/*
* Copyright (c) 2012. The Genome Analysis Centre, Norwich, UK
* MISO project contacts: Robert Davey, Mario Caccamo @ TGAC
* *********************************************************************
*
* This file is part of MISO.
*
* MISO is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* MISO is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with MISO. If not, see <http://www.gnu.org/licenses/>.
*
* *********************************************************************
*/
package uk.ac.bbsrc.tgac.miso.core.service.printing;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import uk.ac.bbsrc.tgac.miso.core.service.printing.schema.BarcodableSchema;
import java.util.*;
/**
* uk.ac.bbsrc.tgac.miso.core.service.printing
* <p/>
* Info
*
* @author Xingdong Bian
* @date 29/05/13
* @since 0.2.0
*/
public class MisoBarcodableSchemaResolverService implements BarcodableSchemaResolverService {
protected static final Logger log = LoggerFactory.getLogger(MisoBarcodableSchemaResolverService.class);
private Map<String, BarcodableSchema> contextMap;
@Override
public BarcodableSchema getBarcodableSchema(String name) {
for (BarcodableSchema barcodableSchema : getBarcodableSchemas()) {
if (barcodableSchema.getName().equals(name)) {
try {
return barcodableSchema.getClass().newInstance();
}
catch (InstantiationException e) {
log.error("Cannot create a new instance of '" + name + "'", e);
e.printStackTrace();
}
catch (IllegalAccessException e) {
log.error("Cannot create a new instance of '" + name + "'", e);
e.printStackTrace();
}
}
}
log.warn("No schema called '" + name + "' was available on the classpath");
return null;
}
@Override
public Collection<BarcodableSchema> getBarcodableSchemas() {
//lazily load available schemas
if (contextMap == null) {
ServiceLoader<BarcodableSchema> consumerLoader = ServiceLoader.load(BarcodableSchema.class);
Iterator<BarcodableSchema> consumerIterator = consumerLoader.iterator();
contextMap = new HashMap<String, BarcodableSchema>();
while (consumerIterator.hasNext()) {
BarcodableSchema p = consumerIterator.next();
if (!contextMap.containsKey(p.getName())) {
contextMap.put(p.getName(), p);
}
else {
if (contextMap.get(p.getName()) != p) {
String msg = "Multiple different BarcodableSchemas with the same schema name " +
"('" + p.getName() + "') are present on the classpath. Schema names must be unique.";
log.error(msg);
throw new ServiceConfigurationError(msg);
}
}
}
log.info("Loaded " + contextMap.values().size() + " known schemas");
}
return contextMap.values();
}
}