Examples of org.apache.isis.applib.services.exceprecog.ExceptionRecognizerComposite

Package org.apache.isis.applib.services.exceprecog

Examples of org.apache.isis.applib.services.exceprecog.ExceptionRecognizerComposite

org.apache.isis.applib.services.exceprecog.ExceptionRecognizerComposite
Convenience implementation of {@link ExceptionRecognizer} that loops through a list of{@link #add(ExceptionRecognizer) registered} services.
Note that the framework does allow multiple {@link ExceptionRecognizer service}s to be registered in isis.properties, and each will be consulted in turn. Therefore it is not necessary to use this class to register more than one such service. However, it may be useful to use to treat a group of similar exceptions as a single unit. For example, the JDO object store (in its applib) provides a set of {@link ExceptionRecognizer} torecognize various types of constraint violations. These are grouped together as a single set through the use of this class.

                return new MmvErrorPage(Model.ofList(validationErrors));
            }
            // not sure whether this can ever happen now...
            LOG.warn("Unable to obtain exceptionRecognizers (no session), will be treated as unrecognized exception");
        }
        String recognizedMessageIfAny = new ExceptionRecognizerComposite(exceptionRecognizers).recognize(ex);
        ExceptionModel exceptionModel = ExceptionModel.create(recognizedMessageIfAny, ex);
        
        if( isSignedIn()) {
            return new ErrorPage(exceptionModel);
        } else {

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            LOG.error("Failed to construct page, going back to sign in page", ex);
            
            // REVIEW: similar code in WebRequestCycleForIsis
            final  List<ExceptionRecognizer> exceptionRecognizers = getServicesInjector().lookupServices(ExceptionRecognizer.class);
            final String recognizedMessageIfAny = new ExceptionRecognizerComposite(exceptionRecognizers).recognize(ex);
            final ExceptionModel exceptionModel = ExceptionModel.create(recognizedMessageIfAny, ex);


            getSession().invalidate();
            getSession().clear();

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            exceptionRecognizers = getServicesInjector().lookupServices(ExceptionRecognizer.class);
        } catch(Exception ex2) {
            LOG.warn("Unable to obtain exceptionRecognizers (no session?)");
            exceptionRecognizers = Collections.emptyList();
        }
        final String recognizedMessageIfAny = new ExceptionRecognizerComposite(exceptionRecognizers).recognize(ex);
        return ExceptionModel.create(recognizedMessageIfAny, ex);
    }

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            LOG.error("Failed to construct page, going back to sign in page", ex);
            
            // REVIEW: similar code in WebRequestCycleForIsis
            final  List<ExceptionRecognizer> exceptionRecognizers = getServicesInjector().lookupServices(ExceptionRecognizer.class);
            final String recognizedMessageIfAny = new ExceptionRecognizerComposite(exceptionRecognizers).recognize(ex);
            final ExceptionModel exceptionModel = ExceptionModel.create(recognizedMessageIfAny, ex);


            getSession().invalidate();
            getSession().clear();

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            exceptionRecognizers = getServicesInjector().lookupServices(ExceptionRecognizer.class);
        } catch(Exception ex2) {
            LOG.warn("Unable to obtain exceptionRecognizers (no session?)");
            exceptionRecognizers = Collections.emptyList();
        }
        final String recognizedMessageIfAny = new ExceptionRecognizerComposite(exceptionRecognizers).recognize(ex);
        return ExceptionModel.create(recognizedMessageIfAny, ex);
    }

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        // REVIEW: similar code also in WebRequestCycleForIsis; combine?
        
        // see if the exception is recognized as being a non-serious error
        // (nb: similar code in WebRequestCycleForIsis, as a fallback)
        List<ExceptionRecognizer> exceptionRecognizers = getServicesInjector().lookupServices(ExceptionRecognizer.class);
        String recognizedErrorIfAny = new ExceptionRecognizerComposite(exceptionRecognizers).recognize(ex);
        if(recognizedErrorIfAny != null) {


            // recognized
            raiseWarning(target, feedbackForm, recognizedErrorIfAny);

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                return new MmvErrorPage(Model.ofList(validationErrors));
            }
            // not sure whether this can ever happen now...
            LOG.warn("Unable to obtain exceptionRecognizers (no session), will be treated as unrecognized exception");
        }
        String recognizedMessageIfAny = new ExceptionRecognizerComposite(exceptionRecognizers).recognize(ex);
        ExceptionModel exceptionModel = ExceptionModel.create(recognizedMessageIfAny, ex);
        
        return isSignedIn() ? new ErrorPage(exceptionModel) : new WicketSignInPage(null, exceptionModel);
    }

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        // REVIEW: this code is similar to stuff in EntityPropertiesForm, perhaps move up to superclass?
        // REVIEW: similar code also in WebRequestCycleForIsis; combine?
        
        final List<ExceptionRecognizer> exceptionRecognizers = getServicesInjector().lookupServices(ExceptionRecognizer.class);
        final String message = new ExceptionRecognizerComposite(exceptionRecognizers).recognize(ex);
        return message;
    }

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        // REVIEW: this code is similar to stuff in EntityPropertiesForm, perhaps move up to superclass?
        // REVIEW: similar code also in WebRequestCycleForIsis; combine?
        
        final List<ExceptionRecognizer> exceptionRecognizers = getServicesInjector().lookupServices(ExceptionRecognizer.class);
        final String message = new ExceptionRecognizerComposite(exceptionRecognizers).recognize(ex);
        return message;
    }

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            LOG.error("Failed to construct page, going back to sign in page", ex);
            
            // REVIEW: similar code in WebRequestCycleForIsis
            final  List<ExceptionRecognizer> exceptionRecognizers = getServicesInjector().lookupServices(ExceptionRecognizer.class);
            final String recognizedMessageIfAny = new ExceptionRecognizerComposite(exceptionRecognizers).recognize(ex);
            final ExceptionModel exceptionModel = ExceptionModel.create(recognizedMessageIfAny, ex);


            getSession().invalidate();
            getSession().clear();

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Related Classes of org.apache.isis.applib.services.exceprecog.ExceptionRecognizerComposite

org.apache.isis.viewer.wicket.ui.components.actions.ActionPanel

org.apache.isis.viewer.wicket.ui.components.entity.properties.EntityPropertiesForm

org.apache.isis.viewer.wicket.ui.pages.PageAbstract

org.apache.isis.viewer.wicket.viewer.integration.wicket.WebRequestCycleForIsis

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