Examples with Variable org.wso2.siddhi.query.api.expression.Variable used on opensource projects

Example 76 with Variable

use of org.wso2.siddhi.query.api.expression.Variable in project carbon-business-process by wso2.

the class BaseExecutionService method createBinaryExecutionVariable.

protected RestVariable createBinaryExecutionVariable(Execution execution, int responseVariableType, UriInfo uriInfo, boolean isNew, MultipartBody multipartBody) {
    boolean debugEnabled = log.isDebugEnabled();
    Response.ResponseBuilder responseBuilder = Response.ok();
    List<org.apache.cxf.jaxrs.ext.multipart.Attachment> attachments = multipartBody.getAllAttachments();
    int attachmentSize = attachments.size();
    if (attachmentSize <= 0) {
        throw new ActivitiIllegalArgumentException("No Attachments found with the request body");
    }
    AttachmentDataHolder attachmentDataHolder = new AttachmentDataHolder();
    for (int i = 0; i < attachmentSize; i++) {
        org.apache.cxf.jaxrs.ext.multipart.Attachment attachment = attachments.get(i);
        String contentDispositionHeaderValue = attachment.getHeader("Content-Disposition");
        String contentType = attachment.getHeader("Content-Type");
        if (debugEnabled) {
            log.debug("Going to iterate:" + i);
            log.debug("contentDisposition:" + contentDispositionHeaderValue);
        }
        if (contentDispositionHeaderValue != null) {
            contentDispositionHeaderValue = contentDispositionHeaderValue.trim();
            Map<String, String> contentDispositionHeaderValueMap = Utils.processContentDispositionHeader(contentDispositionHeaderValue);
            String dispositionName = contentDispositionHeaderValueMap.get("name");
            DataHandler dataHandler = attachment.getDataHandler();
            OutputStream outputStream = null;
            if ("name".equals(dispositionName)) {
                try {
                    outputStream = Utils.getAttachmentStream(dataHandler.getInputStream());
                } catch (IOException e) {
                    throw new ActivitiIllegalArgumentException("Attachment Name Reading error occured", e);
                }
                if (outputStream != null) {
                    String fileName = outputStream.toString();
                    attachmentDataHolder.setName(fileName);
                }
            } else if ("type".equals(dispositionName)) {
                try {
                    outputStream = Utils.getAttachmentStream(dataHandler.getInputStream());
                } catch (IOException e) {
                    throw new ActivitiIllegalArgumentException("Attachment Type Reading error occured", e);
                }
                if (outputStream != null) {
                    String typeName = outputStream.toString();
                    attachmentDataHolder.setType(typeName);
                }
            } else if ("scope".equals(dispositionName)) {
                try {
                    outputStream = Utils.getAttachmentStream(dataHandler.getInputStream());
                } catch (IOException e) {
                    throw new ActivitiIllegalArgumentException("Attachment Description Reading error occured", e);
                }
                if (outputStream != null) {
                    String description = outputStream.toString();
                    attachmentDataHolder.setScope(description);
                }
            }
            if (contentType != null) {
                if ("file".equals(dispositionName)) {
                    InputStream inputStream = null;
                    try {
                        inputStream = dataHandler.getInputStream();
                    } catch (IOException e) {
                        throw new ActivitiIllegalArgumentException("Error Occured During processing empty body.", e);
                    }
                    if (inputStream != null) {
                        attachmentDataHolder.setContentType(contentType);
                        byte[] attachmentArray = new byte[0];
                        try {
                            attachmentArray = IOUtils.toByteArray(inputStream);
                        } catch (IOException e) {
                            throw new ActivitiIllegalArgumentException("Processing Attachment Body Failed.", e);
                        }
                        attachmentDataHolder.setAttachmentArray(attachmentArray);
                    }
                }
            }
        }
    }
    attachmentDataHolder.printDebug();
    if (attachmentDataHolder.getName() == null) {
        throw new ActivitiIllegalArgumentException("Attachment name is required.");
    }
    if (attachmentDataHolder.getAttachmentArray() == null) {
        throw new ActivitiIllegalArgumentException("Empty attachment body was found in request body after " + "decoding the request" + ".");
    }
    String variableScope = attachmentDataHolder.getScope();
    String variableName = attachmentDataHolder.getName();
    String variableType = attachmentDataHolder.getType();
    if (log.isDebugEnabled()) {
        log.debug("variableScope:" + variableScope + " variableName:" + variableName + " variableType:" + variableType);
    }
    try {
        // Validate input and set defaults
        if (variableName == null) {
            throw new ActivitiIllegalArgumentException("No variable name was found in request body.");
        }
        if (variableType != null) {
            if (!RestResponseFactory.BYTE_ARRAY_VARIABLE_TYPE.equals(variableType) && !RestResponseFactory.SERIALIZABLE_VARIABLE_TYPE.equals(variableType)) {
                throw new ActivitiIllegalArgumentException("Only 'binary' and 'serializable' are supported as variable type.");
            }
        } else {
            variableType = RestResponseFactory.BYTE_ARRAY_VARIABLE_TYPE;
        }
        RestVariable.RestVariableScope scope = RestVariable.RestVariableScope.LOCAL;
        if (variableScope != null) {
            scope = RestVariable.getScopeFromString(variableScope);
        }
        if (RestResponseFactory.BYTE_ARRAY_VARIABLE_TYPE.equals(variableType)) {
            // Use raw bytes as variable value
            setVariable(execution, variableName, attachmentDataHolder.getAttachmentArray(), scope, isNew);
        } else {
            // Try deserializing the object
            try (InputStream inputStream = new ByteArrayInputStream(attachmentDataHolder.getAttachmentArray());
                ObjectInputStream stream = new ObjectInputStream(inputStream)) {
                Object value = stream.readObject();
                setVariable(execution, variableName, value, scope, isNew);
            }
        }
        if (responseVariableType == RestResponseFactory.VARIABLE_PROCESS) {
            return new RestResponseFactory().createBinaryRestVariable(variableName, scope, variableType, null, null, execution.getId(), uriInfo.getBaseUri().toString());
        } else {
            return new RestResponseFactory().createBinaryRestVariable(variableName, scope, variableType, null, execution.getId(), null, uriInfo.getBaseUri().toString());
        }
    } catch (IOException ioe) {
        throw new ActivitiIllegalArgumentException("Could not process multipart content", ioe);
    } catch (ClassNotFoundException ioe) {
        throw new BPMNContentNotSupportedException("The provided body contains a serialized object for which the class is nog found: " + ioe.getMessage());
    }
}

Example 77 with Variable

use of org.wso2.siddhi.query.api.expression.Variable in project carbon-business-process by wso2.

the class BaseExecutionService method getVariablesToSet.

protected Map<String, Object> getVariablesToSet(CorrelationActionRequest correlationActionRequest) {
    Map<String, Object> variablesToSet = new HashMap<String, Object>();
    for (RestVariable var : correlationActionRequest.getVariables()) {
        if (var.getName() == null) {
            throw new ActivitiIllegalArgumentException("Variable name is required");
        }
        Object actualVariableValue = new RestResponseFactory().getVariableValue(var);
        variablesToSet.put(var.getName(), actualVariableValue);
    }
    return variablesToSet;
}

Example 78 with Variable

use of org.wso2.siddhi.query.api.expression.Variable in project carbon-business-process by wso2.

the class BaseExecutionService method addVariables.

protected void addVariables(ExecutionQuery processInstanceQuery, List<QueryVariable> variables, boolean process) {
    for (QueryVariable variable : variables) {
        if (variable.getVariableOperation() == null) {
            throw new ActivitiIllegalArgumentException("Variable operation is missing for variable: " + variable.getName());
        }
        if (variable.getValue() == null) {
            throw new ActivitiIllegalArgumentException("Variable value is missing for variable: " + variable.getName());
        }
        boolean nameLess = variable.getName() == null;
        Object actualValue = new RestResponseFactory().getVariableValue(variable);
        // A value-only query is only possible using equals-operator
        if (nameLess && variable.getVariableOperation() != QueryVariable.QueryVariableOperation.EQUALS) {
            throw new ActivitiIllegalArgumentException("Value-only query (without a variable-name) is only supported when using 'equals' operation.");
        }
        switch(variable.getVariableOperation()) {
            case EQUALS:
                if (nameLess) {
                    if (process) {
                        processInstanceQuery.processVariableValueEquals(actualValue);
                    } else {
                        processInstanceQuery.variableValueEquals(actualValue);
                    }
                } else {
                    if (process) {
                        processInstanceQuery.processVariableValueEquals(variable.getName(), actualValue);
                    } else {
                        processInstanceQuery.variableValueEquals(variable.getName(), actualValue);
                    }
                }
                break;
            case EQUALS_IGNORE_CASE:
                if (actualValue instanceof String) {
                    if (process) {
                        processInstanceQuery.processVariableValueEqualsIgnoreCase(variable.getName(), (String) actualValue);
                    } else {
                        processInstanceQuery.variableValueEqualsIgnoreCase(variable.getName(), (String) actualValue);
                    }
                } else {
                    throw new ActivitiIllegalArgumentException("Only string variable values are supported when ignoring casing, but was: " + actualValue.getClass().getName());
                }
                break;
            case NOT_EQUALS:
                if (process) {
                    processInstanceQuery.processVariableValueNotEquals(variable.getName(), actualValue);
                } else {
                    processInstanceQuery.variableValueNotEquals(variable.getName(), actualValue);
                }
                break;
            case NOT_EQUALS_IGNORE_CASE:
                if (actualValue instanceof String) {
                    if (process) {
                        processInstanceQuery.processVariableValueNotEqualsIgnoreCase(variable.getName(), (String) actualValue);
                    } else {
                        processInstanceQuery.variableValueNotEqualsIgnoreCase(variable.getName(), (String) actualValue);
                    }
                } else {
                    throw new ActivitiIllegalArgumentException("Only string variable values are supported when ignoring casing, but was: " + actualValue.getClass().getName());
                }
                break;
            default:
                throw new ActivitiIllegalArgumentException("Unsupported variable query operation: " + variable.getVariableOperation());
        }
    }
}

Example 79 with Variable

use of org.wso2.siddhi.query.api.expression.Variable in project carbon-business-process by wso2.

the class BaseExecutionService method createExecutionVariable.

protected Response createExecutionVariable(Execution execution, boolean override, int variableType, HttpServletRequest httpServletRequest, UriInfo uriInfo) {
    Object result = null;
    Response.ResponseBuilder responseBuilder = Response.ok();
    List<RestVariable> inputVariables = new ArrayList<>();
    List<RestVariable> resultVariables = new ArrayList<>();
    if (Utils.isApplicationJsonRequest(httpServletRequest)) {
        try {
            ObjectMapper objectMapper = new ObjectMapper();
            @SuppressWarnings("unchecked") List<Object> variableObjects = (List<Object>) objectMapper.readValue(httpServletRequest.getInputStream(), List.class);
            for (Object restObject : variableObjects) {
                RestVariable restVariable = objectMapper.convertValue(restObject, RestVariable.class);
                inputVariables.add(restVariable);
            }
        } catch (Exception e) {
            throw new ActivitiIllegalArgumentException("Failed to serialize to a RestVariable instance", e);
        }
    } else if (Utils.isApplicationXmlRequest(httpServletRequest)) {
        JAXBContext jaxbContext = null;
        try {
            jaxbContext = JAXBContext.newInstance(RestVariableCollection.class);
            XMLInputFactory inputFactory = XMLInputFactory.newInstance();
            inputFactory.setProperty(XMLInputFactory.IS_SUPPORTING_EXTERNAL_ENTITIES, false);
            inputFactory.setProperty(XMLInputFactory.SUPPORT_DTD, false);
            XMLStreamReader xmlReader = inputFactory.createXMLStreamReader(new StreamSource(httpServletRequest.getInputStream()));
            Unmarshaller jaxbUnmarshaller = jaxbContext.createUnmarshaller();
            RestVariableCollection restVariableCollection = (RestVariableCollection) jaxbUnmarshaller.unmarshal(xmlReader);
            if (restVariableCollection == null) {
                throw new ActivitiIllegalArgumentException("xml request body could not be transformed to a " + "RestVariable Collection instance.");
            }
            List<RestVariable> restVariableList = restVariableCollection.getRestVariables();
            if (restVariableList.size() == 0) {
                throw new ActivitiIllegalArgumentException("xml request body could not identify any rest " + "variables to be updated");
            }
            for (RestVariable restVariable : restVariableList) {
                inputVariables.add(restVariable);
            }
        } catch (JAXBException | IOException | XMLStreamException e) {
            throw new ActivitiIllegalArgumentException("xml request body could not be transformed to a " + "RestVariable instance.", e);
        }
    }
    if (inputVariables.size() == 0) {
        throw new ActivitiIllegalArgumentException("Request didn't contain a list of variables to create.");
    }
    RestVariable.RestVariableScope sharedScope = null;
    RestVariable.RestVariableScope varScope = null;
    Map<String, Object> variablesToSet = new HashMap<String, Object>();
    for (RestVariable var : inputVariables) {
        // Validate if scopes match
        varScope = var.getVariableScope();
        if (var.getName() == null) {
            throw new ActivitiIllegalArgumentException("Variable name is required");
        }
        if (varScope == null) {
            varScope = RestVariable.RestVariableScope.LOCAL;
        }
        if (sharedScope == null) {
            sharedScope = varScope;
        }
        if (varScope != sharedScope) {
            throw new ActivitiIllegalArgumentException("Only allowed to update multiple variables in the same scope.");
        }
        if (!override && hasVariableOnScope(execution, var.getName(), varScope)) {
            throw new BPMNConflictException("Variable '" + var.getName() + "' is already present on execution '" + execution.getId() + "'.");
        }
        Object actualVariableValue = new RestResponseFactory().getVariableValue(var);
        variablesToSet.put(var.getName(), actualVariableValue);
        resultVariables.add(new RestResponseFactory().createRestVariable(var.getName(), actualVariableValue, varScope, execution.getId(), variableType, false, uriInfo.getBaseUri().toString()));
    }
    if (!variablesToSet.isEmpty()) {
        RuntimeService runtimeService = BPMNOSGIService.getRuntimeService();
        if (sharedScope == RestVariable.RestVariableScope.LOCAL) {
            runtimeService.setVariablesLocal(execution.getId(), variablesToSet);
        } else {
            if (execution.getParentId() != null) {
                // Explicitly set on parent, setting non-local variables on execution itself will override local-variables if exists
                runtimeService.setVariables(execution.getParentId(), variablesToSet);
            } else {
                // Standalone task, no global variables possible
                throw new ActivitiIllegalArgumentException("Cannot set global variables on execution '" + execution.getId() + "', task is not part of process.");
            }
        }
    }
    RestVariableCollection restVariableCollection = new RestVariableCollection();
    restVariableCollection.setRestVariables(resultVariables);
    responseBuilder.entity(restVariableCollection);
    return responseBuilder.status(Response.Status.CREATED).build();
}

Example 80 with Variable

use of org.wso2.siddhi.query.api.expression.Variable in project carbon-business-process by wso2.

the class BaseRuntimeService method addVariables.

protected void addVariables(ExecutionQuery processInstanceQuery, List<QueryVariable> variables, boolean process) {
    for (QueryVariable variable : variables) {
        if (variable.getVariableOperation() == null) {
            throw new ActivitiIllegalArgumentException("Variable operation is missing for variable: " + variable.getName());
        }
        if (variable.getValue() == null) {
            throw new ActivitiIllegalArgumentException("Variable value is missing for variable: " + variable.getName());
        }
        boolean nameLess = variable.getName() == null;
        Object actualValue = new RestResponseFactory().getVariableValue(variable);
        // A value-only query is only possible using equals-operator
        if (nameLess && variable.getVariableOperation() != QueryVariable.QueryVariableOperation.EQUALS) {
            throw new ActivitiIllegalArgumentException("Value-only query (without a variable-name) is only supported when using 'equals' operation.");
        }
        switch(variable.getVariableOperation()) {
            case EQUALS:
                if (nameLess) {
                    if (process) {
                        processInstanceQuery.processVariableValueEquals(actualValue);
                    } else {
                        processInstanceQuery.variableValueEquals(actualValue);
                    }
                } else {
                    if (process) {
                        processInstanceQuery.processVariableValueEquals(variable.getName(), actualValue);
                    } else {
                        processInstanceQuery.variableValueEquals(variable.getName(), actualValue);
                    }
                }
                break;
            case EQUALS_IGNORE_CASE:
                if (actualValue instanceof String) {
                    if (process) {
                        processInstanceQuery.processVariableValueEqualsIgnoreCase(variable.getName(), (String) actualValue);
                    } else {
                        processInstanceQuery.variableValueEqualsIgnoreCase(variable.getName(), (String) actualValue);
                    }
                } else {
                    throw new ActivitiIllegalArgumentException("Only string variable values are supported when ignoring casing, but was: " + actualValue.getClass().getName());
                }
                break;
            case NOT_EQUALS:
                if (process) {
                    processInstanceQuery.processVariableValueNotEquals(variable.getName(), actualValue);
                } else {
                    processInstanceQuery.variableValueNotEquals(variable.getName(), actualValue);
                }
                break;
            case NOT_EQUALS_IGNORE_CASE:
                if (actualValue instanceof String) {
                    if (process) {
                        processInstanceQuery.processVariableValueNotEqualsIgnoreCase(variable.getName(), (String) actualValue);
                    } else {
                        processInstanceQuery.variableValueNotEqualsIgnoreCase(variable.getName(), (String) actualValue);
                    }
                } else {
                    throw new ActivitiIllegalArgumentException("Only string variable values are supported when ignoring casing, but was: " + actualValue.getClass().getName());
                }
                break;
            default:
                throw new ActivitiIllegalArgumentException("Unsupported variable query operation: " + variable.getVariableOperation());
        }
    }
}