/* * Copyright 2015 - 2019 Anton Tananaev (anton@traccar.org) * * 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 org.traccar; import org.traccar.model.Command; import java.util.Map; public abstract class StringProtocolEncoder extends BaseProtocolEncoder { public StringProtocolEncoder(Protocol protocol) { super(protocol); } public interface ValueFormatter { String formatValue(String key, Object value); } protected String formatCommand(Command command, String format, ValueFormatter valueFormatter, String... keys) { String result = String.format(format, (Object[]) keys); result = result.replaceAll("\\{" + Command.KEY_UNIQUE_ID + "}", getUniqueId(command.getDeviceId())); for (Map.Entry<String, Object> entry : command.getAttributes().entrySet()) { String value = null; if (valueFormatter != null) { value = valueFormatter.formatValue(entry.getKey(), entry.getValue()); } if (value == null) { value = entry.getValue().toString(); } result = result.replaceAll("\\{" + entry.getKey() + "}", value); } return result; } protected String formatCommand(Command command, String format, String... keys) { return formatCommand(command, format, null, keys); } }