org.apache.harmony.security.utils.Array Maven / Gradle / Ivy
/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You 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.
*/
/**
* @author Vladimir N. Molotkov
* @version $Revision$
*/
package org.apache.harmony.security.utils;
/**
* Utility class for arrays
*
*/
public class Array {
// No instances of this class
private Array() {
}
public static String getBytesAsString(byte[] data) {
StringBuilder result = new StringBuilder(data.length * 3);
for (int i = 0; i < data.length; ++i) {
result.append(Byte.toHexString(data[i], false));
result.append(' ');
}
return result.toString();
}
/**
* Represents array as String
* for printing. Array length can be up to 32767
*
* @param array to be represented as String
*
* @return String representation of the array
*/
public static String toString(byte[] array, String prefix) {
// Prefixes to be added to the offset values
// in String toString(byte[], String) method
final String[] offsetPrefix = {
"",
"000",
"00",
"0",
""
};
StringBuilder sb = new StringBuilder();
StringBuilder charForm = new StringBuilder();
int i=0;
for (i=0; i 8) {
sb.append(' ');
}
sb.append(" ");
sb.append(charForm.toString());
sb.append('\n');
}
return sb.toString();
}
}