org.apache.jackrabbit.spi.commons.nodetype.constraint.ReferenceConstraint Maven / Gradle / Ivy
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* 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.jackrabbit.spi.commons.nodetype.constraint;
import javax.jcr.NamespaceException;
import javax.jcr.PropertyType;
import javax.jcr.RepositoryException;
import javax.jcr.nodetype.ConstraintViolationException;
import org.apache.jackrabbit.spi.Name;
import org.apache.jackrabbit.spi.QValue;
import org.apache.jackrabbit.spi.commons.conversion.NameException;
import org.apache.jackrabbit.spi.commons.conversion.NamePathResolver;
import org.apache.jackrabbit.spi.commons.conversion.NameResolver;
import org.apache.jackrabbit.spi.commons.nodetype.InvalidConstraintException;
/**
* ReferenceConstraint
...
*/
class ReferenceConstraint extends ValueConstraint {
private final Name ntName;
static ReferenceConstraint create(String nameString) {
// constraint format: String representation of Name object.
return new ReferenceConstraint(nameString, NAME_FACTORY.create(nameString));
}
static ReferenceConstraint create(String jcrName, NameResolver resolver)
throws InvalidConstraintException {
// constraint format: JCR name in prefix form
try {
Name name = resolver.getQName(jcrName);
return new ReferenceConstraint(name.toString(), name);
} catch (NameException e) {
String msg = "Invalid name constraint: " + jcrName;
log.debug(msg);
throw new InvalidConstraintException(msg, e);
} catch (NamespaceException e) {
String msg = "Invalid name constraint: " + jcrName;
log.debug(msg);
throw new InvalidConstraintException(msg, e);
}
}
private ReferenceConstraint(String nameString, Name ntName) {
super(nameString);
this.ntName = ntName;
}
/**
* Uses {@link NamePathResolver#getJCRName(Name)} to convert the node type
* Name
present with this constraint into a JCR name String.
*
* @see ValueConstraint#getDefinition(NamePathResolver)
* @param resolver name-path resolver
*/
@Override
public String getDefinition(NamePathResolver resolver) {
try {
return resolver.getJCRName(ntName);
} catch (NamespaceException e) {
// should never get here, return raw definition as fallback
return getString();
}
}
/**
* @see org.apache.jackrabbit.spi.QValueConstraint#check(QValue)
*/
public void check(QValue value) throws ConstraintViolationException, RepositoryException {
if (value == null) {
throw new ConstraintViolationException("Null value does not satisfy the constraint '" + getString() + "'");
}
switch (value.getType()) {
case PropertyType.REFERENCE:
case PropertyType.WEAKREFERENCE:
// TODO check value constraint (requires a session)
log.warn("validation of reference constraint is not yet implemented");
return;
default:
String msg = "Reference constraint can not be applied to value of type: "
+ PropertyType.nameFromValue(value.getType());
log.debug(msg);
throw new RepositoryException(msg);
}
}
}