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com.clickntap.build.BuildCompiler Maven / Gradle / Ivy

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package com.clickntap.build;

import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.nio.file.Path;
import java.nio.file.Paths;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

import org.apache.commons.io.FileUtils;
import org.apache.commons.io.FilenameUtils;
import org.apache.commons.io.monitor.FileAlterationListener;
import org.apache.commons.io.monitor.FileAlterationMonitor;
import org.apache.commons.io.monitor.FileAlterationObserver;
import org.dom4j.Element;
import org.springframework.core.io.Resource;

import com.cathive.sass.SassContext;
import com.cathive.sass.SassFileContext;
import com.cathive.sass.SassOptions;
import com.cathive.sass.SassOutputStyle;
import com.clickntap.api.ApiUtils;
import com.clickntap.api.HttpUtils;
import com.clickntap.hub.App;
import com.clickntap.tool.f.FJson;
import com.clickntap.tool.f.T;
import com.clickntap.tool.script.FreemarkerScriptEngine;
import com.clickntap.utils.ConstUtils;
import com.clickntap.utils.LessUtils;
import com.clickntap.utils.SecurityUtils;
import com.clickntap.utils.XMLUtils;

public class BuildCompiler implements FileAlterationListener {
  private Resource uiWorkDir;
  private App app;
  private FileAlterationMonitor monitor;
  private boolean compress;
  private Map libsMap;
  private T t;
  private FJson fj;

  public boolean isCompress() {
    return compress;
  }

  public void setCompress(boolean compress) {
    this.compress = compress;
  }

  public App getApp() {
    return app;
  }

  public void setApp(App app) {
    this.app = app;
  }

  public void init() throws Exception {
    t = new T();
    t.setUiDir(uiWorkDir);
    fj = new FJson();
    fj.setUiDir(uiWorkDir);
    libsMap = new HashMap();
    File directory = getUiWorkDir().getFile();
    FileAlterationObserver observer = new FileAlterationObserver(directory);
    observer.addListener(this);
    monitor = new FileAlterationMonitor(500);
    monitor.addObserver(observer);
    monitor.start();
  }

  public Element getConf() throws Exception {
    File confFile = new File(uiWorkDir.getFile().getCanonicalPath() + "/lib/libs.xml");
    Element root = XMLUtils.copyFrom(confFile).getRootElement();
    return root;
  }

  public void destroy() throws Exception {
    monitor.stop();
  }

  public Resource getUiWorkDir() {
    return uiWorkDir;
  }

  public void setUiWorkDir(Resource uiWorkDir) {
    this.uiWorkDir = uiWorkDir;
  }

  public String src(String resource) throws Exception {
    File file = new File(getUiWorkDir().getFile().getParentFile() + "/" + resource);
    if (file.exists()) {
      return resource + "?" + SecurityUtils.md5(file);
    }
    return ConstUtils.EMPTY;
  }

  public String http(String resource) throws Exception {
    return HttpUtils.get(resource);
  }

  public void onStart(FileAlterationObserver observer) {

  }

  public void onDirectoryCreate(File directory) {

  }

  public void onDirectoryChange(File directory) {

  }

  public void onDirectoryDelete(File directory) {

  }

  public void onFileCreate(File file) {
  }

  public FreemarkerScriptEngine getEngine() throws Exception {
    FreemarkerScriptEngine engine = new FreemarkerScriptEngine();
    engine.setTemplateDir(getUiWorkDir());
    engine.setExtension(ConstUtils.EMPTY);
    engine.setUpdateDelay(0);
    engine.start();
    return engine;
  }

  public File precompile(File file) {
    File f = tmpFile(file);
    try {
      String templateName = templateName(file);
      Map ctx = new HashMap();
      ctx.put(ConstUtils.THIS, this);
      FileOutputStream out = new FileOutputStream(f);
      getEngine().eval(ctx, templateName, out);
      out.close();
    } catch (Exception e) {
      e.printStackTrace();
    }
    return f;
  }

  protected File tmpFile(File file) {
    return new File(file.getParentFile(), file.getName() + ".tmp");
  }

  public String templateName(File file) {
    String templateName = null;
    try {
      String dirPath = getUiWorkDir().getFile().getCanonicalPath();
      String filePath = file.getCanonicalPath();
      templateName = filePath.substring(dirPath.length() + 1);
    } catch (IOException e) {
    }
    return templateName;
  }

  private void lessCompile(File file) {
    if (file.getName().equals("conf.less"))
      return;
    long lo = System.currentTimeMillis();
    File tmpFile = null;
    try {
      tmpFile = precompile(file);
      LessUtils.compile(tmpFile);
      File cssFile = new File(tmpFile.getAbsolutePath().replace(".tmp", ".css"));
      File destFile = new File(tmpFile.getParentFile().getAbsolutePath() + "/css/" + tmpFile.getName().replace(".less.tmp", ".css"));
      destFile.getParentFile().mkdirs();
      if (getUiWorkDir().getFile().getAbsolutePath().equals(file.getParentFile().getAbsolutePath())) {
        StringBuffer sb;
        try {
          sb = libs("css");
        } catch (Exception e) {
          sb = new StringBuffer();
        }
        sb.append(FileUtils.readFileToString(cssFile, ConstUtils.UTF_8));
        cssFile.delete();
        FileUtils.writeStringToFile(destFile, sb.toString(), ConstUtils.UTF_8);
      } else {
        cssFile.renameTo(destFile);
      }
    } catch (Exception e) {
      e.printStackTrace();
    } finally {
      try {
        tmpFile.delete();
      } catch (Exception e) {
      }
    }
    System.out.println(file.getName() + " compiled in " + (System.currentTimeMillis() - lo) + " millis");
  }

  public String jsCompress(String js) throws Exception {
    if (compress) {
      return ApiUtils.jsCompile(js);
    } else {
      return js;
    }
  }

  private void jsCompile(File file) {
    long lo = System.currentTimeMillis();
    File tmpFile = null;
    try {
      tmpFile = precompile(file);
      File destFile = new File(tmpFile.getParentFile().getAbsolutePath() + "/js/" + tmpFile.getName().replace(".js.tmp", ".js"));
      destFile.getParentFile().mkdirs();
      if (getUiWorkDir().getFile().getAbsolutePath().equals(file.getParentFile().getAbsolutePath())) {
        StringBuffer sb;
        try {
          sb = libs("js");
        } catch (Exception e) {
          sb = new StringBuffer();
        }
        sb.append(jsCompress(FileUtils.readFileToString(tmpFile, ConstUtils.UTF_8)));
        tmpFile.delete();
        FileUtils.writeStringToFile(destFile, sb.toString(), ConstUtils.UTF_8);
      } else {
        tmpFile.renameTo(destFile);
      }
    } catch (Exception e) {
      e.printStackTrace();
    } finally {
      try {
        tmpFile.delete();
      } catch (Exception e) {
      }
    }
    System.out.println(file.getName() + " compiled in " + (System.currentTimeMillis() - lo) + " millis");
  }

  private StringBuffer libs(String extension) throws Exception {
    if (libsMap.containsKey(extension)) {
      return new StringBuffer(libsMap.get(extension));
    }
    StringBuffer sb = new StringBuffer();
    for (Element lib : (List) getConf().elements("lib")) {
      File libFile = new File(getUiWorkDir().getFile().getCanonicalPath() + "/lib/" + extension + "/" + lib.attributeValue("src"));
      if (FilenameUtils.getExtension(lib.attributeValue("src")).equals(extension)) {
        String url = lib.attributeValue("url");
        sb.append('\n').append('\n');
        if (url != null) {
          sb.append(HttpUtils.get(url));
        } else {
          sb.append(FileUtils.readFileToString(libFile, ConstUtils.UTF_8));
        }
        sb.append('\n').append('\n');
      }
    }
    sb.append('\n').append('\n');
    libsMap.put(extension, sb.toString());
    return sb;
  }

  private void compile(File changedFile) throws Exception {
    String extension = FilenameUtils.getExtension(changedFile.getName());
    if (extension.equals("less")) {
      lessCompile(changedFile);
    }
    if (extension.equals("js")) {
      jsCompile(changedFile);
    }
    if (extension.equals("sass")) {
      Path srcRoot = Paths.get(changedFile.getParentFile().getCanonicalPath());
      SassContext ctx = SassFileContext.create(srcRoot.resolve(changedFile.getName()));
      SassOptions options = ctx.getOptions();
      options.setOutputStyle(SassOutputStyle.COMPRESSED);
      File minFile = new File(changedFile.getParentFile().getAbsolutePath() + "/" + changedFile.getName().replace(".sass", ".css"));
      FileUtils.writeStringToFile(minFile, ctx.compile(), ConstUtils.UTF_8);
    }
  }

  public void onFileChange(File changedFile) {
    try {
      String extension = FilenameUtils.getExtension(changedFile.getName());
      if ("html".equalsIgnoreCase(extension)) {
        t.compile();
        return;
      }
      if ("json".equalsIgnoreCase(extension) && !changedFile.getCanonicalPath().contains("/lib/")) {
        fj.compile();
        return;
      }
      String filePath = changedFile.getAbsolutePath();
      String dirPath = uiWorkDir.getFile().getAbsolutePath();
      filePath = filePath.replace(dirPath, "");
      int n = 0;
      int x = 0;
      while ((x = filePath.indexOf('/')) >= 0) {
        n++;
        filePath = filePath.substring(x + 1);
      }
      if (n <= 4) {
        if (extension.equalsIgnoreCase("js") || extension.endsWith("ss")) {
          String code = FileUtils.readFileToString(changedFile, ConstUtils.UTF_8).trim();
          String formattedCode = ApiUtils.codeFormat(code).trim();
          if (!code.equals(formattedCode)) {
            FileUtils.writeByteArrayToFile(changedFile, formattedCode.trim().getBytes(ConstUtils.UTF_8));
            return;
          }
        }
        if (changedFile.getParentFile().getAbsolutePath().endsWith(extension)) {
          return;
        }
        File workDir = getUiWorkDir().getFile();
        File fileDir = changedFile.getParentFile();
        if (workDir.getAbsolutePath().equalsIgnoreCase(fileDir.getAbsolutePath())) {
          compile(changedFile);
        } else {
          for (File file : getUiWorkDir().getFile().listFiles()) {
            String fileExtension = FilenameUtils.getExtension(file.getName());
            if ((fileExtension.equalsIgnoreCase("js") && extension.equalsIgnoreCase("js")) || (fileExtension.endsWith("ss") && extension.endsWith("ss"))) {
              compile(file);
            }
          }
        }
      }
    } catch (Exception e) {
      e.printStackTrace();
    }

  }

  public void onFileDelete(File file) {

  }

  public void onStop(FileAlterationObserver observer) {

  }

}




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