Examples of org.drools.repository.PackageItem

org.drools.repository.PackageItem
A PackageItem object aggregates a set of assets (for example, rules). This is advantageous for systems using the JBoss Rules engine where the application might make use of many related rules.
A PackageItem refers to rule nodes within the RulesRepository. It contains the "master copy" of assets (which may be linked into other packages or other types of containers). This is a container "node". @author btruitt

        Feed f = factory.getAbdera().newFeed();
        f.setTitle("Packages");
        f.setBaseUri(uriInfo.getBaseUriBuilder().path("packages").build().toString());
        PackageIterator iter = repository.listPackages();
        while (iter.hasNext()) {
            PackageItem item = iter.next();
            Entry e = factory.getAbdera().newEntry();
            e.setTitle(item.getName());
            Link l = factory.newLink();
            l.setHref(uriInfo.getBaseUriBuilder().path("packages")
                    .path(item.getName()).build().toString());
            e.addLink(l);
            f.addEntry(e);
        }


        return f;

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    @POST
    @Consumes(MediaType.APPLICATION_ATOM_XML)
    @Produces(MediaType.APPLICATION_ATOM_XML)
    public Entry createPackageFromAtom(Entry entry) {
        try {
            PackageItem packageItem = repository.createPackage(entry.getTitle(), entry.getSummary());
            return ToPackageEntryAbdera(packageItem, uriInfo);
        } catch (Exception e) {
            //catch RulesRepositoryException and other exceptions. For example when the package already exists.
            throw new WebApplicationException(e);
        }

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    @POST
    @Consumes({MediaType.APPLICATION_JSON, MediaType.APPLICATION_XML})
    @Produces({MediaType.APPLICATION_JSON, MediaType.APPLICATION_XML})
    public Package createPackageFromJAXB(Package p) {
        try {
            PackageItem packageItem = repository.createPackage(p.getTitle(), p.getDescription());
            return ToPackage(packageItem, uriInfo);
        } catch (Exception e) {
            //catch RulesRepositoryException and other exceptions. For example when the package already exists.
            throw new WebApplicationException(e);
        }

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    @GET
    @Path("{packageName}")
    @Produces(MediaType.APPLICATION_ATOM_XML)
    public Entry getPackageAsEntry(@PathParam("packageName") String packageName) {
        try {
            PackageItem packageItem = repository.loadPackage(packageName);
            return ToPackageEntryAbdera(packageItem, uriInfo);
        } catch (Exception e) {
            //catch RulesRepositoryException and other exceptions. For example when the package does not exists.
            throw new WebApplicationException(e);
        }

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    @GET
    @Path("{packageName}")
    @Produces({MediaType.APPLICATION_JSON, MediaType.APPLICATION_XML})
    public Package getPackageAsJAXB(@PathParam("packageName") String packageName) {
        try {
            PackageItem packageItem = repository.loadPackage(packageName);
            return ToPackage(packageItem, uriInfo);
        } catch (Exception e) {
            //catch RulesRepositoryException and other exceptions. For example when the package does not exists.
            throw new WebApplicationException(e);
        }

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    @GET
    @Path("{packageName}/source")
    @Produces(MediaType.TEXT_PLAIN)
    public Response getPackageSource(@PathParam("packageName") String packageName) {
        try {
            PackageItem packageItem = repository.loadPackage(packageName);
            PackageDRLAssembler asm = new PackageDRLAssembler(packageItem);
            String drl = asm.getDRL();
            return Response.ok(drl).header("Content-Disposition", "attachment; filename=" + packageName).build();
        } catch (Exception e) {
            //catch RulesRepositoryException and other exceptions. For example when the package does not exists.

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    @GET
    @Path("{packageName}/binary")
    @Produces(MediaType.APPLICATION_OCTET_STREAM)
    public Response getPackageBinary(@PathParam("packageName") String packageName) throws SerializationException {
        try {
            PackageItem p = repository.loadPackage(packageName);
            String fileName = packageName + ".pkg";
            byte[] result;
            if (p.isBinaryUpToDate()) {
                result = p.getCompiledPackageBytes();
            } else {
                StringBuilder errs = new StringBuilder();
                BuilderResult builderResult = packageService.buildPackage(p.getUUID(), true);
                if (builderResult != null) {
                    errs.append("Unable to build package name [").append(packageName).append("]\n");
                    StringBuilder buf = createStringBuilderFrom(builderResult);
                    return Response.status(500).entity(buf.toString()).build();
                }

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    @GET
    @Path("{packageName}/versions")
    @Produces(MediaType.APPLICATION_ATOM_XML)
    public Feed getPackageVersionsAsFeed(@PathParam("packageName") String packageName) throws SerializationException {
        PackageItem p = repository.loadPackage(packageName);


        Factory factory = Abdera.getNewFactory();
        Feed f = factory.getAbdera().newFeed();
        f.setTitle("Version history of " + p.getName());
        f.setBaseUri(uriInfo.getBaseUriBuilder().path("packages").build().toString());
        PackageHistoryIterator it = p.getHistory();


        while (it.hasNext()) {
            try {
                PackageItem historicalPackage = it.next();
                if (historicalPackage.getVersionNumber() != 0) {
                    Entry e = factory.getAbdera().newEntry();
                    e.setTitle(Long.toString(historicalPackage
                            .getVersionNumber()));
                    e.setUpdated(historicalPackage.getLastModified().getTime());
                    Link l = factory.newLink();
                    l.setHref(uriInfo
                            .getBaseUriBuilder()
                            .path("packages")
                            .path(p.getName())
                            .path("versions")
                            .path(Long.toString(historicalPackage.getVersionNumber())).build().toString());
                    e.addLink(l);
                    f.addEntry(e);
                }
            } catch (Exception e) {
                throw new WebApplicationException(e);

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    @GET
    @Path("{packageName}/versions/{versionNumber}/source")
    @Produces(MediaType.TEXT_PLAIN)
    public Response getHistoricalPackageSource(@PathParam("packageName") String packageName,
                                               @PathParam("versionNumber") long versionNumber) {
        PackageItem item = repository.loadPackage(packageName, versionNumber);
        PackageDRLAssembler asm = new PackageDRLAssembler(item);
        String drl = asm.getDRL();
        return Response.ok(drl).header("Content-Disposition", "attachment; filename=" + packageName).build();
    }

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    @GET
    @Path("{packageName}/versions/{versionNumber}/binary")
    @Produces(MediaType.APPLICATION_OCTET_STREAM)
    public Response getHistoricalPackageBinary(@PathParam("packageName") String packageName,
                                               @PathParam("versionNumber") long versionNumber) throws SerializationException {
        PackageItem p = repository.loadPackage(packageName, versionNumber);
        byte[] result = p.getCompiledPackageBytes();
        if (result != null) {
            String fileName = packageName + ".pkg";
            return Response.ok(result).header("Content-Disposition", "attachment; filename=" + fileName).build();
        } else {
            return Response.status(500).entity("This package version has no compiled binary").type("text/plain").build();

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