se.streamsource.streamflow.client.ui.administration.forms.definition.VisibilityRuleValuesModel.java Source code

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Here is the source code for se.streamsource.streamflow.client.ui.administration.forms.definition.VisibilityRuleValuesModel.java

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/**
 *
 * Copyright 2009-2014 Jayway Products AB
 *
 * 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 se.streamsource.streamflow.client.ui.administration.forms.definition;

import ca.odell.glazedlists.BasicEventList;
import ca.odell.glazedlists.EventList;
import org.apache.commons.collections.CollectionUtils;
import org.qi4j.api.injection.scope.Uses;
import org.qi4j.api.specification.Specification;
import org.restlet.data.Form;
import se.streamsource.dci.restlet.client.CommandQueryClient;
import se.streamsource.dci.value.link.LinkValue;
import se.streamsource.dci.value.link.LinksValue;
import se.streamsource.streamflow.api.administration.form.VisibilityRuleDefinitionValue;
import se.streamsource.streamflow.client.util.EventListSynch;
import se.streamsource.streamflow.client.util.Refreshable;

import java.util.ArrayList;
import java.util.List;

import static org.qi4j.api.util.Iterables.*;

/**
 *
 */
public class VisibilityRuleValuesModel implements Refreshable {
    @Uses
    CommandQueryClient client;

    private EventList<String> elements = new BasicEventList<String>();

    public EventList<String> getEventList() {
        return elements;
    }

    public void refresh() {

        VisibilityRuleDefinitionValue visibilityRuleDefinitionValue = client.query("rule",
                VisibilityRuleDefinitionValue.class);
        EventListSynch.synchronize(visibilityRuleDefinitionValue.values().get(), elements);

    }

    public void addElement(String name) {
        Form form = new Form();
        form.set("value", name);
        client.postCommand("addrulevalue", form.getWebRepresentation());
    }

    public void addElements(LinksValue selectedLinks) {
        for (LinkValue link : selectedLinks.links().get()) {
            Form form = new Form();
            form.set("value", link.text().get());
            client.postCommand("addrulevalue", form.getWebRepresentation());
        }
    }

    public void removeElement(int index) {
        Form form = new Form();
        form.set("index", Integer.toString(index));
        client.postCommand("removerulevalue", form.getWebRepresentation());
    }

    public void changeElementName(String newName, int index) {
        Form form = new Form();
        form.set("value", newName);
        form.set("index", Integer.toString(index));

        client.postCommand("changerulevaluename", form.getWebRepresentation());
    }

    /**
     * Fetches any possible rule values, especially if the target rule is a SelectionField.
     * The result is filtered by already set values. If the target rule is not a SelectionField
     * the EventList will be empty.
     * @return An EventList containing possible rule values.
     */
    public EventList<LinkValue> possiblePredefinedRuleValues() {
        EventList<LinkValue> possibleRuleValues = new BasicEventList<LinkValue>();
        LinksValue available = client.query("possiblerulevalues", LinksValue.class);

        List<LinkValue> linkValues = new ArrayList<LinkValue>();
        CollectionUtils.addAll(linkValues, filter(new Specification<LinkValue>() {
            public boolean satisfiedBy(LinkValue link) {
                return !elements.contains(link.text().get());
            }
        }, available.links().get()).iterator());

        EventListSynch.synchronize(linkValues, possibleRuleValues);

        return possibleRuleValues;
    }

}