Research page - Unlocked buildings

* The research page now includes a list of buildings unlocked by each
technology when that technology is not in the "unknown" state.

legacyworlds-server-beans-technologies/src/main/java/com/deepclone/lw/beans/game/technologies/ResearchControllerBean.java

@@ -1,6 +1,7 @@
 package com.deepclone.lw.beans.game.technologies;
 
 
+import java.util.ArrayList;
 import java.util.HashMap;
 import java.util.HashSet;
 import java.util.List;
@@ -107,6 +108,8 @@ class ResearchControllerBean
 				tech.setName( translations.get( tech.getName( ) ) );
 				tech.setDescription( translations.get( tech.getDescription( ) ) );
 			}
+
+			tech.setBuildings( this.translateList( tech.getBuildings( ) , translations ) );
 		}
 
 		// Add reverse dependency identifiers
@@ -144,6 +147,7 @@ class ResearchControllerBean
 				identifiers.add( tech.getName( ) );
 				identifiers.add( tech.getDescription( ) );
 			}
+			identifiers.addAll( tech.getBuildings( ) );
 		}
 
 		try {
@@ -154,6 +158,29 @@ class ResearchControllerBean
 	}
 
 
+	/**
+	 * Translate a list of strings
+	 * 
+	 * <p>
+	 * This method fetches translations for a list of string identifiers.
+	 * 
+	 * @param input
+	 *            the list of strings to translate
+	 * @param translations
+	 *            the map of translations returned by {@link #getTranslationsFor(List, String)}
+	 * 
+	 * @return the translated list of strings
+	 */
+	private List< String > translateList( List< String > input , Map< String , String > translations )
+	{
+		ArrayList< String > result = new ArrayList< String >( input.size( ) );
+		for ( String str : input ) {
+			result.add( translations.get( str ) );
+		}
+		return result;
+	}
+
+
 	/**
 	 * Update research priorities
 	 * 

legacyworlds-server-beans-technologies/src/main/java/com/deepclone/lw/beans/game/technologies/ResearchRowMapper.java

@@ -57,13 +57,39 @@ class ResearchRowMapper
 			output.setCompletion( ratio );
 			output.setPriority( rs.getInt( "emptech_priority" ) );
 		}
-		
-		String dependencies = rs.getString( "technology_dependencies" );
-		if ( ! "".equals( dependencies ) ) {
-			output.setDependencies( dependencies.split( "," ) );
-		}
+
+		output.setDependencies( this.splitField( rs , "technology_dependencies" ) );
+		output.setBuildings( this.splitField( rs , "technology_buildings" ) );
 
 		return output;
 	}
 
+
+	/**
+	 * Extract a comma-separated field
+	 * 
+	 * <p>
+	 * This method accesses then extracts the contents of a comma-separated field (for example
+	 * dependencies or unlocked buildings).
+	 * 
+	 * @param rs
+	 *            the SQL result set
+	 * @param field
+	 *            the field's name
+	 * 
+	 * @return an array of strings containing the field's values
+	 * 
+	 * @throws SQLException
+	 *             if something goes wrong while accessing the field
+	 */
+	private String[] splitField( ResultSet rs , String field )
+			throws SQLException
+	{
+		String fValue = rs.getString( field );
+		if ( fValue == null || "".equals( fValue ) ) {
+			return new String[ 0 ];
+		}
+		return fValue.split( "," );
+	}
+
 }

legacyworlds-server-data/db-structure/parts/040-functions/030-tech.sql

@@ -391,6 +391,29 @@ CREATE VIEW tech.buildings_view
 				ON b.name_id = bld.buildable_id;
 
 
+/*
+ * Buildings / technology view
+ * ----------------------------
+ * 
+ * This view generates a parseable list of buildings unlocked by a technology
+ * for each technology.
+ * 
+ * Columns:
+ *		technology_name_id		The technology's name
+ *		technology_buildings	A list of comma-separated building identifiers
+ */
+DROP VIEW IF EXISTS defs.technology_buildings_view CASCADE;
+CREATE VIEW defs.technology_buildings_view
+	AS SELECT technology_name_id ,
+			array_to_string( array_agg( _name.name ) , ',' ) AS technology_buildings
+		FROM defs.technologies _tech
+			LEFT OUTER JOIN tech.buildings_view _building
+				USING ( technology_name_id )
+			LEFT OUTER JOIN defs.strings _name
+				ON _name.id = _building.name_id
+		GROUP BY technology_name_id;
+
+
 --
 -- Ships view
 --

legacyworlds-server-data/db-structure/parts/040-functions/045-empire-research.sql

@@ -447,6 +447,8 @@ CREATE VIEW emp.research_total_weights_view
  *								the technology is not supposed to be visible
  *		technology_dependencies	The technology's dependencies from the
  *									dependencies view
+ *		technology_buildings	The buildings which are unlocked when the
+ *									technology is implemented
  */
 DROP VIEW IF EXISTS emp.technologies_v2_view CASCADE;
 CREATE VIEW emp.technologies_v2_view
@@ -488,7 +490,13 @@ CREATE VIEW emp.technologies_v2_view
 				ELSE
 					NULL::INT
 			END ) AS technology_price ,
-			technology_dependencies
+			technology_dependencies ,
+			( CASE
+				WHEN emptech_visible THEN
+					technology_buildings
+				ELSE
+					''
+			END ) AS technology_buildings
 		FROM emp.technologies_v2
 			INNER JOIN emp.technology_visibility_view
 				USING ( technology_name_id , empire_id )
@@ -496,6 +504,8 @@ CREATE VIEW emp.technologies_v2_view
 				USING ( technology_name_id )
 			INNER JOIN defs.technology_dependencies_view
 				USING ( technology_name_id )
+			INNER JOIN defs.technology_buildings_view
+				USING ( technology_name_id )
 			INNER JOIN defs.strings _name_str
 				ON _name_str.id = _tech.technology_name_id
 			INNER JOIN defs.strings _cat_str

legacyworlds-session/src/main/java/com/deepclone/lw/cmd/player/gdata/empire/ResearchData.java

@@ -78,7 +78,10 @@ public class ResearchData
 	private List< String > dependencies = new ArrayList< String >( );
 
 	/** List of identifiers of technologies that depend on the current technology. */
-	private List< String > revDependencies = new LinkedList< String >( );
+	private final List< String > revDependencies = new LinkedList< String >( );
+
+	/** List of buildings the current technology unlocks. */
+	private List< String > buildings = new ArrayList< String >( );
 
 
 	/**
@@ -320,6 +323,41 @@ public class ResearchData
 	}
 
 
+	/**
+	 * Update the list of unlocked buildings
+	 * 
+	 * @param buildings
+	 *            the new list of buildings
+	 */
+	public void setBuildings( String[] buildings )
+	{
+		this.buildings = Arrays.asList( buildings );
+	}
+
+
+	/**
+	 * Update the list of unlocked buildings
+	 * 
+	 * @param buildings
+	 *            the new list of buildings
+	 */
+	public void setBuildings( List< String > buildings )
+	{
+		this.buildings = buildings;
+	}
+
+
+	/**
+	 * Gets the list of buildings the current technology unlocks.
+	 * 
+	 * @return the list of buildings the current technology unlocks
+	 */
+	public List< String > getBuildings( )
+	{
+		return this.buildings;
+	}
+
+
 	/**
 	 * Research page entry comparison
 	 * 

legacyworlds-web-main/Content/Raw/WEB-INF/fm/en/types/research.ftl

@@ -236,6 +236,15 @@
 						</ul>
 					</div>
 				</#if>
+				<#if tech.buildings?has_content>
+					<div class="tech-info"><strong>Unlocks buildings:</strong>
+						<ul>
+							<#list tech.buildings as building>
+								<li>${building}</li>
+							</#list>
+						</ul>
+					</div>
+				</#if>
 			</div>
 		</#list>
 	</div>

legacyworlds-web-main/Content/Raw/WEB-INF/fm/fr/types/research.ftl

@@ -236,6 +236,15 @@
 						</ul>
 					</div>
 				</#if>
+				<#if tech.buildings?has_content>
+					<div class="tech-info"><strong>Nouveaux bâtiments:</strong>
+						<ul>
+							<#list tech.buildings as building>
+								<li>${building}</li>
+							</#list>
+						</ul>
+					</div>
+				</#if>
 			</div>
 		</#list>
 	</div>