001/*
002 * (C) Copyright 2015-2016 Nuxeo SA (http://nuxeo.com/) and others.
003 *
004 * Licensed under the Apache License, Version 2.0 (the "License");
005 * you may not use this file except in compliance with the License.
006 * You may obtain a copy of the License at
007 *
008 *     http://www.apache.org/licenses/LICENSE-2.0
009 *
010 * Unless required by applicable law or agreed to in writing, software
011 * distributed under the License is distributed on an "AS IS" BASIS,
012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
013 * See the License for the specific language governing permissions and
014 * limitations under the License.
015 *
016 * Contributors:
017 *     Thierry Delprat <[email protected]>
018 */
019package org.nuxeo.automation.scripting.internals;
020
021import java.util.ArrayList;
022import java.util.Calendar;
023import java.util.HashMap;
024import java.util.List;
025import java.util.Map;
026
027import jdk.nashorn.api.scripting.ScriptObjectMirror;
028
029/**
030 * @since 7.2
031 */
032public class ScriptObjectMirrors {
033
034    private static final String JAVASCRIPT_MAP_CLASS_TYPE = "Object";
035
036    private static final String JAVASCRIPT_DATE_CLASS_TYPE = "Date";
037
038    private static final String JAVASCRIPT_GLOBAL_CLASS_TYPE = "global";
039
040    private static final String JAVASCRIPT_FUNCTION_CLASS_TYPE = "Function";
041
042
043    private ScriptObjectMirrors() {
044        // empty
045    }
046
047    public static Object unwrap(ScriptObjectMirror jso) {
048        if (jso.isArray()) {
049            return unwrapList(jso);
050        } else if (JAVASCRIPT_MAP_CLASS_TYPE.equals(jso.getClassName())) {
051            return unwrapMap(jso);
052        } else if (JAVASCRIPT_DATE_CLASS_TYPE.equals(jso.getClassName())) {
053            return unwrapDate(jso);
054        } else if (JAVASCRIPT_GLOBAL_CLASS_TYPE.equals(jso.getClassName())) {
055            return null;
056        } else if (JAVASCRIPT_FUNCTION_CLASS_TYPE.equals(jso.getClassName())) {
057            return null;
058        } else {
059            throw new UnsupportedOperationException(jso.getClassName() + " is not supported!");
060        }
061    }
062
063    /**
064     * @since 8.4
065     */
066    public static List<Object> unwrapList(ScriptObjectMirror jso) {
067        if (!jso.isArray()) {
068            throw new IllegalArgumentException("JavaScript input is not an Array!");
069        }
070        List<Object> l = new ArrayList<>();
071        for (Object o : jso.values()) {
072            if (o instanceof ScriptObjectMirror) {
073                l.add(unwrap((ScriptObjectMirror) o));
074            } else {
075                l.add(o);
076            }
077        }
078        return l;
079    }
080
081    public static Map<String, Object> unwrapMap(ScriptObjectMirror jso) {
082        if (!JAVASCRIPT_MAP_CLASS_TYPE.equals(jso.getClassName())) {
083            throw new IllegalArgumentException("JavaScript input is not an Object!");
084        }
085        Map<String, Object> result = new HashMap<>();
086        for (String k : jso.keySet()) {
087            Object o = jso.get(k);
088            if (o instanceof ScriptObjectMirror) {
089                result.put(k, unwrap((ScriptObjectMirror) o));
090            } else {
091                result.put(k, DocumentScriptingWrapper.unwrap(o));
092            }
093        }
094        return result;
095    }
096
097    /**
098     * @since 8.4
099     */
100    public static Calendar unwrapDate(ScriptObjectMirror jso) {
101        if (!JAVASCRIPT_DATE_CLASS_TYPE.equals(jso.getClassName())) {
102            throw new IllegalArgumentException("JavaScript input is not a Date!");
103        }
104        Calendar cal = Calendar.getInstance();
105        cal.setTimeInMillis(((Double) jso.callMember("getTime")).longValue());
106        return cal;
107    }
108
109    public static Object wrap(Map<String, Object> map) {
110        return ScriptObjectMirror.wrap(map, null);
111    }
112
113}