/** * Copyright 2013-2019 the original author or authors from the Jeddict project (https://jeddict.github.io/). * * Licensed 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 io.github.jeddict.jcode.util; import static io.github.jeddict.jcode.util.StringHelper.kebabCase; import java.io.ByteArrayInputStream; import java.io.ByteArrayOutputStream; import java.io.IOException; import java.io.InputStream; import java.io.InvalidClassException; import java.io.ObjectInputStream; import java.io.ObjectOutputStream; import java.io.ObjectStreamClass; import java.io.OutputStream; import java.io.Serializable; import java.lang.reflect.Field; import java.lang.reflect.Method; import java.util.prefs.Preferences; import javax.json.bind.Jsonb; import javax.json.bind.JsonbBuilder; import javax.json.bind.JsonbConfig; import javax.json.bind.JsonbException; import javax.json.bind.config.PropertyVisibilityStrategy; import org.netbeans.api.project.Project; import org.netbeans.api.project.ProjectUtils; import org.openide.util.Exceptions; public class PreferenceUtils { private final static Jsonb JSONB = JsonbBuilder.create( new JsonbConfig().withPropertyVisibilityStrategy(new PropertyVisibilityStrategy() { @Override public boolean isVisible(Field field) { return true; } @Override public boolean isVisible(Method method) { return false; } }) ); private static void serialize(Serializable obj, OutputStream outputStream) { if (outputStream == null) { throw new IllegalArgumentException("The OutputStream must not be null"); } ObjectOutputStream out = null; try { // stream closed in the finally out = new ObjectOutputStream(outputStream); out.writeObject(obj); } catch (IOException ex) { throw new IllegalStateException(ex); } finally { try { if (out != null) { out.close(); } } catch (IOException ex) { // ignore close exception } } } private static byte[] serialize(Serializable obj) { ByteArrayOutputStream baos = new ByteArrayOutputStream(512); serialize(obj, baos); return baos.toByteArray(); } private static Object deserialize(InputStream inputStream, ClassLoader classLoader) throws InvalidClassException { if (inputStream == null) { throw new IllegalArgumentException("The InputStream must not be null"); } ObjectInputStream in = null; try { // stream closed in the finally in = new ClassLoaderObjectInputStream(classLoader, inputStream); return in.readObject(); } catch (ClassNotFoundException ex) { throw new IllegalStateException(ex); } catch (InvalidClassException ex) { throw ex; } catch (IOException ex) { throw new IllegalStateException(ex); } finally { try { if (in != null) { in.close(); } } catch (IOException ex) { // ignore close exception } } } private static Object deserialize(byte[] objectData, ClassLoader classLoader) throws InvalidClassException { if (objectData == null) { throw new IllegalArgumentException("The byte[] must not be null"); } ByteArrayInputStream bais = new ByteArrayInputStream(objectData); return deserialize(bais, classLoader); } public static <T> T get(Project project, Class<T> _class) { Preferences pref = ProjectUtils.getPreferences(project, _class, true); return get(pref, _class); } public static <T> T get(Preferences pref, Class<T> _class) { T newInstance = null; try { newInstance = _class.newInstance(); return (T) JSONB.fromJson( pref.get( kebabCase(_class.getSimpleName()), JSONB.toJson(newInstance) ), _class ); } catch(JsonbException ex){ Exceptions.printStackTrace(ex); return newInstance; } catch (InstantiationException | IllegalAccessException ex) { Exceptions.printStackTrace(ex); } return null; } public static <T> void set(Project project, T t) { Preferences pref = ProjectUtils.getPreferences(project, t.getClass(), true); set(pref, t); } public static <T> void set(Preferences pref, T t) { pref.put(kebabCase(t.getClass().getSimpleName()), JSONB.toJson(t)); } } class ClassLoaderObjectInputStream extends ObjectInputStream { private final ClassLoader classLoader; public ClassLoaderObjectInputStream(ClassLoader classLoader, InputStream in) throws IOException { super(in); this.classLoader = classLoader; } @Override protected Class<?> resolveClass(ObjectStreamClass desc) throws IOException, ClassNotFoundException { try { String name = desc.getName(); return Class.forName(name, false, classLoader); } catch (ClassNotFoundException e) { return super.resolveClass(desc); } } }