/*
* Copyright (c) 2014 Red Hat, Inc. and others
*
* Red Hat 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.
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*/
package io.vertx.config.hocon;
import com.typesafe.config.Config;
import com.typesafe.config.ConfigFactory;
import com.typesafe.config.ConfigRenderOptions;
import io.vertx.config.spi.ConfigProcessor;
import io.vertx.core.AsyncResult;
import io.vertx.core.Handler;
import io.vertx.core.Vertx;
import io.vertx.core.buffer.Buffer;
import io.vertx.core.json.JsonObject;
import java.io.Reader;
import java.io.StringReader;
import static io.vertx.config.impl.spi.PropertiesConfigProcessor.closeQuietly;
A processor using Typesafe Conf to read Hocon files. It also support JSON and Properties.
More details on Hocon and the used library on the
Hocon documentation page.
Author: Clement Escoffier
/**
* A processor using Typesafe Conf to read Hocon files. It also support JSON and Properties.
* More details on Hocon and the used library on the
* <a href="https://github.com/typesafehub/config">Hocon documentation page</a>.
*
* @author <a href="http://escoffier.me">Clement Escoffier</a>
*/
public class HoconProcessor implements ConfigProcessor {
@Override
public String name() {
return "hocon";
}
@Override
public void process(Vertx vertx, JsonObject configuration, Buffer input, Handler<AsyncResult<JsonObject>> handler) {
// Use executeBlocking even if the bytes are in memory
// Indeed, HOCON resolution can read others files (includes).
vertx.executeBlocking(
future -> {
Reader reader = new StringReader(input.toString("UTF-8"));
try {
Config conf = ConfigFactory.parseReader(reader);
conf = conf.resolve();
String output = conf.root().render(ConfigRenderOptions.concise()
.setJson(true).setComments(false).setFormatted(false));
JsonObject json = new JsonObject(output);
future.complete(json);
} catch (Exception e) {
future.fail(e);
} finally {
closeQuietly(reader);
}
},
handler
);
}
}