Java tutorial
/* * Copyright 2015 Red Hat, Inc. and/or its affiliates. * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * * 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.jbpm.designer.server.diagram; /** * Copyright (c) 2009 * Philipp Giese * * Permission is hereby granted, free of charge, to any person obtaining a copy * of this software and associated documentation files (the "Software"), to deal * in the Software without restriction, including without limitation the rights * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell * copies of the Software, and to permit persons to whom the Software is * furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included in * all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE * SOFTWARE. */ import java.util.ArrayList; import java.util.HashMap; import org.json.JSONArray; import org.json.JSONException; import org.json.JSONObject; /** * * @author Philipp Giese * */ public class JSONBuilder { public static String parseModeltoString(Diagram diagram) throws JSONException { return parseModel(diagram).toString(); } public static JSONObject parseModel(Diagram diagram) throws JSONException { JSONObject json = new JSONObject(); json.put("resourceId", diagram.getResourceId().toString()); json.put("properties", parseProperties(diagram.getProperties())); json.put("stencil", parseStencil(diagram.getStencilId())); json.put("childShapes", parseChildShapesRecursive(diagram.getChildShapes())); json.put("bounds", parseBounds(diagram.getBounds())); json.put("stencilset", parseStencilSet(diagram.getStencilset())); json.put("ssextensions", parseStencilSetExtensions(diagram.getSsextensions())); return json; } /** * Delivers the correct JSON Object for the stencilId * * @param stencilId * @throws org.json.JSONException */ private static JSONObject parseStencil(String stencilId) throws JSONException { JSONObject stencilObject = new JSONObject(); stencilObject.put("id", stencilId.toString()); return stencilObject; } /** * Parses all child Shapes recursively and adds them to the correct JSON * Object * * @param childShapes * @throws org.json.JSONException */ private static JSONArray parseChildShapesRecursive(ArrayList<Shape> childShapes) throws JSONException { if (childShapes != null) { JSONArray childShapesArray = new JSONArray(); for (Shape childShape : childShapes) { JSONObject childShapeObject = new JSONObject(); childShapeObject.put("resourceId", childShape.getResourceId().toString()); childShapeObject.put("properties", parseProperties(childShape.getProperties())); childShapeObject.put("stencil", parseStencil(childShape.getStencilId())); childShapeObject.put("childShapes", parseChildShapesRecursive(childShape.getChildShapes())); childShapeObject.put("outgoing", parseOutgoings(childShape.getOutgoings())); childShapeObject.put("bounds", parseBounds(childShape.getBounds())); childShapeObject.put("dockers", parseDockers(childShape.getDockers())); if (childShape.getTarget() != null) childShapeObject.put("target", parseTarget(childShape.getTarget())); childShapesArray.put(childShapeObject); } return childShapesArray; } return new JSONArray(); } /** * Delivers the correct JSON Object for the target * * @param target * @throws org.json.JSONException */ private static JSONObject parseTarget(Shape target) throws JSONException { JSONObject targetObject = new JSONObject(); targetObject.put("resourceId", target.getResourceId().toString()); return targetObject; } /** * Delivers the correct JSON Object for the dockers * * @param dockers * @throws org.json.JSONException */ private static JSONArray parseDockers(ArrayList<Point> dockers) throws JSONException { if (dockers != null) { JSONArray dockersArray = new JSONArray(); for (Point docker : dockers) { JSONObject dockerObject = new JSONObject(); dockerObject.put("x", docker.getX().doubleValue()); dockerObject.put("y", docker.getY().doubleValue()); dockersArray.put(dockerObject); } return dockersArray; } return new JSONArray(); } /** * Delivers the correct JSON Object for outgoings * * @param outgoings * @throws org.json.JSONException */ private static JSONArray parseOutgoings(ArrayList<Shape> outgoings) throws JSONException { if (outgoings != null) { JSONArray outgoingsArray = new JSONArray(); for (Shape outgoing : outgoings) { JSONObject outgoingObject = new JSONObject(); outgoingObject.put("resourceId", outgoing.getResourceId().toString()); outgoingsArray.put(outgoingObject); } return outgoingsArray; } return new JSONArray(); } /** * Delivers the correct JSON Object for properties * * @param properties * @throws org.json.JSONException */ private static JSONObject parseProperties(HashMap<String, String> properties) throws JSONException { if (properties != null) { JSONObject propertiesObject = new JSONObject(); for (String key : properties.keySet()) { String propertyValue = properties.get(key); /* * if(propertyValue.matches("true|false")) { * * propertiesObject.put(key, propertyValue.equals("true")); * * } else if(propertyValue.matches("[0-9]+")) { * * Integer value = Integer.parseInt(propertyValue); * propertiesObject.put(key, value); * * } else */if (propertyValue.startsWith("{") && propertyValue.endsWith("}")) { propertiesObject.put(key, new JSONObject(propertyValue)); } else { propertiesObject.put(key, propertyValue.toString()); } } return propertiesObject; } return new JSONObject(); } /** * Delivers the correct JSON Object for the Stencilset Extensions * * @param extensions */ private static JSONArray parseStencilSetExtensions(ArrayList<String> extensions) { if (extensions != null) { JSONArray extensionsArray = new JSONArray(); for (String extension : extensions) extensionsArray.put(extension.toString()); return extensionsArray; } return new JSONArray(); } /** * Delivers the correct JSON Object for the Stencilset * * @param stencilSet * @throws org.json.JSONException */ private static JSONObject parseStencilSet(StencilSet stencilSet) throws JSONException { if (stencilSet != null) { JSONObject stencilSetObject = new JSONObject(); stencilSetObject.put("url", stencilSet.getUrl().toString()); stencilSetObject.put("namespace", stencilSet.getNamespace().toString()); return stencilSetObject; } return new JSONObject(); } /** * Delivers the correct JSON Object for the Bounds * * @param bounds * @throws org.json.JSONException */ private static JSONObject parseBounds(Bounds bounds) throws JSONException { if (bounds != null) { JSONObject boundsObject = new JSONObject(); JSONObject lowerRight = new JSONObject(); JSONObject upperLeft = new JSONObject(); lowerRight.put("x", bounds.getLowerRight().getX().doubleValue()); lowerRight.put("y", bounds.getLowerRight().getY().doubleValue()); upperLeft.put("x", bounds.getUpperLeft().getX().doubleValue()); upperLeft.put("y", bounds.getUpperLeft().getY().doubleValue()); boundsObject.put("lowerRight", lowerRight); boundsObject.put("upperLeft", upperLeft); return boundsObject; } return new JSONObject(); } }