Examples with RestVariable org.wso2.carbon.bpmn.rest.engine.variable.RestVariable used on opensource projects

Example 41 with RestVariable

use of org.wso2.carbon.bpmn.rest.engine.variable.RestVariable in project carbon-business-process by wso2.

the class ProcessInstanceService method setBinaryVariable.

protected RestVariable setBinaryVariable(MultipartBody multipartBody, Execution execution, int responseVariableType, boolean isNew) throws IOException, ServletException {
    boolean debugEnabled = log.isDebugEnabled();
    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;
            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 scope = outputStream.toString();
                    attachmentDataHolder.setScope(scope);
                }
            }
            if (contentType != null) {
                if ("file".equals(dispositionName)) {
                    InputStream inputStream;
                    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();
    String variableScope = attachmentDataHolder.getScope();
    String variableName = attachmentDataHolder.getName();
    String variableType = attachmentDataHolder.getType();
    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" + ".");
    }
    if (debugEnabled) {
        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 (variableType.equals(RestResponseFactory.BYTE_ARRAY_VARIABLE_TYPE)) {
            // 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);
            }
        }
        RestResponseFactory restResponseFactory = new RestResponseFactory();
        if (responseVariableType == RestResponseFactory.VARIABLE_PROCESS) {
            return new RestResponseFactory().createBinaryRestVariable(variableName, scope, variableType, null, null, execution.getId(), uriInfo.getBaseUri().toString());
        } else {
            return 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 not found: " + ioe.getMessage());
    }
}

Example 42 with RestVariable

use of org.wso2.carbon.bpmn.rest.engine.variable.RestVariable in project carbon-business-process by wso2.

the class ExecutionService method createOrUpdateBinaryExecutionVariable.

@PUT
@Path("/{executionId}/variables")
@Produces({ MediaType.APPLICATION_JSON, MediaType.APPLICATION_XML })
@Consumes(MediaType.MULTIPART_FORM_DATA)
public Response createOrUpdateBinaryExecutionVariable(@PathParam("executionId") String executionId, MultipartBody multipartBody) {
    Execution execution = getExecutionFromRequest(executionId);
    RestVariable restVariable = createBinaryExecutionVariable(execution, RestResponseFactory.VARIABLE_EXECUTION, uriInfo, true, multipartBody);
    return Response.ok().status(Response.Status.CREATED).entity(restVariable).build();
}

Example 43 with RestVariable

use of org.wso2.carbon.bpmn.rest.engine.variable.RestVariable in project carbon-business-process by wso2.

the class ExecutionService method updateVariable.

@PUT
@Path("/{executionId}/variables/{variableName}")
@Produces({ MediaType.APPLICATION_JSON, MediaType.APPLICATION_XML })
@Consumes({ MediaType.APPLICATION_JSON, MediaType.APPLICATION_XML })
public Response updateVariable(@PathParam("executionId") String executionId, @PathParam("variableName") String variableName, @Context HttpServletRequest httpServletRequest) {
    Execution execution = getExecutionFromRequest(executionId);
    RestVariable result = null;
    RestVariable restVariable = null;
    if (Utils.isApplicationJsonRequest(httpServletRequest)) {
        try {
            restVariable = new ObjectMapper().readValue(httpServletRequest.getInputStream(), RestVariable.class);
        } catch (Exception e) {
            throw new ActivitiIllegalArgumentException("Error converting request body to RestVariable instance", e);
        }
    } else if (Utils.isApplicationXmlRequest(httpServletRequest)) {
        JAXBContext jaxbContext;
        try {
            jaxbContext = JAXBContext.newInstance(RestVariable.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();
            restVariable = (RestVariable) jaxbUnmarshaller.unmarshal(xmlReader);
        } catch (JAXBException | IOException | XMLStreamException e) {
            throw new ActivitiIllegalArgumentException("xml request body could not be transformed to a RestVariable instance.", e);
        }
    }
    if (restVariable == null) {
        throw new ActivitiException("Invalid body was supplied");
    }
    if (!restVariable.getName().equals(variableName)) {
        throw new ActivitiIllegalArgumentException("Variable name in the body should be equal to the name used in the requested URL.");
    }
    result = setSimpleVariable(restVariable, execution, false, uriInfo);
    return Response.ok().status(Response.Status.CREATED).entity(result).build();
}

Example 44 with RestVariable

use of org.wso2.carbon.bpmn.rest.engine.variable.RestVariable in project carbon-business-process by wso2.

the class ExecutionService method getVariableData.

@GET
@Path("/{executionId}/variables/{variableName}/data")
public Response getVariableData(@PathParam("executionId") String executionId, @PathParam("variableName") String variableName) {
    String scope = uriInfo.getQueryParameters().getFirst("scope");
    try {
        byte[] result = null;
        Response.ResponseBuilder response = Response.ok();
        Execution execution = getExecutionFromRequest(executionId);
        RestVariable variable = getVariableFromRequest(execution, variableName, scope, true, uriInfo);
        if (RestResponseFactory.BYTE_ARRAY_VARIABLE_TYPE.equals(variable.getType())) {
            result = (byte[]) variable.getValue();
            response.type("application/octet-stream");
        } else if (RestResponseFactory.SERIALIZABLE_VARIABLE_TYPE.equals(variable.getType())) {
            ByteArrayOutputStream buffer = new ByteArrayOutputStream();
            ObjectOutputStream outputStream = new ObjectOutputStream(buffer);
            outputStream.writeObject(variable.getValue());
            outputStream.close();
            result = buffer.toByteArray();
            response.type("application/x-java-serialized-object");
        } else {
            throw new ActivitiObjectNotFoundException("The variable does not have a binary data stream.", null);
        }
        return response.entity(result).build();
    } catch (IOException ioe) {
        throw new ActivitiException("Error getting variable " + variableName, ioe);
    }
}

Example 45 with RestVariable

use of org.wso2.carbon.bpmn.rest.engine.variable.RestVariable in project carbon-business-process by wso2.

the class ExecutionService method createBinaryExecutionVariable.

@POST
@Path("/{executionId}/variables")
@Produces({ MediaType.APPLICATION_JSON, MediaType.APPLICATION_XML })
@Consumes(MediaType.MULTIPART_FORM_DATA)
public Response createBinaryExecutionVariable(@PathParam("executionId") String executionId, MultipartBody multipartBody) {
    Execution execution = getExecutionFromRequest(executionId);
    RestVariable restVariable = createBinaryExecutionVariable(execution, RestResponseFactory.VARIABLE_EXECUTION, uriInfo, true, multipartBody);
    return Response.ok().status(Response.Status.CREATED).entity(restVariable).build();
}