Java tutorial
/*- * 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 org.apache.sling.query.mock.json; import java.io.InputStream; import java.io.InputStreamReader; import java.util.Map.Entry; import org.apache.sling.api.resource.Resource; import org.apache.sling.query.mock.ResourceMock; import org.apache.sling.query.mock.PropertyResourceMock; import com.google.gson.JsonArray; import com.google.gson.JsonElement; import com.google.gson.JsonObject; import com.google.gson.JsonParser; import com.google.gson.JsonPrimitive; public final class JsonToResource { private JsonToResource() { } public static Resource parse(InputStream inputStream) { JsonElement element = new JsonParser().parse(new InputStreamReader(inputStream)); return parseResource(element.getAsJsonObject(), "/", null); } private static Resource parseResource(JsonElement object, String name, Resource parent) { if (object.isJsonArray()) { return parseResource(object.getAsJsonArray(), name, parent); } else if (object.isJsonPrimitive()) { return parseResource(object.getAsJsonPrimitive(), name, parent); } else if (object.isJsonObject()) { return parseResource(object.getAsJsonObject(), name, parent); } else { return null; } } private static Resource parseResource(JsonArray array, String name, Resource parent) { final String[] values = new String[array.size()]; int i = 0; for (JsonElement e : array) { values[i++] = e.getAsString(); } return new PropertyResourceMock(parent, name, values); } private static Resource parseResource(JsonPrimitive primitive, String name, Resource parent) { return new PropertyResourceMock(parent, name, primitive.getAsString()); } private static Resource parseResource(JsonObject object, String name, Resource parent) { ResourceMock resource = new ResourceMock(parent, name); for (Entry<String, JsonElement> entry : object.entrySet()) { resource.addChild(parseResource(entry.getValue(), entry.getKey(), resource)); } return resource; } }