com.glaf.core.web.rest.MxTreeModelResource.java Source code

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Here is the source code for com.glaf.core.web.rest.MxTreeModelResource.java

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/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you 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 com.glaf.core.web.rest;

import java.io.IOException;
import java.util.Collection;
import java.util.List;

import javax.servlet.http.HttpServletRequest;
import javax.ws.rs.GET;
import javax.ws.rs.POST;
import javax.ws.rs.Path;
import javax.ws.rs.PathParam;
import javax.ws.rs.Produces;
import javax.ws.rs.core.Context;
import javax.ws.rs.core.MediaType;

import org.apache.commons.lang3.StringUtils;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.ResponseBody;

import com.alibaba.fastjson.JSONException;
import com.alibaba.fastjson.JSONObject;
import com.fasterxml.jackson.databind.node.ArrayNode;
import com.glaf.core.base.TreeModel;
import com.glaf.core.service.ITreeModelService;
import com.glaf.core.tree.helper.JacksonTreeHelper;
import com.glaf.core.util.RequestUtils;

@Controller("/rs/tree")
@Path("/rs/tree")
public class MxTreeModelResource {
    protected static final Log logger = LogFactory.getLog(MxTreeModelResource.class);

    protected ITreeModelService treeModelService;

    protected JSONObject fillTreeDataChildren(TreeModel treeNode) throws JSONException {
        JSONObject jsonObject = new JSONObject();
        jsonObject.put("id", treeNode.getId());
        if (treeNode.getCode() != null) {
            jsonObject.put("code", treeNode.getCode());
        }
        if (treeNode.getName() != null) {
            jsonObject.put("name", treeNode.getName());
            jsonObject.put("text", treeNode.getName());
        }
        if (treeNode.getDescription() != null) {
            jsonObject.put("description", treeNode.getDescription());
        }
        if (treeNode.getIcon() != null) {
            jsonObject.put("icon", treeNode.getIcon());
        }
        if (treeNode.getUrl() != null) {
            jsonObject.put("url", treeNode.getUrl());
        }
        List<TreeModel> children = treeNode.getChildren();
        if (children != null && children.size() > 0) {
            Collection<JSONObject> rows = new java.util.ArrayList<JSONObject>();
            for (TreeModel node : children) {
                JSONObject o = this.fillTreeDataChildren(node);
                rows.add(o);
            }
            jsonObject.put("children", rows);
        }
        return jsonObject;
    }

    protected JSONObject getTreeData(String code) throws JSONException {
        JSONObject jsonObject = new JSONObject();
        TreeModel treeNode = treeModelService.getTreeModelByCode(code);
        if (treeNode != null) {
            treeNode = treeModelService.getTreeModelWithAllChildren(treeNode.getId());
            jsonObject = this.fillTreeDataChildren(treeNode);
        }
        return jsonObject;
    }

    @GET
    @Path("json/{code}")
    @Produces({ MediaType.APPLICATION_OCTET_STREAM })
    @ResponseBody
    public byte[] json(@PathParam("code") String code) {
        try {
            JSONObject jsonObject = this.getTreeData(code);
            return jsonObject.toString().getBytes("UTF-8");
        } catch (Exception ex) {
            throw new RuntimeException(ex);
        }
    }

    @javax.annotation.Resource
    public void setTreeModelService(ITreeModelService treeModelService) {
        this.treeModelService = treeModelService;
    }

    @GET
    @POST
    @Path("/subJson")
    @ResponseBody
    @Produces({ MediaType.APPLICATION_OCTET_STREAM })
    public byte[] subJson(@Context HttpServletRequest request) {
        String nodeCode = request.getParameter("nodeCode");
        Long nodeId = RequestUtils.getLong(request, "id");
        logger.debug(RequestUtils.getParameterMap(request));
        List<TreeModel> treeModels = new java.util.ArrayList<TreeModel>();

        if (nodeId > 0) {
            TreeModel treeNode = treeModelService.getTreeModel(nodeId);
            if (treeNode != null) {
                treeModels = treeModelService.getSubTreeModels(treeNode.getId());
            }
        } else if (StringUtils.isNotEmpty(nodeCode)) {
            TreeModel treeNode = treeModelService.getTreeModelByCode(nodeCode);
            if (treeNode != null) {
                treeModels = treeModelService.getSubTreeModels(treeNode.getId());
            }
        }

        JacksonTreeHelper treeHelper = new JacksonTreeHelper();
        ArrayNode responseJSON = treeHelper.getTreeArrayNode(treeModels);
        try {
            return responseJSON.toString().getBytes("UTF-8");
        } catch (IOException e) {
            return responseJSON.toString().getBytes();
        }
    }

    @GET
    @POST
    @Path("/treeJson")
    @ResponseBody
    @Produces({ MediaType.APPLICATION_OCTET_STREAM })
    public byte[] treeJson(@Context HttpServletRequest request) {
        String nodeCode = request.getParameter("nodeCode");

        List<TreeModel> treeModels = new java.util.ArrayList<TreeModel>();
        if (StringUtils.isNotEmpty(nodeCode)) {
            TreeModel treeNode = treeModelService.getTreeModelByCode(nodeCode);
            if (treeNode != null) {
                treeModels = treeModelService.getChildrenTreeModels(treeNode.getId());
            }
        }

        JacksonTreeHelper treeHelper = new JacksonTreeHelper();
        ArrayNode responseJSON = treeHelper.getTreeArrayNode(treeModels);
        try {
            return responseJSON.toString().getBytes("UTF-8");
        } catch (IOException e) {
            return responseJSON.toString().getBytes();
        }
    }

}