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bug3529 Moved UserSettingsStorageManager to gwt.ui. Replaced userService
mockup with real UserService access
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Vladislav Chumak committed
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commit
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6 files changed
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-318
@@ -1,318 +0,0 @@
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package com.sap.sse.gwt.client.shared.perspective;
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import com.google.gwt.storage.client.Storage;
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import com.google.gwt.user.client.rpc.AsyncCallback;
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import com.sap.sse.common.settings.Settings;
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import com.sap.sse.common.settings.generic.AbstractGenericSerializableSettings;
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import com.sap.sse.common.settings.generic.GenericSerializableSettings;
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import com.sap.sse.gwt.settings.SettingsToJsonSerializerGWT;
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import com.sap.sse.gwt.settings.SettingsToUrlSerializer;
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/**
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*
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* @author Vlad
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*
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* @param <R>
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* @param <S>
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*/
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public class UserSettingsStorageManager<PS extends Settings> implements SettingsStorageManager<PS> {
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private final String storageGlobalKey;
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private final String storageContextSpecificKey;
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private Throwable lastError = null;
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//TODO replace userService with real implementation
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private WithAuthenticationManager clientFactory = mockWithAuthenticationManager();
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//TODO replace userService with real implementation
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private UserService userService = mockUserService();
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private final SettingsToJsonSerializerGWT jsonSerializer = new SettingsToJsonSerializerGWT();
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private final SettingsToUrlSerializer urlSerializer = new SettingsToUrlSerializer();
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public UserSettingsStorageManager(String globalDefinitionId, String... contextDefinitionParameters) {
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this.storageGlobalKey = globalDefinitionId;
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this.storageContextSpecificKey = this.storageGlobalKey + "#" + buildContextDefinitionId(contextDefinitionParameters);
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}
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public void storeGlobalSettings(PerspectiveCompositeSettings<PS> globalSettings) {
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String serializedSettings = jsonSerializer.serializeToString(globalSettings);
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if(clientFactory.getAuthenticationManager().getAuthenticationContext().isLoggedIn()) {
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storeGlobalSettingsOnServer(serializedSettings);
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}
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storeGlobalSettingsOnLocalStorage(serializedSettings);
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}
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public void storeContextSpecificSettings(PerspectiveCompositeSettings<PS> contextSpecificSettings) {
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String serializedSettings = jsonSerializer.serializeToString(contextSpecificSettings);
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if(clientFactory.getAuthenticationManager().getAuthenticationContext().isLoggedIn()) {
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storeContextSpecificSettingsOnServer(serializedSettings);
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}
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storeContextSpecificSettingsOnLocalStorage(serializedSettings);
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}
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private void storeContextSpecificSettingsOnLocalStorage(String serializedContextSpecificSettings) {
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Storage localStorage = Storage.getLocalStorageIfSupported();
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if (localStorage != null) {
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localStorage.removeItem(storageContextSpecificKey);
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localStorage.setItem(storageContextSpecificKey, serializedContextSpecificSettings);
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}
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}
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private void storeContextSpecificSettingsOnServer(String serializedContextSpecificSettings) {
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userService.setPreference(storageContextSpecificKey, serializedContextSpecificSettings);
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}
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private void storeGlobalSettingsOnLocalStorage(String serializedGlobalSettings) {
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Storage localStorage = Storage.getLocalStorageIfSupported();
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if (localStorage != null) {
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localStorage.removeItem(storageGlobalKey);
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localStorage.setItem(storageGlobalKey, serializedGlobalSettings);
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}
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}
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private void storeGlobalSettingsOnServer(String serializedGlobalSettings) {
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userService.setPreference(storageGlobalKey, serializedGlobalSettings);
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}
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public void retrieveDefaultSettings(PerspectiveCompositeSettings<PS> defaultSettings, final DefaultSettingsLoadedCallback<PS> asyncCallback) {
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defaultSettings = retrieveGlobalSettingsFromLocalStorage(defaultSettings);
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defaultSettings = retrieveContextSpecificSettingsFromLocalStorage(defaultSettings);
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defaultSettings = retrieveDefaultSettingsFromUrl(defaultSettings);
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final SettingsJsonRetrievement settingsJsonRetrievement = new SettingsJsonRetrievement(defaultSettings);
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if(clientFactory.getAuthenticationManager().getAuthenticationContext().isLoggedIn()) {
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AsyncCallback<String> globalSettingsAsyncCallback = new AsyncCallback<String>() {
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@Override
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public void onFailure(Throwable caught) {
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lastError = caught;
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settingsJsonRetrievement.receiveError(caught);
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onSuccess(null);
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}
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@Override
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public void onSuccess(String globalSettingsJson) {
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settingsJsonRetrievement.receiveGlobalSettingsJson(globalSettingsJson);
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if(settingsJsonRetrievement.hasAllCallbacksReceived()) {
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continueRetrieveDefaultSettings(settingsJsonRetrievement, asyncCallback);
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}
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}
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};
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retrieveGlobalSettingsJsonFromServer(globalSettingsAsyncCallback);
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AsyncCallback<String> contextSpecificSettingsAsyncCallback = new AsyncCallback<String>() {
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@Override
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public void onFailure(Throwable caught) {
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lastError = caught;
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settingsJsonRetrievement.receiveError(caught);
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onSuccess(null);
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}
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@Override
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public void onSuccess(String contextSpecificSettingsJson) {
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settingsJsonRetrievement.receiveContextSpecificSettingsJson(contextSpecificSettingsJson);
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if(settingsJsonRetrievement.hasAllCallbacksReceived()) {
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continueRetrieveDefaultSettings(settingsJsonRetrievement, asyncCallback);
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}
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}
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};
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retrieveContextSpecificSettingsJsonFromServer(contextSpecificSettingsAsyncCallback);
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} else {
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settingsJsonRetrievement.receiveContextSpecificSettingsJson(null);
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settingsJsonRetrievement.receiveGlobalSettingsJson(null);
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continueRetrieveDefaultSettings(settingsJsonRetrievement, asyncCallback);
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}
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}
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private void continueRetrieveDefaultSettings(
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UserSettingsStorageManager<PS>.SettingsJsonRetrievement settingsJsonRetrievement, DefaultSettingsLoadedCallback<PS> callback) {
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PerspectiveCompositeSettings<PS> defaultSettings = settingsJsonRetrievement.getDefaultSettings();
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if(settingsJsonRetrievement.getGlobalSettingsJson() != null) {
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defaultSettings = jsonSerializer.deserialize(defaultSettings, settingsJsonRetrievement.getGlobalSettingsJson());
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}
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if(settingsJsonRetrievement.getContextSpecificSettingsJson() != null) {
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defaultSettings = jsonSerializer.deserialize(defaultSettings, settingsJsonRetrievement.getContextSpecificSettingsJson());
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}
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defaultSettings = urlSerializer.deserializeFromCurrentLocation(defaultSettings);
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if(settingsJsonRetrievement.isErrorOccurred()) {
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callback.onError(settingsJsonRetrievement.getCaught(), defaultSettings);
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} else {
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callback.onSuccess(defaultSettings);
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}
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}
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private PerspectiveCompositeSettings<PS> retrieveGlobalSettingsFromLocalStorage(PerspectiveCompositeSettings<PS> defaultSettings) {
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Storage localStorage = Storage.getLocalStorageIfSupported();
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if (localStorage != null) {
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String serializedSettings = localStorage.getItem(storageGlobalKey);
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defaultSettings = jsonSerializer.deserialize(defaultSettings, serializedSettings);
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}
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return defaultSettings;
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}
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private PerspectiveCompositeSettings<PS> retrieveContextSpecificSettingsFromLocalStorage(PerspectiveCompositeSettings<PS> defaultSettings) {
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Storage localStorage = Storage.getLocalStorageIfSupported();
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if (localStorage != null) {
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String serializedSettings = localStorage.getItem(storageContextSpecificKey);
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defaultSettings = jsonSerializer.deserialize(defaultSettings, serializedSettings);
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}
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return defaultSettings;
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}
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private void retrieveGlobalSettingsJsonFromServer(AsyncCallback<String> asyncCallback) {
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userService.getPreference(storageGlobalKey, asyncCallback);
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}
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private void retrieveContextSpecificSettingsJsonFromServer(AsyncCallback<String> asyncCallback) {
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userService.getPreference(storageContextSpecificKey, asyncCallback);
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}
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private PerspectiveCompositeSettings<PS> retrieveDefaultSettingsFromUrl(PerspectiveCompositeSettings<PS> defaultSettings) {
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return urlSerializer.deserializeFromCurrentLocation(defaultSettings);
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}
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private class SettingsJsonRetrievement extends CallbacksJoinerHelper<String, String> {
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private PerspectiveCompositeSettings<PS> defaultSettings;
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public SettingsJsonRetrievement(PerspectiveCompositeSettings<PS> defaultSettings) {
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this.defaultSettings = defaultSettings;
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}
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public String getGlobalSettingsJson() {
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return getFirstCallbackResult();
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}
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public void receiveGlobalSettingsJson(String globalSettingsJson) {
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receiveFirstCallbackResult(globalSettingsJson);
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}
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public String getContextSpecificSettingsJson() {
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return getSecondCallbackResult();
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}
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public void receiveContextSpecificSettingsJson(String contextSpecificSettingsJson) {
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receiveSecondCallbackResult(contextSpecificSettingsJson);
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}
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public PerspectiveCompositeSettings<PS> getDefaultSettings() {
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return defaultSettings;
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}
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}
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public Throwable getLastError() {
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return lastError;
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}
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private static String buildContextDefinitionId(String[] contextDefinitionParameters) {
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StringBuilder str = new StringBuilder("");
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boolean first = true;
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for(String contextDefinitionParameter : contextDefinitionParameters) {
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if(first) {
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first = false;
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} else {
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str.append(",");
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}
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if(contextDefinitionParameter != null) {
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str.append(contextDefinitionParameter);
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}
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}
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return str.toString();
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}
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//TODO replace mockups with real implementation
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private interface UserService {
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/**
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* Loads the {@link #getCurrentUser() current user}'s preference with the given {@link String key} from server.
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*
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* @param key
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* key of the preference to load
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* @param callback
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* {@link AsyncCallback} for GWT RPC call
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*
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* @see GenericSerializableSettings
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* @see AbstractGenericSerializableSettings
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*/
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public void getPreference(String key,
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final AsyncCallback<String> callback);
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/**
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* Sets the {@link #getCurrentUser() current user}'s preference with the given {@link String key} on server.
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* Because preferences are persisted as JSON, the provided {@link GenericSerializableSettings} instance
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* will be serialized before it is sent to the server.
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*
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* @param key
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* key of the preference to set
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* @param instance
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* {@link GenericSerializableSettings} instance containing the preference value
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*
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* @see GenericSerializableSettings
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* @see AbstractGenericSerializableSettings
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*/
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public void setPreference(String key, String serializedSettings);
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}
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private interface WithAuthenticationManager {
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/**
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* @return the {@link AuthenticationManager}
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*/
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AuthenticationManager getAuthenticationManager();
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}
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private interface AuthenticationManager {
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/**
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* Provide the {@link AuthenticationContext} for the current user
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*
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* @return an {@link AuthenticationContext} instance
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*/
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AuthenticationContext getAuthenticationContext();
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}
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private interface AuthenticationContext {
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/**
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* Determines if there is a logged in user.
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*
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* @return <code>true</code> if a user is logged in, <code>false</code> otherwise
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*/
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boolean isLoggedIn();
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}
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private static WithAuthenticationManager mockWithAuthenticationManager() {
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return new WithAuthenticationManager() {
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@Override
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public AuthenticationManager getAuthenticationManager() {
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return new AuthenticationManager() {
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@Override
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public AuthenticationContext getAuthenticationContext() {
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return new AuthenticationContext() {
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@Override
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public boolean isLoggedIn() {
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return false;
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}
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};
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}
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};
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}
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};
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}
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private static UserService mockUserService() {
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return new UserService() {
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@Override
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public void setPreference(String key, String serializedSettings) {
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// TODO Auto-generated method stub
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}
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@Override
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public void getPreference(String key,
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final AsyncCallback<String> callback) {
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// TODO Auto-generated method stub
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}
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};
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}
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}
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