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https://issues.apache.org/jira/browse/TEXT-218?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17607250#comment-17607250
]
Tom Strijmeers commented on TEXT-218:
-------------------------------------
Hello [~ggregory],
you are absolutely right! I can't belief I looked over the
{{appendTo(Appendable)}} method.
Tom
> Add method writeTo(Writer):void to TextStringBuilder
> ----------------------------------------------------
>
> Key: TEXT-218
> URL: https://issues.apache.org/jira/browse/TEXT-218
> Project: Commons Text
> Issue Type: New Feature
> Affects Versions: 1.9
> Reporter: Tom Strijmeers
> Priority: Major
>
> It would be nice if the {{org.apache.commons.text.TextStringBuilder}} had
> methods to write its internal char buffer to a Writer. The opposite of the
> current {{readFrom(java.io.Reader):int}} and {{readFrom(java.io.Reader,
> int):int}} methods.
> The javadoc of {{org.apache.commons.text.TextStringBuilder}} states that
> "subclasses have direct access to character array". But that is only
> partially true in my opinion. The internal char array is private protected
> and the {{getBuffer():char[]}} method is package protected.
> Meaning that I could create a subclass but it has to be in the
> {{org.apache.commons.text}} package. And that's something I don't like doing.
> So giving the TextStringBuilder to ability to write out its internal buffer
> is a good alternative in my opinion.
> {code:java}
> /**
> * Writes all chars from the internal buffer directly to the provided
> {@link java.io.Writer} without making extra copies.
> *
> * @param writer Writer to write
> * @throws IOException if an I/O error occurs.
> */
> public void writeTo(Writer writer) throws IOException {
> if(length() == 0) {
> return;
> }
> writer.write(getBuffer(), 0, length());
> }
> /**
> * Writes a portion of the chars from the internal buffer directly to the
> provided {@link java.io.Writer} without making extra copies.
> *
> * @param writer Writer to write
> * @param offset Offset from which to start writing characters from the
> internal buffer
> * @param length Number of characters to write
> * @throws IOException if an I/O error occurs.
> * @throws StringIndexOutOfBoundsException if any of the following is
> true:
> * <ul>
> * <li>{@code offset} is
> negative</li>
> * <li>{@code offset} is greater
> than {@code this.length()}</li>
> * <li>{@code length} is
> negative</li>
> * <li>{@code length} is greater
> than {@code this.length()}</li>
> * <li>{@code offset} and {@code
> length} combined is greater than {@code this.length()}</li>
> * </ul>
> */
> public void writeTo(Writer writer, int offset, int length) throws
> IOException {
> if(offset < 0 || offset > length()) {
> throw new StringIndexOutOfBoundsException(offset);
> }
> if(length < 0 || length > length()) {
> throw new StringIndexOutOfBoundsException(length);
> }
> if((offset + length) > length()) {
> throw new StringIndexOutOfBoundsException(length);
> }
> if(length == 0) {
> return;
> }
> writer.write(getBuffer(), offset, length);
> }
> {code}
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