ontopoly.validators.IdentityValidator.java Source code

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Here is the source code for ontopoly.validators.IdentityValidator.java

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/*
 * #!
 * Ontopoly Editor
 * #-
 * Copyright (C) 2001 - 2013 The Ontopia Project
 * #-
 * 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.
 * !#
 */
package ontopoly.validators;

import java.io.Serializable;

import net.ontopia.infoset.core.LocatorIF;
import net.ontopia.infoset.impl.basic.URILocator;
import net.ontopia.topicmaps.core.TopicIF;
import net.ontopia.topicmaps.core.TopicMapIF;
import net.ontopia.utils.ObjectUtils;
import ontopoly.components.AbstractFieldInstancePanel;
import ontopoly.model.Topic;
import ontopoly.model.TopicMap;
import ontopoly.models.FieldInstanceModel;

import org.apache.wicket.Application;
import org.apache.wicket.Component;
import org.apache.wicket.model.Model;
import org.apache.wicket.validation.IValidatable;
import org.apache.wicket.validation.validator.AbstractValidator;

public class IdentityValidator extends AbstractValidator<String> {

    protected FieldInstanceModel fieldInstanceModel;
    private final Component component;

    public IdentityValidator(Component component, FieldInstanceModel fieldInstanceModel) {
        this.component = component;
        this.fieldInstanceModel = fieldInstanceModel;
    }

    @Override
    protected void onValidate(IValidatable<String> validatable) {
        String value = validatable.getValue();
        if (value == null)
            return;
        LocatorIF locator;
        try {
            locator = new URILocator(value);
        } catch (Exception e) {
            reportError("validators.IdentityValidator.invalidURI", value);
            return;
        }

        Topic topic = fieldInstanceModel.getFieldInstance().getInstance();
        TopicMap topicMap = topic.getTopicMap();
        TopicMapIF topicMapIf = topicMap.getTopicMapIF();
        TopicIF topicIf = topic.getTopicIF();

        TopicIF otopic = topicMapIf.getTopicBySubjectIdentifier(locator);
        if (otopic != null && ObjectUtils.different(topicIf, otopic))
            reportError("validators.IdentityValidator.subjectIdentifierClash", value);

        otopic = topicMapIf.getTopicBySubjectLocator(locator);
        if (otopic != null && ObjectUtils.different(topicIf, otopic))
            reportError("validators.IdentityValidator.subjectLocatorClash", value);
    }

    private void reportError(String resourceKey, final String identity) {
        String message = Application.get().getResourceSettings().getLocalizer().getString(resourceKey,
                (Component) null, new Model<Serializable>(new Serializable() {
                    @SuppressWarnings("unused")
                    public String getIdentity() {
                        return identity;
                    }
                }));
        component.error(
                AbstractFieldInstancePanel.createErrorMessage(fieldInstanceModel, new Model<String>(message)));
    }

}