jdk8-mips64-public/langtools: test/tools/javac/lib/ToolBox.java@2eb010b6cb22 (annotated)

test/tools/javac/lib/ToolBox.java@2eb010b6cb22 (annotated)

test/tools/javac/lib/ToolBox.java

Thu, 31 Aug 2017 15:17:03 +0800

author: aoqi
date: Thu, 31 Aug 2017 15:17:03 +0800
changeset 2525: 2eb010b6cb22
parent 1637: 2e21ecd7a5ad
parent 0: 959103a6100f
permissions: -rw-r--r--

merge

 /*
  * Copyright (c) 2013, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
  * under the terms of the GNU General Public License version 2 only, as
  * published by the Free Software Foundation.
  *
  * This code 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
  * version 2 for more details (a copy is included in the LICENSE file that
  * accompanied this code).
  *
  * You should have received a copy of the GNU General Public License version
  * 2 along with this work; if not, write to the Free Software Foundation,
  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  *
  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  * or visit www.oracle.com if you need additional information or have any
  * questions.
  */
 import java.io.BufferedReader;
 import java.io.File;
 import java.io.FileNotFoundException;
 import java.io.FileWriter;
 import java.io.IOException;
 import java.io.InputStreamReader;
 import java.io.PrintWriter;
 import java.io.StringWriter;
 import java.net.URI;
 import java.nio.charset.Charset;
 import java.nio.file.Files;
 import java.nio.file.Path;
 import java.nio.file.Paths;
 import java.nio.file.StandardOpenOption;
 import java.util.ArrayList;
 import java.util.Arrays;
 import java.util.Collection;
 import java.util.Collections;
 import java.util.EnumSet;
 import java.util.List;
 import java.util.Map;
 import java.util.Set;
 import java.util.regex.Matcher;
 import java.util.regex.Pattern;
 import javax.tools.JavaCompiler;
 import javax.tools.JavaFileObject;
 import javax.tools.SimpleJavaFileObject;
 import javax.tools.ToolProvider;
 import com.sun.source.util.JavacTask;
 import com.sun.tools.javac.api.JavacTaskImpl;
 import sun.tools.jar.Main;
 import static java.nio.file.StandardCopyOption.*;
 /**
  * Toolbox for jtreg tests.
  */
 public class ToolBox {
     public static final String lineSeparator = System.getProperty("line.separator");
     public static final String jdkUnderTest = System.getProperty("test.jdk");
     public static final Path javaBinary = Paths.get(jdkUnderTest, "bin", "java");
     public static final Path javacBinary = Paths.get(jdkUnderTest, "bin", "javac");
     public static final List<String> testToolVMOpts;
     public static final List<String> testVMOpts;
     private static final Charset defaultCharset = Charset.defaultCharset();
     static final JavaCompiler comp = ToolProvider.getSystemJavaCompiler();
     static {
         String sysProp = System.getProperty("test.tool.vm.opts");
         if (sysProp != null && sysProp.length() > 0) {
             testToolVMOpts = Arrays.asList(sysProp.split("\\s+"));
         } else {
             testToolVMOpts = Collections.<String>emptyList();
         }
         sysProp = System.getProperty("test.vm.opts");
         if (sysProp != null && sysProp.length() > 0) {
             testVMOpts = Arrays.asList(sysProp.split("\\s+"));
         } else {
             testVMOpts = Collections.<String>emptyList();
         }
     }
     /**
      * The expected result of command-like method execution.
      */
     public enum Expect {SUCCESS, FAIL}
     enum AcceptedParams {
         EXPECT,
         SOURCES,
         OPTIONS,
         STD_OUTPUT,
         ERR_OUTPUT,
         EXTRA_ENV,
     }
     enum OutputKind {STD, ERR}
     /**
      * Helper class to abstract the processing of command's output.
      */
     static abstract class WriterHelper {
         OutputKind kind;
         public abstract void pipeOutput(ProcessBuilder pb);
         public abstract void readFromStream(Process p) throws IOException;
         public abstract void addAll(Collection<? extends String> c) throws IOException;
     }
     /**
      * Helper class for redirecting command's output to a file.
      */
     static class FileWriterHelper extends WriterHelper {
         File file;
         FileWriterHelper(File file, OutputKind kind) {
             this.file = file;
             this.kind = kind;
         }
         @Override
         public void pipeOutput(ProcessBuilder pb) {
             if (file != null) {
                 switch (kind) {
                     case STD:
                         pb.redirectInput(file);
                         break;
                     case ERR:
                         pb.redirectError(file);
                         break;
                 }
             }
         }
         @Override
         public void readFromStream(Process p) throws IOException {}
         @Override
         public void addAll(Collection<? extends String> c) throws IOException {
             if (file.exists())
                 Files.write(file.toPath(), c, defaultCharset,
                         StandardOpenOption.WRITE, StandardOpenOption.APPEND);
             else
                 Files.write(file.toPath(), c, defaultCharset);
         }
     }
     /**
      * Helper class for redirecting command's output to a String list.
      */
     static class ListWriterHelper extends WriterHelper {
         List<String> list;
         public ListWriterHelper(List<String> list, OutputKind kind) {
             this.kind = kind;
             this.list = list;
         }
         @Override
         public void pipeOutput(ProcessBuilder pb) {}
         @Override
         public void readFromStream(Process p) throws IOException {
             BufferedReader br = null;
             switch (kind) {
                 case STD:
                     br = new BufferedReader(new InputStreamReader(p.getInputStream()));
                     break;
                 case ERR:
                     br = new BufferedReader(new InputStreamReader(p.getErrorStream()));
                     break;
             }
             String line;
             while ((line = br.readLine()) != null) {
                 list.add(line);
             }
         }
         public void addAll(Collection<? extends String> c) {
             list.addAll(c);
         }
     }
     /**
      * Simple factory class for creating a WriterHelper instance.
      */
     static class WriterHelperFactory {
         static WriterHelper make(File file, OutputKind kind) {
             return new FileWriterHelper(file, kind);
         }
         static WriterHelper make(List<String> list, OutputKind kind) {
             return new ListWriterHelper(list, kind);
         }
     }
     /**
      * A generic class for holding command's arguments.
      */
     public static abstract class GenericArgs <T extends GenericArgs> {
         protected static List<Set<AcceptedParams>> minAcceptedParams;
         protected Set<AcceptedParams> currentParams =
                 EnumSet.<AcceptedParams>noneOf(AcceptedParams.class);
         protected Expect whatToExpect;
         protected WriterHelper stdOutput;
         protected WriterHelper errOutput;
         protected List<String> args = new ArrayList<>();
         protected String[] argsArr;
         protected GenericArgs() {
             set(Expect.SUCCESS);
         }
         public T set(Expect whatToExpt) {
             currentParams.add(AcceptedParams.EXPECT);
             this.whatToExpect = whatToExpt;
             return (T)this;
         }
         public T setStdOutput(List<String> stdOutput) {
             currentParams.add(AcceptedParams.STD_OUTPUT);
             this.stdOutput = WriterHelperFactory.make(stdOutput, OutputKind.STD);
             return (T)this;
         }
         public T setStdOutput(File output) {
             currentParams.add(AcceptedParams.STD_OUTPUT);
             this.stdOutput = WriterHelperFactory.make(output, OutputKind.STD);
             return (T)this;
         }
         public T setErrOutput(List<String> errOutput) {
             currentParams.add(AcceptedParams.ERR_OUTPUT);
             this.errOutput = WriterHelperFactory.make(errOutput, OutputKind.ERR);
             return (T)this;
         }
         public T setErrOutput(File errOutput) {
             currentParams.add(AcceptedParams.ERR_OUTPUT);
             this.errOutput = WriterHelperFactory.make(errOutput, OutputKind.ERR);
             return (T)this;
         }
         public T setAllArgs(String... args) {
             currentParams.add(AcceptedParams.OPTIONS);
             this.argsArr = args;
             return (T) this;
         }
         public T appendArgs(String... args) {
             appendArgs(Arrays.asList(args));
             return (T)this;
         }
         public T appendArgs(Path... args) {
             if (args != null) {
                 List<String> list = new ArrayList<>();
                 for (int i = 0; i < args.length; i++) {
                     if (args[i] != null) {
                         list.add(args[i].toString());
                     }
                 }
                 appendArgs(list);
             }
             return (T)this;
         }
         public T appendArgs(List<String> args) {
             if (args != null && args.size() > 0) {
                 currentParams.add(AcceptedParams.OPTIONS);
                 for (int i = 0; i < args.size(); i++) {
                     if (args.get(i) != null) {
                         this.args.add(args.get(i));
                     }
                 }
             }
             return (T)this;
         }
         public T setOptions(List<String> options) {
             currentParams.add(AcceptedParams.OPTIONS);
             this.args = options;
             return (T)this;
         }
         public T setOptions(String... options) {
             currentParams.add(AcceptedParams.OPTIONS);
             this.args = Arrays.asList(options);
             return (T)this;
         }
         public boolean hasMinParams() {
             for (Set<AcceptedParams> minSet : minAcceptedParams) {
                 if (currentParams.containsAll(minSet)) {
                     return true;
                 }
             }
             return false;
         }
     }
     /**
      * A more specific class for holding javac-like command's arguments.
      */
     public static class JavaToolArgs extends GenericArgs<JavaToolArgs> {
         static {
             minAcceptedParams = new ArrayList<>();
             minAcceptedParams.add(EnumSet.<AcceptedParams>of(
                     AcceptedParams.EXPECT, AcceptedParams.OPTIONS));
             minAcceptedParams.add(EnumSet.<AcceptedParams>of(
                     AcceptedParams.EXPECT, AcceptedParams.SOURCES));
         }
         protected List<? extends JavaFileObject> sources;
         public JavaToolArgs() {
             super();
         }
         public JavaToolArgs(Expect whatToExpt) {
             super.set(whatToExpt);
         }
         public JavaToolArgs setSources(List<? extends JavaFileObject> sources) {
             currentParams.add(AcceptedParams.SOURCES);
             this.sources = sources;
             return this;
         }
         public JavaToolArgs setSources(JavaSource... sources) {
             return setSources(Arrays.asList(sources));
         }
         public JavaToolArgs setSources(String... sources) {
             List<JavaSource> javaSrcs = new ArrayList<>();
             for (String source : sources) {
                 javaSrcs.add(new JavaSource(source));
             }
             return setSources(javaSrcs);
         }
     }
     /**
      * A more specific class for holding any command's arguments.
      */
     public static class AnyToolArgs extends GenericArgs<AnyToolArgs> {
         static {
             minAcceptedParams = new ArrayList<>();
             minAcceptedParams.add(EnumSet.<AcceptedParams>of(
                     AcceptedParams.EXPECT, AcceptedParams.OPTIONS));
         }
         Map<String, String> extraEnv;
         public AnyToolArgs() {
             super();
         }
         public AnyToolArgs(Expect whatToExpt) {
             set(whatToExpt);
         }
         public AnyToolArgs set(Map<String, String> extraEnv) {
             currentParams.add(AcceptedParams.EXTRA_ENV);
             this.extraEnv = extraEnv;
             return this;
         }
     }
     /**
      * Custom exception for bad command execution.
      */
     public static class CommandExecutionException extends Exception {
         CommandExecutionException(List<String> command, Expect whatToExpt) {
             super(createMessage(command, whatToExpt));
         }
         CommandExecutionException(Expect whatToExpt, String... command) {
             this(Arrays.asList(command), whatToExpt);
         }
         private static String createMessage(List<String> command, Expect whatToExpt) {
             StringBuilder sb = new StringBuilder().append("Command : ");
             sb.append(command.toString()).append(lineSeparator);
             switch (whatToExpt) {
                 case SUCCESS:
                     sb.append("    has unexpectedly failed");
                     break;
                 case FAIL:
                     sb.append("    has been unexpectedly successful");
                     break;
             }
             return sb.toString();
         }
     }
     /**
      * Custom exception for not equal resources.
      */
     public static class ResourcesNotEqualException extends Exception {
         public ResourcesNotEqualException(List<String> res1, List<String> res2) {
             super(createMessage(res1, res2));
         }
         public ResourcesNotEqualException(String line1, String line2) {
             super(createMessage(line1, line2));
         }
         public ResourcesNotEqualException(Path path1, Path path2) {
             super(createMessage(path1, path2));
         }
         private static String createMessage(Path path1, Path path2) {
             return new StringBuilder()
                     .append("The resources provided for comparison in paths \n")
                     .append(path1.toString()).append(" and \n")
                     .append(path2.toString()).append("are different").toString();
         }
         private static String createMessage(String line1, String line2) {
             return new StringBuilder()
                     .append("The resources provided for comparison are different at lines: \n")
                     .append(line1).append(" and \n")
                     .append(line2).toString();
         }
         private static String createMessage(List<String> res1, List<String> res2) {
             return new StringBuilder()
                     .append("The resources provided for comparison are different: \n")
                     .append("Resource 1 is: ").append(res1).append("\n and \n")
                     .append("Resource 2 is: ").append(res2).append("\n").toString();
         }
     }
     /**
      * A javac compiler caller method.
      */
     public static int javac(JavaToolArgs params)
             throws CommandExecutionException, IOException {
         if (params.hasMinParams()) {
             if (params.argsArr != null) {
                 return genericJavaCMD(JavaCMD.JAVAC, params);
             } else {
                 return genericJavaCMD(JavaCMD.JAVAC_API, params);
             }
         }
         throw new AssertionError("javac command has been invoked with less parameters than needed");
     }
     /**
      * A javap calling method.
      */
     public static String javap(JavaToolArgs params)
             throws CommandExecutionException, IOException {
         if (params.hasMinParams()) {
             List<String> list = new ArrayList<>();
             params.setErrOutput(list);
             genericJavaCMD(JavaCMD.JAVAP, params);
             return listToString(list);
         }
         throw new AssertionError("javap command has been invoked with less parameters than needed");
     }
     /**
      * A javah calling method.
      */
     public static int javah(JavaToolArgs params)
             throws CommandExecutionException, IOException {
         if (params.hasMinParams()) {
             return genericJavaCMD(JavaCMD.JAVAH, params);
         }
         throw new AssertionError("javah command has been invoked with less parameters than needed");
     }
     /**
      * A enum class for langtools commands.
      */
     enum JavaCMD {
         JAVAC {
             @Override
             int run(JavaToolArgs params, PrintWriter pw) {
                 return com.sun.tools.javac.Main.compile(params.argsArr, pw);
             }
         },
         JAVAC_API {
             @Override
             int run(JavaToolArgs params, PrintWriter pw) {
                 JavacTask ct = (JavacTask)comp.getTask(pw, null, null,
                         params.args, null, params.sources);
                 return ((JavacTaskImpl)ct).doCall().exitCode;
             }
             @Override
             String getName() {
                 return "javac";
             }
             @Override
             List<String> getExceptionMsgContent(JavaToolArgs params) {
                 List<String> result = super.getExceptionMsgContent(params);
                 for (JavaFileObject source : params.sources) {
                     if (source instanceof JavaSource) {
                         result.add(((JavaSource)source).name);
                     }
                 }
                 return result;
             }
         },
         JAVAH {
             @Override
             int run(JavaToolArgs params, PrintWriter pw) {
                 return com.sun.tools.javah.Main.run(params.argsArr, pw);
             }
         },
         JAVAP {
             @Override
             int run(JavaToolArgs params, PrintWriter pw) {
                 return com.sun.tools.javap.Main.run(params.argsArr, pw);
             }
         };
         abstract int run(JavaToolArgs params, PrintWriter pw);
         String getName() {
             return this.name().toLowerCase();
         }
         List<String> getExceptionMsgContent(JavaToolArgs params) {
             List<String> result = new ArrayList<>();
             result.add(getName());
             result.addAll(params.argsArr != null ?
                     Arrays.asList(params.argsArr) :
                     params.args);
             return result;
         }
     }
     /**
      * A helper method for executing langtools commands.
      */
     private static int genericJavaCMD(
             JavaCMD cmd,
             JavaToolArgs params)
             throws CommandExecutionException, IOException {
         int rc = 0;
         StringWriter sw = null;
         try (PrintWriter pw = (params.errOutput == null) ?
                 null : new PrintWriter(sw = new StringWriter())) {
             rc = cmd.run(params, pw);
         }
         String out = (sw == null) ? null : sw.toString();
         if (params.errOutput != null && (out != null) && !out.isEmpty()) {
             params.errOutput.addAll(splitLines(out, lineSeparator));
         }
         if ( (rc == 0 && params.whatToExpect == Expect.SUCCESS) ||
              (rc != 0 && params.whatToExpect == Expect.FAIL) ) {
             return rc;
         }
         throw new CommandExecutionException(cmd.getExceptionMsgContent(params),
                 params.whatToExpect);
     }
     /**
      * A jar calling method.
      */
     public static boolean jar(String... params) throws CommandExecutionException {
         Main jarGenerator = new Main(System.out, System.err, "jar");
         boolean result = jarGenerator.run(params);
         if (!result) {
             List<String> command = new ArrayList<>();
             command.add("jar");
             command.addAll(Arrays.asList(params));
             throw new CommandExecutionException(command, Expect.SUCCESS);
         }
         return result;
     }
     /**
      * A general command calling method.
      */
     public static int executeCommand(AnyToolArgs params)
             throws CommandExecutionException, IOException, InterruptedException {
         if (params.hasMinParams()) {
             List<String> cmd = (params.args != null) ?
                     params.args :
                     Arrays.asList(params.argsArr);
             return executeCommand(cmd, params.extraEnv, params.stdOutput,
                     params.errOutput, params.whatToExpect);
         }
         throw new AssertionError("command has been invoked with less parameters than needed");
     }
     /**
      * A helper method for calling a general command.
      */
     private static int executeCommand(
             List<String> command,
             Map<String, String> extraEnv,
             WriterHelper stdOutput,
             WriterHelper errOutput,
             Expect whatToExpt)
             throws IOException, InterruptedException, CommandExecutionException {
         ProcessBuilder pb = new ProcessBuilder(command);
         if (stdOutput != null) stdOutput.pipeOutput(pb);
         if (errOutput != null) errOutput.pipeOutput(pb);
         if (extraEnv != null) {
             pb.environment().putAll(extraEnv);
         }
         Process p = pb.start();
         if (stdOutput != null) stdOutput.readFromStream(p);
         if (errOutput != null) errOutput.readFromStream(p);
         int result = p.waitFor();
         if ( (result == 0 && whatToExpt == Expect.SUCCESS) ||
              (result != 0 && whatToExpt == Expect.FAIL) ) {
             return result;
         }
         throw new CommandExecutionException(command, whatToExpt);
     }
     /**
      * This set of methods can be used instead of diff when the only needed
      * result is the equality or inequality of the two given resources.
      *
      * A resource can be a file or a String list.
      */
     public static void compareLines(Path aPath, Path otherPath, String encoding)
             throws FileNotFoundException, IOException, ResourcesNotEqualException {
         compareLines(aPath, otherPath, encoding, false);
     }
     public static void compareLines(
             Path aPath, Path otherPath, String encoding, boolean trim)
             throws FileNotFoundException, IOException, ResourcesNotEqualException {
         Charset charset = encoding != null ?
                 Charset.forName(encoding) :
                 defaultCharset;
         List<String> list1 = Files.readAllLines(aPath, charset);
         List<String> list2 = Files.readAllLines(otherPath, charset);
         compareLines(list1, list2, trim);
     }
     public static void compareLines(Path path, List<String> strings, String encoding)
             throws FileNotFoundException, IOException, ResourcesNotEqualException {
         compareLines(path, strings, encoding, false);
     }
     public static void compareLines(Path path, List<String> strings,
             String encoding, boolean trim)
             throws FileNotFoundException, IOException, ResourcesNotEqualException {
         Charset charset = encoding != null ?
                 Charset.forName(encoding) :
                 defaultCharset;
         List<String> list = Files.readAllLines(path, charset);
         compareLines(list, strings, trim);
     }
     public static void compareLines(List<String> list1, List<String> list2)
             throws ResourcesNotEqualException {
         compareLines(list1, list2, false);
     }
     public static void compareLines(List<String> list1,
             List<String> list2, boolean trim) throws ResourcesNotEqualException {
         if ((list1 == list2) || (list1 == null && list2 == null)) return;
         if (list1.size() != list2.size())
             throw new ResourcesNotEqualException(list1, list2);
         int i = 0;
         int j = 0;
         while (i < list1.size() &&
                j < list2.size() &&
                equals(list1.get(i), list2.get(j), trim)) {
             i++; j++;
         }
         if (!(i == list1.size() && j == list2.size()))
             throw new ResourcesNotEqualException(list1, list2);
     }
     private static boolean equals(String s1, String s2, boolean trim) {
         return (trim ? s1.trim().equals(s2.trim()) : s1.equals(s2));
     }
     /**
      * A set of simple grep-like methods, looks for regExpr in text.
      * The content of text is split using the new line character as a pattern
      * and later the regExpr is seek in every split line. If a match is found,
      * the whole line is added to the result.
      */
     public static List<String> grep(String regExpr, String text, String sep) {
         return grep(regExpr, splitLines(text, sep));
     }
     public static List<String> grep(String regExpr, List<String> text) {
         List<String> result = new ArrayList<>();
         Pattern pattern = Pattern.compile(regExpr);
         for (String s : text) {
             if (pattern.matcher(s).find()) {
                 result.add(s);
             }
         }
         return result;
     }
     public static List<String> grep(String regExpr, File f)
             throws IOException {
         List<String> lines = Files.readAllLines(f.toPath(), defaultCharset);
         return grep(regExpr, lines);
     }
     /**
      * A touch-like method.
      */
     public static boolean touch(String fileName) {
         File file = new File(fileName);
         return touch(file);
     }
     public static boolean touch(File file) {
         if (file.exists()) {
             file.setLastModified(System.currentTimeMillis());
             return true;
         }
         return false;
     }
     public static void createJavaFile(File outFile) throws IOException {
         createJavaFile(outFile, null);
     }
     /**
      * A method for creating a valid but very simple java file.
      */
     public static void createJavaFile(File outFile, File superClass)
             throws IOException {
         String srcStr = "public class " + getSimpleName(outFile) + " ";
         if (superClass != null) {
             srcStr = srcStr.concat("extends " + getSimpleName(superClass) + " ");
         }
         srcStr = srcStr.concat("{}");
         try (PrintWriter ps = new PrintWriter(new FileWriter(outFile))) {
             ps.println(srcStr);
         }
     }
     /**
      * Creates a java file name given its source.
      * The file is created in the working directory, creating a directory
      * tree if there is a package declaration.
      */
     public static void createJavaFileFromSource(String source) throws IOException {
         createJavaFileFromSource(null, source);
     }
     /**
      * Creates a java file name given its source.
      * The file is created in the working directory, creating a directory
      * tree if there is a package declaration or the argument initialPath
      * has a valid path.
      *
      * e.i. if initialPath is foo/ and the source is:
      * package bar;
      *
      * public class bazz {}
      *
      * this method will create the file foo/bar/bazz.java in the working
      * directory.
      */
     public static void createJavaFileFromSource(Path initialPath,
             String source) throws IOException {
         String fileName = getJavaFileNameFromSource(source);
         String dirTree = getDirTreeFromSource(source);
         Path path = (dirTree != null) ?
                 Paths.get(dirTree, fileName) :
                 Paths.get(fileName);
         path = (initialPath != null) ?
                 initialPath.resolve(path):
                 path;
         writeFile(path, source);
     }
     static Pattern publicClassPattern =
             Pattern.compile("public\\s+(?:class|enum|interface){1}\\s+(\\w+)");
     static Pattern packageClassPattern =
             Pattern.compile("(?:class|enum|interface){1}\\s+(\\w+)");
     /**
      * Extracts the java file name from the class declaration.
      * This method is intended for simple files and uses regular expressions,
      * so comments matching the pattern can make the method fail.
      */
     private static String getJavaFileNameFromSource(String source) {
         String className = null;
         Matcher matcher = publicClassPattern.matcher(source);
         if (matcher.find()) {
             className = matcher.group(1) + ".java";
         } else {
             matcher = packageClassPattern.matcher(source);
             if (matcher.find()) {
                 className = matcher.group(1) + ".java";
             } else {
                 throw new AssertionError("Could not extract the java class " +
                         "name from the provided source");
             }
         }
         return className;
     }
     static Pattern packagePattern =
             Pattern.compile("package\\s+(((?:\\w+\\.)*)(?:\\w+))");
     /**
      * Extracts the path from the package declaration if present.
      * This method is intended for simple files and uses regular expressions,
      * so comments matching the pattern can make the method fail.
      */
     private static String getDirTreeFromSource(String source) {
         Matcher matcher = packagePattern.matcher(source);
         return matcher.find() ?
             matcher.group(1).replace(".", File.separator) :
             null;
     }
     /**
      * A method for creating a jar's manifest file with supplied data.
      */
     public static void mkManifestWithClassPath(String mainClass,
             String... classes) throws IOException {
         List <String> lines = new ArrayList<>();
         StringBuilder sb = new StringBuilder("Class-Path: ".length() +
                 classes[0].length()).append("Class-Path: ").append(classes[0]);
         for (int i = 1; i < classes.length; i++) {
             sb.append(" ").append(classes[i]);
         }
         lines.add(sb.toString());
         if (mainClass != null) {
             lines.add(new StringBuilder("Main-Class: ".length() +
                       mainClass.length())
                       .append("Main-Class: ")
                       .append(mainClass).toString());
         }
         Files.write(Paths.get("MANIFEST.MF"), lines, null);
     }
     /**
      * A utility method to obtain the file name.
      */
     static String getSimpleName(File inFile) {
         return inFile.toPath().getFileName().toString();
     }
     /**
      * A method to write to a file, the directory tree is created if needed.
      */
     public static File writeFile(Path path, String body) throws IOException {
         File result;
         if (path.getParent() != null) {
             Files.createDirectories(path.getParent());
         }
         try (FileWriter out = new FileWriter(result = path.toAbsolutePath().toFile())) {
             out.write(body);
         }
         return result;
     }
     public static File writeFile(String path, String body) throws IOException {
         return writeFile(Paths.get(path), body);
     }
     /**
      * A rm-like method, the file is deleted only if it exists.
      */
     public static void rm(Path path) throws Exception {
         Files.deleteIfExists(path);
     }
     public static void rm(String filename) throws Exception {
         rm(Paths.get(filename));
     }
     public static void rm(File f) throws Exception {
         rm(f.toPath());
     }
     /**
      * Copy source file to destination file.
      */
     public static void copyFile(File destfile, File srcfile)
         throws IOException {
         copyFile(destfile.toPath(), srcfile.toPath());
     }
     public static void copyFile(Path destPath, Path srcPath)
         throws IOException {
         Files.createDirectories(destPath);
         Files.copy(srcPath, destPath, REPLACE_EXISTING);
     }
     /**
      * Splits a String using the System's line separator character as splitting point.
      */
     public static List<String> splitLines(String lines, String sep) {
         return Arrays.asList(lines.split(sep));
     }
     /**
      * Converts a String list into one String by appending the System's line separator
      * character after each component.
      */
     private static String listToString(List<String> lines) {
         StringBuilder sb = new StringBuilder();
         for (String s : lines) {
             sb.append(s).append(lineSeparator);
         }
         return sb.toString();
     }
     /**
      * Returns true if the OS is a Windows version.
      */
     public static boolean isWindows() {
         String osName = System.getProperty("os.name");
         return osName.toUpperCase().startsWith("WINDOWS");
     }
     /**
      * Class representing an in-memory java source file. It is able to extract
      * the file name from simple source codes using regular expressions.
      */
     public static class JavaSource extends SimpleJavaFileObject {
         String source;
         String name;
         public JavaSource(String className, String source) {
             super(URI.create(className),
                     JavaFileObject.Kind.SOURCE);
             this.name = className;
             this.source = source;
         }
         public JavaSource(String source) {
             super(URI.create(getJavaFileNameFromSource(source)),
                     JavaFileObject.Kind.SOURCE);
             this.name = getJavaFileNameFromSource(source);
             this.source = source;
         }
         @Override
         public CharSequence getCharContent(boolean ignoreEncodingErrors) {
             return source;
         }
     }
 }

Mercurial > jdk8-mips64-public > langtools / annotate

test/tools/javac/lib/ToolBox.java@2eb010b6cb22 (annotated)

test/tools/javac/lib/ToolBox.java