Java tutorial
/* Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ package org.flowable.rest.service.api.history; import java.io.IOException; import java.util.HashMap; import java.util.Iterator; import org.apache.http.HttpStatus; import org.apache.http.client.methods.CloseableHttpResponse; import org.apache.http.client.methods.HttpPost; import org.apache.http.entity.StringEntity; import org.flowable.engine.runtime.ProcessInstance; import org.flowable.engine.task.Task; import org.flowable.engine.test.Deployment; import org.flowable.rest.service.BaseSpringRestTestCase; import org.flowable.rest.service.api.RestUrls; import com.fasterxml.jackson.core.JsonProcessingException; import com.fasterxml.jackson.databind.JsonNode; import com.fasterxml.jackson.databind.node.ArrayNode; import com.fasterxml.jackson.databind.node.ObjectNode; /** * Test for REST-operation related to the historic variable instance query resource. * * @author Tijs Rademakers */ public class HistoricVariableInstanceQueryResourceTest extends BaseSpringRestTestCase { /** * Test querying historic variable instance. POST query/historic-variable-instances */ @Deployment public void testQueryVariableInstances() throws Exception { HashMap<String, Object> processVariables = new HashMap<String, Object>(); processVariables.put("stringVar", "Azerty"); processVariables.put("intVar", 67890); processVariables.put("booleanVar", false); ProcessInstance processInstance = runtimeService.startProcessInstanceByKey("oneTaskProcess", processVariables); Task task = taskService.createTaskQuery().processInstanceId(processInstance.getId()).singleResult(); taskService.complete(task.getId()); task = taskService.createTaskQuery().processInstanceId(processInstance.getId()).singleResult(); taskService.setVariableLocal(task.getId(), "taskVariable", "test"); ProcessInstance processInstance2 = runtimeService.startProcessInstanceByKey("oneTaskProcess", processVariables); String url = RestUrls.createRelativeResourceUrl(RestUrls.URL_HISTORIC_VARIABLE_INSTANCE_QUERY); ObjectNode requestNode = objectMapper.createObjectNode(); requestNode.put("variableName", "stringVar"); assertResultsPresentInDataResponse(url, requestNode, 2, "stringVar", "Azerty"); requestNode = objectMapper.createObjectNode(); requestNode.put("variableName", "booleanVar"); assertResultsPresentInDataResponse(url, requestNode, 2, "booleanVar", false); requestNode = objectMapper.createObjectNode(); requestNode.put("variableName", "booleanVar2"); assertResultsPresentInDataResponse(url, requestNode, 0, null, null); requestNode = objectMapper.createObjectNode(); requestNode.put("processInstanceId", processInstance.getId()); assertResultsPresentInDataResponse(url, requestNode, 4, "taskVariable", "test"); requestNode = objectMapper.createObjectNode(); requestNode.put("processInstanceId", processInstance.getId()); requestNode.put("excludeTaskVariables", true); assertResultsPresentInDataResponse(url, requestNode, 3, "intVar", 67890); requestNode = objectMapper.createObjectNode(); requestNode.put("processInstanceId", processInstance2.getId()); assertResultsPresentInDataResponse(url, requestNode, 3, "stringVar", "Azerty"); requestNode = objectMapper.createObjectNode(); requestNode.put("taskId", task.getId()); assertResultsPresentInDataResponse(url, requestNode, 1, "taskVariable", "test"); requestNode = objectMapper.createObjectNode(); requestNode.put("taskId", task.getId()); requestNode.put("variableName", "booleanVar"); assertResultsPresentInDataResponse(url, requestNode, 0, null, null); requestNode = objectMapper.createObjectNode(); requestNode.put("variableNameLike", "%Var"); assertResultsPresentInDataResponse(url, requestNode, 6, "stringVar", "Azerty"); requestNode = objectMapper.createObjectNode(); requestNode.put("variableNameLike", "%Var2"); assertResultsPresentInDataResponse(url, requestNode, 0, null, null); requestNode = objectMapper.createObjectNode(); ArrayNode variableArray = objectMapper.createArrayNode(); ObjectNode variableNode = objectMapper.createObjectNode(); variableArray.add(variableNode); requestNode.set("variables", variableArray); variableNode.put("name", "stringVar"); variableNode.put("value", "Azerty"); variableNode.put("operation", "equals"); assertResultsPresentInDataResponse(url, requestNode, 2, "stringVar", "Azerty"); variableNode.removeAll(); requestNode.set("variables", variableArray); variableNode.put("name", "taskVariable"); variableNode.put("value", "test"); variableNode.put("operation", "equals"); assertResultsPresentInDataResponse(url, requestNode, 1, "taskVariable", "test"); variableNode.removeAll(); requestNode.set("variables", variableArray); variableNode.put("name", "taskVariable"); variableNode.put("value", "test"); variableNode.put("operation", "notEquals"); assertErrorResult(url, requestNode, HttpStatus.SC_BAD_REQUEST); } protected void assertResultsPresentInDataResponse(String url, ObjectNode body, int numberOfResultsExpected, String variableName, Object variableValue) throws JsonProcessingException, IOException { // Do the actual call HttpPost httpPost = new HttpPost(SERVER_URL_PREFIX + url); httpPost.setEntity(new StringEntity(body.toString())); CloseableHttpResponse response = executeRequest(httpPost, HttpStatus.SC_OK); // Check status and size JsonNode dataNode = objectMapper.readTree(response.getEntity().getContent()).get("data"); closeResponse(response); assertEquals(numberOfResultsExpected, dataNode.size()); // Check presence of ID's if (variableName != null) { boolean variableFound = false; Iterator<JsonNode> it = dataNode.iterator(); while (it.hasNext()) { JsonNode dataElementNode = it.next(); JsonNode variableNode = dataElementNode.get("variable"); String name = variableNode.get("name").textValue(); if (variableName.equals(name)) { variableFound = true; if (variableValue instanceof Boolean) { assertTrue("Variable value is not equal", variableNode.get("value").asBoolean() == (Boolean) variableValue); } else if (variableValue instanceof Integer) { assertEquals("Variable value is not equal", variableNode.get("value").asInt(), (int) (Integer) variableValue); } else { assertEquals("Variable value is not equal", variableNode.get("value").asText(), (String) variableValue); } } } assertTrue("Variable " + variableName + " is missing", variableFound); } } }