langtools/src/java.compiler/share/classes/javax/tools/DocumentationTool.java
changeset 25874 83c19f00452c
parent 25287 d2440361b323
child 34752 9c262a013456
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/langtools/src/java.compiler/share/classes/javax/tools/DocumentationTool.java	Sun Aug 17 15:52:32 2014 +0100
@@ -0,0 +1,183 @@
+/*
+ * Copyright (c) 2005, 2014, 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 javax.tools;
+
+import java.io.Writer;
+import java.nio.charset.Charset;
+import java.util.Locale;
+import java.util.concurrent.Callable;
+
+/**
+ * Interface to invoke Java™ programming language documentation tools from
+ * programs.
+ */
+public interface DocumentationTool extends Tool, OptionChecker {
+    /**
+     * Creates a future for a documentation task with the given
+     * components and arguments.  The task might not have
+     * completed as described in the DocumentationTask interface.
+     *
+     * <p>If a file manager is provided, it must be able to handle all
+     * locations defined in {@link DocumentationTool.Location},
+     * as well as
+     * {@link StandardLocation#SOURCE_PATH},
+     * {@link StandardLocation#CLASS_PATH}, and
+     * {@link StandardLocation#PLATFORM_CLASS_PATH}.
+     *
+     * @param out a Writer for additional output from the tool;
+     * use {@code System.err} if {@code null}
+     *
+     * @param fileManager a file manager; if {@code null} use the
+     * tool's standard filemanager
+     *
+     * @param diagnosticListener a diagnostic listener; if {@code null}
+     * use the tool's default method for reporting diagnostics
+     *
+     * @param docletClass a class providing the necessary methods required
+     * of a doclet
+     *
+     * @param options documentation tool options and doclet options,
+     * {@code null} means no options
+     *
+     * @param compilationUnits the compilation units to compile, {@code
+     * null} means no compilation units
+     *
+     * @return an object representing the compilation
+     *
+     * @throws RuntimeException if an unrecoverable error
+     * occurred in a user supplied component.  The
+     * {@linkplain Throwable#getCause() cause} will be the error in
+     * user code.
+     *
+     * @throws IllegalArgumentException if any of the given
+     * compilation units are of other kind than
+     * {@linkplain JavaFileObject.Kind#SOURCE source}
+     */
+    DocumentationTask getTask(Writer out,
+                            JavaFileManager fileManager,
+                            DiagnosticListener<? super JavaFileObject> diagnosticListener,
+                            Class<?> docletClass,
+                            Iterable<String> options,
+                            Iterable<? extends JavaFileObject> compilationUnits);
+
+    /**
+     * Returns a new instance of the standard file manager implementation
+     * for this tool.  The file manager will use the given diagnostic
+     * listener for producing any non-fatal diagnostics.  Fatal errors
+     * will be signaled with the appropriate exceptions.
+     *
+     * <p>The standard file manager will be automatically reopened if
+     * it is accessed after calls to {@code flush} or {@code close}.
+     * The standard file manager must be usable with other tools.
+     *
+     * @param diagnosticListener a diagnostic listener for non-fatal
+     * diagnostics; if {@code null} use the compiler's default method
+     * for reporting diagnostics
+     *
+     * @param locale the locale to apply when formatting diagnostics;
+     * {@code null} means the {@linkplain Locale#getDefault() default locale}.
+     *
+     * @param charset the character set used for decoding bytes; if
+     * {@code null} use the platform default
+     *
+     * @return the standard file manager
+     */
+    StandardJavaFileManager getStandardFileManager(
+        DiagnosticListener<? super JavaFileObject> diagnosticListener,
+        Locale locale,
+        Charset charset);
+
+    /**
+     * Interface representing a future for a documentation task.  The
+     * task has not yet started.  To start the task, call
+     * the {@linkplain #call call} method.
+     *
+     * <p>Before calling the call method, additional aspects of the
+     * task can be configured, for example, by calling the
+     * {@linkplain #setLocale setLocale} method.
+     */
+    interface DocumentationTask extends Callable<Boolean> {
+        /**
+         * Set the locale to be applied when formatting diagnostics and
+         * other localized data.
+         *
+         * @param locale the locale to apply; {@code null} means apply no
+         * locale
+         * @throws IllegalStateException if the task has started
+         */
+        void setLocale(Locale locale);
+
+        /**
+         * Performs this documentation task.  The task may only
+         * be performed once.  Subsequent calls to this method throw
+         * IllegalStateException.
+         *
+         * @return true if and only all the files were processed without errors;
+         * false otherwise
+         *
+         * @throws RuntimeException if an unrecoverable error occurred
+         * in a user-supplied component.  The
+         * {@linkplain Throwable#getCause() cause} will be the error
+         * in user code.
+         *
+         * @throws IllegalStateException if called more than once
+         */
+        Boolean call();
+    }
+
+    /**
+     * Locations specific to {@link DocumentationTool}.
+     *
+     * @see StandardLocation
+     */
+    enum Location implements JavaFileManager.Location {
+        /**
+         * Location of new documentation files.
+         */
+        DOCUMENTATION_OUTPUT,
+
+        /**
+         * Location to search for doclets.
+         */
+        DOCLET_PATH,
+
+        /**
+         * Location to search for taglets.
+         */
+        TAGLET_PATH;
+
+        public String getName() { return name(); }
+
+        public boolean isOutputLocation() {
+            switch (this) {
+                case DOCUMENTATION_OUTPUT:
+                    return true;
+                default:
+                    return false;
+            }
+        }
+    }
+
+}