public void process(Exchange exchange) throws Exception {
MongoDbOperation operation = endpoint.getOperation();
Object header = exchange.getIn().getHeader(MongoDbConstants.OPERATION_HEADER);
if (header != null) {
LOG.debug("Overriding default operation with operation specified on header: {}", header);
try {
if (header instanceof MongoDbOperation) {
operation = ObjectHelper.cast(MongoDbOperation.class, header);
} else {
// evaluate as a String
operation =
MongoDbOperation.valueOf(
exchange.getIn().getHeader(MongoDbConstants.OPERATION_HEADER, String.class));
}
} catch (Exception e) {
throw new CamelMongoDbException(
"Operation specified on header is not supported. Value: " + header, e);
}
}
try {
invokeOperation(operation, exchange);
} catch (Exception e) {
throw MongoDbComponent.wrapInCamelMongoDbException(e);
}
}
/**
* Sets the operation this endpoint will execute against MongoDB. For possible values, see {@link
* MongoDbOperation}.
*
* @param operation name of the operation as per catalogued values
* @throws CamelMongoDbException
*/
public void setOperation(String operation) throws CamelMongoDbException {
try {
this.operation = MongoDbOperation.valueOf(operation);
} catch (IllegalArgumentException e) {
throw new CamelMongoDbException("Operation not supported", e);
}
}