mirror of
https://github.com/roytam1/palemoon27.git
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Moonchild
690 lines
22 KiB
Java
690 lines
22 KiB
Java
/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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package org.mozilla.gecko.reading;
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import java.io.IOException;
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import java.net.URI;
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import java.net.URISyntaxException;
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import java.security.GeneralSecurityException;
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import java.util.Queue;
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import java.util.concurrent.Executor;
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import org.mozilla.gecko.background.ReadingListConstants;
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import org.mozilla.gecko.background.common.log.Logger;
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import org.mozilla.gecko.reading.ReadingListResponse.ResponseFactory;
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import org.mozilla.gecko.sync.ExtendedJSONObject;
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import org.mozilla.gecko.sync.net.AuthHeaderProvider;
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import org.mozilla.gecko.sync.net.BaseResource;
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import org.mozilla.gecko.sync.net.BaseResourceDelegate;
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import org.mozilla.gecko.sync.net.BasicAuthHeaderProvider;
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import org.mozilla.gecko.sync.net.MozResponse;
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import org.mozilla.gecko.sync.net.Resource;
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import ch.boye.httpclientandroidlib.HttpResponse;
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import ch.boye.httpclientandroidlib.client.ClientProtocolException;
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import ch.boye.httpclientandroidlib.client.methods.HttpRequestBase;
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import ch.boye.httpclientandroidlib.impl.client.DefaultHttpClient;
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/**
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* This client exposes an API for the reading list service, documented at
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* https://github.com/mozilla-services/readinglist/
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*/
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public class ReadingListClient {
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static final String LOG_TAG = ReadingListClient.class.getSimpleName();
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private final AuthHeaderProvider auth;
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private final URI articlesURI; // .../articles
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private final URI articlesBaseURI; // .../articles/
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/**
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* Use a {@link BasicAuthHeaderProvider} for testing, and an FxA OAuth provider for the real service.
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*/
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public ReadingListClient(final URI serviceURI, final AuthHeaderProvider auth) {
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this.articlesURI = serviceURI.resolve("articles");
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this.articlesBaseURI = serviceURI.resolve("articles/");
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this.auth = auth;
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}
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private BaseResource getRelativeArticleResource(final String rel) {
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return new BaseResource(this.articlesBaseURI.resolve(rel));
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}
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private static final class DelegatingUploadResourceDelegate extends UploadResourceDelegate<ReadingListRecordResponse> {
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private final ClientReadingListRecord up;
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private final ReadingListRecordUploadDelegate uploadDelegate;
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DelegatingUploadResourceDelegate(Resource resource,
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AuthHeaderProvider auth,
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ResponseFactory<ReadingListRecordResponse> factory,
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ClientReadingListRecord up,
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ReadingListRecordUploadDelegate uploadDelegate) {
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super(resource, auth, factory);
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this.up = up;
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this.uploadDelegate = uploadDelegate;
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}
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@Override
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void onFailure(MozResponse response) {
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Logger.warn(LOG_TAG, "Upload got failure response " + response.httpResponse().getStatusLine());
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response.logResponseBody(LOG_TAG);
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if (response.getStatusCode() == 400) {
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// Error response.
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uploadDelegate.onBadRequest(up, response);
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} else {
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uploadDelegate.onFailure(up, response);
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}
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}
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@Override
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void onFailure(Exception ex) {
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Logger.warn(LOG_TAG, "Upload failed.", ex);
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uploadDelegate.onFailure(up, ex);
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}
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@Override
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void onSuccess(ReadingListRecordResponse response) {
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Logger.debug(LOG_TAG, "Upload: onSuccess: " + response.httpResponse().getStatusLine());
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final ServerReadingListRecord down;
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try {
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down = response.getRecord();
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Logger.debug(LOG_TAG, "Upload succeeded. Got GUID " + down.getGUID());
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} catch (Exception e) {
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uploadDelegate.onFailure(up, e);
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return;
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}
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uploadDelegate.onSuccess(up, response, down);
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}
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@Override
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void onSeeOther(ReadingListRecordResponse response) {
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uploadDelegate.onConflict(up, response);
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}
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}
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private static abstract class ReadingListResourceDelegate<T extends ReadingListResponse> extends BaseResourceDelegate {
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private final ReadingListResponse.ResponseFactory<T> factory;
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private final AuthHeaderProvider auth;
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public ReadingListResourceDelegate(Resource resource, AuthHeaderProvider auth, ReadingListResponse.ResponseFactory<T> factory) {
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super(resource);
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this.auth = auth;
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this.factory = factory;
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}
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abstract void onSuccess(T response);
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abstract void onNonSuccess(T response);
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abstract void onFailure(MozResponse response);
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abstract void onFailure(Exception ex);
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@Override
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public void handleHttpResponse(HttpResponse response) {
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final T resp = factory.getResponse(response);
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if (resp.wasSuccessful()) {
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onSuccess(resp);
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} else {
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onNonSuccess(resp);
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}
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}
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@Override
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public void handleTransportException(GeneralSecurityException e) {
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onFailure(e);
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}
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@Override
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public void handleHttpProtocolException(ClientProtocolException e) {
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onFailure(e);
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}
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@Override
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public void handleHttpIOException(IOException e) {
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onFailure(e);
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}
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@Override
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public String getUserAgent() {
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return ReadingListConstants.USER_AGENT;
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}
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@Override
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public AuthHeaderProvider getAuthHeaderProvider() {
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return auth;
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}
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@Override
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public void addHeaders(HttpRequestBase request, DefaultHttpClient client) {
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}
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}
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/**
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* An intermediate delegate class that handles all of the shared storage behavior,
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* such as handling If-Modified-Since.
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*/
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private static abstract class StorageResourceDelegate<T extends ReadingListResponse> extends ReadingListResourceDelegate<T> {
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private final long ifModifiedSince;
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public StorageResourceDelegate(Resource resource,
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AuthHeaderProvider auth,
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ReadingListResponse.ResponseFactory<T> factory,
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long ifModifiedSince) {
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super(resource, auth, factory);
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this.ifModifiedSince = ifModifiedSince;
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}
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@Override
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public void addHeaders(HttpRequestBase request, DefaultHttpClient client) {
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if (ifModifiedSince != -1L) {
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// TODO: format?
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request.addHeader("If-Modified-Since", "" + ifModifiedSince);
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}
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super.addHeaders(request, client);
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}
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}
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/**
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* Wraps the @{link ReadingListRecordDelegate} interface to yield a {@link StorageResourceDelegate}.
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*/
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private static abstract class RecordResourceDelegate<T extends ReadingListResponse> extends StorageResourceDelegate<T> {
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protected final ReadingListRecordDelegate recordDelegate;
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public RecordResourceDelegate(Resource resource,
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AuthHeaderProvider auth,
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ReadingListRecordDelegate recordDelegate,
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ReadingListResponse.ResponseFactory<T> factory,
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long ifModifiedSince) {
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super(resource, auth, factory, ifModifiedSince);
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this.recordDelegate = recordDelegate;
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}
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abstract void onNotFound(ReadingListResponse resp);
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@Override
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void onNonSuccess(T resp) {
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Logger.debug(LOG_TAG, "Got non-success record response " + resp.getStatusCode());
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resp.logResponseBody(LOG_TAG);
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switch (resp.getStatusCode()) {
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case 304:
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onNotModified(resp);
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break;
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case 404:
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onNotFound(resp);
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break;
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default:
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onFailure(resp);
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}
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}
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@Override
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void onFailure(MozResponse response) {
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recordDelegate.onFailure(response);
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}
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@Override
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void onFailure(Exception ex) {
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recordDelegate.onFailure(ex);
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}
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void onNotModified(T resp) {
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recordDelegate.onComplete(resp);
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}
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}
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private static final class SingleRecordResourceDelegate extends RecordResourceDelegate<ReadingListRecordResponse> {
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private final String guid;
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SingleRecordResourceDelegate(Resource resource,
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AuthHeaderProvider auth,
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ReadingListRecordDelegate recordDelegate,
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ResponseFactory<ReadingListRecordResponse> factory,
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long ifModifiedSince, String guid) {
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super(resource, auth, recordDelegate, factory, ifModifiedSince);
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this.guid = guid;
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}
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@Override
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void onSuccess(ReadingListRecordResponse response) {
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final ServerReadingListRecord record;
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try {
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record = response.getRecord();
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} catch (Exception e) {
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recordDelegate.onFailure(e);
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return;
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}
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recordDelegate.onRecordReceived(record);
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recordDelegate.onComplete(response);
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}
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@Override
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void onNotFound(ReadingListResponse resp) {
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recordDelegate.onRecordMissingOrDeleted(guid, resp);
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}
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}
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private static final class MultipleRecordResourceDelegate extends RecordResourceDelegate<ReadingListStorageResponse> {
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MultipleRecordResourceDelegate(Resource resource,
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AuthHeaderProvider auth,
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ReadingListRecordDelegate recordDelegate,
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ResponseFactory<ReadingListStorageResponse> factory,
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long ifModifiedSince) {
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super(resource, auth, recordDelegate, factory, ifModifiedSince);
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}
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@Override
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void onSuccess(ReadingListStorageResponse response) {
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try {
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final Iterable<ServerReadingListRecord> records = response.getRecords();
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for (ServerReadingListRecord readingListRecord : records) {
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recordDelegate.onRecordReceived(readingListRecord);
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}
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} catch (Exception e) {
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recordDelegate.onFailure(e);
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return;
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}
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recordDelegate.onComplete(response);
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}
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@Override
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void onNotFound(ReadingListResponse resp) {
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// Should not occur against articlesURI root.
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recordDelegate.onFailure(resp);
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}
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}
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private static abstract class UploadResourceDelegate<T extends ReadingListResponse> extends StorageResourceDelegate<T> {
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public UploadResourceDelegate(Resource resource,
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AuthHeaderProvider auth,
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ReadingListResponse.ResponseFactory<T> factory,
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long ifModifiedSince) {
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super(resource, auth, factory, ifModifiedSince);
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}
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public UploadResourceDelegate(Resource resource,
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AuthHeaderProvider auth,
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ReadingListResponse.ResponseFactory<T> factory) {
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this(resource, auth, factory, -1L);
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}
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@Override
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void onNonSuccess(T resp) {
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if (resp.getStatusCode() == 303) {
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onSeeOther(resp);
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return;
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}
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onFailure(resp);
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}
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abstract void onSeeOther(T resp);
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}
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/**
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* Recursively calls `patch` with items from the queue, delivering callbacks
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* to the provided delegate. Calls `onBatchDone` when the queue is exhausted.
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*
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* Uses the provided executor to flatten the recursive call stack.
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*/
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private abstract class BatchingUploadDelegate implements ReadingListRecordUploadDelegate {
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private final Queue<ClientReadingListRecord> queue;
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private final ReadingListRecordUploadDelegate batchUploadDelegate;
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private final Executor executor;
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BatchingUploadDelegate(Queue<ClientReadingListRecord> queue,
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ReadingListRecordUploadDelegate batchUploadDelegate,
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Executor executor) {
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this.queue = queue;
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this.batchUploadDelegate = batchUploadDelegate;
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this.executor = executor;
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}
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abstract void again(ClientReadingListRecord record);
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void next() {
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final ClientReadingListRecord record = queue.poll();
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executor.execute(new Runnable() {
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@Override
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public void run() {
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if (record == null) {
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batchUploadDelegate.onBatchDone();
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return;
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}
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again(record);
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}
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});
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}
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@Override
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public void onSuccess(ClientReadingListRecord up,
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ReadingListRecordResponse response,
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ServerReadingListRecord down) {
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batchUploadDelegate.onSuccess(up, response, down);
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next();
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}
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@Override
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public void onInvalidUpload(ClientReadingListRecord up,
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ReadingListResponse response) {
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batchUploadDelegate.onInvalidUpload(up, response);
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next();
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}
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@Override
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public void onFailure(ClientReadingListRecord up, MozResponse response) {
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batchUploadDelegate.onFailure(up, response);
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next();
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}
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@Override
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public void onFailure(ClientReadingListRecord up, Exception ex) {
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batchUploadDelegate.onFailure(up, ex);
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next();
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}
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@Override
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public void onConflict(ClientReadingListRecord up,
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ReadingListResponse response) {
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batchUploadDelegate.onConflict(up, response);
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next();
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}
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@Override
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public void onBadRequest(ClientReadingListRecord up, MozResponse response) {
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batchUploadDelegate.onBadRequest(up, response);
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next();
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}
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@Override
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public void onBatchDone() {
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// This should never occur, but if it does, pass through.
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batchUploadDelegate.onBatchDone();
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}
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}
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private class PostBatchingUploadDelegate extends BatchingUploadDelegate {
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PostBatchingUploadDelegate(Queue<ClientReadingListRecord> queue,
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ReadingListRecordUploadDelegate batchUploadDelegate,
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Executor executor) {
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super(queue, batchUploadDelegate, executor);
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}
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@Override
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void again(ClientReadingListRecord record) {
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add(record, PostBatchingUploadDelegate.this);
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}
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}
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private class PatchBatchingUploadDelegate extends BatchingUploadDelegate {
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PatchBatchingUploadDelegate(Queue<ClientReadingListRecord> queue,
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ReadingListRecordUploadDelegate batchUploadDelegate,
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Executor executor) {
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super(queue, batchUploadDelegate, executor);
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}
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@Override
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void again(ClientReadingListRecord record) {
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patch(record, PatchBatchingUploadDelegate.this);
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}
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}
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private class DeleteBatchingDelegate implements ReadingListDeleteDelegate {
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private final Queue<String> queue;
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private final ReadingListDeleteDelegate batchDeleteDelegate;
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private final Executor executor;
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DeleteBatchingDelegate(Queue<String> guids,
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ReadingListDeleteDelegate batchDeleteDelegate,
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Executor executor) {
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this.queue = guids;
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this.batchDeleteDelegate = batchDeleteDelegate;
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this.executor = executor;
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}
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void next() {
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final String guid = queue.poll();
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executor.execute(new Runnable() {
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@Override
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public void run() {
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if (guid == null) {
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batchDeleteDelegate.onBatchDone();
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return;
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}
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again(guid);
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}
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});
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}
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void again(String guid) {
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delete(guid, DeleteBatchingDelegate.this, -1L);
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}
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@Override
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public void onSuccess(ReadingListRecordResponse response,
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ReadingListRecord record) {
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batchDeleteDelegate.onSuccess(response, record);
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next();
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}
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@Override
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public void onPreconditionFailed(String guid, MozResponse response) {
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batchDeleteDelegate.onPreconditionFailed(guid, response);
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next();
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}
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@Override
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public void onRecordMissingOrDeleted(String guid, MozResponse response) {
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batchDeleteDelegate.onRecordMissingOrDeleted(guid, response);
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next();
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}
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@Override
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public void onFailure(Exception e) {
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batchDeleteDelegate.onFailure(e);
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next();
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}
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@Override
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public void onFailure(MozResponse response) {
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batchDeleteDelegate.onFailure(response);
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next();
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}
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@Override
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public void onBatchDone() {
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// This should never occur, but if it does, pass through.
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batchDeleteDelegate.onBatchDone();
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}
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}
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// Deliberately declare `delegate` non-final so we can't capture it below. We prefer
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// to use `recordDelegate` explicitly.
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public void getOne(final String guid, ReadingListRecordDelegate delegate, final long ifModifiedSince) {
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final BaseResource r = getRelativeArticleResource(guid);
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r.delegate = new SingleRecordResourceDelegate(r, auth, delegate, ReadingListRecordResponse.FACTORY, ifModifiedSince, guid);
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if (ReadingListConstants.DEBUG) {
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Logger.info(LOG_TAG, "Getting record " + guid);
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}
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r.get();
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}
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// Deliberately declare `delegate` non-final so we can't capture it below. We prefer
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// to use `recordDelegate` explicitly.
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public void getAll(final FetchSpec spec, ReadingListRecordDelegate delegate, final long ifModifiedSince) throws URISyntaxException {
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final BaseResource r = new BaseResource(spec.getURI(this.articlesURI));
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r.delegate = new MultipleRecordResourceDelegate(r, auth, delegate, ReadingListStorageResponse.FACTORY, ifModifiedSince);
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if (ReadingListConstants.DEBUG) {
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Logger.info(LOG_TAG, "Getting all records from " + r.getURIString());
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}
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r.get();
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}
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/**
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* Mutates the provided queue.
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*/
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public void patch(final Queue<ClientReadingListRecord> queue, final Executor executor, final ReadingListRecordUploadDelegate batchUploadDelegate) {
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if (queue.isEmpty()) {
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batchUploadDelegate.onBatchDone();
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return;
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}
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final ReadingListRecordUploadDelegate uploadDelegate = new PatchBatchingUploadDelegate(queue, batchUploadDelegate, executor);
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patch(queue.poll(), uploadDelegate);
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}
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public void patch(final ClientReadingListRecord up, final ReadingListRecordUploadDelegate uploadDelegate) {
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final String guid = up.getGUID();
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if (guid == null) {
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uploadDelegate.onFailure(up, new IllegalArgumentException("Supplied record must have a GUID."));
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return;
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}
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final BaseResource r = getRelativeArticleResource(guid);
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r.delegate = new DelegatingUploadResourceDelegate(r, auth, ReadingListRecordResponse.FACTORY, up,
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uploadDelegate);
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final ExtendedJSONObject body = up.toJSON();
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if (ReadingListConstants.DEBUG) {
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Logger.info(LOG_TAG, "Patching record " + guid + ": " + body.toJSONString());
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}
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r.patch(body);
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}
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/**
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* Mutates the provided queue.
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*/
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public void add(final Queue<ClientReadingListRecord> queue, final Executor executor, final ReadingListRecordUploadDelegate batchUploadDelegate) {
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if (queue.isEmpty()) {
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batchUploadDelegate.onBatchDone();
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return;
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}
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final ReadingListRecordUploadDelegate uploadDelegate = new PostBatchingUploadDelegate(queue, batchUploadDelegate, executor);
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add(queue.poll(), uploadDelegate);
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}
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public void add(final ClientReadingListRecord up, final ReadingListRecordUploadDelegate uploadDelegate) {
|
|
final BaseResource r = new BaseResource(this.articlesURI);
|
|
r.delegate = new DelegatingUploadResourceDelegate(r, auth, ReadingListRecordResponse.FACTORY, up,
|
|
uploadDelegate);
|
|
|
|
final ExtendedJSONObject body = up.toJSON();
|
|
if (ReadingListConstants.DEBUG) {
|
|
Logger.info(LOG_TAG, "Uploading new record: " + body.toJSONString());
|
|
}
|
|
r.post(body);
|
|
}
|
|
|
|
public void delete(final Queue<String> guids, final Executor executor, final ReadingListDeleteDelegate batchDeleteDelegate) {
|
|
if (guids.isEmpty()) {
|
|
batchDeleteDelegate.onBatchDone();
|
|
return;
|
|
}
|
|
|
|
final ReadingListDeleteDelegate deleteDelegate = new DeleteBatchingDelegate(guids, batchDeleteDelegate, executor);
|
|
|
|
delete(guids.poll(), deleteDelegate, -1L);
|
|
}
|
|
|
|
public void delete(final String guid, final ReadingListDeleteDelegate delegate, final long ifUnmodifiedSince) {
|
|
final BaseResource r = getRelativeArticleResource(guid);
|
|
|
|
// If If-Unmodified-Since is provided, and the record has been modified,
|
|
// we'll receive a 412 Precondition Failed.
|
|
// If the record is missing or already deleted, a 404 will be returned.
|
|
// Otherwise, the response will be the deleted record.
|
|
r.delegate = new ReadingListResourceDelegate<ReadingListRecordResponse>(r, auth, ReadingListRecordResponse.FACTORY) {
|
|
@Override
|
|
public void addHeaders(HttpRequestBase request, DefaultHttpClient client) {
|
|
if (ifUnmodifiedSince != -1) {
|
|
request.addHeader("If-Unmodified-Since", "" + ifUnmodifiedSince);
|
|
}
|
|
super.addHeaders(request, client);
|
|
}
|
|
|
|
@Override
|
|
void onFailure(MozResponse response) {
|
|
switch (response.getStatusCode()) {
|
|
case 412:
|
|
delegate.onPreconditionFailed(guid, response);
|
|
return;
|
|
}
|
|
delegate.onFailure(response);
|
|
}
|
|
|
|
@Override
|
|
void onSuccess(ReadingListRecordResponse response) {
|
|
final ReadingListRecord record;
|
|
try {
|
|
record = response.getRecord();
|
|
} catch (Exception e) {
|
|
delegate.onFailure(e);
|
|
return;
|
|
}
|
|
|
|
delegate.onSuccess(response, record);
|
|
}
|
|
|
|
@Override
|
|
void onFailure(Exception ex) {
|
|
delegate.onFailure(ex);
|
|
}
|
|
|
|
@Override
|
|
void onNonSuccess(ReadingListRecordResponse response) {
|
|
if (response.getStatusCode() == 404) {
|
|
// Already deleted!
|
|
delegate.onRecordMissingOrDeleted(guid, response);
|
|
}
|
|
}
|
|
};
|
|
|
|
if (ReadingListConstants.DEBUG) {
|
|
Logger.debug(LOG_TAG, "Deleting " + r.getURIString());
|
|
}
|
|
r.delete();
|
|
}
|
|
|
|
// TODO: modified times etc.
|
|
public void wipe(final ReadingListWipeDelegate delegate) {
|
|
Logger.info(LOG_TAG, "Wiping server.");
|
|
final BaseResource r = new BaseResource(this.articlesURI);
|
|
|
|
r.delegate = new ReadingListResourceDelegate<ReadingListStorageResponse>(r, auth, ReadingListStorageResponse.FACTORY) {
|
|
|
|
@Override
|
|
void onSuccess(ReadingListStorageResponse response) {
|
|
Logger.info(LOG_TAG, "Wipe succeded.");
|
|
delegate.onSuccess(response);
|
|
}
|
|
|
|
@Override
|
|
void onNonSuccess(ReadingListStorageResponse response) {
|
|
Logger.warn(LOG_TAG, "Wipe failed: " + response.getStatusCode());
|
|
onFailure(response);
|
|
}
|
|
|
|
@Override
|
|
void onFailure(MozResponse response) {
|
|
Logger.warn(LOG_TAG, "Wipe failed: " + response.getStatusCode());
|
|
delegate.onFailure(response);
|
|
}
|
|
|
|
@Override
|
|
void onFailure(Exception ex) {
|
|
Logger.warn(LOG_TAG, "Wipe failed.", ex);
|
|
delegate.onFailure(ex);
|
|
}
|
|
};
|
|
|
|
r.delete();
|
|
}
|
|
}
|