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| 1 | +/* |
| 2 | + * Copyright 2017 [AllenCoderr] |
| 3 | + * |
| 4 | + * Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | + * you may not use this file except in compliance with the License. |
| 6 | + * You may obtain a copy of the License at |
| 7 | + * |
| 8 | + * http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | + * |
| 10 | + * Unless required by applicable law or agreed to in writing, software |
| 11 | + * distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | + * See the License for the specific language governing permissions and |
| 14 | + * limitations under the License. |
| 15 | + */ |
| 16 | + |
| 17 | +package com.allen.apputils; |
| 18 | + |
| 19 | +import android.database.Cursor; |
| 20 | +import android.text.TextUtils; |
| 21 | + |
| 22 | +import java.io.BufferedInputStream; |
| 23 | +import java.io.BufferedOutputStream; |
| 24 | +import java.io.ByteArrayOutputStream; |
| 25 | +import java.io.Closeable; |
| 26 | +import java.io.File; |
| 27 | +import java.io.IOException; |
| 28 | +import java.io.InputStream; |
| 29 | +import java.io.InputStreamReader; |
| 30 | +import java.io.OutputStream; |
| 31 | +import java.io.OutputStreamWriter; |
| 32 | +import java.io.Reader; |
| 33 | +import java.io.Writer; |
| 34 | + |
| 35 | +public class IOUtil { |
| 36 | + |
| 37 | + private IOUtil() { |
| 38 | + } |
| 39 | + |
| 40 | + public static void closeQuietly(Closeable closeable) { |
| 41 | + if (closeable != null) { |
| 42 | + try { |
| 43 | + closeable.close(); |
| 44 | + } catch (Throwable ignored) { |
| 45 | + MLog.d(ignored.getMessage(), ignored); |
| 46 | + } |
| 47 | + } |
| 48 | + } |
| 49 | + |
| 50 | + public static void closeQuietly(Cursor cursor) { |
| 51 | + if (cursor != null) { |
| 52 | + try { |
| 53 | + cursor.close(); |
| 54 | + } catch (Throwable ignored) { |
| 55 | + MLog.d(ignored.getMessage(), ignored); |
| 56 | + } |
| 57 | + } |
| 58 | + } |
| 59 | + |
| 60 | + public static byte[] readBytes(InputStream in) throws IOException { |
| 61 | + if (!(in instanceof BufferedInputStream)) { |
| 62 | + in = new BufferedInputStream(in); |
| 63 | + } |
| 64 | + ByteArrayOutputStream out = null; |
| 65 | + try { |
| 66 | + out = new ByteArrayOutputStream(); |
| 67 | + byte[] buf = new byte[1024]; |
| 68 | + int len; |
| 69 | + while ((len = in.read(buf)) != -1) { |
| 70 | + out.write(buf, 0, len); |
| 71 | + } |
| 72 | + return out.toByteArray(); |
| 73 | + } finally { |
| 74 | + closeQuietly(out); |
| 75 | + } |
| 76 | + } |
| 77 | + |
| 78 | + public static byte[] readBytes(InputStream in, long skip, int size) throws IOException { |
| 79 | + byte[] result = null; |
| 80 | + if (skip > 0) { |
| 81 | + long skipped = 0; |
| 82 | + while (skip > 0 && (skipped = in.skip(skip)) > 0) { |
| 83 | + skip -= skipped; |
| 84 | + } |
| 85 | + } |
| 86 | + result = new byte[size]; |
| 87 | + for (int i = 0; i < size; i++) { |
| 88 | + result[i] = (byte) in.read(); |
| 89 | + } |
| 90 | + return result; |
| 91 | + } |
| 92 | + |
| 93 | + public static String readStr(InputStream in) throws IOException { |
| 94 | + return readStr(in, "UTF-8"); |
| 95 | + } |
| 96 | + |
| 97 | + public static String readStr(InputStream in, String charset) throws IOException { |
| 98 | + if (TextUtils.isEmpty(charset)) charset = "UTF-8"; |
| 99 | + |
| 100 | + if (!(in instanceof BufferedInputStream)) { |
| 101 | + in = new BufferedInputStream(in); |
| 102 | + } |
| 103 | + Reader reader = new InputStreamReader(in, charset); |
| 104 | + StringBuilder sb = new StringBuilder(); |
| 105 | + char[] buf = new char[1024]; |
| 106 | + int len; |
| 107 | + while ((len = reader.read(buf)) >= 0) { |
| 108 | + sb.append(buf, 0, len); |
| 109 | + } |
| 110 | + return sb.toString(); |
| 111 | + } |
| 112 | + |
| 113 | + public static void writeStr(OutputStream out, String str) throws IOException { |
| 114 | + writeStr(out, str, "UTF-8"); |
| 115 | + } |
| 116 | + |
| 117 | + public static void writeStr(OutputStream out, String str, String charset) throws IOException { |
| 118 | + if (TextUtils.isEmpty(charset)) charset = "UTF-8"; |
| 119 | + |
| 120 | + Writer writer = new OutputStreamWriter(out, charset); |
| 121 | + writer.write(str); |
| 122 | + writer.flush(); |
| 123 | + } |
| 124 | + |
| 125 | + public static void copy(InputStream in, OutputStream out) throws IOException { |
| 126 | + if (!(in instanceof BufferedInputStream)) { |
| 127 | + in = new BufferedInputStream(in); |
| 128 | + } |
| 129 | + if (!(out instanceof BufferedOutputStream)) { |
| 130 | + out = new BufferedOutputStream(out); |
| 131 | + } |
| 132 | + int len = 0; |
| 133 | + byte[] buffer = new byte[1024]; |
| 134 | + while ((len = in.read(buffer)) != -1) { |
| 135 | + out.write(buffer, 0, len); |
| 136 | + } |
| 137 | + out.flush(); |
| 138 | + } |
| 139 | + |
| 140 | + public static boolean deleteFileOrDir(File path) { |
| 141 | + if (path == null || !path.exists()) { |
| 142 | + return true; |
| 143 | + } |
| 144 | + if (path.isFile()) { |
| 145 | + return path.delete(); |
| 146 | + } |
| 147 | + File[] files = path.listFiles(); |
| 148 | + if (files != null) { |
| 149 | + for (File file : files) { |
| 150 | + deleteFileOrDir(file); |
| 151 | + } |
| 152 | + } |
| 153 | + return path.delete(); |
| 154 | + } |
| 155 | +} |
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