/*
* ProActive Parallel Suite(TM):
* The Open Source library for parallel and distributed
* Workflows & Scheduling, Orchestration, Cloud Automation
* and Big Data Analysis on Enterprise Grids & Clouds.
*
* Copyright (c) 2007 - 2017 ActiveEon
* Contact: contact@activeeon.com
*
* This library is free software: you can redistribute it and/or
* modify it under the terms of the GNU Affero General Public License
* as published by the Free Software Foundation: version 3 of
* the License.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
* If needed, contact us to obtain a release under GPL Version 2 or 3
* or a different license than the AGPL.
*/
package org.ow2.proactive_grid_cloud_portal.cli.cmd;
import java.io.InputStream;
import java.io.InputStreamReader;
import javax.script.ScriptEngine;
import javax.script.ScriptException;
import org.ow2.proactive_grid_cloud_portal.cli.ApplicationContext;
import org.ow2.proactive_grid_cloud_portal.cli.CLIException;
public abstract class AbstractIModeCommand extends AbstractCommand implements Command {
public static final String IMODE = "org.ow2.proactive_grid_cloud_portal.cli.cmd.AbstractIModeCommand.imode";
public static final String TERMINATE = "org.ow2.proactive_grid_cloud_portal.cli.cmd.AbstractIModeCommand.terminate";
public AbstractIModeCommand() {
}
@Override
public void execute(ApplicationContext currentContext) throws CLIException {
currentContext.setProperty(IMODE, true);
ScriptEngine engine = currentContext.getEngine();
try {
// load supported functions
engine.eval(new InputStreamReader(script()));
} catch (ScriptException error) {
throw new CLIException(CLIException.REASON_OTHER, error);
}
while (!currentContext.getProperty(TERMINATE, Boolean.TYPE, false)) {
try {
String command = readLine(currentContext, "> ");
if (command == null) {
break; // EOF, exit interactive shell
}
engine.eval(command);
} catch (ScriptException se) {
handleError(String.format("An error occurred while executing the script:"), se, currentContext);
}
}
}
protected abstract InputStream script();
}