UMLGraph/src/main/java/org/umlgraph/doclet/UmlGraphDoc.java

292 lines
13 KiB
Java

package org.umlgraph.doclet;
import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.OutputStreamWriter;
import java.util.Comparator;
import java.util.HashSet;
import java.util.Locale;
import java.util.Set;
import java.util.TreeSet;
import java.util.regex.Pattern;
import javax.lang.model.SourceVersion;
import javax.lang.model.element.Element;
import javax.lang.model.element.ModuleElement;
import javax.lang.model.element.Name;
import javax.lang.model.element.PackageElement;
import javax.lang.model.element.TypeElement;
import javax.tools.Diagnostic;
import org.umlgraph.doclet.util.ElementUtil;
import jdk.javadoc.doclet.Doclet;
import jdk.javadoc.doclet.DocletEnvironment;
import jdk.javadoc.doclet.Reporter;
import jdk.javadoc.doclet.StandardDoclet;
/**
* Chaining doclet that runs the standart Javadoc doclet first, and on success,
* runs the generation of dot files by UMLGraph
*
* @author wolf
*
* @depend - - - WrappedClassDoc
* @depend - - - WrappedRootDoc
*/
public class UmlGraphDoc implements Doclet {
private Locale locale;
private Reporter reporter;
private Options options;
private StandardDoclet standard;
public UmlGraphDoc() {
this.options = new Options();
this.standard = new StandardDoclet();
}
@Override
public void init(Locale locale, Reporter reporter) {
this.locale = locale;
this.reporter = reporter;
this.standard.init(locale, reporter);
}
@Override
public String getName() {
return this.getClass().getSimpleName();
}
@Override
public Set<? extends Doclet.Option> getSupportedOptions() {
Set<Doclet.Option> options = new HashSet<>(standard.getSupportedOptions());
for (Doclet.Option opt : this.options.OPTIONS) {
options.add(opt);
}
return options;
}
@Override
public SourceVersion getSupportedSourceVersion() {
return standard.getSupportedSourceVersion();
}
/**
* Standard doclet entry point
*
* @param root
* @return
*/
@Override
public boolean run(DocletEnvironment root) {
reporter.print(Diagnostic.Kind.NOTE, "UmlGraphDoc version " + Version.VERSION + ", running the standard doclet");
standard.run(root);
reporter.print(Diagnostic.Kind.NOTE, "UmlGraphDoc version " + Version.VERSION + ", altering javadocs");
try {
Options opt = UmlGraph.buildOptions(root, this.options);
// in javadoc enumerations are always printed
opt.showEnumerations = true;
opt.relativeLinksForSourcePackages = true;
// enable strict matching for hide expressions
opt.strictMatching = true;
reporter.print(Diagnostic.Kind.NOTE, opt.toString());
generatePackageDiagrams(root, reporter, opt, this.options.outputDirectory);
generateContextDiagrams(root, reporter, opt, this.options.outputDirectory);
} catch (Throwable t) {
reporter.print(Diagnostic.Kind.WARNING, "Error: " + t.toString());
t.printStackTrace();
return false;
}
return true;
}
/**
* Generates the package diagrams for all of the packages that contain classes
* among those returned by RootDoc.class()
*/
private static void generatePackageDiagrams(DocletEnvironment root, Reporter reporter, Options opt, String outputFolder) throws IOException {
Set<Name> packages = new HashSet<>();
for (Element classDoc : root.getIncludedElements()) {
PackageElement packageDoc = null;
if (classDoc instanceof PackageElement) {
packageDoc = (PackageElement) classDoc;
} else if (classDoc instanceof TypeElement) {
packageDoc = ElementUtil.getPackageOf(root, classDoc);
} else {
continue;
}
if (!packages.contains(packageDoc.getSimpleName())) {
reporter.print(Diagnostic.Kind.WARNING, "Package processed " + packageDoc.getQualifiedName());
packages.add(packageDoc.getSimpleName());
OptionProvider view = new PackageView(outputFolder, packageDoc, root, opt);
UmlGraph.buildGraph(reporter, root, opt, view, packageDoc);
runGraphviz(opt.dotExecutable, outputFolder, ElementUtil.getModuleOf(root, packageDoc), packageDoc.getQualifiedName(), packageDoc.getSimpleName(), reporter);
alterHtmlDocs(opt, outputFolder, ElementUtil.getModuleOf(root, packageDoc), packageDoc.getQualifiedName(), packageDoc.getSimpleName(), "package-summary.html",
Pattern.compile("(</[Hh]2>)|(<h1 title=\"Package\").*"), reporter);
}
}
}
/**
* Generates the context diagram for a single class
*/
private static void generateContextDiagrams(DocletEnvironment root, Reporter reporter, Options opt, String outputFolder) throws IOException {
Set<TypeElement> classDocs = new TreeSet<>(new Comparator<>() {
public int compare(TypeElement cd1, TypeElement cd2) {
return cd1.getSimpleName().toString().compareTo(cd2.getSimpleName().toString());
}
});
for (Element classDoc : root.getIncludedElements()) {
if (classDoc instanceof TypeElement) {
classDocs.add((TypeElement) classDoc);
}
}
ContextView view = null;
for (TypeElement classDoc : classDocs) {
reporter.print(Diagnostic.Kind.WARNING, "Class processed " + classDoc.getQualifiedName());
try {
if (view == null) {
view = new ContextView(outputFolder, classDoc, root, opt);
} else {
view.setContextCenter(classDoc);
}
UmlGraph.buildGraph(reporter, root, opt, view, classDoc);
runGraphviz(opt.dotExecutable, outputFolder, ElementUtil.getModuleOf(root, classDoc), ElementUtil.getPackageOf(root, classDoc).getQualifiedName(), classDoc.getSimpleName(), reporter);
alterHtmlDocs(opt, outputFolder, ElementUtil.getModuleOf(root, classDoc), ElementUtil.getPackageOf(root, classDoc).getQualifiedName(), classDoc.getSimpleName(),
classDoc.getSimpleName() + ".html",
Pattern.compile(".*(Class|Interface|Enum) " + classDoc.getSimpleName() + ".*"), reporter);
} catch (Exception e) {
throw new RuntimeException("Error generating " + classDoc.getSimpleName(), e);
}
}
}
/**
* Runs Graphviz dot building both a diagram (in png format) and a client side
* map for it.
*/
private static void runGraphviz(String dotExecutable, String outputFolder, ModuleElement module, Name packageName, Name name, Reporter reporter) {
if (dotExecutable == null) {
dotExecutable = "dot";
}
String fileName = packageName.toString().replace(".", "/") + "/" + name;
if (Runtime.version().major() > 10 && module != null) {
fileName = module.getQualifiedName().toString() + '/' + fileName;
}
File dotFile = new File(outputFolder, fileName + ".dot");
File svgFile = new File(outputFolder, fileName + ".svg");
try {
Process p = Runtime.getRuntime().exec(new String[] { dotExecutable, "-Tsvg", "-o",
svgFile.getAbsolutePath(), dotFile.getAbsolutePath() });
BufferedReader reader = new BufferedReader(new InputStreamReader(p.getErrorStream()));
String line;
while ((line = reader.readLine()) != null) {
reporter.print(Diagnostic.Kind.WARNING, line);
}
int result = p.waitFor();
if (result != 0) {
reporter.print(Diagnostic.Kind.WARNING, "Errors running Graphviz on " + dotFile);
}
} catch (Exception e) {
e.printStackTrace();
System.err.println("Ensure that dot is in your path and that its path does not contain spaces");
}
}
// Format string for the uml image div tag.
private static final String UML_DIV_TAG = "<div align=\"center\">"
+ "<object width=\"100%%\" height=\"100%%\" type=\"image/svg+xml\" data=\"%1$s.svg\" alt=\"Package class diagram package %1$s\" border=0></object>"
+ "</div>";
private static final String UML_AUTO_SIZED_DIV_TAG = "<div align=\"center\">"
+ "<object type=\"image/svg+xml\" data=\"%1$s.svg\" alt=\"Package class diagram package %1$s\" border=0></object>"
+ "</div>";
private static final String EXPANDABLE_UML_STYLE = "font-family: Arial,Helvetica,sans-serif;font-size: 1.5em; display: block; width: 250px; height: 20px; background: #009933; padding: 5px; text-align: center; border-radius: 8px; color: white; font-weight: bold;";
// Format string for the java script tag.
private static final String EXPANDABLE_UML = "<script type=\"text/javascript\">\n" + "function show() {\n"
+ " document.getElementById(\"uml\").innerHTML = \n" + " \'<a style=\"" + EXPANDABLE_UML_STYLE
+ "\" href=\"javascript:hide()\">%3$s</a>\' +\n" + " \'%1$s\';\n" + "}\n" + "function hide() {\n"
+ " document.getElementById(\"uml\").innerHTML = \n" + " \'<a style=\"" + EXPANDABLE_UML_STYLE
+ "\" href=\"javascript:show()\">%2$s</a>\' ;\n" + "}\n" + "</script>\n" + "<div id=\"uml\" >\n"
+ " <a href=\"javascript:show()\">\n" + " <a style=\"" + EXPANDABLE_UML_STYLE
+ "\" href=\"javascript:show()\">%2$s</a> \n" + "</div>";
/**
* Takes an HTML file, looks for the first instance of the specified insertion
* point, and inserts the diagram image reference and a client side map in that
* point.
*/
private static void alterHtmlDocs(Options opt, String outputFolder, ModuleElement module, Name packageName, Name className,
String htmlFileName, Pattern insertPointPattern, Reporter reporter) throws IOException {
// setup files
String prefix = Runtime.version().major() > 10 && module != null ? module.getQualifiedName().toString() + '/' : "";
File output = new File(outputFolder, prefix + packageName.toString().replace(".", "/"));
File htmlFile = new File(output, htmlFileName);
File alteredFile = new File(htmlFile.getAbsolutePath() + ".uml");
if (!htmlFile.exists()) {
System.err.println("Expected file not found: " + htmlFile.getAbsolutePath());
return;
}
// parse & rewrite
BufferedWriter writer = null;
BufferedReader reader = null;
boolean matched = false;
try {
writer = new BufferedWriter(new OutputStreamWriter(new FileOutputStream(alteredFile), opt.outputEncoding));
reader = new BufferedReader(new InputStreamReader(new FileInputStream(htmlFile), opt.outputEncoding));
String line;
while ((line = reader.readLine()) != null) {
writer.write(line);
writer.newLine();
if (!matched && insertPointPattern.matcher(line).matches()) {
matched = true;
String tag;
if (opt.autoSize) {
tag = String.format(UML_AUTO_SIZED_DIV_TAG, className);
} else {
tag = String.format(UML_DIV_TAG, className);
}
if (opt.collapsibleDiagrams) {
tag = String.format(EXPANDABLE_UML, tag, "Show UML class diagram", "Hide UML class diagram");
}
writer.write("<!-- UML diagram added by UMLGraph version " + Version.VERSION + " (http://www.spinellis.gr/umlgraph/) -->");
writer.newLine();
writer.write(tag);
writer.newLine();
}
}
} finally {
if (writer != null) {
writer.close();
}
if (reader != null) {
reader.close();
}
}
// if altered, delete old file and rename new one to the old file name
if (matched) {
htmlFile.delete();
alteredFile.renameTo(htmlFile);
} else {
reporter.print(Diagnostic.Kind.NOTE, "Warning, could not find a line that matches the pattern '"
+ insertPointPattern.pattern() + "'.\n Class diagram reference not inserted");
alteredFile.delete();
}
}
}