001/* 002 * (C) Copyright 2014 Nuxeo SA (http://nuxeo.com/) and others. 003 * 004 * Licensed under the Apache License, Version 2.0 (the "License"); 005 * you may not use this file except in compliance with the License. 006 * You may obtain a copy of the License at 007 * 008 * http://www.apache.org/licenses/LICENSE-2.0 009 * 010 * Unless required by applicable law or agreed to in writing, software 011 * distributed under the License is distributed on an "AS IS" BASIS, 012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 013 * See the License for the specific language governing permissions and 014 * limitations under the License. 015 * 016 * Contributors: 017 * Nicolas Chapurlat <nchapurlat@nuxeo.com> 018 */ 019 020package org.nuxeo.ecm.core.schema.types.constraints; 021 022import java.io.Serializable; 023import java.util.Collections; 024import java.util.Locale; 025import java.util.Map; 026 027import org.nuxeo.ecm.core.schema.types.resolver.ObjectResolver; 028 029/** 030 * External references are document field with a simple type whose value refers to an external business entity. This 031 * constraints ensure some value is a reference of an existing external entity resolved by the underlying resolver : 032 * {@link #getResolver()} . 033 * 034 * @since 7.1 035 */ 036public final class ObjectResolverConstraint extends AbstractConstraint { 037 038 private static final long serialVersionUID = 1L; 039 040 private ObjectResolver resolver; 041 042 public ObjectResolverConstraint(ObjectResolver resolver) { 043 super(); 044 this.resolver = resolver; 045 } 046 047 public ObjectResolver getResolver() { 048 return resolver; 049 } 050 051 @Override 052 public boolean validate(Object object) { 053 if (object == null) { 054 return true; 055 } 056 return resolver.validate(object); 057 } 058 059 @Override 060 public Description getDescription() { 061 Map<String, Serializable> parameters = Collections.unmodifiableMap(resolver.getParameters()); 062 return new Description(resolver.getName(), parameters); 063 } 064 065 @Override 066 public String getErrorMessage(Object invalidValue, Locale locale) { 067 return resolver.getConstraintErrorMessage(invalidValue, locale); 068 } 069}