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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 com.android.contacts.common.util;
import android.content.ContentResolver;
import android.content.ContentUris;
import android.net.Uri;
import android.provider.Contacts;
import android.provider.ContactsContract;
import android.provider.ContactsContract.RawContacts;
/**
* Utility methods for the {@link ContactLoader}.
*/
public final class ContactLoaderUtils {
/** Static helper, not instantiable. */
private ContactLoaderUtils() {}
/**
* Transforms the given Uri and returns a Lookup-Uri that represents the contact.
* For legacy contacts, a raw-contact lookup is performed. An {@link IllegalArgumentException}
* can be thrown if the URI is null or the authority is not recognized.
*
* Do not call from the UI thread.
*/
@SuppressWarnings("deprecation")
public static Uri ensureIsContactUri(final ContentResolver resolver, final Uri uri)
throws IllegalArgumentException {
if (uri == null) throw new IllegalArgumentException("uri must not be null");
final String authority = uri.getAuthority();
// Current Style Uri?
if (ContactsContract.AUTHORITY.equals(authority)) {
final String type = resolver.getType(uri);
// Contact-Uri? Good, return it
if (ContactsContract.Contacts.CONTENT_ITEM_TYPE.equals(type)) {
return uri;
}
// RawContact-Uri? Transform it to ContactUri
if (RawContacts.CONTENT_ITEM_TYPE.equals(type)) {
final long rawContactId = ContentUris.parseId(uri);
return RawContacts.getContactLookupUri(resolver,
ContentUris.withAppendedId(RawContacts.CONTENT_URI, rawContactId));
}
// Anything else? We don't know what this is
throw new IllegalArgumentException("uri format is unknown");
}
// Legacy Style? Convert to RawContact
final String OBSOLETE_AUTHORITY = Contacts.AUTHORITY;
if (OBSOLETE_AUTHORITY.equals(authority)) {
// Legacy Format. Convert to RawContact-Uri and then lookup the contact
final long rawContactId = ContentUris.parseId(uri);
return RawContacts.getContactLookupUri(resolver,
ContentUris.withAppendedId(RawContacts.CONTENT_URI, rawContactId));
}
throw new IllegalArgumentException("uri authority is unknown");
}
}
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