/*
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Dateiverwaltung - File management in your browser
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Copyright (C) 2017 Ulrich Hilger, http://uhilger.de
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU Affero General Public License as
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published by the Free Software Foundation, either version 3 of the
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License, or (at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU Affero General Public License for more details.
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You should have received a copy of the GNU Affero General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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package de.uhilger.filecms.api;
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import de.uhilger.filecms.data.CompilerIssue;
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import java.io.ByteArrayOutputStream;
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import java.io.File;
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import java.io.FileFilter;
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import java.io.IOException;
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import java.io.PrintStream;
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import java.util.ArrayList;
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import java.util.Arrays;
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import java.util.Iterator;
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import java.util.List;
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import java.util.Locale;
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import java.util.logging.Level;
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import java.util.logging.Logger;
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import javax.tools.Diagnostic;
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import javax.tools.DiagnosticCollector;
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import javax.tools.JavaCompiler;
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import javax.tools.JavaFileObject;
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import javax.tools.StandardJavaFileManager;
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import javax.tools.ToolProvider;
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import org.apache.commons.io.FileUtils;
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import org.apache.tomcat.util.log.SystemLogHandler;
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import org.apache.tools.ant.Project;
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import org.apache.tools.ant.ProjectHelper;
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/**
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*
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*/
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public class CompileService extends Api {
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private static final Logger logger = Logger.getLogger(CompileService.class.getName());
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public String antBuild(String relPath) {
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// Create a stream to hold the output
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ByteArrayOutputStream baos = new ByteArrayOutputStream();
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PrintStream ps = new PrintStream(baos);
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// IMPORTANT: Save the old System.out!
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PrintStream old = System.out;
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PrintStream err = System.err;
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// Tell Java to use your special stream
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System.setOut(ps);
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System.setErr(ps);
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File targetDir = getTargetDir(relPath); // App-Ordner
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StringBuilder sb = new StringBuilder();
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sb.append("Ant build ist noch nicht implementiert.");
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sb.append("<br/>");
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sb.append("targetDir: ");
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sb.append(targetDir.getAbsolutePath());
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File buildFile = new File(targetDir, "build.xml");
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Project p = new Project();
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//p.setName("FileCms Build");
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FileCmsBuildListener listener = new FileCmsBuildListener();
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p.addBuildListener(listener);
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p.setUserProperty("ant.file", buildFile.getAbsolutePath());
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p.init();
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ProjectHelper helper = ProjectHelper.getProjectHelper();
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p.addReference("ant.projectHelper", helper);
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helper.parse(p, buildFile);
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p.executeTarget(p.getDefaultTarget());
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sb.append("<br/>");
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sb.append(listener.getOutput());
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// Print some output: goes to your special stream
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//System.out.println("Foofoofoo!");
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// Put things back
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System.out.flush();
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System.err.flush();
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System.setOut(old);
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System.setErr(err);
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// Show what happened
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//System.out.println("Here: " + baos.toString());
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sb.append("<br/>");
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sb.append(baos.toString());
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return sb.toString();
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}
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/**
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* Annahme: relPath zeigt auf einen Ordner, in dem ein build-Ordner die
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* fertigen Klassen und ein web-Ordner die Struktur mit WEB-INF
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* enthaelt.
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*
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* @param relPath der relative Pfad, der auf den App-Ordner verweist
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* @return
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*/
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public String buildApp(String relPath) {
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String result = "ok";
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try {
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File targetDir = getTargetDir(relPath); // App-Ordner
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File classesDir = new File(targetDir, "web/WEB-INF/classes");
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if(classesDir.exists()) {
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FileUtils.deleteDirectory(classesDir);
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}
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classesDir.mkdirs();
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File buildDir = new File(targetDir, "build/");
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File[] files = buildDir.listFiles();
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for(int i = 0; i < files.length; i++) {
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if(files[i].isDirectory()) {
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FileUtils.copyDirectoryToDirectory(files[i], classesDir);
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} else {
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FileUtils.copyFileToDirectory(files[i], classesDir);
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}
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}
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} catch(Exception ex) {
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logger.log(Level.SEVERE, ex.getLocalizedMessage(), ex);
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}
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return result;
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}
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public List<CompilerIssue> compileAll(String relPath) {
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logger.fine(relPath);
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List<CompilerIssue> compilerIssues = new ArrayList();
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try {
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File targetDir = getTargetDir(relPath);
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ArrayList<File> files = new ArrayList();
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collectFiles(files, targetDir, new JavaFileFilter());
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JavaCompiler compiler = ToolProvider.getSystemJavaCompiler();
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DiagnosticCollector<JavaFileObject> diagnostics = new DiagnosticCollector();
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StandardJavaFileManager fileManager = compiler.getStandardFileManager(diagnostics, null, null);
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Iterable<? extends JavaFileObject> compilationUnits = fileManager.getJavaFileObjectsFromFiles(files);
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final Iterable<String> options = buildOptions(targetDir);
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compiler.getTask(null, null, diagnostics, options, null, compilationUnits).call();
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fileManager.close();
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collectResults(diagnostics, compilerIssues, relPath);
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} catch(Exception ex) {
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logger.log(Level.SEVERE, ex.getLocalizedMessage(), ex);
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}
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return compilerIssues;
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}
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private void collectResults(DiagnosticCollector<JavaFileObject> diagnostics, List<CompilerIssue> compilerIssues, String relPath) {
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List compileResults = diagnostics.getDiagnostics();
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Iterator i = compileResults.iterator();
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while (i.hasNext()) {
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Object o = i.next();
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Diagnostic<? extends JavaFileObject> err;
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if (o instanceof Diagnostic) {
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err = (Diagnostic) o;
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CompilerIssue issue = new CompilerIssue();
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issue.setKind(err.getKind().name());
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issue.setLineNumber(err.getLineNumber());
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issue.setMessage(err.getMessage(Locale.GERMANY));
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String srcName = err.getSource().getName().replace("\\", "/");
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String cleanRelPath = relPath.replace(HOME_DIR_NAME + "/", "").replace(PUB_DIR_NAME + "/", "");
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int pos = srcName.indexOf(cleanRelPath);
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String className = srcName.substring(pos + cleanRelPath.length());
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issue.setSourceName(className.replace("/", ".").substring(1));
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//issue.setSourceName(srcName + "\r\n" + relPath);
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compilerIssues.add(issue);
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}
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}
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}
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private void collectFiles(ArrayList<File> files, File dir, FileFilter filter) {
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File[] dirFiles = dir.listFiles(filter);
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for(int i = 0; i < dirFiles.length; i++) {
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if(dirFiles[i].isDirectory()) {
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logger.fine("drill down to " + dirFiles[i].getAbsolutePath());
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collectFiles(files, dirFiles[i], filter);
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} else {
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logger.fine("add " + dirFiles[i].getAbsolutePath());
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files.add(dirFiles[i]);
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}
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}
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}
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public class JavaFileFilter implements FileFilter {
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@Override
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public boolean accept(File pathname) {
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boolean doAccept = false;
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if(pathname.getName().endsWith(".java") || pathname.isDirectory()) {
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doAccept = true;
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}
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return doAccept;
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}
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}
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public class JarFileFilter implements FileFilter {
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@Override
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public boolean accept(File pathname) {
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boolean doAccept = false;
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if(pathname.getName().endsWith(".jar")) {
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doAccept = true;
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}
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return doAccept;
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}
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}
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/**
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*
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* @param relPath
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* @param fileNames
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* @param mode 0 = test, 1 = build
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* @return
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* @throws IOException
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*/
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public List<CompilerIssue> compile(String relPath, List fileNames, String mode) throws IOException {
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File targetDir = getTargetDir(relPath);
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ArrayList<File> files = new ArrayList();
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for(int i=0; i < fileNames.size(); i++) {
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Object o = fileNames.get(i);
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if(o instanceof ArrayList) {
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ArrayList al = (ArrayList) o;
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logger.fine(al.get(0).toString());
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File targetFile = new File(targetDir, al.get(0).toString());
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logger.fine(targetFile.getAbsolutePath());
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files.add(targetFile);
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}
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}
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JavaCompiler compiler = ToolProvider.getSystemJavaCompiler();
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DiagnosticCollector<JavaFileObject> diagnostics = new DiagnosticCollector();
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StandardJavaFileManager fileManager = compiler.getStandardFileManager(diagnostics, null, null);
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Iterable<? extends JavaFileObject> compilationUnits1 = fileManager.getJavaFileObjectsFromFiles(files);
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final Iterable<String> options = buildOptions(targetDir);
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compiler.getTask(null, fileManager, diagnostics, options, null, compilationUnits1).call();
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fileManager.close();
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List<CompilerIssue> compilerIssues = new ArrayList();
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collectResults(diagnostics, compilerIssues, relPath);
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return compilerIssues;
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}
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private final Iterable<String> buildOptions(File targetDir) {
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String cbase = getCatalinaBase(getServletContext());
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File lib = new File(cbase, "lib");
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String cp = "";
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cp = buildCPFromDir(cp, lib);
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logger.fine(lib.getAbsolutePath());
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logger.fine(cp);
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/*
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wegen dieser Funktion MUSS alles in 'src' liegen
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*/
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File srcDir = targetDir;
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while(!srcDir.getName().endsWith("src")) {
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srcDir = srcDir.getParentFile();
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}
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File appDir = srcDir.getParentFile();
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File appLibDir = new File(appDir, "web/WEB-INF/lib");
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cp = buildCPFromDir(cp, appLibDir);
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logger.fine(cp);
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/*
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ausgehend von src eins hoeher, dann nach build
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*/
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File buildDir = new File(appDir, "build");
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final Iterable<String> options = Arrays.asList(new String[]{"-Xlint",
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"-cp", cp,
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"-d", buildDir.getAbsolutePath()
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});
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try {
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FileUtils.deleteDirectory(buildDir);
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buildDir.mkdir();
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} catch (IOException ex) {
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logger.log(Level.SEVERE, ex.getLocalizedMessage(), ex);
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}
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return options;
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}
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/*
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-classpath $JLIB/jettison-1.3.3.jar:$JLIB/xstream-1.4.7.jar
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*/
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private String buildCPFromDir(String cp, File dir) {
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StringBuffer buf = new StringBuffer(cp);
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File[] files = dir.listFiles(new JarFileFilter());
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for(int i = 0; i < files.length; i++) {
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if(buf.length() > 0) {
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buf.append(File.pathSeparatorChar);
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}
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//buf.append("\"");
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buf.append(files[i].getAbsolutePath());
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//buf.append("\"");
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}
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return buf.toString();
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}
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}
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/*
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Beispeil fuer einen dynamischen Compiler-Aufruf
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'in memory'
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String className = "mypackage.MyClass";
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String javaCode = "package mypackage;\n" +
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"public class MyClass implements Runnable {\n" +
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" public void run() {\n" +
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" System.out.println("\"Hello World\");\n" +
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" }\n" +
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"}\n";
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Class aClass = CompilerUtils.CACHED_COMPILER.loadFromJava(className, javaCode);
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Runnable runner = (Runnable) aClass.newInstance();
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runner.run();
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*/
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/*
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CodeMirror Breakpoint bzw. Gutter Marker
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https://codemirror.net/demo/marker.html
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*/
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