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/*******************************************************************************
* Copyright (c) 2010, 2017 Cloudsmith Inc. and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* Cloudsmith Inc. - initial API and implementation
*******************************************************************************/
package org.eclipse.equinox.internal.p2.metadata.expression;
/**
* A function that obtains a class based on a String
*/
public final class ClassFunction extends Function {
public ClassFunction(Expression[] operands) {
super(assertLength(operands, 1, 1, KEYWORD_CLASS));
}
@Override
boolean assertSingleArgumentClass(Object v) {
return v instanceof String;
}
@Override
Object createInstance(Object arg) {
try {
return Class.forName((String) arg);
} catch (ClassNotFoundException e) {
throw new IllegalArgumentException(e.getMessage(), e);
}
}
@Override
public String getOperator() {
return KEYWORD_CLASS;
}
}
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