StartUpActionsParser.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.client;

import com.google.gwt.user.client.Window;

import org.eclipse.che.ide.api.app.StartUpAction;
import org.eclipse.che.ide.util.loging.Log;

import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

/**
 * Utility class that parse IDE URL and get start up parameters form it according specific rules.
 * URL for parsing comes from {@link Window.Location}.
 *
 * For example:
 * after parsing URL like it http://localhost:8080/ide/dev6?action=createProject:projectName=test;projectType=maven
 * we will get list with one action {@link StartUpAction} with ID 'createProject' and two parameters
 *   'projectName' :: 'test'
 *   'projectType' :: 'maven'
 *
 * @author Vitalii Parfonov
 */
public class StartUpActionsParser {

    public static List<StartUpAction> getStartUpActions() {
        final Map<String, List<String>> parameterMap = Window.Location.getParameterMap();
        List<StartUpAction> startUpActions = new ArrayList<>();
        if (!parameterMap.isEmpty() && parameterMap.containsKey("action")) {
            final List<String> actions = parameterMap.get("action");
            for (String action : actions) {
                final StartUpAction startUpAction = parseActionQuery(action);
                startUpActions.add(startUpAction);
            }
        }
        return startUpActions;
    }

    protected static StartUpAction parseActionQuery(String action) {
        String actionId;
        String params;
        if (action.contains(":")) { //action has parameters
            final String[] split = action.split(":");
            actionId = split[0];
            params = split[1];
            return new StartUpAction(actionId, parseActionParameters(params));
        } else {
            return new StartUpAction(action, null);
        }
    }

    protected static Map<String, String> parseActionParameters(String actionParam) {
        Log.info(StartUpActionsParser.class, " parametersMap " + actionParam);
        final String[] parametersQuery = actionParam.split(";");
        Map<String, String> params = new HashMap<>(parametersQuery.length);
        for (int i = 0; i < parametersQuery.length; i++) {
            final String parameterString = parametersQuery[i];
            final String[] param = parameterString.split("=");
            final String paramName = param[0];
            if (param.length > 1) {
                final String paramValue = param[1];
                params.put(paramName, paramValue);
            } else {
                params.put(paramName, null);
            }
        }
        return params;
    }
}