src/jdk.javadoc/share/classes/jdk/javadoc/internal/doclets/toolkit/AbstractDoclet.java
changeset 47216 71c04702a3d5
parent 45417 f7479ee8de69
child 47849 0e38db7cf1cc
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/jdk.javadoc/share/classes/jdk/javadoc/internal/doclets/toolkit/AbstractDoclet.java	Tue Sep 12 19:03:39 2017 +0200
@@ -0,0 +1,289 @@
+/*
+ * Copyright (c) 2003, 2017, 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
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+package jdk.javadoc.internal.doclets.toolkit;
+
+import java.util.SortedSet;
+import java.util.TreeSet;
+
+import javax.lang.model.SourceVersion;
+import javax.lang.model.element.PackageElement;
+import javax.lang.model.element.TypeElement;
+
+import jdk.javadoc.doclet.Doclet;
+import jdk.javadoc.doclet.DocletEnvironment;
+import jdk.javadoc.doclet.StandardDoclet;
+import jdk.javadoc.internal.doclets.formats.html.HtmlDoclet;
+import jdk.javadoc.internal.doclets.toolkit.builders.AbstractBuilder;
+import jdk.javadoc.internal.doclets.toolkit.builders.BuilderFactory;
+import jdk.javadoc.internal.doclets.toolkit.util.ClassTree;
+import jdk.javadoc.internal.doclets.toolkit.util.DocFileIOException;
+import jdk.javadoc.internal.doclets.toolkit.util.UncheckedDocletException;
+import jdk.javadoc.internal.doclets.toolkit.util.InternalException;
+import jdk.javadoc.internal.doclets.toolkit.util.PackageListWriter;
+import jdk.javadoc.internal.doclets.toolkit.util.ResourceIOException;
+import jdk.javadoc.internal.doclets.toolkit.util.SimpleDocletException;
+import jdk.javadoc.internal.doclets.toolkit.util.Utils;
+
+import static javax.tools.Diagnostic.Kind.*;
+
+/**
+ * An abstract implementation of a Doclet.
+ *
+ *  <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>
+ *
+ * @author Jamie Ho
+ */
+public abstract class AbstractDoclet implements Doclet {
+
+    /**
+     * The global configuration information for this run.
+     */
+    private BaseConfiguration configuration;
+
+    protected Messages messages;
+
+    /*
+     *  a handle to our utility methods
+     */
+    protected Utils utils;
+
+    /**
+     * The only doclet that may use this toolkit is {@value}
+     */
+    private static final String TOOLKIT_DOCLET_NAME =
+        jdk.javadoc.internal.doclets.formats.html.HtmlDoclet.class.getName();
+
+    /**
+     * Verify that the only doclet that is using this toolkit is
+     * {@value #TOOLKIT_DOCLET_NAME}.
+     */
+    private boolean isValidDoclet() {
+        if (!getClass().getName().equals(TOOLKIT_DOCLET_NAME)) {
+            messages.error("doclet.Toolkit_Usage_Violation",
+                TOOLKIT_DOCLET_NAME);
+            return false;
+        }
+        return true;
+    }
+
+    /**
+     * The method that starts the execution of the doclet.
+     *
+     * @param docEnv   the {@link DocletEnvironment}.
+     * @return true if the doclet executed without error.  False otherwise.
+     */
+    @Override
+    public boolean run(DocletEnvironment docEnv) {
+        configuration = getConfiguration();
+        configuration.initConfiguration(docEnv);
+        configuration.cmtUtils = new CommentUtils(configuration);
+        configuration.utils = new Utils(configuration);
+        utils = configuration.utils;
+        configuration.workArounds = new WorkArounds(configuration);
+        messages = configuration.getMessages();
+
+        if (!isValidDoclet()) {
+            return false;
+        }
+
+        try {
+            try {
+                startGeneration(docEnv);
+                return true;
+            } catch (UncheckedDocletException e) {
+                throw (DocletException) e.getCause();
+            }
+
+        } catch (DocFileIOException e) {
+            switch (e.mode) {
+                case READ:
+                    messages.error("doclet.exception.read.file",
+                            e.fileName.getPath(), e.getCause());
+                    break;
+                case WRITE:
+                    messages.error("doclet.exception.write.file",
+                            e.fileName.getPath(), e.getCause());
+            }
+            dumpStack(configuration.dumpOnError, e);
+
+        } catch (ResourceIOException e) {
+            messages.error("doclet.exception.read.resource",
+                    e.resource.getPath(), e.getCause());
+            dumpStack(configuration.dumpOnError, e);
+
+        } catch (SimpleDocletException e) {
+            configuration.reporter.print(ERROR, e.getMessage());
+            dumpStack(configuration.dumpOnError, e);
+
+        } catch (InternalException e) {
+            configuration.reporter.print(ERROR, e.getMessage());
+            reportInternalError(e.getCause());
+
+        } catch (DocletException | RuntimeException | Error e) {
+            messages.error("doclet.internal.exception", e);
+            reportInternalError(e);
+        }
+
+        return false;
+    }
+
+    private void reportInternalError(Throwable t) {
+        if (getClass().equals(StandardDoclet.class) || getClass().equals(HtmlDoclet.class)) {
+            System.err.println(configuration.getResources().getText("doclet.internal.report.bug"));
+        }
+        dumpStack(true, t);
+    }
+
+    private void dumpStack(boolean enabled, Throwable t) {
+        if (enabled && t != null) {
+            t.printStackTrace(System.err);
+        }
+    }
+
+    /**
+     * Returns the SourceVersion indicating the features supported by this doclet.
+     *
+     * @return SourceVersion
+     */
+    @Override
+    public SourceVersion getSupportedSourceVersion() {
+        return SourceVersion.RELEASE_9;
+    }
+
+    /**
+     * Create the configuration instance and returns it.
+     *
+     * @return the configuration of the doclet.
+     */
+    public abstract BaseConfiguration getConfiguration();
+
+    /**
+     * Start the generation of files. Call generate methods in the individual
+     * writers, which will in turn generate the documentation files. Call the
+     * TreeWriter generation first to ensure the Class Hierarchy is built
+     * first and then can be used in the later generation.
+     *
+     * @see jdk.doclet.DocletEnvironment
+     * @throws DocletException if there is a problem while generating the documentation
+     */
+    private void startGeneration(DocletEnvironment docEnv) throws DocletException {
+        if (configuration.getIncludedTypeElements().isEmpty()) {
+            messages.error("doclet.No_Public_Classes_To_Document");
+            return;
+        }
+        if (!configuration.setOptions()) {
+            return;
+        }
+        messages.notice("doclet.build_version",
+            configuration.getDocletSpecificBuildDate());
+        ClassTree classtree = new ClassTree(configuration, configuration.nodeprecated);
+
+        generateClassFiles(docEnv, classtree);
+
+        PackageListWriter.generate(configuration);
+        generatePackageFiles(classtree);
+        generateModuleFiles();
+
+        generateOtherFiles(docEnv, classtree);
+        configuration.tagletManager.printReport();
+    }
+
+    /**
+     * Generate additional documentation that is added to the API documentation.
+     *
+     * @param docEnv     the DocletEnvironment
+     * @param classtree the data structure representing the class tree
+     * @throws DocletException if there is a problem while generating the documentation
+     */
+    protected void generateOtherFiles(DocletEnvironment docEnv, ClassTree classtree)
+            throws DocletException {
+        BuilderFactory builderFactory = configuration.getBuilderFactory();
+        AbstractBuilder constantsSummaryBuilder = builderFactory.getConstantsSummaryBuilder();
+        constantsSummaryBuilder.build();
+        AbstractBuilder serializedFormBuilder = builderFactory.getSerializedFormBuilder();
+        serializedFormBuilder.build();
+    }
+
+    /**
+     * Generate the module documentation.
+     *
+     * @throws DocletException if there is a problem while generating the documentation
+     *
+     */
+    protected abstract void generateModuleFiles() throws DocletException;
+
+    /**
+     * Generate the package documentation.
+     *
+     * @param classtree the data structure representing the class tree
+     * @throws DocletException if there is a problem while generating the documentation
+     */
+    protected abstract void generatePackageFiles(ClassTree classtree) throws DocletException;
+
+    /**
+     * Generate the class documentation.
+     *
+     * @param arr the set of types to be documented
+     * @param classtree the data structure representing the class tree
+     * @throws DocletException if there is a problem while generating the documentation
+     */
+    protected abstract void generateClassFiles(SortedSet<TypeElement> arr, ClassTree classtree)
+            throws DocletException;
+
+    /**
+     * Iterate through all classes and construct documentation for them.
+     *
+     * @param docEnv      the DocletEnvironment
+     * @param classtree the data structure representing the class tree
+     * @throws DocletException if there is a problem while generating the documentation
+     */
+    protected void generateClassFiles(DocletEnvironment docEnv, ClassTree classtree)
+            throws DocletException {
+        generateClassFiles(classtree);
+        SortedSet<PackageElement> packages = new TreeSet<>(utils.makePackageComparator());
+        packages.addAll(configuration.getSpecifiedPackageElements());
+        configuration.modulePackages.values().stream().forEach(packages::addAll);
+        for (PackageElement pkg : packages) {
+            generateClassFiles(utils.getAllClasses(pkg), classtree);
+        }
+    }
+
+    /**
+     * Generate the class files for single classes specified on the command line.
+     *
+     * @param classtree the data structure representing the class tree
+     * @throws DocletException if there is a problem while generating the documentation
+     */
+    private void generateClassFiles(ClassTree classtree) throws DocletException {
+        SortedSet<PackageElement> packages = configuration.typeElementCatalog.packages();
+        for (PackageElement pkg : packages) {
+            generateClassFiles(configuration.typeElementCatalog.allClasses(pkg), classtree);
+        }
+    }
+}