/**
 * Licensed to Apereo under one or more contributor license agreements. See the NOTICE file
 * distributed with this work for additional information regarding copyright ownership. Apereo
 * 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 the
 * following location:
 *
 * <p>http://www.apache.org/licenses/LICENSE-2.0
 *
 * <p>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.apereo.portal.io.xml;

import java.util.Collections;
import java.util.Set;
import javax.xml.namespace.QName;
import javax.xml.stream.XMLEventReader;
import org.apache.commons.lang.Validate;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

/**
 * Base IPortalDataType implementation that should simplify most implementations
 *
 */
public abstract class AbstractPortalDataType implements IPortalDataType {
    protected final Logger logger = LoggerFactory.getLogger(getClass());

    private final QName defaultQName;

    public AbstractPortalDataType(QName defaultQName) {
        Validate.notNull(defaultQName);
        this.defaultQName = defaultQName;
    }

    /* (non-Javadoc)
     * @see org.apereo.portal.io.xml.IPortalDataType#getTypeId()
     */
    @Override
    public String getTypeId() {
        return this.defaultQName.getLocalPart();
    }

    /* (non-Javadoc)
     * @see org.apereo.portal.io.xml.IPortalDataType#getTitle()
     */
    @Override
    public String getTitleCode() {
        return this.defaultQName.getLocalPart();
    }

    /* (non-Javadoc)
     * @see org.apereo.portal.io.xml.IPortalDataType#getDescription()
     */
    @Override
    public String getDescriptionCode() {
        return null;
    }

    /* (non-Javadoc)
     * @see org.apereo.portal.io.xml.IPortalDataType#postProcessPortalDataKey(org.springframework.core.io.Resource, org.apereo.portal.io.xml.PortalDataKey, javax.xml.stream.XMLEventReader)
     */
    @Override
    public Set<PortalDataKey> postProcessPortalDataKey(
            String systemId, PortalDataKey portalDataKey, XMLEventReader reader) {
        final PortalDataKey singlePortalDataKey =
                this.postProcessSinglePortalDataKey(systemId, portalDataKey, reader);
        return Collections.singleton(singlePortalDataKey);
    }

    protected PortalDataKey postProcessSinglePortalDataKey(
            String systemId, PortalDataKey portalDataKey, XMLEventReader reader) {
        return portalDataKey;
    }

    @Override
    public int hashCode() {
        final int prime = 31;
        int result = 1;
        result = prime * result + ((this.getTypeId() == null) ? 0 : this.getTypeId().hashCode());
        result =
                prime * result
                        + ((this.getDataKeyImportOrder() == null)
                                ? 0
                                : this.getDataKeyImportOrder().hashCode());
        return result;
    }

    @Override
    public boolean equals(Object obj) {
        if (this == obj) return true;
        if (obj == null) return false;
        if (getClass() != obj.getClass()) return false;
        IPortalDataType other = (IPortalDataType) obj;
        if (this.getTypeId() == null) {
            if (other.getTypeId() != null) return false;
        } else if (!this.getTypeId().equals(other.getTypeId())) return false;
        if (this.getDataKeyImportOrder() == null) {
            if (other.getDataKeyImportOrder() != null) return false;
        } else if (!this.getDataKeyImportOrder().equals(other.getDataKeyImportOrder()))
            return false;
        return true;
    }

    @Override
    public String toString() {
        return this.getClass().getSimpleName()
                + " [QName="
                + this.defaultQName
                + ", supportedDataKeys="
                + this.getDataKeyImportOrder()
                + "]";
    }
}