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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.component;
/**
* Splits and component id or component specification string into their constituent parts.
*
* @author Tony Vaagenes
*/
class SpecSplitter {
final String name;
final String version;
final ComponentId namespace;
SpecSplitter(String spec) {
int indexOfAlpha = spec.indexOf('@');
String nameAndVersion = spec;
if (indexOfAlpha != -1) {
if (indexOfAlpha == spec.length() - 1) {
throw new RuntimeException("Expected characters after '@'");
}
nameAndVersion = spec.substring(0, indexOfAlpha);
namespace = ComponentId.fromString(spec.substring(indexOfAlpha + 1));
} else {
namespace = null;
}
int indexOfColon = nameAndVersion.indexOf(':');
if (indexOfColon != -1) {
if (indexOfColon == nameAndVersion.length() - 1) {
throw new RuntimeException("Expected characters after ':'");
}
name = nameAndVersion.substring(0, indexOfColon);
version = nameAndVersion.substring(indexOfColon+1);
} else {
name = nameAndVersion;
version = null;
}
}
}
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