From 373d7d9c16616dccaa0c65ea831ab79e7238c49a Mon Sep 17 00:00:00 2001
From: Sergey Solovyev <se.solovyev@gmail.com>
Date: Sun, 20 Jan 2013 14:51:36 +0400
Subject: [PATCH] Error in case of loading user data (functions, vars etc)

---
 android-app-core/res/values/text_strings.xml  |   1 +
 .../calculator/ParcelableDialogData.java      | 105 +++++++++++++++
 android-app/AndroidManifest.xml               |   2 +
 android-app/project.properties                |  28 ++--
 .../res/layout/cpp_dialog_fragment.xml        |  38 ++++++
 .../calculator/AndroidCalculatorLogger.java   |   5 +
 .../CalculatorActivityLauncher.java           |  12 ++
 .../calculator/CalculatorApplication.java     |  11 +-
 .../calculator/CalculatorDialogActivity.java  | 126 ++++++++++++++++++
 .../calculator/CalculatorFragmentType.java    |   7 +-
 .../function/FunctionEditorSaver.java         |  41 +-----
 .../android/calculator/model/Messages.java    |  34 -----
 .../AbstractCalculatorMathRegistry.java       |  32 +++--
 .../calculator/CalculatorEventType.java       |   3 +
 .../CalculatorFunctionsMathRegistry.java      |  17 +--
 .../android/calculator/CalculatorLogger.java  |   2 +
 .../calculator/CalculatorMessages.java        |  13 ++
 .../android/calculator/DialogData.java        |  22 +++
 .../android/calculator/MessageDialogData.java |  48 +++++++
 .../android/calculator/StringDialogData.java  |  51 +++++++
 .../calculator/SystemOutCalculatorLogger.java |   5 +
 .../function/FunctionBuilderAdapter.java      |  52 ++++++++
 .../android/calculator/model/AFunction.java   |  15 ++-
 .../android/calculator/model/Var.java         |   9 +-
 .../android/calculator/messages.properties    |   2 +
 .../android/calculator/messages_ru.properties |   3 +
 26 files changed, 559 insertions(+), 125 deletions(-)
 create mode 100644 android-app-core/src/main/java/org/solovyev/android/calculator/ParcelableDialogData.java
 create mode 100644 android-app/res/layout/cpp_dialog_fragment.xml
 create mode 100644 android-app/src/main/java/org/solovyev/android/calculator/CalculatorDialogActivity.java
 delete mode 100644 android-app/src/main/java/org/solovyev/android/calculator/model/Messages.java
 create mode 100644 core/src/main/java/org/solovyev/android/calculator/DialogData.java
 create mode 100644 core/src/main/java/org/solovyev/android/calculator/MessageDialogData.java
 create mode 100644 core/src/main/java/org/solovyev/android/calculator/StringDialogData.java
 create mode 100644 core/src/main/java/org/solovyev/android/calculator/function/FunctionBuilderAdapter.java

diff --git a/android-app-core/res/values/text_strings.xml b/android-app-core/res/values/text_strings.xml
index 8ec6b0a2..2aebeade 100644
--- a/android-app-core/res/values/text_strings.xml
+++ b/android-app-core/res/values/text_strings.xml
@@ -320,6 +320,7 @@
     <string name="cpp_invalid_number">Invalid number!</string>
     <string name="cpp_plot_boundaries_should_differ">Graph boundaries should not be the same!</string>
     <string name="cpp_apply">Apply</string>
+    <string name="cpp_message">Message</string>
 
 
 </resources>
\ No newline at end of file
diff --git a/android-app-core/src/main/java/org/solovyev/android/calculator/ParcelableDialogData.java b/android-app-core/src/main/java/org/solovyev/android/calculator/ParcelableDialogData.java
new file mode 100644
index 00000000..598acb20
--- /dev/null
+++ b/android-app-core/src/main/java/org/solovyev/android/calculator/ParcelableDialogData.java
@@ -0,0 +1,105 @@
+package org.solovyev.android.calculator;
+
+import android.os.Parcel;
+import android.os.Parcelable;
+import org.jetbrains.annotations.NotNull;
+import org.jetbrains.annotations.Nullable;
+import org.solovyev.common.msg.MessageType;
+
+/**
+* User: serso
+* Date: 1/20/13
+* Time: 1:04 PM
+*/
+public final class ParcelableDialogData implements DialogData, Parcelable {
+
+    /*
+    **********************************************************************
+    *
+    *                           STATIC
+    *
+    **********************************************************************
+    */
+
+    public final static Creator<ParcelableDialogData> CREATOR = new Creator<ParcelableDialogData>() {
+        @Override
+        public ParcelableDialogData createFromParcel(@NotNull Parcel in) {
+            return fromParcel(in);
+        }
+
+        @Override
+        public ParcelableDialogData[] newArray(int size) {
+            return new ParcelableDialogData[size];
+        }
+    };
+
+    /*
+    **********************************************************************
+    *
+    *                           FIELDS
+    *
+    **********************************************************************
+    */
+
+    @NotNull
+    private DialogData nestedData;
+
+    /*
+    **********************************************************************
+    *
+    *                           CONSTRUCTORS
+    *
+    **********************************************************************
+    */
+
+    public ParcelableDialogData(@NotNull DialogData nestedData) {
+        this.nestedData = nestedData;
+    }
+
+    @NotNull
+    public static ParcelableDialogData wrap(@NotNull DialogData nestedData) {
+        if (nestedData instanceof ParcelableDialogData) {
+            return ((ParcelableDialogData) nestedData);
+        } else {
+            return new ParcelableDialogData(nestedData);
+        }
+    }
+
+    @NotNull
+    public static ParcelableDialogData fromParcel(@NotNull Parcel in) {
+        final String message = in.readString();
+        final MessageType messageType = MessageType.values()[in.readInt()];
+        final String title = in.readString();
+        return wrap(StringDialogData.newInstance(message, messageType, title));
+    }
+
+    @NotNull
+    @Override
+    public String getMessage() {
+        return nestedData.getMessage();
+    }
+
+    @NotNull
+    @Override
+    public MessageType getMessageType() {
+        return nestedData.getMessageType();
+    }
+
+    @Nullable
+    @Override
+    public String getTitle() {
+        return nestedData.getTitle();
+    }
+
+    @Override
+    public int describeContents() {
+        return 0;
+    }
+
+    @Override
+    public void writeToParcel(@NotNull Parcel out, int flags) {
+        out.writeString(this.getMessage());
+        out.writeInt(this.getMessageType().ordinal());
+        out.writeString(this.getTitle());
+    }
+}
diff --git a/android-app/AndroidManifest.xml b/android-app/AndroidManifest.xml
index a4870183..db630196 100644
--- a/android-app/AndroidManifest.xml
+++ b/android-app/AndroidManifest.xml
@@ -57,6 +57,8 @@
         <activity android:launchMode="singleTop" android:label="@string/cpp_plot_function_settings" android:name=".plot.CalculatorPlotFunctionSettingsActivity" android:theme="@style/cpp_gray_dialog_theme"/>
         <activity android:launchMode="singleTop" android:label="@string/cpp_plot_range" android:name=".plot.CalculatorPlotRangeActivity" android:theme="@style/cpp_gray_dialog_theme"/>
 
+        <activity android:launchMode="singleTop" android:name=".CalculatorDialogActivity" android:theme="@style/cpp_gray_dialog_theme"/>
+
         <!-- todo serso: strings-->
         <activity android:label="@string/c_plot_graph" android:name=".matrix.CalculatorMatrixActivity"/>
 
diff --git a/android-app/project.properties b/android-app/project.properties
index 1b8a55be..542cf64d 100644
--- a/android-app/project.properties
+++ b/android-app/project.properties
@@ -12,19 +12,19 @@ target=android-15
 android.library.reference.1=../android-app-core
 android.library.reference.2=../android-app-widget
 android.library.reference.3=../android-app-onscreen
-android.library.reference.4=../android-app-core/gen-external-apklibs/org.solovyev.android_android-common-all_1.0.6
-android.library.reference.5=../android-app-core/gen-external-apklibs/org.solovyev.android_android-common-ads_1.0.6
-android.library.reference.6=../android-app-core/gen-external-apklibs/org.solovyev.android_android-common-core_1.0.6
-android.library.reference.7=../android-app-core/gen-external-apklibs/org.solovyev.android_android-common-billing_1.0.6
-android.library.reference.8=../android-app-core/gen-external-apklibs/org.solovyev.android_android-common-db_1.0.6
-android.library.reference.9=../android-app-core/gen-external-apklibs/org.solovyev.android_android-common-http_1.0.6
-android.library.reference.10=../android-app-core/gen-external-apklibs/org.solovyev.android_android-common-list_1.0.6
-android.library.reference.11=../android-app-core/gen-external-apklibs/org.solovyev.android_android-common-view_1.0.6
-android.library.reference.12=../android-app-core/gen-external-apklibs/org.solovyev.android_android-common-preferences_1.0.6
-android.library.reference.13=../android-app-core/gen-external-apklibs/org.solovyev.android_android-common-menu_1.0.6
-android.library.reference.14=../android-app-core/gen-external-apklibs/org.solovyev.android_android-common-other_1.0.6
-android.library.reference.15=../android-app-core/gen-external-apklibs/org.solovyev.android_android-common-sherlock_1.0.6
-android.library.reference.16=../android-app-core/gen-external-apklibs/com.actionbarsherlock_actionbarsherlock_4.2.0
-android.library.reference.17=../android-app-core/gen-external-apklibs/org.solovyev.android_android-common-keyboard_1.0.6
+android.library.reference.4=gen-external-apklibs/org.solovyev.android_android-common-all_1.0.6
+android.library.reference.5=gen-external-apklibs/org.solovyev.android_android-common-ads_1.0.6
+android.library.reference.6=gen-external-apklibs/org.solovyev.android_android-common-core_1.0.6
+android.library.reference.7=gen-external-apklibs/org.solovyev.android_android-common-billing_1.0.6
+android.library.reference.8=gen-external-apklibs/org.solovyev.android_android-common-db_1.0.6
+android.library.reference.9=gen-external-apklibs/org.solovyev.android_android-common-http_1.0.6
+android.library.reference.10=gen-external-apklibs/org.solovyev.android_android-common-list_1.0.6
+android.library.reference.11=gen-external-apklibs/org.solovyev.android_android-common-view_1.0.6
+android.library.reference.12=gen-external-apklibs/org.solovyev.android_android-common-preferences_1.0.6
+android.library.reference.13=gen-external-apklibs/org.solovyev.android_android-common-menu_1.0.6
+android.library.reference.14=gen-external-apklibs/org.solovyev.android_android-common-other_1.0.6
+android.library.reference.15=gen-external-apklibs/org.solovyev.android_android-common-sherlock_1.0.6
+android.library.reference.16=gen-external-apklibs/com.actionbarsherlock_actionbarsherlock_4.2.0
+android.library.reference.17=gen-external-apklibs/org.solovyev.android_android-common-keyboard_1.0.6
 
 
diff --git a/android-app/res/layout/cpp_dialog_fragment.xml b/android-app/res/layout/cpp_dialog_fragment.xml
new file mode 100644
index 00000000..ae212b05
--- /dev/null
+++ b/android-app/res/layout/cpp_dialog_fragment.xml
@@ -0,0 +1,38 @@
+<?xml version="1.0" encoding="utf-8"?>
+
+<LinearLayout xmlns:a="http://schemas.android.com/apk/res/android"
+    a:id="@+id/main_fragment_layout"
+    style="?cpp_fragment_layout_style"
+    a:layout_width="match_parent"
+    a:layout_gravity="center_horizontal"
+    a:layout_height="match_parent"
+    a:orientation="vertical">
+
+    <TextView
+        a:id="@+id/cpp_dialog_message_textview"
+        a:layout_width="match_parent"
+        a:layout_height="wrap_content" />
+
+    <LinearLayout
+        a:layout_width="match_parent"
+        a:layout_height="wrap_content"
+        a:orientation="horizontal">
+
+        <Button
+            a:id="@+id/cpp_copy_button"
+            a:text="@string/c_copy"
+            a:layout_width="0dp"
+            a:layout_height="wrap_content"
+            a:layout_weight="1"
+            a:visibility="gone" />
+
+        <Button
+            a:id="@+id/cpp_ok_button"
+            a:text="@string/ok"
+            a:layout_width="0dp"
+            a:layout_height="wrap_content"
+            a:layout_weight="1" />
+
+    </LinearLayout>
+
+</LinearLayout>
\ No newline at end of file
diff --git a/android-app/src/main/java/org/solovyev/android/calculator/AndroidCalculatorLogger.java b/android-app/src/main/java/org/solovyev/android/calculator/AndroidCalculatorLogger.java
index 95832935..452f1887 100644
--- a/android-app/src/main/java/org/solovyev/android/calculator/AndroidCalculatorLogger.java
+++ b/android-app/src/main/java/org/solovyev/android/calculator/AndroidCalculatorLogger.java
@@ -33,4 +33,9 @@ public class AndroidCalculatorLogger implements CalculatorLogger {
     public void error(@Nullable String tag, @Nullable String message, @NotNull Throwable e) {
         Log.e(getTag(tag), message, e);
     }
+
+    @Override
+    public void error(@Nullable String tag, @Nullable String message) {
+        Log.e(getTag(tag), message);
+    }
 }
diff --git a/android-app/src/main/java/org/solovyev/android/calculator/CalculatorActivityLauncher.java b/android-app/src/main/java/org/solovyev/android/calculator/CalculatorActivityLauncher.java
index 9850959f..a6d793bf 100644
--- a/android-app/src/main/java/org/solovyev/android/calculator/CalculatorActivityLauncher.java
+++ b/android-app/src/main/java/org/solovyev/android/calculator/CalculatorActivityLauncher.java
@@ -244,6 +244,18 @@ public final class CalculatorActivityLauncher implements CalculatorEventListener
                     });
                 }
                 break;
+            case show_message_dialog:
+                final DialogData dialogData = (DialogData) data;
+                if (dialogData != null) {
+                    App.getInstance().getUiThreadExecutor().execute(new Runnable() {
+                        @Override
+                        public void run() {
+                            CalculatorDialogActivity.showDialog(context, dialogData);
+                        }
+                    });
+                }
+                break;
+
         }
     }
 
diff --git a/android-app/src/main/java/org/solovyev/android/calculator/CalculatorApplication.java b/android-app/src/main/java/org/solovyev/android/calculator/CalculatorApplication.java
index dfee08ca..8e2a66a9 100644
--- a/android-app/src/main/java/org/solovyev/android/calculator/CalculatorApplication.java
+++ b/android-app/src/main/java/org/solovyev/android/calculator/CalculatorApplication.java
@@ -124,6 +124,11 @@ public class CalculatorApplication extends android.app.Application implements Sh
 				new AndroidExternalListenersContainer(calculator),
                 new AndroidCalculatorPlotter(this, new CalculatorPlotterImpl(calculator)));
 
+        listeners.add(new CalculatorActivityLauncher());
+        for (CalculatorEventListener listener : listeners) {
+            calculator.addCalculatorEventListener(listener);
+        }
+
         Locator.getInstance().getCalculator().init();
 
         BillingDB.init(CalculatorApplication.this);
@@ -161,12 +166,6 @@ public class CalculatorApplication extends android.app.Application implements Sh
             }
         }).start();
 
-        listeners.add(new CalculatorActivityLauncher());
-
-        for (CalculatorEventListener listener : listeners) {
-            calculator.addCalculatorEventListener(listener);
-        }
-
         Locator.getInstance().getLogger().debug(TAG, "Application started!");
         Locator.getInstance().getNotifier().showDebugMessage(TAG, "Application started!");
     }
diff --git a/android-app/src/main/java/org/solovyev/android/calculator/CalculatorDialogActivity.java b/android-app/src/main/java/org/solovyev/android/calculator/CalculatorDialogActivity.java
new file mode 100644
index 00000000..e804399a
--- /dev/null
+++ b/android-app/src/main/java/org/solovyev/android/calculator/CalculatorDialogActivity.java
@@ -0,0 +1,126 @@
+package org.solovyev.android.calculator;
+
+import android.content.Context;
+import android.content.Intent;
+import android.os.Bundle;
+import android.os.Parcelable;
+import android.view.View;
+import android.widget.Button;
+import android.widget.TextView;
+import com.actionbarsherlock.app.SherlockFragmentActivity;
+import org.jetbrains.annotations.NotNull;
+import org.jetbrains.annotations.Nullable;
+import org.solovyev.android.AndroidUtils2;
+import org.solovyev.android.fragments.FragmentUtils;
+import org.solovyev.common.msg.MessageType;
+import org.solovyev.common.text.StringUtils;
+
+/**
+ * User: serso
+ * Date: 1/20/13
+ * Time: 12:50 PM
+ */
+public class CalculatorDialogActivity extends SherlockFragmentActivity {
+
+    @NotNull
+    private static final String TAG = CalculatorDialogActivity.class.getSimpleName();
+
+    @NotNull
+    private static final String DIALOG_DATA_EXTRA = "dialog_data";
+
+    public static void showDialog(@NotNull Context context, @NotNull DialogData dialogData) {
+        final Intent intent = new Intent();
+        intent.setClass(context, CalculatorDialogActivity.class);
+        intent.putExtra(DIALOG_DATA_EXTRA, ParcelableDialogData.wrap(dialogData));
+        AndroidUtils2.addFlags(intent, false, context);
+        context.startActivity(intent);
+    }
+
+    @Override
+    protected void onCreate(@Nullable Bundle in) {
+        super.onCreate(in);
+
+        final DialogData dialogData = readDialogData(getIntent());
+        if ( dialogData == null ) {
+            Locator.getInstance().getLogger().error(TAG, "Dialog data is null!");
+            this.finish();
+        } else {
+            setContentView(R.layout.cpp_dialog);
+
+            final String title = dialogData.getTitle();
+            if (!StringUtils.isEmpty(title)) {
+                setTitle(title);
+            }
+
+
+            final Bundle args = new Bundle();
+            args.putParcelable(DIALOG_DATA_EXTRA, ParcelableDialogData.wrap(dialogData));
+            FragmentUtils.createFragment(this, CalculatorDialogFragment.class, R.id.dialog_layout, "dialog", args);
+        }
+    }
+
+    @Nullable
+    private static DialogData readDialogData(@Nullable Intent in) {
+        if ( in != null ) {
+            final Parcelable parcelable = in.getParcelableExtra(DIALOG_DATA_EXTRA);
+            if ( parcelable instanceof DialogData ) {
+                return  (DialogData) parcelable;
+            }
+        }
+
+        return null;
+    }
+
+    @Nullable
+    private static DialogData readDialogData(@Nullable Bundle in) {
+        if ( in != null ) {
+            final Parcelable parcelable = in.getParcelable(DIALOG_DATA_EXTRA);
+            if ( parcelable instanceof DialogData ) {
+                return  (DialogData) parcelable;
+            }
+        }
+
+        return null;
+    }
+
+    public static class CalculatorDialogFragment extends CalculatorFragment {
+
+        public CalculatorDialogFragment() {
+            super(CalculatorFragmentType.dialog);
+        }
+
+        @Override
+        public void onViewCreated(@NotNull View root, Bundle savedInstanceState) {
+            super.onViewCreated(root, savedInstanceState);
+
+            final DialogData dialogData = readDialogData(getArguments());
+
+            if (dialogData != null) {
+                final TextView messageTextView = (TextView) root.findViewById(R.id.cpp_dialog_message_textview);
+                messageTextView.setText(dialogData.getMessage());
+
+                if ( dialogData.getMessageType() == MessageType.error || dialogData.getMessageType() == MessageType.warning ) {
+                    final Button copyButton = (Button) root.findViewById(R.id.cpp_copy_button);
+                    copyButton.setVisibility(View.VISIBLE);
+                    copyButton.setOnClickListener(new View.OnClickListener() {
+                        @Override
+                        public void onClick(View v) {
+                            Locator.getInstance().getClipboard().setText(dialogData.getMessage());
+                            Locator.getInstance().getNotifier().showMessage(CalculatorMessage.newInfoMessage(CalculatorMessages.text_copied));
+                        }
+                    });
+
+                }
+            }
+
+            root.findViewById(R.id.cpp_ok_button).setOnClickListener(new View.OnClickListener() {
+                @Override
+                public void onClick(View v) {
+                    getActivity().finish();
+                }
+            });
+        }
+    }
+
+}
+
diff --git a/android-app/src/main/java/org/solovyev/android/calculator/CalculatorFragmentType.java b/android-app/src/main/java/org/solovyev/android/calculator/CalculatorFragmentType.java
index 2dd01029..e53cca41 100644
--- a/android-app/src/main/java/org/solovyev/android/calculator/CalculatorFragmentType.java
+++ b/android-app/src/main/java/org/solovyev/android/calculator/CalculatorFragmentType.java
@@ -13,10 +13,7 @@ import org.solovyev.android.calculator.math.edit.CalculatorFunctionsFragment;
 import org.solovyev.android.calculator.math.edit.CalculatorOperatorsFragment;
 import org.solovyev.android.calculator.math.edit.CalculatorVarsFragment;
 import org.solovyev.android.calculator.matrix.CalculatorMatrixEditFragment;
-import org.solovyev.android.calculator.plot.CalculatorPlotFragment;
-import org.solovyev.android.calculator.plot.CalculatorPlotFunctionSettingsActivity;
-import org.solovyev.android.calculator.plot.CalculatorPlotFunctionsActivity;
-import org.solovyev.android.calculator.plot.CalculatorPlotRangeActivity;
+import org.solovyev.android.calculator.plot.*;
 
 /**
  * User: Solovyev_S
@@ -38,6 +35,8 @@ public enum CalculatorFragmentType {
 	plotter_function_settings(CalculatorPlotFunctionSettingsActivity.CalculatorPlotFunctionSettingsFragment.class, R.layout.cpp_plot_function_settings_fragment, R.string.cpp_plot_function_settings),
 	plotter_range(CalculatorPlotRangeActivity.CalculatorPlotRangeFragment.class, R.layout.cpp_plot_range_fragment, R.string.cpp_plot_range),
 
+    dialog(CalculatorDialogActivity.CalculatorDialogFragment.class, R.layout.cpp_dialog_fragment, R.string.cpp_message),
+
     about(CalculatorAboutFragment.class, R.layout.about_fragment, R.string.c_about),
     faq(CalculatorHelpFaqFragment.class, R.layout.help_faq_fragment, R.string.c_faq),
     hints(CalculatorHelpHintsFragment.class, R.layout.help_hints_fragment, R.string.c_hints),
diff --git a/android-app/src/main/java/org/solovyev/android/calculator/function/FunctionEditorSaver.java b/android-app/src/main/java/org/solovyev/android/calculator/function/FunctionEditorSaver.java
index 84d3b475..d2b803fa 100644
--- a/android-app/src/main/java/org/solovyev/android/calculator/function/FunctionEditorSaver.java
+++ b/android-app/src/main/java/org/solovyev/android/calculator/function/FunctionEditorSaver.java
@@ -3,7 +3,6 @@ package org.solovyev.android.calculator.function;
 import android.view.View;
 import android.widget.EditText;
 import jscl.CustomFunctionCalculationException;
-import jscl.math.function.CustomFunction;
 import jscl.math.function.Function;
 import jscl.math.function.IFunction;
 import org.jetbrains.annotations.NotNull;
@@ -14,7 +13,6 @@ import org.solovyev.android.calculator.CalculatorMathRegistry;
 import org.solovyev.android.calculator.R;
 import org.solovyev.android.calculator.math.edit.VarEditorSaver;
 import org.solovyev.android.calculator.model.AFunction;
-import org.solovyev.android.calculator.model.MathEntityBuilder;
 import org.solovyev.common.msg.MessageType;
 import org.solovyev.common.text.StringUtils;
 
@@ -104,7 +102,7 @@ public class FunctionEditorSaver implements View.OnClickListener {
 			Locator.getInstance().getNotifier().showMessage(error, MessageType.error);
 		} else {
             try {
-                CalculatorFunctionsMathRegistry.saveFunction(mathRegistry, new BuilderAdapter(builder), editedInstance, source, true);
+                CalculatorFunctionsMathRegistry.saveFunction(mathRegistry, new FunctionBuilderAdapter(builder), editedInstance, source, true);
             } catch (CustomFunctionCalculationException e) {
                 Locator.getInstance().getNotifier().showMessage(e);
             } catch (AFunction.Builder.CreationException e) {
@@ -140,41 +138,4 @@ public class FunctionEditorSaver implements View.OnClickListener {
 		return true;
 	}
 
-	private static final class BuilderAdapter implements MathEntityBuilder<Function> {
-
-		@NotNull
-		private final AFunction.Builder nestedBuilder;
-
-		public BuilderAdapter(@NotNull AFunction.Builder nestedBuilder) {
-			this.nestedBuilder = nestedBuilder;
-		}
-
-		@NotNull
-		@Override
-		public MathEntityBuilder<Function> setName(@NotNull String name) {
-			nestedBuilder.setName(name);
-			return this;
-		}
-
-		@NotNull
-		@Override
-		public MathEntityBuilder<Function> setDescription(@Nullable String description) {
-			nestedBuilder.setDescription(description);
-			return this;
-		}
-
-		@NotNull
-		@Override
-		public MathEntityBuilder<Function> setValue(@Nullable String value) {
-			nestedBuilder.setValue(value);
-			return this;
-		}
-
-		@NotNull
-		@Override
-		public Function create() {
-			final AFunction function = nestedBuilder.create();
-			return new CustomFunction.Builder(function).create();
-		}
-	}
 }
diff --git a/android-app/src/main/java/org/solovyev/android/calculator/model/Messages.java b/android-app/src/main/java/org/solovyev/android/calculator/model/Messages.java
deleted file mode 100644
index d97b0b95..00000000
--- a/android-app/src/main/java/org/solovyev/android/calculator/model/Messages.java
+++ /dev/null
@@ -1,34 +0,0 @@
-package org.solovyev.android.calculator.model;
-
-/**
- * User: serso
- * Date: 11/25/11
- * Time: 1:40 PM
- */
-public final class Messages {
-
-
-	// not intended for instantiation
-	private Messages() {
-		throw new AssertionError();
-	}
-
-	/** Arithmetic error occurred: {0} */
-	public static final String msg_1 = "msg_1";
-
-	/** Too complex expression */
-	public static final String msg_2 = "msg_2";
-
-	/** Too long execution time - check the expression */
-	public static final String msg_3 = "msg_3";
-
-	/** Evaluation was cancelled */
-	public static final String msg_4 = "msg_4";
-
-	/** No parameters are specified for function: {0} */
-	public static final String msg_5 = "msg_5";
-
-	/** Infinite loop is detected in expression */
-	public static final String msg_6 = "msg_6";
-
-}
diff --git a/core/src/main/java/org/solovyev/android/calculator/AbstractCalculatorMathRegistry.java b/core/src/main/java/org/solovyev/android/calculator/AbstractCalculatorMathRegistry.java
index 4d214eb3..d84a4675 100644
--- a/core/src/main/java/org/solovyev/android/calculator/AbstractCalculatorMathRegistry.java
+++ b/core/src/main/java/org/solovyev/android/calculator/AbstractCalculatorMathRegistry.java
@@ -11,8 +11,8 @@ import org.jetbrains.annotations.Nullable;
 import org.solovyev.common.JBuilder;
 import org.solovyev.common.math.MathEntity;
 import org.solovyev.common.math.MathRegistry;
-import org.solovyev.common.msg.Message;
 
+import java.util.ArrayList;
 import java.util.List;
 import java.util.Map;
 
@@ -64,32 +64,40 @@ public abstract class AbstractCalculatorMathRegistry<T extends MathEntity, P ext
     public synchronized void load() {
         final MathEntityPersistenceContainer<P> persistenceContainer = mathEntityDao.load();
 
+        final List<P> notCreatedEntities = new ArrayList<P>();
+
         if (persistenceContainer != null) {
             for (P entity : persistenceContainer.getEntities()) {
                 if (!contains(entity.getName())) {
                     try {
                         final JBuilder<? extends T> builder = createBuilder(entity);
                         add(builder);
-                    } catch (ArithmeticException e) {
+                    } catch (RuntimeException e) {
                         Locator.getInstance().getLogger().error(null, e.getLocalizedMessage(), e);
-                        if (e instanceof Message) {
-                            Locator.getInstance().getNotifier().showMessage((Message)e);
-                        }
+                        notCreatedEntities.add(entity);
                     }
                 }
             }
         }
 
-        /*Log.d(AndroidVarsRegistry.class.getName(), vars.size() + " variables registered!");
-          for (Var var : vars) {
-              Log.d(AndroidVarsRegistry.class.getName(), var.toString());
-          }*/
-	}
+        try {
+            if (!notCreatedEntities.isEmpty()) {
+                final StringBuilder errorMessage = new StringBuilder(notCreatedEntities.size() * 100);
+                for (P notCreatedEntity : notCreatedEntities) {
+                    errorMessage.append(notCreatedEntity).append("\n\n");
+                }
 
-	@NotNull
+                Locator.getInstance().getCalculator().fireCalculatorEvent(CalculatorEventType.show_message_dialog, MessageDialogData.newInstance(CalculatorMessages.newErrorMessage(CalculatorMessages.msg_007, errorMessage.toString()), null));
+            }
+        } catch (RuntimeException e) {
+            // just in case
+            Locator.getInstance().getLogger().error(null, e.getLocalizedMessage(), e);
+        }
+    }
+
+    @NotNull
 	protected abstract JBuilder<? extends T> createBuilder(@NotNull P entity);
 
-
     @Override
 	public synchronized void save() {
         final MathEntityPersistenceContainer<P> container = createPersistenceContainer();
diff --git a/core/src/main/java/org/solovyev/android/calculator/CalculatorEventType.java b/core/src/main/java/org/solovyev/android/calculator/CalculatorEventType.java
index 073ccab4..6a88707c 100644
--- a/core/src/main/java/org/solovyev/android/calculator/CalculatorEventType.java
+++ b/core/src/main/java/org/solovyev/android/calculator/CalculatorEventType.java
@@ -159,6 +159,9 @@ public enum CalculatorEventType {
     show_create_matrix_dialog,
     show_create_function_dialog,
 
+    /** {@link DialogData} */
+    show_message_dialog,
+
     plot_graph,
 
     /** {@link org.solovyev.android.calculator.plot.PlotData} */
diff --git a/core/src/main/java/org/solovyev/android/calculator/CalculatorFunctionsMathRegistry.java b/core/src/main/java/org/solovyev/android/calculator/CalculatorFunctionsMathRegistry.java
index 338a4787..b3d95373 100644
--- a/core/src/main/java/org/solovyev/android/calculator/CalculatorFunctionsMathRegistry.java
+++ b/core/src/main/java/org/solovyev/android/calculator/CalculatorFunctionsMathRegistry.java
@@ -12,6 +12,7 @@ import jscl.math.function.Function;
 import jscl.math.function.IFunction;
 import org.jetbrains.annotations.NotNull;
 import org.jetbrains.annotations.Nullable;
+import org.solovyev.android.calculator.function.FunctionBuilderAdapter;
 import org.solovyev.android.calculator.model.AFunction;
 import org.solovyev.android.calculator.model.Functions;
 import org.solovyev.android.calculator.model.MathEntityBuilder;
@@ -46,20 +47,20 @@ public class CalculatorFunctionsMathRegistry extends AbstractCalculatorMathRegis
 
 	@Override
 	public void load() {
-		super.load();
-
-		add(new CustomFunction.Builder(true, "log", Arrays.asList("base", "x"), "ln(x)/ln(base)"));
-		add(new CustomFunction.Builder(true, "√3", Arrays.asList("x"), "x^(1/3)"));
-		add(new CustomFunction.Builder(true, "√4", Arrays.asList("x"), "x^(1/4)"));
-		add(new CustomFunction.Builder(true, "√n", Arrays.asList("x", "n"), "x^(1/n)"));
+        add(new CustomFunction.Builder(true, "log", Arrays.asList("base", "x"), "ln(x)/ln(base)"));
+        add(new CustomFunction.Builder(true, "√3", Arrays.asList("x"), "x^(1/3)"));
+        add(new CustomFunction.Builder(true, "√4", Arrays.asList("x"), "x^(1/4)"));
+        add(new CustomFunction.Builder(true, "√n", Arrays.asList("x", "n"), "x^(1/n)"));
         add(new CustomFunction.Builder(true, "re", Arrays.asList("x"), "(x+conjugate(x))/2"));
         add(new CustomFunction.Builder(true, "im", Arrays.asList("x"), "(x-conjugate(x))/(2*i)"));
+
+		super.load();
     }
 
 	public static void saveFunction(@NotNull CalculatorMathRegistry<Function> registry,
 									@NotNull MathEntityBuilder<? extends Function> builder,
 									@Nullable IFunction editedInstance,
-									@NotNull Object source, boolean save) throws CustomFunctionCalculationException {
+									@NotNull Object source, boolean save) throws CustomFunctionCalculationException, AFunction.Builder.CreationException {
 		final Function addedFunction = registry.add(builder);
 
 		if (save) {
@@ -111,7 +112,7 @@ public class CalculatorFunctionsMathRegistry extends AbstractCalculatorMathRegis
 	@NotNull
 	@Override
 	protected JBuilder<? extends Function> createBuilder(@NotNull AFunction function) {
-		return new CustomFunction.Builder(function);
+		return new FunctionBuilderAdapter(new AFunction.Builder(function));
 	}
 
     @Override
diff --git a/core/src/main/java/org/solovyev/android/calculator/CalculatorLogger.java b/core/src/main/java/org/solovyev/android/calculator/CalculatorLogger.java
index 568e218f..37fff1c5 100644
--- a/core/src/main/java/org/solovyev/android/calculator/CalculatorLogger.java
+++ b/core/src/main/java/org/solovyev/android/calculator/CalculatorLogger.java
@@ -16,4 +16,6 @@ public interface CalculatorLogger {
 
     void error(@Nullable String tag, @Nullable String message, @NotNull Throwable e);
 
+    void error(@Nullable String tag, @Nullable String message);
+
 }
diff --git a/core/src/main/java/org/solovyev/android/calculator/CalculatorMessages.java b/core/src/main/java/org/solovyev/android/calculator/CalculatorMessages.java
index 59ad99a7..97b73917 100644
--- a/core/src/main/java/org/solovyev/android/calculator/CalculatorMessages.java
+++ b/core/src/main/java/org/solovyev/android/calculator/CalculatorMessages.java
@@ -1,6 +1,8 @@
 package org.solovyev.android.calculator;
 
 import org.jetbrains.annotations.NotNull;
+import org.jetbrains.annotations.Nullable;
+import org.solovyev.common.msg.MessageType;
 
 import java.util.Locale;
 import java.util.ResourceBundle;
@@ -45,12 +47,23 @@ public final class CalculatorMessages {
     /* Infinite loop is detected in expression*/
     public static final String msg_006 = "msg_6";
 
+    /** Some data could not be loaded. Contact authors of application with information below.\n\nUnable to load:\n{0} */
+    public static final String msg_007 = "msg_7";
+
     /* Error */
     public static final String syntax_error = "syntax_error";
 
     /* Result copied to clipboard! */
     public static final String result_copied = "result_copied";
 
+    /* Text copied to clipboard! */
+    public static final String text_copied = "text_copied";
+
 	/*	Last calculated value */
     public static final String ans_description = "ans_description";
+
+    @NotNull
+    public static CalculatorMessage newErrorMessage(@NotNull String messageCode, @Nullable Object... parameters ) {
+        return new CalculatorMessage(messageCode, MessageType.error, parameters);
+    }
 }
diff --git a/core/src/main/java/org/solovyev/android/calculator/DialogData.java b/core/src/main/java/org/solovyev/android/calculator/DialogData.java
new file mode 100644
index 00000000..616ac541
--- /dev/null
+++ b/core/src/main/java/org/solovyev/android/calculator/DialogData.java
@@ -0,0 +1,22 @@
+package org.solovyev.android.calculator;
+
+import org.jetbrains.annotations.NotNull;
+import org.jetbrains.annotations.Nullable;
+import org.solovyev.common.msg.MessageType;
+
+/**
+ * User: serso
+ * Date: 1/20/13
+ * Time: 12:47 PM
+ */
+public interface DialogData {
+
+    @NotNull
+    String getMessage();
+
+    @NotNull
+    MessageType getMessageType();
+
+    @Nullable
+    String getTitle();
+}
diff --git a/core/src/main/java/org/solovyev/android/calculator/MessageDialogData.java b/core/src/main/java/org/solovyev/android/calculator/MessageDialogData.java
new file mode 100644
index 00000000..d17fbfdb
--- /dev/null
+++ b/core/src/main/java/org/solovyev/android/calculator/MessageDialogData.java
@@ -0,0 +1,48 @@
+package org.solovyev.android.calculator;
+
+import org.jetbrains.annotations.NotNull;
+import org.jetbrains.annotations.Nullable;
+import org.solovyev.common.msg.Message;
+import org.solovyev.common.msg.MessageType;
+
+/**
+ * User: serso
+ * Date: 1/20/13
+ * Time: 12:45 PM
+ */
+public class MessageDialogData implements DialogData {
+
+    @NotNull
+    private Message message;
+
+    @Nullable
+    private String title;
+
+    private MessageDialogData(@NotNull Message message, @Nullable String title) {
+        this.message = message;
+        this.title = title;
+    }
+
+    @NotNull
+    public static DialogData newInstance(@NotNull Message message, @Nullable String title) {
+        return new MessageDialogData(message, title);
+    }
+
+    @Override
+    @NotNull
+    public String getMessage() {
+        return message.getLocalizedMessage();
+    }
+
+    @NotNull
+    @Override
+    public MessageType getMessageType() {
+        return message.getMessageType();
+    }
+
+    @Override
+    @Nullable
+    public String getTitle() {
+        return title;
+    }
+}
diff --git a/core/src/main/java/org/solovyev/android/calculator/StringDialogData.java b/core/src/main/java/org/solovyev/android/calculator/StringDialogData.java
new file mode 100644
index 00000000..75b92617
--- /dev/null
+++ b/core/src/main/java/org/solovyev/android/calculator/StringDialogData.java
@@ -0,0 +1,51 @@
+package org.solovyev.android.calculator;
+
+import org.jetbrains.annotations.NotNull;
+import org.jetbrains.annotations.Nullable;
+import org.solovyev.common.msg.MessageType;
+
+/**
+ * User: serso
+ * Date: 1/20/13
+ * Time: 1:01 PM
+ */
+public class StringDialogData implements DialogData {
+
+    @NotNull
+    private final String message;
+
+    @NotNull
+    private final MessageType messageType;
+
+    @Nullable
+    private final String title;
+
+    private StringDialogData(@NotNull String message, @NotNull MessageType messageType, @Nullable String title) {
+        this.message = message;
+        this.messageType = messageType;
+        this.title = title;
+    }
+
+    @NotNull
+    public static DialogData newInstance(@NotNull String message, @NotNull MessageType messageType, @Nullable String title) {
+        return new StringDialogData(message, messageType, title);
+    }
+
+    @NotNull
+    @Override
+    public String getMessage() {
+        return message;
+    }
+
+    @NotNull
+    @Override
+    public MessageType getMessageType() {
+        return messageType;
+    }
+
+    @Nullable
+    @Override
+    public String getTitle() {
+        return title;
+    }
+}
diff --git a/core/src/main/java/org/solovyev/android/calculator/SystemOutCalculatorLogger.java b/core/src/main/java/org/solovyev/android/calculator/SystemOutCalculatorLogger.java
index 0146f95e..a2f939b4 100644
--- a/core/src/main/java/org/solovyev/android/calculator/SystemOutCalculatorLogger.java
+++ b/core/src/main/java/org/solovyev/android/calculator/SystemOutCalculatorLogger.java
@@ -34,4 +34,9 @@ public class SystemOutCalculatorLogger implements CalculatorLogger {
         System.out.println(getTag(tag) + ": " + message);
         e.printStackTrace(System.out);
     }
+
+    @Override
+    public void error(@Nullable String tag, @Nullable String message) {
+        System.out.println(getTag(tag) + ": " + message);
+    }
 }
diff --git a/core/src/main/java/org/solovyev/android/calculator/function/FunctionBuilderAdapter.java b/core/src/main/java/org/solovyev/android/calculator/function/FunctionBuilderAdapter.java
new file mode 100644
index 00000000..05b1f814
--- /dev/null
+++ b/core/src/main/java/org/solovyev/android/calculator/function/FunctionBuilderAdapter.java
@@ -0,0 +1,52 @@
+package org.solovyev.android.calculator.function;
+
+import jscl.CustomFunctionCalculationException;
+import jscl.math.function.CustomFunction;
+import jscl.math.function.Function;
+import org.jetbrains.annotations.NotNull;
+import org.jetbrains.annotations.Nullable;
+import org.solovyev.android.calculator.model.AFunction;
+import org.solovyev.android.calculator.model.MathEntityBuilder;
+
+/**
+* User: serso
+* Date: 1/20/13
+* Time: 12:21 PM
+*/
+public final class FunctionBuilderAdapter implements MathEntityBuilder<Function> {
+
+    @NotNull
+    private final AFunction.Builder nestedBuilder;
+
+    public FunctionBuilderAdapter(@NotNull AFunction.Builder nestedBuilder) {
+        this.nestedBuilder = nestedBuilder;
+    }
+
+    @NotNull
+    @Override
+    public MathEntityBuilder<Function> setName(@NotNull String name) {
+        nestedBuilder.setName(name);
+        return this;
+    }
+
+    @NotNull
+    @Override
+    public MathEntityBuilder<Function> setDescription(@Nullable String description) {
+        nestedBuilder.setDescription(description);
+        return this;
+    }
+
+    @NotNull
+    @Override
+    public MathEntityBuilder<Function> setValue(@Nullable String value) {
+        nestedBuilder.setValue(value);
+        return this;
+    }
+
+    @NotNull
+    @Override
+    public Function create()  throws CustomFunctionCalculationException, AFunction.Builder.CreationException{
+        final AFunction function = nestedBuilder.create();
+        return new CustomFunction.Builder(function).create();
+    }
+}
diff --git a/core/src/main/java/org/solovyev/android/calculator/model/AFunction.java b/core/src/main/java/org/solovyev/android/calculator/model/AFunction.java
index b86aaecb..f38fea25 100644
--- a/core/src/main/java/org/solovyev/android/calculator/model/AFunction.java
+++ b/core/src/main/java/org/solovyev/android/calculator/model/AFunction.java
@@ -13,8 +13,8 @@ import org.simpleframework.xml.Element;
 import org.simpleframework.xml.ElementList;
 import org.simpleframework.xml.Root;
 import org.simpleframework.xml.Transient;
-import org.solovyev.android.calculator.Locator;
 import org.solovyev.android.calculator.CalculatorParseException;
+import org.solovyev.android.calculator.Locator;
 import org.solovyev.android.calculator.MathPersistenceEntity;
 import org.solovyev.common.math.MathEntity;
 import org.solovyev.common.msg.Message;
@@ -122,7 +122,16 @@ public class AFunction implements IFunction, MathPersistenceEntity, Serializable
 		return String.valueOf(this.content);
 	}
 
-	/*
+    @Override
+    public String toString() {
+        return "AFunction{" +
+                "name='" + name + '\'' +
+                ", parameterNames=" + parameterNames +
+                ", content='" + content + '\'' +
+                '}';
+    }
+
+    /*
 	**********************************************************************
 	*
 	*                           GETTERS/SETTERS
@@ -258,7 +267,7 @@ public class AFunction implements IFunction, MathPersistenceEntity, Serializable
 		}
 
 		@NotNull
-		public AFunction create() {
+		public AFunction create()  throws AFunction.Builder.CreationException{
 			final AFunction result;
 			if (id != null) {
 				result = new AFunction(id);
diff --git a/core/src/main/java/org/solovyev/android/calculator/model/Var.java b/core/src/main/java/org/solovyev/android/calculator/model/Var.java
index e3e7b396..9e3f2746 100644
--- a/core/src/main/java/org/solovyev/android/calculator/model/Var.java
+++ b/core/src/main/java/org/solovyev/android/calculator/model/Var.java
@@ -229,10 +229,10 @@ public class Var implements IConstant, MathPersistenceEntity {
 		return !StringUtils.isEmpty(value);
 	}
 
-	@Override
-	public String toString() {
-		return ExtendedConstant.toString(this);
-	}
+    @Override
+    public String toString() {
+        return ExtendedConstant.toString(this);
+    }
 
 	@Override
 	public boolean equals(Object o) {
@@ -250,4 +250,5 @@ public class Var implements IConstant, MathPersistenceEntity {
 	public int hashCode() {
 		return name.hashCode();
 	}
+
 }
diff --git a/core/src/main/resources/org/solovyev/android/calculator/messages.properties b/core/src/main/resources/org/solovyev/android/calculator/messages.properties
index 5407c943..1db9067f 100644
--- a/core/src/main/resources/org/solovyev/android/calculator/messages.properties
+++ b/core/src/main/resources/org/solovyev/android/calculator/messages.properties
@@ -4,7 +4,9 @@ msg_3=Too long execution time - check the expression
 msg_4=Evaluation was cancelled
 msg_5=No parameters are specified for function: {0}
 msg_6=Infinite loop is detected in expression
+msg_7=Some user data could not be loaded. Please contact authors of application with information below.\n\nUnable to load:\n{0}
 
 syntax_error=Error
 result_copied=Result copied to clipboard!
+text_copied=Text copied to clipboard!
 ans_description=Last calculated value
\ No newline at end of file
diff --git a/core/src/main/resources/org/solovyev/android/calculator/messages_ru.properties b/core/src/main/resources/org/solovyev/android/calculator/messages_ru.properties
index 756ff7ad..df1885aa 100644
--- a/core/src/main/resources/org/solovyev/android/calculator/messages_ru.properties
+++ b/core/src/main/resources/org/solovyev/android/calculator/messages_ru.properties
@@ -4,7 +4,10 @@ msg_3=Вычисление выражения занимает слишком м
 msg_4=Вычисление было отменено
 msg_5=Для функции {0} не определены параметры
 msg_6=В выражении найден Бесконечный цикл - проверьте выражение
+msg_7=Некоторые пользовательские данные не могут быть загружены. Пожалуйста, свяжитесь с авторами приложения с информацией ниже.\n\nНевозможно загрузить:\n{0}
+
 
 syntax_error=Ошибка
 result_copied=Результат скопирован в буфер!
+text_copied=Текст скопирован в буфер!
 ans_description=Последний посчитанный результат
\ No newline at end of file