Java tutorial
/* * Copyright 2003 - 2016 The eFaps Team * * 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 org.efaps.esjp.admin.common.systemconfiguration; import org.apache.commons.lang3.EnumUtils; import org.efaps.admin.common.SystemConfiguration; import org.efaps.admin.event.Parameter; import org.efaps.admin.program.esjp.EFapsApplication; import org.efaps.admin.program.esjp.EFapsUUID; import org.efaps.util.EFapsException; /** * The Class EnumSysConfAttribute_Base. * * @author The eFaps Team * @param <E> the element type */ @EFapsUUID("12fbca5f-94c4-4fa7-92dc-f82a5a8c330a") @EFapsApplication("eFaps-Kernel") public abstract class EnumSysConfAttribute_Base<E extends Enum<E>> extends AbstractSysConfAttribute<EnumSysConfAttribute<E>, E> { /** The enum clazz. */ private Class<E> clazz; /** * Set the enum Clazz. * * @param _clazz the _clazz * @return this EnumSysConfAttribute */ public EnumSysConfAttribute<E> clazz(final Class<E> _clazz) { this.clazz = _clazz; return getThis(); } @Override protected EnumSysConfAttribute<E> getThis() { return (EnumSysConfAttribute<E>) this; } @Override public E get() throws EFapsException { final E ret; if (SystemConfiguration.get(getSysConfUUID()).containsAttributeValue(getKey())) { final String val = SystemConfiguration.get(getSysConfUUID()).getAttributeValue(getKey()); ret = EnumUtils.getEnum(this.clazz, val); } else { ret = getDefaultValue(); } return ret; } @Override public CharSequence getHtml(final Parameter _parameter, final Object _value, final String _fieldName) { E val = null; if (_value != null) { val = EnumUtils.getEnum(this.clazz, (String) _value); } final StringBuilder ret = new StringBuilder(); for (final E e : EnumUtils.getEnumList(this.clazz)) { ret.append("<label tag=\"rem\"><input type=\"radio\" name=\"").append(_fieldName).append("\" value=\"") .append(e).append("\""); if (e.equals(val)) { ret.append(" checked=\"checked\" "); } ret.append(" >").append(e).append("</label><br/>"); } return ret; } }