org.eclipse.jdt.internal.compiler.batch.FileSystem Java Examples

private FileSystem createFileSystem(File file) {
	List<String> classpath = new ArrayList<String>();
	classpath.addAll(Arrays.asList(System.getProperty("sun.boot.class.path").split(File.pathSeparator)));
	for (Iterator<String> i = classpath.iterator(); i.hasNext();) {
		if (FileSystem.getClasspath(i.next(), "UTF-8", null) == null) {
			i.remove();
		}
	}
	classpath.add("bin");
	classpath.add("dist/lombok.jar");
	classpath.add("lib/test/commons-logging-commons-logging.jar");
	classpath.add("lib/test/org.slf4j-slf4j-api.jar");
	classpath.add("lib/test/org.slf4j-slf4j-ext.jar");
	classpath.add("lib/test/log4j-log4j.jar");
	classpath.add("lib/test/org.apache.logging.log4j-log4j-api.jar");
	classpath.add("lib/test/com.google.guava-guava.jar");
	classpath.add("lib/test/com.google.code.findbugs-findbugs.jar");
	return new FileSystem(classpath.toArray(new String[0]), new String[] {file.getAbsolutePath()}, "UTF-8");
}
 

@Override
public List<? extends Element> getEnclosedElements() {
	PackageBinding binding = (PackageBinding)_binding;
	LookupEnvironment environment = binding.environment;
	char[][][] typeNames = null;
	INameEnvironment nameEnvironment = binding.environment.nameEnvironment;
	if (nameEnvironment instanceof FileSystem) {
		typeNames = ((FileSystem) nameEnvironment).findTypeNames(binding.compoundName);
	}
	HashSet<Element> set = new HashSet<Element>(); 
	if (typeNames != null) {
		for (char[][] typeName : typeNames) {
			ReferenceBinding type = environment.getType(typeName);
			if (type != null && type.isValidBinding()) {
				set.add(_env.getFactory().newElement(type));
			}
		}
	}
	ArrayList<Element> list = new ArrayList<Element>(set.size());
	list.addAll(set);
	return Collections.unmodifiableList(list);
}
 

private Iterable<? extends File> getPathsFrom(String path) {
	ArrayList<FileSystem.Classpath> paths = new ArrayList<FileSystem.Classpath>();
	ArrayList<File> files = new ArrayList<File>();
	try {
		this.processPathEntries(Main.DEFAULT_SIZE_CLASSPATH, paths, path, this.charset.name(), false, false);
	} catch (IllegalArgumentException e) {
		return null;
	}
	for (FileSystem.Classpath classpath : paths) {
		files.add(new File(classpath.getPath()));
	}
	return files;
}
 

private Iterable<? extends File> getEndorsedDirsFrom(String path) {
	ArrayList<FileSystem.Classpath> paths = new ArrayList<FileSystem.Classpath>();
	ArrayList<File> files = new ArrayList<File>();
	try {
		this.processPathEntries(Main.DEFAULT_SIZE_CLASSPATH, paths, path, this.charset.name(), false, false);
	} catch (IllegalArgumentException e) {
		return null;
	}
	for (FileSystem.Classpath classpath : paths) {
		files.add(new File(classpath.getPath()));
	}
	return files;
}
 

private Iterable<? extends File> getExtdirsFrom(String path) {
	ArrayList<FileSystem.Classpath> paths = new ArrayList<FileSystem.Classpath>();
	ArrayList<File> files = new ArrayList<File>();
	try {
		this.processPathEntries(Main.DEFAULT_SIZE_CLASSPATH, paths, path, this.charset.name(), false, false);
	} catch (IllegalArgumentException e) {
		return null;
	}
	for (FileSystem.Classpath classpath : paths) {
		files.add(new File(classpath.getPath()));
	}
	return files;
}
 

private Iterable<? extends File> getPathsFrom(String path) {
	ArrayList<FileSystem.Classpath> paths = new ArrayList<FileSystem.Classpath>();
	ArrayList<File> files = new ArrayList<File>();
	try {
		this.processPathEntries(Main.DEFAULT_SIZE_CLASSPATH, paths, path, this.charset.name(), false, false);
	} catch (IllegalArgumentException e) {
		return null;
	}
	for (FileSystem.Classpath classpath : paths) {
		files.add(new File(classpath.getPath()));
	}
	return files;
}
 

private Iterable<? extends File> getEndorsedDirsFrom(String path) {
	ArrayList<FileSystem.Classpath> paths = new ArrayList<FileSystem.Classpath>();
	ArrayList<File> files = new ArrayList<File>();
	try {
		this.processPathEntries(Main.DEFAULT_SIZE_CLASSPATH, paths, path, this.charset.name(), false, false);
	} catch (IllegalArgumentException e) {
		return null;
	}
	for (FileSystem.Classpath classpath : paths) {
		files.add(new File(classpath.getPath()));
	}
	return files;
}
 

private Iterable<? extends File> getExtdirsFrom(String path) {
	ArrayList<FileSystem.Classpath> paths = new ArrayList<FileSystem.Classpath>();
	ArrayList<File> files = new ArrayList<File>();
	try {
		this.processPathEntries(Main.DEFAULT_SIZE_CLASSPATH, paths, path, this.charset.name(), false, false);
	} catch (IllegalArgumentException e) {
		return null;
	}
	for (FileSystem.Classpath classpath : paths) {
		files.add(new File(classpath.getPath()));
	}
	return files;
}
 

/** Parse the given source units and class path and store it into the given output map */
public static INameEnvironment parse(
        CompilerOptions options,
        @NonNull List<ICompilationUnit> sourceUnits,
        @NonNull List<String> classPath,
        @NonNull Map<ICompilationUnit, CompilationUnitDeclaration> outputMap,
        @Nullable LintClient client) {
    INameEnvironment environment = new FileSystem(
            classPath.toArray(new String[classPath.size()]), new String[0],
            options.defaultEncoding);
    IErrorHandlingPolicy policy = DefaultErrorHandlingPolicies.proceedWithAllProblems();
    IProblemFactory problemFactory = new DefaultProblemFactory(Locale.getDefault());
    ICompilerRequestor requestor = new ICompilerRequestor() {
        @Override
        public void acceptResult(CompilationResult result) {
            // Not used; we need the corresponding CompilationUnitDeclaration for the source
            // units (the AST parsed from source) which we don't get access to here, so we
            // instead subclass AST to get our hands on them.
        }
    };

    NonGeneratingCompiler compiler = new NonGeneratingCompiler(environment, policy, options,
            requestor, problemFactory, outputMap);
    try {
        compiler.compile(sourceUnits.toArray(new ICompilationUnit[sourceUnits.size()]));
    } catch (OutOfMemoryError e) {
        environment.cleanup();

        // Since we're running out of memory, if it's all still held we could potentially
        // fail attempting to log the failure. Actively get rid of the large ECJ data
        // structure references first so minimize the chance of that
        //noinspection UnusedAssignment
        compiler = null;
        //noinspection UnusedAssignment
        environment = null;
        //noinspection UnusedAssignment
        requestor = null;
        //noinspection UnusedAssignment
        problemFactory = null;
        //noinspection UnusedAssignment
        policy = null;

        String msg = "Ran out of memory analyzing .java sources with ECJ: Some lint checks "
                + "may not be accurate (missing type information from the compiler)";
        if (client != null) {
            // Don't log exception too; this isn't a compiler error per se where we
            // need to pin point the exact unlucky code that asked for memory when it
            // had already run out
            client.log(null, msg);
        } else {
            System.out.println(msg);
        }
    } catch (Throwable t) {
        if (client != null) {
            CompilationUnitDeclaration currentUnit = compiler.getCurrentUnit();
            if (currentUnit == null || currentUnit.getFileName() == null) {
                client.log(t, "ECJ compiler crashed");
            } else {
                client.log(t, "ECJ compiler crashed processing %1$s",
                        new String(currentUnit.getFileName()));
            }
        } else {
            t.printStackTrace();
        }

        environment.cleanup();
        environment = null;
    }

    return environment;
}
 

@SuppressWarnings({"rawtypes", "unchecked"})
protected void addNewEntry(ArrayList paths, String currentClasspathName,
		ArrayList currentRuleSpecs, String customEncoding,
		String destPath, boolean isSourceOnly,
		boolean rejectDestinationPathOnJars) {

	int rulesSpecsSize = currentRuleSpecs.size();
	AccessRuleSet accessRuleSet = null;
	if (rulesSpecsSize != 0) {
		AccessRule[] accessRules = new AccessRule[currentRuleSpecs.size()];
		boolean rulesOK = true;
		Iterator i = currentRuleSpecs.iterator();
		int j = 0;
		while (i.hasNext()) {
			String ruleSpec = (String) i.next();
			char key = ruleSpec.charAt(0);
			String pattern = ruleSpec.substring(1);
			if (pattern.length() > 0) {
				switch (key) {
					case '+':
						accessRules[j++] = new AccessRule(pattern
								.toCharArray(), 0);
						break;
					case '~':
						accessRules[j++] = new AccessRule(pattern
								.toCharArray(),
								IProblem.DiscouragedReference);
						break;
					case '-':
						accessRules[j++] = new AccessRule(pattern
								.toCharArray(),
								IProblem.ForbiddenReference);
						break;
					case '?':
						accessRules[j++] = new AccessRule(pattern
								.toCharArray(),
								IProblem.ForbiddenReference, true/*keep looking for accessible type*/);
						break;
					default:
						rulesOK = false;
				}
			} else {
				rulesOK = false;
			}
		}
		if (rulesOK) {
    		accessRuleSet = new AccessRuleSet(accessRules, AccessRestriction.COMMAND_LINE, currentClasspathName);
		} else {
			return;
		}
	}
	if (Main.NONE.equals(destPath)) {
		destPath = Main.NONE; // keep == comparison valid
	}
	if (rejectDestinationPathOnJars && destPath != null &&
			(currentClasspathName.endsWith(".jar") || //$NON-NLS-1$
				currentClasspathName.endsWith(".zip"))) { //$NON-NLS-1$
		throw new IllegalArgumentException(
				this.bind("configure.unexpectedDestinationPathEntryFile", //$NON-NLS-1$
							currentClasspathName));
		}
	FileSystem.Classpath currentClasspath = FileSystem.getClasspath(
			currentClasspathName,
			customEncoding,
			isSourceOnly,
			accessRuleSet,
			destPath);
	if (currentClasspath != null) {
		paths.add(currentClasspath);
	}
}
 

@SuppressWarnings({"rawtypes", "unchecked"})
protected void addNewEntry(ArrayList paths, String currentClasspathName,
		ArrayList currentRuleSpecs, String customEncoding,
		String destPath, boolean isSourceOnly,
		boolean rejectDestinationPathOnJars) {

	int rulesSpecsSize = currentRuleSpecs.size();
	AccessRuleSet accessRuleSet = null;
	if (rulesSpecsSize != 0) {
		AccessRule[] accessRules = new AccessRule[currentRuleSpecs.size()];
		boolean rulesOK = true;
		Iterator i = currentRuleSpecs.iterator();
		int j = 0;
		while (i.hasNext()) {
			String ruleSpec = (String) i.next();
			char key = ruleSpec.charAt(0);
			String pattern = ruleSpec.substring(1);
			if (pattern.length() > 0) {
				switch (key) {
					case '+':
						accessRules[j++] = new AccessRule(pattern
								.toCharArray(), 0);
						break;
					case '~':
						accessRules[j++] = new AccessRule(pattern
								.toCharArray(),
								IProblem.DiscouragedReference);
						break;
					case '-':
						accessRules[j++] = new AccessRule(pattern
								.toCharArray(),
								IProblem.ForbiddenReference);
						break;
					case '?':
						accessRules[j++] = new AccessRule(pattern
								.toCharArray(),
								IProblem.ForbiddenReference, true/*keep looking for accessible type*/);
						break;
					default:
						rulesOK = false;
				}
			} else {
				rulesOK = false;
			}
		}
		if (rulesOK) {
    		accessRuleSet = new AccessRuleSet(accessRules, AccessRestriction.COMMAND_LINE, currentClasspathName);
		} else {
			return;
		}
	}
	if (Main.NONE.equals(destPath)) {
		destPath = Main.NONE; // keep == comparison valid
	}
	if (rejectDestinationPathOnJars && destPath != null &&
			(currentClasspathName.endsWith(".jar") || //$NON-NLS-1$
				currentClasspathName.endsWith(".zip"))) { //$NON-NLS-1$
		throw new IllegalArgumentException(
				this.bind("configure.unexpectedDestinationPathEntryFile", //$NON-NLS-1$
							currentClasspathName));
		}
	FileSystem.Classpath currentClasspath = FileSystem.getClasspath(
			currentClasspathName,
			customEncoding,
			isSourceOnly,
			accessRuleSet,
			destPath);
	if (currentClasspath != null) {
		paths.add(currentClasspath);
	}
}
 

public static void collectRunningVMBootclasspath(List bootclasspaths) {
	/* no bootclasspath specified
	 * we can try to retrieve the default librairies of the VM used to run
	 * the batch compiler
	 */
	String javaversion = System.getProperty("java.version");//$NON-NLS-1$
	if (javaversion != null && javaversion.equalsIgnoreCase("1.1.8")) { //$NON-NLS-1$
		throw new IllegalStateException();
	}

	/*
	 * Handle >= JDK 1.2.2 settings: retrieve the bootclasspath
	 */
	// check bootclasspath properties for Sun, JRockit and Harmony VMs
	String bootclasspathProperty = System.getProperty("sun.boot.class.path"); //$NON-NLS-1$
	if ((bootclasspathProperty == null) || (bootclasspathProperty.length() == 0)) {
		// IBM J9 VMs
		bootclasspathProperty = System.getProperty("vm.boot.class.path"); //$NON-NLS-1$
		if ((bootclasspathProperty == null) || (bootclasspathProperty.length() == 0)) {
			// Harmony using IBM VME
			bootclasspathProperty = System.getProperty("org.apache.harmony.boot.class.path"); //$NON-NLS-1$
		}
	}
	if ((bootclasspathProperty != null) && (bootclasspathProperty.length() != 0)) {
		StringTokenizer tokenizer = new StringTokenizer(bootclasspathProperty, File.pathSeparator);
		String token;
		while (tokenizer.hasMoreTokens()) {
			token = tokenizer.nextToken();
			FileSystem.Classpath currentClasspath = FileSystem.getClasspath(token, null, null);
			if (currentClasspath != null) {
				bootclasspaths.add(currentClasspath);
			}
		}
	} else {
		// try to get all jars inside the lib folder of the java home
		final File javaHome = getJavaHome();
		if (javaHome != null) {
			File[] directoriesToCheck = null;
			if (System.getProperty("os.name").startsWith("Mac")) {//$NON-NLS-1$//$NON-NLS-2$
				directoriesToCheck = new File[] {
					new File(javaHome, "../Classes"), //$NON-NLS-1$
				};
			} else {
				// fall back to try to retrieve them out of the lib directory
				directoriesToCheck = new File[] {
					new File(javaHome, "lib") //$NON-NLS-1$
				};
			}
			File[][] systemLibrariesJars = Main.getLibrariesFiles(directoriesToCheck);
			if (systemLibrariesJars != null) {
				for (int i = 0, max = systemLibrariesJars.length; i < max; i++) {
					File[] current = systemLibrariesJars[i];
					if (current != null) {
						for (int j = 0, max2 = current.length; j < max2; j++) {
							FileSystem.Classpath classpath =
								FileSystem.getClasspath(current[j].getAbsolutePath(),
									null, false, null, null);
							if (classpath != null) {
								bootclasspaths.add(classpath);
							}
						}
					}
				}
			}
		}
	}
}