org.drugis.addis.entities.StudyOutcomeMeasure.java Source code

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Here is the source code for org.drugis.addis.entities.StudyOutcomeMeasure.java

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/*
 * This file is part of ADDIS (Aggregate Data Drug Information System).
 * ADDIS is distributed from http://drugis.org/.
 * Copyright  2009 Gert van Valkenhoef, Tommi Tervonen.
 * Copyright  2010 Gert van Valkenhoef, Tommi Tervonen, Tijs Zwinkels,
 * Maarten Jacobs, Hanno Koeslag, Florin Schimbinschi, Ahmad Kamal, Daniel
 * Reid.
 * Copyright  2011 Gert van Valkenhoef, Ahmad Kamal, Daniel Reid, Florin
 * Schimbinschi.
 * Copyright  2012 Gert van Valkenhoef, Daniel Reid, Jol Kuiper, Wouter
 * Reckman.
 * Copyright  2013 Gert van Valkenhoef, Jol Kuiper.
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

package org.drugis.addis.entities;

import javax.swing.event.ListDataEvent;
import javax.swing.event.ListDataListener;

import org.apache.commons.collections15.Predicate;
import org.apache.commons.lang.builder.HashCodeBuilder;
import org.drugis.addis.presentation.ModifiableHolder;
import org.drugis.addis.presentation.ValueHolder;
import org.drugis.common.EqualsUtil;
import org.drugis.common.beans.GuardedObservableList;

import com.jgoodies.binding.list.ArrayListModel;
import com.jgoodies.binding.list.ObservableList;

@SuppressWarnings("serial")
public class StudyOutcomeMeasure<T extends Variable> extends ObjectWithNotes<T> {
    public class EmptyVariable extends AbstractVariable {
        private T d_dummy;

        @SuppressWarnings("unchecked")
        protected EmptyVariable(String name, VariableType type) {
            super(name, type);
            try {
                d_dummy = (T) d_class.newInstance();
            } catch (Exception e) {
                throw new IllegalStateException(
                        "Cannot create dummy variable for StudyOutcomeMeasure, unrecognized type " + d_class);
            }
        }

        T getDummy() {
            return d_dummy;
        }
    }

    public static final String PROPERTY_IS_PRIMARY = "isPrimary";
    public static final String PROPERTY_HAS_PLACEHOLDER = "hasPlaceholder";

    protected static final String PROPERTY_WHEN_TAKEN_CHANGED = "whenTakenChanged";
    private ValueHolder<EmptyVariable> d_placeholder = new ModifiableHolder<EmptyVariable>(null);

    private Boolean d_isPrimary = false;
    private ObservableList<WhenTaken> d_whenTaken = new GuardedObservableList<WhenTaken>(
            new ArrayListModel<WhenTaken>(), new Predicate<WhenTaken>() {
                public boolean evaluate(WhenTaken wt) {
                    return wt != null && wt.isCommitted();
                }
            });

    private final Class<? extends Variable> d_class;

    public StudyOutcomeMeasure(Class<T> cls) {
        this((T) null, cls);
    }

    public StudyOutcomeMeasure(T obj) {
        this(obj, obj.getClass());
    }

    private StudyOutcomeMeasure(T obj, Class<? extends Variable> cls) {
        super(obj);
        d_class = cls;
        d_whenTaken.addListDataListener(new ListDataListener() {
            public void intervalRemoved(ListDataEvent e) {
                firePropertyChange(PROPERTY_WHEN_TAKEN_CHANGED, false, true);
            }

            public void intervalAdded(ListDataEvent e) {
                firePropertyChange(PROPERTY_WHEN_TAKEN_CHANGED, false, true);
            }

            public void contentsChanged(ListDataEvent e) {
                firePropertyChange(PROPERTY_WHEN_TAKEN_CHANGED, false, true);
            }
        });
    }

    public StudyOutcomeMeasure(T obj, WhenTaken whenTaken) {
        this(obj);
        if (whenTaken != null) {
            d_whenTaken.add(whenTaken);
        }
    }

    @Override
    public T getValue() {
        if (super.getValue() == null) {
            return initializePlaceholder();
        }
        return super.getValue();
    }

    @Override
    public void setValue(Object newValue) {
        super.setValue(newValue);

        d_placeholder.setValue(null);
        firePropertyChange(PROPERTY_HAS_PLACEHOLDER, true, false);
    }

    private T initializePlaceholder() {
        if (d_placeholder.getValue() == null) {
            d_placeholder.setValue(new EmptyVariable("", null));
            firePropertyChange(PROPERTY_HAS_PLACEHOLDER, false, true);
        }
        return d_placeholder.getValue().getDummy();
    }

    public boolean hasPlaceholder() {
        return d_placeholder.getValue() != null;
    }

    public T getPlaceholder() {
        return d_placeholder.getValue().getDummy();
    }

    @Override
    public StudyOutcomeMeasure<T> clone() {
        StudyOutcomeMeasure<T> clone = new StudyOutcomeMeasure<T>(getValue());
        clone.setIsPrimary(getIsPrimary());
        clone.getNotes().addAll(getNotes());
        for (WhenTaken wt : getWhenTaken()) {
            WhenTaken wtClone = wt.clone();
            wtClone.commit();
            clone.getWhenTaken().add(wtClone);
        }
        return clone;
    }

    public Boolean getIsPrimary() {
        return d_isPrimary;
    }

    public void setIsPrimary(Boolean isPrimary) {
        Boolean oldValue = new Boolean(d_isPrimary);
        d_isPrimary = isPrimary;
        firePropertyChange(PROPERTY_IS_PRIMARY, oldValue, d_isPrimary);
    }

    public ObservableList<WhenTaken> getWhenTaken() {
        return d_whenTaken;
    }

    @Override
    public boolean equals(Object o) {
        if (o instanceof StudyOutcomeMeasure<?>) {
            StudyOutcomeMeasure<?> other = (StudyOutcomeMeasure<?>) o;
            return EqualsUtil.equal(getValue(), other.getValue());
        }
        return false;
    }

    @Override
    public int hashCode() {
        return new HashCodeBuilder(17, 37).append(d_class).append(d_isPrimary).append(d_whenTaken).toHashCode();
    }

    @Override
    public String toString() {
        return (d_isPrimary ? "primary measure: " : "secondary measure: ")
                + (getValue() != null ? getValue().getName() : "???") + " " + d_whenTaken + " " + getNotes();
    }

    public Class<? extends Variable> getValueClass() {
        return d_class;
    }
}