Initial checkin of code generator (Java only at this stage) which allows for the simultaneous support of multiple AMQP versions. This is a temporary location, for comment and evaluation purposes only. This generator is NOT integrated with the rest of the QPID project; it is intended for stand-alone use only for now.

git-svn-id: https://svn.apache.org/repos/asf/incubator/qpid/trunk/qpid@465322 13f79535-47bb-0310-9956-ffa450edef68

3 files changed, 334 insertions, 0 deletions

diff --git a/gentools/templ.java/MethodBodyClass.tmpl b/gentools/templ.java/MethodBodyClass.tmpl
new file mode 100644
index 0000000000..a693adf9a5
--- /dev/null
+++ b/gentools/templ.java/MethodBodyClass.tmpl
@@ -0,0 +1,94 @@
+&{${CLASS}${METHOD}Body.java}
+/*
+ *
+ * Copyright (c) 2006 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.
+ *
+ */
+
+/*
+ * This file is auto-generated by ${GENERATOR} - do not modify.
+ * Supported AMQP versions:
+%{VLIST} *   ${major}-${minor}
+ */
+ 
+package org.apache.qpid.framing;
+
+import java.util.TreeMap;
+
+import org.apache.mina.common.ByteBuffer;
+
+public class ${CLASS}${METHOD}Body extends AMQMethodBody implements EncodableAMQDataBlock
+{
+    public static final TreeMap<String, Integer> classIdMap = new TreeMap<String, Integer>();
+    public static final TreeMap<String, Integer> methodIdMap = new TreeMap<String, Integer>();
+    
+    static
+    {
+${CLASS_ID_INIT}
+${METHOD_ID_INIT}
+    }
+    
+    // Fields declared in specification
+%{FLIST}    ${field_declaration}
+
+    // Constructor
+    public ${CLASS}${METHOD}Body(byte major, byte minor)
+    {
+        super(major, minor);
+    }
+
+    public int getClazz() { return classIdMap.get(major + "-" + minor); }
+    public int getMethod() { return methodIdMap.get(major + "-" + minor); }
+    
+    // Field methods		
+%{FLIST}    ${mb_field_get_method}
+
+    protected int getBodySize()
+    {      
+        int size = 0;
+%{FLIST}    ${mb_field_size}
+        return size;        
+    }
+
+    protected void writeMethodPayload(ByteBuffer buffer)
+    {
+%{FLIST}    ${mb_field_encode}
+    }
+
+    public void populateMethodBodyFromBuffer(ByteBuffer buffer) throws AMQFrameDecodingException
+    {
+%{FLIST}    ${mb_field_decode}
+    }
+
+    public String toString()
+    {
+        StringBuffer buf = new StringBuffer(super.toString());
+%{FLIST}    ${mb_field_to_string}
+        return buf.toString();
+    }
+
+    public static AMQFrame createAMQFrame(int channelId, byte major, byte minor
+%{FLIST}    ${mb_field_parameter_list}
+                                         )
+    {
+        ${CLASS}${METHOD}Body body = new ${CLASS}${METHOD}Body(major, minor);
+%{FLIST}    ${mb_field_body_initialize}
+        		 
+        AMQFrame frame = new AMQFrame();
+        frame.channel = channelId;
+        frame.bodyFrame = body;
+        return frame;
+    }
+}
diff --git a/gentools/templ.java/MethodRegistryClass.tmpl b/gentools/templ.java/MethodRegistryClass.tmpl
new file mode 100644
index 0000000000..d68ea28056
--- /dev/null
+++ b/gentools/templ.java/MethodRegistryClass.tmpl
@@ -0,0 +1,36 @@
+&{MainRegistry.java}
+/*
+ *
+ * Copyright (c) 2006 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.
+ *
+ */
+
+/*
+ * This file is auto-generated by ${GENERATOR} - do not modify.
+ * Supported AMQP versions:
+%{VLIST} *   ${major}-${minor}
+ */
+ 
+package org.apache.qpid.framing;
+
+import java.util.Map;
+
+class MainRegistry
+{
+    static void register(Map map, byte major, byte minor)
+    {
+%{CLIST}	${reg_map_put_method}
+    }
+}
diff --git a/gentools/templ.java/PropertyContentHeaderClass.tmpl b/gentools/templ.java/PropertyContentHeaderClass.tmpl
new file mode 100644
index 0000000000..bae99a4187
--- /dev/null
+++ b/gentools/templ.java/PropertyContentHeaderClass.tmpl
@@ -0,0 +1,204 @@
+&{${CLASS}PropertyContentHeader.java}
+/*
+ *
+ * Copyright (c) 2006 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.
+ *
+ */
+
+/*
+ * This file is auto-generated by ${GENERATOR} - do not modify.
+ * Supported AMQP versions:
+%{VLIST} *   ${major}-${minor}
+ */
+ 
+package org.apache.qpid.framing;
+
+import org.apache.log4j.Logger;
+import org.apache.mina.common.ByteBuffer;
+
+class ${CLASS}ContentHeaderProperties implements ContentHeaderProperties
+{
+    private static final Logger logger = Logger.getLogger(BasicContentHeaderProperties.class);
+
+    /**
+     * We store the encoded form when we decode the content header so that if we need to
+     * write it out without modifying it we can do so without incurring the expense of
+     * reencoding it.
+     */
+    private byte[] encodedBuffer;
+
+    /**
+     * Flag indicating whether the entire content header has been decoded yet.
+     */
+    private boolean decodedFlag = true;
+
+    /**
+     * We have some optimisations for partial decoding for maximum performance. The
+     * headers are used in the broker for routing in some cases so we can decode that
+     * separately.
+     */
+    private boolean decodedHeadersFlag = true;
+
+    /**
+     * We have some optimisations for partial decoding for maximum performance. The
+     * content type is used by all clients to determine the message type.
+     */
+    private boolean decodedContentTypeFlag = true;
+
+    /**
+     * AMQP major and minor version of this instance.
+     */
+     private byte major;
+     private byte minor;
+    
+    /**
+     * Property flags.
+     */
+    ${pch_property_flags_declare}
+
+    // Header fields from specification
+%{FLIST}    ${field_declaration}
+
+    /**
+     * Constructor
+     */
+    public ${CLASS}ContentHeaderProperties(byte major, byte minor)
+    {
+        this.major = major;
+        this.minor = minor;
+        
+        // Although one flag is initialized per property, the flags are used
+        // in ordinal order of the AMQP version represented by this instance,
+        // thus the number of flags actually used may be less than the total
+        // number defined.
+    	${pch_property_flags_initializer}
+    }
+        
+    public int getPropertyListSize()
+    {
+        if (encodedBuffer != null)
+        {
+            return encodedBuffer.length;
+        }
+        else
+        {
+            int size = 0;
+%{FLIST}            ${pch_field_list_size}
+            return size;
+        }
+    }
+
+    private void clearEncodedForm()
+    {
+        if (!decodedFlag && encodedBuffer != null)
+        {
+            //decode();
+        }
+        encodedBuffer = null;
+    }
+
+    public void setPropertyFlags(int[] compactPropertyFlags)
+        throws AMQProtocolVersionException
+    {
+        clearEncodedForm();
+${pch_compact_property_flags_check}
+%{FLIST}            ${pch_set_compact_property_flags}
+    }
+    
+    public int[] getPropertyFlags()
+    {
+    	int[] compactPropertyFlags = new int[] { 0 };
+${pch_compact_property_flags_initializer}
+%{FLIST}            ${pch_get_compact_property_flags}
+        return compactPropertyFlags;
+    }
+
+    public void writePropertyListPayload(ByteBuffer buffer)
+    {
+        if (encodedBuffer != null)
+        {
+            buffer.put(encodedBuffer);
+        }
+        else
+        {
+%{FLIST}            ${pch_field_list_payload}
+        }
+    }
+    
+    public void populatePropertiesFromBuffer(ByteBuffer buffer, int[] propertyFlags, int size)
+        throws AMQFrameDecodingException, AMQProtocolVersionException
+    {
+        setPropertyFlags(propertyFlags);
+
+        if (logger.isDebugEnabled())
+        {
+            logger.debug("Property flags: " + propertyFlags);
+        }
+        decode(buffer);
+        /*encodedBuffer = new byte[size];
+        buffer.get(encodedBuffer, 0, size);
+        decodedFlag = false;
+        decodedHeadersFlag = false;
+        decodedContentTypeFlag = false;*/
+    }
+    
+    private void decode(ByteBuffer buffer)
+    {
+        //ByteBuffer buffer = ByteBuffer.wrap(encodedBuffer);
+        int pos = buffer.position();
+        try
+        {
+%{FLIST}            ${pch_field_list_decode}
+	    // This line does nothing, but prevents a compiler error (Exception not thrown)
+            // if this block is empty.
+            if (false) throw new AMQFrameDecodingException("");
+        }
+        catch (AMQFrameDecodingException e)
+        {
+            throw new RuntimeException("Error in content header data: " + e);
+        }
+
+        final int endPos = buffer.position();
+        buffer.position(pos);
+        final int len = endPos - pos;
+        encodedBuffer = new byte[len];
+        final int limit = buffer.limit();
+        buffer.limit(endPos);
+        buffer.get(encodedBuffer, 0, len);
+        buffer.limit(limit);
+        buffer.position(endPos);
+        decodedFlag = true;
+    }
+
+    private void decodeIfNecessary()
+    {
+        if (!decodedFlag)
+        {
+            //decode();
+        }
+    }
+
+    // Field clear methods
+    
+%{FLIST}            ${pch_field_clear_methods}
+
+    // Field get methods
+
+%{FLIST}            ${pch_field_get_methods}
+
+    // Field set methods
+
+%{FLIST}            ${pch_field_set_methods}
+}