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