public P getParser()

in src/java/org/apache/fulcrum/parser/DefaultParserService.java [262:347]
83 lines of code
19 McCabe index (conditional complexity)

    public <P extends ValueParser> P getParser(Class<P> ppClass) throws InstantiationException
    {
        P vp = null;

        try
        {
            if (useFulcrumPool) {
                try
                {
                    P parserInstance = (P) fulcrumPoolService.getInstance(ppClass);
                    vp = parserInstance;
                }
                catch (PoolException pe)
                {
                    throw new InstantiationException("Parser class '" + ppClass + "' is illegal. " + pe.getMessage());
                }
            } else if ( ppClass.equals(BaseValueParser.class) )
            {
            	BaseValueParser parserInstance = null;
				try {
				    parserInstance = valueParserPool.borrowObject();
					vp = (P) parserInstance;
					if (vp == null) {
                        throw new InstantiationException("Could not borrow object from pool: " + valueParserPool);
                    }
				} catch (Exception e) {
                    try {
                        valueParserPool.invalidateObject(parserInstance);
                        parserInstance = null;
                    } catch (Exception e1) {
                        throw new InstantiationException("Could not invalidate object " + e1.getMessage() + " after exception: " + e.getMessage());
                    }
				}
            } else if ( ppClass.equals(DefaultParameterParser.class) )
            {
                DefaultParameterParser parserInstance = null;
                try {
                    parserInstance = parameterParserPool.borrowObject();
                	vp = (P) parserInstance;
                	if (vp == null) {
                        throw new InstantiationException("Could not borrow object from pool: " + parameterParserPool);
                    }
                } catch (Exception e) {
                    try {
                        parameterParserPool.invalidateObject(parserInstance);
                        parserInstance = null;
                    } catch (Exception e1) {
                        throw new InstantiationException("Could not invalidate object " + e1.getMessage() + " after exception: " + e.getMessage());
                    }
                }
            } else if ( ppClass.equals(DefaultCookieParser.class) )
            {
                DefaultCookieParser parserInstance = null;
                try {
                    parserInstance = cookieParserPool.borrowObject();
                	vp = (P) parserInstance;
                    if (vp == null) {
                          throw new InstantiationException("Could not borrow object from pool: " + cookieParserPool);
                    }
                } catch (Exception e) {
                    try {
                        cookieParserPool.invalidateObject(parserInstance);
                        parserInstance = null;
                    } catch (Exception e1) {
                        throw new InstantiationException("Could not invalidate object " + e1.getMessage() + " after exception: " + e.getMessage());
                    }
                }
            }
            
            if (vp != null && vp instanceof ParserServiceSupport ) {
                ((ParserServiceSupport)vp).setParserService(this);
            } else {
                throw new InstantiationException("Could not set parser");
            }
            if (vp instanceof LogEnabled) 
            {
                ((LogEnabled)vp).enableLogging(getLogger().getChildLogger(ppClass.getSimpleName()));
            }
        }
        catch (ClassCastException x)
        {
            throw new InstantiationException("Parser class '" + ppClass + "' is illegal. " + x.getMessage());
        }

        return vp;
    }