Java tutorial
/** * Genji Scrum Tool and Issue Tracker * Copyright (C) 2015 Steinbeis GmbH & Co. KG Task Management Solutions * <a href="http://www.trackplus.com">Genji Scrum Tool</a> * * 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/>. */ /* $Id:$ */ package com.aurel.track.screen.action; import java.io.IOException; import java.io.PrintWriter; import org.apache.commons.lang3.exception.ExceptionUtils; import org.apache.logging.log4j.Logger; import org.apache.logging.log4j.LogManager; import org.apache.struts2.ServletActionContext; import com.aurel.track.beans.screen.IField; import com.aurel.track.beans.screen.IPanel; import com.aurel.track.json.JSONUtility; import com.aurel.track.screen.ScreenFactory; import com.aurel.track.screen.bl.design.AbstractFieldDesignBL; import com.aurel.track.screen.bl.design.AbstractPanelDesignBL; import com.opensymphony.xwork2.ActionSupport; import com.opensymphony.xwork2.Preparable; import com.opensymphony.xwork2.Validateable; import com.opensymphony.xwork2.ValidationAware; /** * Used to treat the operations from screen designer * operations on field:reload,getproperty setproperty * @author Adrian Bojani * */ public abstract class AbstractFieldAction extends ActionSupport implements Preparable, Validateable, ValidationAware { private Integer componentID; protected Integer screenID; private IField field; private String property; private String value; private Integer panelID; private String fieldType; public static final long serialVersionUID = 400L; private static final Logger LOGGER = LogManager.getLogger(AbstractFieldAction.class); protected abstract AbstractFieldDesignBL getAbstractFieldDesignBL(); protected abstract AbstractPanelDesignBL getAbstractPanelDesignBL(); public abstract ScreenFactory getScreenFactory(); @Override public void prepare() throws Exception { } /** * Validate property for panel */ @Override public void validate() { IField fieldDB = getAbstractFieldDesignBL().loadField(componentID); IPanel parent = getAbstractPanelDesignBL().loadPanel(fieldDB.getParent()); int rowIndex = fieldDB.getRowIndex().intValue(); int colIndex = fieldDB.getColIndex().intValue(); int maxColSpan = parent.getColsNo().intValue() - colIndex; int maxRowSpan = parent.getRowsNo().intValue() - rowIndex; if (field.getRowSpan() != null && field.getColSpan() != null) { int rows = field.getRowSpan().intValue(); int cols = field.getColSpan().intValue(); if (rows > maxRowSpan) { addFieldError("field.rowSpan", getText("screenEdit.error.screenField.rowSpanTooBig")); } if (cols > maxColSpan) { addFieldError("field.colSpan", getText("screenEdit.error.screenField.colSpanTooBig")); } } } /** * Obtain the properties for a field * -load the screen field * @return */ public String properties() { field = getAbstractFieldDesignBL().loadField(componentID); fieldType = getType(field); String s = getAbstractFieldDesignBL().encodeJSON_FieldProperies(field, fieldType); try { JSONUtility.prepareServletResponseJSON(ServletActionContext.getResponse()); PrintWriter out = ServletActionContext.getResponse().getWriter(); out.println(s); } catch (IOException e) { LOGGER.error(ExceptionUtils.getStackTrace(e)); } return null; } protected abstract String getType(IField field); /** * Update a field property * @return */ public String updateProperty() { clearCache(); IField fieldDB = getAbstractFieldDesignBL().loadField(componentID); panelID = fieldDB.getParent(); fieldType = getType(field); getAbstractFieldDesignBL().setFieldScreenProperty(fieldDB, field); getAbstractFieldDesignBL().saveScreenField(fieldDB); return properties(); } protected void clearCache() { } /** * @return the field */ public IField getField() { if (field == null) { field = getScreenFactory().createIFieldInstance(); } return field; } /** * @param field the field to set */ public void setField(IField field) { this.field = field; } /** * @return the property */ public String getProperty() { return property; } /** * @param property the property to set */ public void setProperty(String property) { this.property = property; } /** * @return the value */ public String getValue() { return value; } /** * @param value the value to set */ public void setValue(String value) { this.value = value; } /** * @return the panelID */ public Integer getPanelID() { return panelID; } /** * @param panelID the panelID to set */ public void setPanelID(Integer panelID) { this.panelID = panelID; } /** * @return the fieldType */ public String getFieldType() { return fieldType; } /** * @param fieldType the fieldType to set */ public void setFieldType(String fieldType) { this.fieldType = fieldType; } public Integer getComponentID() { return componentID; } public void setComponentID(Integer componentID) { this.componentID = componentID; } public Integer getScreenID() { return screenID; } public void setScreenID(Integer screenID) { this.screenID = screenID; } }