Example usage for javax.swing.text.html HTMLEditorKit.ParserCallback HTMLEditorKit.ParserCallback

Introduction

In this page you can find the example usage for javax.swing.text.html HTMLEditorKit.ParserCallback HTMLEditorKit.ParserCallback.

Prototype

HTMLEditorKit.ParserCallback

Source Link

Usage

From source file:net.fenyo.mail4hotspot.tools.GenericTools.java

public static String html2Text(final String html) {
    try {//from   w w  w . ja v  a 2s .  co m
        final StringBuilder sb = new StringBuilder();
        HTMLEditorKit.ParserCallback parserCallback = new HTMLEditorKit.ParserCallback() {
            private boolean readyForNewline = false;
            private boolean headParsed = false; // viter l'entte (notamment titre et styles ventuels)

            @Override
            public void handleText(final char[] data, final int pos) {
                if (headParsed) {
                    sb.append(new String(data).trim());
                    readyForNewline = true;
                }
            }

            @Override
            public void handleStartTag(final HTML.Tag t, final MutableAttributeSet a, final int pos) {
                if (readyForNewline && (t == HTML.Tag.DIV || t == HTML.Tag.BR || t == HTML.Tag.P)) {
                    sb.append("\n");
                    readyForNewline = false;
                }
            }

            @Override
            public void handleEndTag(final HTML.Tag t, final int pos) {
                if (t == HTML.Tag.HEAD)
                    headParsed = true;
            }

            @Override
            public void handleSimpleTag(final HTML.Tag t, final MutableAttributeSet a, final int pos) {
                handleStartTag(t, a, pos);
            }
        };

        // dernier paramtre true, pour viter une exception ChangedCharSetException dans le cas o le charset est redfini au dbut du HTML par un lment du style <meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
        new ParserDelegator().parse(new StringReader(html), parserCallback, true);
        return sb.toString();
    } catch (final IOException ex) {
        log.error(ex);
        return null;
    }
}

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