protected void addMatchingBundles()

in bundle/src/main/java/org/apache/karaf/cellar/bundle/shell/BundleCommandSupport.java [71:195]
104 lines of code
27 McCabe index (conditional complexity)

    protected void addMatchingBundles(String nameId, List<String> bundles, Map<String, ExtendedBundleState> clusterBundles) {

        // id is a number
        Pattern pattern = Pattern.compile("^\\d+$");
        Matcher matcher = pattern.matcher(nameId);
        if (matcher.matches()) {
            int id = Integer.parseInt(nameId);
            for (String bundle : clusterBundles.keySet()) {
                if (clusterBundles.get(bundle).getId() == id) {
                    bundles.add(bundle);
                    break;
                }
            }
            return;
        }

        // id as a number range
        pattern = Pattern.compile("^(\\d+)-(\\d+)$");
        matcher = pattern.matcher(nameId);
        if (matcher.matches()) {
            int index = nameId.indexOf('-');
            long startId = Long.parseLong(nameId.substring(0, index));
            long endId = Long.parseLong(nameId.substring(index + 1));
            if (startId < endId) {
                int bundleIndex = 0;
                for (String bundle : clusterBundles.keySet()) {
                    if (bundleIndex >= startId && bundleIndex <= endId) {
                        bundles.add(bundle);
                    }
                    bundleIndex++;
                }
            }
            return;
        }

        int index = nameId.indexOf('/');
        if (index != -1) {
            // id is name/version
            String[] idSplit = nameId.split("/");
            String name = idSplit[0];
            String version = idSplit[1];
            for (String bundle : clusterBundles.keySet()) {
                String[] bundleSplit = bundle.split("/");
                if (bundleSplit[1].equals(version)) {
                    // regex on the name
                    Pattern namePattern = Pattern.compile(name);
                    BundleState state = clusterBundles.get(bundle);
                    if (state.getName() != null) {
                        // bundle name is populated, check if it matches the regex
                        matcher = namePattern.matcher(state.getName());
                        if (matcher.matches()) {
                            bundles.add(bundle);
                        } else {
                            // no match on bundle name, fall back to id and check if it matches the regex
                            matcher = namePattern.matcher(bundleSplit[0]);
                            if (matcher.matches()) {
                                bundles.add(bundle);
                            }
                        }
                    } else if (state.getSymbolicName() != null) {
                        // bundle symbolic name is populated, check if it matches the regex
                        matcher = namePattern.matcher(state.getSymbolicName());
                        if (matcher.matches()) {
                            bundles.add(bundle);
                        } else {
                            // no match on bundle symbolic name, fall back to id and check if it matches the regex
                            matcher = namePattern.matcher(bundleSplit[0]);
                            if (matcher.matches()) {
                                bundles.add(bundle);
                            }
                        }
                    } else {
                        // no bundle name, fall back to id and check if it matches the regex
                        matcher = namePattern.matcher(bundleSplit[0]);
                        if (matcher.matches()) {
                            bundles.add(bundle);
                        }
                    }
                }
            }
            return;
        }

        // id is just name
        // regex support on the name
        Pattern namePattern = Pattern.compile(nameId);
        // looking for bundle using only the name
        for (String bundle : clusterBundles.keySet()) {
            BundleState state = clusterBundles.get(bundle);
            if (state.getName() != null) {
                // bundle name is populated, check if it matches the regex
                matcher = namePattern.matcher(state.getName());
                if (matcher.matches()) {
                    bundles.add(bundle);
                } else {
                    // no match on bundle name, fall back to id and check if it matches the regex
                    String[] idSplit = bundle.split("/");
                    matcher = namePattern.matcher(idSplit[0]);
                    if (matcher.matches()) {
                        bundles.add(bundle);
                    }
                }
            } else if (state.getSymbolicName() != null) {
                // bundle symbolic name is populated, check if it matches the regex
                matcher = namePattern.matcher(state.getSymbolicName());
                if (matcher.matches()) {
                    bundles.add(bundle);
                } else {
                    // no match on bundle symbolic name, fall back to id and check if it matches the regex
                    String[] idSplit = bundle.split("/");
                    matcher = namePattern.matcher(idSplit[0]);
                    if (matcher.matches()) {
                        bundles.add(bundle);
                    }
                }
            } else {
                // no bundle name, fall back to id and check if it matches the regex
                String[] idSplit = bundle.split("/");
                matcher = namePattern.matcher(idSplit[0]);
                if (matcher.matches()) {
                    bundles.add(bundle);
                }
            }
        }
    }