[metaas-dev] Re: statements

[Sergey Akopkokhyants]

Hi, David!
 I need investigate method's content and find service name. Service name
every time will be in one of place and find it not difficult:
this.service = ServiceLocator.getInstance().getService("*CallMeService*");
I did next:
1) I add:
- uk.co.badgersinfoil.metaas.dom.ASMethod
    *public ASTStatementList getStmt();*
- uk.co.badgersinfoil.metaas.impl.ASTASMethod (Implementation);
    *public ASTStatementList getStmt()
    {
        return this.stmtList;
    }*
And implement in my code information reader from *ASTStatementList*.
2) In my business method invoke new one:
    *// Find Service name
*    *// TODO: Use Implement read method statement from MetAS in Future
*    *ASTStatementList stmts = method.getStmt(); // My hack method for take
method content
*    *serviceName = findServiceName(stmts);
*
3) This is information reader method:
    private String findServiceName(ASTStatementList stmts)
    {
        String result = null;
        LinkedListTree linkedListTree = stmts.getAST();
        LinkedListToken currentListToken = linkedListTree.getStartToken();
        LinkedListToken stopListToken = linkedListTree.getStopToken();
        List lines = new ArrayList();
        StringBuffer sb = new StringBuffer();
        String tonk = currentListToken.getText();
        while ( (currentListToken = currentListToken.getNext()) != null)
        {
            if (currentListToken.equals(stopListToken))
            {
                if ( (sb.toString().length() > 0) &&
(!sb.toString().equals(";")) )
                        lines.add(sb.toString());
                break;
            }
            System.out.print(tonk);
            sb.append(tonk);
            tonk = currentListToken.getText();
            if (tonk.equals(";"))
            {
                lines.add(sb.toString());
                sb = new StringBuffer();
            }
        };
        System.out.println();
        for (int j = 0; j < lines.size(); j++)
        {
            String str = lines.get(j).toString();
            System.out.println(str);
            int offs = str.indexOf("getService(\"");
            if (offs != -1)
            {
                offs += "getService(\"".length();
                // Found
                int offe = str.indexOf("\"", offs);
                if (offe != -1)
                {
                    result = str.substring(offs, offe);
                }
            }
        }
        return result;
    }

It is working, but in the future I rewrite this code, after you finish.
Is this implementation right or not?

Sergey.
On 24/01/07, David Holroyd <dave at badgers-in-foil.co.uk> wrote:
>
> On Wed, Jan 24, 2007 at 08:01:09AM +0200, Sergey Akopkokhyants wrote:
> > Is it possible take statements from method, because I need investigate
> > content of it? I can open the same file in another thread, but I it bad
> > idea.
>
> metaas doesn't provide read-access to statements in a method/block etc.
> yet, just write-access for code generation.
>
> The plan is for this to be included at some point, but it is quite a
> lot of work.
>
> What information specifically are you trying to get from the code?
>
>
>
> dave
>
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