1/*
2 * Copyright (c) 1997, 2013, 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
26package com.sun.xml.internal.ws.message;
27
28import com.sun.xml.internal.ws.api.message.AttachmentSet;
29import com.sun.xml.internal.ws.api.message.Attachment;
30
31import java.util.ArrayList;
32import java.util.Iterator;
33
34/**
35 * Default dumb {@link AttachmentSet} implementation backed by {@link ArrayList}.
36 *
37 * <p>
38 * The assumption here is that the number of attachments are small enough to
39 * justify linear search in {@link #get(String)}.
40 *
41 * @author Kohsuke Kawaguchi
42 */
43public final class AttachmentSetImpl implements AttachmentSet {
44
45    private final ArrayList<Attachment> attList = new ArrayList<Attachment>();
46
47    /**
48     * Creates an empty {@link AttachmentSet}.
49     */
50    public AttachmentSetImpl() {
51    }
52
53    /**
54     * Creates an {@link AttachmentSet} by copying contents from another.
55     */
56    public AttachmentSetImpl(Iterable<Attachment> base) {
57        for (Attachment a : base)
58            add(a);
59    }
60
61    public Attachment get(String contentId) {
62        for( int i=attList.size()-1; i>=0; i-- ) {
63            Attachment a = attList.get(i);
64            if(a.getContentId().equals(contentId))
65                return a;
66        }
67        return null;
68    }
69
70    public boolean isEmpty() {
71        return attList.isEmpty();
72    }
73
74    public void add(Attachment att) {
75        attList.add(att);
76    }
77
78    public Iterator<Attachment> iterator() {
79        return attList.iterator();
80    }
81
82}
83