WorkspaceAgentOutputHandler.java

/*******************************************************************************
 * Copyright (c) 2012-2017 Codenvy, S.A.
 * 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:
 *   Codenvy, S.A. - initial API and implementation
 *******************************************************************************/
package org.eclipse.che.ide.workspace.events;

import com.google.inject.Inject;
import com.google.inject.Singleton;
import com.google.web.bindery.event.shared.EventBus;

import org.eclipse.che.api.core.jsonrpc.commons.RequestHandlerConfigurator;
import org.eclipse.che.ide.api.app.AppContext;
import org.eclipse.che.ide.api.workspace.event.EnvironmentOutputEvent;
import org.eclipse.che.ide.util.loging.Log;

import java.util.List;
import java.util.function.BiConsumer;

@Singleton
public class WorkspaceAgentOutputHandler {
    @Inject
    public void configureWorkspaceOutputMessageHandler(AppContext appContext, RequestHandlerConfigurator configurator, EventBus eventBus) {
        BiConsumer<String, List<String>> operation = (String endpointId, List<String> messages) -> {
            Log.debug(getClass(), "Received notification from endpoint: " + endpointId);

            if (appContext.getActiveRuntime() == null || appContext.getDevMachine() == null) {
                Log.error(getClass(), "Runtime or dev machine is not properly initialized for this action");
                return;
            }

            if (messages.isEmpty()) {
                Log.error(getClass(), "Received empty messages list");
                return;
            }

            eventBus.fireEvent(new EnvironmentOutputEvent(messages.get(0), appContext.getDevMachine().getDisplayName()));
        };

        configurator.newConfiguration()
                    .methodName("event:ws-agent-output:message")
                    .paramsAsListOfString()
                    .noResult()
                    .withConsumer(operation);
    }
}