Mercurial > jdk8-mips64-public > langtools / file comparison
comparison: src/share/classes/com/sun/tools/javadoc/api/JavadocTaskImpl.java
src/share/classes/com/sun/tools/javadoc/api/JavadocTaskImpl.java
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| 1 /* | |
| 2 * Copyright (c) 2012, Oracle and/or its affiliates. All rights reserved. | |
| 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. | |
| 4 * | |
| 5 * This code is free software; you can redistribute it and/or modify it | |
| 6 * under the terms of the GNU General Public License version 2 only, as | |
| 7 * published by the Free Software Foundation. Oracle designates this | |
| 8 * particular file as subject to the "Classpath" exception as provided | |
| 9 * by Oracle in the LICENSE file that accompanied this code. | |
| 10 * | |
| 11 * This code is distributed in the hope that it will be useful, but WITHOUT | |
| 12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 14 * version 2 for more details (a copy is included in the LICENSE file that | |
| 15 * accompanied this code). | |
| 16 * | |
| 17 * You should have received a copy of the GNU General Public License version | |
| 18 * 2 along with this work; if not, write to the Free Software Foundation, | |
| 19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
| 20 * | |
| 21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA | |
| 22 * or visit www.oracle.com if you need additional information or have any | |
| 23 * questions. | |
| 24 */ | |
| 25 package com.sun.tools.javadoc.api; | |
| 26 | |
| 27 import com.sun.tools.javac.util.ClientCodeException; | |
| 28 import java.util.Locale; | |
| 29 import java.util.concurrent.atomic.AtomicBoolean; | |
| 30 | |
| 31 import javax.tools.DocumentationTool.DocumentationTask; | |
| 32 import javax.tools.JavaFileObject; | |
| 33 | |
| 34 import com.sun.tools.javac.util.Context; | |
| 35 import com.sun.tools.javadoc.Start; | |
| 36 import java.util.Collections; | |
| 37 | |
| 38 /** | |
| 39 * Provides access to functionality specific to the JDK documentation tool, | |
| 40 * javadoc. | |
| 41 * | |
| 42 * <p><b>This is NOT part of any supported API. | |
| 43 * If you write code that depends on this, you do so at your own | |
| 44 * risk. This code and its internal interfaces are subject to change | |
| 45 * or deletion without notice.</b></p> | |
| 46 */ | |
| 47 public class JavadocTaskImpl implements DocumentationTask { | |
| 48 private final AtomicBoolean used = new AtomicBoolean(); | |
| 49 | |
| 50 private final Context context; | |
| 51 private Class<?> docletClass; | |
| 52 private Iterable<String> options; | |
| 53 private Iterable<? extends JavaFileObject> fileObjects; | |
| 54 private Locale locale; | |
| 55 | |
| 56 public JavadocTaskImpl(Context context, Class<?> docletClass, | |
| 57 Iterable<String> options, Iterable<? extends JavaFileObject> fileObjects) { | |
| 58 this.context = context; | |
| 59 this.docletClass = docletClass; | |
| 60 | |
| 61 this.options = (options == null) ? Collections.<String>emptySet() | |
| 62 : nullCheck(options); | |
| 63 this.fileObjects = (fileObjects == null) ? Collections.<JavaFileObject>emptySet() | |
| 64 : nullCheck(fileObjects); | |
| 65 setLocale(Locale.getDefault()); | |
| 66 } | |
| 67 | |
| 68 public void setLocale(Locale locale) { | |
| 69 if (used.get()) | |
| 70 throw new IllegalStateException(); | |
| 71 this.locale = locale; | |
| 72 } | |
| 73 | |
| 74 public Boolean call() { | |
| 75 if (!used.getAndSet(true)) { | |
| 76 initContext(); | |
| 77 Start jdoc = new Start(context); | |
| 78 try { | |
| 79 return jdoc.begin(docletClass, options, fileObjects); | |
| 80 } catch (ClientCodeException e) { | |
| 81 throw new RuntimeException(e.getCause()); | |
| 82 } | |
| 83 } else { | |
| 84 throw new IllegalStateException("multiple calls to method 'call'"); | |
| 85 } | |
| 86 } | |
| 87 | |
| 88 private void initContext() { | |
| 89 //initialize compiler's default locale | |
| 90 context.put(Locale.class, locale); | |
| 91 } | |
| 92 | |
| 93 private static <T> Iterable<T> nullCheck(Iterable<T> items) { | |
| 94 for (T item: items) { | |
| 95 if (item == null) | |
| 96 throw new NullPointerException(); | |
| 97 } | |
| 98 return items; | |
| 99 } | |
| 100 } |
