org.obeonetwork.dsl.dart.usage.internal.preferences.UsagePreferences.java Source code

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Here is the source code for org.obeonetwork.dsl.dart.usage.internal.preferences.UsagePreferences.java

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/*******************************************************************************
 * Copyright (c) 2014 Obeo.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 * 
 * Contributors:
 *     Obeo - initial API and implementation
 *******************************************************************************/
package org.obeonetwork.dsl.dart.usage.internal.preferences;

import com.google.common.base.Joiner;
import com.google.common.base.Splitter;

import java.util.HashMap;
import java.util.Map;

import org.eclipse.jface.dialogs.IDialogConstants;
import org.eclipse.jface.preference.IPreferenceStore;
import org.obeonetwork.dsl.dart.design.internal.DartDesignerPlugin;

/**
 * Preferences for usage report through google analytics.
 * 
 * @author Melanie Bats <a href="mailto:melanie.bats@obeo.fr">melanie.bats@obeo.fr</a>
 */
public class UsagePreferences {
    /**
     * Key for user answer preference in preference store.
     */
    public static final String USAGE_USER_ANSWER_ID = "usage_user_answer_preference"; //$NON-NLS-1$

    /**
     * Key for usage report enabled preference in preference store.
     */
    public static final String USAGE_ENABLED_ID = "usage_enabled_preference"; //$NON-NLS-1$

    /**
     * Key for diagrams usage preference in preference store.
     */
    public static final String USAGE_DIAGRAMS_ID = "usage_diagrams_preference"; //$NON-NLS-1$

    /**
     * The preference store.
     */
    private IPreferenceStore preferenceStore = DartDesignerPlugin.getDefault().getPreferenceStore();

    /**
     * Check if the user has answered to the question.
     * 
     * @return True if answered the question (by yes or no) otherwise false
     */
    public boolean hasAnswered() {
        if (preferenceStore.getInt(USAGE_USER_ANSWER_ID) == IDialogConstants.YES_ID
                || preferenceStore.getInt(USAGE_USER_ANSWER_ID) == IDialogConstants.NO_ID) {
            return true;
        }
        return false;
    }

    /**
     * Check if the usage report is enabled.
     * 
     * @return True if enabled otherwise false
     */
    public boolean isEnabled() {
        if (preferenceStore.getBoolean(USAGE_ENABLED_ID)) {
            return true;
        }
        return false;
    }

    /**
     * Store if the user as answer to the question.
     * 
     * @param answerId
     *            The answer could be {@link IDialogConstants#YES_ID} if the user clicked on yes,
     *            {@link IDialogConstants#NO_ID} if he clicked on no or {@link IDialogConstants#OK_ID} if he
     *            does not answered
     */
    public void storeUserAnswer(int answerId) {
        preferenceStore.setValue(USAGE_USER_ANSWER_ID, answerId);
        if (answerId == IDialogConstants.YES_ID) {
            preferenceStore.setValue(USAGE_ENABLED_ID, true);
        }
        if (answerId == IDialogConstants.NO_ID) {
            preferenceStore.setValue(USAGE_ENABLED_ID, false);
        }
    }

    /**
     * Store the diagrams usage. It is stored as a string with format : Diagram Type Name1=42;Diagram Type
     * Name2=1;Diagram Type Name3=24.
     * 
     * @param diagramName
     *            Diagram Name
     */
    public void storeDiagramsUsage(String diagramName) {
        // Get existing preference
        String storedDiagrams = preferenceStore.getString(USAGE_DIAGRAMS_ID);

        Map<String, String> map = new HashMap<String, String>();

        char keySeparator = ';';
        String valueSeparator = "="; //$NON-NLS-1$

        if (storedDiagrams.length() > 0) {
            // Split string to map
            Map<String, String> unmodifiableMap = Splitter.on(keySeparator).trimResults()
                    .withKeyValueSeparator(valueSeparator).split(storedDiagrams);
            map.putAll(unmodifiableMap);
        }

        // Update map value
        int value = 0;
        if (map.containsKey(diagramName)) {
            String storedValue = map.get(diagramName);
            value = Integer.parseInt(storedValue);
        }
        value++;
        map.put(diagramName, String.valueOf(value));

        // Join string to map
        storedDiagrams = Joiner.on(keySeparator).withKeyValueSeparator(valueSeparator).join(map);

        // Set new preference
        preferenceStore.setValue(USAGE_DIAGRAMS_ID, storedDiagrams);
    }

    /**
     * Get diagrams usage.
     * 
     * @return String representing the diagrams usage, see {@link UsagePreferences#storeDiagramsUsage(String)}
     *         to get the string format
     */
    public String getDiagramsUsage() {
        return preferenceStore.getString(USAGE_DIAGRAMS_ID);
    }

}