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/*
* Copyright (C) 2015 The Android Open Source Project
*
* Licensed 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.
*/
package android.os.storage;
import android.annotation.NonNull;
import android.annotation.Nullable;
import android.compat.annotation.UnsupportedAppUsage;
import android.content.res.Resources;
import android.os.Build;
import android.os.Parcel;
import android.os.Parcelable;
import android.text.TextUtils;
import android.util.DebugUtils;
import com.android.internal.util.IndentingPrintWriter;
import com.android.internal.util.Preconditions;
import java.io.CharArrayWriter;
import java.util.Objects;
/**
* Information about a physical disk which may contain one or more
* {@link VolumeInfo}.
*
* @hide
*/
public class DiskInfo implements Parcelable {
public static final String ACTION_DISK_SCANNED =
"android.os.storage.action.DISK_SCANNED";
public static final String EXTRA_DISK_ID =
"android.os.storage.extra.DISK_ID";
public static final String EXTRA_VOLUME_COUNT =
"android.os.storage.extra.VOLUME_COUNT";
public static final int FLAG_ADOPTABLE = 1 << 0;
public static final int FLAG_DEFAULT_PRIMARY = 1 << 1;
public static final int FLAG_SD = 1 << 2;
public static final int FLAG_USB = 1 << 3;
/** The FLAG_STUB_VISIBLE is set from vold, which gets the flag from outside (e.g., ChromeOS) */
public static final int FLAG_STUB_VISIBLE = 1 << 6;
public final String id;
@UnsupportedAppUsage
public final int flags;
@UnsupportedAppUsage
public long size;
@UnsupportedAppUsage
public String label;
/** Hacky; don't rely on this count */
public int volumeCount;
public String sysPath;
public DiskInfo(String id, int flags) {
this.id = Preconditions.checkNotNull(id);
this.flags = flags;
}
@UnsupportedAppUsage(maxTargetSdk = Build.VERSION_CODES.P, trackingBug = 115609023)
public DiskInfo(Parcel parcel) {
id = parcel.readString();
flags = parcel.readInt();
size = parcel.readLong();
label = parcel.readString();
volumeCount = parcel.readInt();
sysPath = parcel.readString();
}
@UnsupportedAppUsage
public @NonNull String getId() {
return id;
}
private boolean isInteresting(String label) {
if (TextUtils.isEmpty(label)) {
return false;
}
if (label.equalsIgnoreCase("ata")) {
return false;
}
if (label.toLowerCase().contains("generic")) {
return false;
}
if (label.toLowerCase().startsWith("usb")) {
return false;
}
if (label.toLowerCase().startsWith("multiple")) {
return false;
}
return true;
}
@UnsupportedAppUsage
public @Nullable String getDescription() {
final Resources res = Resources.getSystem();
if ((flags & FLAG_SD) != 0) {
if (isInteresting(label)) {
return res.getString(com.android.internal.R.string.storage_sd_card_label, label);
} else {
return res.getString(com.android.internal.R.string.storage_sd_card);
}
} else if ((flags & FLAG_USB) != 0) {
if (isInteresting(label)) {
return res.getString(com.android.internal.R.string.storage_usb_drive_label, label);
} else {
return res.getString(com.android.internal.R.string.storage_usb_drive);
}
} else {
return null;
}
}
public @Nullable String getShortDescription() {
final Resources res = Resources.getSystem();
if (isSd()) {
return res.getString(com.android.internal.R.string.storage_sd_card);
} else if (isUsb()) {
return res.getString(com.android.internal.R.string.storage_usb_drive);
} else {
return null;
}
}
@UnsupportedAppUsage
public boolean isAdoptable() {
return (flags & FLAG_ADOPTABLE) != 0;
}
@UnsupportedAppUsage
public boolean isDefaultPrimary() {
return (flags & FLAG_DEFAULT_PRIMARY) != 0;
}
@UnsupportedAppUsage
public boolean isSd() {
return (flags & FLAG_SD) != 0;
}
@UnsupportedAppUsage
public boolean isUsb() {
return (flags & FLAG_USB) != 0;
}
public boolean isStubVisible() {
return (flags & FLAG_STUB_VISIBLE) != 0;
}
@Override
public String toString() {
final CharArrayWriter writer = new CharArrayWriter();
dump(new IndentingPrintWriter(writer, " ", 80));
return writer.toString();
}
public void dump(IndentingPrintWriter pw) {
pw.println("DiskInfo{" + id + "}:");
pw.increaseIndent();
pw.printPair("flags", DebugUtils.flagsToString(getClass(), "FLAG_", flags));
pw.printPair("size", size);
pw.printPair("label", label);
pw.println();
pw.printPair("sysPath", sysPath);
pw.decreaseIndent();
pw.println();
}
@Override
public DiskInfo clone() {
final Parcel temp = Parcel.obtain();
try {
writeToParcel(temp, 0);
temp.setDataPosition(0);
return CREATOR.createFromParcel(temp);
} finally {
temp.recycle();
}
}
@Override
public boolean equals(@Nullable Object o) {
if (o instanceof DiskInfo) {
return Objects.equals(id, ((DiskInfo) o).id);
} else {
return false;
}
}
@Override
public int hashCode() {
return id.hashCode();
}
@UnsupportedAppUsage(maxTargetSdk = Build.VERSION_CODES.P, trackingBug = 115609023)
public static final @android.annotation.NonNull Creator<DiskInfo> CREATOR = new Creator<DiskInfo>() {
@Override
public DiskInfo createFromParcel(Parcel in) {
return new DiskInfo(in);
}
@Override
public DiskInfo[] newArray(int size) {
return new DiskInfo[size];
}
};
@Override
public int describeContents() {
return 0;
}
@Override
public void writeToParcel(Parcel parcel, int flags) {
parcel.writeString(id);
parcel.writeInt(this.flags);
parcel.writeLong(size);
parcel.writeString(label);
parcel.writeInt(volumeCount);
parcel.writeString(sysPath);
}
}
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