michael@0: /* This Source Code Form is subject to the terms of the Mozilla Public
michael@0:  * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0:  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0: 
michael@0: package org.mozilla.gecko.sync.config;
michael@0: 
michael@0: import java.net.URI;
michael@0: 
michael@0: import org.mozilla.gecko.background.common.log.Logger;
michael@0: import org.mozilla.gecko.sync.SyncConfiguration;
michael@0: import org.mozilla.gecko.sync.net.AuthHeaderProvider;
michael@0: import org.mozilla.gecko.sync.net.BaseResource;
michael@0: import org.mozilla.gecko.sync.net.SyncStorageRecordRequest;
michael@0: import org.mozilla.gecko.sync.net.SyncStorageRequestDelegate;
michael@0: import org.mozilla.gecko.sync.net.SyncStorageResponse;
michael@0: 
michael@0: /**
michael@0:  * Bug 770785: when an Android Account is deleted, we need to (try to) delete
michael@0:  * the associated client GUID from the server's clients table.
michael@0:  * <p>
michael@0:  * This class provides a static method to do that.
michael@0:  */
michael@0: public class ClientRecordTerminator {
michael@0:   public static final String LOG_TAG = "ClientRecTerminator";
michael@0: 
michael@0:   protected ClientRecordTerminator() {
michael@0:     super(); // Stop this class from being instantiated.
michael@0:   }
michael@0: 
michael@0:   public static void deleteClientRecord(final SyncConfiguration config, final String clientGUID)
michael@0:     throws Exception {
michael@0: 
michael@0:     final String collection = "clients";
michael@0:     final URI wboURI = config.wboURI(collection, clientGUID);
michael@0: 
michael@0:     // Would prefer to break this out into a self-contained client library.
michael@0:     final SyncStorageRecordRequest r = new SyncStorageRecordRequest(wboURI);
michael@0:     r.delegate = new SyncStorageRequestDelegate() {
michael@0:       @Override
michael@0:       public AuthHeaderProvider getAuthHeaderProvider() {
michael@0:         return config.getAuthHeaderProvider();
michael@0:       }
michael@0: 
michael@0:       @Override
michael@0:       public String ifUnmodifiedSince() {
michael@0:         return null;
michael@0:       }
michael@0: 
michael@0:       @Override
michael@0:       public void handleRequestSuccess(SyncStorageResponse response) {
michael@0:         Logger.info(LOG_TAG, "Deleted client record with GUID " + clientGUID + " from server.");
michael@0:         BaseResource.consumeEntity(response);
michael@0:       }
michael@0: 
michael@0:       @Override
michael@0:       public void handleRequestFailure(SyncStorageResponse response) {
michael@0:         Logger.warn(LOG_TAG, "Failed to delete client record with GUID " + clientGUID + " from server.");
michael@0:         try {
michael@0:           Logger.warn(LOG_TAG, "Server error message was: " + response.getErrorMessage());
michael@0:         } catch (Exception e) {
michael@0:           // Do nothing.
michael@0:         }
michael@0:         BaseResource.consumeEntity(response);
michael@0:       }
michael@0: 
michael@0:       @Override
michael@0:       public void handleRequestError(Exception ex) {
michael@0:         // It could be that we don't have network access when trying
michael@0:         // to remove an Account; not much to be done in this situation.
michael@0:         Logger.error(LOG_TAG, "Got exception trying to delete client record with GUID " + clientGUID + " from server; ignoring.", ex);
michael@0:       }
michael@0:     };
michael@0: 
michael@0:     r.delete();
michael@0:   }
michael@0: }