| /* Copyright 2004 The Apache Software Foundation |
| * |
| * 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.apache.xmlbeans.impl.jam.internal.javadoc; |
| |
| import com.sun.javadoc.Doclet; |
| import com.sun.javadoc.RootDoc; |
| |
| import java.io.*; |
| import java.util.ArrayList; |
| import java.util.Arrays; |
| import java.util.List; |
| |
| import org.apache.xmlbeans.impl.jam.provider.JamLogger; |
| |
| |
| /** |
| * <p>This class does its best to encapsulate and make threadsafe the |
| * nastiness that is the javadoc 'invocation' API.</p> |
| * |
| * @author Patrick Calahan <email: pcal-at-bea-dot-com> |
| */ |
| public class JavadocRunner extends Doclet { |
| |
| // ======================================================================== |
| // Constructor |
| |
| /* package */ JavadocRunner() {} |
| |
| // ======================================================================== |
| // Public methods |
| |
| /** |
| * Runs javadoc on the given source directory and returns a JDRoot |
| * which wraps the javadoc view of the source files there. |
| */ |
| /*package*/ synchronized RootDoc run(File[] files, |
| PrintWriter out, |
| String sourcePath, |
| String classPath, |
| String[] javadocArgs, |
| JamLogger logger) |
| throws IOException, FileNotFoundException |
| { |
| if (files == null || files.length == 0) { |
| throw new FileNotFoundException("No input files found."); |
| } |
| List argList = new ArrayList(); |
| if (javadocArgs != null) { |
| argList.addAll(Arrays.asList(javadocArgs)); |
| } |
| argList.add("-private"); |
| if (sourcePath != null) { |
| argList.add("-sourcepath"); |
| argList.add(sourcePath); |
| } |
| if (classPath != null) { |
| argList.add("-classpath"); |
| argList.add(classPath); |
| argList.add("-docletpath"); |
| argList.add(classPath); |
| } |
| for(int i=0; i<files.length; i++) { |
| argList.add(files[i].toString()); |
| if (out != null) out.println(files[i].toString()); |
| } |
| String[] args = new String[argList.size()]; |
| argList.toArray(args); |
| // create a buffer to capture the crap javadoc spits out. we'll |
| // just ignore it unless something goes wrong |
| PrintWriter spewWriter; |
| StringWriter spew = null; |
| if (out == null) { |
| spewWriter = new PrintWriter(spew = new StringWriter()); |
| } else { |
| spewWriter = out; |
| } |
| ClassLoader originalCCL = Thread.currentThread().getContextClassLoader(); |
| try { |
| JavadocResults.prepare(); |
| if (logger.isVerbose(this)) { |
| logger.verbose("Invoking javadoc. Command line equivalent is: "); |
| StringWriter sw = new StringWriter(); |
| sw.write("javadoc "); |
| for(int i=0; i<args.length; i++) { |
| sw.write("'"); |
| sw.write(args[i]); |
| sw.write("' "); |
| } |
| logger.verbose(" "+sw.toString()); |
| } |
| int result = com.sun.tools.javadoc.Main.execute("JAM", |
| spewWriter, |
| spewWriter, |
| spewWriter, |
| this.getClass().getName(), |
| args); |
| RootDoc root = JavadocResults.getRoot(); |
| if (result != 0 || root == null) { |
| spewWriter.flush(); |
| throw new RuntimeException("Unknown javadoc problem: result="+result+ |
| ", root="+root+":\n"+ |
| ((spew == null) ? "" : spew.toString())); |
| } |
| return root; |
| } catch(RuntimeException e) { |
| throw e; |
| } finally { |
| //clean up the mess |
| Thread.currentThread().setContextClassLoader(originalCCL); |
| } |
| } |
| |
| // ======================================================================== |
| // Doclet 'implementation' |
| |
| public static boolean start(RootDoc root) { |
| JavadocResults.setRoot(root); |
| return true; |
| } |
| } |