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/**
 * Copyright 2018 Mike Hummel
 *
 * 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 de.mhus.cherry.reactive.karaf;

import org.apache.karaf.shell.api.action.Action;
import org.apache.karaf.shell.api.action.Command;
import org.apache.karaf.shell.api.action.Option;
import org.apache.karaf.shell.api.action.lifecycle.Service;

import de.mhus.cherry.reactive.model.engine.EProcess;
import de.mhus.cherry.reactive.osgi.ReactiveAdmin;
import de.mhus.lib.core.MApi;
import de.mhus.lib.core.MDate;
import de.mhus.lib.core.MLog;
import de.mhus.lib.core.console.ConsoleTable;
import de.mhus.lib.core.util.MUri;

@Command(scope = "reactive", name = "pls", description = "List processes")
@Service
public class CmdProcessList extends MLog implements Action {

	@Option(name="-a", aliases="--all", description="Print all versions (instead of active)",required=false)
	private boolean all;

	@Option(name="-p", aliases="--pools", description="Print also pools",required=false)
	private boolean pools;
	
	@Override
	public Object execute() throws Exception {
		
		ConsoleTable table = new ConsoleTable();
		table.fitToConsole();
		table.setHeaderValues("Registered", "Deployed", "Status","Info","Deployed");
		ReactiveAdmin api = MApi.lookup(ReactiveAdmin.class);
		for (String name : api.getAvailableProcesses()) {
			String deployName = api.getProcessDeployName(name);
			if (all || deployName != null) {
				String a = "undeployed";
				String deployTime = "";
				if (deployName != null) {
					boolean enabled = api.getEnginePersistence().isProcessEnabled(deployName);
					boolean active = api.getEnginePersistence().isProcessActive(deployName);
					a = (enabled ? "enabled" : "") + (active ? " active" : "");
					deployTime = MDate.toIso8601(api.getProcessDeployTime(deployName));
				}
				String info = api.getProcessInfo(name);
				table.addRowValues(name, deployName, a, info, deployTime);
				if (pools && deployName != null) {
					EProcess process = api.getEngine().getProcess(MUri.toUri("reactive://" + deployName));
					if (process != null) {
						for (String poolName : process.getPoolNames()) {
	//						EPool pool = process.getPool(poolName);
							table.addRowValues("> Pool:", poolName, "", "");
						}
					}
				}
			}
		}
		table.print(System.out);
		return null;
	}

}