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/**
* Copyright 2012-2014 Julien Eluard and contributors
* This project includes software developed by Julien Eluard: https://github.com/jeluard/
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.semver;
import java.io.PrintStream;
import java.util.Collections;
import java.util.LinkedList;
import java.util.List;
import org.osjava.jardiff.AbstractInfo;
import org.osjava.jardiff.ClassInfo;
import org.semver.Delta.Difference;
import org.semver.Delta.Change;
/**
*
* Helper methods to dump {@link Delta}.
*
*/
public class Dumper {
private Dumper() {
}
protected static String extractActionType(final Difference difference) {
final String actionType = difference.getClass().getSimpleName();
return actionType.endsWith("e")?actionType+"d":actionType+"ed";
}
protected static String extractInfoType(final AbstractInfo info) {
final String simpleClassName = info.getClass().getSimpleName();
return simpleClassName.substring(0, simpleClassName.indexOf("Info"));
}
protected static String extractDetails(final Difference difference) {
if (difference instanceof Change) {
final Change change = (Change) difference;
return extractDetails(difference.getInfo())+", access "+extractAccessDetails(difference.getInfo(), change.getModifiedInfo());
} else {
return extractDetails(difference.getInfo())+", access "+extractAccessDetails(difference.getInfo());
}
}
protected static String extractDetails(final AbstractInfo info) {
final StringBuilder builder = new StringBuilder();
if (!(info instanceof ClassInfo)) {
builder.append(info.getName());
if( null != info.getSignature() ) {
builder.append(", sig ").append(info.getSignature());
}
if( null != info.getDesc() ) {
builder.append(", desc ").append(info.getDesc());
}
}
return builder.toString();
}
protected static void accumulateAccessDetails(final String access, final boolean previousAccess, final boolean currentAccess, final List<String> added, final List<String> removed) {
if (previousAccess != currentAccess) {
if (previousAccess) {
removed.add(access);
} else {
added.add(access);
}
}
}
protected static String extractAccessDetails(final AbstractInfo previousInfo, final AbstractInfo currentInfo) {
final List<String> added = new LinkedList<String>();
final List<String> removed = new LinkedList<String>();
accumulateAccessDetails("abstract", previousInfo.isAbstract(), currentInfo.isAbstract(), added, removed);
accumulateAccessDetails("annotation", previousInfo.isAnnotation(), currentInfo.isAnnotation(), added, removed);
accumulateAccessDetails("bridge", previousInfo.isBridge(), currentInfo.isBridge(), added, removed);
accumulateAccessDetails("enum", previousInfo.isEnum(), currentInfo.isEnum(), added, removed);
accumulateAccessDetails("final", previousInfo.isFinal(), currentInfo.isFinal(), added, removed);
accumulateAccessDetails("interface", previousInfo.isInterface(), currentInfo.isInterface(), added, removed);
accumulateAccessDetails("native", previousInfo.isNative(), currentInfo.isNative(), added, removed);
accumulateAccessDetails("package-private", previousInfo.isPackagePrivate(), currentInfo.isPackagePrivate(), added, removed);
accumulateAccessDetails("private", previousInfo.isPrivate(), currentInfo.isPrivate(), added, removed);
accumulateAccessDetails("protected", previousInfo.isProtected(), currentInfo.isProtected(), added, removed);
accumulateAccessDetails("public", previousInfo.isPublic(), currentInfo.isPublic(), added, removed);
accumulateAccessDetails("static", previousInfo.isStatic(), currentInfo.isStatic(), added, removed);
accumulateAccessDetails("strict", previousInfo.isStrict(), currentInfo.isStrict(), added, removed);
accumulateAccessDetails("super", previousInfo.isSuper(), currentInfo.isSuper(), added, removed);
accumulateAccessDetails("synchronized", previousInfo.isSynchronized(), currentInfo.isSynchronized(), added, removed);
accumulateAccessDetails("synthetic", previousInfo.isSynthetic(), currentInfo.isSynthetic(), added, removed);
accumulateAccessDetails("transcient", previousInfo.isTransient(), currentInfo.isTransient(), added, removed);
accumulateAccessDetails("varargs", previousInfo.isVarargs(), currentInfo.isVarargs(), added, removed);
accumulateAccessDetails("volatile", previousInfo.isVolatile(), currentInfo.isVolatile(), added, removed);
final StringBuilder details = new StringBuilder();
if (!added.isEmpty()) {
details.append("added: ");
for (final String access : added) {
details.append(access).append(" ");
}
}
if (!removed.isEmpty()) {
details.append("removed: ");
for (final String access : removed) {
details.append(access).append(" ");
}
}
return details.toString().trim();
}
protected static void accumulateAccessDetails(final String access, final boolean hasAccess, final List<String> accessList) {
if (hasAccess) {
accessList.add(access);
}
}
protected static String extractAccessDetails(final AbstractInfo info) {
final List<String> accessList = new LinkedList<String>();
accumulateAccessDetails("abstract", info.isAbstract(), accessList);
accumulateAccessDetails("annotation", info.isAnnotation(), accessList);
accumulateAccessDetails("bridge", info.isBridge(), accessList);
accumulateAccessDetails("enum", info.isEnum(), accessList);
accumulateAccessDetails("final", info.isFinal(), accessList);
accumulateAccessDetails("interface", info.isInterface(), accessList);
accumulateAccessDetails("native", info.isNative(), accessList);
accumulateAccessDetails("package-private", info.isPackagePrivate(), accessList);
accumulateAccessDetails("private", info.isPrivate(), accessList);
accumulateAccessDetails("protected", info.isProtected(), accessList);
accumulateAccessDetails("public", info.isPublic(), accessList);
accumulateAccessDetails("static", info.isStatic(), accessList);
accumulateAccessDetails("strict", info.isStrict(), accessList);
accumulateAccessDetails("super", info.isSuper(), accessList);
accumulateAccessDetails("synchronized", info.isSynchronized(), accessList);
accumulateAccessDetails("synthetic", info.isSynthetic(), accessList);
accumulateAccessDetails("transcient", info.isTransient(), accessList);
accumulateAccessDetails("varargs", info.isVarargs(), accessList);
accumulateAccessDetails("volatile", info.isVolatile(), accessList);
final StringBuilder details = new StringBuilder();
if (!accessList.isEmpty()) {
for (final String access : accessList) {
details.append(access).append(" ");
}
}
return details.toString().trim();
}
/**
*
* Dumps on {@link System#out} all differences.
*
* @param differences
*/
public static void dump(final Delta delta) {
dump(delta, System.out);
}
/**
* Dumps on <code>out</code> all differences.
*
* @param differences
* @param out
*/
public static void dump(final Delta delta, final PrintStream out) {
final List<Difference> sortedDifferences = new LinkedList<Difference>(delta.getDifferences());
Collections.sort(sortedDifferences);
dump(sortedDifferences, out);
}
/**
* Dumps on <code>out</code> all of the given sorted differences.
*
* @param sortedDifferences
* @param out
*/
public static void dump(final List<Difference> sortedDifferences, final PrintStream out) {
String currentClassName = "";
for (final Difference difference : sortedDifferences) {
if (!currentClassName.equals(difference.getClassName())) {
out.println("Class "+difference.getClassName());
}
out.println(" "+extractActionType(difference)+" "+extractInfoType(difference.getInfo())+" "+extractDetails(difference));
currentClassName = difference.getClassName();
}
}
}
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