Java tutorial
/* * JSwiff is an open source Java API for Macromedia Flash file generation * and manipulation * * Copyright (C) 2004-2005 Ralf Terdic (contact@jswiff.com) * * 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 2 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, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ package com.jswiff.xml; import com.jswiff.swfrecords.RegisterParam; import com.jswiff.swfrecords.actions.*; import com.jswiff.util.Base64; import org.dom4j.Attribute; import org.dom4j.Element; import java.util.Iterator; import java.util.List; class ActionXMLReader { static Action readAction(Element element) { String name = element.getName(); Action action; if (name.equals("add")) { action = new Add(); } else if (name.equals("add2")) { action = new Add2(); } else if (name.equals("and")) { action = new And(); } else if (name.equals("asciitochar")) { action = new AsciiToChar(); } else if (name.equals("bitand")) { action = new BitAnd(); } else if (name.equals("bitlshift")) { action = new BitLShift(); } else if (name.equals("bitor")) { action = new BitOr(); } else if (name.equals("bitrshift")) { action = new BitRShift(); } else if (name.equals("biturshift")) { action = new BitURShift(); } else if (name.equals("bitxor")) { action = new BitXor(); } else if (name.equals("call")) { action = new Call(); } else if (name.equals("callfunction")) { action = new CallFunction(); } else if (name.equals("callmethod")) { action = new CallMethod(); } else if (name.equals("castop")) { action = new CastOp(); } else if (name.equals("chartoascii")) { action = new CharToAscii(); } else if (name.equals("clonesprite")) { action = new CloneSprite(); } else if (name.equals("constantpool")) { action = readConstantPool(element); } else if (name.equals("decrement")) { action = new Decrement(); } else if (name.equals("definefunction")) { action = readDefineFunction(element); } else if (name.equals("definefunction2")) { action = readDefineFunction2(element); } else if (name.equals("definelocal")) { action = new DefineLocal(); } else if (name.equals("definelocal2")) { action = new DefineLocal2(); } else if (name.equals("delete")) { action = new Delete(); } else if (name.equals("delete2")) { action = new Delete2(); } else if (name.equals("divide")) { action = new Divide(); } else if (name.equals("enddrag")) { action = new EndDrag(); } else if (name.equals("enumerate")) { action = new Enumerate(); } else if (name.equals("enumerate2")) { action = new Enumerate2(); } else if (name.equals("equals")) { action = new Equals(); } else if (name.equals("equals2")) { action = new Equals2(); } else if (name.equals("extends")) { action = new Extends(); } else if (name.equals("getmember")) { action = new GetMember(); } else if (name.equals("getproperty")) { action = new GetProperty(); } else if (name.equals("gettime")) { action = new GetTime(); } else if (name.equals("geturl")) { action = readGetURL(element); } else if (name.equals("geturl2")) { action = readGetURL2(element); } else if (name.equals("getvariable")) { action = new GetVariable(); } else if (name.equals("gotoframe")) { action = readGoToFrame(element); } else if (name.equals("gotoframe2")) { action = readGoToFrame2(element); } else if (name.equals("gotolabel")) { action = readGoToLabel(element); } else if (name.equals("greater")) { action = new Greater(); } else if (name.equals("if")) { action = readIf(element); } else if (name.equals("implementsop")) { action = new ImplementsOp(); } else if (name.equals("increment")) { action = new Increment(); } else if (name.equals("initarray")) { action = new InitArray(); } else if (name.equals("initobject")) { action = new InitObject(); } else if (name.equals("instanceof")) { action = new InstanceOf(); } else if (name.equals("jump")) { action = readJump(element); } else if (name.equals("less")) { action = new Less(); } else if (name.equals("less2")) { action = new Less2(); } else if (name.equals("mbasciitochar")) { action = new MBAsciiToChar(); } else if (name.equals("mbchartoascii")) { action = new MBCharToAscii(); } else if (name.equals("mbstringextract")) { action = new MBStringExtract(); } else if (name.equals("mbstringlength")) { action = new MBStringLength(); } else if (name.equals("modulo")) { action = new Modulo(); } else if (name.equals("multiply")) { action = new Multiply(); } else if (name.equals("newmethod")) { action = new NewMethod(); } else if (name.equals("newobject")) { action = new NewObject(); } else if (name.equals("nextframe")) { action = new NextFrame(); } else if (name.equals("not")) { action = new Not(); } else if (name.equals("or")) { action = new Or(); } else if (name.equals("play")) { action = new Play(); } else if (name.equals("pop")) { action = new Pop(); } else if (name.equals("previousframe")) { action = new PreviousFrame(); } else if (name.equals("push")) { action = readPush(element); } else if (name.equals("pushduplicate")) { action = new PushDuplicate(); } else if (name.equals("randomnumber")) { action = new RandomNumber(); } else if (name.equals("removesprite")) { action = new RemoveSprite(); } else if (name.equals("return")) { action = new Return(); } else if (name.equals("setmember")) { action = new SetMember(); } else if (name.equals("setproperty")) { action = new SetProperty(); } else if (name.equals("settarget")) { action = readSetTarget(element); } else if (name.equals("settarget2")) { action = new SetTarget2(); } else if (name.equals("setvariable")) { action = new SetVariable(); } else if (name.equals("stackswap")) { action = new StackSwap(); } else if (name.equals("startdrag")) { action = new StartDrag(); } else if (name.equals("stop")) { action = new Stop(); } else if (name.equals("stopsounds")) { action = new StopSounds(); } else if (name.equals("storeregister")) { action = readStoreRegister(element); } else if (name.equals("strictequals")) { action = new StrictEquals(); } else if (name.equals("stringadd")) { action = new StringAdd(); } else if (name.equals("stringequals")) { action = new StringEquals(); } else if (name.equals("stringextract")) { action = new StringExtract(); } else if (name.equals("stringgreater")) { action = new StringGreater(); } else if (name.equals("stringlength")) { action = new StringLength(); } else if (name.equals("stringless")) { action = new StringLess(); } else if (name.equals("subtract")) { action = new Subtract(); } else if (name.equals("targetpath")) { action = new TargetPath(); } else if (name.equals("throw")) { action = new Throw(); } else if (name.equals("tointeger")) { action = new ToInteger(); } else if (name.equals("tonumber")) { action = new ToNumber(); } else if (name.equals("tostring")) { action = new ToString(); } else if (name.equals("togglequality")) { action = new ToggleQuality(); } else if (name.equals("trace")) { action = new Trace(); } else if (name.equals("try")) { action = readTry(element); } else if (name.equals("typeof")) { action = new TypeOf(); } else if (name.equals("waitforframe")) { action = readWaitForFrame(element); } else if (name.equals("waitforframe2")) { action = readWaitForFrame2(element); } else if (name.equals("with")) { action = readWith(element); } else if (name.equals("unknownaction")) { action = readUnknownAction(element); } else { throw new IllegalArgumentException("Unexpected action record name: " + name); } Attribute label = element.attribute("label"); if (label != null) { action.setLabel(label.getValue()); } return action; } private static ConstantPool readConstantPool(Element element) { List constantElements = element.elements(); ConstantPool constantPool = new ConstantPool(); List constants = constantPool.getConstants(); for (Iterator it = constantElements.iterator(); it.hasNext();) { Element constantElement = (Element) it.next(); String content = RecordXMLReader.getElement("value", constantElement).getText(); String constant = (RecordXMLReader.getBooleanAttribute("base64", constantElement)) ? Base64.decodeString(content) : content; constants.add(constant); } return constantPool; } private static DefineFunction readDefineFunction(Element element) { String name = RecordXMLReader.getStringAttribute("name", element); List parameterElements = RecordXMLReader.getElement("parameters", element).elements(); int arrayLength = parameterElements.size(); String[] parameters = new String[arrayLength]; for (int i = 0; i < arrayLength; i++) { Element parameterElement = (Element) parameterElements.get(i); parameters[i] = RecordXMLReader.getStringAttribute("name", parameterElement); } DefineFunction defineFunction = new DefineFunction(name, parameters); RecordXMLReader.readActionBlock(defineFunction.getBody(), element); return defineFunction; } private static DefineFunction2 readDefineFunction2(Element element) { String name = RecordXMLReader.getStringAttribute("name", element); short registerCount = RecordXMLReader.getShortAttribute("registercount", element); List parameterElements = RecordXMLReader.getElement("parameters", element).elements(); int arrayLength = parameterElements.size(); RegisterParam[] parameters = new RegisterParam[arrayLength]; for (int i = 0; i < arrayLength; i++) { Element parameterElement = (Element) parameterElements.get(i); String paramName = RecordXMLReader.getStringAttribute("name", parameterElement); short register = RecordXMLReader.getShortAttribute("register", parameterElement); parameters[i] = new RegisterParam(register, paramName); } DefineFunction2 defineFunction2 = new DefineFunction2(name, registerCount, parameters); Element preloadElement = RecordXMLReader.getElement("preload", element); if (RecordXMLReader.getBooleanAttribute("arguments", preloadElement)) { defineFunction2.preloadArguments(); } if (RecordXMLReader.getBooleanAttribute("global", preloadElement)) { defineFunction2.preloadGlobal(); } if (RecordXMLReader.getBooleanAttribute("parent", preloadElement)) { defineFunction2.preloadParent(); } if (RecordXMLReader.getBooleanAttribute("root", preloadElement)) { defineFunction2.preloadRoot(); } if (RecordXMLReader.getBooleanAttribute("super", preloadElement)) { defineFunction2.preloadSuper(); } if (RecordXMLReader.getBooleanAttribute("this", preloadElement)) { defineFunction2.preloadThis(); } Element suppressElement = RecordXMLReader.getElement("suppress", element); if (RecordXMLReader.getBooleanAttribute("arguments", suppressElement)) { defineFunction2.suppressArguments(); } if (RecordXMLReader.getBooleanAttribute("super", suppressElement)) { defineFunction2.suppressSuper(); } if (RecordXMLReader.getBooleanAttribute("this", suppressElement)) { defineFunction2.suppressThis(); } RecordXMLReader.readActionBlock(defineFunction2.getBody(), element); return defineFunction2; } private static GetURL readGetURL(Element element) { String url = RecordXMLReader.getStringAttribute("url", element); String target = RecordXMLReader.getStringAttribute("target", element); return new GetURL(url, target); } private static GetURL2 readGetURL2(Element element) { String sendVarsMethodString = RecordXMLReader.getStringAttribute("sendvarsmethod", element); byte sendVarsMethod; if (sendVarsMethodString.equals("get")) { sendVarsMethod = GetURL2.METHOD_GET; } else if (sendVarsMethodString.equals("post")) { sendVarsMethod = GetURL2.METHOD_POST; } else if (sendVarsMethodString.equals("none")) { sendVarsMethod = GetURL2.METHOD_NONE; } else { throw new IllegalArgumentException("Illegal sendvars method: " + sendVarsMethodString); } boolean loadTarget = RecordXMLReader.getBooleanAttribute("loadtarget", element); boolean loadVariables = RecordXMLReader.getBooleanAttribute("loadvariables", element); return new GetURL2(sendVarsMethod, loadTarget, loadVariables); } private static GoToFrame readGoToFrame(Element element) { return new GoToFrame(RecordXMLReader.getIntAttribute("frame", element)); } private static GoToFrame2 readGoToFrame2(Element element) { boolean play = RecordXMLReader.getBooleanAttribute("play", element); int sceneBias = RecordXMLReader.getIntAttribute("scenebias", element); return new GoToFrame2(play, sceneBias); } private static GoToLabel readGoToLabel(Element element) { return new GoToLabel(RecordXMLReader.getStringAttribute("framelabel", element)); } private static If readIf(Element element) { return new If(RecordXMLReader.getStringAttribute("branchlabel", element)); } private static Jump readJump(Element element) { return new Jump(RecordXMLReader.getStringAttribute("branchlabel", element)); } private static Push readPush(Element element) { List valueElements = element.elements(); Push push = new Push(); for (Iterator it = valueElements.iterator(); it.hasNext();) { Element valueElement = (Element) it.next(); String type = valueElement.getName(); Push.StackValue value = new Push.StackValue(); if (type.equals("boolean")) { value.setBoolean(RecordXMLReader.getBooleanAttribute("value", valueElement)); } else if (type.equals("constant16")) { value.setConstant16(RecordXMLReader.getIntAttribute("id", valueElement)); } else if (type.equals("constant8")) { value.setConstant8(RecordXMLReader.getShortAttribute("id", valueElement)); } else if (type.equals("double")) { value.setDouble(RecordXMLReader.getDoubleAttribute("value", valueElement)); } else if (type.equals("float")) { value.setFloat(RecordXMLReader.getFloatAttribute("value", valueElement)); } else if (type.equals("integer")) { value.setInteger(RecordXMLReader.getIntAttribute("value", valueElement)); } else if (type.equals("null")) { value.setNull(); } else if (type.equals("register")) { value.setRegisterNumber(RecordXMLReader.getShortAttribute("number", valueElement)); } else if (type.equals("string")) { value.setString(RecordXMLReader.getStringAttribute("value", valueElement)); } else if (type.equals("undefined")) { value.setUndefined(); } else { throw new IllegalArgumentException("Unexpected stack value type: " + type); } push.addValue(value); } return push; } private static SetTarget readSetTarget(Element element) { return new SetTarget(RecordXMLReader.getStringAttribute("name", element)); } private static StoreRegister readStoreRegister(Element element) { return new StoreRegister(RecordXMLReader.getShortAttribute("number", element)); } private static Try readTry(Element element) { Try tryAction; Attribute catchRegister = element.attribute("catchregister"); if (catchRegister != null) { tryAction = new Try(Short.parseShort(catchRegister.getValue())); } else { Attribute catchVariable = element.attribute("catchvariable"); if (catchVariable != null) { tryAction = new Try(catchVariable.getValue()); } else { throw new MissingNodeException( "Neither catch register nor catch variable specified within try action!"); } } RecordXMLReader.readActionBlock(tryAction.getTryBlock(), RecordXMLReader.getElement("try", element)); Element catchElement = element.element("catch"); if (catchElement != null) { RecordXMLReader.readActionBlock(tryAction.getCatchBlock(), catchElement); } Element finallyElement = element.element("finally"); if (finallyElement != null) { RecordXMLReader.readActionBlock(tryAction.getFinallyBlock(), finallyElement); } return tryAction; } private static UnknownAction readUnknownAction(Element element) { return new UnknownAction(RecordXMLReader.getShortAttribute("code", element), Base64.decode(element.getText())); } private static WaitForFrame readWaitForFrame(Element element) { int frame = RecordXMLReader.getIntAttribute("frame", element); short skipCount = RecordXMLReader.getShortAttribute("skipcount", element); return new WaitForFrame(frame, skipCount); } private static WaitForFrame2 readWaitForFrame2(Element element) { return new WaitForFrame2(RecordXMLReader.getShortAttribute("skipcount", element)); } private static With readWith(Element element) { With with = new With(); RecordXMLReader.readActionBlock(with.getWithBlock(), element); return with; } }