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package com.puppycrawl.tools.checkstyle.checks.indentation; |
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import com.google.common.collect.Maps; |
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import com.puppycrawl.tools.checkstyle.api.DetailAST; |
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import com.puppycrawl.tools.checkstyle.api.TokenTypes; |
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import java.lang.reflect.Constructor; |
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import java.lang.reflect.InvocationTargetException; |
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import java.util.Map; |
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import java.util.Set; |
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import org.apache.commons.logging.Log; |
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import org.apache.commons.logging.LogFactory; |
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public class HandlerFactory |
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{ |
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39 | 1 | private static final Log LOG = |
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LogFactory.getLog("com.puppycrawl.tools.checkstyle.checks.indentation"); |
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45 | 33 | private final Map<Integer, Constructor<?>> mTypeHandlers = |
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Maps.newHashMap(); |
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private void register(int aType, Class<?> aHandlerClass) |
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{ |
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try { |
59 | 1287 | final Constructor<?> ctor = aHandlerClass |
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.getConstructor(new Class[] {IndentationCheck.class, |
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DetailAST.class, |
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ExpressionHandler.class, |
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}); |
64 | 1287 | mTypeHandlers.put(aType, ctor); |
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} |
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67 | 0 | catch (final NoSuchMethodException e) { |
68 | 0 | throw new RuntimeException("couldn't find ctor for " |
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+ aHandlerClass); |
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} |
71 | 0 | catch (final SecurityException e) { |
72 | 0 | LOG.debug("couldn't find ctor for " + aHandlerClass, e); |
73 | 0 | throw new RuntimeException("couldn't find ctor for " |
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+ aHandlerClass); |
75 | 1287 | } |
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77 | 1287 | } |
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public HandlerFactory() |
81 | 33 | { |
82 | 33 | register(TokenTypes.CASE_GROUP, CaseHandler.class); |
83 | 33 | register(TokenTypes.LITERAL_SWITCH, SwitchHandler.class); |
84 | 33 | register(TokenTypes.SLIST, SlistHandler.class); |
85 | 33 | register(TokenTypes.PACKAGE_DEF, PackageDefHandler.class); |
86 | 33 | register(TokenTypes.LITERAL_ELSE, ElseHandler.class); |
87 | 33 | register(TokenTypes.LITERAL_IF, IfHandler.class); |
88 | 33 | register(TokenTypes.LITERAL_TRY, TryHandler.class); |
89 | 33 | register(TokenTypes.LITERAL_CATCH, CatchHandler.class); |
90 | 33 | register(TokenTypes.LITERAL_FINALLY, FinallyHandler.class); |
91 | 33 | register(TokenTypes.LITERAL_DO, DoWhileHandler.class); |
92 | 33 | register(TokenTypes.LITERAL_WHILE, WhileHandler.class); |
93 | 33 | register(TokenTypes.LITERAL_FOR, ForHandler.class); |
94 | 33 | register(TokenTypes.METHOD_DEF, MethodDefHandler.class); |
95 | 33 | register(TokenTypes.CTOR_DEF, MethodDefHandler.class); |
96 | 33 | register(TokenTypes.CLASS_DEF, ClassDefHandler.class); |
97 | 33 | register(TokenTypes.ENUM_DEF, ClassDefHandler.class); |
98 | 33 | register(TokenTypes.OBJBLOCK, ObjectBlockHandler.class); |
99 | 33 | register(TokenTypes.INTERFACE_DEF, ClassDefHandler.class); |
100 | 33 | register(TokenTypes.IMPORT, ImportHandler.class); |
101 | 33 | register(TokenTypes.ARRAY_INIT, ArrayInitHandler.class); |
102 | 33 | register(TokenTypes.METHOD_CALL, MethodCallHandler.class); |
103 | 33 | register(TokenTypes.CTOR_CALL, MethodCallHandler.class); |
104 | 33 | register(TokenTypes.LABELED_STAT, LabelHandler.class); |
105 | 33 | register(TokenTypes.STATIC_INIT, StaticInitHandler.class); |
106 | 33 | register(TokenTypes.INSTANCE_INIT, SlistHandler.class); |
107 | 33 | register(TokenTypes.ASSIGN, AssignHandler.class); |
108 | 33 | register(TokenTypes.PLUS_ASSIGN, AssignHandler.class); |
109 | 33 | register(TokenTypes.MINUS_ASSIGN, AssignHandler.class); |
110 | 33 | register(TokenTypes.STAR_ASSIGN, AssignHandler.class); |
111 | 33 | register(TokenTypes.DIV_ASSIGN, AssignHandler.class); |
112 | 33 | register(TokenTypes.MOD_ASSIGN, AssignHandler.class); |
113 | 33 | register(TokenTypes.SR_ASSIGN, AssignHandler.class); |
114 | 33 | register(TokenTypes.BSR_ASSIGN, AssignHandler.class); |
115 | 33 | register(TokenTypes.SL_ASSIGN, AssignHandler.class); |
116 | 33 | register(TokenTypes.BAND_ASSIGN, AssignHandler.class); |
117 | 33 | register(TokenTypes.BXOR_ASSIGN, AssignHandler.class); |
118 | 33 | register(TokenTypes.BOR_ASSIGN, AssignHandler.class); |
119 | 33 | register(TokenTypes.VARIABLE_DEF, MemberDefHandler.class); |
120 | 33 | register(TokenTypes.LITERAL_NEW, NewHandler.class); |
121 | 33 | } |
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public boolean isHandledType(int aType) |
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{ |
131 | 6532 | final Set<Integer> typeSet = mTypeHandlers.keySet(); |
132 | 6532 | return typeSet.contains(aType); |
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} |
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public int[] getHandledTypes() |
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{ |
142 | 33 | final Set<Integer> typeSet = mTypeHandlers.keySet(); |
143 | 33 | final int[] types = new int[typeSet.size()]; |
144 | 33 | int index = 0; |
145 | 33 | for (final Integer val : typeSet) { |
146 | 1287 | types[index++] = val; |
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} |
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149 | 33 | return types; |
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} |
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public ExpressionHandler getHandler(IndentationCheck aIndentCheck, |
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DetailAST aAst, ExpressionHandler aParent) |
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{ |
164 | 1801 | final ExpressionHandler handler = |
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mCreatedHandlers.get(aAst); |
166 | 1801 | if (handler != null) { |
167 | 25 | return handler; |
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} |
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170 | 1776 | if (aAst.getType() == TokenTypes.METHOD_CALL) { |
171 | 278 | return createMethodCallHandler(aIndentCheck, aAst, aParent); |
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} |
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174 | 1498 | ExpressionHandler expHandler = null; |
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try { |
176 | 1498 | final Constructor<?> handlerCtor = |
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mTypeHandlers.get(aAst.getType()); |
178 | 1498 | if (handlerCtor != null) { |
179 | 1498 | expHandler = (ExpressionHandler) handlerCtor.newInstance( |
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aIndentCheck, aAst, aParent); |
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} |
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} |
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184 | 0 | catch (final InstantiationException e) { |
185 | 0 | LOG.debug("couldn't instantiate constructor for " + aAst, e); |
186 | 0 | throw new RuntimeException("couldn't instantiate constructor for " |
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+ aAst); |
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} |
189 | 0 | catch (final IllegalAccessException e) { |
190 | 0 | LOG.debug("couldn't access constructor for " + aAst, e); |
191 | 0 | throw new RuntimeException("couldn't access constructor for " |
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+ aAst); |
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} |
194 | 0 | catch (final InvocationTargetException e) { |
195 | 0 | LOG.debug("couldn't instantiate constructor for " + aAst, e); |
196 | 0 | throw new RuntimeException("couldn't instantiate constructor for " |
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+ aAst); |
198 | 1498 | } |
199 | 1498 | if (expHandler == null) { |
200 | 0 | throw new RuntimeException("no handler for type " + aAst.getType()); |
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} |
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203 | 1498 | return expHandler; |
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} |
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ExpressionHandler createMethodCallHandler(IndentationCheck aIndentCheck, |
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DetailAST aAst, ExpressionHandler aParent) |
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{ |
218 | 278 | ExpressionHandler theParent = aParent; |
219 | 278 | DetailAST ast = aAst.getFirstChild(); |
220 | 606 | while ((ast != null) && (ast.getType() == TokenTypes.DOT)) { |
221 | 328 | ast = ast.getFirstChild(); |
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} |
223 | 278 | if ((ast != null) && isHandledType(ast.getType())) { |
224 | 25 | theParent = getHandler(aIndentCheck, ast, theParent); |
225 | 25 | mCreatedHandlers.put(ast, theParent); |
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} |
227 | 278 | return new MethodCallHandler(aIndentCheck, aAst, theParent); |
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} |
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void clearCreatedHandlers() |
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{ |
233 | 33 | mCreatedHandlers.clear(); |
234 | 33 | } |
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237 | 33 | private final Map<DetailAST, ExpressionHandler> mCreatedHandlers = |
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Maps.newHashMap(); |
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} |