/*
* Copyright 2015 JBoss, by Red Hat, Inc
*
* 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.uberfire.ext.editor.commons.backend.validation;
import java.io.File;
import java.io.IOException;
import javax.lang.model.SourceVersion;
import org.apache.commons.lang3.CharUtils;
import org.apache.commons.lang3.StringUtils;
public class ValidationUtils {
private static final char[] ILLEGAL_CHARACTERS = {'/', '\n', '\r', '\t', '\0', '\f', '`', '?', '*', '\\', '<', '>', '|', '\"', ':'};
public static boolean isFileName(final String value) {
//Null check
if (StringUtils.isBlank(value)) {
return false;
}
//Prefix and suffix "." causes issues
if (value.startsWith(".") || value.endsWith(".")) {
return false;
}
//Illegal character check
for (Character c : ILLEGAL_CHARACTERS) {
if (value.contains(c.toString())) {
return false;
}
}
final File f = new File(value);
try {
f.getCanonicalPath();
return true;
} catch (IOException e) {
return false;
}
}
public static boolean isJavaIdentifier(final String value) {
if (StringUtils.isBlank(value)) {
return false;
}
if (!SourceVersion.isIdentifier(value) || SourceVersion.isKeyword(value)) {
return false;
}
for (int i = 0; i < value.length(); i++) {
if (!CharUtils.isAsciiPrintable(value.charAt(i))) {
return false;
}
}
return true;
}
public static boolean isArtifactIdentifier(final String value) {
// See org.apache.maven.model.validation.DefaultModelValidator.java::ID_REGEX
return value != null && value.matches("[A-Za-z0-9_\\-.]+");
}
}