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.activiti.service.engine; import com.fasterxml.jackson.databind.node.ObjectNode; import org.activiti.domain.ServerConfig; import org.activiti.service.engine.exception.ActivitiServiceException; import org.apache.http.client.methods.HttpGet; import org.apache.http.client.methods.HttpPost; import org.apache.http.client.utils.URIBuilder; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.stereotype.Service; import com.fasterxml.jackson.databind.JsonNode; /** * Service for invoking Activiti REST services. */ @Service public class FormInstanceService { @Autowired protected ActivitiClientService clientUtil; public JsonNode getFormInstance(ServerConfig serverConfig, String formInstanceId) { HttpGet get = new HttpGet(clientUtil.getServerUrl(serverConfig, "/form/form-instance/" + formInstanceId)); return clientUtil.executeRequest(get, serverConfig); } public JsonNode getFormInstances(ServerConfig serverConfig, ObjectNode objectNode) { JsonNode resultNode = null; try { URIBuilder builder = clientUtil.createUriBuilder("/query/form-instances"); HttpPost post = clientUtil.createPost(builder.toString(), serverConfig); post.setEntity(clientUtil.createStringEntity(objectNode.toString())); resultNode = clientUtil.executeRequest(post, serverConfig); } catch (Exception ex) { throw new ActivitiServiceException(ex.getMessage(), ex); } return resultNode; } }