/*******************************************************************************
* Copyright (c) 2013, 2014 IBM Corporation and others
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* IBM Corporation - initial API and implementation
*******************************************************************************/
package org.eclipse.orion.server.cf.commands;
import java.net.URI;
import java.util.Iterator;
import javax.servlet.http.HttpServletResponse;
import org.apache.commons.httpclient.methods.*;
import org.eclipse.core.runtime.IStatus;
import org.eclipse.core.runtime.URIUtil;
import org.eclipse.orion.server.cf.CFProtocolConstants;
import org.eclipse.orion.server.cf.manifest.v2.ManifestParseTree;
import org.eclipse.orion.server.cf.manifest.v2.utils.ManifestConstants;
import org.eclipse.orion.server.cf.objects.App;
import org.eclipse.orion.server.cf.objects.Target;
import org.eclipse.orion.server.cf.utils.HttpUtil;
import org.eclipse.orion.server.cf.utils.MultiServerStatus;
import org.eclipse.orion.server.core.ServerStatus;
import org.eclipse.osgi.util.NLS;
import org.json.JSONObject;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
public class StartAppCommand extends AbstractCFCommand {
private final Logger logger = LoggerFactory.getLogger("org.eclipse.orion.server.cf"); //$NON-NLS-1$
private String commandName;
private App app;
private int timeout;
public StartAppCommand(Target target, App app, int timeout) {
super(target);
this.commandName = "Start App"; //$NON-NLS-1$
this.app = app;
this.timeout = timeout;
}
public StartAppCommand(Target target, App app) {
super(target);
this.commandName = "Start App"; //$NON-NLS-1$
this.app = app;
this.timeout = -1;
}
public ServerStatus _doIt() {
/* multi server status */
MultiServerStatus result = new MultiServerStatus();
try {
URI targetURI = URIUtil.toURI(target.getUrl());
String appUrl = this.app.getAppJSON().getString("url"); //$NON-NLS-1$
URI appURI = targetURI.resolve(appUrl);
PutMethod startMethod = new PutMethod(appURI.toString());
HttpUtil.configureHttpMethod(startMethod, target);
startMethod.setQueryString("inline-relations-depth=1"); //$NON-NLS-1$
JSONObject startCommand = new JSONObject();
startCommand.put("console", true); //$NON-NLS-1$
startCommand.put("state", "STARTED"); //$NON-NLS-1$ //$NON-NLS-2$
StringRequestEntity requestEntity = new StringRequestEntity(startCommand.toString(), CFProtocolConstants.JSON_CONTENT_TYPE, "UTF-8"); //$NON-NLS-1$
startMethod.setRequestEntity(requestEntity);
ServerStatus startStatus = HttpUtil.executeMethod(startMethod);
result.add(startStatus);
if (!result.isOK())
return result;
if (timeout < 0) {
/* extract user defined timeout if present */
ManifestParseTree manifest = app.getManifest();
ManifestParseTree timeoutNode = manifest.get(CFProtocolConstants.V2_KEY_APPLICATIONS).get(0).getOpt(CFProtocolConstants.V2_KEY_TIMEOUT);
timeout = (timeoutNode != null) ? Integer.parseInt(timeoutNode.getValue()) : ManifestConstants.DEFAULT_TIMEOUT;
}
/* long running task, keep track */
timeout = Math.min(timeout, ManifestConstants.MAX_TIMEOUT);
int attemptsLeft = timeout / 2;
String msg = NLS.bind("Can not start the application", commandName); //$NON-NLS-1$
ServerStatus getInstancesStatus = new ServerStatus(IStatus.ERROR, HttpServletResponse.SC_BAD_REQUEST, msg, null);
while (attemptsLeft > 0) {
/* two seconds */
Thread.sleep(2000);
// check instances
String appInstancesUrl = appUrl + "/instances"; //$NON-NLS-1$
URI appInstancesURI = targetURI.resolve(appInstancesUrl);
GetMethod getInstancesMethod = new GetMethod(appInstancesURI.toString());
HttpUtil.configureHttpMethod(getInstancesMethod, target);
getInstancesStatus = HttpUtil.executeMethod(getInstancesMethod);
if (!getInstancesStatus.isOK()) {
--attemptsLeft;
continue;
}
JSONObject appInstancesJSON = getInstancesStatus.getJsonData();
int instancesNo = appInstancesJSON.length();
int runningInstanceNo = 0;
int flappingInstanceNo = 0;
@SuppressWarnings("unchecked")
Iterator<String> instanceIt = appInstancesJSON.keys();
while (instanceIt.hasNext()) {
JSONObject instanceJSON = appInstancesJSON.getJSONObject(instanceIt.next());
if ("RUNNING".equals(instanceJSON.optString("state"))) //$NON-NLS-1$ //$NON-NLS-2$
runningInstanceNo++;
else if ("FLAPPING".equals(instanceJSON.optString("state"))) //$NON-NLS-1$ //$NON-NLS-2$
flappingInstanceNo++;
};
if (runningInstanceNo == instancesNo)
break;
if (flappingInstanceNo > 0)
break;
--attemptsLeft;
}
result.add(getInstancesStatus);
return result;
} catch (Exception e) {
String msg = NLS.bind("An error occured when performing operation {0}", commandName); //$NON-NLS-1$
logger.error(msg, e);
return new ServerStatus(IStatus.ERROR, HttpServletResponse.SC_INTERNAL_SERVER_ERROR, msg, e);
}
}
}