133 lines
4.4 KiB
Java
Executable File
133 lines
4.4 KiB
Java
Executable File
/*
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* @(#)AnnotationProcessors.java 1.2 04/06/21
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*
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* Copyright (c) 2004, Sun Microsystems, Inc.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* * Neither the name of the Sun Microsystems, Inc. nor the names of
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* its contributors may be used to endorse or promote products derived from
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* this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
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* IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
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* PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER
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* OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
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* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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package com.sun.mirror.apt;
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import com.sun.mirror.apt.*;
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import java.util.*;
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/**
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* Utilities to create specialized annotation processors.
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*
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* @author Joseph D. Darcy
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* @author Scott Seligman
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* @since 1.5
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*/
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public class AnnotationProcessors {
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static class NoOpAP implements AnnotationProcessor {
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NoOpAP() {
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}
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public void process() {
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}
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}
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/**
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* Combines multiple annotation processors into a simple composite
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* processor.
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* The composite processor functions by invoking each of its component
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* processors in sequence.
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*/
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static class CompositeAnnotationProcessor implements AnnotationProcessor {
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private List<AnnotationProcessor> aps =
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new LinkedList<AnnotationProcessor>();
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/**
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* Constructs a new composite annotation processor.
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*
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* @param aps the component annotation processors
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*/
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public CompositeAnnotationProcessor(Collection<AnnotationProcessor> aps) {
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this.aps.addAll(aps);
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}
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/**
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* Constructs a new composite annotation processor.
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*
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* @param aps the component annotation processors
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*/
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public CompositeAnnotationProcessor(AnnotationProcessor... aps) {
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for (AnnotationProcessor ap : aps)
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this.aps.add(ap);
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}
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/**
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* Invokes the <tt>process</tt> method of each component processor,
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* in the order in which the processors were passed to the constructor.
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*/
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public void process() {
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for (AnnotationProcessor ap : aps)
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ap.process();
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}
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}
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/**
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* An annotation processor that does nothing and has no state.
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* May be used multiple times.
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*
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* @since 1.5
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*/
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public final static AnnotationProcessor NO_OP = new NoOpAP();
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/**
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* Constructs a new composite annotation processor. A composite
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* annotation processor combines multiple annotation processors
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* into one and functions by invoking each of its component
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* processors' process methods in sequence.
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*
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* @param aps The processors to create a composite of
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* @since 1.5
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*/
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public static AnnotationProcessor getCompositeAnnotationProcessor(AnnotationProcessor... aps) {
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return new CompositeAnnotationProcessor(aps);
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}
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/**
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* Constructs a new composite annotation processor. A composite
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* annotation processor combines multiple annotation processors
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* into one and functions by invoking each of its component
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* processors' process methods in the sequence the processors are
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* returned by the collection's iterator.
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*
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* @param aps A collection of processors to create a composite of
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* @since 1.5
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*/
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public static AnnotationProcessor getCompositeAnnotationProcessor(Collection<AnnotationProcessor> aps) {
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return new CompositeAnnotationProcessor(aps);
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}
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}
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