HBASE-1411 Remove HLogEdit

git-svn-id: https://svn.apache.org/repos/asf/hadoop/hbase/trunk@774596 13f79535-47bb-0310-9956-ffa450edef68

src/java/org/apache/hadoop/hbase/regionserver/HLogEdit.java

@@ -1,183 +0,0 @@
-/**
- * Copyright 2007 The Apache Software Foundation
- *
- * 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.hadoop.hbase.regionserver;
-
-import java.io.DataInput;
-import java.io.DataOutput;
-import java.io.IOException;
-import java.io.UnsupportedEncodingException;
-
-import org.apache.hadoop.hbase.HConstants;
-import org.apache.hadoop.hbase.KeyValue;
-import org.apache.hadoop.hbase.io.BatchOperation;
-import org.apache.hadoop.hbase.util.Bytes;
-import org.apache.hadoop.io.Writable;
-
-/**
- * A log value.
- *
- * These aren't sortable; you need to sort by the matching HLogKey.
- * TODO: Remove.  Just output KVs.
- */
-public class HLogEdit implements Writable, HConstants {
-  /** Value written to HLog on a complete cache flush.  TODO: Remove.  Not used.
-   */
-  static byte [] COMPLETE_CACHE_FLUSH;
-  static {
-    try {
-      COMPLETE_CACHE_FLUSH = "HBASE::CACHEFLUSH".getBytes(UTF8_ENCODING);
-    } catch (UnsupportedEncodingException e) {
-      assert(false);
-    }
-  }
-
-  /** If transactional log entry, these are the op codes */
-  public enum TransactionalOperation {
-    /** start transaction */
-    START,
-    /** Equivalent to append in non-transactional environment */
-    WRITE,
-    /** Transaction commit entry */
-    COMMIT,
-    /** Abort transaction entry */
-    ABORT
-  }
-
-  private KeyValue kv;
-  private static final int MAX_VALUE_LEN = 128;
-  
-  private boolean isTransactionEntry;
-  private Long transactionId = null;
-  private TransactionalOperation operation;
-
-
-  /**
-   * Default constructor used by Writable
-   */
-  public HLogEdit() {
-    this(null);
-  }
-
-  /**
-   * Construct a fully initialized HLogEdit
-   * @param kv
-   */
-  public HLogEdit(final KeyValue kv) {
-    this.kv = kv;
-    this.isTransactionEntry = false;
-  }
-
-  /** 
-   * Construct a WRITE transaction. 
-   * @param transactionId
-   * @param op
-   * @param timestamp
-   */
-  public HLogEdit(long transactionId, final byte [] row, BatchOperation op,
-      long timestamp) {
-    this(new KeyValue(row, op.getColumn(), timestamp,
-      op.isPut()? KeyValue.Type.Put: KeyValue.Type.Delete, op.getValue()));
-    // This covers delete ops too...
-    this.transactionId = transactionId;
-    this.operation = TransactionalOperation.WRITE;
-    this.isTransactionEntry = true;
-  }
-
-  /** Construct a transactional operation (BEGIN, ABORT, or COMMIT). 
-   * 
-   * @param transactionId
-   * @param op
-   */
-  public HLogEdit(long transactionId, TransactionalOperation op) {
-    this.kv = KeyValue.LOWESTKEY;
-    this.transactionId = transactionId;
-    this.operation = op;
-    this.isTransactionEntry = true;
-  }
-
-  /** @return the KeyValue */
-  public KeyValue getKeyValue() {
-    return this.kv;
-  }
-
-  /** @return true if entry is a transactional entry */
-  public boolean isTransactionEntry() {
-    return isTransactionEntry;
-  }
-  
-  /**
-   * Get the transactionId, or null if this is not a transactional edit.
-   * 
-   * @return Return the transactionId.
-   */
-  public Long getTransactionId() {
-    return transactionId;
-  }
-
-  /**
-   * Get the operation.
-   * 
-   * @return Return the operation.
-   */
-  public TransactionalOperation getOperation() {
-    return operation;
-  }
-
-  /**
-   * @return First column name, timestamp, and first 128 bytes of the value
-   * bytes as a String.
-   */
-  @Override
-  public String toString() {
-    String value = "";
-    try {
-      value = (this.kv.getValueLength() > MAX_VALUE_LEN)?
-        new String(this.kv.getValue(), 0, MAX_VALUE_LEN,
-          HConstants.UTF8_ENCODING) + "...":
-        new String(this.kv.getValue(), HConstants.UTF8_ENCODING);
-    } catch (UnsupportedEncodingException e) {
-      throw new RuntimeException("UTF8 encoding not present?", e);
-    }
-    return this.kv.toString() +
-      (isTransactionEntry ? "/tran=" + transactionId + "/op=" +
-        operation.toString(): "") + "/value=" + value;
-  }
-  
-  // Writable
-
-  public void write(DataOutput out) throws IOException {
-    Bytes.writeByteArray(out, kv.getBuffer(), kv.getOffset(), kv.getLength());
-    out.writeBoolean(isTransactionEntry);
-    if (isTransactionEntry) {
-      out.writeLong(transactionId);
-      out.writeUTF(operation.name());
-    }
-  }
-  
-  public void readFields(DataInput in) throws IOException {
-    byte [] kvbytes = Bytes.readByteArray(in);
-    this.kv = new KeyValue(kvbytes, 0, kvbytes.length);
-    isTransactionEntry = in.readBoolean();
-    if (isTransactionEntry) {
-      transactionId = in.readLong();
-      operation = TransactionalOperation.valueOf(in.readUTF());
-    }
-  }
-}