| /******************************************************************************* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you 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.ofbiz.pos.config; |
| |
| import java.lang.reflect.Method; |
| import java.lang.reflect.InvocationTargetException; |
| import java.util.Iterator; |
| import java.util.List; |
| import java.util.ArrayList; |
| import java.awt.AWTEvent; |
| |
| import net.xoetrope.swing.XButton; |
| |
| import org.ofbiz.base.config.GenericConfigException; |
| import org.ofbiz.base.config.ResourceLoader; |
| import org.ofbiz.base.util.GeneralException; |
| import org.ofbiz.base.util.UtilValidate; |
| import org.ofbiz.base.util.UtilXml; |
| import org.ofbiz.base.util.Debug; |
| import org.ofbiz.base.util.cache.OFBizCache; |
| import org.ofbiz.base.util.cache.UtilCache; |
| import org.ofbiz.pos.screen.PosScreen; |
| |
| import org.w3c.dom.Element; |
| |
| @SuppressWarnings("serial") |
| public class ButtonEventConfig implements java.io.Serializable { |
| |
| public static final String module = ButtonEventConfig.class.getName(); |
| public static final String BUTTON_EVENT_CONFIG = "buttonevents.xml"; |
| private static transient OFBizCache<String, ButtonEventConfig> buttonConfig = UtilCache.createUtilCache("pos.ButtonEvent", 0, 0, 0, false, true); |
| |
| protected String buttonName = null; |
| protected String className = null; |
| protected String method = null; |
| protected int keyCode = -1; |
| protected boolean disableLock = false; |
| |
| public static void loadButtonConfig() throws GenericConfigException { |
| Element root = ResourceLoader.getXmlRootElement(ButtonEventConfig.BUTTON_EVENT_CONFIG); |
| List<?> buttonEvents = UtilXml.childElementList(root, "event"); |
| if (!UtilValidate.isEmpty(buttonEvents)) { |
| Iterator<?> i = buttonEvents.iterator(); |
| while (i.hasNext()) { |
| Element e = (Element) i.next(); |
| ButtonEventConfig bef = new ButtonEventConfig(e); |
| buttonConfig.put(bef.getName(), bef); |
| } |
| } |
| } |
| |
| public static boolean isLockable(String buttonName) { |
| ButtonEventConfig bef = buttonConfig.get(buttonName); |
| if (bef == null) { |
| return true; |
| } |
| return bef.isLockable(); |
| } |
| |
| public static void invokeButtonEvents(List<?> buttonNames, PosScreen pos) throws ButtonEventNotFound, ButtonEventException { |
| if (buttonNames != null) { |
| Iterator<?> i = buttonNames.iterator(); |
| while (i.hasNext()) { |
| invokeButtonEvent(((String) i.next()), pos, null); |
| } |
| } |
| } |
| |
| public static void invokeButtonEvent(String buttonName, PosScreen pos, AWTEvent event) throws ButtonEventNotFound, ButtonEventException { |
| // load / re-load the button configs |
| if (buttonConfig.size() == 0) { |
| synchronized(ButtonEventConfig.class) { |
| try { |
| loadButtonConfig(); |
| } catch (GenericConfigException e) { |
| Debug.logError(e, module); |
| } |
| } |
| } |
| |
| // check for sku mapping buttons |
| if (buttonName.startsWith("SKU.")) { |
| buttonName = "menuSku"; |
| } |
| |
| // invoke the button event |
| ButtonEventConfig bef = buttonConfig.get(buttonName); |
| if (bef == null) { |
| throw new ButtonEventNotFound("No button definition found for button - " + buttonName); |
| } |
| bef.invoke(pos, event); |
| } |
| |
| public static List<String> findButtonKeyAssign(int keyCode) { |
| List<String> buttonAssignments = new ArrayList<String>(); |
| Iterator<ButtonEventConfig> i = buttonConfig.values().iterator(); |
| while (i.hasNext()) { |
| ButtonEventConfig bef = i.next(); |
| if (bef.getKeyCode() == keyCode) { |
| buttonAssignments.add(bef.getName()); |
| } |
| } |
| |
| return buttonAssignments; |
| } |
| |
| public static String getButtonName(AWTEvent event) { |
| if (event == null) { |
| throw new IllegalArgumentException("AWTEvent parameter cannot be null"); |
| } |
| Object source = event.getSource(); |
| if (source instanceof XButton) { |
| XButton button = (XButton) source; |
| return button.getName(); |
| } else { |
| return null; |
| } |
| } |
| |
| protected ButtonEventConfig() { |
| } |
| |
| protected ButtonEventConfig(Element element) { |
| this.buttonName = element.getAttribute("button-name"); |
| this.className = element.getAttribute("class-name"); |
| this.method = element.getAttribute("method-name"); |
| String keyCodeStr = element.getAttribute("key-code"); |
| if (UtilValidate.isNotEmpty(keyCodeStr)) { |
| try { |
| this.keyCode = Integer.parseInt(keyCodeStr); |
| } catch (Throwable t) { |
| Debug.logWarning("Key code definition for button [" + buttonName + "] is not a valid Integer", module); |
| } |
| } |
| this.disableLock = "true".equals(element.getAttribute("disable-lock")); |
| } |
| |
| public String getName() { |
| return this.buttonName; |
| } |
| |
| public int getKeyCode() { |
| return this.keyCode; |
| } |
| |
| public boolean isLockable() { |
| return !disableLock; |
| } |
| |
| public void invoke(PosScreen pos, AWTEvent event) throws ButtonEventNotFound, ButtonEventException { |
| ClassLoader cl = Thread.currentThread().getContextClassLoader(); |
| if (cl == null) { |
| Debug.logInfo("Unable to obtain the context classloader", module); |
| cl = this.getClass().getClassLoader(); |
| } |
| |
| // two variations are available |
| Class<?>[] paramTypes1 = new Class[] { PosScreen.class, AWTEvent.class }; |
| Class<?>[] paramTypes2 = new Class[] { PosScreen.class }; |
| Object[] params1 = new Object[] { pos, event }; |
| Object[] params2 = new Object[] { pos }; |
| |
| // load the class |
| Class<?> buttonClass = null; |
| try { |
| buttonClass = cl.loadClass(this.className); |
| } catch (ClassNotFoundException e) { |
| throw new ButtonEventNotFound(e); |
| } |
| |
| // load the method |
| Method buttonMethod = null; |
| int methodType = 0; |
| try { |
| buttonMethod = buttonClass.getMethod(this.method, paramTypes1); |
| methodType = 1; |
| } catch (NoSuchMethodException e) { |
| try { |
| buttonMethod = buttonClass.getMethod(this.method, paramTypes2); |
| methodType = 2; |
| } catch (NoSuchMethodException e2) { |
| Debug.logError(e2, "No method found with matching signatures - " + this.buttonName, module); |
| throw new ButtonEventNotFound(e); |
| } |
| } |
| |
| // invoke the method |
| try { |
| switch (methodType) { |
| case 1: |
| buttonMethod.invoke(null, params1); |
| break; |
| case 2: |
| buttonMethod.invoke(null, params2); |
| break; |
| default: |
| throw new ButtonEventNotFound("No class method found for button - " + this.buttonName); |
| } |
| } catch (IllegalAccessException e) { |
| throw new ButtonEventException(e); |
| } catch (InvocationTargetException e) { |
| throw new ButtonEventException(e); |
| } catch (Throwable t) { |
| throw new ButtonEventException(t); |
| } |
| } |
| |
| public static class ButtonEventNotFound extends GeneralException { |
| public ButtonEventNotFound() { |
| super(); |
| } |
| |
| public ButtonEventNotFound(String str) { |
| super(str); |
| } |
| |
| public ButtonEventNotFound(String str, Throwable nested) { |
| super(str, nested); |
| } |
| |
| public ButtonEventNotFound(Throwable nested) { |
| super(nested); |
| } |
| } |
| |
| public static class ButtonEventException extends GeneralException { |
| public ButtonEventException() { |
| super(); |
| } |
| |
| public ButtonEventException(String str) { |
| super(str); |
| } |
| |
| public ButtonEventException(String str, Throwable nested) { |
| super(str, nested); |
| } |
| |
| public ButtonEventException(Throwable nested) { |
| super(nested); |
| } |
| } |
| } |