/*
* Copyright (c) MuleSoft, Inc. All rights reserved. http://www.mulesoft.com
* The software in this package is published under the terms of the CPAL v1.0
* license, a copy of which has been included with this distribution in the
* LICENSE.txt file.
*/
package org.mule.runtime.core.internal.transformer;
import org.mule.runtime.api.metadata.DataType;
import org.mule.runtime.core.api.transformer.DataTypeConversionResolver;
import org.mule.runtime.core.api.MuleContext;
import org.mule.runtime.core.api.transformer.Transformer;
import org.mule.runtime.core.api.transformer.TransformerException;
import java.util.List;
import javax.inject.Inject;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
/**
* Resolves data type conversion finding an appropriate converter that is able to execute the required transformation. The lookup
* is executed dynamically using the discovering of transformers using the application's {@link MuleContext}
*/
public class DynamicDataTypeConversionResolver implements DataTypeConversionResolver {
private static final Logger logger = LoggerFactory.getLogger(DynamicDataTypeConversionResolver.class);
private final MuleContext muleContext;
@Inject
public DynamicDataTypeConversionResolver(MuleContext muleContext) {
this.muleContext = muleContext;
}
@Override
public Transformer resolve(DataType sourceType, List<DataType> targetDataTypes) {
Transformer transformer = null;
for (DataType targetDataType : targetDataTypes) {
try {
transformer = muleContext.getRegistry().lookupTransformer(sourceType, targetDataType);
if (transformer != null) {
break;
}
} catch (TransformerException e) {
if (logger.isDebugEnabled()) {
logger.debug("Unable to find an implicit conversion from " + sourceType + " to " + targetDataType);
}
}
}
return transformer;
}
}