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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.document.predicate;
import java.util.Arrays;
import java.util.Collection;
import java.util.Iterator;
import java.util.Objects;
import java.util.Set;
import java.util.TreeSet;
/**
* @author Simon Thoresen Hult
*/
public class FeatureSet extends PredicateValue {
private Set<String> values;
private String key;
public FeatureSet(String key, String... values) {
this(key, Arrays.asList(values));
}
public FeatureSet(String key, Collection<String> values) {
Objects.requireNonNull(key, "key");
if (values == null) {
throw new NullPointerException("values");
}
this.key = key;
this.values = new TreeSet<>(values);
}
public FeatureSet setKey(String key) {
Objects.requireNonNull(key, "key");
this.key = key;
return this;
}
public String getKey() {
return key;
}
public FeatureSet addValue(String value) {
Objects.requireNonNull(value, "value");
values.add(value);
return this;
}
public FeatureSet addValues(Collection<String> values) {
if (values == null) {
throw new NullPointerException("values");
}
this.values.addAll(values);
return this;
}
public FeatureSet setValues(Collection<String> values) {
if (values == null) {
throw new NullPointerException("values");
}
this.values.clear();
this.values.addAll(values);
return this;
}
public Set<String> getValues() {
return values;
}
@Override
public FeatureSet clone() throws CloneNotSupportedException {
FeatureSet obj = (FeatureSet)super.clone();
obj.values = new TreeSet<>(values);
return obj;
}
@Override
public int hashCode() {
return (key.hashCode() + values.hashCode()) * 31;
}
@Override
public boolean equals(Object obj) {
if (obj == this) {
return true;
}
if (!(obj instanceof FeatureSet)) {
return false;
}
FeatureSet rhs = (FeatureSet)obj;
if (!key.equals(rhs.key)) {
return false;
}
if (!values.equals(rhs.values)) {
return false;
}
return true;
}
@Override
protected void appendTo(StringBuilder out) {
appendInAsTo("in", out);
}
protected void appendNegatedTo(StringBuilder out) {
appendInAsTo("not in", out);
}
private void appendInAsTo(String in, StringBuilder out) {
appendQuotedTo(key, out);
out.append(' ').append(in).append(" [");
for (Iterator<String> it = values.iterator(); it.hasNext(); ) {
appendQuotedTo(it.next(), out);
if (it.hasNext()) {
out.append(", ");
}
}
out.append("]");
}
}
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