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SystemPropertiesConfigurationPlaceholderResolver.java
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SystemPropertiesConfigurationPlaceholderResolver.java
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/*
* JBoss, Home of Professional Open Source
* Copyright 2011 Red Hat Inc. and/or its affiliates and other contributors
* by the @authors tag. See the copyright.txt in the distribution for a
* full listing of individual contributors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
* http://www.apache.org/licenses/LICENSE-2.0
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.jboss.arquillian.config.impl.extension;
import org.jboss.arquillian.config.descriptor.api.ArquillianDescriptor;
import org.jboss.arquillian.config.spi.ConfigurationPlaceholderResolver;
import org.jboss.shrinkwrap.descriptor.api.Descriptors;
/**
* External utility capable of accepting a {@link ArquillianDescriptor},
* replacing any sysprop EL expressions with a proper value or default,
* and returning a new instance of the {@link ArquillianDescriptor}.
* Fulfills ARQ-148.
* <p>
* TODO To eventually become part of a chain-based event mechanism
* as defined by ARQ-284.
*
* @author <a href="mailto:alr@jboss.org">Andrew Lee Rubinger</a>
*/
class SystemPropertiesConfigurationPlaceholderResolver implements ConfigurationPlaceholderResolver {
/**
* Returns a new instance of {@link ArquillianDescriptor} by resolving any
* sysprop EL expressions in the provided {@link ArquillianDescriptor} to real
* values or defaults
*
* @param descriptor
* The input to resolve, required
*
* @throws IllegalArgumentException
*/
private ArquillianDescriptor resolveSystemProperties(final ArquillianDescriptor descriptor)
throws IllegalArgumentException {
final String descriptorAsString = descriptor.exportAsString();
return Descriptors.importAs(ArquillianDescriptor.class)
.fromString(StringPropertyReplacer.replaceProperties(descriptorAsString));
}
public ArquillianDescriptor resolve(ArquillianDescriptor arquillianDescriptor) {
return resolveSystemProperties(arquillianDescriptor);
}
public int precedence() {
return 0;
}
}