/*
 * Copyright (c) 2015, 2016, 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.  Oracle designates this
 * particular file as subject to the "Classpath" exception as provided
 * by Oracle in the LICENSE file that accompanied this code.
 *
 * 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
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package com.sun.tools.sjavac.comp;

import java.io.File;
import java.io.IOException;
import java.io.PrintWriter;
import java.io.StringWriter;
import java.net.URI;
import java.util.Arrays;
import java.util.Iterator;
import java.util.List;
import java.util.Set;

import javax.tools.JavaFileObject;
import javax.tools.StandardJavaFileManager;
import javax.tools.StandardLocation;
import javax.tools.ToolProvider;

import com.sun.tools.javac.api.JavacTaskImpl;
import com.sun.tools.javac.api.JavacTool;
import com.sun.tools.javac.main.Main;
import com.sun.tools.javac.main.Main.Result;
import com.sun.tools.javac.util.Context;
import com.sun.tools.javac.util.Dependencies;
import com.sun.tools.javac.util.ListBuffer;
import com.sun.tools.sjavac.Log;
import com.sun.tools.sjavac.Util;
import com.sun.tools.sjavac.comp.dependencies.NewDependencyCollector;
import com.sun.tools.sjavac.comp.dependencies.PublicApiCollector;
import com.sun.tools.sjavac.server.CompilationSubResult;
import com.sun.tools.sjavac.server.SysInfo;

This is NOT part of any supported API. If you write code that depends on this, you do so at your own risk. This code and its internal interfaces are subject to change or deletion without notice.

/** * <p><b>This is NOT part of any supported API. * If you write code that depends on this, you do so at your own risk. * This code and its internal interfaces are subject to change or * deletion without notice.</b> */
public class CompilationService { public SysInfo getSysInfo() { return new SysInfo(Runtime.getRuntime().availableProcessors(), Runtime.getRuntime().maxMemory()); } public CompilationSubResult compile(String protocolId, String invocationId, String[] args, List<File> explicitSources, Set<URI> sourcesToCompile, Set<URI> visibleSources) { JavacTool compiler = (JavacTool) ToolProvider.getSystemJavaCompiler(); try (StandardJavaFileManager fm = compiler.getStandardFileManager(null, null, null)) { SmartFileManager sfm = new SmartFileManager(fm); Context context = new Context(); Dependencies.GraphDependencies.preRegister(context); // Now setup the actual compilation CompilationSubResult compilationResult = new CompilationSubResult(Result.OK); // First deal with explicit source files on cmdline and in at file ListBuffer<JavaFileObject> explicitJFOs = new ListBuffer<>(); for (JavaFileObject jfo : fm.getJavaFileObjectsFromFiles(explicitSources)) { explicitJFOs.append(SmartFileManager.locWrap(jfo, StandardLocation.SOURCE_PATH)); } // Now deal with sources supplied as source_to_compile ListBuffer<File> sourcesToCompileFiles = new ListBuffer<>(); for (URI u : sourcesToCompile) sourcesToCompileFiles.append(new File(u)); for (JavaFileObject jfo : fm.getJavaFileObjectsFromFiles(sourcesToCompileFiles)) explicitJFOs.append(SmartFileManager.locWrap(jfo, StandardLocation.SOURCE_PATH)); // Create a log to capture compiler output StringWriter stderrLog = new StringWriter(); Result result; PublicApiCollector pubApiCollector = new PublicApiCollector(context, explicitJFOs); PathAndPackageVerifier papVerifier = new PathAndPackageVerifier(); NewDependencyCollector depsCollector = new NewDependencyCollector(context, explicitJFOs); try { if (explicitJFOs.size() > 0) { sfm.setVisibleSources(visibleSources); sfm.cleanArtifacts(); // Do the compilation! JavacTaskImpl task = (JavacTaskImpl) compiler.getTask(new PrintWriter(stderrLog), sfm, null, Arrays.asList(args), null, explicitJFOs, context); sfm.setSymbolFileEnabled(!com.sun.tools.javac.util.Options.instance(context).isSet("ignore.symbol.file")); task.addTaskListener(depsCollector); task.addTaskListener(pubApiCollector); task.addTaskListener(papVerifier); logJavacInvocation(args); result = task.doCall(); Log.debug("javac result: " + result); sfm.flush(); } else { result = Result.ERROR; } } catch (Exception e) { Log.error(Util.getStackTrace(e)); stderrLog.append(Util.getStackTrace(e)); result = Result.ERROR; } compilationResult.packageArtifacts = sfm.getPackageArtifacts(); if (papVerifier.errorsDiscovered()) { result = Result.ERROR; } compilationResult.packageDependencies = depsCollector.getDependencies(false); compilationResult.packageCpDependencies = depsCollector.getDependencies(true); compilationResult.packagePubapis = pubApiCollector.getPubApis(true); compilationResult.dependencyPubapis = pubApiCollector.getPubApis(false); compilationResult.stderr = stderrLog.toString(); compilationResult.result = result; return compilationResult; } catch (IOException e) { throw new Error(e); } } private void logJavacInvocation(String[] args) { Log.debug("Invoking javac with args"); Iterator<String> argIter = Arrays.asList(args).iterator(); while (argIter.hasNext()) { String arg = argIter.next(); String line = " " + arg; if (arg.matches("\\-(d|cp|classpath|sourcepath|source|target)") && argIter.hasNext()) { line += " " + argIter.next(); } Log.debug(line); } } }