/*
* Copyright 2017 Red Hat, Inc. and/or its affiliates.
*
* 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.uberfire.backend.server.plugins.processors;
import java.io.File;
import java.io.IOException;
import java.nio.file.Files;
import java.nio.file.Path;
import java.nio.file.Paths;
import java.util.Collection;
import java.util.HashMap;
import java.util.Map;
import javax.enterprise.event.Event;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.uberfire.backend.plugin.RuntimePlugin;
import org.uberfire.backend.plugin.RuntimePluginProcessor;
import org.uberfire.workbench.events.PluginAddedEvent;
import org.uberfire.workbench.events.PluginUpdatedEvent;
public abstract class AbstractRuntimePluginProcessor implements RuntimePluginProcessor {
private static final Logger LOG = LoggerFactory.getLogger(AbstractRuntimePluginProcessor.class);
final Map<String, RuntimePlugin> availableRuntimePlugins = new HashMap<>();
private Event<PluginAddedEvent> pluginAddedEvent;
private Event<PluginUpdatedEvent> pluginUpdatedEvent;
public AbstractRuntimePluginProcessor() {
}
public AbstractRuntimePluginProcessor(Event<PluginAddedEvent> pluginAddedEvent,
Event<PluginUpdatedEvent> pluginUpdatedEvent) {
this.pluginAddedEvent = pluginAddedEvent;
this.pluginUpdatedEvent = pluginUpdatedEvent;
}
@Override
public Collection<RuntimePlugin> getAvailableRuntimePlugins() {
return availableRuntimePlugins.values();
}
@Override
public void removeAll() {
availableRuntimePlugins.clear();
}
@Override
public boolean isRegistered(String pluginName) {
return availableRuntimePlugins.containsKey(pluginName);
}
@Override
public boolean shouldProcess(String pluginName) {
return pluginName.endsWith(getType().getExtension());
}
@Override
public void process(String pluginName,
String pluginDeploymentDir,
boolean notifyClients) {
if (!isRegistered(pluginName)) {
loadPlugin(pluginName,
pluginDeploymentDir);
if (notifyClients) {
pluginAddedEvent.fire(new PluginAddedEvent(pluginName));
}
} else {
if (notifyClients) {
pluginUpdatedEvent.fire(new PluginUpdatedEvent(pluginName));
}
}
}
private void loadPlugin(String pluginName,
String pluginDeploymentDir) {
try {
String pluginContent = getPluginContent(pluginName,
pluginDeploymentDir);
availableRuntimePlugins.put(pluginName,
new RuntimePlugin(getType(),
pluginName,
pluginContent));
} catch (IOException e) {
LOG.error("Failed to initialize " + pluginDeploymentDir,
e);
throw new RuntimeException(e);
}
}
String getPluginContent(String pluginName,
String pluginDeploymentDir) throws IOException {
Path path = Paths.get(pluginDeploymentDir + File.separator + pluginName);
return new String(Files.readAllBytes(path));
}
abstract PluginProcessorType getType();
}