001/*
002 * (C) Copyright 2006-2015 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 *     Nuxeo
018 */
019package org.nuxeo.ecm.automation.core.util;
020
021import java.io.ByteArrayOutputStream;
022import java.io.IOException;
023
024import org.codehaus.jackson.JsonFactory;
025import org.codehaus.jackson.JsonGenerator;
026import org.nuxeo.ecm.core.api.model.impl.ComplexProperty;
027import org.nuxeo.ecm.webengine.JsonFactoryManager;
028import org.nuxeo.runtime.api.Framework;
029
030/**
031 * Helper to handle marshalling of complex types into a JSON-encoded string.
032 *
033 * @since 7.1
034 */
035public class ComplexPropertyJSONEncoder {
036
037    private static JsonFactory getFactory() {
038        JsonFactoryManager jsonFactoryManager = Framework.getLocalService(JsonFactoryManager.class);
039        return jsonFactoryManager.getJsonFactory();
040    }
041
042    public static String encode(ComplexProperty cp) throws IOException {
043        return encode(cp, DateTimeFormat.W3C);
044    }
045
046    public static String encode(ComplexProperty cp, DateTimeFormat dateTimeFormat) throws IOException {
047        ByteArrayOutputStream out = new ByteArrayOutputStream();
048        JsonGenerator jg = getFactory().createJsonGenerator(out);
049        JSONPropertyWriter.writePropertyValue(jg, cp, dateTimeFormat, null);
050        jg.flush();
051        jg.close();
052        return out.toString("UTF-8");
053    }
054}