private boolean doUpdateAlias()

in src/main/java/org/apache/sling/resourceresolver/impl/mapping/MapEntries.java [578:617]
34 lines of code
12 McCabe index (conditional complexity)

    private boolean doUpdateAlias(final Resource resource) {
        final Resource containingResource;
        if (JCR_CONTENT.equals(resource.getName())) {
            containingResource = resource.getParent();
        } else {
            containingResource = resource;
        }

        if ( containingResource != null ) {
            final String containingResourceName = containingResource.getName();
            final String parentPath = ResourceUtil.getParent(containingResource.getPath());

            final Map<String, String> aliasMapEntry = parentPath == null ? null : aliasMap.get(parentPath);
            if (aliasMapEntry != null) {
                for (Iterator<Map.Entry<String, String>> iterator = aliasMapEntry.entrySet().iterator(); iterator.hasNext(); ) {
                    final Map.Entry<String, String> entry = iterator.next();
                    if (containingResourceName.equals(entry.getValue())){
                        iterator.remove();
                    }
                }
            }

            if (aliasMapEntry != null && aliasMapEntry.isEmpty()) {
                this.aliasMap.remove(parentPath);
            }

            boolean changed = aliasMapEntry != null;

            if ( containingResource.getValueMap().containsKey(ResourceResolverImpl.PROP_ALIAS) ) {
                changed |= doAddAlias(containingResource);
            }
            final Resource child = containingResource.getChild(JCR_CONTENT);
            if ( child != null && child.getValueMap().containsKey(ResourceResolverImpl.PROP_ALIAS) ) {
                changed |= doAddAlias(child);
            }

            return changed;
        }
        return false;
    }