org.projectforge.framework.persistence.utils.ReflectionToString.java Source code

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Here is the source code for org.projectforge.framework.persistence.utils.ReflectionToString.java

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/////////////////////////////////////////////////////////////////////////////
//
// Project ProjectForge Community Edition
//         www.projectforge.org
//
// Copyright (C) 2001-2014 Kai Reinhard (k.reinhard@micromata.de)
//
// ProjectForge is dual-licensed.
//
// This community edition 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; version 3 of the License.
//
// This community edition 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.projectforge.framework.persistence.utils;

import java.io.Serializable;
import java.lang.reflect.Field;
import java.util.Collection;
import java.util.TimeZone;

import org.apache.commons.lang.builder.ReflectionToStringBuilder;
import org.apache.commons.lang.builder.ToStringBuilder;
import org.hibernate.Hibernate;
import org.projectforge.framework.persistence.api.BaseDO;
import org.projectforge.framework.persistence.api.HibernateUtils;
import org.projectforge.framework.persistence.api.ShortDisplayNameCapable;

/**
 * 
 * @author wolle (wolle@micromata.de)
 * 
 */
public class ReflectionToString extends ReflectionToStringBuilder {
    public ReflectionToString(final Object arg0) {
        super(Hibernate.isInitialized(arg0) ? arg0
                : "Lazy" + arg0.getClass() + "@" + System.identityHashCode(arg0));
    }

    @Override
    public ToStringBuilder append(final String fieldName, final Object object) {
        if (object != null) {
            if (Hibernate.isInitialized(object) == false) {
                if (BaseDO.class.isAssignableFrom(object.getClass()) == true) {
                    // Work around for Jassist bug:
                    final Serializable id = HibernateUtils.getIdentifier((BaseDO<?>) object);
                    return super.append(fieldName, id != null ? id : "<id>");
                }
                return super.append(fieldName, "LazyCollection");
            } else if (ShortDisplayNameCapable.class.isAssignableFrom(object.getClass()) == true) {
                return super.append(fieldName, myToString(object));
            } else if (BaseDO.class.isAssignableFrom(object.getClass()) == true) {
                return super.append(fieldName, myToString(object));
            } else if (object instanceof Collection) {
                final StringBuilder sb = new StringBuilder().append("[");
                boolean first = true;
                for (final Object el : (Collection<?>) object) {
                    if (first == true)
                        first = false;
                    else
                        sb.append(", ");
                    sb.append(myToString(el));
                }
                return super.append(fieldName, sb.append("]").toString());
            } else if (object instanceof TimeZone) {
                return super.append(fieldName, ((TimeZone) object).getID());
            }
        }
        return super.append(fieldName, object);
    }

    private String myToString(final Object obj) {
        if (obj == null) {
            return "<null>";
        } else if (ShortDisplayNameCapable.class.isAssignableFrom(obj.getClass()) == true) {
            if (BaseDO.class.isAssignableFrom(obj.getClass()) == true) {
                final Serializable id = HibernateUtils.getIdentifier((BaseDO<?>) obj);
                return id + ":" + ((ShortDisplayNameCapable) obj).getShortDisplayName();
            }
            return ((ShortDisplayNameCapable) obj).getShortDisplayName();
        } else if (BaseDO.class.isAssignableFrom(obj.getClass()) == true) {
            final Serializable id = HibernateUtils.getIdentifier((BaseDO<?>) obj);
            return id != null ? id.toString() : "<id>";
        }
        return obj.toString();
    }

    @Override
    protected boolean accept(final Field field) {
        try {
            final Object value = getValue(field);
            if (Hibernate.isInitialized(value) == false) {
                append(field.getName(), value);
                return false;
            }
        } catch (final IllegalArgumentException ex) {
            return false;
        } catch (final IllegalAccessException ex) {
            return false;
        }
        return super.accept(field);
    }

    public static String asString(final Object o) {
        return new ReflectionToString(o).toString();
    }
}