1 /* 2 * Copyright (C) 2015 The Android Open Source Project 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 android.os.storage; 18 19 import android.annotation.NonNull; 20 import android.annotation.Nullable; 21 import android.content.res.Resources; 22 import android.os.Parcel; 23 import android.os.Parcelable; 24 import android.text.TextUtils; 25 import android.util.DebugUtils; 26 27 import com.android.internal.util.IndentingPrintWriter; 28 import com.android.internal.util.Preconditions; 29 30 import java.io.CharArrayWriter; 31 import java.util.Objects; 32 33 /** 34 * Information about a physical disk which may contain one or more 35 * {@link VolumeInfo}. 36 * 37 * @hide 38 */ 39 public class DiskInfo implements Parcelable { 40 public static final String ACTION_DISK_SCANNED = 41 "android.os.storage.action.DISK_SCANNED"; 42 public static final String EXTRA_DISK_ID = 43 "android.os.storage.extra.DISK_ID"; 44 public static final String EXTRA_VOLUME_COUNT = 45 "android.os.storage.extra.VOLUME_COUNT"; 46 47 public static final int FLAG_ADOPTABLE = 1 << 0; 48 public static final int FLAG_DEFAULT_PRIMARY = 1 << 1; 49 public static final int FLAG_SD = 1 << 2; 50 public static final int FLAG_USB = 1 << 3; 51 52 public final String id; 53 public final int flags; 54 public long size; 55 public String label; 56 /** Hacky; don't rely on this count */ 57 public int volumeCount; 58 public String sysPath; 59 60 public DiskInfo(String id, int flags) { 61 this.id = Preconditions.checkNotNull(id); 62 this.flags = flags; 63 } 64 65 public DiskInfo(Parcel parcel) { 66 id = parcel.readString(); 67 flags = parcel.readInt(); 68 size = parcel.readLong(); 69 label = parcel.readString(); 70 volumeCount = parcel.readInt(); 71 sysPath = parcel.readString(); 72 } 73 74 public @NonNull String getId() { 75 return id; 76 } 77 78 private boolean isInteresting(String label) { 79 if (TextUtils.isEmpty(label)) { 80 return false; 81 } 82 if (label.equalsIgnoreCase("ata")) { 83 return false; 84 } 85 if (label.toLowerCase().contains("generic")) { 86 return false; 87 } 88 if (label.toLowerCase().startsWith("usb")) { 89 return false; 90 } 91 if (label.toLowerCase().startsWith("multiple")) { 92 return false; 93 } 94 return true; 95 } 96 97 public @Nullable String getDescription() { 98 final Resources res = Resources.getSystem(); 99 if ((flags & FLAG_SD) != 0) { 100 if (isInteresting(label)) { 101 return res.getString(com.android.internal.R.string.storage_sd_card_label, label); 102 } else { 103 return res.getString(com.android.internal.R.string.storage_sd_card); 104 } 105 } else if ((flags & FLAG_USB) != 0) { 106 if (isInteresting(label)) { 107 return res.getString(com.android.internal.R.string.storage_usb_drive_label, label); 108 } else { 109 return res.getString(com.android.internal.R.string.storage_usb_drive); 110 } 111 } else { 112 return null; 113 } 114 } 115 116 public @Nullable String getShortDescription() { 117 final Resources res = Resources.getSystem(); 118 if (isSd()) { 119 return res.getString(com.android.internal.R.string.storage_sd_card); 120 } else if (isUsb()) { 121 return res.getString(com.android.internal.R.string.storage_usb_drive); 122 } else { 123 return null; 124 } 125 } 126 127 public boolean isAdoptable() { 128 return (flags & FLAG_ADOPTABLE) != 0; 129 } 130 131 public boolean isDefaultPrimary() { 132 return (flags & FLAG_DEFAULT_PRIMARY) != 0; 133 } 134 135 public boolean isSd() { 136 return (flags & FLAG_SD) != 0; 137 } 138 139 public boolean isUsb() { 140 return (flags & FLAG_USB) != 0; 141 } 142 143 @Override 144 public String toString() { 145 final CharArrayWriter writer = new CharArrayWriter(); 146 dump(new IndentingPrintWriter(writer, " ", 80)); 147 return writer.toString(); 148 } 149 150 public void dump(IndentingPrintWriter pw) { 151 pw.println("DiskInfo{" + id + "}:"); 152 pw.increaseIndent(); 153 pw.printPair("flags", DebugUtils.flagsToString(getClass(), "FLAG_", flags)); 154 pw.printPair("size", size); 155 pw.printPair("label", label); 156 pw.println(); 157 pw.printPair("sysPath", sysPath); 158 pw.decreaseIndent(); 159 pw.println(); 160 } 161 162 @Override 163 public DiskInfo clone() { 164 final Parcel temp = Parcel.obtain(); 165 try { 166 writeToParcel(temp, 0); 167 temp.setDataPosition(0); 168 return CREATOR.createFromParcel(temp); 169 } finally { 170 temp.recycle(); 171 } 172 } 173 174 @Override 175 public boolean equals(Object o) { 176 if (o instanceof DiskInfo) { 177 return Objects.equals(id, ((DiskInfo) o).id); 178 } else { 179 return false; 180 } 181 } 182 183 @Override 184 public int hashCode() { 185 return id.hashCode(); 186 } 187 188 public static final Creator<DiskInfo> CREATOR = new Creator<DiskInfo>() { 189 @Override 190 public DiskInfo createFromParcel(Parcel in) { 191 return new DiskInfo(in); 192 } 193 194 @Override 195 public DiskInfo[] newArray(int size) { 196 return new DiskInfo[size]; 197 } 198 }; 199 200 @Override 201 public int describeContents() { 202 return 0; 203 } 204 205 @Override 206 public void writeToParcel(Parcel parcel, int flags) { 207 parcel.writeString(id); 208 parcel.writeInt(this.flags); 209 parcel.writeLong(size); 210 parcel.writeString(label); 211 parcel.writeInt(volumeCount); 212 parcel.writeString(sysPath); 213 } 214 } 215
