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eFaps is a framework used to map objects with or without attached files to a relational database and optional file systems (only for attaches files). Configurable access control can be provided down to object and attribute level depending on implementation and use case. Depending on requirements, events (like triggers) allow to implement business logic and to separate business logic from user interface. The framework includes integrations (e.g. webdav, full text search) and a web application as 'simple' configurable user interface. Some best practises, example web application modules (e.g. team work module) support administrators and implementers using this framework.

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/*
 * Copyright 2003 - 2011 The eFaps Team
 *
 * Licensed 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.
 *
 * Revision:        $Rev: 6210 $
 * Last Changed:    $Date: 2011-02-18 16:02:56 -0500 (Fri, 18 Feb 2011) $
 * Last Changed By: $Author: [email protected] $
 */

package org.efaps.admin.ui.field;

import java.util.List;

import org.efaps.admin.datamodel.Classification;
import org.efaps.admin.datamodel.Type;
import org.efaps.admin.event.EventDefinition;
import org.efaps.admin.event.EventType;
import org.efaps.admin.event.Parameter;
import org.efaps.admin.event.Parameter.ParameterValues;
import org.efaps.admin.event.Return;
import org.efaps.admin.event.Return.ReturnValues;
import org.efaps.db.Context;
import org.efaps.db.Instance;
import org.efaps.jaas.AppAccessHandler;
import org.efaps.util.EFapsException;
import org.efaps.util.cache.CacheReloadException;

/**
 * TODO comment!
 *
 * @author The eFaps Team
 * @version $Id: FieldClassification.java 6210 2011-02-18 21:02:56Z [email protected] $
 */
public class FieldClassification
    extends Field
{

    /**
     * Stores the classification for this field.
     */
    private String classificationName;

    /**
     * This is the constructor of the field class.
     *
     * @param _id       id of the field instance
     * @param _uuid     UUID of the field instance
     * @param _name     name of the field instance
     */
    public FieldClassification(final long _id,
                               final String _uuid,
                               final String _name)
    {
        super(_id, _uuid, _name);
    }

    /**
     * Getter method for instance variable {@link #classificationName}.
     *
     * @return value of instance variable {@link #classificationName}
     */
    public String getClassificationName()
    {
        return this.classificationName;
    }

    /**
     * {@inheritDoc}
     */
    @Override
    public boolean hasAccess(final TargetMode _targetMode,
                             final Instance _instance)
        throws EFapsException
    {
        boolean ret = false;
        if (Type.get(this.classificationName) != null
                        && ((Classification) Type.get(this.classificationName))
                            .isAssigendTo(Context.getThreadContext().getCompany())
                        && !AppAccessHandler.excludeMode()) {
            ret = true;
        }
        if ((ret || AppAccessHandler.excludeMode()) && super.hasEvents(EventType.UI_ACCESSCHECK)) {
            ret = false;
            final List events = super.getEvents(EventType.UI_ACCESSCHECK);

            final Parameter parameter = new Parameter();
            parameter.put(ParameterValues.UIOBJECT, this);
            parameter.put(ParameterValues.ACCESSMODE, _targetMode);
            parameter.put(ParameterValues.INSTANCE, _instance);
            for (final EventDefinition event : events) {
                final Return retIn = event.execute(parameter);
                ret = retIn.get(ReturnValues.TRUE) != null;
            }
        }
        return ret;
    }

    /**
     * @see org.efaps.admin.ui.field.Field#setProperty(java.lang.String, java.lang.String)
     * @param _name     name of the property
     * @param _value    value for the property
     * @throws CacheReloadException on error
     */
    @Override
    protected void setProperty(final String _name,
                               final String _value)
        throws CacheReloadException
    {
        if ("Classification".equals(_name)) {
            this.classificationName = _value;
        } else {
            super.setProperty(_name, _value);
        }
    }
}