Java tutorial
/******************************************************************************* * This file is part of OpenNMS(R). * * Copyright (C) 2012-2014 The OpenNMS Group, Inc. * OpenNMS(R) is Copyright (C) 1999-2014 The OpenNMS Group, Inc. * * OpenNMS(R) is a registered trademark of The OpenNMS Group, Inc. * * OpenNMS(R) is free software: you can redistribute it and/or modify * it under the terms of the GNU Affero General Public License as published * by the Free Software Foundation, either version 3 of the License, * or (at your option) any later version. * * OpenNMS(R) 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 Affero General Public License for more details. * * You should have received a copy of the GNU Affero General Public License * along with OpenNMS(R). If not, see: * http://www.gnu.org/licenses/ * * For more information contact: * OpenNMS(R) Licensing <license@opennms.org> * http://www.opennms.org/ * http://www.opennms.com/ *******************************************************************************/ package org.opennms.features.vaadin.datacollection; import java.util.Arrays; import java.util.List; import org.opennms.netmgt.config.datacollection.SystemDefChoice; import com.vaadin.data.validator.RegexpValidator; import com.vaadin.ui.Component; import com.vaadin.ui.CustomField; import com.vaadin.ui.HorizontalLayout; import com.vaadin.ui.OptionGroup; import com.vaadin.ui.TextField; /** * The System Definition Choice Field. * * @author <a href="mailto:agalue@opennms.org">Alejandro Galue</a> */ @SuppressWarnings("serial") public class SystemDefChoiceField extends CustomField<SystemDefChoice> { /** The Constant SINGLE. */ private static final String SINGLE = "Single"; /** The Constant MASK. */ private static final String MASK = "Mask"; /** The Constant OPTIONS. */ private static final List<String> OPTIONS = Arrays.asList(new String[] { SINGLE, MASK }); /** The OID type. */ private final OptionGroup oidType = new OptionGroup("OID Type", OPTIONS); /** The OID value. */ private final TextField oidValue = new TextField("OID Value"); /** * Instantiates a new system definition choice field. * * @param caption the caption */ public SystemDefChoiceField(String caption) { setCaption(caption); oidType.setNullSelectionAllowed(false); oidType.select("Single"); oidValue.setWidth("100%"); oidValue.setNullSettingAllowed(false); oidValue.setRequired(true); oidValue.setImmediate(true); oidValue.addValidator(new RegexpValidator("^\\.[.\\d]+$", "Invalid OID {0}")); } /* (non-Javadoc) * @see com.vaadin.ui.CustomField#initContent() */ @Override public Component initContent() { HorizontalLayout layout = new HorizontalLayout(); layout.setSpacing(true); layout.setWidth("100%"); layout.addComponent(oidType); layout.addComponent(oidValue); layout.setExpandRatio(oidValue, 1); return layout; } /* (non-Javadoc) * @see com.vaadin.ui.AbstractField#getType() */ @Override public Class<SystemDefChoice> getType() { return SystemDefChoice.class; } /* (non-Javadoc) * @see com.vaadin.ui.AbstractField#setInternalValue(java.lang.Object) */ @Override protected void setInternalValue(SystemDefChoice systemDef) { boolean oidTypeState = oidType.isReadOnly(); oidType.setReadOnly(false); oidType.select(systemDef.getSysoid() == null ? MASK : SINGLE); if (oidTypeState) { oidType.setReadOnly(true); } boolean oidValueState = oidValue.isReadOnly(); oidValue.setReadOnly(false); oidValue.setValue(systemDef.getSysoid() == null ? systemDef.getSysoidMask() : systemDef.getSysoid()); if (oidValueState) { oidValue.setReadOnly(true); } } /* (non-Javadoc) * @see com.vaadin.ui.AbstractField#getInternalValue() */ @Override protected SystemDefChoice getInternalValue() { SystemDefChoice systemDef = new SystemDefChoice(); String type = (String) oidType.getValue(); if (type.equals(SINGLE)) { systemDef.setSysoid((String) oidValue.getValue()); } else { systemDef.setSysoidMask((String) oidValue.getValue()); } return systemDef; } /* (non-Javadoc) * @see com.vaadin.ui.AbstractComponent#setReadOnly(boolean) */ @Override public void setReadOnly(boolean readOnly) { oidValue.setReadOnly(readOnly); oidType.setReadOnly(readOnly); super.setReadOnly(readOnly); } }