/**
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You 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.apache.camel.model.validator;
import javax.xml.bind.annotation.XmlAccessType;
import javax.xml.bind.annotation.XmlAccessorType;
import javax.xml.bind.annotation.XmlElementRef;
import javax.xml.bind.annotation.XmlType;
import org.apache.camel.CamelContext;
import org.apache.camel.Expression;
import org.apache.camel.Predicate;
import org.apache.camel.impl.validator.ProcessorValidator;
import org.apache.camel.model.ExpressionNodeHelper;
import org.apache.camel.model.language.ExpressionDefinition;
import org.apache.camel.processor.validation.PredicateValidatingProcessor;
import org.apache.camel.spi.Metadata;
import org.apache.camel.spi.Validator;
/**
* Represents a predicate {@link Validator} which leverages expression or predicates to
* perform content validation. A {@link ProcessorValidator} will be created internally
* with a {@link PredicateValidatingProcessor} which validates the message according to specified expression/predicates.
*
* {@see ValidatorDefinition}
* {@see Validator}
*/
@Metadata(label = "validation")
@XmlType(name = "predicateValidator")
@XmlAccessorType(XmlAccessType.FIELD)
public class PredicateValidatorDefinition extends ValidatorDefinition {
@XmlElementRef
private ExpressionDefinition expression;
@Override
protected Validator doCreateValidator(CamelContext context) throws Exception {
Predicate pred = getExpression().createPredicate(context);
PredicateValidatingProcessor processor = new PredicateValidatingProcessor(pred);
return new ProcessorValidator(context)
.setProcessor(processor)
.setType(getType());
}
public ExpressionDefinition getExpression() {
return expression;
}
public void setExpression(ExpressionDefinition expression) {
// favour using the helper to set the expression as it can unwrap some unwanted builders when using Java DSL
if (expression instanceof Expression) {
this.expression = ExpressionNodeHelper.toExpressionDefinition((Expression) expression);
} else if (expression instanceof Predicate) {
this.expression = ExpressionNodeHelper.toExpressionDefinition((Predicate) expression);
} else {
this.expression = expression;
}
}
}