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/*******************************************************************************
* Copyright (c) 2010 Boeing.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* Boeing - initial API and implementation
*******************************************************************************/
package org.eclipse.osee.framework.core.test.exception;
import java.io.File;
import java.util.ArrayList;
import java.util.Date;
import java.util.List;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
import org.junit.Assert;
import org.eclipse.osee.framework.jdk.core.text.tool.Find;
import org.eclipse.osee.framework.jdk.core.text.tool.FindResultsIterator;
import org.eclipse.osee.framework.jdk.core.util.Lib;
import org.junit.Test;
public class TestStringFormatMessages {
private static final String formatSuffix = "\\s*\\(\".*?%.*?\"(?<!\\\\\")[^;]+;";
private static final String throwPattern = "throw new\\s*\\w+" + formatSuffix;
private static final String formatPattern = "String.format" + formatSuffix;
private static final Pattern outerPattern = Pattern.compile("\"(.*?)\"(?<!\\\\\")([^;]+);");
private static final Pattern specifierPattern = Pattern.compile("%-?[\\d.]*(\\w)");
private FindResultsIterator getResultsIterator() {
List<String> patterns = new ArrayList<String>(2);
patterns.add(throwPattern);
patterns.add(formatPattern);
File rootSrcDir = new File("c:/UserData/git");
List<File> files = Lib.recursivelyListFiles(rootSrcDir, Pattern.compile(".+\\.java"));
Find app = new Find(patterns, files);
app.find(999999, true);
return app.getResults().iterator();
}
@Test
public void testFormatMessages() {
FindResultsIterator iterator = getResultsIterator();
while (iterator.hasNext()) {
Matcher matcher = outerPattern.matcher(iterator.currentRegion);
if (matcher.find()) {
examineArgs(matcher);
} else {
Assert.fail(iterator.currentRegion);
}
}
}
private void examineArgs(Matcher matcher) {
String formatMessage = matcher.group(1);
int argCount = countArguments(matcher.group(2));
Object[] args = new Object[argCount];
Matcher specifierMatcher = specifierPattern.matcher(formatMessage);
int index = 0;
while (specifierMatcher.find()) {
if (index >= argCount) {
Assert.fail(formatMessage);
}
String specifier = specifierMatcher.group(1);
if (specifier.equals("d")) {
args[index++] = 0;
} else if (specifier.equals("f")) {
args[index++] = 0.0f;
} else if (specifier.equalsIgnoreCase("s")) {
args[index++] = new Object();
} else if (specifier.equalsIgnoreCase("x")) {
args[index++] = Byte.valueOf((byte) 0);
} else if (specifier.equalsIgnoreCase("b")) {
args[index++] = true;
} else if (specifier.equalsIgnoreCase("c")) {
args[index++] = 'x';
} else if (specifier.equalsIgnoreCase("t")) {
args[index++] = new Date();
} else {
Assert.fail(String.format("[%s] has unknown format specifier [%s]", formatMessage, specifier));
}
}
if (argCount != index) {
Assert.assertEquals(formatMessage, index, argCount);
}
try {
String.format(formatMessage, args);
} catch (RuntimeException ex) {
Assert.fail(ex.toString());
}
}
private int countArguments(String argString) {
int argCount = 0;
int balance = 1;
char[] chars = argString.toCharArray();
for (int i = 0; i < chars.length; i++) {
char c = chars[i];
if (c == '(') {
balance++;
} else if (c == ')') {
balance--;
} else if (c == ',' && balance == 1) {
argCount++;
}
if (balance == 0) {
break;
}
}
return argCount;
}
}
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