Object name validator component

* Moved the component from the -user package to the -naming package

* Added a separate interface to the component

legacyworlds-server-beans-naming/src/main/java/com/deepclone/lw/beans/naming/ObjectNameValidatorBean.java

@@ -0,0 +1,136 @@
+package com.deepclone.lw.beans.naming;
+
+
+import java.util.regex.Pattern;
+
+import com.deepclone.lw.cmd.ObjectNameError;
+import com.deepclone.lw.interfaces.naming.ObjectNameValidator;
+
+
+
+/**
+ * Object name validation component
+ * 
+ * <p>
+ * This component implements the simple name "pre-validation" component, used before an empire or
+ * map name is sent to the database.
+ * 
+ * <p>
+ * By default, it will accept names that are between 2 and 20 characters. That may be modified in
+ * the component's initialisation.
+ * 
+ * @author <a href="mailto:tseeker@legacyworlds.com">E. Benoît</a>
+ */
+class ObjectNameValidatorBean
+		implements ObjectNameValidator
+{
+	/** Default minimal length */
+	public static final int MIN_LENGTH = 2;
+
+	/** Default maximal length */
+	public static final int MAX_LENGTH = 20;
+
+	/**
+	 * Invalid patterns
+	 * 
+	 * <p>
+	 * This constant lists patterns which must be rejected systematically.
+	 */
+	private static final Pattern fail[] = {
+			Pattern.compile( "\\s\\s+" ) , Pattern.compile( "[^A-Za-z0-9 _\\'\\!\\:\\,\\-\\.\\*@\\[\\]\\{\\}]" )
+	};
+
+	/**
+	 * Required patterns
+	 * 
+	 * <p>
+	 * This constant lists patters which must be present for a name to be considered valid.
+	 */
+	private static final Pattern needed[] = {
+		Pattern.compile( "[A-Za-z]" )
+	};
+
+	/** Minimal length of a name */
+	private int minLength = MIN_LENGTH;
+
+	/** Maximal length of a name */
+	private int maxLength = MAX_LENGTH;
+
+
+	/**
+	 * Set the minimal length of a name
+	 * 
+	 * @param length
+	 *            the new minimal length
+	 */
+	public void setMinLength( Integer length )
+	{
+		this.minLength = length;
+	}
+
+
+	/**
+	 * Set the maximal length of a name
+	 * 
+	 * @param length
+	 *            the new maximal length
+	 */
+	public void setMaxLength( Integer length )
+	{
+		this.maxLength = length;
+	}
+
+
+	/*
+	 * (non-Javadoc)
+	 * 
+	 * @see com.deepclone.lw.beans.user.ObjectNameValidator#validate(java.lang.String)
+	 */
+	@Override
+	public ObjectNameError validate( String name )
+	{
+		return this.validate( name , this.minLength , this.maxLength );
+	}
+
+
+	/*
+	 * (non-Javadoc)
+	 * 
+	 * @see com.deepclone.lw.beans.user.ObjectNameValidator#customValidate(java.lang.String, int,
+	 * int)
+	 */
+	@Override
+	public ObjectNameError validate( String name , int minLength , int maxLength )
+	{
+		if ( "".equals( name.trim( ) ) ) {
+			return ObjectNameError.EMPTY;
+		}
+
+		// No leading or trailing spaces
+		if ( !name.equals( name.trim( ) ) ) {
+			return ObjectNameError.INVALID;
+		}
+
+		// Check length
+		int length = name.length( );
+		if ( length < minLength || length > maxLength ) {
+			return ObjectNameError.INVALID;
+		}
+
+		// Check bad patterns
+		for ( Pattern p : ObjectNameValidatorBean.fail ) {
+			if ( p.matcher( name ).find( ) ) {
+				return ObjectNameError.INVALID;
+			}
+		}
+
+		// Check good patterns
+		for ( Pattern p : ObjectNameValidatorBean.needed ) {
+			if ( !p.matcher( name ).find( ) ) {
+				return ObjectNameError.INVALID;
+			}
+		}
+
+		return null;
+	}
+}

legacyworlds-server-beans-naming/src/main/resources/configuration/meta/naming.xml

@@ -4,6 +4,7 @@
 	xsi:schemaLocation="
                         http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.1.xsd">
 
+	<bean id="objectNameValidator" class="com.deepclone.lw.beans.naming.ObjectNameValidatorBean" />
 	<bean id="namesManager" class="com.deepclone.lw.beans.naming.NamesManagerBean" />
 	<bean id="namingDAO" class="com.deepclone.lw.beans.naming.NamingDAOBean" />