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/*
* Copyright (C) 2011 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.mtp;
import android.content.Context;
import android.os.storage.StorageVolume;
/**
* This class represents a storage unit on an MTP device.
* Used only for MTP support in USB responder mode.
* MtpStorageInfo is used in MTP host mode
*
* @hide
*/
public class MtpStorage {
private final int mStorageId;
private final String mPath;
private final String mDescription;
private final long mReserveSpace;
private final boolean mRemovable;
private final long mMaxFileSize;
public MtpStorage(StorageVolume volume, Context context) {
mStorageId = volume.getStorageId();
mPath = volume.getPath();
mDescription = context.getResources().getString(volume.getDescriptionId());
mReserveSpace = volume.getMtpReserveSpace();
mRemovable = volume.isRemovable();
mMaxFileSize = volume.getMaxFileSize();
}
/**
* Returns the storage ID for the storage unit
*
* @return the storage ID
*/
public final int getStorageId() {
return mStorageId;
}
/**
* Generates a storage ID for storage of given index.
* Index 0 is for primary external storage
*
* @return the storage ID
*/
public static int getStorageId(int index) {
// storage ID is 0x00010001 for primary storage,
// then 0x00020001, 0x00030001, etc. for secondary storages
return ((index + 1) << 16) + 1;
}
/**
* Returns the file path for the storage unit's storage in the file system
*
* @return the storage file path
*/
public final String getPath() {
return mPath;
}
/**
* Returns the description string for the storage unit
*
* @return the storage unit description
*/
public final String getDescription() {
return mDescription;
}
/**
* Returns the amount of space to reserve on the storage file system.
* This can be set to a non-zero value to prevent MTP from filling up the entire storage.
*
* @return the storage unit description
*/
public final long getReserveSpace() {
return mReserveSpace;
}
/**
* Returns true if the storage is removable.
*
* @return is removable
*/
public final boolean isRemovable() {
return mRemovable;
}
/**
* Returns maximum file size for the storage, or zero if it is unbounded.
*
* @return maximum file size
*/
public long getMaxFileSize() {
return mMaxFileSize;
}
}
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