Source Code Cross Referenced for Binding.java in  » Testing » StoryTestIQ » fit » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » Testing » StoryTestIQ » fit 
Source Cross Referenced  Class Diagram Java Document (Java Doc) 


001:        // Copyright (C) 2003,2004,2005 by Object Mentor, Inc. All rights reserved.
002:        // Released under the terms of the GNU General Public License version 2 or later.
003:        package fit;
004:
005:        import fit.exception.*;
006:        import java.lang.reflect.*;
007:        import java.util.regex.*;
008:
009:        public abstract class Binding {
010:            private static Pattern methodPattern = Pattern
011:                    .compile("(.+)(?:\\(\\)|\\?|!)");
012:
013:            private static Pattern fieldPattern = Pattern
014:                    .compile("=?([^=]+)=?");
015:
016:            public TypeAdapter adapter;
017:
018:            public static Binding create(Fixture fixture, String name)
019:                    throws Throwable {
020:                Binding binding = null;
021:
022:                if (name.startsWith("="))
023:                    binding = new SaveBinding();
024:                else if (name.endsWith("="))
025:                    binding = new RecallBinding();
026:                else if (methodPattern.matcher(name).matches())
027:                    binding = new QueryBinding();
028:                else if (fieldPattern.matcher(name).matches())
029:                    binding = new SetBinding();
030:
031:                if (binding == null)
032:                    binding = new NullBinding();
033:                else
034:                    binding.adapter = makeAdapter(fixture, name);
035:
036:                return binding;
037:            }
038:
039:            private static TypeAdapter makeAdapter(Fixture fixture, String name)
040:                    throws Throwable {
041:                Matcher matcher = methodPattern.matcher(name);
042:                if (matcher.find())
043:                    return makeAdapterForMethod(name, fixture, matcher);
044:                else
045:                    return makeAdapterForField(name, fixture);
046:            }
047:
048:            private static TypeAdapter makeAdapterForField(String name,
049:                    Fixture fixture) {
050:                Field field = null;
051:                if (GracefulNamer.isGracefulName(name)) {
052:                    String simpleName = GracefulNamer.disgrace(name)
053:                            .toLowerCase();
054:                    field = findField(fixture, simpleName);
055:                } else {
056:                    try {
057:                        Matcher matcher = fieldPattern.matcher(name);
058:                        matcher.find();
059:                        String fieldName = matcher.group(1);
060:                        field = fixture.getTargetClass().getField(fieldName);
061:                    } catch (NoSuchFieldException e) {
062:                    }
063:                }
064:
065:                if (field == null)
066:                    throw new NoSuchFieldFitFailureException(name);
067:                return TypeAdapter.on(fixture, field);
068:            }
069:
070:            private static TypeAdapter makeAdapterForMethod(String name,
071:                    Fixture fixture, Matcher matcher) {
072:                Method method = null;
073:                if (GracefulNamer.isGracefulName(name)) {
074:                    String simpleName = GracefulNamer.disgrace(name)
075:                            .toLowerCase();
076:                    method = findMethod(fixture, simpleName);
077:                } else {
078:                    try {
079:                        String methodName = matcher.group(1);
080:                        method = fixture.getTargetClass().getMethod(methodName,
081:                                new Class[] {});
082:                    } catch (NoSuchMethodException e) {
083:                    }
084:                }
085:
086:                if (method == null)
087:                    throw new NoSuchMethodFitFailureException(name);
088:                return TypeAdapter.on(fixture, method);
089:            }
090:
091:            private static Field findField(Fixture fixture, String simpleName) {
092:                Field[] fields = fixture.getTargetClass().getFields();
093:                Field field = null;
094:                for (int i = 0; i < fields.length; i++) {
095:                    Field possibleField = fields[i];
096:                    if (simpleName
097:                            .equals(possibleField.getName().toLowerCase())) {
098:                        field = possibleField;
099:                        break;
100:                    }
101:                }
102:                return field;
103:            }
104:
105:            private static Method findMethod(Fixture fixture, String simpleName) {
106:                Method[] methods = fixture.getTargetClass().getMethods();
107:                Method method = null;
108:                for (int i = 0; i < methods.length; i++) {
109:                    Method possibleMethod = methods[i];
110:                    if (simpleName.equals(possibleMethod.getName()
111:                            .toLowerCase())) {
112:                        method = possibleMethod;
113:                        break;
114:                    }
115:                }
116:                return method;
117:            }
118:
119:            public abstract void doCell(Fixture fixture, Parse cell)
120:                    throws Throwable;
121:
122:            public static class SaveBinding extends Binding {
123:                public void doCell(Fixture fixture, Parse cell) {
124:                    try {
125:                        // TODO-MdM hmm... somehow this needs to regulated by the
126:                        // fixture.
127:                        if (fixture instanceof  ColumnFixture)
128:                            ((ColumnFixture) fixture).executeIfNeeded();
129:                        String symbolValue = adapter.get().toString();
130:                        String symbolName = cell.text();
131:                        Fixture.setSymbol(symbolName, symbolValue);
132:                        cell.addToBody(Fixture.gray(" = " + symbolValue));
133:                    } catch (Exception e) {
134:                        fixture.exception(cell, e);
135:                    }
136:                }
137:            }
138:
139:            public static class RecallBinding extends Binding {
140:                public void doCell(Fixture fixture, Parse cell)
141:                        throws Exception {
142:                    String symbolName = cell.text();
143:                    String value = (String) Fixture.getSymbol(symbolName);
144:                    if (value == null)
145:                        fixture.exception(cell, new FitFailureException(
146:                                "No such symbol: " + symbolName));
147:                    else
148:                        adapter.set(adapter.parse(value));
149:                }
150:            }
151:
152:            public static class SetBinding extends Binding {
153:                public void doCell(Fixture fixture, Parse cell)
154:                        throws Throwable {
155:                    if ("".equals(cell.text()))
156:                        fixture.handleBlankCell(cell, adapter);
157:                    adapter.set(adapter.parse(cell.text()));
158:                }
159:            }
160:
161:            public static class QueryBinding extends Binding {
162:                public void doCell(Fixture fixture, Parse cell) {
163:                    fixture.check(cell, adapter);
164:                }
165:            }
166:
167:            public static class NullBinding extends Binding {
168:                public void doCell(Fixture fixture, Parse cell) {
169:                    fixture.ignore(cell);
170:                }
171:            }
172:        }
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