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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.indexinglanguage.expressions;
import com.yahoo.document.DataType;
import com.yahoo.document.datatypes.StringFieldValue;
import static com.yahoo.vespa.defaults.Defaults.getDefaults;
/**
* @author Simon Thoresen Hult
*/
public final class HostNameExpression extends Expression {
public HostNameExpression() {
super(null);
}
@Override
protected void doExecute(ExecutionContext context) {
context.setValue(new StringFieldValue(normalizeHostName(getDefaults().vespaHostname())));
}
@Override
protected void doVerify(VerificationContext context) {
context.setValueType(createdOutputType());
}
@Override
public DataType createdOutputType() {
return DataType.STRING;
}
@Override
public String toString() {
return "hostname";
}
@Override
public boolean equals(Object obj) {
if (!(obj instanceof HostNameExpression)) {
return false;
}
return true;
}
@Override
public int hashCode() {
return getClass().hashCode();
}
public static String normalizeHostName(String hostName) {
int pos = hostName.indexOf('.');
return pos < 0 ? hostName : hostName.substring(0, pos);
}
}
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