org.apache.openaz.xacml.admin.view.fields.ConstraintField.java Source code

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Here is the source code for org.apache.openaz.xacml.admin.view.fields.ConstraintField.java

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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.openaz.xacml.admin.view.fields;

import java.util.Collection;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;

import org.apache.openaz.xacml.admin.jpa.Attribute;
import org.apache.openaz.xacml.admin.jpa.ConstraintType;
import org.apache.openaz.xacml.admin.view.components.EnumerationEditorComponent;
import org.apache.openaz.xacml.admin.view.components.RangeEditorComponent;
import org.apache.openaz.xacml.admin.view.components.RegexpEditorComponent;
import org.apache.openaz.xacml.api.Identifier;
import com.vaadin.addon.jpacontainer.EntityItem;
import com.vaadin.ui.Component;
import com.vaadin.ui.CustomField;
import com.vaadin.ui.VerticalLayout;

public class ConstraintField extends CustomField<Object> {
    private static final long serialVersionUID = 1L;
    private static final Log logger = LogFactory.getLog(ConstraintField.class);

    private VerticalLayout mainLayout = new VerticalLayout();
    private EntityItem<Attribute> attributeEntity;

    /**
     * The constructor should first build the main layout, set the
     * composition root and then do any custom initialization.
     *
     * The constructor will not be automatically regenerated by the
     * visual editor.
     */
    public ConstraintField(EntityItem<Attribute> entityItem) {
        //
        // Save our Attribute that we are editing
        //
        this.attributeEntity = entityItem;
    }

    public void resetDatatype(Identifier id) {
        if (logger.isDebugEnabled()) {
            logger.debug("resetDatatype " + id);
        }
        if (this.mainLayout.getComponentCount() == 0) {
            return;
        }
        Component component = this.mainLayout.getComponent(0);
        if (component != null && component instanceof RangeEditorComponent) {
            ((RangeEditorComponent) component).setupDatatype(id);
        }
        if (component != null && component instanceof EnumerationEditorComponent) {
            ((EnumerationEditorComponent) component).setupDatatype(id);
        }
    }

    public Component resetContent(ConstraintType type, Identifier datatype) {
        //
        // Remove all existing components
        //
        this.mainLayout.removeAllComponents();
        //
        // What are we constrained to?
        //
        if (type == null || type.getConstraintType() == null) {
            //
            // No constraint defined
            //
            this.attributeEntity.getEntity().removeAllConstraintValues();
            return mainLayout;
        }
        if (type.getConstraintType().equals("Enumeration")) {
            mainLayout.addComponent(new EnumerationEditorComponent(this.attributeEntity.getEntity(), datatype));
        } else if (type.getConstraintType().equals("Range")) {
            mainLayout.addComponent(new RangeEditorComponent(this.attributeEntity.getEntity(), datatype));
        } else if (type.getConstraintType().equals("Regular Expression")) {
            mainLayout.addComponent(new RegexpEditorComponent(this.attributeEntity.getEntity()));
        }
        return mainLayout;
    }

    @Override
    protected Component initContent() {
        return this.resetContent(this.attributeEntity.getEntity().getConstraintType(),
                this.attributeEntity.getEntity().getDatatypeBean().getIdentifer());
    }

    @Override
    public Class<?> getType() {
        return Collection.class;
    }

}