1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/src/share/jaxws_classes/com/sun/tools/internal/ws/wsdl/parser/WhitespaceStripper.java Wed Apr 27 01:27:09 2016 +0800
1.3 @@ -0,0 +1,122 @@
1.4 +/*
1.5 + * Copyright (c) 1997, 2012, Oracle and/or its affiliates. All rights reserved.
1.6 + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
1.7 + *
1.8 + * This code is free software; you can redistribute it and/or modify it
1.9 + * under the terms of the GNU General Public License version 2 only, as
1.10 + * published by the Free Software Foundation. Oracle designates this
1.11 + * particular file as subject to the "Classpath" exception as provided
1.12 + * by Oracle in the LICENSE file that accompanied this code.
1.13 + *
1.14 + * This code is distributed in the hope that it will be useful, but WITHOUT
1.15 + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
1.16 + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
1.17 + * version 2 for more details (a copy is included in the LICENSE file that
1.18 + * accompanied this code).
1.19 + *
1.20 + * You should have received a copy of the GNU General Public License version
1.21 + * 2 along with this work; if not, write to the Free Software Foundation,
1.22 + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
1.23 + *
1.24 + * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
1.25 + * or visit www.oracle.com if you need additional information or have any
1.26 + * questions.
1.27 + */
1.28 +
1.29 +package com.sun.tools.internal.ws.wsdl.parser;
1.30 +
1.31 +import com.sun.xml.internal.bind.WhiteSpaceProcessor;
1.32 +import org.xml.sax.*;
1.33 +import org.xml.sax.helpers.XMLFilterImpl;
1.34 +
1.35 +/**
1.36 + * Strips ignorable whitespace from SAX event stream.
1.37 + *
1.38 + * <p>
1.39 + * This filter works only when the event stream doesn't
1.40 + * contain any mixed content.
1.41 + *
1.42 + * @author
1.43 + * Kohsuke Kawaguchi (kohsuke.kawaguchi@sun.com)
1.44 + * Vivek Pandey
1.45 + */
1.46 +class WhitespaceStripper extends XMLFilterImpl {
1.47 +
1.48 + private int state = 0;
1.49 +
1.50 + private char[] buf = new char[1024];
1.51 + private int bufLen = 0;
1.52 +
1.53 + private static final int AFTER_START_ELEMENT = 1;
1.54 + private static final int AFTER_END_ELEMENT = 2;
1.55 +
1.56 + public WhitespaceStripper(XMLReader reader) {
1.57 + setParent(reader);
1.58 + }
1.59 +
1.60 + public WhitespaceStripper(ContentHandler handler, ErrorHandler eh, EntityResolver er) {
1.61 + setContentHandler(handler);
1.62 + if(eh!=null) setErrorHandler(eh);
1.63 + if(er!=null) setEntityResolver(er);
1.64 + }
1.65 +
1.66 + public void characters(char[] ch, int start, int length) throws SAXException {
1.67 + switch(state) {
1.68 + case AFTER_START_ELEMENT:
1.69 + // we have to store the characters here, even if it consists entirely
1.70 + // of whitespaces. This is because successive characters event might
1.71 + // include non-whitespace char, in which case all the whitespaces in
1.72 + // this event may suddenly become significant.
1.73 + if( bufLen+length>buf.length ) {
1.74 + // reallocate buffer
1.75 + char[] newBuf = new char[Math.max(bufLen+length,buf.length*2)];
1.76 + System.arraycopy(buf,0,newBuf,0,bufLen);
1.77 + buf = newBuf;
1.78 + }
1.79 + System.arraycopy(ch,start,buf,bufLen,length);
1.80 + bufLen += length;
1.81 + break;
1.82 + case AFTER_END_ELEMENT:
1.83 + // check if this is ignorable.
1.84 + int len = start+length;
1.85 + for( int i=start; i<len; i++ )
1.86 + if( !WhiteSpaceProcessor.isWhiteSpace(ch[i]) ) {
1.87 + super.characters(ch, start, length);
1.88 + return;
1.89 + }
1.90 + // if it's entirely whitespace, ignore it.
1.91 + break;
1.92 + }
1.93 + }
1.94 +
1.95 + public void startElement(String uri, String localName, String qName, Attributes atts) throws SAXException {
1.96 + processPendingText();
1.97 + super.startElement(uri, localName, qName, atts);
1.98 + state = AFTER_START_ELEMENT;
1.99 + bufLen = 0;
1.100 + }
1.101 +
1.102 + public void endElement(String uri, String localName, String qName) throws SAXException {
1.103 + processPendingText();
1.104 + super.endElement(uri, localName, qName);
1.105 + state = AFTER_END_ELEMENT;
1.106 + }
1.107 +
1.108 + /**
1.109 + * Forwars the buffered characters if it contains any non-whitespace
1.110 + * character.
1.111 + */
1.112 + private void processPendingText() throws SAXException {
1.113 + if(state==AFTER_START_ELEMENT) {
1.114 + for( int i=bufLen-1; i>=0; i-- )
1.115 + if( !WhiteSpaceProcessor.isWhiteSpace(buf[i]) ) {
1.116 + super.characters(buf, 0, bufLen);
1.117 + return;
1.118 + }
1.119 + }
1.120 + }
1.121 +
1.122 + public void ignorableWhitespace(char[] ch, int start, int length) throws SAXException {
1.123 + // ignore completely.
1.124 + }
1.125 +}
