public PersistentResourceList()

in src/main/java/org/apache/sling/installer/core/impl/PersistentResourceList.java [80:140]
54 lines of code
12 McCabe index (conditional complexity)

    public PersistentResourceList(final File dataFile, final InstallationListener listener) {
        this.dataFile = dataFile;
        this.listener = listener;

        Map<String, EntityResourceList> restoredData = null;
        List<RegisteredResource> unknownList = null;
        if ( dataFile.exists() ) {
            ObjectInputStream ois = null;
            try {
                ois = new ObjectInputStream(new BufferedInputStream(new FileInputStream(dataFile)));
                final int version = ois.readInt();
                if ( version > 0 && version <= VERSION ) {
                    restoredData = (Map<String, EntityResourceList>)ois.readObject();
                    if ( version == VERSION ) {
                        unknownList = (List<RegisteredResource>)ois.readObject();
                    }
                } else {
                    logger.warn("Unknown version for persistent resource list: {}", version);
                }
                logger.debug("Restored resource list: {}", restoredData);
                logger.debug("Restored unknown resource list: {}", unknownList);
            } catch (final Exception e) {
                logger.warn("Unable to restore data, starting with empty list (" + e.getMessage() + ")", e);
                restoredData = null;
                unknownList = null;
            } finally {
                if (ois != null) {
                    try {
                        ois.close();
                    } catch (final IOException ignore) {
                        // ignore
                    }
                }
            }
        }
        data = restoredData != null ? restoredData : new HashMap<String, EntityResourceList>();
        this.untransformedResources = unknownList != null ? unknownList : new ArrayList<RegisteredResource>();

        this.updateCache();

        // update resource ids
        for(final Map.Entry<String, EntityResourceList> entry : this.data.entrySet()) {
            final EntityResourceList erl = entry.getValue();
            erl.setResourceId(entry.getKey());
            erl.setListener(listener);
        }

        // check for special resources
        if ( this.getEntityResourceList(RESTART_ACTIVE_BUNDLES_ENTITY_ID) == null ) {
            final RegisteredResource rr = this.addOrUpdate(new InternalResource("$sling-installer$",
                            RESTART_ACTIVE_BUNDLES_ID,
                            null,
                            new Hashtable<String, Object>(),
                            InstallableResource.TYPE_PROPERTIES, "1",
                            null, null, null));
            final TransformationResult result = new TransformationResult();
            result.setId(RESTART_ACTIVE_BUNDLES_ID);
            result.setResourceType(RESTART_ACTIVE_BUNDLES_TYPE);
            this.transform(rr, new TransformationResult[] {result});
        }
    }