svn commit: r124726 - incubator/directory/dns/trunk/core/src/java/org/apache/dns/messages/value

[er...@apache.org]

Author: erodriguez
Date: Sun Jan  9 03:18:51 2005
New Revision: 124726

URL: http://svn.apache.org/viewcvs?view=rev&rev=124726
Log:
Typesafe enumerators used by DNS messages.
Added:
   incubator/directory/dns/trunk/core/src/java/org/apache/dns/messages/value/MessageType.java
   incubator/directory/dns/trunk/core/src/java/org/apache/dns/messages/value/OpCode.java   (contents, props changed)
   incubator/directory/dns/trunk/core/src/java/org/apache/dns/messages/value/ResponseCode.java   (contents, props changed)

Added: incubator/directory/dns/trunk/core/src/java/org/apache/dns/messages/value/MessageType.java
Url: http://svn.apache.org/viewcvs/incubator/directory/dns/trunk/core/src/java/org/apache/dns/messages/value/MessageType.java?view=auto&rev=124726
==============================================================================
--- (empty file)
+++ incubator/directory/dns/trunk/core/src/java/org/apache/dns/messages/value/MessageType.java	Sun Jan  9 03:18:51 2005
@@ -0,0 +1,77 @@
+/*
+ *   Copyright 2005 The Apache Software Foundation
+ *
+ *   Licensed under the Apache License, Version 2.0 (the "License");
+ *   you may not use this file except in compliance with the License.
+ *   You may obtain a copy of the License at
+ *
+ *       http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *   Unless required by applicable law or agreed to in writing, software
+ *   distributed under the License is distributed on an "AS IS" BASIS,
+ *   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *   See the License for the specific language governing permissions and
+ *   limitations under the License.
+ *
+ */
+
+package org.apache.dns.messages.value;
+
+import java.util.Arrays;
+import java.util.Collections;
+import java.util.List;
+
+
+public final class MessageType implements Comparable
+{
+	/**
+	 * Enumeration elements are constructed once upon class loading.
+	 * Order of appearance here determines the order of compareTo.
+	 */
+	public static final MessageType QUERY    = new MessageType( 0, "Query" );
+	public static final MessageType RESPONSE = new MessageType( 1, "Response" );
+
+	public String toString()
+    {
+		return name;
+	}
+
+	public int compareTo( Object that )
+    {
+		return ordinal - ( (MessageType) that ).ordinal;
+	}
+
+	public static MessageType getTypeByOrdinal( int type )
+    {
+		for ( int ii = 0; ii < values.length; ii++ )
+			if ( values[ ii ].ordinal == type )
+				return values[ ii ];
+		return QUERY;
+	}
+	
+	public int getOrdinal()
+    {
+		return ordinal;
+	}
+
+	/// PRIVATE /////
+	private final String name;
+	private final int    ordinal;
+
+	/**
+	 * Private constructor prevents construction outside of this class.
+	 */
+	private MessageType( int ordinal, String name )
+    {
+        this.ordinal = ordinal;
+		this.name    = name;
+	}
+
+	/**
+	 * These two lines are all that's necessary to export a List of VALUES.
+	 */
+	private static final MessageType[] values = { QUERY, RESPONSE };
+	// VALUES needs to be located here, otherwise illegal forward reference
+	public static final List VALUES = Collections.unmodifiableList( Arrays.asList( values ) );
+}
+

Added: incubator/directory/dns/trunk/core/src/java/org/apache/dns/messages/value/OpCode.java
Url: http://svn.apache.org/viewcvs/incubator/directory/dns/trunk/core/src/java/org/apache/dns/messages/value/OpCode.java?view=auto&rev=124726
==============================================================================
--- (empty file)
+++ incubator/directory/dns/trunk/core/src/java/org/apache/dns/messages/value/OpCode.java	Sun Jan  9 03:18:51 2005
@@ -0,0 +1,80 @@
+/*
+ *   Copyright 2005 The Apache Software Foundation
+ *
+ *   Licensed under the Apache License, Version 2.0 (the "License");
+ *   you may not use this file except in compliance with the License.
+ *   You may obtain a copy of the License at
+ *
+ *       http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *   Unless required by applicable law or agreed to in writing, software
+ *   distributed under the License is distributed on an "AS IS" BASIS,
+ *   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *   See the License for the specific language governing permissions and
+ *   limitations under the License.
+ *
+ */
+
+package org.apache.dns.messages.value;
+
+import java.util.Arrays;
+import java.util.Collections;
+import java.util.List;
+
+
+public final class OpCode implements Comparable
+{
+	/**
+	 * Enumeration elements are constructed once upon class loading.
+	 * Order of appearance here determines the order of compareTo.
+	 */
+	public static final OpCode QUERY  = new OpCode( 0, "Standard query" );
+	public static final OpCode IQUERY = new OpCode( 1, "Inverse query" );
+	public static final OpCode STATUS = new OpCode( 2, "Server status request" );
+	public static final OpCode NOTIFY = new OpCode( 4, "Zone transfer notification" );
+	public static final OpCode UPDATE = new OpCode( 5, "Dynamic update message" );
+
+	public String toString()
+    {
+		return name;
+	}
+
+	public int compareTo( Object that )
+    {
+		return ordinal - ( (OpCode) that ).ordinal;
+	}
+
+	public static OpCode getTypeByOrdinal( int type )
+    {
+		for ( int ii = 0; ii < values.length; ii++ )
+			if ( values[ ii ].ordinal == type )
+				return values[ ii ];
+		return QUERY;
+	}
+	
+	public int getOrdinal()
+    {
+		return ordinal;
+	}
+
+	/// PRIVATE /////
+	private final String name;
+	private final int    ordinal;
+
+	/**
+	 * Private constructor prevents construction outside of this class.
+	 */
+	private OpCode( int ordinal, String name )
+    {
+        this.ordinal = ordinal;
+		this.name    = name;
+	}
+
+	/**
+	 * These two lines are all that's necessary to export a List of VALUES.
+	 */
+	private static final OpCode[] values = { QUERY, IQUERY, STATUS, NOTIFY, UPDATE };
+	// VALUES needs to be located here, otherwise illegal forward reference
+	public static final List VALUES = Collections.unmodifiableList( Arrays.asList( values ) );
+}
+

Added: incubator/directory/dns/trunk/core/src/java/org/apache/dns/messages/value/ResponseCode.java
Url: http://svn.apache.org/viewcvs/incubator/directory/dns/trunk/core/src/java/org/apache/dns/messages/value/ResponseCode.java?view=auto&rev=124726
==============================================================================
--- (empty file)
+++ incubator/directory/dns/trunk/core/src/java/org/apache/dns/messages/value/ResponseCode.java	Sun Jan  9 03:18:51 2005
@@ -0,0 +1,82 @@
+/*
+ *   Copyright 2005 The Apache Software Foundation
+ *
+ *   Licensed under the Apache License, Version 2.0 (the "License");
+ *   you may not use this file except in compliance with the License.
+ *   You may obtain a copy of the License at
+ *
+ *       http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *   Unless required by applicable law or agreed to in writing, software
+ *   distributed under the License is distributed on an "AS IS" BASIS,
+ *   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *   See the License for the specific language governing permissions and
+ *   limitations under the License.
+ *
+ */
+
+package org.apache.dns.messages.value;
+
+import java.util.Arrays;
+import java.util.Collections;
+import java.util.List;
+
+
+public final class ResponseCode implements Comparable
+{
+	/**
+	 * Enumeration elements are constructed once upon class loading.
+	 * Order of appearance here determines the order of compareTo.
+	 */
+	public static final ResponseCode NO_ERROR        = new ResponseCode( 0, "No error condition." );
+	public static final ResponseCode FORMAT_ERROR    = new ResponseCode( 1, "The name server was unable to interpret the query." );
+	public static final ResponseCode SERVER_FAILURE  = new ResponseCode( 2, "The name server was unable to process this query due to a problem with the name server." );
+	public static final ResponseCode NAME_ERROR      = new ResponseCode( 3, "The domain name referenced in the query does not exist." );
+	public static final ResponseCode NOT_IMPLEMENTED = new ResponseCode( 4, "The name server does not support the requested kind of query." );
+	public static final ResponseCode REFUSED         = new ResponseCode( 5, "The name server refuses to perform the specified operation for policy reasons." );
+
+	public String toString()
+    {
+		return name;
+	}
+
+	public int compareTo( Object that )
+    {
+		return ordinal - ( (ResponseCode) that ).ordinal;
+	}
+
+	public static ResponseCode getTypeByOrdinal( int type )
+    {
+		for ( int ii = 0; ii < values.length; ii++ )
+			if ( values[ ii ].ordinal == type )
+				return values[ ii ];
+		return NO_ERROR;
+	}
+	
+	public int getOrdinal()
+    {
+		return ordinal;
+	}
+
+	/// PRIVATE /////
+	private final String name;
+	private final int    ordinal;
+
+	/**
+	 * Private constructor prevents construction outside of this class.
+	 */
+	private ResponseCode( int ordinal, String name )
+    {
+        this.ordinal = ordinal;
+		this.name    = name;
+	}
+
+	/**
+	 * These two lines are all that's necessary to export a List of VALUES.
+	 */
+	private static final ResponseCode[] values = { NO_ERROR, FORMAT_ERROR, SERVER_FAILURE,
+			NAME_ERROR, NOT_IMPLEMENTED, REFUSED };
+	// VALUES needs to be located here, otherwise illegal forward reference
+	public static final List VALUES = Collections.unmodifiableList( Arrays.asList( values ) );
+}
+