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/*
* Copyright (C) 2010 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.provider;
import android.content.ContentUris;
import android.net.Uri;
import android.util.Log;
/**
* The PTP provider supports accessing content on PTP devices.
* Currently the provider supports:
* - enumerating the storage units, files and directories on PTP devices
* - deleting files and directories on PTP devices
* - importing a file from PTP device into the host device's storage
* and adding it to the media provider
*
* @hide
*/
public final class Ptp
{
private final static String TAG = "Ptp";
public static final String AUTHORITY = "ptp";
private static final String CONTENT_AUTHORITY_SLASH = "content://" + AUTHORITY + "/";
private static final String CONTENT_AUTHORITY_DEVICE_SLASH = "content://" + AUTHORITY + "/device/";
/**
* Contains list of all PTP devices
* The BaseColumns._ID column contains a hardware specific identifier for the attached
* USB device, and is not guaranteed to be persistent across USB disconnects.
*/
public static final class Device implements BaseColumns {
public static final Uri CONTENT_URI = Uri.parse(CONTENT_AUTHORITY_SLASH + "device");
public static Uri getContentUri(int deviceID) {
return Uri.parse(CONTENT_AUTHORITY_DEVICE_SLASH + deviceID);
}
/**
* The manufacturer of the device
* <P>Type: TEXT</P>
*/
public static final String MANUFACTURER = "manufacturer";
/**
* The model name of the device
* <P>Type: TEXT</P>
*/
public static final String MODEL = "model";
}
/**
* Contains list of storage units for an PTP device.
* The BaseColumns._ID column contains the PTP StorageID for the storage unit.
*/
public static final class Storage implements BaseColumns {
public static Uri getContentUri(int deviceID) {
return Uri.parse(CONTENT_AUTHORITY_DEVICE_SLASH + deviceID + "/storage");
}
public static Uri getContentUri(int deviceID, long storageID) {
return Uri.parse(CONTENT_AUTHORITY_DEVICE_SLASH + deviceID + "/storage/" + storageID);
}
/**
* Storage unit identifier
* <P>Type: TEXT</P>
*/
public static final String IDENTIFIER = "identifier";
/**
* Storage unit description
* <P>Type: TEXT</P>
*/
public static final String DESCRIPTION = "description";
}
/**
* Contains list of objects on a PTP device.
* The columns in this table correspond directly to the ObjectInfo dataset
* described in the PTP specification (PIMA 15740:2000).
* The BaseColumns._ID column contains the object's PTP ObjectHandle.
*/
public static final class Object implements BaseColumns {
public static Uri getContentUri(int deviceID, long objectID) {
return Uri.parse(CONTENT_AUTHORITY_DEVICE_SLASH + deviceID
+ "/object/" + objectID);
}
public static Uri getContentUriForObjectChildren(int deviceID, long objectID) {
return Uri.parse(CONTENT_AUTHORITY_DEVICE_SLASH + deviceID
+ "/object/" + objectID + "/child");
}
public static Uri getContentUriForStorageChildren(int deviceID, long storageID) {
return Uri.parse(CONTENT_AUTHORITY_DEVICE_SLASH + deviceID
+ "/storage/" + storageID + "/child");
}
/**
* Used for copying files from device to host.
* Constructs a Uri based on the ID of the device and object for the source file,
* and the path for the destination file.
* When passed to the ContentProvider.insert() method, the file will be transferred
* to the specified destination directory and insert() will return a content Uri
* for the new file in the MediaProvider.
* ContentProvider.insert() will throw IllegalArgumentException if the destination
* path is not in the external storage or internal media directory.
*/
public static Uri getContentUriForImport(int deviceID, long objectID, String destPath) {
if (destPath.length() == 0 || destPath.charAt(0) != '/') {
throw new IllegalArgumentException(
"destPath must be a full path in getContentUriForImport");
}
return Uri.parse(CONTENT_AUTHORITY_DEVICE_SLASH + deviceID
+ "/import/" + objectID + "?" + destPath);
}
/**
* The following columns correspond to the fields in the ObjectInfo dataset
* as described in the PTP specification.
*/
/**
* The ID of the storage unit containing the object.
* <P>Type: INTEGER</P>
*/
public static final String STORAGE_ID = "storage_id";
/**
* The object's format. Can be any of the valid PTP object formats
* as defined in the PTP specification.
* <P>Type: INTEGER</P>
*/
public static final String FORMAT = "format";
/**
* The protection status of the object.
* <P>Type: INTEGER</P>
*/
public static final String PROTECTION_STATUS = "protection_status";
/**
* The size of the object in bytes.
* <P>Type: INTEGER</P>
*/
public static final String SIZE = "size";
/**
* The object's thumbnail format. Can be any of the valid PTP object formats
* as defined in the PTP specification.
* <P>Type: INTEGER</P>
*/
public static final String THUMB_FORMAT = "thumb_format";
/**
* The size of the object's thumbnail in bytes.
* <P>Type: INTEGER</P>
*/
public static final String THUMB_SIZE = "thumb_size";
/**
* The width of the object's thumbnail in pixels.
* <P>Type: INTEGER</P>
*/
public static final String THUMB_WIDTH = "thumb_width";
/**
* The height of the object's thumbnail in pixels.
* <P>Type: INTEGER</P>
*/
public static final String THUMB_HEIGHT = "thumb_height";
/**
* The object's thumbnail.
* <P>Type: BLOB</P>
*/
public static final String THUMB = "thumb";
/**
* The width of the object in pixels.
* <P>Type: INTEGER</P>
*/
public static final String IMAGE_WIDTH = "image_width";
/**
* The height of the object in pixels.
* <P>Type: INTEGER</P>
*/
public static final String IMAGE_HEIGHT = "image_height";
/**
* The depth of the object in bits per pixel.
* <P>Type: INTEGER</P>
*/
public static final String IMAGE_DEPTH = "image_depth";
/**
* The ID of the object's parent, or zero if the object
* is in the root of its storage unit.
* <P>Type: INTEGER</P>
*/
public static final String PARENT = "parent";
/**
* The association type for a container object.
* <P>Type: INTEGER</P>
*/
public static final String ASSOCIATION_TYPE = "association_type";
/**
* Contains additional information about container objects.
* <P>Type: INTEGER</P>
*/
public static final String ASSOCIATION_DESC = "association_desc";
/**
* The sequence number of the object, typically used for an association
* containing images taken in sequence.
* <P>Type: INTEGER</P>
*/
public static final String SEQUENCE_NUMBER = "sequence_number";
/**
* The name of the object.
* <P>Type: TEXT</P>
*/
public static final String NAME = "name";
/**
* The date the object was created, in seconds since January 1, 1970.
* <P>Type: INTEGER</P>
*/
public static final String DATE_CREATED = "date_created";
/**
* The date the object was last modified, in seconds since January 1, 1970.
* <P>Type: INTEGER</P>
*/
public static final String DATE_MODIFIED = "date_modified";
/**
* A list of keywords associated with an object, separated by spaces.
* <P>Type: TEXT</P>
*/
public static final String KEYWORDS = "keywords";
}
}
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