Defer non-constant assert messages to improve performance.

Original pull request: #1079.

Author: FrankSpitulski

spring-data-cassandra/src/main/java/org/springframework/data/cassandra/core/convert/MappingCassandraConverter.java

@@ -86,6 +86,7 @@
  * @author Antoine Toulme
  * @author John Blum
  * @author Christoph Strobl
+ * @author Frank Spitulski
  */
 public class MappingCassandraConverter extends AbstractCassandraConverter
 		implements ApplicationContextAware, BeanClassLoaderAware {
@@ -522,7 +523,7 @@ private void writeWhereFromObject(Object source, Where sink, CassandraPersistent
 
 		Object id = extractId(source, entity);
 
-		Assert.notNull(id, String.format("No Id value found in object %s", source));
+		Assert.notNull(id, () -> String.format("No Id value found in object %s", source));
 
 		CassandraPersistentProperty idProperty = entity.getIdProperty();
 		CassandraPersistentProperty compositeIdProperty = null;
@@ -601,7 +602,7 @@ private void writeWhere(MapId id, Where sink, CassandraPersistentEntity<?> entit
 	private void writeWhere(ConvertingPropertyAccessor<?> accessor, Where sink, CassandraPersistentEntity<?> entity) {
 
 		Assert.isTrue(entity.isCompositePrimaryKey(),
-				String.format("Entity [%s] is not a composite primary key", entity.getName()));
+				() -> String.format("Entity [%s] is not a composite primary key", entity.getName()));
 
 		for (CassandraPersistentProperty property : entity) {
 			TypeCodec<Object> codec = getCodec(property);
@@ -685,7 +686,7 @@ public Object getId(Object object, CassandraPersistentEntity<?> entity) {
 		ConvertingPropertyAccessor<?> propertyAccessor = newConvertingPropertyAccessor(object, entity);
 
 		Assert.isTrue(entity.getType().isAssignableFrom(object.getClass()),
-				String.format("Given instance of type [%s] is not compatible with expected type [%s]",
+				() -> String.format("Given instance of type [%s] is not compatible with expected type [%s]",
 						object.getClass().getName(), entity.getType().getName()));
 
 		if (object instanceof MapIdentifiable) {

spring-data-cassandra/src/main/java/org/springframework/data/cassandra/core/convert/RowReader.java

@@ -35,6 +35,7 @@
  * Helpful class to read a column's value from a row, with possible type conversion.
  *
  * @author Mark Paluch
+ * @author Frank Spitulski
  * @since 3.0
  */
 class RowReader {
@@ -165,7 +166,7 @@ private int getColumnIndex(String columnName) {
 
 		int index = columns.firstIndexOf(columnName);
 
-		Assert.isTrue(index > -1, String.format("Column [%s] does not exist in table", columnName));
+		Assert.isTrue(index > -1, () -> String.format("Column [%s] does not exist in table", columnName));
 
 		return index;
 	}

spring-data-cassandra/src/main/java/org/springframework/data/cassandra/core/cql/generator/AlterUserTypeCqlGenerator.java

@@ -27,6 +27,7 @@
  *
  * @author Fabio J. Mendes
  * @author Mark Paluch
+ * @author Frank Spitulski
  * @since 1.5
  * @see AlterUserTypeSpecification
  * @see AddColumnSpecification
@@ -58,7 +59,7 @@ public StringBuilder toCql(StringBuilder cql) {
 		Assert.notNull(getSpecification().getName(), "User type name must not be null");
 
 		Assert.isTrue(!getSpecification().getChanges().isEmpty(),
-				String.format("User type [%s] does not contain fields", getSpecification().getName()));
+				() -> String.format("User type [%s] does not contain fields", getSpecification().getName()));
 
 		return changesCql(preambleCql(cql)).append(";");
 	}

spring-data-cassandra/src/main/java/org/springframework/data/cassandra/core/cql/generator/CreateUserTypeCqlGenerator.java

@@ -24,6 +24,7 @@
  *
  * @author Fabio J. Mendes
  * @author Mark Paluch
+ * @author Frank Spitulski
  * @since 1.5
  * @see CreateUserTypeSpecification
  */
@@ -52,7 +53,7 @@ public StringBuilder toCql(StringBuilder cql) {
 		Assert.notNull(getSpecification().getName(), "User type name must not be null");
 
 		Assert.isTrue(!getSpecification().getFields().isEmpty(),
-				String.format("User type [%s] does not contain fields", getSpecification().getName().asCql(true)));
+				() -> String.format("User type [%s] does not contain fields", getSpecification().getName().asCql(true)));
 
 		return columns(preambleCql(cql)).append(";");
 	}

spring-data-cassandra/src/main/java/org/springframework/data/cassandra/core/mapping/BasicCassandraPersistentTupleProperty.java

@@ -27,6 +27,7 @@
  * Cassandra Tuple specific {@link CassandraPersistentProperty} implementation.
  *
  * @author Mark Paluch
+ * @author Frank Spitulski
  * @since 2.1
  * @see Element
  */
@@ -68,7 +69,8 @@ private Integer findOrdinal() {
 		}
 
 		Assert.isTrue(ordinal >= 0,
-				String.format("Element ordinal must be greater or equal to zero for property [%s] in entity [%s]", getName(),
+				() -> String.format("Element ordinal must be greater or equal to zero for property [%s] in entity [%s]",
+						getName(),
 						getOwner().getName()));
 
 		return ordinal;

spring-data-cassandra/src/main/java/org/springframework/data/cassandra/core/mapping/CassandraPersistentProperty.java

@@ -35,6 +35,7 @@
  * @author Mark Paluch
  * @author John Blum
  * @author Christoph Strobl
+ * @author Frank Spitulski
  */
 public interface CassandraPersistentProperty
 		extends PersistentProperty<CassandraPersistentProperty>, ApplicationContextAware {
@@ -81,8 +82,8 @@ default CqlIdentifier getRequiredColumnName() {
 
 		CqlIdentifier columnName = getColumnName();
 
-		Assert.state(columnName != null, String.format("No column name available for this persistent property [%1$s.%2$s]",
-				getOwner().getName(), getName()));
+		Assert.state(columnName != null, () -> String
+				.format("No column name available for this persistent property [%1$s.%2$s]", getOwner().getName(), getName()));
 
 		return columnName;
 	}
@@ -115,7 +116,7 @@ default int getRequiredOrdinal() {
 
 		Integer ordinal = getOrdinal();
 
-		Assert.state(ordinal != null, String.format("No ordinal available for this persistent property [%1$s.%2$s]",
+		Assert.state(ordinal != null, () -> String.format("No ordinal available for this persistent property [%1$s.%2$s]",
 				getOwner().getName(), getName()));
 
 		return ordinal;