forked from upstream-mirrors/OpenTracks
Making a 1.0.20 bugfix branch
This commit is contained in:
Rodrigo Damazio
@@ -0,0 +1,190 @@
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/*
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* Copyright 2010 Google Inc.
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*
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* Licensed under the Apache License, Version 2.0 (the "License"); you may not
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* use this file except in compliance with the License. You may obtain a copy of
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* the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations under
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* the License.
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*/
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package com.google.android.apps.mymaps;
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import com.google.android.apps.mytracks.MyTracksConstants;
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import com.google.android.apps.mytracks.io.AuthManager;
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import com.google.android.apps.mytracks.io.gdata.GDataClientFactory;
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import com.google.android.common.gdata.AndroidXmlParserFactory;
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import com.google.wireless.gdata.client.GDataClient;
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import com.google.wireless.gdata.client.HttpException;
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import com.google.wireless.gdata.maps.MapsClient;
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import com.google.wireless.gdata.maps.xml.XmlMapsGDataParserFactory;
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import com.google.wireless.gdata.parser.xml.SimplePullParser.ParseException;
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import com.google.wireless.gdata2.ConflictDetectedException;
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import com.google.wireless.gdata2.client.AuthenticationException;
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import android.content.Context;
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import android.util.Log;
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import java.io.IOException;
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/**
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* MyMapsGDataWrapper provides a wrapper around GData operations that maintains
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* the GData client, and provides a method to run gdata queries with proper
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* error handling. After a query is run, the wrapper can be queried about the
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* error that occurred.
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*/
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public class MyMapsGDataWrapper {
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/**
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* A QueryFunction is passed in when executing a query. The query function
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* of the class is called with the GData client as a parameter. The
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* function should execute whatever operations it desires on the client
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* without concern for whether the client will throw an error.
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*/
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public interface QueryFunction {
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public abstract void query(MapsClient client)
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throws AuthenticationException, IOException, ParseException,
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ConflictDetectedException, Exception;
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}
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// The types of error that may be encountered
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/** No error occurred. */
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public static final int ERROR_NO_ERROR = 0;
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/** There was an authentication error, the auth token may be invalid. */
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public static final int ERROR_AUTH = 1;
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/** There was an internal error on the server side. */
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public static final int ERROR_INTERNAL = 2;
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/** There was an error connecting to the server. */
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public static final int ERROR_CONNECTION = 3;
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/** The item queried did not exit. */
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public static final int ERROR_NOT_FOUND = 4;
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/** There was an error parsing or serializing locally. */
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public static final int ERROR_LOCAL = 5;
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/** There was a conflict, update the entry and try again. */
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public static final int ERROR_CONFLICT = 6;
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/**
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* A query was run after cleaning up the wrapper, so the client was invalid.
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*/
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public static final int ERROR_CLEANED_UP = 7;
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/** An unknown error occurred. */
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public static final int ERROR_UNKNOWN = 100;
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private final GDataClient androidGdataClient;
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private final MapsClient client;
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private String errorMessage;
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private int errorType;
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private AuthManager auth;
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private boolean retryOnAuthFailure;
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private int retriesPending;
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private boolean cleanupCalled;
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public MyMapsGDataWrapper(Context context) {
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androidGdataClient = GDataClientFactory.getGDataClient(context);
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client =
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new MapsClient(androidGdataClient, new XmlMapsGDataParserFactory(
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new AndroidXmlParserFactory()));
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errorType = ERROR_NO_ERROR;
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errorMessage = null;
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auth = null;
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retryOnAuthFailure = false;
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retriesPending = 0;
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cleanupCalled = false;
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}
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public boolean runQuery(final QueryFunction query) {
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if (client == null) {
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errorType = ERROR_CLEANED_UP;
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errorMessage = "GData Wrapper has already been cleaned up!";
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return false;
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}
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try {
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query.query(client);
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errorType = ERROR_NO_ERROR;
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errorMessage = null;
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return true;
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} catch (AuthenticationException e) {
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Log.e(MyTracksConstants.TAG, "Exception", e);
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errorType = ERROR_AUTH;
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errorMessage = e.getMessage();
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} catch (HttpException e) {
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Log.e(MyTracksConstants.TAG, "HttpException", e);
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errorMessage = e.getMessage();
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if (errorMessage != null && errorMessage.contains("401")) {
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errorType = ERROR_AUTH;
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} else {
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errorType = ERROR_CONNECTION;
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}
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} catch (IOException e) {
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Log.e(MyTracksConstants.TAG, "Exception", e);
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errorMessage = e.getMessage();
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if (errorMessage != null && errorMessage.contains("503")) {
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errorType = ERROR_INTERNAL;
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} else {
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errorType = ERROR_CONNECTION;
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}
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} catch (ParseException e) {
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Log.e(MyTracksConstants.TAG, "Exception", e);
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errorType = ERROR_LOCAL;
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errorMessage = e.getMessage();
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} catch (ConflictDetectedException e) {
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Log.e(MyTracksConstants.TAG, "Exception", e);
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errorType = ERROR_CONFLICT;
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errorMessage = e.getMessage();
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} catch (Exception e) {
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Log.e(MyTracksConstants.TAG, "Exception", e);
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errorType = ERROR_UNKNOWN;
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errorMessage = e.getMessage();
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e.printStackTrace();
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}
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Log.d(MyTracksConstants.TAG, "GData error encountered: " + errorMessage);
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if (errorType == ERROR_AUTH && auth != null) {
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Runnable whenFinished = null;
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if (retryOnAuthFailure) {
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retriesPending++;
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whenFinished = new Runnable() {
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public void run() {
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retriesPending--;
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retryOnAuthFailure = false;
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runQuery(query);
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if (cleanupCalled && retriesPending == 0) {
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cleanUp();
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}
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}
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};
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}
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auth.invalidateAndRefresh(whenFinished);
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}
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return false;
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}
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public int getErrorType() {
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return errorType;
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}
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public String getErrorMessage() {
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return errorMessage;
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}
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// cleanUp must be called when done using this wrapper to close the client.
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// Note that the cleanup will be delayed if auth failure retries were
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// requested and there is a pending retry.
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public void cleanUp() {
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if (retriesPending == 0 && !cleanupCalled) {
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androidGdataClient.close();
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}
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cleanupCalled = true;
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}
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public void setAuthManager(AuthManager newAuth) {
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this.auth = newAuth;
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}
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public void setRetryOnAuthFailure(boolean retry) {
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retryOnAuthFailure = retry;
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}
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}
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