/**
* Copyright 2015-2016 Red Hat, Inc, and individual contributors.
*
* 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.wildfly.swarm.topology.internal;
import org.jboss.shrinkwrap.api.Node;
import org.jboss.shrinkwrap.api.asset.StringAsset;
import org.jboss.shrinkwrap.impl.base.ArchiveBase;
import org.jboss.shrinkwrap.impl.base.AssignableBase;
import org.wildfly.swarm.msc.ServiceActivatorArchive;
import org.wildfly.swarm.spi.api.JARArchive;
import org.wildfly.swarm.topology.TopologyArchive;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collection;
import java.util.Collections;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.stream.Collectors;
/**
* @author Bob McWhirter
* @author Ken Finnigan
*/
public class TopologyArchiveImpl extends AssignableBase<ArchiveBase<?>> implements TopologyArchive {
public static final String SERVICE_ACTIVATOR_CLASS_NAME = "org.wildfly.swarm.topology.deployment.RegistrationAdvertiserActivator";
/**
* Constructs a new instance using the underlying specified archive, which is required
*
* @param archive
*/
public TopologyArchiveImpl(ArchiveBase<?> archive) throws IOException {
super(archive);
Node regConf = as(JARArchive.class).get(REGISTRATION_CONF);
if (regConf != null && regConf.getAsset() != null) {
try (BufferedReader reader = new BufferedReader(new InputStreamReader(regConf.getAsset().openStream()))) {
reader.lines().forEach(this::parseConfigLine);
}
}
}
@Override
public TopologyArchive advertise() {
return doAdvertise();
}
@Override
public TopologyArchive advertise(String serviceName) {
return advertise(serviceName, Collections.emptyList());
}
@Override
public TopologyArchive advertise(String serviceName, Collection<String> tags) {
tagsByService.put(serviceName, tags);
return doAdvertise();
}
@Override
public List<String> advertisements() {
List<String> serviceNames = new ArrayList<>(tagsByService.keySet());
return Collections.unmodifiableList(serviceNames);
}
@Override
public boolean hasAdvertised() {
return as(JARArchive.class).get(REGISTRATION_CONF) != null;
}
private void parseConfigLine(String line) {
line = line.trim();
if (!line.isEmpty()) {
List<String> split = new ArrayList<>(Arrays.asList(line.split(SERVICE_TAG_SEPARATOR)));
String serviceName = split.get(0);
List<String> tags = split.size() > 1
? split.subList(1, split.size())
: Collections.emptyList();
tagsByService.put(serviceName, tags);
}
}
protected List<String> getServiceNames() {
List<String> result = advertisements();
if (!result.isEmpty()) {
return result;
}
String archiveName = this.getArchive().getName();
int lastDotLoc = archiveName.lastIndexOf('.');
if (lastDotLoc > 0) {
return Collections.singletonList(archiveName.substring(0, lastDotLoc));
}
return Collections.singletonList(archiveName);
}
protected TopologyArchive doAdvertise() {
if (!as(ServiceActivatorArchive.class).containsServiceActivator(SERVICE_ACTIVATOR_CLASS_NAME)) {
as(ServiceActivatorArchive.class).addServiceActivator(SERVICE_ACTIVATOR_CLASS_NAME);
//as(JARArchive.class).addModule("org.wildfly.swarm.topology", "deployment");
}
StringBuilder registrationConf = new StringBuilder();
List<String> names = getServiceNames();
for (String name : names) {
Collection<String> tags = tagsByService.getOrDefault(name, Collections.emptyList());
registrationConf.append(name);
if (!tags.isEmpty()) {
registrationConf.append(" ")
.append(
tags.stream().collect(Collectors.joining(TAG_SEPARATOR))
);
}
registrationConf.append("\n");
}
as(JARArchive.class).add(new StringAsset(registrationConf.toString()), REGISTRATION_CONF);
return this;
}
private Map<String, Collection<String>> tagsByService = new HashMap<>();
}