vmtest/src/main/java/org/apidesign/bck2brwsr/vmtest/impl/LaunchSetup.java
author Jaroslav Tulach <jaroslav.tulach@apidesign.org>
Wed, 06 Feb 2013 13:30:31 +0100
changeset 681 93196a859fc5
parent 384 269d99fd6421
permissions -rw-r--r--
Lazy initialization of the JavaScript runner to prevent needless compilation of the VM
     1 /**
     2  * Back 2 Browser Bytecode Translator
     3  * Copyright (C) 2012 Jaroslav Tulach <jaroslav.tulach@apidesign.org>
     4  *
     5  * This program is free software: you can redistribute it and/or modify
     6  * it under the terms of the GNU General Public License as published by
     7  * the Free Software Foundation, version 2 of the License.
     8  *
     9  * This program is distributed in the hope that it will be useful,
    10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
    11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    12  * GNU General Public License for more details.
    13  *
    14  * You should have received a copy of the GNU General Public License
    15  * along with this program. Look for COPYING file in the top folder.
    16  * If not, see http://opensource.org/licenses/GPL-2.0.
    17  */
    18 package org.apidesign.bck2brwsr.vmtest.impl;
    19 
    20 import java.io.IOException;
    21 import java.util.LinkedHashMap;
    22 import java.util.Map;
    23 import org.apidesign.bck2brwsr.launcher.Launcher;
    24 import org.testng.annotations.AfterGroups;
    25 import org.testng.annotations.BeforeGroups;
    26 
    27 /**
    28  *
    29  * @author Jaroslav Tulach <jtulach@netbeans.org>
    30  */
    31 public final class LaunchSetup {
    32     static LaunchSetup INSTANCE = new LaunchSetup();
    33     
    34     private Launcher js;
    35     private final Map<String,Launcher> brwsrs = new LinkedHashMap<>();
    36     
    37     private LaunchSetup() {
    38     }
    39     
    40     public Launcher javaScript() {
    41         return js(true);
    42     } 
    43     private synchronized  Launcher js(boolean create) {
    44         if (js == null && create) {
    45             js = Launcher.createJavaScript();
    46         }
    47         return js;
    48     } 
    49     
    50     public synchronized Launcher brwsr(String cmd) {
    51         Launcher s = brwsrs.get(cmd);
    52         if (s == null) {
    53             s = Launcher.createBrowser(cmd);
    54             brwsrs.put(cmd, s);
    55         }
    56         return s;
    57     }
    58 
    59     @BeforeGroups("run")
    60     public void initializeLauncher() throws IOException {
    61         if (js(false) != null) {
    62             js(true).initialize();
    63         }
    64         for (Launcher launcher : brwsrs.values()) {
    65             launcher.initialize();
    66         }
    67     }
    68 
    69     @AfterGroups("run")
    70     public void shutDownLauncher() throws IOException, InterruptedException {
    71         if (js(false) != null) {
    72             js(true).shutdown();
    73         }
    74         for (Launcher launcher : brwsrs.values()) {
    75             launcher.shutdown();
    76         }
    77     }
    78 }