/**
* 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.hadoop.gateway.topology.builder.property.interpreter;
import org.apache.hadoop.gateway.GatewayResources;
import org.apache.hadoop.gateway.i18n.resources.ResourcesFactory;
import org.apache.hadoop.gateway.topology.Service;
import org.apache.hadoop.gateway.topology.Topology;
public class ServicePropertyInterpreter extends AbstractInterpreter {
private static final String SERVICE_URL = "url";
private static final String AGGREGATOR_PARAM = "param";
private static GatewayResources gatewayResources = ResourcesFactory.get(GatewayResources.class);
private Topology topology;
public ServicePropertyInterpreter(Topology topology) {
if (topology == null) {
throw new IllegalArgumentException(gatewayResources.topologyIsRequiredError());
}
this.topology = topology;
}
public void interpret(String token, String value) throws InterpretException {
int dotPosition = token.indexOf(DOT);
if (dotPosition == -1) {
throw new InterpretException(gatewayResources.unsupportedPropertyTokenError(token));
}
String serviceRole = token.substring(0, dotPosition);
if (serviceRole != null && serviceRole.isEmpty()) {
serviceRole = null;
}
String nextToken = token.substring(dotPosition + 1);
dotPosition = nextToken.indexOf(DOT);
if (dotPosition == -1) {
throw new InterpretException(gatewayResources.unsupportedPropertyTokenError(token));
}
String serviceName = nextToken.substring(0, dotPosition);
if (serviceName != null && serviceName.isEmpty()) {
serviceName = null;
}
nextToken = nextToken.substring(dotPosition + 1);
Service service = topology.getService(serviceRole, serviceName);
if (service == null) {
service = new Service();
service.setName(serviceName);
service.setRole(serviceRole);
topology.addService(service);
}
if (SERVICE_URL.equalsIgnoreCase(nextToken)) {
service.setUrl( value );
} else {
dotPosition = nextToken.indexOf(DOT);
if (dotPosition != -1) {
String aggregator = nextToken.substring(0, dotPosition);
nextToken = nextToken.substring(dotPosition + 1);
if (AGGREGATOR_PARAM.equalsIgnoreCase(aggregator)) {
new ServiceParameterPropertyInterpreter(service).interpret(nextToken, value);
} else {
throw new InterpretException(gatewayResources.unsupportedPropertyTokenError(token));
}
} else {
throw new InterpretException(gatewayResources.unsupportedPropertyTokenError(token));
}
}
}
}