-/* Copyright (C)2013 Pantheon Technologies, s.r.o. All rights reserved. */\r
-package org.opendaylight.openflowjava.protocol.impl.deserialization.factories;\r
-\r
-import java.util.ArrayList;\r
-import java.util.List;\r
-\r
-import io.netty.buffer.ByteBuf;\r
-\r
-import org.opendaylight.openflowjava.protocol.impl.deserialization.OFDeserializer;\r
-import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.common.types.rev130731.HelloElementType;\r
-import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.HelloMessage;\r
-import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.HelloMessageBuilder;\r
-import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.hello.Elements;\r
-import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.hello.ElementsBuilder;\r
-\r
-/**\r
- * @author michal.polkorab\r
- *\r
- */\r
-public class HelloMessageFactory implements OFDeserializer<HelloMessage> {\r
-\r
- private static HelloMessageFactory instance;\r
- \r
- private HelloMessageFactory() {\r
- // do nothing, just singleton\r
- }\r
- \r
- /**\r
- * @return singleton factory\r
- */\r
- public static synchronized HelloMessageFactory getInstance() {\r
- if (instance == null) {\r
- instance = new HelloMessageFactory();\r
- }\r
- return instance;\r
- }\r
- \r
- @Override\r
- public HelloMessage bufferToMessage(ByteBuf rawMessage, short version) {\r
- HelloMessageBuilder builder = new HelloMessageBuilder();\r
- builder.setVersion(version);\r
- builder.setXid(rawMessage.readUnsignedInt());\r
- if (rawMessage.readableBytes() > 0) {\r
- builder.setElements(readElement(rawMessage));\r
- }\r
- return builder.build();\r
- }\r
- \r
- private static List<Elements> readElement(ByteBuf input) {\r
- ElementsBuilder elementsBuilder = new ElementsBuilder();\r
- List<Elements> elementsList = new ArrayList<>();\r
- elementsBuilder.setType(HelloElementType.forValue(input.readUnsignedShort()));\r
- int arrayLength = input.readableBytes()/4;\r
- int[] versionBitmap = new int[arrayLength];\r
- for (int i = 0; i < arrayLength; i++) {\r
- versionBitmap[i] = (int) input.readUnsignedInt();\r
- }\r
- elementsBuilder.setVersionBitmap(readVersionBitmap(versionBitmap));\r
- elementsList.add(elementsBuilder.build());\r
- return elementsList;\r
- }\r
- \r
- private static List<Boolean> readVersionBitmap(int[] input){\r
- List<Boolean> versionBitmapList = new ArrayList<>();\r
- for (int i = 0; i < input.length; i++) {\r
- int mask = input[i];\r
- for (int j = 0; j < Integer.SIZE; j++) {\r
- versionBitmapList.add((mask & (1<<j)) != 0);\r
- }\r
- }\r
- return versionBitmapList;\r
- }\r
-}\r
+/*
+ * Copyright (c) 2013 Pantheon Technologies s.r.o. and others. All rights reserved.
+ *
+ * This program and the accompanying materials are made available under the
+ * terms of the Eclipse Public License v1.0 which accompanies this distribution,
+ * and is available at http://www.eclipse.org/legal/epl-v10.html
+ */
+
+package org.opendaylight.openflowjava.protocol.impl.deserialization.factories;
+
+import io.netty.buffer.ByteBuf;
+
+import java.util.ArrayList;
+import java.util.List;
+
+import org.opendaylight.openflowjava.protocol.api.extensibility.OFDeserializer;
+import org.opendaylight.openflowjava.protocol.api.util.EncodeConstants;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.common.types.rev130731.HelloElementType;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.HelloMessage;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.HelloMessageBuilder;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.hello.Elements;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.hello.ElementsBuilder;
+
+/**
+ * Translates Hello messages
+ * @author michal.polkorab
+ * @author timotej.kubas
+ */
+public class HelloMessageFactory implements OFDeserializer<HelloMessage> {
+
+ private static final byte HELLO_ELEMENT_HEADER_SIZE = 4;
+ @Override
+ public HelloMessage deserialize(ByteBuf rawMessage) {
+ HelloMessageBuilder builder = new HelloMessageBuilder();
+ builder.setVersion((short) EncodeConstants.OF13_VERSION_ID);
+ builder.setXid(rawMessage.readUnsignedInt());
+ if (rawMessage.readableBytes() > 0) {
+ builder.setElements(readElement(rawMessage));
+ }
+ return builder.build();
+ }
+
+ private static List<Elements> readElement(ByteBuf input) {
+ List<Elements> elementsList = new ArrayList<>();
+ while (input.readableBytes() > 0) {
+ ElementsBuilder elementsBuilder = new ElementsBuilder();
+ int type = input.readUnsignedShort();
+ int elementLength = input.readUnsignedShort();
+ if (type == HelloElementType.VERSIONBITMAP.getIntValue()) {
+ elementsBuilder.setType(HelloElementType.forValue(type));
+ int[] versionBitmap = new int[(elementLength - HELLO_ELEMENT_HEADER_SIZE) / 4];
+ for (int i = 0; i < versionBitmap.length; i++) {
+ versionBitmap[i] = (int) input.readUnsignedInt();
+ }
+ elementsBuilder.setVersionBitmap(readVersionBitmap(versionBitmap));
+ int paddingRemainder = elementLength % EncodeConstants.PADDING;
+ if (paddingRemainder != 0) {
+ input.readBytes(EncodeConstants.PADDING - paddingRemainder);
+ }
+ } else {
+ return elementsList;
+ }
+ elementsList.add(elementsBuilder.build());
+ }
+ return elementsList;
+ }
+
+ private static List<Boolean> readVersionBitmap(int[] input){
+ List<Boolean> versionBitmapList = new ArrayList<>();
+ for (int i = 0; i < input.length; i++) {
+ int mask = input[i];
+ for (int j = 0; j < Integer.SIZE; j++) {
+ versionBitmapList.add((mask & (1<<j)) != 0);
+ }
+ }
+ return versionBitmapList;
+ }
+}
Code Review / openflowjava.git / blobdiff