1 files changed, 198 insertions, 0 deletions
diff --git a/framework/src/onos/protocols/pcep/pcepio/src/main/java/org/onosproject/pcepio/protocol/ver1/PcepLabelRangeResvMsgVer1.java b/framework/src/onos/protocols/pcep/pcepio/src/main/java/org/onosproject/pcepio/protocol/ver1/PcepLabelRangeResvMsgVer1.java
new file mode 100644
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--- /dev/null
+++ b/framework/src/onos/protocols/pcep/pcepio/src/main/java/org/onosproject/pcepio/protocol/ver1/PcepLabelRangeResvMsgVer1.java
@@ -0,0 +1,198 @@
+/*
+ * Copyright 2015 Open Networking Laboratory
+ *
+ * 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.onosproject.pcepio.protocol.ver1;
+
+import org.jboss.netty.buffer.ChannelBuffer;
+import org.onosproject.pcepio.exceptions.PcepParseException;
+import org.onosproject.pcepio.protocol.PcepLabelRange;
+import org.onosproject.pcepio.protocol.PcepLabelRangeResvMsg;
+import org.onosproject.pcepio.protocol.PcepMessageReader;
+import org.onosproject.pcepio.protocol.PcepMessageWriter;
+import org.onosproject.pcepio.protocol.PcepType;
+import org.onosproject.pcepio.protocol.PcepVersion;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import com.google.common.base.MoreObjects;
+
+/**
+ * Provides PCEP label range reserve message.
+ */
+class PcepLabelRangeResvMsgVer1 implements PcepLabelRangeResvMsg {
+
+    // Pcep version: 1
+
+    /*
+       The format of a PCLRResv message is as follows:
+
+               PCLRResv Message>::= <Common Header>
+                                    <label-range>
+          Where:
+
+               <label-range> ::= <SRP>
+                                 <labelrange-list>
+
+          Where
+               <labelrange-list>::=<LABEL-RANGE>[<labelrange-list>]
+     */
+    protected static final Logger log = LoggerFactory.getLogger(PcepLabelRangeResvMsgVer1.class);
+
+    public static final byte PACKET_VERSION = 1;
+    // LabelRangeResvMsgMinLength = COMMON-HEADER(4)+SrpObjMinLentgh(12)+LABEL-RANGE-MIN-LENGTH(12)
+    public static final int PACKET_MINIMUM_LENGTH = 28;
+    public static final PcepType MSG_TYPE = PcepType.LABEL_RANGE_RESERV;
+    //<label-range>
+    PcepLabelRange labelRange;
+
+    public static final PcepLabelRangeResvMsgVer1.Reader READER = new Reader();
+
+    /**
+     * Reader reads LabelRangeResv Message from the channel.
+     */
+    static class Reader implements PcepMessageReader<PcepLabelRangeResvMsg> {
+
+        @Override
+        public PcepLabelRangeResvMsg readFrom(ChannelBuffer cb) throws PcepParseException {
+
+            if (cb.readableBytes() < PACKET_MINIMUM_LENGTH) {
+                throw new PcepParseException("Channel buffer has less readable bytes than Packet minimum length.");
+            }
+            // fixed value property version == 1
+            byte version = cb.readByte();
+            version = (byte) (version >> PcepMessageVer1.SHIFT_FLAG);
+            if (version != PACKET_VERSION) {
+                throw new PcepParseException("Wrong version. Expected=PcepVersion.PCEP_1(1), got=" + version);
+            }
+            // fixed value property type == 15
+            byte type = cb.readByte();
+            if (type != MSG_TYPE.getType()) {
+                throw new PcepParseException("Wrong type. Expected=PcepType.LABEL_RANGE_RESERV(15), got=" + type);
+            }
+            short length = cb.readShort();
+            if (length < PACKET_MINIMUM_LENGTH) {
+                throw new PcepParseException("Wrong length.Expected to be >= " + PACKET_MINIMUM_LENGTH + ", is: "
+                        + length);
+            }
+            // parse <label-range>
+            PcepLabelRange labelRange = PcepLabelRangeVer1.read(cb);
+            return new PcepLabelRangeResvMsgVer1(labelRange);
+        }
+    }
+
+    /**
+     * Constructor to initialize PCEP label range.
+     *
+     * @param labelRange PCEP label range
+     */
+    PcepLabelRangeResvMsgVer1(PcepLabelRange labelRange) {
+        this.labelRange = labelRange;
+    }
+
+    /**
+     * Builder class for PCEP label range reserve message.
+     */
+    static class Builder implements PcepLabelRangeResvMsg.Builder {
+
+        PcepLabelRange labelRange = new PcepLabelRangeVer1();
+
+        @Override
+        public PcepVersion getVersion() {
+            return PcepVersion.PCEP_1;
+        }
+
+        @Override
+        public PcepType getType() {
+            return PcepType.LABEL_RANGE_RESERV;
+        }
+
+        @Override
+        public PcepLabelRangeResvMsg build() {
+            return new PcepLabelRangeResvMsgVer1(this.labelRange);
+        }
+
+        @Override
+        public PcepLabelRange getLabelRange() {
+            return this.labelRange;
+        }
+
+        @Override
+        public Builder setLabelRange(PcepLabelRange labelRange) {
+            this.labelRange = labelRange;
+            return this;
+        }
+    }
+
+    @Override
+    public void writeTo(ChannelBuffer cb) throws PcepParseException {
+        WRITER.write(cb, this);
+    }
+
+    static final Writer WRITER = new Writer();
+
+    /**
+     * Writer writes LabelRangeResv Message to the channel.
+     */
+    static class Writer implements PcepMessageWriter<PcepLabelRangeResvMsgVer1> {
+
+        @Override
+        public void write(ChannelBuffer cb, PcepLabelRangeResvMsgVer1 message) throws PcepParseException {
+
+            int startIndex = cb.writerIndex();
+            // first 3 bits set to version
+            cb.writeByte((byte) (PACKET_VERSION << PcepMessageVer1.SHIFT_FLAG));
+            // message type
+            cb.writeByte(MSG_TYPE.getType());
+            // Length will be set after calculating length, but currently set it as 0.
+            int msgLenIndex = cb.writerIndex();
+
+            cb.writeShort((short) 0);
+            //write Label Range
+            message.labelRange.write(cb);
+
+            // update message length field
+            int length = cb.writerIndex() - startIndex;
+            cb.setShort(msgLenIndex, (short) length);
+        }
+    }
+
+    @Override
+    public PcepVersion getVersion() {
+        return PcepVersion.PCEP_1;
+    }
+
+    @Override
+    public PcepType getType() {
+        return MSG_TYPE;
+    }
+
+    @Override
+    public PcepLabelRange getLabelRange() {
+        return this.labelRange;
+    }
+
+    @Override
+    public void setLabelRange(PcepLabelRange lr) {
+        this.labelRange = lr;
+    }
+
+    @Override
+    public String toString() {
+        return MoreObjects.toStringHelper(getClass())
+                .add("labelRange", labelRange)
+                .toString();
+    }
+}