jdk8-mips64-public/jaxws: src/share/jaxws_classes/javax/xml/bind/WhiteSpaceProcessor.java@f50545b5e2f1 (annotated)

src/share/jaxws_classes/javax/xml/bind/WhiteSpaceProcessor.java@f50545b5e2f1 (annotated)

src/share/jaxws_classes/javax/xml/bind/WhiteSpaceProcessor.java

Tue, 06 Mar 2012 16:09:35 -0800

author: ohair
date: Tue, 06 Mar 2012 16:09:35 -0800
changeset 286: f50545b5e2f1
child 397: b99d7e355d4b
permissions: -rw-r--r--

7150322: Stop using drop source bundles in jaxws
Reviewed-by: darcy, ohrstrom

 /*
  * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
  * under the terms of the GNU General Public License version 2 only, as
  * published by the Free Software Foundation.  Oracle designates this
  * particular file as subject to the "Classpath" exception as provided
  * by Oracle in the LICENSE file that accompanied this code.
  *
  * This code is distributed in the hope that it will be useful, but WITHOUT
  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  * version 2 for more details (a copy is included in the LICENSE file that
  * accompanied this code).
  *
  * You should have received a copy of the GNU General Public License version
  * 2 along with this work; if not, write to the Free Software Foundation,
  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  *
  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  * or visit www.oracle.com if you need additional information or have any
  * questions.
  */
 package javax.xml.bind;
 /**
  * Processes white space normalization.
  *
  * @since 1.0
  */
 abstract class WhiteSpaceProcessor {
 // benchmarking (see test/src/ReplaceTest.java in the CVS Attic)
 // showed that this code is slower than the current code.
 //
 //    public static String replace(String text) {
 //        final int len = text.length();
 //        StringBuffer result = new StringBuffer(len);
 //
 //        for (int i = 0; i < len; i++) {
 //            char ch = text.charAt(i);
 //            if (isWhiteSpace(ch))
 //                result.append(' ');
 //            else
 //                result.append(ch);
 //        }
 //
 //        return result.toString();
 //    }
     public static String replace(String text) {
         return replace( (CharSequence)text ).toString();
     }
     /**
      * @since 2.0
      */
     public static CharSequence replace(CharSequence text) {
         int i=text.length()-1;
         // look for the first whitespace char.
         while( i>=0 && !isWhiteSpaceExceptSpace(text.charAt(i)) )
             i--;
         if( i<0 )
             // no such whitespace. replace(text)==text.
             return text;
         // we now know that we need to modify the text.
         // allocate a char array to do it.
         StringBuilder buf = new StringBuilder(text);
         buf.setCharAt(i--,' ');
         for( ; i>=0; i-- )
             if( isWhiteSpaceExceptSpace(buf.charAt(i)))
                 buf.setCharAt(i,' ');
         return new String(buf);
     }
     /**
      * Equivalent of {@link String#trim()}.
      * @since 2.0
      */
     public static CharSequence trim(CharSequence text) {
         int len = text.length();
         int start = 0;
         while( start<len && isWhiteSpace(text.charAt(start)) )
             start++;
         int end = len-1;
         while( end>start && isWhiteSpace(text.charAt(end)) )
             end--;
         if(start==0 && end==len-1)
             return text;    // no change
         else
             return text.subSequence(start,end+1);
     }
     public static String collapse(String text) {
         return collapse( (CharSequence)text ).toString();
     }
     /**
      * This is usually the biggest processing bottleneck.
      *
      * @since 2.0
      */
     public static CharSequence collapse(CharSequence text) {
         int len = text.length();
         // most of the texts are already in the collapsed form.
         // so look for the first whitespace in the hope that we will
         // never see it.
         int s=0;
         while(s<len) {
             if(isWhiteSpace(text.charAt(s)))
                 break;
             s++;
         }
         if(s==len)
             // the input happens to be already collapsed.
             return text;
         // we now know that the input contains spaces.
         // let's sit down and do the collapsing normally.
         StringBuilder result = new StringBuilder(len /*allocate enough size to avoid re-allocation*/ );
         if(s!=0) {
             for( int i=0; i<s; i++ )
                 result.append(text.charAt(i));
             result.append(' ');
         }
         boolean inStripMode = true;
         for (int i = s+1; i < len; i++) {
             char ch = text.charAt(i);
             boolean b = isWhiteSpace(ch);
             if (inStripMode && b)
                 continue; // skip this character
             inStripMode = b;
             if (inStripMode)
                 result.append(' ');
             else
                 result.append(ch);
         }
         // remove trailing whitespaces
         len = result.length();
         if (len > 0 && result.charAt(len - 1) == ' ')
             result.setLength(len - 1);
         // whitespaces are already collapsed,
         // so all we have to do is to remove the last one character
         // if it's a whitespace.
         return result;
     }
     /**
      * Returns true if the specified string is all whitespace.
      */
     public static final boolean isWhiteSpace(CharSequence s) {
         for( int i=s.length()-1; i>=0; i-- )
             if(!isWhiteSpace(s.charAt(i)))
                 return false;
         return true;
     }
     /** returns true if the specified char is a white space character. */
     public static final boolean isWhiteSpace(char ch) {
         // most of the characters are non-control characters.
         // so check that first to quickly return false for most of the cases.
         if( ch>0x20 )   return false;
         // other than we have to do four comparisons.
         return ch == 0x9 || ch == 0xA || ch == 0xD || ch == 0x20;
     }
     /**
      * Returns true if the specified char is a white space character
      * but not 0x20.
      */
     protected static final boolean isWhiteSpaceExceptSpace(char ch) {
         // most of the characters are non-control characters.
         // so check that first to quickly return false for most of the cases.
         if( ch>=0x20 )   return false;
         // other than we have to do four comparisons.
         return ch == 0x9 || ch == 0xA || ch == 0xD;
     }
 }

Mercurial > jdk8-mips64-public > jaxws / annotate

src/share/jaxws_classes/javax/xml/bind/WhiteSpaceProcessor.java@f50545b5e2f1 (annotated)

src/share/jaxws_classes/javax/xml/bind/WhiteSpaceProcessor.java