/*
* JBoss, Home of Professional Open Source
* Copyright 2012, Red Hat Middleware LLC, and individual 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.shrinkwrap.resolver.spi.format;
import java.util.Collection;
import org.jboss.shrinkwrap.resolver.api.ResolvedArtifact;
import org.jboss.shrinkwrap.resolver.spi.loader.ServiceRegistry;
/**
*
* @author <a href="mailto:kpiwko@redhat.com">Karel Piwko</a>
*
*/
public final class FormatProcessors {
@SuppressWarnings({ "rawtypes", "unchecked" })
public static <RESOLVEDTYPE extends ResolvedArtifact<RESOLVEDTYPE>, RETURNTYPE> FormatProcessor<? super RESOLVEDTYPE, RETURNTYPE> find(
final Class<RESOLVEDTYPE> resolvedTypeClass, final Class<RETURNTYPE> returnTypeClass) {
ServiceRegistry registry = ServiceRegistry.getInstance();
Collection<FormatProcessor> processors = registry.all(FormatProcessor.class);
StringBuilder unsupportedFormatMessage = new StringBuilder("No format processor for ")
.append(returnTypeClass.getName()).append(
" was found. Supported processors are: ");
for (FormatProcessor processor : processors) {
if (processor.handles(resolvedTypeClass) && processor.returns(returnTypeClass)) {
return processor;
}
unsupportedFormatMessage.append(processor.getClass()).append(", ");
}
// trim
if (unsupportedFormatMessage.indexOf(", ") != -1) {
unsupportedFormatMessage.delete(unsupportedFormatMessage.length() - 2, unsupportedFormatMessage.length());
}
throw new UnsupportedOperationException(unsupportedFormatMessage.toString());
}
}