public void doTag()

in jelly-tags/validate/src/main/java/org/apache/commons/jelly/tags/validate/VerifierTag.java [61:113]
48 lines of code
12 McCabe index (conditional complexity)

    public void doTag(final XMLOutput output) throws MissingAttributeException, JellyTagException {
        if ( var == null ) {
            throw new MissingAttributeException("var");
        }

        InputStream in = null;
        if ( uri != null ) {
            in = context.getResourceAsStream( uri );
            if ( in == null ) {
                throw new JellyTagException( "Could not find resource for uri: " + uri );
            }
        } else if (file != null) {
            try {
                in = new FileInputStream(file);
            } catch (FileNotFoundException e) {
                throw new JellyTagException(e);
            }
        } else {
            String text = getBodyText();
            in = new ByteArrayInputStream( text.getBytes() );
        }

        Verifier verifier = null;
        try {
            Schema schema = null;
            if (systemId != null) {
                schema = getFactory().compileSchema(in, systemId);
            }
            else if ( uri != null ) {
                schema = getFactory().compileSchema(in, uri);
            }
            else{
                schema = getFactory().compileSchema(in);
            }

            if ( schema == null ) {
                throw new JellyTagException( "Could not create a valid schema" );
            }

            verifier = schema.newVerifier();
        }
        catch (VerifierConfigurationException e) {
            throw new JellyTagException(e);
        }
        catch (SAXException e) {
            throw new JellyTagException(e);
        }
        catch (IOException e) {
            throw new JellyTagException(e);
        }

        context.setVariable(var, verifier);
    }