diff options
Diffstat (limited to 'java/com/android/contacts/common/util/ContactLoaderUtils.java')
-rw-r--r-- | java/com/android/contacts/common/util/ContactLoaderUtils.java | 78 |
1 files changed, 78 insertions, 0 deletions
diff --git a/java/com/android/contacts/common/util/ContactLoaderUtils.java b/java/com/android/contacts/common/util/ContactLoaderUtils.java new file mode 100644 index 000000000..e30971721 --- /dev/null +++ b/java/com/android/contacts/common/util/ContactLoaderUtils.java @@ -0,0 +1,78 @@ +/* + * 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. + * + * <p>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"); + } +} |