Add group editing support to the UI

Admins and members who have the "owner" flag set to true may edit
the contents of a group by changing its description or editing its
membership list.  Changes are mostly done live, as soon as the user
presses the action keys.

Account lookup is completed through the suggest service, helping
the user to complete an account identity by name and/or the user's
preferred email address.

Signed-off-by: Shawn O. Pearce <sop@google.com>

appjar/src/main/java/com/google/gerrit/client/reviewdb/Account.java

@@ -16,8 +16,11 @@ package com.google.gerrit.client.reviewdb;
 
 import com.google.gwtorm.client.Column;
 import com.google.gwtorm.client.IntKey;
+import com.google.gwtorm.client.OrmException;
+import com.google.gwtorm.client.ResultSet;
 
 import java.sql.Timestamp;
+import java.util.List;
 
 /** Preferences and information about a single user. */
 public final class Account {
@@ -27,6 +30,37 @@ public final class Account {
   /** Typical valid choices for the default context setting. */
   public static final short[] CONTEXT_CHOICES = {3, 10, 25, 50, 75, 100};
 
+  /**
+   * Locate exactly one account matching the name or name/email string.
+   * 
+   * @param db open database handle to use for the query.
+   * @param nameOrEmail a string of the format
+   *        "Full Name <email@example>", or just the preferred email
+   *        address ("email@example"), or a full name.
+   * @return the single account that matches; null if no account matches or
+   *         there are multiple candidates.
+   */
+  public static Account find(final ReviewDb db, final String nameOrEmail)
+      throws OrmException {
+    final int lt = nameOrEmail.indexOf('<');
+    final int gt = nameOrEmail.indexOf('>');
+    if (lt >= 0 && gt > lt) {
+      final String email = nameOrEmail.substring(lt + 1, gt);
+      return one(db.accounts().byPreferredEmail(email));
+    }
+
+    if (nameOrEmail.contains("@")) {
+      return one(db.accounts().byPreferredEmail(nameOrEmail));
+    }
+
+    return one(db.accounts().suggestByFullName(nameOrEmail, nameOrEmail, 2));
+  }
+
+  private static Account one(final ResultSet<Account> rs) {
+    final List<Account> r = rs.toList();
+    return r.size() == 1 ? r.get(0) : null;
+  }
+
   /** Key local to Gerrit to identify a user. */
   public static class Id extends IntKey<com.google.gwtorm.client.Key<?>> {
     @Column

appjar/src/main/java/com/google/gerrit/client/reviewdb/AccountAccess.java

@@ -28,4 +28,12 @@ public interface AccountAccess extends Access<Account, Account.Id> {
 
   @Query("WHERE preferredEmail = ? LIMIT 2")
   ResultSet<Account> byPreferredEmail(String email) throws OrmException;
+
+  @Query("WHERE fullName >= ? AND fullName <= ? ORDER BY fullName LIMIT ?")
+  ResultSet<Account> suggestByFullName(String nameA, String nameB, int limit)
+      throws OrmException;
+
+  @Query("WHERE preferredEmail >= ? AND preferredEmail <= ? ORDER BY preferredEmail LIMIT ?")
+  ResultSet<Account> suggestByPreferredEmail(String nameA, String nameB,
+      int limit) throws OrmException;
 }

appjar/src/main/java/com/google/gerrit/client/reviewdb/AccountGroup.java

@@ -65,6 +65,13 @@ public final class AccountGroup {
     protected void set(int newValue) {
       id = newValue;
     }
+
+    /** Parse an AccountGroup.Id out of a string representation. */
+    public static Id parse(final String str) {
+      final Id r = new Id();
+      r.fromString(str);
+      return r;
+    }
   }
 
   @Column

appjar/src/main/java/com/google/gerrit/client/reviewdb/AccountGroupMember.java

@@ -41,6 +41,10 @@ public final class AccountGroupMember {
       return accountId;
     }
 
+    public AccountGroup.Id getAccountGroupId(){
+      return groupId;
+    }
+
     @Override
     public com.google.gwtorm.client.Key<?>[] members() {
       return new com.google.gwtorm.client.Key<?>[] {groupId};
@@ -61,6 +65,10 @@ public final class AccountGroupMember {
     key = k;
   }
 
+  public AccountGroupMember.Key getKey() {
+    return key;
+  }
+
   public Account.Id getAccountId() {
     return key.accountId;
   }

appjar/src/main/java/com/google/gerrit/client/reviewdb/AccountGroupMemberAccess.java

@@ -28,6 +28,9 @@ public interface AccountGroupMemberAccess extends
   @Query("WHERE key.accountId = ?")
   ResultSet<AccountGroupMember> byAccount(Account.Id id) throws OrmException;
 
+  @Query("WHERE key.accountId = ? AND owner = 'Y'")
+  ResultSet<AccountGroupMember> owned(Account.Id id) throws OrmException;
+
   @Query("WHERE key.groupId = ?")
   ResultSet<AccountGroupMember> byGroup(AccountGroup.Id id) throws OrmException;
 }