public synchronized void addProcessor()

in src/main/java/org/apache/xml/security/stax/impl/InputProcessorChainImpl.java [87:169]
76 lines of code
24 McCabe index (conditional complexity)

    public synchronized void addProcessor(InputProcessor newInputProcessor) {
        int startPhaseIdx = 0;
        int endPhaseIdx = inputProcessors.size();

        XMLSecurityConstants.Phase targetPhase = newInputProcessor.getPhase();

        for (int i = inputProcessors.size() - 1; i >= 0; i--) {
            InputProcessor inputProcessor = inputProcessors.get(i);
            if (inputProcessor.getPhase().ordinal() > targetPhase.ordinal()) {
                startPhaseIdx = i + 1;
                break;
            }
        }
        for (int i = startPhaseIdx; i < inputProcessors.size(); i++) {
            InputProcessor inputProcessor = inputProcessors.get(i);
            if (inputProcessor.getPhase().ordinal() < targetPhase.ordinal()) {
                endPhaseIdx = i;
                break;
            }
        }

        //just look for the correct phase and append as last
        if (newInputProcessor.getBeforeProcessors().isEmpty()
                && newInputProcessor.getAfterProcessors().isEmpty()) {
            inputProcessors.add(startPhaseIdx, newInputProcessor);
        } else if (newInputProcessor.getBeforeProcessors().isEmpty()) {
            int idxToInsert = startPhaseIdx;

            for (int i = endPhaseIdx - 1; i >= startPhaseIdx; i--) {
                InputProcessor inputProcessor = inputProcessors.get(i);
                if (newInputProcessor.getAfterProcessors().contains(inputProcessor)
                        || newInputProcessor.getAfterProcessors().contains(inputProcessor.getClass().getName())) {
                    idxToInsert = i;
                    break;
                }
            }
            inputProcessors.add(idxToInsert, newInputProcessor);
        } else if (newInputProcessor.getAfterProcessors().isEmpty()) {
            int idxToInsert = endPhaseIdx;

            for (int i = startPhaseIdx; i < endPhaseIdx; i++) {
                InputProcessor inputProcessor = inputProcessors.get(i);
                if (newInputProcessor.getBeforeProcessors().contains(inputProcessor)
                        || newInputProcessor.getBeforeProcessors().contains(inputProcessor.getClass().getName())) {
                    idxToInsert = i + 1;
                    break;
                }
            }
            inputProcessors.add(idxToInsert, newInputProcessor);
        } else {
            boolean found = false;
            int idxToInsert = startPhaseIdx;

            for (int i = endPhaseIdx - 1; i >= startPhaseIdx; i--) {
                InputProcessor inputProcessor = inputProcessors.get(i);
                if (newInputProcessor.getAfterProcessors().contains(inputProcessor)
                        || newInputProcessor.getAfterProcessors().contains(inputProcessor.getClass().getName())) {
                    idxToInsert = i;
                    found = true;
                    break;
                }
            }
            if (found) {
                inputProcessors.add(idxToInsert, newInputProcessor);
            } else {
                for (int i = startPhaseIdx; i < endPhaseIdx; i++) {
                    InputProcessor inputProcessor = inputProcessors.get(i);
                    if (newInputProcessor.getBeforeProcessors().contains(inputProcessor)
                            || newInputProcessor.getBeforeProcessors().contains(inputProcessor.getClass().getName())) {
                        idxToInsert = i + 1;
                        break;
                    }
                }
                inputProcessors.add(idxToInsert, newInputProcessor);
            }
        }
        if (LOG.isLoggable(Level.DEBUG)) {
            LOG.log(Level.DEBUG, "Added {0} to input chain: ", newInputProcessor.getClass().getName());
            for (InputProcessor inputProcessor : inputProcessors) {
                LOG.log(Level.DEBUG, "Name: {0} phase: {1}", inputProcessor.getClass().getName(), inputProcessor.getPhase());
            }
        }
    }