| /* |
| * 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.samples.jcr.contentloader.internal; |
| |
| import java.io.IOException; |
| import java.io.InputStream; |
| import java.io.InputStreamReader; |
| import java.io.Reader; |
| import java.net.URL; |
| import java.nio.charset.StandardCharsets; |
| |
| import javax.jcr.PropertyType; |
| import javax.jcr.RepositoryException; |
| |
| import com.google.gson.Gson; |
| import com.google.gson.GsonBuilder; |
| import com.google.gson.JsonObject; |
| import org.apache.commons.io.IOUtils; |
| import org.apache.felix.scr.annotations.Activate; |
| import org.apache.felix.scr.annotations.Component; |
| import org.apache.felix.scr.annotations.Deactivate; |
| import org.apache.felix.scr.annotations.Modified; |
| import org.apache.felix.scr.annotations.Properties; |
| import org.apache.felix.scr.annotations.Property; |
| import org.apache.felix.scr.annotations.PropertyUnbounded; |
| import org.apache.felix.scr.annotations.Service; |
| import org.apache.sling.jcr.contentloader.BaseContentReader; |
| import org.apache.sling.jcr.contentloader.ContentCreator; |
| import org.apache.sling.jcr.contentloader.ContentReader; |
| import org.osgi.framework.Constants; |
| import org.osgi.service.component.ComponentContext; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| @Component( |
| label = "Apache Sling JCR Content Loader Sample GsonReader", |
| description = "parses JSON content with Gson", |
| immediate = true, |
| metatype = true |
| ) |
| @Service |
| @Properties({ |
| @Property( |
| name = Constants.SERVICE_VENDOR, |
| value = "The Apache Software Foundation" |
| ), |
| @Property( |
| name = Constants.SERVICE_DESCRIPTION, |
| value = "Apache Sling JCR Content Loader Sample GsonReader" |
| ), |
| @Property( |
| name = ContentReader.PROPERTY_EXTENSIONS, |
| value = { |
| "json" |
| }, |
| unbounded = PropertyUnbounded.ARRAY |
| ), |
| @Property( |
| name = ContentReader.PROPERTY_CONTENTTYPES, |
| value = { |
| "application/json" |
| }, |
| unbounded = PropertyUnbounded.ARRAY |
| ), |
| @Property( |
| name = Constants.SERVICE_RANKING, |
| intValue = 1, |
| propertyPrivate = false |
| ) |
| }) |
| public final class GsonReader extends BaseContentReader implements ContentReader { |
| |
| private GsonBuilder gsonBuilder; |
| |
| private final Logger logger = LoggerFactory.getLogger(GsonReader.class); |
| |
| public GsonReader() { |
| } |
| |
| @Activate |
| protected void activate(final ComponentContext componentContext) { |
| configure(componentContext); |
| gsonBuilder = new GsonBuilder(); |
| } |
| |
| @Modified |
| protected void modified(final ComponentContext componentContext) { |
| configure(componentContext); |
| } |
| |
| @Deactivate |
| protected void deactivate(final ComponentContext componentContext) { |
| extensions = null; |
| contentTypes = null; |
| gsonBuilder = null; |
| } |
| |
| @Override |
| public void parse(final URL url, final ContentCreator contentCreator) throws IOException, RepositoryException { |
| InputStream inputStream = null; |
| try { |
| inputStream = url.openStream(); |
| parse(inputStream, contentCreator); |
| } finally { |
| IOUtils.closeQuietly(inputStream); |
| } |
| } |
| |
| /** |
| * TODO well, implement real parsing... |
| */ |
| @Override |
| public void parse(final InputStream inputStream, final ContentCreator contentCreator) throws IOException, RepositoryException { |
| final Gson gson = gsonBuilder.create(); |
| final Reader reader = new InputStreamReader(inputStream, StandardCharsets.UTF_8); |
| final JsonObject jsonObject = gson.fromJson(reader, JsonObject.class); |
| final String json = jsonObject.toString(); |
| logger.debug("json: {}", json); |
| contentCreator.createNode(null, "nt:unstructured", null); |
| contentCreator.createProperty("json", PropertyType.STRING, json); |
| contentCreator.finishNode(); |
| } |
| |
| } |