Source Code Cross Referenced for AbstractDiffReporter.java in  » Code-Analyzer » Clirr » net » sf » clirr » core » internal » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » Code Analyzer » Clirr » net.sf.clirr.core.internal 
Source Cross Referenced  Class Diagram Java Document (Java Doc) 


001:        //////////////////////////////////////////////////////////////////////////////
002:        // Clirr: compares two versions of a java library for binary compatibility
003:        // Copyright (C) 2003 - 2005  Lars Kühne
004:        //
005:        // This library is free software; you can redistribute it and/or
006:        // modify it under the terms of the GNU Lesser General Public
007:        // License as published by the Free Software Foundation; either
008:        // version 2.1 of the License, or (at your option) any later version.
009:        //
010:        // This library is distributed in the hope that it will be useful,
011:        // but WITHOUT ANY WARRANTY; without even the implied warranty of
012:        // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
013:        // Lesser General Public License for more details.
014:        //
015:        // You should have received a copy of the GNU Lesser General Public
016:        // License along with this library; if not, write to the Free Software
017:        // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
018:        //////////////////////////////////////////////////////////////////////////////
019:
020:        package net.sf.clirr.core.internal;
021:
022:        import net.sf.clirr.core.ApiDifference;
023:        import net.sf.clirr.core.Severity;
024:        import net.sf.clirr.core.Message;
025:        import net.sf.clirr.core.spi.JavaType;
026:        import net.sf.clirr.core.spi.Field;
027:        import net.sf.clirr.core.spi.Method;
028:        import net.sf.clirr.core.spi.Scope;
029:
030:        public abstract class AbstractDiffReporter {
031:            private static final Message MSG_UNABLE_TO_DETERMINE_CLASS_SCOPE = new Message(
032:                    9000);
033:
034:            private ApiDiffDispatcher dispatcher;
035:
036:            public AbstractDiffReporter(ApiDiffDispatcher dispatcher) {
037:                this .dispatcher = dispatcher;
038:            }
039:
040:            protected final ApiDiffDispatcher getApiDiffDispatcher() {
041:                return dispatcher;
042:            }
043:
044:            protected final void log(Message msg, Severity severity,
045:                    String clazz, Method method, Field field, String[] args) {
046:                final ApiDifference diff = new ApiDifference(msg, severity,
047:                        clazz, null, null, args);
048:                getApiDiffDispatcher().fireDiff(diff);
049:            }
050:
051:            /**
052:             * Determine whether the severity of the problem should be reduced
053:             * to INFO because the specified class is package or private accessibility.
054:             * Clirr reports changes at level INFO for all private and package
055:             * scoped objects.
056:             * <p>
057:             * Note that the class passed here should always be from the <i>old</i>
058:             * class version, because we're checking whether <i>existing</i> code
059:             * would have been able to access it (potential compatibility problems)
060:             * or not.
061:             *
062:             * @param clazz is the class the change is being reported about.
063:             * @param sev is the severity that should be reported for public/protected
064:             * scoped classes.
065:             *
066:             * @return param sev if the class is public/protected, and Severity.INFO
067:             * if the class is package or private scope.
068:             */
069:            protected final Severity getSeverity(JavaType clazz, Severity sev) {
070:                Scope scope = clazz.getEffectiveScope();
071:
072:                if (scope.isLessVisibleThan(Scope.PROTECTED)) {
073:                    return Severity.INFO;
074:                } else {
075:                    return sev;
076:                }
077:            }
078:
079:            /**
080:             * Determine whether the severity of the problem should be reduced
081:             * to INFO because:
082:             * <ul>
083:             *  <li>the specified method is package or private accessibility, or</li>
084:             *  <li>the specified method is in a package or private class. </li
085:             * </ul>
086:             * <p>
087:             * Clirr reports changes at level INFO for all private and package
088:             * scoped objects.
089:             * <p>
090:             * Note that the method passed here should always be from the <i>old</i>
091:             * class version, because we're checking whether <i>existing</i> code
092:             * would have been able to access it (potential compatibility problems)
093:             * or not.
094:             *
095:             * @param clazz is the class containing the method of interest
096:             * @param method is the method the change is being reported about.
097:             * @param sev is the severity that should be reported for public/protected
098:             * scoped methods.
099:             *
100:             * @return param sev if the method is public/protected, and Severity.INFO
101:             * if the method is package or private scope.
102:             */
103:            protected final Severity getSeverity(JavaType clazz, Method method,
104:                    Severity sev) {
105:
106:                if (!method.getDeclaredScope().isLessVisibleThan(
107:                        Scope.PROTECTED)) {
108:                    return getSeverity(clazz, sev);
109:                } else {
110:                    return Severity.INFO;
111:                }
112:            }
113:
114:            /**
115:             * Determine whether the severity of the problem should be reduced
116:             * to INFO because:
117:             * <ul>
118:             * <li>the specified field is package or private accessibility, or</li>
119:             * <li>the specified field is in a package or private class. </li>
120:             * </ul>
121:             * <p>
122:             * Clirr reports changes at level INFO for all private and package
123:             * scoped objects.
124:             * <p>
125:             * Note that the field passed here should always be from the <i>old</i>
126:             * class version, because we're checking whether <i>existing</i> code
127:             * would have been able to access it (potential compatibility problems)
128:             * or not.
129:             *
130:             * @param clazz is the class containing the method of interest
131:             * @param field is the field the change is being reported about.
132:             * @param sev is the severity that should be reported for public/protected
133:             * scoped field.
134:             *
135:             * @return param sev if the field is public/protected, and Severity.INFO
136:             * if the field is package or private scope.
137:             */
138:            protected final Severity getSeverity(JavaType clazz, Field field,
139:                    Severity sev) {
140:                if (!field.getDeclaredScope()
141:                        .isLessVisibleThan(Scope.PROTECTED)) {
142:                    return getSeverity(clazz, sev);
143:                } else {
144:                    return Severity.INFO;
145:                }
146:            }
147:        }
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