1 | /* |
---|
2 | * generated by Xtext |
---|
3 | */ |
---|
4 | package de.ugoe.cs.swe.bnftools.ui.internal; |
---|
5 | |
---|
6 | import java.util.Collections; |
---|
7 | import java.util.Map; |
---|
8 | |
---|
9 | import org.apache.log4j.Logger; |
---|
10 | import org.eclipse.ui.plugin.AbstractUIPlugin; |
---|
11 | import org.eclipse.xtext.ui.shared.SharedStateModule; |
---|
12 | import org.eclipse.xtext.util.Modules2; |
---|
13 | import org.osgi.framework.BundleContext; |
---|
14 | |
---|
15 | import com.google.common.collect.Maps; |
---|
16 | import com.google.inject.Guice; |
---|
17 | import com.google.inject.Injector; |
---|
18 | import com.google.inject.Module; |
---|
19 | |
---|
20 | /** |
---|
21 | * This class was generated. Customizations should only happen in a newly |
---|
22 | * introduced subclass. |
---|
23 | */ |
---|
24 | public class EbnfActivator extends AbstractUIPlugin { |
---|
25 | |
---|
26 | public static final String DE_UGOE_CS_SWE_BNFTOOLS_EBNF = "de.ugoe.cs.swe.bnftools.Ebnf"; |
---|
27 | |
---|
28 | private static final Logger logger = Logger.getLogger(EbnfActivator.class); |
---|
29 | |
---|
30 | private static EbnfActivator INSTANCE; |
---|
31 | |
---|
32 | private Map<String, Injector> injectors = Collections.synchronizedMap(Maps.<String, Injector> newHashMapWithExpectedSize(1)); |
---|
33 | |
---|
34 | @Override |
---|
35 | public void start(BundleContext context) throws Exception { |
---|
36 | super.start(context); |
---|
37 | INSTANCE = this; |
---|
38 | } |
---|
39 | |
---|
40 | @Override |
---|
41 | public void stop(BundleContext context) throws Exception { |
---|
42 | injectors.clear(); |
---|
43 | INSTANCE = null; |
---|
44 | super.stop(context); |
---|
45 | } |
---|
46 | |
---|
47 | public static EbnfActivator getInstance() { |
---|
48 | return INSTANCE; |
---|
49 | } |
---|
50 | |
---|
51 | public Injector getInjector(String language) { |
---|
52 | synchronized (injectors) { |
---|
53 | Injector injector = injectors.get(language); |
---|
54 | if (injector == null) { |
---|
55 | injectors.put(language, injector = createInjector(language)); |
---|
56 | } |
---|
57 | return injector; |
---|
58 | } |
---|
59 | } |
---|
60 | |
---|
61 | protected Injector createInjector(String language) { |
---|
62 | try { |
---|
63 | Module runtimeModule = getRuntimeModule(language); |
---|
64 | Module sharedStateModule = getSharedStateModule(); |
---|
65 | Module uiModule = getUiModule(language); |
---|
66 | Module mergedModule = Modules2.mixin(runtimeModule, sharedStateModule, uiModule); |
---|
67 | return Guice.createInjector(mergedModule); |
---|
68 | } catch (Exception e) { |
---|
69 | logger.error("Failed to create injector for " + language); |
---|
70 | logger.error(e.getMessage(), e); |
---|
71 | throw new RuntimeException("Failed to create injector for " + language, e); |
---|
72 | } |
---|
73 | } |
---|
74 | |
---|
75 | protected Module getRuntimeModule(String grammar) { |
---|
76 | if (DE_UGOE_CS_SWE_BNFTOOLS_EBNF.equals(grammar)) { |
---|
77 | return new de.ugoe.cs.swe.bnftools.EbnfRuntimeModule(); |
---|
78 | } |
---|
79 | |
---|
80 | throw new IllegalArgumentException(grammar); |
---|
81 | } |
---|
82 | |
---|
83 | protected Module getUiModule(String grammar) { |
---|
84 | if (DE_UGOE_CS_SWE_BNFTOOLS_EBNF.equals(grammar)) { |
---|
85 | return new de.ugoe.cs.swe.bnftools.ui.EbnfUiModule(this); |
---|
86 | } |
---|
87 | |
---|
88 | throw new IllegalArgumentException(grammar); |
---|
89 | } |
---|
90 | |
---|
91 | protected Module getSharedStateModule() { |
---|
92 | return new SharedStateModule(); |
---|
93 | } |
---|
94 | |
---|
95 | } |
---|