private boolean removeAlias()

in src/main/java/org/apache/sling/resourceresolver/impl/mapping/MapEntries.java [441:505]
57 lines of code
19 McCabe index (conditional complexity)

    private boolean removeAlias(final String contentPath, final String path, final AtomicBoolean resolverRefreshed) {
        // if path is specified we first need to find out if it is
        // a direct child of vanity path but not jcr:content, or a jcr:content child of a direct child
        // otherwise we can discard the event
        boolean handle = true;
        String resourcePath = null;
        if ( path != null  && path.length() > contentPath.length()) {
            final String subPath = path.substring(contentPath.length() + 1);
            final int firstSlash = subPath.indexOf('/');
            if ( firstSlash == -1 ) {
                if ( subPath.equals(JCR_CONTENT) ) {
                    handle = false;
                }
                resourcePath = path;
            } else if ( subPath.lastIndexOf('/') == firstSlash) {
                if ( subPath.startsWith(JCR_CONTENT_PREFIX) || !subPath.endsWith(JCR_CONTENT_SUFFIX) ) {
                    handle = false;
                }
                resourcePath = ResourceUtil.getParent(path);
            } else {
                handle = false;
            }
        }
        else {
            resourcePath = contentPath;
        }
        if ( !handle ) {
            return false;
        }

        this.initializing.lock();
        try {
            final Map<String, String> aliasMapEntry = aliasMap.get(contentPath);
            if (aliasMapEntry != null) {
                this.refreshResolverIfNecessary(resolverRefreshed);

                for (Iterator<Map.Entry<String, String>> iterator = aliasMapEntry.entrySet().iterator(); iterator.hasNext(); ) {
                    final Map.Entry<String, String> entry = iterator.next();
                    String prefix = contentPath.endsWith("/") ? contentPath : contentPath + "/";
                    if ((prefix + entry.getValue()).startsWith(resourcePath)){
                        iterator.remove();
                    }
                }

                if (aliasMapEntry.isEmpty()) {
                    this.aliasMap.remove(contentPath);
                }

                Resource containingResource = this.resolver != null ? this.resolver.getResource(resourcePath) : null;

                if (containingResource != null) {
                    if (containingResource.getValueMap().containsKey(ResourceResolverImpl.PROP_ALIAS)) {
                        doAddAlias(containingResource);
                    }
                    final Resource child = containingResource.getChild(JCR_CONTENT);
                    if (child != null && child.getValueMap().containsKey(ResourceResolverImpl.PROP_ALIAS)) {
                        doAddAlias(child);
                    }
                }
            }
            return aliasMapEntry != null;
        } finally {
            this.initializing.unlock();
        }
    }