Improved search query support.

platform-independent/java/algorithm/src/main/java/com/lyndir/masterpassword/util/Utilities.java

@@ -27,6 +27,13 @@ public final class Utilities {
         return value;
     }
 
+    public static String ifNotNullOrEmptyElse(@Nullable final String value, @Nonnull final String emptyValue) {
+        if ((value == null) || value.isEmpty())
+            return emptyValue;
+
+        return value;
+    }
+
     @Nonnull
     public static <T, R> R ifNotNullElse(@Nullable final T value, final Function<T, R> consumer, @Nonnull final R nullValue) {
         if (value == null)

platform-independent/java/gui/src/main/java/com/lyndir/masterpassword/gui/util/CollectionListModel.java

@@ -1,10 +1,11 @@
 package com.lyndir.masterpassword.gui.util;
 
+import static com.google.common.base.Preconditions.*;
+
 import com.google.common.base.Predicates;
 import com.google.common.collect.ImmutableList;
 import com.google.common.collect.Iterables;
 import com.lyndir.lhunath.opal.system.logging.Logger;
-import com.lyndir.lhunath.opal.system.util.ObjectUtils;
 import java.util.*;
 import java.util.function.Consumer;
 import javax.annotation.Nullable;
@@ -82,7 +83,7 @@ public class CollectionListModel<E> extends AbstractListModel<E>
         }
 
         if ((selectedItem == null) || !model.contains( selectedItem ))
-            setSelectedItem( getElementAt( 0 ) );
+            selectItem( getElementAt( 0 ) );
     }
 
     @SafeVarargs
@@ -91,10 +92,17 @@ public class CollectionListModel<E> extends AbstractListModel<E>
     }
 
     @Override
-    @SuppressWarnings({ "unchecked", "SuspiciousMethodCalls" })
+    @Deprecated
-    public synchronized void setSelectedItem(@Nullable final Object newSelectedItem) {
+    @SuppressWarnings("unchecked")
-        if (!Objects.equals( selectedItem, newSelectedItem )) {
+    public synchronized void setSelectedItem(@Nullable final Object/* E */ newSelectedItem) {
-            selectedItem = (E) newSelectedItem;
+        selectItem( (E) newSelectedItem );
+    }
+
+    public synchronized CollectionListModel<E> selectItem(@Nullable final E newSelectedItem) {
+        if (Objects.equals( selectedItem, newSelectedItem ))
+            return this;
+
+        selectedItem = newSelectedItem;
 
         fireContentsChanged( this, -1, -1 );
         //noinspection ObjectEquality
@@ -103,7 +111,7 @@ public class CollectionListModel<E> extends AbstractListModel<E>
 
         if (selectionConsumer != null)
             selectionConsumer.accept( selectedItem );
-        }
+        return this;
     }
 
     @Nullable
@@ -112,11 +120,6 @@ public class CollectionListModel<E> extends AbstractListModel<E>
         return selectedItem;
     }
 
-    public CollectionListModel<E> select(final E selectedItem) {
-        setSelectedItem( selectedItem );
-        return this;
-    }
-
     public synchronized void registerList(final JList<E> list) {
         // TODO: This class should probably implement ListSelectionModel instead.
         if (this.list != null)
@@ -139,7 +142,7 @@ public class CollectionListModel<E> extends AbstractListModel<E>
     @Override
     public synchronized CollectionListModel<E> selection(@Nullable final E selectedItem, @Nullable final Consumer<E> selectionConsumer) {
         this.selectionConsumer = null;
-        setSelectedItem( selectedItem );
+        selectItem( selectedItem );
 
         return selection( selectionConsumer );
     }
@@ -147,7 +150,7 @@ public class CollectionListModel<E> extends AbstractListModel<E>
     @Override
     public synchronized void valueChanged(final ListSelectionEvent event) {
         //noinspection ObjectEquality
-        if (!event.getValueIsAdjusting() && (event.getSource() == list) && (list.getModel() == this)) {
+        if (!event.getValueIsAdjusting() && (event.getSource() == list) && (checkNotNull( list ).getModel() == this)) {
             selectedItem = list.getSelectedValue();
 
             if (selectionConsumer != null)

platform-independent/java/gui/src/main/java/com/lyndir/masterpassword/gui/view/FilesPanel.java

@@ -64,7 +64,7 @@ public class FilesPanel extends JPanel implements MPFileUserManager.Listener, Ma
 
     @Override
     public void onUserSelected(@Nullable final MPUser<?> user) {
-        usersModel.setSelectedItem( user );
+        usersModel.selectItem( user );
         avatarButton.setIcon( Res.icons().avatar( (user == null)? 0: user.getAvatar() ) );
     }
 }

platform-independent/java/gui/src/main/java/com/lyndir/masterpassword/gui/view/UserContentPanel.java

@@ -15,7 +15,6 @@ import com.lyndir.masterpassword.gui.util.*;
 import com.lyndir.masterpassword.gui.util.Platform;
 import com.lyndir.masterpassword.model.*;
 import com.lyndir.masterpassword.model.impl.*;
-import com.lyndir.masterpassword.util.Utilities;
 import java.awt.*;
 import java.awt.datatransfer.StringSelection;
 import java.awt.datatransfer.Transferable;
@@ -486,8 +485,9 @@ public class UserContentPanel extends JPanel implements MasterPassword.Listener,
         private final JLabel                                                    answerField;
         private final JLabel                                                    queryLabel;
         private final JTextField                                                queryField;
-        private final CollectionListModel<MPSite<?>> sitesModel;
+        private final CollectionListModel<MPQuery.Result<? extends MPSite<?>>>  sitesModel;
-        private final JList<MPSite<?>>               sitesList;
+        private final CollectionListModel<MPQuery.Result<? extends MPQuestion>> questionsModel;
+        private final JList<MPQuery.Result<? extends MPSite<?>>>                sitesList;
 
         private Future<?> updateSitesJob;
 
@@ -517,6 +517,7 @@ public class UserContentPanel extends JPanel implements MasterPassword.Listener,
             answerField = Components.heading( SwingConstants.CENTER );
             answerField.setForeground( Res.colors().highlightFg() );
             answerField.setFont( Res.fonts().bigValueFont( SIZE_RESULT ) );
+            questionsModel = new CollectionListModel<MPQuery.Result<? extends MPQuestion>>().selection( this::showQuestionItem );
 
             add( Components.heading( user.getFullName(), SwingConstants.CENTER ) );
 
@@ -538,7 +539,7 @@ public class UserContentPanel extends JPanel implements MasterPassword.Listener,
             add( Components.strut() );
 
             add( Components.scrollPane( sitesList = Components.list(
-                    sitesModel = new CollectionListModel<MPSite<?>>().selection( this::showSiteResult ),
+                    sitesModel = new CollectionListModel<MPQuery.Result<? extends MPSite<?>>>().selection( this::showSiteItem ),
                     this::getSiteDescription ) ) );
             add( Components.strut() );
 
@@ -580,7 +581,7 @@ public class UserContentPanel extends JPanel implements MasterPassword.Listener,
         }
 
         public void showSiteSettings() {
-            MPSite<?> site = sitesModel.getSelectedItem();
+            MPSite<?> site = getSite();
             if (site == null)
                 return;
 
@@ -627,22 +628,22 @@ public class UserContentPanel extends JPanel implements MasterPassword.Listener,
         }
 
         public void showSiteQuestions() {
-            MPSite<?> site = sitesModel.getSelectedItem();
+            MPSite<?> site = getSite();
             if (site == null)
                 return;
 
-            CollectionListModel<MPQuestion> questionsModel = new CollectionListModel<MPQuestion>().selection( this::showQuestionResult );
+            JList<MPQuery.Result<? extends MPQuestion>> questionsList =
-            JList<MPQuestion> questionsList = Components.list(
+                    Components.list( questionsModel, this::getQuestionDescription );
-                    questionsModel, question -> Strings.isNullOrEmpty( question.getKeyword() )? "<site>": question.getKeyword() );
+            JTextField queryField = Components.textField( null, queryText -> Res.job( () -> {
-            JTextField queryField = Components.textField( null, query -> Res.job( () -> {
+                MPQuery                                          query         = new MPQuery( queryText );
-                Collection<MPQuestion> questions = new LinkedList<>( site.findQuestions( query ) );
+                Collection<MPQuery.Result<? extends MPQuestion>> questionItems = new LinkedList<>( site.findQuestions( query ) );
-                if (questions.stream().noneMatch( question -> question.getKeyword().equalsIgnoreCase( query ) ))
+                if (questionItems.stream().noneMatch( MPQuery.Result::isExact ))
-                    questions.add( new MPNewQuestion( site, Utilities.ifNotNullElse( query, "" ) ) );
+                    questionItems.add( MPQuery.Result.allOf( new MPNewQuestion( site, query.getQuery() ), query.getQuery() ) );
 
-                Res.ui( () -> questionsModel.set( questions ) );
+                Res.ui( () -> questionsModel.set( questionItems ) );
             } ) );
             queryField.putClientProperty( "JTextField.variant", "search" );
-            queryField.addActionListener( event -> useQuestion( questionsModel.getSelectedItem() ) );
+            queryField.addActionListener( this::useQuestion );
             queryField.addKeyListener( new KeyAdapter() {
                 @Override
                 public void keyPressed(final KeyEvent event) {
@@ -672,7 +673,7 @@ public class UserContentPanel extends JPanel implements MasterPassword.Listener,
         }
 
         public void showSiteValues() {
-            MPSite<?> site = sitesModel.getSelectedItem();
+            MPSite<?> site = getSite();
             if (site == null)
                 return;
 
@@ -717,7 +718,7 @@ public class UserContentPanel extends JPanel implements MasterPassword.Listener,
         }
 
         public void showSiteKeys() {
-            MPSite<?> site = sitesModel.getSelectedItem();
+            MPSite<?> site = getSite();
             if (site == null)
                 return;
 
@@ -787,7 +788,7 @@ public class UserContentPanel extends JPanel implements MasterPassword.Listener,
         }
 
         public void deleteSite() {
-            MPSite<?> site = sitesModel.getSelectedItem();
+            MPSite<?> site = getSite();
             if (site == null)
                 return;
 
@@ -797,55 +798,62 @@ public class UserContentPanel extends JPanel implements MasterPassword.Listener,
                 user.deleteSite( site );
         }
 
-        private String getSiteDescription(@Nonnull final MPSite<?> site) {
+        private String getSiteDescription(@Nullable final MPQuery.Result<? extends MPSite<?>> item) {
+            MPSite<?> site = (item != null)? item.getOption(): null;
+            if (site == null)
+                return " ";
             if (site instanceof MPNewSite)
-                return strf( "<html><strong>%s</strong> &lt;Add new site&gt;</html>", queryField.getText() );
+                return strf( "<html><strong>%s</strong> &lt;Add new site&gt;</html>", item.getKeyAsHTML() );
 
             ImmutableList.Builder<Object> parameters = ImmutableList.builder();
-            try {
             MPFileSite                    fileSite   = (site instanceof MPFileSite)? (MPFileSite) site: null;
             if (fileSite != null)
                 parameters.add( Res.format( fileSite.getLastUsed() ) );
             parameters.add( site.getAlgorithm().version() );
             parameters.add( strf( "#%d", site.getCounter().longValue() ) );
-                parameters.add( strf( "<em>%s</em>", site.getLogin() ) );
             if ((fileSite != null) && (fileSite.getUrl() != null))
                 parameters.add( fileSite.getUrl() );
-            }
-            catch (final MPAlgorithmException | MPKeyUnavailableException e) {
-                logger.err( e, "While generating site description." );
-                parameters.add( e.getLocalizedMessage() );
-            }
 
-            return strf( "<html><strong>%s</strong> (%s)</html>", site.getSiteName(),
+            return strf( "<html><strong>%s</strong> (%s)</html>", item.getKeyAsHTML(),
                          Joiner.on( " - " ).skipNulls().join( parameters.build() ) );
         }
 
-        private void useSite(final ActionEvent event) {
+        private String getQuestionDescription(@Nullable final MPQuery.Result<? extends MPQuestion> item) {
-            MPSite<?> site = sitesModel.getSelectedItem();
+            MPQuestion question = (item != null)? item.getOption(): null;
-            if (site instanceof MPNewSite) {
+            if (question == null)
-                if (JOptionPane.YES_OPTION == JOptionPane.showConfirmDialog(
+                return "<site>";
-                        this, strf( "<html>Remember the site <strong>%s</strong>?</html>", site.getSiteName() ),
+            if (question instanceof MPNewQuestion)
-                        "New Site", JOptionPane.YES_NO_OPTION )) {
+                return strf( "<html>%s &lt;Add new question&gt;</html>", item.getKeyAsHTML() );
-                    sitesModel.setSelectedItem( user.addSite( site.getSiteName() ) );
+
-                    useSite( event );
+            return strf( "<html>%s</html>", item.getKeyAsHTML() );
         }
+
+        private void useSite(final ActionEvent event) {
+            MPSite<?> site = getSite();
+            if (site instanceof MPNewSite) {
+                if (JOptionPane.YES_OPTION != JOptionPane.showConfirmDialog(
+                        this, strf( "<html>Remember the site <strong>%s</strong>?</html>", site.getSiteName() ),
+                        "New Site", JOptionPane.YES_NO_OPTION ))
                     return;
+
+                site = user.addSite( site.getSiteName() );
             }
 
             boolean   loginResult = (copyLoginKeyStroke.getModifiers() & event.getModifiers()) != 0;
+            MPSite<?> fsite       = site;
             showSiteResult( site, loginResult, result -> {
                 if (result == null)
                     return;
 
-                if (site instanceof MPFileSite)
+                if (fsite instanceof MPFileSite)
-                    ((MPFileSite) site).use();
+                    ((MPFileSite) fsite).use();
 
                 copyResult( result );
             } );
         }
 
-        private void showSiteResult(@Nullable final MPSite<?> site) {
+        private void showSiteItem(@Nullable final MPQuery.Result<? extends MPSite<?>> item) {
+            MPSite<?> site = (item != null)? item.getOption(): null;
             showSiteResult( site, false, result -> {
             } );
         }
@@ -862,8 +870,11 @@ public class UserContentPanel extends JPanel implements MasterPassword.Listener,
 
                 return null;
             }, resultCallback.andThen( result -> Res.ui( () -> {
-                passwordLabel.setText( ((result != null) && (site != null))? strf( "Your password for %s:", site.getSiteName() ): " " );
+                if (!loginResult && (site != null)) {
+                    passwordLabel.setText( (result != null)? strf( "Your password for %s:", site.getSiteName() ): " " );
                     passwordField.setText( (result != null)? result: " " );
+                }
+
                 settingsButton.setEnabled( result != null );
                 questionsButton.setEnabled( result != null );
                 editButton.setEnabled( result != null );
@@ -872,30 +883,33 @@ public class UserContentPanel extends JPanel implements MasterPassword.Listener,
             } ) ) );
         }
 
-        private void useQuestion(@Nullable final MPQuestion question) {
+        private void useQuestion(final ActionEvent event) {
+            MPQuestion question = getQuestion();
             if (question instanceof MPNewQuestion) {
-                if (JOptionPane.YES_OPTION == JOptionPane.showConfirmDialog(
+                if (JOptionPane.YES_OPTION != JOptionPane.showConfirmDialog(
                         this,
                         strf( "<html>Remember the security question with keyword <strong>%s</strong>?</html>",
                               Strings.isNullOrEmpty( question.getKeyword() )? "<empty>": question.getKeyword() ),
-                        "New Question", JOptionPane.YES_NO_OPTION )) {
+                        "New Question", JOptionPane.YES_NO_OPTION ))
-                    useQuestion( question.getSite().addQuestion( question.getKeyword() ) );
-                }
                     return;
+
+                question = question.getSite().addQuestion( question.getKeyword() );
             }
 
+            MPQuestion fquestion = question;
             showQuestionResult( question, result -> {
                 if (result == null)
                     return;
 
-                if (question instanceof MPFileQuestion)
+                if (fquestion instanceof MPFileQuestion)
-                    ((MPFileQuestion) question).use();
+                    ((MPFileQuestion) fquestion).use();
 
                 copyResult( result );
             } );
         }
 
-        private void showQuestionResult(@Nullable final MPQuestion question) {
+        private void showQuestionItem(@Nullable final MPQuery.Result<? extends MPQuestion> item) {
+            MPQuestion question = (item != null)? item.getOption(): null;
             showQuestionResult( question, answer -> {
             } );
         }
@@ -939,6 +953,24 @@ public class UserContentPanel extends JPanel implements MasterPassword.Listener,
             } );
         }
 
+        @Nullable
+        private MPSite<?> getSite() {
+            MPQuery.Result<? extends MPSite<?>> selectedSite = sitesModel.getSelectedItem();
+            if (selectedSite == null)
+                return null;
+
+            return selectedSite.getOption();
+        }
+
+        @Nullable
+        private MPQuestion getQuestion() {
+            MPQuery.Result<? extends MPQuestion> selectedQuestion = questionsModel.getSelectedItem();
+            if (selectedQuestion == null)
+                return null;
+
+            return selectedQuestion.getOption();
+        }
+
         @Override
         public void keyTyped(final KeyEvent event) {
         }
@@ -955,25 +987,27 @@ public class UserContentPanel extends JPanel implements MasterPassword.Listener,
                 sitesList.dispatchEvent( event );
         }
 
-        private synchronized void updateSites(@Nullable final String query) {
+        private synchronized void updateSites(@Nullable final String queryText) {
             if (updateSitesJob != null)
                 updateSitesJob.cancel( true );
 
             updateSitesJob = Res.job( () -> {
-                Collection<MPSite<?>> sites = new LinkedList<>( user.findSites( query ) );
+                MPQuery query = new MPQuery( queryText );
+                Collection<MPQuery.Result<? extends MPSite<?>>> siteItems =
+                        new LinkedList<>( user.findSites( query ) );
 
-                if (!Strings.isNullOrEmpty( query ))
+                if (!Strings.isNullOrEmpty( queryText ))
-                    if (sites.stream().noneMatch( site -> site.getSiteName().equalsIgnoreCase( query ) ))
+                    if (siteItems.stream().noneMatch( MPQuery.Result::isExact ))
-                        sites.add( new MPNewSite( user, query ) );
+                        siteItems.add( MPQuery.Result.allOf( new MPNewSite( user, query.getQuery() ), query.getQuery() ) );
 
-                Res.ui( () -> sitesModel.set( sites ) );
+                Res.ui( () -> sitesModel.set( siteItems ) );
             } );
         }
 
         @Override
         public void onUserUpdated(final MPUser<?> user) {
             updateSites( queryField.getText() );
-            showSiteResult( sitesModel.getSelectedItem() );
+            showSiteItem( sitesModel.getSelectedItem() );
         }
 
         @Override

platform-independent/java/model/src/main/java/com/lyndir/masterpassword/model/MPQuery.java

@@ -0,0 +1,150 @@
+package com.lyndir.masterpassword.model;
+
+import java.util.*;
+import java.util.function.Function;
+import javax.annotation.Nonnull;
+import javax.annotation.Nullable;
+import org.jetbrains.annotations.NotNull;
+
+
+/**
+ * @author lhunath, 2018-09-11
+ */
+public class MPQuery {
+
+    @Nonnull
+    private final String query;
+
+    public MPQuery(@Nullable final String query) {
+        this.query = (query != null)? query: "";
+    }
+
+    @Nonnull
+    public String getQuery() {
+        return query;
+    }
+
+    /**
+     * @return {@code true} if this query is contained wholly inside the given {@code key}.
+     */
+    @Nonnull
+    public <T extends Comparable<? super T>> Optional<Result<T>> find(final T option, final Function<T, CharSequence> keyForOption) {
+        CharSequence key    = keyForOption.apply( option );
+        Result<T>    result = Result.noneOf( option, key );
+        if (query.isEmpty())
+            return Optional.of( result );
+        if (key.length() == 0)
+            return Optional.empty();
+
+        // Consume query and key characters until one of them runs out, recording any matches against the result's key.
+        int q = 0, k = 0;
+        while ((q < query.length()) && (k < key.length())) {
+            if (query.charAt( q ) == key.charAt( k )) {
+                result.keyMatchedAt( k );
+                ++q;
+            }
+
+            ++k;
+        }
+
+        // If query is consumed, the result is a hit.
+        return (q >= query.length())? Optional.of( result ): Optional.empty();
+    }
+
+    public static class Result<T extends Comparable<? super T>> implements Comparable<Result<T>> {
+
+        private final T            option;
+        private final CharSequence key;
+        private final boolean[]    keyMatches;
+
+        Result(final T option, final CharSequence key) {
+            this.option = option;
+            this.key = key;
+
+            keyMatches = new boolean[key.length()];
+        }
+
+        public static <T extends Comparable<? super T>> Result<T> noneOf(final T option, final CharSequence key) {
+            return new Result<>( option, key );
+        }
+
+        public static <T extends Comparable<? super T>> Result<T> allOf(final T option, final CharSequence key) {
+            Result<T> result = noneOf( option, key );
+            Arrays.fill( result.keyMatches, true );
+            return result;
+        }
+
+        @Nonnull
+        public T getOption() {
+            return option;
+        }
+
+        @Nonnull
+        public CharSequence getKey() {
+            return key;
+        }
+
+        public String getKeyAsHTML() {
+            return getKeyAsHTML( "u" );
+        }
+
+        @SuppressWarnings({ "MagicCharacter", "HardcodedFileSeparator" })
+        public String getKeyAsHTML(final String mark) {
+            String        closeMark = mark.contains( " " )? mark.substring( 0, mark.indexOf( ' ' ) ): mark;
+            StringBuilder html      = new StringBuilder();
+            boolean       marked    = false;
+
+            for (int i = 0; i < key.length(); ++i) {
+                if (keyMatches[i] && !marked) {
+                    html.append( '<' ).append( mark ).append( '>' );
+                    marked = true;
+                } else if (!keyMatches[i] && marked) {
+                    html.append( '<' ).append( '/' ).append( closeMark ).append( '>' );
+                    marked = false;
+                }
+
+                html.append( key.charAt( i ) );
+            }
+
+            if (marked)
+                html.append( '<' ).append( '/' ).append( closeMark ).append( '>' );
+
+            return html.toString();
+        }
+
+        public boolean[] getKeyMatches() {
+            return keyMatches.clone();
+        }
+
+        public boolean isExact() {
+            for (final boolean keyMatch : keyMatches)
+                if (!keyMatch)
+                    return false;
+
+            return true;
+        }
+
+        private void keyMatchedAt(final int k) {
+            keyMatches[k] = true;
+        }
+
+        @Override
+        public int compareTo(@NotNull final Result<T> o) {
+            return getOption().compareTo( o.getOption() );
+        }
+
+        @Override
+        public boolean equals(final Object o) {
+            if (!(o instanceof Result))
+                return false;
+
+            Result<?> r = (Result<?>) o;
+            return Objects.equals( option, r.option ) && Objects.equals( key, r.key ) && Arrays.equals( keyMatches, r.keyMatches );
+        }
+
+        @Override
+        public int hashCode() {
+            return getOption().hashCode();
+        }
+    }
+}

platform-independent/java/model/src/main/java/com/lyndir/masterpassword/model/MPSite.java

@@ -117,5 +117,5 @@ public interface MPSite<Q extends MPQuestion> extends Comparable<MPSite<?>> {
     Collection<Q> getQuestions();
 
     @Nonnull
-    ImmutableCollection<Q> findQuestions(@Nullable String query);
+    ImmutableCollection<MPQuery.Result<Q>> findQuestions(MPQuery query);
 }

platform-independent/java/model/src/main/java/com/lyndir/masterpassword/model/MPUser.java

@@ -112,7 +112,7 @@ public interface MPUser<S extends MPSite<?>> extends Comparable<MPUser<?>> {
     Collection<S> getSites();
 
     @Nonnull
-    ImmutableCollection<S> findSites(@Nullable String query);
+    ImmutableCollection<MPQuery.Result<S>> findSites(MPQuery query);
 
     void addListener(Listener listener);
 

platform-independent/java/model/src/main/java/com/lyndir/masterpassword/model/impl/MPBasicSite.java

@@ -21,7 +21,6 @@ package com.lyndir.masterpassword.model.impl;
 import static com.lyndir.lhunath.opal.system.util.ObjectUtils.*;
 import static com.lyndir.lhunath.opal.system.util.StringUtils.*;
 
-import com.google.common.base.Strings;
 import com.google.common.collect.ImmutableCollection;
 import com.google.common.collect.ImmutableSortedSet;
 import com.google.common.primitives.UnsignedInteger;
@@ -193,11 +192,10 @@ public abstract class MPBasicSite<U extends MPUser<?>, Q extends MPQuestion> ext
 
     @Nonnull
     @Override
-    public ImmutableCollection<Q> findQuestions(@Nullable final String query) {
+    public ImmutableCollection<MPQuery.Result<Q>> findQuestions(final MPQuery query) {
-        ImmutableSortedSet.Builder<Q> results = ImmutableSortedSet.naturalOrder();
+        ImmutableSortedSet.Builder<MPQuery.Result<Q>> results = ImmutableSortedSet.naturalOrder();
-        for (final Q question : getQuestions())
+        for (final Q question : questions)
-            if (Strings.isNullOrEmpty( query ) || question.getKeyword().startsWith( query ))
+            query.find( question, MPQuestion::getKeyword ).ifPresent( results::add );
-                results.add( question );
 
         return results.build();
     }

platform-independent/java/model/src/main/java/com/lyndir/masterpassword/model/impl/MPBasicUser.java

@@ -20,7 +20,6 @@ package com.lyndir.masterpassword.model.impl;
 
 import static com.lyndir.lhunath.opal.system.util.StringUtils.*;
 
-import com.google.common.base.Strings;
 import com.google.common.collect.ImmutableCollection;
 import com.google.common.collect.ImmutableSortedSet;
 import com.lyndir.lhunath.opal.system.CodeUtils;
@@ -201,11 +200,10 @@ public abstract class MPBasicUser<S extends MPBasicSite<?, ?>> extends Changeabl
 
     @Nonnull
     @Override
-    public ImmutableCollection<S> findSites(@Nullable final String query) {
+    public ImmutableCollection<MPQuery.Result<S>> findSites(final MPQuery query) {
-        ImmutableSortedSet.Builder<S> results = ImmutableSortedSet.naturalOrder();
+        ImmutableSortedSet.Builder<MPQuery.Result<S>> results = ImmutableSortedSet.naturalOrder();
-        for (final S site : getSites())
+        for (final S site : sites.values())
-            if (Strings.isNullOrEmpty( query ) || site.getSiteName().startsWith( query ))
+            query.find( site, MPSite::getSiteName ).ifPresent( results::add );
-                results.add( site );
 
         return results.build();
     }

public/site

@@ -1 +1 @@
-Subproject commit ff77947d449b9d92bc254e04a0506f4b5badae62
+Subproject commit 914a60cd25707f4ac456ad225580a86a5a95e637