325N/A/*
325N/A * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
325N/A * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
325N/A *
325N/A * This code is free software; you can redistribute it and/or modify it
325N/A * under the terms of the GNU General Public License version 2 only, as
325N/A * published by the Free Software Foundation. Oracle designates this
325N/A * particular file as subject to the "Classpath" exception as provided
325N/A * by Oracle in the LICENSE file that accompanied this code.
325N/A *
325N/A * This code is distributed in the hope that it will be useful, but WITHOUT
325N/A * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
325N/A * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
325N/A * version 2 for more details (a copy is included in the LICENSE file that
325N/A * accompanied this code).
325N/A *
325N/A * You should have received a copy of the GNU General Public License version
325N/A * 2 along with this work; if not, write to the Free Software Foundation,
325N/A * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
325N/A *
325N/A * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
325N/A * or visit www.oracle.com if you need additional information or have any
325N/A * questions.
325N/A */
325N/A/*
325N/A * Copyright (C) 2004-2011
325N/A *
325N/A * Permission is hereby granted, free of charge, to any person obtaining a copy
325N/A * of this software and associated documentation files (the "Software"), to deal
325N/A * in the Software without restriction, including without limitation the rights
325N/A * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
325N/A * copies of the Software, and to permit persons to whom the Software is
325N/A * furnished to do so, subject to the following conditions:
325N/A *
325N/A * The above copyright notice and this permission notice shall be included in
325N/A * all copies or substantial portions of the Software.
325N/A *
325N/A * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
325N/A * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
325N/A * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
325N/A * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
325N/A * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
325N/A * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
325N/A * THE SOFTWARE.
325N/A */
325N/Apackage com.sun.xml.internal.rngom.parse.compact;
325N/A
325N/Aimport java.io.IOException;
325N/Aimport java.io.InputStream;
325N/Aimport java.io.InputStreamReader;
325N/Aimport java.io.PushbackInputStream;
325N/Aimport java.io.Reader;
325N/Aimport java.net.URL;
325N/A
325N/Aimport com.sun.xml.internal.rngom.ast.builder.BuildException;
325N/Aimport com.sun.xml.internal.rngom.ast.builder.IncludedGrammar;
325N/Aimport com.sun.xml.internal.rngom.ast.builder.SchemaBuilder;
325N/Aimport com.sun.xml.internal.rngom.ast.builder.Scope;
325N/Aimport com.sun.xml.internal.rngom.ast.om.ParsedPattern;
325N/Aimport com.sun.xml.internal.rngom.parse.IllegalSchemaException;
325N/Aimport com.sun.xml.internal.rngom.parse.Parseable;
325N/Aimport com.sun.xml.internal.rngom.xml.util.EncodingMap;
325N/Aimport org.xml.sax.ErrorHandler;
325N/Aimport org.xml.sax.InputSource;
325N/A
325N/A/**
325N/A * RELAX NG schema in the compact syntax.
325N/A */
325N/Apublic class CompactParseable implements Parseable {
325N/A private final InputSource in;
325N/A private final ErrorHandler eh;
325N/A
325N/A public CompactParseable(InputSource in, ErrorHandler eh) {
325N/A this.in = in;
325N/A this.eh = eh;
325N/A }
325N/A
325N/A public ParsedPattern parse(SchemaBuilder sb) throws BuildException, IllegalSchemaException {
325N/A ParsedPattern p = new CompactSyntax(this, makeReader(in), in.getSystemId(), sb, eh, "").parse(null);
325N/A return sb.expandPattern(p);
325N/A }
325N/A
325N/A public ParsedPattern parseInclude(String uri, SchemaBuilder sb, IncludedGrammar g, String inheritedNs)
325N/A throws BuildException, IllegalSchemaException {
325N/A InputSource tem = new InputSource(uri);
325N/A tem.setEncoding(in.getEncoding());
325N/A return new CompactSyntax(this, makeReader(tem), uri, sb, eh, inheritedNs).parseInclude(g);
325N/A }
325N/A
325N/A public ParsedPattern parseExternal(String uri, SchemaBuilder sb, Scope scope, String inheritedNs)
325N/A throws BuildException, IllegalSchemaException {
325N/A InputSource tem = new InputSource(uri);
325N/A tem.setEncoding(in.getEncoding());
325N/A return new CompactSyntax(this, makeReader(tem), uri, sb, eh, inheritedNs).parse(scope);
325N/A }
325N/A
325N/A private static final String UTF8 = EncodingMap.getJavaName("UTF-8");
325N/A private static final String UTF16 = EncodingMap.getJavaName("UTF-16");
325N/A
325N/A private static Reader makeReader(InputSource is) throws BuildException {
325N/A try {
325N/A Reader r = is.getCharacterStream();
325N/A if (r == null) {
325N/A InputStream in = is.getByteStream();
325N/A if (in == null) {
325N/A String systemId = is.getSystemId();
325N/A in = new URL(systemId).openStream();
325N/A }
325N/A String encoding = is.getEncoding();
325N/A if (encoding == null) {
325N/A PushbackInputStream pb = new PushbackInputStream(in, 2);
325N/A encoding = detectEncoding(pb);
325N/A in = pb;
325N/A }
325N/A r = new InputStreamReader(in, encoding);
325N/A }
325N/A return r;
325N/A }
325N/A catch (IOException e) {
325N/A throw new BuildException(e);
325N/A }
325N/A }
325N/A
325N/A static private String detectEncoding(PushbackInputStream in) throws IOException {
325N/A String encoding = UTF8;
325N/A int b1 = in.read();
325N/A if (b1 != -1) {
325N/A int b2 = in.read();
325N/A if (b2 != -1) {
325N/A in.unread(b2);
325N/A if ((b1 == 0xFF && b2 == 0xFE) || (b1 == 0xFE && b2 == 0xFF))
325N/A encoding = UTF16;
325N/A }
325N/A in.unread(b1);
325N/A }
325N/A return encoding;
325N/A }
325N/A}