Examples with Agent org.openremote.model.asset.agent.Agent used on opensource projects

Example 1 with Agent

use of org.openremote.model.asset.agent.Agent in project openremote by openremote.

the class AgentService method startAgent.

protected void startAgent(Agent<?, ?, ?> agent) {
    withLock(getClass().getSimpleName() + "::startAgent", () -> {
        Protocol<?> protocol = null;
        try {
            protocol = agent.getProtocolInstance();
            protocolInstanceMap.put(agent.getId(), protocol);
            LOG.fine("Starting protocol instance: " + protocol);
            protocol.start(container);
            LOG.fine("Started protocol instance:" + protocol);
            LOG.finer("Linking attributes to protocol instance: " + protocol);
            // Get all assets that have attributes with agent link meta for this agent
            List<Asset<?>> assets = assetStorageService.findAll(new AssetQuery().attributes(new AttributePredicate().meta(new NameValuePredicate(AGENT_LINK, new StringPredicate(agent.getId()), false, new NameValuePredicate.Path("id")))));
            LOG.finer("Found '" + assets.size() + "' asset(s) with attributes linked to this protocol instance: " + protocol);
            assets.forEach(asset -> getGroupedAgentLinkAttributes(asset.getAttributes().stream(), assetAttribute -> assetAttribute.getMetaValue(AGENT_LINK).map(agentLink -> agentLink.getId().equals(agent.getId())).orElse(false)).forEach((agnt, attributes) -> linkAttributes(agnt, asset.getId(), attributes)));
        } catch (Exception e) {
            if (protocol != null) {
                try {
                    protocol.stop(container);
                } catch (Exception ignored) {
                }
            }
            protocolInstanceMap.remove(agent.getId());
            LOG.log(Level.SEVERE, "Failed to start protocol instance for agent: " + agent, e);
            sendAttributeEvent(new AttributeEvent(agent.getId(), Agent.STATUS.getName(), ConnectionStatus.ERROR));
        }
    });
}

Example 2 with Agent

use of org.openremote.model.asset.agent.Agent in project openremote by openremote.

the class AbstractIOClientProtocol method getGenericStringEncodersAndDecoders.

/**
 * Supplies a set of encoders/decoders that convert from/to {@link String} to/from {@link ByteBuf} based on the generic protocol {@link Attribute}s
 */
public static Supplier<ChannelHandler[]> getGenericStringEncodersAndDecoders(AbstractNettyIOClient<String, ?> client, IOAgent<?, ?, ?> agent) {
    boolean hexMode = agent.getMessageConvertHex().orElse(false);
    boolean binaryMode = agent.getMessageConvertBinary().orElse(false);
    Charset charset = agent.getMessageCharset().map(Charset::forName).orElse(CharsetUtil.UTF_8);
    int maxLength = agent.getMessageMaxLength().orElse(Integer.MAX_VALUE);
    String[] delimiters = agent.getMessageDelimiters().orElse(new String[0]);
    boolean stripDelimiter = agent.getMessageStripDelimiter().orElse(false);
    return () -> {
        List<ChannelHandler> encodersDecoders = new ArrayList<>();
        if (hexMode || binaryMode) {
            encodersDecoders.add(new AbstractNettyIOClient.MessageToByteEncoder<>(String.class, client, (msg, out) -> {
                byte[] bytes = hexMode ? ProtocolUtil.bytesFromHexString(msg) : ProtocolUtil.bytesFromBinaryString(msg);
                out.writeBytes(bytes);
            }));
            if (delimiters.length > 0) {
                ByteBuf[] byteDelimiters = Arrays.stream(delimiters).map(delim -> Unpooled.wrappedBuffer(hexMode ? ProtocolUtil.bytesFromHexString(delim) : ProtocolUtil.bytesFromBinaryString(delim))).toArray(ByteBuf[]::new);
                encodersDecoders.add(new DelimiterBasedFrameDecoder(maxLength, stripDelimiter, byteDelimiters));
            } else {
                encodersDecoders.add(new FixedLengthFrameDecoder(maxLength));
            }
            // Incoming messages will be bytes
            encodersDecoders.add(new AbstractNettyIOClient.ByteToMessageDecoder<>(client, (byteBuf, messages) -> {
                byte[] bytes = new byte[byteBuf.readableBytes()];
                byteBuf.readBytes(bytes);
                String msg = hexMode ? ProtocolUtil.bytesToHexString(bytes) : ProtocolUtil.bytesToBinaryString(bytes);
                messages.add(msg);
            }));
        } else {
            encodersDecoders.add(new StringEncoder(charset));
            if (agent.getMessageMaxLength().isPresent()) {
                encodersDecoders.add(new FixedLengthFrameDecoder(maxLength));
            } else {
                ByteBuf[] byteDelimiters;
                if (delimiters.length > 0) {
                    byteDelimiters = Arrays.stream(delimiters).map(delim -> Unpooled.wrappedBuffer(delim.getBytes(charset))).toArray(ByteBuf[]::new);
                } else {
                    byteDelimiters = Delimiters.lineDelimiter();
                }
                encodersDecoders.add(new DelimiterBasedFrameDecoder(maxLength, stripDelimiter, byteDelimiters));
            }
            encodersDecoders.add(new StringDecoder(charset));
            encodersDecoders.add(new AbstractNettyIOClient.MessageToMessageDecoder<>(String.class, client));
        }
        return encodersDecoders.toArray(new ChannelHandler[0]);
    };
}

Example 3 with Agent

use of org.openremote.model.asset.agent.Agent in project openremote by openremote.

the class AbstractHTTPServerProtocol method deploy.

protected void deploy(DeploymentInfo deploymentInfo) {
    LOG.info("Deploying JAX-RS deployment for protocol instance : " + this);
    DeploymentManager manager = Servlets.defaultContainer().addDeployment(deploymentInfo);
    manager.deploy();
    HttpHandler httpHandler;
    // Get realm from owning agent asset
    String agentRealm = agent.getRealm();
    if (TextUtil.isNullOrEmpty(agentRealm)) {
        throw new IllegalStateException("Cannot determine the realm that this agent belongs to");
    }
    try {
        httpHandler = manager.start();
        // Wrap the handler to inject the realm
        HttpHandler handlerWrapper = exchange -> {
            exchange.getRequestHeaders().put(HttpString.tryFromString(Constants.REALM_PARAM_NAME), agentRealm);
            httpHandler.handleRequest(exchange);
        };
        WebService.RequestHandler requestHandler = pathStartsWithHandler(deploymentInfo.getDeploymentName(), deploymentInfo.getContextPath(), handlerWrapper);
        LOG.info("Registering HTTP Server Protocol request handler '" + this.getClass().getSimpleName() + "' for request path: " + deploymentInfo.getContextPath());
        // Add the handler before the greedy deployment handler
        webService.getRequestHandlers().add(0, requestHandler);
        deployment = new DeploymentInstance(deploymentInfo, requestHandler);
    } catch (ServletException e) {
        LOG.severe("Failed to deploy deployment: " + deploymentInfo.getDeploymentName());
    }
}

Example 4 with Agent

use of org.openremote.model.asset.agent.Agent in project openremote by openremote.

the class ValueUtil method doInitialise.

/**
 * Initialise the asset model and throw an {@link IllegalStateException} exception if a problem is detected; this
 * can be called by applications at startup to fail hard and fast if the asset model is un-usable
 */
protected static void doInitialise() throws IllegalStateException {
    assetInfoMap = new HashMap<>();
    assetTypeMap = new HashMap<>();
    agentLinkMap = new HashMap<>();
    metaItemDescriptors = new ArrayList<>();
    valueDescriptors = new ArrayList<>();
    generator = null;
    // Provide basic Object Mapper and enhance once asset model is initialised
    JSON = configureObjectMapper(new ObjectMapper());
    LOG.info("Initialising asset model...");
    Map<Class<? extends Asset<?>>, List<NameHolder>> assetDescriptorProviders = new TreeMap<>(new ClassHierarchyComparator());
    // noinspection RedundantCast
    assetDescriptorProviders.put((Class<? extends Asset<?>>) (Class<?>) Asset.class, new ArrayList<>(getDescriptorFields(Asset.class)));
    getModelProviders().forEach(assetModelProvider -> {
        LOG.fine("Processing asset model provider: " + assetModelProvider.getClass().getSimpleName());
        LOG.fine("Auto scan = " + assetModelProvider.useAutoScan());
        if (assetModelProvider.useAutoScan()) {
            Set<Class<? extends Asset<?>>> assetClasses = getAssetClasses(assetModelProvider);
            LOG.fine("Found " + assetClasses.size() + " asset class(es)");
            assetClasses.forEach(assetClass -> assetDescriptorProviders.computeIfAbsent(assetClass, aClass -> new ArrayList<>(getDescriptorFields(aClass))));
            ModelDescriptors modelDescriptors = assetModelProvider.getClass().getAnnotation(ModelDescriptors.class);
            if (modelDescriptors != null) {
                for (ModelDescriptor modelDescriptor : modelDescriptors.value()) {
                    Class<? extends Asset<?>> assetClass = (Class<? extends Asset<?>>) modelDescriptor.assetType();
                    assetDescriptorProviders.compute(assetClass, (aClass, list) -> {
                        if (list == null) {
                            list = new ArrayList<>();
                        }
                        list.addAll(getDescriptorFields(modelDescriptor.provider()));
                        return list;
                    });
                }
            }
        }
        if (assetModelProvider.getAssetDescriptors() != null) {
            for (AssetDescriptor<?> assetDescriptor : assetModelProvider.getAssetDescriptors()) {
                Class<? extends Asset<?>> assetClass = assetDescriptor.getType();
                assetDescriptorProviders.compute(assetClass, (aClass, list) -> {
                    if (list == null) {
                        list = new ArrayList<>();
                    }
                    list.add(assetDescriptor);
                    return list;
                });
            }
        }
        if (assetModelProvider.getAttributeDescriptors() != null) {
            assetModelProvider.getAttributeDescriptors().forEach((assetClass, attributeDescriptors) -> assetDescriptorProviders.compute(assetClass, (aClass, list) -> {
                if (list == null) {
                    list = new ArrayList<>();
                }
                list.addAll(attributeDescriptors);
                return list;
            }));
        }
        if (assetModelProvider.getMetaItemDescriptors() != null) {
            assetModelProvider.getMetaItemDescriptors().forEach((assetClass, metaDescriptors) -> assetDescriptorProviders.compute(assetClass, (aClass, list) -> {
                if (list == null) {
                    list = new ArrayList<>();
                }
                list.addAll(metaDescriptors);
                return list;
            }));
        }
        if (assetModelProvider.getValueDescriptors() != null) {
            assetModelProvider.getValueDescriptors().forEach((assetClass, valueDescriptors) -> assetDescriptorProviders.compute(assetClass, (aClass, list) -> {
                if (list == null) {
                    list = new ArrayList<>();
                }
                list.addAll(valueDescriptors);
                return list;
            }));
        }
    });
    // Build each asset info checking that no conflicts occur
    Map<Class<? extends Asset<?>>, List<NameHolder>> copy = new HashMap<>(assetDescriptorProviders);
    assetDescriptorProviders.forEach((assetClass, descriptors) -> {
        // Skip abstract classes as a start point - they should be in the class hierarchy of concrete class
        if (!Modifier.isAbstract(assetClass.getModifiers())) {
            AssetTypeInfo assetInfo = buildAssetInfo(assetClass, copy);
            assetInfoMap.put(assetClass, assetInfo);
            assetTypeMap.put(assetInfo.getAssetDescriptor().getName(), assetClass);
            if (assetInfo.getAssetDescriptor() instanceof AgentDescriptor) {
                AgentDescriptor<?, ?, ?> agentDescriptor = (AgentDescriptor<?, ?, ?>) assetInfo.getAssetDescriptor();
                String agentLinkName = agentDescriptor.getAgentLinkClass().getSimpleName();
                if (agentLinkMap.containsKey(agentLinkName) && agentLinkMap.get(agentLinkName) != agentDescriptor.getAgentLinkClass()) {
                    throw new IllegalStateException("AgentLink simple class name must be unique, duplicate found for: " + agentDescriptor.getAgentLinkClass());
                }
                agentLinkMap.put(agentLinkName, agentDescriptor.getAgentLinkClass());
            }
        }
    });
    // Check each value type implements serializable interface
    List<ValueDescriptor<?>> nonSerializableValueDescriptors = new ArrayList<>();
    valueDescriptors.forEach(vd -> {
        if (!Serializable.class.isAssignableFrom(vd.getType())) {
            nonSerializableValueDescriptors.add(vd);
        }
    });
    if (!nonSerializableValueDescriptors.isEmpty()) {
        String vds = nonSerializableValueDescriptors.stream().map(ValueDescriptor::toString).collect(Collectors.joining(",\n"));
        throw new IllegalStateException("One or more value types do not implement java.io.Serializable: " + vds);
    }
    // Call on finished on each provider
    assetModelProviders.forEach(AssetModelProvider::onAssetModelFinished);
    // Add agent link sub types to object mapper (need to avoid circular dependency)
    NamedType[] agentLinkSubTypes = Arrays.stream(getAgentLinkClasses()).map(agentLinkClass -> new NamedType(agentLinkClass, agentLinkClass.getSimpleName())).toArray(NamedType[]::new);
    JSON.registerSubtypes(agentLinkSubTypes);
    doSchemaInit();
}