Zk java代码生成器

hw_alex

比如你有一个index.zul页面，代码如下：
<window id="hello" use="com.yourcompany.example.Hello">  <button id="hellowWorldButton" /></window>

给这个主程序类传5个参数，就可以得到最终的java文件。
java生成器代码：
package com.yourcompany.applications;import com.yourcompany.generators.ZKWindowFileGenerator;public class ZKWindowFileGeneratorMain {/** * Method : main *  * @param args */public static void main(String[] args) {if (args.length != 5) {System.out.println("Usage: java ZKWindowFileGeneratorMain inputFileDir inputFileName outputFileDir outputFileName packageName");System.exit(0);}String inputFileDir = args[0]; //输入路径String inputFileName = args[1];//输入.zul文件名String outputFileDir = args[2];//输出路径String outputFileName = args[3]; //输出.java文件名String packageName = args[4];  //java文件包名ZKWindowFileGenerator generator = null;generator = new ZKWindowFileGenerator(inputFileDir, inputFileName, outputFileDir, outputFileName, packageName);try {generator.generate();} catch (Exception e) {// Already printed out and logged in the DHgZKWindowFileGenerator// class.}}}
package com.yourcompany.generators;import java.io.BufferedReader;import java.io.FileReader;import java.io.IOException;public class ZKCodeGenerator{private String nl = "\n";/** *  * Method : generateMethodComment  * @param methodName * @param description * @param params * @param hasReturnType * @return */protected String generateMethodComment(String methodName,   String description,   String params[],   boolean hasReturnType){StringBuffer comment = new StringBuffer();comment.append("    /**" + nl);        comment.append("     * Method : " + methodName + nl );        if (description.length() > 70)        {        String commentString = description;        while (commentString.length() > 0)        {        // Grab the first 50 characters        int length = commentString.length();        int endIndex  = 69;        if (length < 69)        endIndex = length;        String stringToPrint = commentString.substring(0,endIndex);                 comment.append("     *    " + stringToPrint + nl);            // Remove the part that we just used.                commentString = commentString.substring(endIndex);                }        }        else        comment.append("     *    " + description + nl);                if (params != null)        {        for (int i=0;i<params.length;i++)        {        String param = params[i];        comment.append("     * @param " + param + nl);        }        }                if (hasReturnType)        {        comment.append("     * @return " + nl);                }        comment.append("     */" + nl);        return comment.toString();}/** *  * Method : readHeaderCommentsFromFile  * @param fileName - this should include full path information to the file. Ex. /home/root/headers/headerFile.txt * @return * @throws IOException */protected String readHeaderCommentsFromFile(String fileName) throws IOException{BufferedReader in = new BufferedReader(new FileReader(fileName));StringBuffer header = new StringBuffer();String currentLine;while ((currentLine = in.readLine()) != null){header.append(currentLine + "\n");}in.close();return header.toString();}/** *  * Method : getHeaderComments  * @param project * @param fileName * @param packageName * @param className * @param author * @param locationOfUse * @param type * @param description * @return */protected String getHeaderComments(String project,   String fileName,   String packageName,   String className,   String author,   String locationOfUse,   String type,   String description){String nl = new String("\n");StringBuffer buff = new StringBuffer();buff.append("/**" + nl); buff.append("* _YourCompany_ Copyright 2007. All Rights Reserved." + nl); buff.append("* " + nl); buff.append("* Project     : " + project + nl); buff.append("* Filename    : " + fileName + nl); buff.append("* Package     : " + packageName + nl); buff.append("* Class       : " + className + nl); buff.append("* Create Date : " + nl); buff.append("* Author      :  " + author + nl); buff.append("*" + nl); buff.append("* Location of Use :  " + locationOfUse + nl); buff.append("*" + nl); buff.append("* Type : " + type + nl); buff.append("* " + nl); buff.append("* Description: " + description + nl); buff.append("*  " + nl); buff.append("*/" + nl); return buff.toString();}/** *  * Method : getHeaderComments  * @return */protected String getHeaderComments(){String nl = new String("\n");StringBuffer buff = new StringBuffer();buff.append("/**" + nl);buff.append("* _YourCompany_ Copyright 2007. All Rights Reserved."+ nl);buff.append("* " + nl);buff.append("* Project     : " +  nl);buff.append("* Filename    : " +  nl);buff.append("* Package     : " +  nl);buff.append("* Class       : " +  nl);buff.append("* Create Date : " + nl);buff.append("* Author      :  " +  nl);buff.append("*" + nl);buff.append("* Location of Use :  " +  nl);buff.append("*" + nl);buff.append("* Type : " +  nl);buff.append("* " + nl);buff.append("* Description: TODO" +  nl);buff.append("*  " + nl);buff.append("*/" + nl);return buff.toString();}}

/** * Description:  *  *  This class will take in a ZK .zul file and from that file generate the class that  *  extends the zk Window class. It will generate the member variables, the widget lookups in the *  onCreate method, and all callback methods that are defined in the .zul file. This will save alot *  of time dealing with the very tedious part of creating .zul files and the corresponding java file. *  */package com.yourcompany.generators;import java.io.FileWriter;import java.io.IOException;import java.util.Iterator;import java.util.List;import java.util.Vector;import org.apache.log4j.Logger;import org.jdom.Document;import org.jdom.Element;import org.jdom.JDOMException;import org.jdom.input.SAXBuilder;public class ZKWindowFileGenerator extends ZKCodeGenerator {private static Logger logger = Logger.getLogger(ZKWindowFileGenerator.class);private String className = null;private String zkFileName = null;private String zkFileDirectory = null;private String outputFilePackage = null;private String outputFileName = null;private String outputDirectory = null;private FileWriter writer = null;private Vector components = new Vector();/** * Constructor *  * @param zkFileName */public ZKWindowFileGenerator(String zkFileDirectory, String zkFileName, String outputDirectory,String outputFileName, String outputFilePackage) {super();this.zkFileName = zkFileName;this.zkFileDirectory = zkFileDirectory;this.outputFileName = outputFileName;this.outputDirectory = outputDirectory;this.outputFilePackage = outputFilePackage;}public void generate() throws Exception {parseInputFile();generateOutputFile();}/** * Method : parseInputFile *  */private void parseInputFile() throws Exception {String fileName = null;fileName = zkFileDirectory + zkFileName;SAXBuilder builder = new SAXBuilder();try {Document doc = builder.build(fileName);Element root = doc.getRootElement();this.processDocument(root, 0);}// indicates a well-formedness errorcatch (JDOMException e) {System.out.println(fileName + " is not well-formed.");System.out.println(e.getMessage());} catch (IOException e) {System.out.println(e);}}/** * Method: processDocument Processes the the zul file as DOM tree to get the * components with theire id's and callBackMethod *  * @param current *            node * @param depth *            Used to go deeper in DOM tree (recursive) */public void processDocument(Element current, int depth) {// if component has no id then ignore itif (current.getAttributeValue("id") != null) {String idString = current.getAttributeValue("id");String componentName = current.getName();String callbackMethod = "";// Get callBackMethod if there is anyif (componentName.equals("button")) {if (current.getAttributeValue("onClick") != null) {String callBackString = current.getAttributeValue("onClick");int indexOfDotInCallBack = callBackString.indexOf(".");callbackMethod = callBackString.substring(indexOfDotInCallBack + 1);}}if (componentName.equals("listbox")) {if (current.getAttributeValue("onSelect") != null) {String callBackString = current.getAttributeValue("onSelect");int indexOfDotInCallBack = callBackString.indexOf(".");callbackMethod = callBackString.substring(indexOfDotInCallBack + 1);}}if (componentName.equals("checkbox") || componentName.equals("radiogroup")) {if (current.getAttributeValue("onCheck") != null) {String callBackString = current.getAttributeValue("onCheck");int indexOfDotInCallBack = callBackString.indexOf(".");callbackMethod = callBackString.substring(indexOfDotInCallBack + 1);}}ZKComponentHolder componentHolder = new ZKComponentHolder(componentName, idString, callbackMethod);components.add(componentHolder);}List children = current.getChildren();Iterator iterator = children.iterator();while (iterator.hasNext()) {Element child = (Element) iterator.next();processDocument(child, depth + 1);}}/** *  * Method : generateOutputFile */private void generateOutputFile() throws Exception {setClassName();String fileName = outputDirectory + outputFileName;writer = new FileWriter(fileName);writer.write(getHeaderComments() + "\n\n\n");writer.write("package " + outputFilePackage + ";\n\n\n");writer.write(generateImportStatements() + "\n\n\n");writer.write("class " + className + " extends Window\n");writer.write("{\n\n");generateMemberVariables();generateOnCreateMethod();generateCallbackMethods();generateInitializeComponentsMethod();generateInitializeListBoxMethods();writer.write("}\n");writer.flush();writer.close();}/** *  * Method : setClassName */private void setClassName() {// int indexOfDot = zkFileName.indexOf(".");// Use the name of output (java) file instead of zul file as class nameint indexOfDot = outputFileName.indexOf(".");className = outputFileName.substring(0, indexOfDot);}/** *  * Method : generateImportStatemens *  * @return */private String generateImportStatements() {StringBuffer buff = new StringBuffer();buff.append("import org.apache.log4j.Logger;\n");buff.append("import org.zkoss.zk.ui.Executions;\n");buff.append("import org.zkoss.zul.Button;\n");buff.append("import org.zkoss.zul.Messagebox;\n");buff.append("import org.zkoss.zul.Textbox;\n");buff.append("import org.zkoss.zul.Intbox;\n");buff.append("import org.zkoss.zul.Window;\n");buff.append("import org.zkoss.zul.Listbox;\n");buff.append("import org.zkoss.zul.Radiogroup;\n");buff.append("import org.zkoss.zul.Checkbox;\n\n");return buff.toString();}/** *  * Method : generateMemberVariables *  * @throws Exception */private void generateMemberVariables() throws Exception {writer.write("    private static Logger logger = Logger.getLogger(" + className + ".class);\n");Iterator it = components.iterator();while (it.hasNext()) {ZKComponentHolder holder = (ZKComponentHolder) it.next();System.out.println("Type = " + holder.type + " Id = " + holder.id + " Callback = " + holder.callbackMethod);if (holder.type.compareTo("listbox") == 0) {writer.write("    private Listbox " + holder.id + " = null;\n");} else if (holder.type.compareTo("textbox") == 0) {writer.write("    private Textbox " + holder.id + " = null;\n");} else if (holder.type.compareTo("intbox") == 0) {writer.write("    private Intbox " + holder.id + " = null;\n");} else if (holder.type.compareTo("button") == 0) {writer.write("    private Button " + holder.id + " = null;\n");} else if (holder.type.compareTo("radiogroup") == 0) {writer.write("    private Radiogroup " + holder.id + " = null;\n");} else if (holder.type.compareTo("checkbox") == 0) {writer.write("    private Checkbox " + holder.id + " = null;\n");}}writer.write("\n\n\n");}/** *  * Method : generateOnCreateMethod *  * @throws Exception */private void generateOnCreateMethod() throws Exception {writer.write(generateMethodComment("onCreate", "", null, false));writer.write("    public void onCreate()\n");writer.write("    {\n");writer.write("        initializeComponents();\n");Iterator it = components.iterator();while (it.hasNext()) {ZKComponentHolder holder = (ZKComponentHolder) it.next();if (holder.type.compareTo("listbox") == 0) {String id = holder.id;String firstChar = id.substring(0, 1);id = firstChar.toUpperCase() + id.substring(1);writer.write("        initialize" + id + "ListBox();\n");}}writer.write("    }\n\n\n\n");}/** *  * Method : generateInitializeComponentsMethod *  * @throws Exception */private void generateInitializeComponentsMethod() throws Exception {writer.write(generateMethodComment("initializeComponents", "", null, false));writer.write("    public void initializeComponents()\n");writer.write("    {\n");Iterator it = components.iterator();while (it.hasNext()) {ZKComponentHolder holder = (ZKComponentHolder) it.next();if (holder.type.compareTo("listbox") == 0) {writer.write("        " + holder.id + " = (Listbox)this.getFellow(\"" + holder.id + "\");\n");} else if (holder.type.compareTo("textbox") == 0) {writer.write("        " + holder.id + " = (Textbox)this.getFellow(\"" + holder.id + "\");\n");} else if (holder.type.compareTo("intbox") == 0) {writer.write("        " + holder.id + " = (Intbox)this.getFellow(\"" + holder.id + "\");\n");} else if (holder.type.compareTo("button") == 0) {writer.write("        " + holder.id + " = (Button)this.getFellow(\"" + holder.id + "\");\n");} else if (holder.type.compareTo("radiogroup") == 0) {writer.write("        " + holder.id + " = (Radiogroup)this.getFellow(\"" + holder.id + "\");\n");} else if (holder.type.compareTo("checkbox") == 0) {writer.write("        " + holder.id + " = (Checkbox)this.getFellow(\"" + holder.id + "\");\n");}}writer.write("    }\n\n\n\n");}/** *  * Method : generateInitializeListBoxMethods *  * @throws Exception */private void generateInitializeListBoxMethods() throws Exception {Iterator it = components.iterator();while (it.hasNext()) {ZKComponentHolder holder = (ZKComponentHolder) it.next();if (holder.type.compareTo("listbox") == 0) {String id = holder.id;String firstChar = id.substring(0, 1);id = firstChar.toUpperCase() + id.substring(1);writer.write(generateMethodComment("initialize" + id + "ListBox", "", null, false));writer.write("    public void initialize" + id + "ListBox()\n");writer.write("    {\n");writer.write("    }\n\n\n\n");}}}/** *  * Method : generateCallbackMethods *  * @throws Exception */private void generateCallbackMethods() throws Exception {Iterator it = components.iterator();while (it.hasNext()) {ZKComponentHolder holder = (ZKComponentHolder) it.next();if (holder.callbackMethod.length() > 0) {writer.write(generateMethodComment(holder.callbackMethod, "", null, false));writer.write("    public void " + holder.callbackMethod + "\n");writer.write("    {\n\n");writer.write("    }\n\n");}}}/** * Embedded class for holding component info */protected class ZKComponentHolder {public String type;public String id;public String callbackMethod;/** * Constructor *  * @param type * @param id * @param callbackMethod */public ZKComponentHolder(String type, String id, String callbackMethod) {super();this.type = type;this.id = id;this.callbackMethod = callbackMethod;}}/** * Getter for outputFileName *  * @return Returns the outputFileName. */public String getOutputFileName() {return this.outputFileName;}/** * Setter for outputFileName *  * @param outputFileName *            The outputFileName to set. */public void setOutputFileName(String outputFileName) {this.outputFileName = outputFileName;}/** * Getter for writer *  * @return Returns the writer. */public FileWriter getWriter() {return this.writer;}/** * Setter for writer *  * @param writer *            The writer to set. */public void setWriter(FileWriter writer) {this.writer = writer;}}

指定5个参数分别是：
args[0] = "D:/javacreator/zul/example/";
args[1] = "index.zul";
args[2] = "D:/javacreator/java/example/";
args[3] = "Hello.java";
args[4] = "com.yourcompany.example";

最后D:/javacreator/java/example/目录下生成的Hello.java文件代码：
/*** _YourCompany_ Copyright 2007. All Rights Reserved.* * Project     : * Filename    : * Package     : * Class       : * Create Date : * Author      :  ** Location of Use :  ** Type : * * Description: TODO*  */package com.yourcompany.example;import org.apache.log4j.Logger;import org.zkoss.zk.ui.Executions;import org.zkoss.zul.Button;import org.zkoss.zul.Messagebox;import org.zkoss.zul.Textbox;import org.zkoss.zul.Intbox;import org.zkoss.zul.Window;import org.zkoss.zul.Listbox;import org.zkoss.zul.Radiogroup;import org.zkoss.zul.Checkbox;class Hello extends Window{    private static Logger logger = Logger.getLogger(Hello.class);    private Button hellowWorldButton = null;    /**     * Method : onCreate     *         */    public void onCreate()    {        initializeComponents();    }    /**     * Method : hellowWorldButtonOnClickHandler()     *         */    public void hellowWorldButtonOnClickHandler()    {    }    /**     * Method : initializeComponents     *         */    public void initializeComponents()    {      hellowWorldButton = (Button)this.getFellow("hellowWorldButton");    }}