001/*
002 * (C) Copyright 2014 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 *     Anahide Tchertchian
018 */
019package org.nuxeo.targetplatforms.io;
020
021import java.io.IOException;
022import java.io.OutputStream;
023import java.util.List;
024
025import org.codehaus.jackson.JsonFactory;
026import org.codehaus.jackson.JsonGenerator;
027import org.codehaus.jackson.map.ObjectMapper;
028import org.codehaus.jackson.map.SerializationConfig;
029import org.nuxeo.targetplatforms.api.TargetPackage;
030import org.nuxeo.targetplatforms.api.TargetPackageInfo;
031import org.nuxeo.targetplatforms.api.TargetPlatform;
032import org.nuxeo.targetplatforms.api.TargetPlatformInfo;
033import org.nuxeo.targetplatforms.api.TargetPlatformInstance;
034
035/**
036 * JSON exporter for target platforms, packages and related info.
037 *
038 * @since 5.9.3
039 */
040public class JSONExporter {
041
042    public static void exportToJson(TargetPlatform tp, OutputStream out, boolean pretty) throws IOException {
043        exportToJson((Object) tp, out, pretty);
044    }
045
046    public static void exportToJson(List<TargetPlatform> tp, OutputStream out, boolean pretty) throws IOException {
047        exportToJson((Object) tp, out, pretty);
048    }
049
050    public static void exportToJson(TargetPlatformInfo tpi, OutputStream out, boolean pretty) throws IOException {
051        exportToJson((Object) tpi, out, pretty);
052    }
053
054    public static void exportInfosToJson(List<TargetPlatformInfo> tpi, OutputStream out, boolean pretty)
055            throws IOException {
056        exportToJson(tpi, out, pretty);
057    }
058
059    public static void exportToJson(TargetPlatformInstance tpi, OutputStream out, boolean pretty) throws IOException {
060        exportToJson((Object) tpi, out, pretty);
061    }
062
063    public static void exportToJson(TargetPackage tp, OutputStream out, boolean pretty) throws IOException {
064        exportToJson((Object) tp, out, pretty);
065    }
066
067    public static void exportToJson(TargetPackageInfo tpi, OutputStream out, boolean pretty) throws IOException {
068        exportToJson((Object) tpi, out, pretty);
069    }
070
071    protected static JsonFactory createFactory() {
072        JsonFactory factory = new JsonFactory();
073        final ObjectMapper oc = new ObjectMapper(factory);
074        oc.configure(SerializationConfig.Feature.SORT_PROPERTIES_ALPHABETICALLY, true);
075        factory.setCodec(oc);
076        return factory;
077    }
078
079    protected static void exportToJson(Object object, OutputStream out, boolean pretty) throws IOException {
080        JsonFactory factory = createFactory();
081        JsonGenerator jg = factory.createJsonGenerator(out);
082        if (pretty) {
083            jg.useDefaultPrettyPrinter();
084        }
085        jg.writeObject(object);
086        jg.flush();
087    }
088
089}