| /* |
| * Copyright 2003-2007 the original author or authors. |
| * |
| * Licensed 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.codehaus.groovy.ant; |
| |
| import groovy.lang.GroovyClassLoader; |
| |
| import org.apache.tools.ant.BuildException; |
| import org.apache.tools.ant.taskdefs.MatchingTask; |
| import org.apache.tools.ant.types.Path; |
| import org.apache.tools.ant.types.Reference; |
| |
| import org.codehaus.groovy.control.CompilerConfiguration; |
| import org.codehaus.groovy.tools.ErrorReporter; |
| |
| import java.io.File; |
| import java.io.StringWriter; |
| import java.io.PrintWriter; |
| |
| /** |
| * Support for compilation related tasks. |
| * |
| * @version $Id$ |
| * @author <a href="mailto:jason@planet57.com">Jason Dillon</a> |
| */ |
| public abstract class CompileTaskSupport |
| extends MatchingTask |
| { |
| protected final LoggingHelper log = new LoggingHelper(this); |
| |
| protected Path src; |
| |
| protected File destdir; |
| |
| protected Path classpath; |
| |
| protected CompilerConfiguration config = new CompilerConfiguration(); |
| |
| protected boolean failOnError = true; |
| |
| public void setFailonerror(final boolean fail) { |
| failOnError = fail; |
| } |
| |
| public boolean getFailonerror() { |
| return failOnError; |
| } |
| |
| public Path createSrc() { |
| if (src == null) { |
| src = new Path(getProject()); |
| } |
| return src.createPath(); |
| } |
| |
| public void setSrcdir(final Path dir) { |
| assert dir != null; |
| |
| if (src == null) { |
| src = dir; |
| } |
| else { |
| src.append(dir); |
| } |
| } |
| |
| public Path getSrcdir() { |
| return src; |
| } |
| |
| public void setDestdir(final File dir) { |
| assert dir != null; |
| |
| this.destdir = dir; |
| } |
| |
| public void setClasspath(final Path path) { |
| assert path != null; |
| |
| if (classpath == null) { |
| classpath = path; |
| } |
| else { |
| classpath.append(path); |
| } |
| } |
| |
| public Path getClasspath() { |
| return classpath; |
| } |
| |
| public Path createClasspath() { |
| if (classpath == null) { |
| classpath = new Path(getProject()); |
| } |
| |
| return classpath.createPath(); |
| } |
| |
| public void setClasspathRef(final Reference r) { |
| assert r != null; |
| |
| createClasspath().setRefid(r); |
| } |
| |
| public CompilerConfiguration createConfiguration() { |
| return config; |
| } |
| |
| protected void validate() throws BuildException { |
| if (src == null) { |
| throw new BuildException("Missing attribute: srcdir (or one or more nested <src> elements).", getLocation()); |
| } |
| |
| if (destdir == null) { |
| throw new BuildException("Missing attribute: destdir", getLocation()); |
| } |
| |
| if (!destdir.exists()) { |
| throw new BuildException("Destination directory does not exist: " + destdir, getLocation()); |
| } |
| } |
| |
| protected GroovyClassLoader createClassLoader() { |
| ClassLoader parent = ClassLoader.getSystemClassLoader(); |
| GroovyClassLoader gcl = new GroovyClassLoader(parent, config); |
| |
| Path path = getClasspath(); |
| if (path != null) { |
| final String[] filePaths = path.list(); |
| for (int i = 0; i < filePaths.length; i++) { |
| String filePath = filePaths[i]; |
| gcl.addClasspath(filePath); |
| } |
| } |
| |
| return gcl; |
| } |
| |
| protected void handleException(final Exception e) throws BuildException { |
| assert e != null; |
| |
| StringWriter writer = new StringWriter(); |
| new ErrorReporter(e, false).write(new PrintWriter(writer)); |
| String message = writer.toString(); |
| |
| if (failOnError) { |
| throw new BuildException(message, e, getLocation()); |
| } |
| else { |
| log.error(message); |
| } |
| } |
| |
| public void execute() throws BuildException { |
| validate(); |
| |
| try { |
| compile(); |
| } |
| catch (Exception e) { |
| handleException(e); |
| } |
| } |
| |
| protected abstract void compile() throws Exception; |
| } |