Mercurial > hg > release > thermostat-1.2
view web/common/src/main/java/com/redhat/thermostat/web/common/typeadapters/PreparedParametersTypeAdapter.java @ 1660:c6ae78b6f3ac
[Thermostat 1.2] Update copyright year to 2015
Reviewed-by: omajid
Review-thread: http://icedtea.classpath.org/pipermail/thermostat/2015-March/013127.html
PR2273
author | Severin Gehwolf <sgehwolf@redhat.com> |
---|---|
date | Wed, 11 Mar 2015 15:07:27 +0100 |
parents | 1744e42fc8b5 |
children |
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/* * Copyright 2012-2015 Red Hat, Inc. * * This file is part of Thermostat. * * Thermostat is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published * by the Free Software Foundation; either version 2, or (at your * option) any later version. * * Thermostat is distributed in the hope that it will be useful, but * WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * General Public License for more details. * * You should have received a copy of the GNU General Public License * along with Thermostat; see the file COPYING. If not see * <http://www.gnu.org/licenses/>. * * Linking this code with other modules is making a combined work * based on this code. Thus, the terms and conditions of the GNU * General Public License cover the whole combination. * * As a special exception, the copyright holders of this code give * you permission to link this code with independent modules to * produce an executable, regardless of the license terms of these * independent modules, and to copy and distribute the resulting * executable under terms of your choice, provided that you also * meet, for each linked independent module, the terms and conditions * of the license of that module. An independent module is a module * which is not derived from or based on this code. If you modify * this code, you may extend this exception to your version of the * library, but you are not obligated to do so. If you do not wish * to do so, delete this exception statement from your version. */ package com.redhat.thermostat.web.common.typeadapters; import java.io.IOException; import java.lang.reflect.Field; import com.google.gson.Gson; import com.google.gson.TypeAdapter; import com.google.gson.stream.JsonReader; import com.google.gson.stream.JsonToken; import com.google.gson.stream.JsonWriter; import com.redhat.thermostat.storage.core.PreparedParameter; import com.redhat.thermostat.storage.core.PreparedParameters; class PreparedParametersTypeAdapter extends TypeAdapter<PreparedParameters> { private final Gson gson; private final Field paramsField; PreparedParametersTypeAdapter(Gson gson) { this.gson = gson; this.paramsField = getParametersField(); } @Override public void write(JsonWriter out, PreparedParameters value) throws IOException { // handle null if (value == null) { out.nullValue(); return; } TypeAdapter<PreparedParameter[]> paramsTa = gson.getAdapter(PreparedParameter[].class); paramsTa.write(out, value.getParams()); } @Override public PreparedParameters read(JsonReader in) throws IOException { // handle null if (in.peek() == JsonToken.NULL) { in.nextNull(); return null; } TypeAdapter<PreparedParameter[]> paramsTa = gson.getAdapter(PreparedParameter[].class); PreparedParameters params = new PreparedParameters(0); PreparedParameter[] payload = paramsTa.read(in); setParamenters(params, payload); return params; } private void setParamenters(PreparedParameters params, PreparedParameter[] payload) { // Set parameters via reflection in order to not be forced to // introduce a public setter. try { paramsField.set(params, payload); } catch (SecurityException | IllegalArgumentException | IllegalAccessException e) { throw new IllegalStateException("Failed to set params field"); } } private Field getParametersField() { try { Field field = PreparedParameters.class.getDeclaredField("params"); field.setAccessible(true); return field; } catch (NoSuchFieldException | SecurityException e) { throw new IllegalStateException("params field not found"); } } }