/**
* 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.Provider;
import org.apache.hadoop.gateway.topology.Topology;
public class ProviderPropertyInterpreter extends AbstractInterpreter {
private static final String PROVIDER_ENABLED = "enabled";
private static final String AGGREGATOR_PARAM = "param";
private static GatewayResources gatewayResources = ResourcesFactory.get(GatewayResources.class);
private Topology topology;
public ProviderPropertyInterpreter(Topology topology) {
if (topology == null) {
throw new IllegalArgumentException(gatewayResources.topologyIsRequiredError());
}
this.topology = topology;
}
@Override
public void interpret(String token, String value) throws InterpretException {
int dotPosition = token.indexOf(DOT);
if (dotPosition == -1) {
throw new InterpretException(gatewayResources.unsupportedPropertyTokenError(token));
}
String providerRole = token.substring(0, dotPosition);
if (providerRole != null && providerRole.isEmpty()) {
providerRole = null;
}
String nextToken = token.substring(dotPosition + 1);
dotPosition = nextToken.indexOf(DOT);
if (dotPosition == -1) {
throw new InterpretException(gatewayResources.unsupportedPropertyTokenError(token));
}
String providerName = nextToken.substring(0, dotPosition);
if (providerName != null && providerName.isEmpty()) {
providerName = null;
}
nextToken = nextToken.substring(dotPosition + 1);
Provider provider = topology.getProvider(providerRole, providerName);
if (provider == null) {
provider = new Provider();
provider.setName(providerName);
provider.setRole(providerRole);
topology.addProvider(provider);
}
if (PROVIDER_ENABLED.equalsIgnoreCase(nextToken)) {
provider.setEnabled(Boolean.valueOf(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 ProviderParameterPropertyInterpreter(provider).interpret(nextToken, value);
} else {
throw new InterpretException(gatewayResources.unsupportedPropertyTokenError(token));
}
} else {
throw new InterpretException(gatewayResources.unsupportedPropertyTokenError(token));
}
}
}
}