getTransform();
if (currentSummaryField.getTransform() != nextSummaryField.getTransform()) {
builder.addChange("summary field '" + fieldName + "' transform",
currentTransform.getName(), nextTransform.getName());
}
}
}
}
private static String toString(Matching matching) {
MatchType type = matching.getType();
String retval = type.getName();
if (type == MatchType.GRAM) {
retval += " (size " + matching.getGramSize().orElse(NGramMatch.DEFAULT_GRAM_SIZE) + ")";
}
return retval;
}
}
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