Examples with JsonMapExpression org.beetl.core.statement.JsonMapExpression used on opensource projects

Example 1 with JsonMapExpression

use of org.beetl.core.statement.JsonMapExpression in project beetl2.0 by javamonkey.

the class AntlrProgramBuilder method parseJson.

protected Expression parseJson(JsonContext ctx) {
    if (ctx.LEFT_SQBR() != null) {
        // array
        JsonArrayExpression json = null;
        List<ExpressionContext> listCtx = ctx.expression();
        if (listCtx.size() == 0) {
            json = new JsonArrayExpression(Collections.EMPTY_LIST, this.getBTToken(ctx.LEFT_SQBR().getSymbol()));
        } else {
            List<Expression> list = new ArrayList<Expression>(listCtx.size());
            for (ExpressionContext expCtx : listCtx) {
                list.add(this.parseExpress(expCtx));
            }
            json = new JsonArrayExpression(list, this.getBTToken(ctx.LEFT_SQBR().getSymbol()));
        }
        return json;
    } else {
        // map
        JsonMapExpression json = null;
        List<JsonKeyValueContext> listCtx = ctx.jsonKeyValue();
        if (listCtx.size() == 0) {
            json = new JsonMapExpression(Collections.EMPTY_MAP, this.getBTToken(ctx.LEFT_BRACE().getSymbol()));
        } else {
            Map<String, Expression> map = new LinkedHashMap<String, Expression>(listCtx.size());
            for (JsonKeyValueContext kvCtx : listCtx) {
                String key = null;
                if (kvCtx.StringLiteral() != null) {
                    key = this.getStringValue(kvCtx.StringLiteral().getText());
                } else {
                    key = kvCtx.Identifier().getSymbol().getText();
                }
                Expression exp = this.parseExpress(kvCtx.expression());
                map.put(key, exp);
            }
            json = new JsonMapExpression(map, this.getBTToken(ctx.LEFT_BRACE().getSymbol()));
        }
        return json;
    }
}