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/*
* Copyright 2015 - 2016 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.jboss.netty.buffer.ChannelBuffers;
import org.jboss.netty.handler.codec.string.StringEncoder;
import org.traccar.database.ActiveDevice;
import org.traccar.model.Command;
import javax.xml.bind.DatatypeConverter;
import java.util.Arrays;
import java.util.Collection;
import java.util.HashSet;
import java.util.Set;
public abstract class BaseProtocol implements Protocol {
private final String name;
private final Set<String> supportedCommands = new HashSet<>();
public BaseProtocol(String name) {
this.name = name;
}
@Override
public String getName() {
return name;
}
public void setSupportedCommands(String... commands) {
supportedCommands.addAll(Arrays.asList(commands));
}
@Override
public Collection<String> getSupportedCommands() {
Set<String> commands = new HashSet<>(supportedCommands);
commands.add(Command.TYPE_CUSTOM);
return commands;
}
@Override
public void sendCommand(ActiveDevice activeDevice, Command command) {
if (supportedCommands.contains(command.getType())) {
activeDevice.write(command);
} else if (command.getType().equals(Command.TYPE_CUSTOM)) {
String data = (String) command.getAttributes().get(Command.KEY_DATA);
if (activeDevice.getChannel().getPipeline().get(StringEncoder.class) != null) {
activeDevice.write(data);
} else {
activeDevice.write(ChannelBuffers.wrappedBuffer(DatatypeConverter.parseHexBinary(data)));
}
} else {
throw new RuntimeException("Command " + command.getType() + " is not supported in protocol " + getName());
}
}
}
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