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.HashMap;
024
025import org.nuxeo.ecm.core.schema.types.PrimitiveType;
026import org.nuxeo.ecm.core.schema.types.Type;
027
028/**
029 * This constraint ensures some object's is supported by some {@link Type}.
030 *
031 * @since 7.1
032 */
033public class TypeConstraint extends AbstractConstraint {
034
035    private static final long serialVersionUID = 1L;
036
037    protected final PrimitiveType type;
038
039    public TypeConstraint(PrimitiveType type) {
040        this.type = type;
041    }
042
043    @Override
044    public boolean validate(Object object) {
045        if (object == null) {
046            return true;
047        }
048        return type.validate(object);
049    }
050
051    /**
052     * <p>
053     * Here, value is : <br>
054     * name = {@value #NAME} <br>
055     * parameters =
056     * <ul>
057     * <li>{@value #PNAME_TYPE} : org.nuxeo.ecm.core.schema.types.primitives.IntegerType</li>
058     * </ul>
059     * </p>
060     */
061    @Override
062    public Description getDescription() {
063        return new Description(type.getName(), new HashMap<String, Serializable>());
064    }
065
066    /**
067     * @return The type used by this constraint to validate.
068     * @since 7.1
069     */
070    public Type getType() {
071        return type;
072    }
073
074    @Override
075    public int hashCode() {
076        final int prime = 31;
077        int result = 1;
078        result = prime * result + ((type == null) ? 0 : type.hashCode());
079        return result;
080    }
081
082    @Override
083    public boolean equals(Object obj) {
084        if (this == obj) {
085            return true;
086        }
087        if (obj == null) {
088            return false;
089        }
090        if (getClass() != obj.getClass()) {
091            return false;
092        }
093        TypeConstraint other = (TypeConstraint) obj;
094        if (type == null) {
095            if (other.type != null) {
096                return false;
097            }
098        } else if (!type.equals(other.type)) {
099            return false;
100        }
101        return true;
102    }
103
104}