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From elecha...@apache.org
Subject svn commit: r201899 - /directory/sandbox/trunk/asn1-new-codec/src/java/org/apache/asn1/ldap/codec/grammars/ModifyRequestGrammar.java
Date Sun, 26 Jun 2005 20:13:10 GMT
Author: elecharny
Date: Sun Jun 26 13:13:10 2005
New Revision: 201899

URL: http://svn.apache.org/viewcvs?rev=201899&view=rev
Log:
Created the ModifyRequest grammar

Added:
    directory/sandbox/trunk/asn1-new-codec/src/java/org/apache/asn1/ldap/codec/grammars/ModifyRequestGrammar.java

Added: directory/sandbox/trunk/asn1-new-codec/src/java/org/apache/asn1/ldap/codec/grammars/ModifyRequestGrammar.java
URL: http://svn.apache.org/viewcvs/directory/sandbox/trunk/asn1-new-codec/src/java/org/apache/asn1/ldap/codec/grammars/ModifyRequestGrammar.java?rev=201899&view=auto
==============================================================================
--- directory/sandbox/trunk/asn1-new-codec/src/java/org/apache/asn1/ldap/codec/grammars/ModifyRequestGrammar.java
(added)
+++ directory/sandbox/trunk/asn1-new-codec/src/java/org/apache/asn1/ldap/codec/grammars/ModifyRequestGrammar.java
Sun Jun 26 13:13:10 2005
@@ -0,0 +1,404 @@
+/*
+ *   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.asn1.ldap.codec.grammars;
+
+import org.apache.asn1.DecoderException;
+import org.apache.asn1.ber.containers.IAsn1Container;
+import org.apache.asn1.ber.grammar.AbstractGrammar;
+import org.apache.asn1.ber.grammar.GrammarAction;
+import org.apache.asn1.ber.grammar.GrammarTransition;
+import org.apache.asn1.ber.grammar.IGrammar;
+import org.apache.asn1.ber.tlv.TLV;
+import org.apache.asn1.ldap.codec.LdapMessageContainer;
+import org.apache.asn1.ldap.codec.primitives.LdapDN;
+import org.apache.asn1.ldap.codec.primitives.LdapString;
+import org.apache.asn1.ldap.codec.utils.IntegerDecoder;
+import org.apache.asn1.ldap.pojo.LdapMessage;
+import org.apache.asn1.ldap.pojo.ModifyRequest;
+import org.apache.asn1.primitives.OctetString;
+
+import org.apache.log4j.Logger;
+
+import javax.naming.directory.DirContext;
+
+
+/**
+ * This class implements the ModifyRequest LDAP message. All the actions are declared in
this
+ * class. As it is a singleton, these declaration are only done once.
+ * 
+ * @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a>
+ */
+public class ModifyRequestGrammar extends AbstractGrammar implements IGrammar
+{
+    //~ Static fields/initializers -----------------------------------------------------------------
+
+    /** The logger */
+    private static final Logger log = Logger.getLogger( ModifyRequestGrammar.class );
+
+    /** Logging speed up  */
+    private static final boolean DEBUG = log.isDebugEnabled();
+
+    /** The instance of grammar. ModifyRequestGrammar is a singleton */
+    private static IGrammar instance = new ModifyRequestGrammar();
+
+    //~ Constructors -------------------------------------------------------------------------------
+
+    /**
+     * Creates a new ModifyRequestGrammar object.
+     */
+    private ModifyRequestGrammar()
+    {
+        name       = ModifyRequestGrammar.class.getName();
+        statesEnum = LdapStatesEnum.getInstance();
+
+        // Intitialisation
+        super.transitions = new GrammarTransition[LdapStatesEnum.LAST_MODIFY_REQUEST_STATE][256];
+
+        //============================================================================================
+        // ModifyRequest Message
+        //============================================================================================
+        // LdapMessage ::= ... ModifyRequest ...
+        // ModifyRequest ::= [APPLICATION 6] SEQUENCE { (Tag)
+        // Nothing to do.
+        super.transitions[LdapStatesEnum.MODIFY_REQUEST_TAG][0x66] = new GrammarTransition(
+                LdapStatesEnum.MODIFY_REQUEST_TAG,
+                LdapStatesEnum.MODIFY_REQUEST_VALUE, null );
+
+        // LdapMessage ::= ... ModifyRequest ...
+        // ModifyRequest ::= [APPLICATION 6] SEQUENCE { (Value)
+        // Create the structure
+        super.transitions[LdapStatesEnum.MODIFY_REQUEST_VALUE][0x66] = new GrammarTransition(
+                LdapStatesEnum.MODIFY_REQUEST_VALUE, LdapStatesEnum.MODIFY_REQUEST_OBJECT_TAG,
+                new GrammarAction( "Init ModifyRequest" )
+                {
+                    public void action( IAsn1Container container ) throws DecoderException
+                    {
+
+                        LdapMessageContainer ldapMessageContainer = ( LdapMessageContainer
)
+                            container;
+                        LdapMessage          ldapMessage          =
+                            ldapMessageContainer.getLdapMessage();
+
+                        // Now, we can allocate the ModifyRequest Object
+                        // And we associate it to the ldapMessage Object
+                        ldapMessage.setProtocolOP( new ModifyRequest() );
+                    }
+                } );
+
+        // LdapMessage ::= ... ModifyRequest ...
+        // ModifyRequest ::= [APPLICATION 6] SEQUENCE {
+        //    object      LDAPDN, (Tag)
+        //    ...
+        // Nothing to do
+        super.transitions[LdapStatesEnum.MODIFY_REQUEST_OBJECT_TAG][0x04] = new GrammarTransition(
+                LdapStatesEnum.MODIFY_REQUEST_OBJECT_TAG,
+                LdapStatesEnum.MODIFY_REQUEST_OBJECT_VALUE, null );
+
+        // LdapMessage ::= ... ModifyRequest ...
+        // ModifyRequest ::= [APPLICATION 6] SEQUENCE {
+        //    object      LDAPDN, (Value)
+        //    ...
+        // Store the object name.
+        super.transitions[LdapStatesEnum.MODIFY_REQUEST_OBJECT_VALUE][0x04] =
+            new GrammarTransition(
+                LdapStatesEnum.MODIFY_REQUEST_OBJECT_VALUE,
+                LdapStatesEnum.MODIFY_REQUEST_MODIFICATIONS_TAG,
+                new GrammarAction( "Store Modify request object Value" )
+                {
+                    public void action( IAsn1Container container ) throws DecoderException
+                    {
+
+                        LdapMessageContainer ldapMessageContainer = ( LdapMessageContainer
)
+                            container;
+                        LdapMessage          ldapMessage          =
+                            ldapMessageContainer.getLdapMessage();
+                        ModifyRequest        modifyRequest        = ldapMessage.getModifyRequest();
+
+                        TLV                  tlv = ldapMessageContainer.getCurrentTLV();
+
+                        // Store the value.
+                        if ( tlv.getLength().getLength() == 0 )
+                        {
+                            modifyRequest.setObject( LdapDN.EMPTY_STRING );
+                        }
+                        else
+                        {
+                            modifyRequest.setObject( new LdapDN(
+                                    tlv.getValue().getData() ) );
+                        }
+                    }
+                } );
+
+        // LdapMessage ::= ... ModifyRequest ...
+        // ModifyRequest ::= [APPLICATION 6] SEQUENCE {
+        //    ...
+        //    modification    *SEQUENCE* OF SEQUENCE { (Tag)
+        // Nothing to do
+        super.transitions[LdapStatesEnum.MODIFY_REQUEST_MODIFICATIONS_TAG][0x30] =
+            new GrammarTransition(
+                LdapStatesEnum.MODIFY_REQUEST_MODIFICATIONS_TAG,
+                LdapStatesEnum.MODIFY_REQUEST_MODIFICATIONS_VALUE, null );
+
+        // LdapMessage ::= ... ModifyRequest ...
+        // ModifyRequest ::= [APPLICATION 6] SEQUENCE {
+        //    ...
+        //    modification    *SEQUENCE* OF SEQUENCE { (Value)
+        // Allocates the array list
+        super.transitions[LdapStatesEnum.MODIFY_REQUEST_MODIFICATIONS_VALUE][0x30] =
+            new GrammarTransition(
+                LdapStatesEnum.MODIFY_REQUEST_MODIFICATIONS_VALUE,
+                LdapStatesEnum.MODIFY_REQUEST_MODIFICATION_SEQUENCE_TAG,
+                new GrammarAction( "Init modifications array list" )
+                {
+                    public void action( IAsn1Container container ) throws DecoderException
+                    {
+
+                        LdapMessageContainer ldapMessageContainer = ( LdapMessageContainer
)
+                            container;
+                        LdapMessage          ldapMessage          =
+                            ldapMessageContainer.getLdapMessage();
+                        ModifyRequest        modifyRequest        = ldapMessage.getModifyRequest();
+
+                        modifyRequest.initModifications();
+                    }
+                } );
+
+        // LdapMessage ::= ... ModifyRequest ...
+        // ModifyRequest ::= [APPLICATION 6] SEQUENCE {
+        //    ...
+        //    modification    SEQUENCE OF *SEQUENCE* { (Tag)
+        // Nothing to do
+        super.transitions[LdapStatesEnum.MODIFY_REQUEST_MODIFICATION_SEQUENCE_TAG][0x30]
=
+            new GrammarTransition(
+                LdapStatesEnum.MODIFY_REQUEST_MODIFICATION_SEQUENCE_TAG,
+                LdapStatesEnum.MODIFY_REQUEST_MODIFICATION_SEQUENCE_VALUE, null );
+
+        // LdapMessage ::= ... ModifyRequest ...
+        // ModifyRequest ::= [APPLICATION 6] SEQUENCE {
+        //    ...
+        //    modification    SEQUENCE OF *SEQUENCE* { (Tag)
+        // Nothing to do
+        // This is a loop, when dealing with more than one modification
+        super.transitions[LdapStatesEnum.MODIFY_REQUEST_ATTRIBUTE_VALUE_OR_MODIFICATION_TAG][0x30]
=
+            new GrammarTransition(
+                LdapStatesEnum.MODIFY_REQUEST_ATTRIBUTE_VALUE_OR_MODIFICATION_TAG,
+                LdapStatesEnum.MODIFY_REQUEST_MODIFICATION_SEQUENCE_VALUE, null );
+
+        // LdapMessage ::= ... ModifyRequest ...
+        // ModifyRequest ::= [APPLICATION 6] SEQUENCE {
+        //    ...
+        //    modification    SEQUENCE OF *SEQUENCE* { (Value)
+        // Nothing to do
+        super.transitions[LdapStatesEnum.MODIFY_REQUEST_MODIFICATION_SEQUENCE_VALUE][0x30]
=
+            new GrammarTransition(
+                LdapStatesEnum.MODIFY_REQUEST_MODIFICATION_SEQUENCE_VALUE,
+                LdapStatesEnum.MODIFY_REQUEST_OPERATION_TAG, null );
+
+        //    ...
+        //    modification    SEQUENCE OF SEQUENCE {
+        //        operation       ENUMERATED { (Tag)
+        //            add     (0),
+        //            delete  (1),
+        //            replace (2) },
+        //    ...
+        // Nothing to do
+        super.transitions[LdapStatesEnum.MODIFY_REQUEST_OPERATION_TAG][0x0A] =
+            new GrammarTransition(
+                LdapStatesEnum.MODIFY_REQUEST_OPERATION_TAG,
+                LdapStatesEnum.MODIFY_REQUEST_OPERATION_VALUE, null );
+
+        //    ...
+        //    modification    SEQUENCE OF SEQUENCE {
+        //        operation       ENUMERATED { (Value)
+        //            add     (0),
+        //            delete  (1),
+        //            replace (2) },
+        //    ...
+        // Store the operation type. We put it in a temporary storage,
+        // because we can't allocate a ModificationItem before knowing
+        // the attributes'name.
+        super.transitions[LdapStatesEnum.MODIFY_REQUEST_OPERATION_VALUE][0x0A] =
+            new GrammarTransition(
+                LdapStatesEnum.MODIFY_REQUEST_OPERATION_VALUE,
+                LdapStatesEnum.MODIFY_REQUEST_MODIFICATION_TAG,
+                new GrammarAction( "Store operation type" )
+                {
+                    public void action( IAsn1Container container ) throws DecoderException
+                    {
+
+                        LdapMessageContainer ldapMessageContainer = ( LdapMessageContainer
)
+                            container;
+                        LdapMessage          ldapMessage          =
+                            ldapMessageContainer.getLdapMessage();
+                        ModifyRequest        modifyRequest        = ldapMessage.getModifyRequest();
+
+                        TLV                  tlv = ldapMessageContainer.getCurrentTLV();
+
+                        // Decode the operation type
+                        int operation = IntegerDecoder.parse( tlv.getValue(),
+                                DirContext.ADD_ATTRIBUTE, DirContext.REPLACE_ATTRIBUTE );
+
+                        // Store the current operation.
+                        modifyRequest.setCurrentOperation( operation );
+                    }
+                } );
+
+        //    ...
+        //    modification    SEQUENCE OF SEQUENCE {
+        //        modification    AttributeTypeAndValues } }
+        //    AttributeTypeAndValues ::= SEQUENCE { (Tag)
+        // Nothing to do
+        super.transitions[LdapStatesEnum.MODIFY_REQUEST_MODIFICATION_TAG][0x30] =
+            new GrammarTransition(
+                LdapStatesEnum.MODIFY_REQUEST_MODIFICATION_TAG,
+                LdapStatesEnum.MODIFY_REQUEST_MODIFICATION_VALUE, null );
+
+        //    ...
+        //    modification    SEQUENCE OF SEQUENCE {
+        //        modification    AttributeTypeAndValues } }
+        //    AttributeTypeAndValues ::= SEQUENCE { (Value)
+        // Nothing to do
+        super.transitions[LdapStatesEnum.MODIFY_REQUEST_MODIFICATION_VALUE][0x30] =
+            new GrammarTransition(
+                LdapStatesEnum.MODIFY_REQUEST_MODIFICATION_VALUE,
+                LdapStatesEnum.MODIFY_REQUEST_TYPE_TAG, null );
+
+        //    AttributeTypeAndValues ::= SEQUENCE {
+        //        type    AttributeDescription, (Tag)
+        //        ...
+        // Nothing to do
+        super.transitions[LdapStatesEnum.MODIFY_REQUEST_TYPE_TAG][0x04] = new GrammarTransition(
+                LdapStatesEnum.MODIFY_REQUEST_TYPE_TAG, LdapStatesEnum.MODIFY_REQUEST_TYPE_VALUE,
+                null );
+
+        //    AttributeTypeAndValues ::= SEQUENCE {
+        //        type    AttributeDescription, (Value)
+        //        ...
+        // Store a new attribute type and values.
+        super.transitions[LdapStatesEnum.MODIFY_REQUEST_TYPE_VALUE][0x04] = new GrammarTransition(
+                LdapStatesEnum.MODIFY_REQUEST_TYPE_VALUE, LdapStatesEnum.MODIFY_REQUEST_VALS_TAG,
+                new GrammarAction( "Store type" )
+                {
+                    public void action( IAsn1Container container ) throws DecoderException
+                    {
+
+                        LdapMessageContainer ldapMessageContainer = ( LdapMessageContainer
)
+                            container;
+                        LdapMessage          ldapMessage          =
+                            ldapMessageContainer.getLdapMessage();
+                        ModifyRequest        modifyRequest        = ldapMessage.getModifyRequest();
+
+                        TLV                  tlv = ldapMessageContainer.getCurrentTLV();
+
+                        // Store the value. It can't be null
+                        if ( tlv.getLength().getLength() == 0 )
+                        {
+                            throw new DecoderException( "The type can't be null" );
+                        }
+                        else
+                        {
+                            modifyRequest.addAttributeTypeAndValues( new LdapString(
+                                    tlv.getValue().getData() ) );
+                        }
+                    }
+                } );
+
+        //    AttributeTypeAndValues ::= SEQUENCE {
+        //        ...
+        //        vals    SET OF AttributeValue } (Tag)
+        // Nothing to do
+        super.transitions[LdapStatesEnum.MODIFY_REQUEST_VALS_TAG][0x31] = new GrammarTransition(
+                LdapStatesEnum.MODIFY_REQUEST_VALS_TAG, LdapStatesEnum.MODIFY_REQUEST_VALS_VALUE,
+                null );
+
+        //    AttributeTypeAndValues ::= SEQUENCE {
+        //        ...
+        //        vals    SET OF AttributeValue } (Value)
+        // Nothing to do
+        super.transitions[LdapStatesEnum.MODIFY_REQUEST_VALS_VALUE][0x31] = new GrammarTransition(
+                LdapStatesEnum.MODIFY_REQUEST_VALS_VALUE,
+                LdapStatesEnum.MODIFY_REQUEST_ATTRIBUTE_VALUE_TAG, null );
+
+        //    AttributeTypeAndValues ::= SEQUENCE {
+        //        ...
+        //        vals    SET OF AttributeValue }
+        // AttributeValue ::= OCTET STRING (Tag)
+        // Nothing to do
+        super.transitions[LdapStatesEnum.MODIFY_REQUEST_ATTRIBUTE_VALUE_TAG][0x04] =
+            new GrammarTransition(
+                LdapStatesEnum.MODIFY_REQUEST_ATTRIBUTE_VALUE_TAG,
+                LdapStatesEnum.MODIFY_REQUEST_ATTRIBUTE_VALUE_VALUE, null );
+
+        //    AttributeTypeAndValues ::= SEQUENCE {
+        //        ...
+        //        vals    SET OF AttributeValue }
+        // AttributeValue ::= OCTET STRING (Tag)
+        // This is a loop, when dealing with multi-valued attributes
+        super.transitions[LdapStatesEnum.MODIFY_REQUEST_ATTRIBUTE_VALUE_OR_MODIFICATION_TAG][0x04]
=
+            new GrammarTransition(
+                LdapStatesEnum.MODIFY_REQUEST_ATTRIBUTE_VALUE_OR_MODIFICATION_TAG,
+                LdapStatesEnum.MODIFY_REQUEST_ATTRIBUTE_VALUE_VALUE, null );
+
+        //    AttributeTypeAndValues ::= SEQUENCE {
+        //        ...
+        //        vals    SET OF AttributeValue }
+        // AttributeValue ::= OCTET STRING (Value)
+        // Store a new attribute value.
+        super.transitions[LdapStatesEnum.MODIFY_REQUEST_ATTRIBUTE_VALUE_VALUE][0x04] =
+            new GrammarTransition(
+                LdapStatesEnum.MODIFY_REQUEST_ATTRIBUTE_VALUE_VALUE,
+                LdapStatesEnum.MODIFY_REQUEST_ATTRIBUTE_VALUE_OR_MODIFICATION_TAG,
+                new GrammarAction( "Store value" )
+                {
+                    public void action( IAsn1Container container ) throws DecoderException
+                    {
+
+                        LdapMessageContainer ldapMessageContainer = ( LdapMessageContainer
)
+                            container;
+                        LdapMessage          ldapMessage          =
+                            ldapMessageContainer.getLdapMessage();
+                        ModifyRequest        modifyRequest        = ldapMessage.getModifyRequest();
+
+                        TLV                  tlv = ldapMessageContainer.getCurrentTLV();
+
+                        // Store the value. It can't be null
+                        if ( tlv.getLength().getLength() == 0 )
+                        {
+                            modifyRequest.addAttributeValue( OctetString.EMPTY_STRING );
+                        }
+                        else
+                        {
+                            modifyRequest.addAttributeValue( new OctetString(
+                                    tlv.getValue().getData() ) );
+                        }
+                    }
+                } );
+
+    }
+
+    //~ Methods ------------------------------------------------------------------------------------
+
+    /**
+     * Get the instance of this grammar
+     *
+     * @return An instance on the SearchResultEntry Grammar
+     */
+    public static IGrammar getInstance()
+    {
+        return instance;
+    }
+}



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