import quincy 17.2.0

[ceph.git] / ceph / src / arrow / java / vector / src / main / java / org / apache / arrow / vector / ipc / message / ArrowBlock.java

diff --git a/ceph/src/arrow/java/vector/src/main/java/org/apache/arrow/vector/ipc/message/ArrowBlock.java b/ceph/src/arrow/java/vector/src/main/java/org/apache/arrow/vector/ipc/message/ArrowBlock.java
new file mode 100644 (file)
index 0000000..a235102
--- /dev/null
+++ b/ceph/src/arrow/java/vector/src/main/java/org/apache/arrow/vector/ipc/message/ArrowBlock.java
@@ -0,0 +1,95 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You 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.arrow.vector.ipc.message;
+
+import org.apache.arrow.flatbuf.Block;
+
+import com.google.flatbuffers.FlatBufferBuilder;
+
+/** Metadata for an arrow message in a channel. */
+public class ArrowBlock implements FBSerializable {
+
+  private final long offset;
+  private final int metadataLength;
+  private final long bodyLength;
+
+  /**
+   * Constructs a new instance.
+   *
+   * @param offset The offset into the channel file where the block was written.
+   * @param metadataLength  The length of the flatbuffer metadata in the block.
+   * @param bodyLength The length of data in the block.
+   */
+  public ArrowBlock(long offset, int metadataLength, long bodyLength) {
+    super();
+    this.offset = offset;
+    this.metadataLength = metadataLength;
+    this.bodyLength = bodyLength;
+  }
+
+  public long getOffset() {
+    return offset;
+  }
+
+  public int getMetadataLength() {
+    return metadataLength;
+  }
+
+  public long getBodyLength() {
+    return bodyLength;
+  }
+
+  @Override
+  public int writeTo(FlatBufferBuilder builder) {
+    return Block.createBlock(builder, offset, metadataLength, bodyLength);
+  }
+
+  @Override
+  public int hashCode() {
+    final int prime = 31;
+    int result = 1;
+    result = prime * result + (int) (bodyLength ^ (bodyLength >>> 32));
+    result = prime * result + metadataLength;
+    result = prime * result + (int) (offset ^ (offset >>> 32));
+    return result;
+  }
+
+  @Override
+  public boolean equals(Object obj) {
+    if (this == obj) {
+      return true;
+    }
+    if (obj == null) {
+      return false;
+    }
+    if (getClass() != obj.getClass()) {
+      return false;
+    }
+    ArrowBlock other = (ArrowBlock) obj;
+    if (bodyLength != other.bodyLength) {
+      return false;
+    }
+    if (metadataLength != other.metadataLength) {
+      return false;
+    }
+    if (offset != other.offset) {
+      return false;
+    }
+    return true;
+  }
+}