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.encoding.fastinfoset;
27
28import com.sun.xml.internal.fastinfoset.stax.StAXDocumentParser;
29import com.sun.xml.internal.ws.api.streaming.XMLStreamReaderFactory;
30import java.io.InputStream;
31import java.io.Reader;
32import javax.xml.stream.XMLStreamReader;
33
34/**
35 * @author Alexey Stashok
36 */
37public final class FastInfosetStreamReaderFactory extends XMLStreamReaderFactory {
38    private static final FastInfosetStreamReaderFactory factory = new FastInfosetStreamReaderFactory();
39
40    private ThreadLocal<StAXDocumentParser> pool = new ThreadLocal<StAXDocumentParser>();
41
42    public static FastInfosetStreamReaderFactory getInstance() {
43        return factory;
44    }
45
46    public XMLStreamReader doCreate(String systemId, InputStream in, boolean rejectDTDs) {
47        StAXDocumentParser parser = fetch();
48        if (parser == null) {
49            return FastInfosetCodec.createNewStreamReaderRecyclable(in, false);
50        }
51
52        parser.setInputStream(in);
53        return parser;
54    }
55
56    public XMLStreamReader doCreate(String systemId, Reader reader, boolean rejectDTDs) {
57        throw new UnsupportedOperationException();
58    }
59
60    private StAXDocumentParser fetch() {
61        StAXDocumentParser parser = pool.get();
62        pool.set(null);
63        return parser;
64    }
65
66    public void doRecycle(XMLStreamReader r) {
67        if (r instanceof StAXDocumentParser) {
68            pool.set((StAXDocumentParser) r);
69        }
70    }
71}
72