/*
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*
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* * Copyright (C) 2019 Amit Shekhar
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* * Copyright (C) 2011 Android Open Source Project
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* *
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* * Licensed under the Apache License, Version 2.0 (the "License");
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* * you may not use this file except in compliance with the License.
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* * You may obtain a copy of the License at
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* *
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* * http://www.apache.org/licenses/LICENSE-2.0
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* *
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* * Unless required by applicable law or agreed to in writing, software
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* * distributed under the License is distributed on an "AS IS" BASIS,
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* * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* * See the License for the specific language governing permissions and
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* * limitations under the License.
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*
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*/
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package com.amitshekhar.utils;
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import java.io.UnsupportedEncodingException;
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/**
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* Created by amitshekhar on 06/02/17.
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*/
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public class ConverterUtils {
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private static final int MAX_BLOB_LENGTH = 512;
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private static final String UNKNOWN_BLOB_LABEL = "{blob}";
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private ConverterUtils() {
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// This class in not publicly instantiable
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}
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public static String blobToString(byte[] blob) {
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if (blob.length <= MAX_BLOB_LENGTH) {
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if (fastIsAscii(blob)) {
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try {
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return new String(blob, "US-ASCII");
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} catch (UnsupportedEncodingException ignored) {
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}
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}
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}
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return UNKNOWN_BLOB_LABEL;
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}
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public static boolean fastIsAscii(byte[] blob) {
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for (byte b : blob) {
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if ((b & ~0x7f) != 0) {
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return false;
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}
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}
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return true;
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}
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}
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