org.activiti.service.engine.FormInstanceService.java Source code

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/* 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;
    }

}