JAXB API Source Code

Java Architecture for XML Binding (JAXB) is a Java API that allows Java developers to map Java classes to XML representations.

jaxb-api-2.3.1.jar is the JAR file for the JAXB API 2.3 specification. You can download and use it directly without any building process as shown in the last tutorial.

If you want to rebuild the JAR file, you can download the source code at JAXB API Maven Website.

You can also browse the source code below:

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javax/xml/bind/annotation/adapters/CollapsedStringAdapter.java

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 * and Distribution License("CDDL") (collectively, the "License").  You
 * may not use this file except in compliance with the License.  You can
 * obtain a copy of the License at
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 * or LICENSE.txt.  See the License for the specific
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package javax.xml.bind.annotation.adapters;



/**
 * Built-in {@link XmlAdapter} to handle {@code xs:token} and its derived types.
 *
 * <p>
 * This adapter removes leading and trailing whitespaces, then truncate any
 * sequence of tab, CR, LF, and SP by a single whitespace character ' '.
 *
 * @author Kohsuke Kawaguchi
 * @since 1.6, JAXB 2.0
 */
public class CollapsedStringAdapter extends XmlAdapter<String,String> {
    /**
     * Removes leading and trailing whitespaces of the string
     * given as the parameter, then truncate any
     * sequence of tab, CR, LF, and SP by a single whitespace character ' '.
     */
    public String unmarshal(String text) {
        if(text==null)  return null;        // be defensive

        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.toString();
    }

    /**
     * No-op.
     *
     * Just return the same string given as the parameter.
     */
    public String marshal(String s) {
        return s;
    }


    /** returns true if the specified char is a white space character. */
    protected static 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;
    }
}

javax/xml/bind/annotation/adapters/CollapsedStringAdapter.java

 

Or download all of them as a single archive file:

File name: jaxb-api-2.3.1-sources.jar
File size: 271123 bytes
Release date: 2018-10-10
Download 

 

Download JAXB 2.2 Specification and API JAR

Download JAXB 2.3 Specification and API JAR

JAXB (Java Architecture for XML Binding) API Specification

⇑⇑ FAQ for jaxb-*.jar - Java Architecture for XML Binding

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