| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You under the Apache License, Version 2.0 |
| * (the "License"); you may not use this file except in compliance with |
| * the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| package org.apache.commons.jci.compilers; |
| |
| import java.io.IOException; |
| import java.io.InputStream; |
| import java.io.OutputStream; |
| import java.io.Reader; |
| import java.io.Writer; |
| import java.net.URI; |
| import java.util.ArrayList; |
| import java.util.Collection; |
| import java.util.Iterator; |
| import java.util.List; |
| import java.util.ServiceLoader; |
| import java.util.Set; |
| |
| import javax.tools.Diagnostic; |
| import javax.tools.DiagnosticCollector; |
| import javax.tools.FileObject; |
| import javax.tools.JavaCompiler; |
| import javax.tools.JavaFileManager; |
| import javax.tools.JavaFileObject; |
| import javax.tools.SimpleJavaFileObject; |
| import javax.tools.ToolProvider; |
| import javax.tools.JavaCompiler.CompilationTask; |
| |
| import org.apache.commons.jci.problems.CompilationProblem; |
| import org.apache.commons.jci.readers.ResourceReader; |
| import org.apache.commons.jci.stores.ResourceStore; |
| import org.apache.commons.logging.Log; |
| import org.apache.commons.logging.LogFactory; |
| |
| public final class Jsr199JavaCompiler extends AbstractJavaCompiler { |
| |
| private final Log log = LogFactory.getLog(Jsr199JavaCompiler.class); |
| |
| private class CompilationUnit extends SimpleJavaFileObject { |
| final private ResourceReader reader; |
| final private String name; |
| |
| public CompilationUnit( final String pName, final ResourceReader pReader ) { |
| super(URI.create("reader:///" + pName), Kind.SOURCE); |
| reader = pReader; |
| name = pName; |
| } |
| |
| public boolean delete() { |
| log.debug("delete"); |
| return super.delete(); |
| } |
| |
| public CharSequence getCharContent(boolean encodingErrors) throws IOException { |
| log.debug("getCharContent of " + name); |
| byte[] content = reader.getBytes(name); |
| return new String(content); |
| } |
| |
| public long getLastModified() { |
| log.debug("getLastModified"); |
| return super.getLastModified(); |
| } |
| |
| public String getName() { |
| log.debug("getName " + super.getName()); |
| return super.getName(); |
| } |
| |
| public boolean isNameCompatible(String simpleName, Kind kind) { |
| log.debug("isNameCompatible " + simpleName + " " + kind); |
| // return super.isNameCompatible(simpleName, kind); |
| return true; |
| } |
| |
| public InputStream openInputStream() throws IOException { |
| log.debug("openInputStream"); |
| return super.openInputStream(); |
| } |
| |
| public OutputStream openOutputStream() throws IOException { |
| log.debug("openOutputStream"); |
| return super.openOutputStream(); |
| } |
| |
| public Reader openReader(boolean arg0) throws IOException { |
| log.debug("openReader"); |
| return super.openReader(arg0); |
| } |
| |
| public Writer openWriter() throws IOException { |
| log.debug("openWriter"); |
| return super.openWriter(); |
| } |
| |
| public URI toUri() { |
| // log.debug("toUri " + super.toUri()); |
| return super.toUri(); |
| } |
| } |
| |
| private class JciJavaFileManager implements JavaFileManager { |
| // private final ResourceStore store; |
| final Collection<JavaFileObject> units; |
| |
| public JciJavaFileManager( final Collection<JavaFileObject> pUnits, final ResourceStore pStore ) { |
| // store = pStore; |
| units = pUnits; |
| } |
| |
| public void close() { |
| log.debug("close"); |
| } |
| public void flush() { |
| log.debug("flush"); |
| } |
| public ClassLoader getClassLoader(JavaFileManager.Location location) { |
| log.debug("getClassLoader"); |
| return null; |
| } |
| public FileObject getFileForInput(JavaFileManager.Location location, String packageName, String relativeName) { |
| log.debug("getFileForInput"); |
| return null; |
| } |
| public FileObject getFileForOutput(JavaFileManager.Location location, String packageName, String relativeName, FileObject sibling) { |
| log.debug("getFileForOutput"); |
| return null; |
| } |
| public JavaFileObject getJavaFileForInput(JavaFileManager.Location location, String className, JavaFileObject.Kind kind) { |
| log.debug("getJavaFileForInput"); |
| return null; |
| } |
| public JavaFileObject getJavaFileForOutput(JavaFileManager.Location location, String className, JavaFileObject.Kind kind, FileObject sibling) { |
| log.debug("getJavaFileForOutput"); |
| return null; |
| } |
| public int isSupportedOption(String option) { |
| log.debug("isSupportedOption " + option); |
| return 0; |
| } |
| public boolean handleOption(String current, Iterator<String> remaining) { |
| log.debug("handleOption " + current); |
| return false; |
| } |
| public boolean hasLocation(JavaFileManager.Location location) { |
| log.debug("hasLocation " + location); |
| return false; |
| } |
| public String inferBinaryName(JavaFileManager.Location location, JavaFileObject file) { |
| String s = file.getName().replaceFirst(".java", ".class"); |
| log.debug("inferBinaryName " + file.getName() + " -> " + s); |
| return s; |
| } |
| public Iterable<JavaFileObject> list(JavaFileManager.Location location, String packageName, Set<JavaFileObject.Kind> kinds, boolean recurse) { |
| if (packageName.startsWith("java.")) { |
| return new ArrayList<JavaFileObject>(); |
| } |
| log.debug("list " + location + packageName + kinds + recurse); |
| return units; |
| } |
| public boolean isSameFile(FileObject fileobject, FileObject fileobject1) { |
| return false; |
| } |
| } |
| |
| private final Jsr199JavaCompilerSettings settings; |
| |
| public Jsr199JavaCompiler() { |
| settings = new Jsr199JavaCompilerSettings(); |
| } |
| |
| public Jsr199JavaCompiler( final Jsr199JavaCompilerSettings pSettings ) { |
| settings = pSettings; |
| } |
| |
| public CompilationResult compile( final String[] pResourcePaths, final ResourceReader pReader, final ResourceStore pStore, final ClassLoader classLoader, JavaCompilerSettings settings) { |
| |
| final Collection<JavaFileObject> units = new ArrayList<JavaFileObject>(); |
| for (int i = 0; i < pResourcePaths.length; i++) { |
| final String sourcePath = pResourcePaths[i]; |
| log.debug("compiling " + sourcePath); |
| units.add(new CompilationUnit(sourcePath, pReader)); |
| } |
| |
| JavaCompiler compiler = ToolProvider.getSystemJavaCompiler(); |
| |
| if (compiler == null) { |
| ServiceLoader<javax.tools.JavaCompiler> loader = ServiceLoader.load(javax.tools.JavaCompiler.class); |
| compiler = loader.iterator().next(); |
| } |
| |
| if (compiler == null) { |
| throw new RuntimeException("No java compiler in class path"); |
| } |
| |
| final JavaFileManager fileManager = new JciJavaFileManager(units, pStore); |
| final DiagnosticCollector<JavaFileObject> diagnostics = new DiagnosticCollector<JavaFileObject>(); |
| |
| CompilationTask task = compiler.getTask(null, fileManager, diagnostics, null, null, units); |
| |
| if (task.call()) { |
| log.debug("compiled"); |
| } |
| |
| final List<Diagnostic<? extends JavaFileObject>> jsrProblems = diagnostics.getDiagnostics(); |
| final CompilationProblem[] problems = new CompilationProblem[jsrProblems.size()]; |
| int i = 0; |
| for (final Diagnostic<? extends JavaFileObject> jsrProblem : jsrProblems) { |
| problems[i++] = new Jsr199CompilationProblem(jsrProblem); |
| } |
| |
| return new CompilationResult(problems); |
| } |
| |
| public JavaCompilerSettings createDefaultSettings() { |
| return this.settings; |
| } |
| |
| } |