/*
* Copyright 2010 Proofpoint, Inc.
*
* 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 io.airlift.jmx.http.rpc;
import com.google.common.annotations.Beta;
import com.google.common.collect.ImmutableMap;
import com.google.inject.Binder;
import com.google.inject.Inject;
import com.google.inject.Module;
import com.google.inject.Provider;
import com.google.inject.Provides;
import com.google.inject.Scopes;
import com.google.inject.TypeLiteral;
import io.airlift.discovery.client.ServiceAnnouncement;
import io.airlift.discovery.client.ServiceAnnouncement.ServiceAnnouncementBuilder;
import io.airlift.http.server.HttpServerInfo;
import io.airlift.http.server.TheAdminServlet;
import io.airlift.node.NodeInfo;
import javax.servlet.Servlet;
import java.lang.annotation.Annotation;
import java.net.URI;
import java.util.Map;
import static io.airlift.configuration.ConfigurationModule.bindConfig;
import static io.airlift.discovery.client.DiscoveryBinder.discoveryBinder;
import static io.airlift.discovery.client.ServiceAnnouncement.serviceAnnouncement;
@Beta
public class JmxHttpRpcModule implements Module
{
private final Class<? extends Annotation> bindingAnnotation;
public JmxHttpRpcModule()
{
this(TheAdminServlet.class);
}
public JmxHttpRpcModule(Class<? extends Annotation> bindingAnnotation)
{
this.bindingAnnotation = bindingAnnotation;
}
@Override
public void configure(Binder binder)
{
binder.disableCircularProxies();
binder.bind(Servlet.class).annotatedWith(bindingAnnotation).to(MBeanServerServlet.class).in(Scopes.SINGLETON);
binder.bind(new TypeLiteral<Map<String, String>>() {}).annotatedWith(bindingAnnotation).toInstance(ImmutableMap.<String, String>of());
ServiceAnnouncementBuilder serviceAnnouncementBuilder = serviceAnnouncement("jmx-http-rpc");
discoveryBinder(binder).bindServiceAnnouncement(new JmxHttpRpcAnnouncementProvider(serviceAnnouncementBuilder));
bindConfig(binder).to(JmxHttpRpcConfig.class);
}
@Provides
public HttpMBeanServerCredentials createCredentials(JmxHttpRpcConfig config)
{
return new HttpMBeanServerCredentials(config.getUsername(), config.getPassword());
}
static class JmxHttpRpcAnnouncementProvider implements Provider<ServiceAnnouncement>
{
private final ServiceAnnouncementBuilder builder;
private HttpServerInfo httpServerInfo;
private NodeInfo nodeInfo;
public JmxHttpRpcAnnouncementProvider(ServiceAnnouncementBuilder serviceAnnouncementBuilder)
{
builder = serviceAnnouncementBuilder;
}
@Inject
public synchronized void setHttpServerInfo(HttpServerInfo httpServerInfo)
{
this.httpServerInfo = httpServerInfo;
}
@Inject
public synchronized void setNodeInfo(NodeInfo nodeInfo)
{
this.nodeInfo = nodeInfo;
}
@Override
public synchronized ServiceAnnouncement get()
{
if (httpServerInfo.getAdminUri() != null) {
URI adminUri = httpServerInfo.getAdminUri();
if (adminUri.getScheme().equals("http")) {
builder.addProperty("http", adminUri.toString());
builder.addProperty("http-external", httpServerInfo.getAdminExternalUri().toString());
} else if (adminUri.getScheme().equals("https")) {
builder.addProperty("https", adminUri.toString());
builder.addProperty("https-external", httpServerInfo.getAdminExternalUri().toString());
}
}
if (nodeInfo.getBinarySpec() != null) {
builder.addProperty("binary", nodeInfo.getBinarySpec());
}
if (nodeInfo.getConfigSpec() != null) {
builder.addProperty("config", nodeInfo.getConfigSpec());
}
return builder.build();
}
}
}